:root {
  color-scheme: light;
  --ground: #f7f4ee;
  --ground-strong: #eee9df;
  --panel: #fffdf9;
  --panel-raised: #ffffff;
  --soft: #edf3f8;
  --soft-2: #f8f6f1;
  --ink: #172033;
  --ink-2: #39445a;
  --muted: #5e687b;
  --line: #e2ddd4;
  --line-strong: #cbc5ba;
  --cobalt: #2557a7;
  --cobalt-deep: #17376f;
  --turquoise: #237d75;
  --coral: #e36d5b;
  --coral-deep: #b74738;
  --coral-soft: #fff2ef;
  --amber: #d99020;
  --success: #23815d;
  --danger-soft: #fff0ee;
  --success-soft: #e9f7f0;
  --nav-height: 72px;
  --radius-sm: 10px;
  --radius: 18px;
  --radius-lg: 26px;
  --shadow-sm: 0 1px 2px rgba(20,48,54,.05), 0 4px 14px rgba(20,48,54,.04);
  --shadow: 0 2px 5px rgba(20,48,54,.04), 0 18px 44px rgba(20,48,54,.08);
  --shadow-float: 0 18px 55px rgba(15,55,61,.18);
  --font-ui: "Segoe UI Variable Text", Aptos, "Segoe UI", Arial, sans-serif;
  --font-display: "Segoe UI Variable Display", "Aptos Display", "Segoe UI", Arial, sans-serif;
}
[data-theme="dark"] {
  color-scheme: dark;
  --ground: #0e171a;
  --ground-strong: #142125;
  --panel: #172428;
  --panel-raised: #1c2b30;
  --soft: #203438;
  --soft-2: #132025;
  --ink: #edf6f5;
  --ink-2: #c1d1d3;
  --muted: #9fb2b6;
  --line: #2b4146;
  --line-strong: #385157;
  --cobalt: #55c5b8;
  --cobalt-deep: #c5f0eb;
  --turquoise: #55c5b8;
  --coral: #ff8174;
  --coral-deep: #ffafa6;
  --coral-soft: #3a2524;
  --amber: #f2bb5d;
  --success: #65c99d;
  --danger-soft: #3a2525;
  --success-soft: #18352d;
  --shadow-sm: 0 1px 2px rgba(0,0,0,.2), 0 5px 16px rgba(0,0,0,.12);
  --shadow: 0 2px 5px rgba(0,0,0,.18), 0 22px 50px rgba(0,0,0,.2);
  --shadow-float: 0 20px 60px rgba(0,0,0,.42);
}

*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; }
html { min-width: 320px; scroll-behavior: smooth; }
html, body { overflow-x: clip; }
body {
  min-height: 100vh;
  background:
    radial-gradient(circle at 8% -5%, rgba(37,87,167,.10), transparent 30rem),
    radial-gradient(circle at 94% 24%, rgba(227,109,91,.07), transparent 27rem),
    var(--ground);
  color: var(--ink);
  font-family: var(--font-ui);
  font-size: 16px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
button, input, select, textarea { font: inherit; }
button { color: inherit; }
a { color: var(--cobalt); text-underline-offset: 3px; }
a:hover { color: var(--coral); }
button, a { -webkit-tap-highlight-color: transparent; }
button:focus-visible, a:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible, summary:focus-visible {
  outline: 3px solid color-mix(in srgb, var(--cobalt), transparent 28%);
  outline-offset: 3px;
}
html[data-platform="android"] button,
html[data-platform="android"] [role="button"],
html[data-platform="android"] input,
html[data-platform="android"] select,
html[data-platform="android"] textarea { min-height: 44px; }
.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0;
}
.hidden { display: none !important; }
.serif { font-family: var(--font-display); }
.muted { color: var(--muted); font-size: .9rem; }
.skip-link { position: fixed; left: 16px; top: 12px; z-index: 1000; padding: 9px 14px; border-radius: 10px; color: #fff; background: var(--cobalt-deep); transform: translateY(-150%); transition: transform .18s ease; }
.skip-link:focus { color: #fff; transform: translateY(0); }

/* Brand and application shell */
header {
  position: relative;
  background: color-mix(in srgb, var(--panel) 94%, transparent);
  border-bottom: 1px solid var(--line);
  padding: 24px 20px;
  text-align: center;
}
.app-header { min-height: 94px; display: grid; align-items: center; padding: 17px 28px; }
.brand-lockup {
  width: min(1120px,100%); margin: 0 auto; display: flex; align-items: center; justify-content: space-between; gap: 24px;
  text-align: left;
}
.brand-home,.header-actions,.header-status { display: flex; align-items: center; }
.brand-home { min-width: 0; gap: 13px; }
.header-actions { justify-content: flex-end; gap: 8px; }
.header-status { gap: 8px; margin-right: 2px; }
.brand-mark {
  display: grid; place-items: center; width: 48px; height: 48px; flex: 0 0 48px;
  border-radius: 15px; color: #fff; background: linear-gradient(145deg,#15978c,#0b655f);
  font: 800 25px/1 var(--font-display); box-shadow: 0 10px 28px rgba(15,118,110,.24);
}
header h1 { color: var(--cobalt-deep); font: 750 1.65rem/1.05 var(--font-display); letter-spacing: -.02em; }
header .sub { margin-top: 4px; color: var(--muted); font-size: .72rem; font-weight: 700; letter-spacing: .13em; text-transform: uppercase; }
.frieze { display: none; }
.headstreak {
  color: var(--coral); font-size: .78rem; font-weight: 850; white-space: nowrap;
}
.syncpill {
  padding: 5px 10px; border: 0; border-radius: 999px; font-family: inherit; font-size: .7rem; font-weight: 800;
}
.syncpill.ok { color: var(--success); background: var(--success-soft); }
.syncpill.syncing { color: var(--cobalt); background: var(--soft); }
.syncpill.error { color: var(--coral); background: var(--danger-soft); }
.syncpill.error:not(:disabled) { cursor: pointer; text-decoration: underline; }
.themebtn,.profilebtn {
  width: 44px; height: 44px; flex: 0 0 44px;
  display: grid; place-items: center; border: 1px solid var(--line); border-radius: 14px;
  background: var(--panel); color: var(--cobalt-deep); cursor: pointer; box-shadow: var(--shadow-sm);
  transition: transform .18s ease, border-color .18s ease, background .18s ease;
}
.helpbtn {
  width: 44px; height: 44px; flex: 0 0 44px;
  display: grid; place-items: center; border: 1px solid var(--line); border-radius: 14px;
  color: var(--cobalt-deep); background: var(--panel); box-shadow: var(--shadow-sm);
  font-size: 1rem; font-weight: 900; cursor: pointer;
  transition: transform .18s ease,border-color .18s ease,background .18s ease;
}
.helpbtn:hover,.profilebtn:hover { transform: translateY(-2px); border-color: var(--cobalt); background: var(--soft); }
.helpbtn.active,.profilebtn.active { color: #fff; border-color: var(--cobalt); background: var(--cobalt); box-shadow: 0 8px 20px rgba(15,118,110,.2); }
.profilebtn svg { width: 21px; height: 21px; fill: none; stroke: currentColor; stroke-width: 1.9; stroke-linecap: round; stroke-linejoin: round; }
.modebtn {
  min-width: 92px; height: 44px; flex: 0 0 auto;
  display: inline-flex; align-items: center; justify-content: center; gap: 7px; padding: 0 13px;
  border: 1px solid var(--line); border-radius: 14px; color: var(--cobalt-deep); background: var(--panel);
  box-shadow: var(--shadow-sm); font-size: .76rem; font-weight: 900; letter-spacing: .04em; cursor: pointer;
  transition: transform .18s ease,border-color .18s ease,background .18s ease;
}
.modebtn:hover { transform: translateY(-2px); border-color: var(--cobalt); background: var(--soft); }
.modebtn::before { content: ""; width: 8px; height: 8px; border-radius: 50%; background: var(--coral); box-shadow: 12px 0 0 var(--cobalt); margin-right: 12px; }
.themebtn:hover { transform: translateY(-2px); border-color: var(--cobalt); background: var(--soft); }
.commandbtn {
  height: 44px; min-width: 158px; display: inline-flex; align-items: center; gap: 9px; padding: 0 11px 0 14px;
  border: 1px solid var(--line); border-radius: 14px; color: var(--muted); background: var(--soft-2);
  box-shadow: var(--shadow-sm); font-size: .78rem; cursor: pointer; transition: transform .18s ease,border-color .18s ease,background .18s ease;
}
.commandbtn:hover { transform: translateY(-2px); border-color: var(--cobalt); color: var(--ink); background: var(--panel); }
.commandbtn > span:first-child { color: var(--cobalt); font-size: 1.2rem; line-height: 1; }
.command-label { flex: 1; text-align: left; font-weight: 750; }
kbd { padding: 2px 6px; border: 1px solid var(--line-strong); border-bottom-width: 2px; border-radius: 6px; color: var(--muted); background: var(--panel); font: 700 .62rem/1.4 var(--font-ui); white-space: nowrap; }

nav {
  position: sticky; top: 0; z-index: 40; height: var(--nav-height); display: flex;
  justify-content: center; align-items: center; gap: 8px; padding: 10px 18px;
  background: color-mix(in srgb, var(--panel) 86%, transparent);
  border-bottom: 1px solid color-mix(in srgb,var(--line),transparent 12%);
  backdrop-filter: blur(18px) saturate(1.25);
}
nav button {
  position: relative; min-width: 128px; height: 50px; display: inline-flex; align-items: center;
  justify-content: center; gap: 9px; padding: 0 18px; border: 0; border-radius: 15px;
  color: var(--muted); background: transparent; font-size: .88rem; font-weight: 750; cursor: pointer;
  transition: color .18s ease, background .18s ease, transform .18s ease;
}
nav button:hover { color: var(--ink); background: var(--soft); }
nav button.active { color: var(--cobalt-deep); background: var(--soft); }
nav button.active::after {
  content: ""; position: absolute; left: 22px; right: 22px; bottom: -10px; height: 3px;
  border-radius: 4px 4px 0 0; background: var(--cobalt);
}
.ni { width: 21px; height: 21px; display: grid; place-items: center; }
.ni svg { width: 100%; height: 100%; fill: none; stroke: currentColor; stroke-width: 1.9; stroke-linecap: round; stroke-linejoin: round; }
.navcount {
  position: absolute; top: 4px; right: 7px; min-width: 20px; height: 20px; display: none;
  align-items: center; justify-content: center; padding: 0 5px; border: 2px solid var(--panel);
  border-radius: 999px; color: #fff; background: var(--coral); font-size: .64rem; font-weight: 900;
}
#sessionBar {
  position: sticky; top: var(--nav-height); z-index: 35; display: flex; align-items: center;
  justify-content: space-between; gap: 14px; padding: 10px max(20px,calc((100% - 1080px)/2));
  color: #fff; background: linear-gradient(90deg,#0b625c,#11867d); font-size: .84rem;
  box-shadow: 0 8px 20px rgba(15,118,110,.16);
}
#sessionBar button { padding: 5px 12px; border: 1px solid rgba(255,255,255,.5); border-radius: 9px; color: #fff; background: transparent; cursor: pointer; }

main { width: min(1120px,100%); margin: 0 auto; padding: 38px 22px 82px; }
.view { display: none; }
.view.active { display: block; animation: view-in .26s ease both; }
@keyframes view-in { from { opacity: 0; transform: translateY(8px); } }
.view,.card,.pathunit,.exam-card,.course-unit { min-width: 0; }
h1,h2,h3,p,button,a,summary,label { overflow-wrap: break-word; }

/* Surfaces and typography */
.card {
  padding: 25px; margin-bottom: 18px; border: 1px solid var(--line); border-radius: var(--radius);
  background: var(--panel); box-shadow: var(--shadow-sm);
}
.card h2 {
  display: flex; align-items: center; gap: 10px; margin-bottom: 15px;
  color: var(--cobalt-deep); font: 750 1.25rem/1.2 var(--font-display); letter-spacing: -.015em;
}
.star {
  width: 9px; height: 24px; flex: 0 0 9px; border-radius: 99px;
  background: linear-gradient(180deg,var(--cobalt),color-mix(in srgb,var(--cobalt),#fff 25%));
}
.sectionintro { margin: 4px 0 28px; max-width: 720px; }
.sectionintro h2 { margin: 4px 0 8px; color: var(--cobalt-deep); font: 750 clamp(1.8rem,4vw,2.55rem)/1.08 var(--font-display); letter-spacing: -.035em; }
.sectionintro > .muted { max-width: 66ch; font-size: .96rem; line-height: 1.65; }
.eyebrow { color: var(--coral); font-size: .72rem; font-weight: 900; letter-spacing: .16em; text-transform: uppercase; }

.btn {
  min-height: 44px; display: inline-flex; align-items: center; justify-content: center; gap: 7px;
  padding: 10px 19px; border: 1px solid transparent; border-radius: 13px; color: #fff;
  background: linear-gradient(145deg,#2f66bd,#214d94); box-shadow: 0 8px 20px rgba(37,87,167,.18);
  font-size: .9rem; font-weight: 800; cursor: pointer;
  transition: transform .16s ease, box-shadow .16s ease, filter .16s ease;
}
.btn:hover { transform: translateY(-2px); filter: brightness(1.04); box-shadow: 0 12px 28px rgba(37,87,167,.24); }
.btn:active { transform: translateY(0) scale(.98); }
.btn:disabled { opacity: .48; cursor: default; transform: none; box-shadow: none; }
.btn.red { background: linear-gradient(145deg,#ed6b5f,#cf493f); box-shadow: 0 8px 20px rgba(223,90,79,.2); }
.btn.danger { background: linear-gradient(145deg,#c8443b,#a82f29); box-shadow: 0 8px 20px rgba(168,47,41,.2); }
.btn.teal { background: linear-gradient(145deg,#12867d,#0c6d66); }
.btn.ghost { color: var(--cobalt); border-color: var(--line-strong); background: var(--panel); box-shadow: none; }
.btn.ghost:hover { border-color: var(--cobalt); background: var(--soft); box-shadow: none; }
.btn.subtle { color: var(--muted); border-color: transparent; background: transparent; box-shadow: none; }
.btn.subtle:hover { color: var(--ink); border-color: var(--line); background: var(--soft-2); box-shadow: none; }
.rowflex { display: flex; align-items: center; flex-wrap: wrap; gap: 10px; }

/* Today */
#view-dash.active { display: grid; grid-template-columns: repeat(12,minmax(0,1fr)); gap: 18px; align-items: start; }
#view-dash > .card { min-width: 0; margin: 0; }
.level-card { grid-column: 1 / -1; padding: 19px 22px; }
.today-hero {
  grid-column: 1 / -1; overflow: hidden; position: relative; padding: 34px 30px;
  --cobalt: #70d7cc; --cobalt-deep: #ffffff; --ink: #d8eeeb; --muted: #c4deda;
  --soft: rgba(255,255,255,.11); --panel: rgba(255,255,255,.08);
  color: #e8f5f3; border: 0; background:
    radial-gradient(circle at 85% 15%,rgba(255,255,255,.15),transparent 20rem),
    linear-gradient(135deg,#17376f,#2557a7 62%,#2f9c91);
  box-shadow: 0 24px 60px rgba(23,55,111,.23);
  text-align: center;
}
.today-hero::before, .today-hero::after {
  content: ""; position: absolute; border: 1px solid rgba(255,255,255,.11); border-radius: 50%; pointer-events: none;
}
.today-hero::before { width: 250px; height: 250px; right: -80px; top: -110px; }
.today-hero::after { width: 160px; height: 160px; right: 65px; bottom: -120px; }
.today-hero h2 { justify-content: center; color: #fff; font-size: 1.55rem; }
.today-hero #goalRing { margin-bottom: 16px; }
.today-primary-recommendation {
  width: min(720px,100%); display: flex; align-items: center; justify-content: space-between; gap: 16px; margin: 0 auto 18px; padding: 15px 18px;
  border: 1px solid rgba(255,255,255,.2); border-radius: 15px; background: var(--panel); text-align: left; box-shadow: none;
}
.today-primary-recommendation h3 { margin: 4px 0; color: #fff; font: 750 1.05rem/1.2 var(--font-display); }
.today-primary-recommendation .eyebrow { color: #d8eeeb; }
.today-primary-recommendation .muted { margin: 0; color: #c4deda; }
.today-primary-recommendation .btn.ghost { color: #fff; border-color: rgba(255,255,255,.28); background: transparent; }
.hero-actions { justify-content: center; gap: 10px; }
.hero-actions .btn { padding: 12px 24px; font-size: 1rem; }
.today-hero .btn.red { background: #fff; color: #0c625c; box-shadow: 0 12px 25px rgba(0,0,0,.15); }
.today-hero .btn.teal { color: #fff; border-color: rgba(255,255,255,.28); background: rgba(255,255,255,.1); box-shadow: none; backdrop-filter: blur(5px); }
.daily-plan-controls { width: min(820px,100%); display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 12px; margin: 20px auto 14px; text-align: left; }
.daily-plan-controls > div { padding: 13px; border: 1px solid rgba(255,255,255,.2); border-radius: 15px; background: rgba(255,255,255,.08); }
.daily-plan-controls > div > span { display: block; margin-bottom: 7px; color: #d8eeeb; font-size: .7rem; font-weight: 850; letter-spacing: .08em; text-transform: uppercase; }
.daily-plan-choice { display: flex; flex-wrap: wrap; gap: 6px; }
.daily-plan-choice button { min-height: 44px; flex: 1 1 auto; padding: 7px 11px; border: 1px solid rgba(255,255,255,.22); border-radius: 11px; color: #e8f5f3; background: transparent; font-size: .76rem; font-weight: 800; cursor: pointer; }
.daily-plan-choice button.active { color: #0c625c; border-color: #fff; background: #fff; }
.daily-plan-preview { width: min(820px,100%); margin: 14px auto 18px; text-align: left; }
.daily-plan-list { display: grid; grid-template-columns: repeat(auto-fit,minmax(180px,1fr)); gap: 8px; padding: 0; list-style: none; }
.daily-plan-list li { min-width: 0; display: grid; grid-template-columns: 30px minmax(0,1fr); align-items: center; gap: 9px; padding: 11px; border-radius: 13px; background: rgba(255,255,255,.1); }
.daily-plan-list li > span { width: 28px; height: 28px; display: grid; place-items: center; border-radius: 9px; color: #0c625c; background: #fff; font-weight: 900; }
.daily-plan-list b,.daily-plan-list small { display: block; }
.daily-plan-list b { color: #fff; font-size: .84rem; }
.daily-plan-list small { margin-top: 2px; color: #c4deda; font-size: .68rem; }
.daily-plan-list .plan-stage { display: inline-flex; margin-bottom: 5px; padding: 3px 7px; border-radius: 999px; color: #fff; background: rgba(255,255,255,.16); font-size: .63rem; font-weight: 900; letter-spacing: .06em; text-transform: uppercase; }
.plan-replace { margin-top: 8px; padding: 0; border: 0; color: #fff; background: transparent; font-size: .68rem; font-weight: 800; text-decoration: underline; text-underline-offset: 3px; cursor: pointer; }
.plan-replace:hover { color: #dceaff; }
.daily-plan-resume { padding: 14px; border-radius: 13px; color: #fff; background: rgba(255,255,255,.1); text-align: center; }
.daily-plan-result { max-width: 540px; margin: 0 auto; text-align: center; }
.daily-plan-result h2 { justify-content: center; }
.daily-plan-result p { margin: 10px 0 16px; }
.session-result-list { display: grid; gap: 7px; margin: 14px 0; padding: 0; list-style: none; text-align: left; }
.session-result-list li { display: flex; align-items: center; gap: 9px; padding: 9px 11px; border-radius: 11px; background: var(--soft); }
.session-result-list span { min-width: 70px; color: var(--cobalt); font-size: .7rem; font-weight: 900; text-transform: uppercase; }
.session-result-stats { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); gap: 8px; }
.session-result-stats span { padding: 10px 8px; border: 1px solid var(--line); border-radius: 11px; color: var(--muted); font-size: .72rem; }
.session-result-stats b { display: block; color: var(--cobalt-deep); font-size: 1.05rem; }
.today-resume { grid-column: 1 / -1; display: flex; align-items: center; justify-content: space-between; gap: 22px; border-color: color-mix(in srgb,var(--cobalt),transparent 62%); background: linear-gradient(135deg,var(--panel),var(--soft)); }
.today-resume h2 { margin: 3px 0 5px; }
.today-resume .muted { margin: 0; }
.today-discovery-grid { grid-column: 1 / -1; display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); gap: 18px; min-width: 0; }
.today-discovery-grid > .card { min-width: 0; margin: 0; }
.today-discovery-grid > .word-card,
.today-discovery-grid > .expression-card,
.today-discovery-grid > .mistake-card { grid-column: auto; min-height: 210px; }
.today-shortcuts { grid-column: 1 / -1; }
.today-collapsed { display: none; }
.levelrow { display: flex; align-items: center; justify-content: space-between; gap: 14px; margin-bottom: 9px; }
.levelname { color: var(--cobalt-deep); font: 750 1.1rem/1.2 var(--font-display); }
.xpbar, .progressbar { height: 9px; overflow: hidden; border-radius: 99px; background: var(--soft); }
.xpbar .fill, .progressbar .fill { height: 100%; border-radius: inherit; background: linear-gradient(90deg,var(--cobalt),#44b8ac); transition: width .4s ease; }

/* Dashboard and profile */
.dashboard-grid { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 18px; align-items: start; }
.dashboard-grid .card { margin: 0; }
.dashboard-grid .span-2 { grid-column: 1 / -1; }
.progress-summary { display: grid; grid-template-columns: minmax(0,1fr) auto; align-items: end; gap: 20px; margin-bottom: 18px; border-top-color: var(--turquoise); }
.progress-summary h2 { margin: 5px 0 14px; color: var(--cobalt-deep); }
.progress-summary-metrics { display: grid; grid-template-columns: repeat(4,minmax(0,1fr)); gap: 8px; }
.progress-summary-metrics > div { min-width: 0; padding: 10px; border-radius: 12px; background: var(--soft-2); }
.progress-summary-metrics b,.progress-summary-metrics span { display: block; }
.progress-summary-metrics b { color: var(--cobalt-deep); font: 800 1.35rem/1 var(--font-display); }
.progress-summary-metrics span { margin-top: 5px; color: var(--muted); font-size: .68rem; font-weight: 750; line-height: 1.25; }
.progress-summary-actions { display: flex; flex-wrap: wrap; gap: 9px; justify-content: flex-end; }
.progress-detail { padding: 0; overflow: hidden; }
.progress-detail summary { display: flex; cursor: pointer; list-style: none; padding: 19px 20px; }
.progress-detail summary::-webkit-details-marker { display: none; }
.progress-detail summary > span { display: grid; grid-template-columns: auto minmax(0,1fr); column-gap: 8px; align-items: center; width: 100%; }
.progress-detail summary b { color: var(--cobalt-deep); font: 750 1.04rem/1.2 var(--font-display); }
.progress-detail summary small { grid-column: 2; margin-top: 4px; color: var(--muted); font-size: .73rem; }
.progress-detail summary::after { content: '⌄'; align-self: center; margin-left: 12px; color: var(--cobalt-deep); font-weight: 900; }
.progress-detail[open] summary { border-bottom: 1px solid var(--line); }
.progress-detail[open] summary::after { transform: rotate(180deg); }
.progress-detail-body { padding: 18px 20px 20px; }
.profile-layout { display: grid; grid-template-columns: minmax(320px,.82fr) minmax(0,1.18fr); align-items: start; gap: 18px; }
.profile-stack { display: grid; gap: 18px; min-width: 0; }
.profile-layout .card { margin: 0; }
.profile-settings-card { position: sticky; top: calc(var(--nav-height) + 18px); }
.profile-settings-card .setrow:first-child,.profile-stack .setrow:first-child { padding-top: 3px; }
.profile-settings-card .setrow:last-child,.profile-stack .setrow:last-child { padding-bottom: 3px; }
.statgrid { display: grid; grid-template-columns: repeat(4,minmax(0,1fr)); gap: 12px; }
.stat { padding: 17px 12px; text-align: center; border: 1px solid var(--line); border-radius: 15px; background: var(--soft-2); }
.stat .num { color: var(--cobalt-deep); font: 800 2rem/1.1 var(--font-display); }
.stat .lbl { margin-top: 5px; color: var(--muted); font-size: .67rem; font-weight: 850; letter-spacing: .09em; text-transform: uppercase; }
.mission { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 12px 2px; border-bottom: 1px solid var(--line); font-size: .9rem; }
.mission:last-child { border-bottom: 0; }
.mission .mdone { color: var(--success); font-weight: 850; }
.mission .mtodo { flex: 0 0 auto; color: var(--muted); font-weight: 750; }
.badgegrid { display: grid; grid-template-columns: repeat(auto-fit,minmax(112px,1fr)); gap: 10px; }
.badge { min-height: 105px; display: grid; place-content: center; padding: 13px 8px; text-align: center; border: 1px solid var(--line); border-radius: 15px; background: var(--soft-2); font-size: .74rem; line-height: 1.35; }
.badge.locked { opacity: .4; filter: grayscale(1); }
.badge .bi { display: block; margin-bottom: 6px; font-size: 1.65rem; }
.chartwrap { padding: 6px 0 20px; }
.chart { height: 115px; display: flex; align-items: flex-end; gap: 6px; }
.chart .bar { position: relative; flex: 1; min-height: 4px; border-radius: 5px 5px 2px 2px; background: color-mix(in srgb,var(--cobalt),#fff 24%); }
.chart .bar.today { background: var(--coral); }
.chart .bar span { position: absolute; bottom: -21px; left: 0; right: 0; color: var(--muted); text-align: center; font-size: .58rem; }
.hardchip { display: inline-flex; align-items: center; gap: 5px; margin: 0 6px 7px 0; padding: 7px 11px; border: 1px solid var(--line); border-radius: 10px; color: var(--cobalt-deep); background: var(--soft-2); font: 700 .9rem var(--font-display); cursor: pointer; }
.hardchip:hover { border-color: var(--cobalt); background: var(--soft); }
.setrow { display: flex; align-items: center; justify-content: space-between; gap: 18px; padding: 14px 0; border-bottom: 1px solid var(--line); }
.setrow:last-child { border-bottom: 0; }
.setrow label { display: inline-flex; align-items: center; gap: 8px; }
.backuprow { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 14px; }

/* Learning path */
.learn-section { margin: 30px 0; }
.learn-section-head { display: flex; align-items: end; justify-content: space-between; gap: 18px; margin-bottom: 14px; }
.learn-section-head h2 { margin: 4px 0 0; color: var(--cobalt-deep); }
.learn-recommendation { display: flex; align-items: center; justify-content: space-between; gap: 22px; margin-bottom: 26px; border-top-color: var(--coral); background: linear-gradient(135deg,var(--panel),var(--coral-soft)); }
.learn-recommendation h2 { margin: 6px 0; color: var(--cobalt-deep); }
.learn-recommendation p { margin: 0; }
.beginner-track { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 10px; }
.beginner-step { min-height: 88px; display: grid; grid-template-columns: 38px minmax(0,1fr); gap: 12px; align-items: start; padding: 14px; border: 1px solid var(--line); border-radius: 15px; color: var(--ink); background: var(--panel); text-align: left; cursor: pointer; }
.beginner-step:hover,.beginner-step.recommended { border-color: var(--cobalt); background: var(--soft); }
.beginner-step.complete { border-color: color-mix(in srgb,var(--success),transparent 48%); background: var(--success-soft); }
.beginner-step-number { display: grid; place-items: center; width: 36px; height: 36px; border-radius: 11px; color: #fff; background: var(--cobalt); font-weight: 850; }
.beginner-step.complete .beginner-step-number { background: var(--success); }
.beginner-step small,.beginner-step b,.beginner-step span span { display: block; }
.beginner-step small { color: var(--muted); font-size: .7rem; font-weight: 800; }
.beginner-step b { margin: 3px 0; color: var(--cobalt-deep); }
.beginner-step span span { color: var(--muted); font-size: .78rem; }
.learn-category-grid { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 12px; }
.learn-category-card { min-height: 145px; display: flex; flex-direction: column; align-items: flex-start; gap: 7px; padding: 17px; border: 1px solid var(--line); border-radius: 17px; color: var(--ink); background: var(--panel); box-shadow: var(--shadow-sm); text-align: left; cursor: pointer; }
.learn-category-card:hover { border-color: var(--turquoise); box-shadow: var(--shadow); }
.learn-category-card b { color: var(--cobalt-deep); font-size: 1.05rem; }
.learn-category-card > span:not(.pill) { color: var(--muted); line-height: 1.45; }
.learn-category-card small { margin-top: auto; color: var(--turquoise); font-weight: 800; }
.learn-quick-links { display: grid; grid-template-columns: repeat(4,minmax(0,1fr)); gap: 10px; }
.learn-quick-links button { min-height: 92px; display: grid; grid-template-columns: minmax(0,1fr) auto; gap: 4px 10px; padding: 14px; border: 1px solid var(--line); border-radius: 14px; color: var(--ink); background: var(--panel); text-align: left; cursor: pointer; }
.learn-quick-links button:hover { border-color: var(--cobalt); }
.learn-quick-links b,.learn-quick-links small { min-width: 0; }
.learn-quick-links small { color: var(--muted); }
.learn-quick-links button > span { grid-column: 2; grid-row: 1 / span 2; align-self: center; color: var(--cobalt); }
.lesson-library-intro { margin-bottom: 18px; }
.lesson-library-intro h2 { margin: 5px 0 7px; color: var(--cobalt-deep); }
.lesson-recommendation { display: flex; align-items: center; justify-content: space-between; gap: 18px; margin-bottom: 16px; border-top-color: var(--coral); }
.lesson-recommendation h3 { margin: 5px 0 0; color: var(--cobalt-deep); }
.lesson-filter-bar { display: grid; gap: 8px; margin-bottom: 18px; }
.lesson-filter-bar .catchips { margin: 0; }
.lesson-filter-bar .catchips button[aria-pressed="true"] { color: #fff; border-color: var(--cobalt); background: var(--cobalt); }
.lesson-level-filter button { min-width: 56px; }
.lesson-library-grid { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 12px; }
.lesson-library-card { min-height: 155px; display: flex; flex-direction: column; align-items: flex-start; gap: 7px; padding: 17px; border: 1px solid var(--line); border-radius: 17px; color: var(--ink); background: var(--panel); box-shadow: var(--shadow-sm); text-align: left; cursor: pointer; }
.lesson-library-card:hover { border-color: var(--turquoise); box-shadow: var(--shadow); }
.lesson-library-card.complete { border-color: color-mix(in srgb,var(--success),transparent 45%); background: var(--success-soft); }
.lesson-card-top { width: 100%; display: flex; justify-content: space-between; gap: 8px; }
.lesson-card-level,.lesson-card-recommended { padding: 4px 8px; border-radius: 999px; color: var(--cobalt-deep); background: var(--soft); font-size: .68rem; font-weight: 850; }
.lesson-card-recommended { color: var(--coral); background: var(--coral-soft); }
.lesson-library-card b { color: var(--cobalt-deep); font-size: 1rem; }
.lesson-library-card small { color: var(--muted); }
.beginner-step:focus-visible,
.learn-category-card:focus-visible,
.course-destination:focus-visible,
.learn-level-tab:focus-visible,
.lesson-library-card:focus-visible,
.lesson-filter-bar button:focus-visible {
  outline: 3px solid color-mix(in srgb, var(--cobalt), transparent 18%);
  outline-offset: 3px;
}
.lesson-card-state { margin-top: auto; color: var(--turquoise); font-size: .75rem; font-weight: 800; }
.lesson-filter-empty { grid-column: 1 / -1; text-align: center; }
.course-destinations { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); gap: 12px; margin-bottom: 18px; }
.course-destination { min-width: 0; display: grid; grid-template-columns: minmax(0,1fr) auto; gap: 3px 12px; padding: 17px; border: 1px solid var(--line); border-radius: 16px; color: var(--ink); background: var(--panel); box-shadow: var(--shadow-sm); text-align: left; cursor: pointer; }
.course-destination b,.course-destination small { min-width: 0; }
.course-destination small { color: var(--muted); }
.course-destination span { grid-column: 2; grid-row: 1 / span 2; align-self: center; color: var(--cobalt); font-size: 1.25rem; }
.course-destination:hover { border-color: var(--cobalt); transform: translateY(-1px); }
.course-destination.primary { color: #fff; border-color: var(--cobalt); background: linear-gradient(145deg,var(--cobalt),var(--cobalt-deep)); }
.course-destination.primary small,.course-destination.primary span { color: #eaf1ff; }
.learn-level-tabs { display: flex; flex-wrap: wrap; gap: 8px; margin: 0 0 18px; }
.learn-level-tab { min-width: 64px; min-height: 44px; padding: 9px 14px; border: 1px solid var(--line); border-radius: 12px; color: var(--ink); background: var(--panel); font-weight: 850; cursor: pointer; }
.learn-level-tab:hover,.learn-level-tab[aria-pressed="true"] { color: #fff; border-color: var(--cobalt); background: var(--cobalt); }
.course-recommended { margin-bottom: 18px; }
.course-level { margin: 14px 0; overflow: hidden; }
.course-level summary { display: flex; cursor: pointer; list-style: none; padding: 18px; }
.course-level summary::-webkit-details-marker { display: none; }
.course-level summary::after { content: '⌄'; margin-left: auto; color: var(--cobalt-deep); font-weight: 900; }
.course-level[open] summary::after { transform: rotate(180deg); }
.course-level summary small { display: block; margin-top: 4px; color: var(--muted); }
.course-level .course-grid { padding: 0 18px 18px; }
.level-card { order: 1; }
[data-study-style="guided"] .today-hero { order: 2; }
[data-study-style="guided"] .today-shortcuts { order: 3; }
[data-study-style="mixed"] .today-hero { order: 2; }
[data-study-style="mixed"] .today-shortcuts { order: 3; }
[data-study-style="free"] .today-shortcuts { order: 2; }
[data-study-style="free"] .today-hero { order: 3; }
@media (max-width: 760px) {
  .today-discovery-grid { grid-template-columns: 1fr; }
  .today-primary-recommendation { align-items: stretch; flex-direction: column; }
  .today-primary-recommendation .btn { width: 100%; }
}
.course-level { margin-bottom: 32px; }
.course-level-head { display: flex; align-items: center; gap: 13px; margin-bottom: 14px; }
.course-level-head h3 { margin: 0 0 2px; color: var(--cobalt-deep); font: 750 1.25rem/1.2 var(--font-display); }
.course-level-head p { margin: 0; }
.course-grid { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 12px; }
.course-unit {
  display: grid; grid-template-columns: 48px minmax(0,1fr) auto; align-items: center; gap: 13px; width: 100%; padding: 16px;
  border: 1px solid var(--line); border-radius: 17px; color: var(--ink); background: var(--panel); text-align: left; cursor: pointer;
  box-shadow: var(--shadow-sm); transition: transform .18s ease,border-color .18s ease,box-shadow .18s ease;
}
.course-unit:hover:not(:disabled) { transform: translateY(-2px); border-color: var(--turquoise); box-shadow: var(--shadow); }
.course-unit.locked { opacity: .55; cursor: not-allowed; box-shadow: none; }
.course-unit.complete { border-color: color-mix(in srgb,var(--success),transparent 48%); background: linear-gradient(135deg,var(--panel),var(--success-soft)); }
.course-icon { display: grid; place-items: center; width: 46px; height: 46px; border-radius: 14px; background: var(--soft); font-size: 1.35rem; }
.course-unit.complete .course-icon { color: var(--success); background: var(--success-soft); font-weight: 900; }
.course-copy { min-width: 0; display: flex; flex-direction: column; gap: 4px; }
.course-name { color: var(--cobalt-deep); font-size: 1rem; font-weight: 850; }
.course-meta { color: var(--muted); font-size: .73rem; }
.course-copy .progressbar { height: 5px; margin: 3px 0 0; }
.course-pct { color: var(--muted); font-size: .75rem; font-weight: 800; }
.course-back { margin-bottom: 14px; }
.course-hero { display: grid; grid-template-columns: 74px minmax(0,1fr) 76px; align-items: center; gap: 19px; border-top-color: var(--turquoise); }
.course-hero h2 { margin: 8px 0 5px; font-size: 1.85rem; }
.course-hero p { margin: 0; }
.course-hero-icon { display: grid; place-items: center; width: 72px; height: 72px; border-radius: 21px; background: var(--soft); font-size: 2rem; }
.course-ring { display: grid; place-items: center; width: 70px; height: 70px; border: 7px solid var(--soft); border-top-color: var(--turquoise); border-radius: 50%; color: var(--cobalt-deep); font-weight: 900; }
.course-stats { margin: 14px 0; }
.course-tip { position: relative; overflow: hidden; border-top-color: var(--coral); background: linear-gradient(135deg,var(--panel),color-mix(in srgb,var(--coral-soft),var(--panel) 55%)); }
.course-tip::after { content: ""; position: absolute; right: -35px; top: -35px; width: 110px; height: 110px; border-radius: 50%; background: color-mix(in srgb,var(--coral),transparent 88%); }
.course-tip .eyebrow { color: var(--coral); }
.course-tip h2 { margin: 5px 0 8px; }
.course-tip p { max-width: 760px; margin: 0; color: var(--ink-2); line-height: 1.6; }
.tip-example { display: inline-flex; margin-top: 13px; padding: 9px 13px; border: 1px solid color-mix(in srgb,var(--coral),transparent 60%); border-radius: 11px; color: var(--cobalt-deep); background: var(--panel); font: 750 .96rem/1.35 var(--font-display); }
.unit-actions { display: flex; flex-wrap: wrap; gap: 9px; align-items: center; }
.unit-checks { display: grid; grid-template-columns: repeat(3,1fr); gap: 8px; margin-top: 16px; }
.unit-checks span { padding: 10px 12px; border-radius: 12px; color: var(--muted); background: var(--ground); font-size: .78rem; }
.unit-checks span.done { color: var(--success); background: var(--success-soft); font-weight: 750; }
.unit-word-grid { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 7px 16px; }
.unit-word-legend { display: flex; flex-wrap: wrap; gap: 12px; margin: -4px 0 12px; color: var(--muted); font-size: .75rem; }
.unit-word-legend span::before { content: ""; display: inline-block; width: 9px; height: 9px; margin-right: 6px; border-radius: 50%; background: var(--line); }
.unit-word-legend .introduced::before { background: var(--warning,#d89b18); }
.unit-word-legend .learned::before { background: var(--success); }
.unit-word { display: grid; grid-template-columns: 30px minmax(0,1fr) minmax(0,1fr); align-items: center; gap: 8px; padding: 9px; border-bottom: 1px solid var(--line); }
.unit-word b { color: var(--cobalt-deep); }
.unit-word > span { color: var(--muted); font-size: .84rem; text-align: right; }
.unit-word.introduced { border-radius: 10px; border-color: transparent; background: var(--warning-soft,#fff3cd); }
.unit-word.learned { border-radius: 10px; border-color: transparent; background: var(--success-soft); }


/* Personalized practice and weekly report */
.weekly-layout { display: grid; grid-template-columns: 92px minmax(0,1fr); align-items: center; gap: 20px; }
.weekly-ring { display: grid; place-content: center; width: 88px; height: 88px; border-radius: 50%; background: conic-gradient(var(--turquoise) var(--weekly),var(--soft) 0); position: relative; text-align: center; }
.weekly-ring::before { content: ""; position: absolute; inset: 9px; border-radius: 50%; background: var(--panel); }
.weekly-ring b,.weekly-ring span { position: relative; z-index: 1; }
.weekly-ring b { color: var(--cobalt-deep); font: 800 1.25rem var(--font-display); }
.weekly-ring span { color: var(--muted); font-size: .65rem; font-weight: 800; text-transform: uppercase; }
.weekly-copy h3 { margin: 0 0 5px; color: var(--cobalt-deep); }
.weekly-copy p { margin: 0 0 11px; }
.coach-note { display: grid; grid-template-columns: 52px minmax(0,1fr) auto; align-items: center; gap: 15px; margin-bottom: 18px; padding: 18px; border: 1px solid color-mix(in srgb,var(--turquoise),transparent 55%); border-radius: 18px; background: linear-gradient(135deg,var(--soft),var(--panel)); }
.coach-note p { margin: 4px 0 0; color: var(--muted); }
.coach-avatar { display: grid; place-items: center; width: 48px; height: 48px; margin: 0 auto; border-radius: 15px; color: #fff; background: linear-gradient(145deg,var(--turquoise),var(--cobalt-deep)); font: 850 1.25rem var(--font-display); box-shadow: var(--shadow-sm); }
.practice-grid { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); gap: 14px; }
.practice-card { min-height: 230px; display: flex; flex-direction: column; margin: 0; }
.practice-card h3 { margin: 13px 0 7px; color: var(--cobalt-deep); font: 780 1.1rem var(--font-display); }
.practice-card p { flex: 1; }
.practice-card .btn { width: 100%; }
.practice-icon { display: grid; place-items: center; width: 47px; height: 47px; border-radius: 14px; background: var(--soft); font-size: 1.35rem; }
.practice-summary { margin-top: 15px; }
.practice-filters { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 16px; }
.practice-filters button { min-height: 42px; padding: 8px 15px; border: 1px solid var(--line-strong); border-radius: 999px; color: var(--ink-2); background: var(--panel); font-weight: 800; cursor: pointer; }
.practice-filters button:hover { border-color: var(--cobalt); color: var(--cobalt); }
.practice-filters button.active { color: #fff; border-color: var(--cobalt); background: var(--cobalt); }
.practice-category-grid { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); gap: 14px; }
.practice-category { min-width: 0; margin: 0; padding: 20px; }
.practice-category-head { min-height: 98px; display: grid; grid-template-columns: 46px minmax(0,1fr); align-items: start; gap: 12px; padding-bottom: 16px; border-bottom: 1px solid var(--line); }
.practice-category-head > span { width: 44px; height: 44px; display: grid; place-items: center; border-radius: 13px; color: #fff; background: linear-gradient(145deg,var(--turquoise),var(--cobalt-deep)); font: 850 1rem/1 var(--font-display); }
.practice-category:nth-child(2) .practice-category-head > span { background: linear-gradient(145deg,var(--coral),var(--coral-deep)); }
.practice-category:nth-child(3) .practice-category-head > span { color: var(--cobalt-deep); background: linear-gradient(145deg,var(--amber),#f6c55a); }
.practice-category-head h3 { color: var(--cobalt-deep); font: 780 1.1rem/1.2 var(--font-display); }
.practice-category-head p { margin-top: 5px; color: var(--muted); font-size: .78rem; line-height: 1.45; }
.practice-links { display: grid; gap: 6px; margin-top: 12px; }
.practice-link { width: 100%; min-height: 58px; display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 9px 10px; border: 1px solid transparent; border-radius: 12px; color: var(--ink); background: transparent; text-align: left; cursor: pointer; }
.practice-link:hover { border-color: var(--line); background: var(--soft); }
.practice-link b,.practice-link small { display: block; }
.practice-link b { color: var(--ink); font-size: .84rem; }
.practice-link small { margin-top: 3px; color: var(--muted); font-size: .67rem; }
.practice-link i { flex: 0 0 auto; color: var(--cobalt); font-style: normal; font-size: 1rem; transition: transform .18s ease; }
.practice-link:hover i { transform: translateX(3px); }

/* Mixed lesson player */
.mixed-card { width: min(680px,100%); max-height: calc(100vh - 36px); overflow: auto; }
.mixed-head { display: grid; grid-template-columns: 42px minmax(0,1fr) auto; align-items: center; gap: 12px; margin-bottom: 12px; }
.icon-close { width: 38px; height: 38px; border: 1px solid var(--line); border-radius: 12px; color: var(--muted); background: var(--panel); cursor: pointer; }
.mixed-prompt { min-height: 110px; display: grid; place-content: center; margin: 18px 0; padding: 22px; color: var(--cobalt-deep); background: var(--soft); border-radius: 18px; text-align: center; font: 780 1.55rem/1.35 var(--font-display); }
.mixed-options { display: grid; gap: 9px; margin: 15px 0; }
.mixed-options button { min-height: 52px; padding: 12px 15px; border: 1px solid var(--line); border-radius: 13px; color: var(--ink); background: var(--panel); text-align: left; font: 750 .96rem/1.35 var(--font-ui); cursor: pointer; }
.mixed-options button:hover:not(:disabled) { border-color: var(--turquoise); background: var(--soft); }
.mixed-options button.correct { color: var(--success); border-color: var(--success); background: var(--success-soft); }
.mixed-options button.wrong { color: var(--coral); border-color: var(--coral); background: var(--danger-soft); }
.listen-stage { min-height: 220px; display: grid; place-items: center; align-content: center; gap: 10px; margin: 16px 0; border-radius: 18px; background: var(--soft); text-align: center; }
.sound-orb { display: grid; place-items: center; width: 78px; height: 78px; border-radius: 50%; color: #fff; background: linear-gradient(145deg,var(--turquoise),var(--cobalt)); font-size: 2rem; box-shadow: 0 14px 32px rgba(15,118,110,.22); }
.speak-panel { display: flex; flex-wrap: wrap; align-items: center; justify-content: center; gap: 9px; padding: 10px 0; text-align: center; }
.target-say { width: 100%; margin-bottom: 8px; color: var(--cobalt-deep); font: 800 1.7rem var(--font-display); }
.mixed-card > input { margin: 15px 0 8px; }
.mixed-card .feedback p { margin: 7px 0 0; line-height: 1.55; }

/* Conversation simulator */
.scenario-grid { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 11px; margin-top: 16px; }
.scenario-grid button { display: grid; grid-template-columns: 44px minmax(0,1fr); gap: 3px 11px; align-items: center; padding: 15px; border: 1px solid var(--line); border-radius: 15px; color: var(--ink); background: var(--panel); text-align: left; cursor: pointer; }
.scenario-grid button:hover { border-color: var(--turquoise); background: var(--soft); }
.scenario-grid button > span { grid-row: span 2; font-size: 1.45rem; }
.scenario-grid button b { color: var(--cobalt-deep); }
.scenario-grid button small { color: var(--muted); }
.conversation-head { display: flex; justify-content: space-between; align-items: center; gap: 12px; margin-bottom: 16px; color: var(--muted); }
.chat-scene { min-height: 180px; display: flex; align-items: flex-start; justify-content: space-between; gap: 14px; padding: 24px; border-radius: 19px; background: var(--soft); }
.chat-bubble { max-width: 78%; padding: 15px 17px; border-radius: 18px 18px 18px 4px; color: var(--cobalt-deep); background: var(--panel); box-shadow: var(--shadow-sm); font: 750 1.06rem/1.5 var(--font-display); }
.chat-bubble small { display: block; margin-top: 7px; color: var(--muted); font: 400 .8rem/1.4 var(--font-ui); }
.chat-avatar { display: grid; place-items: center; width: 48px; height: 48px; flex: 0 0 48px; border-radius: 50%; color: #fff; background: var(--coral); font-weight: 900; }
.translation-toggle { margin: 8px 0 15px; padding: 4px 0; border: 0; color: var(--turquoise); background: transparent; font-size: .8rem; font-weight: 750; cursor: pointer; }
.conversation-result { padding: 25px; text-align: center; }
.conversation-result h3 { margin: 12px 0; color: var(--cobalt-deep); }

/* Writing lab */
.writing-prompt { display: grid; grid-template-columns: 56px minmax(0,1fr); gap: 15px; align-items: center; margin-bottom: 16px; padding: 18px; border-radius: 18px; background: var(--soft); }
.writing-prompt h3 { margin: 4px 0 5px; color: var(--cobalt-deep); font: 760 1.2rem/1.35 var(--font-display); }
.writing-prompt p { margin: 0; }
#writingInput { width: 100%; min-height: 210px; margin-bottom: 12px; resize: vertical; line-height: 1.65; }
#writingArea .feedback ul { margin: 8px 0 0; padding-left: 20px; }
.writing-model-answer { margin-top: 10px; padding-top: 9px; border-top: 1px solid var(--line); }
.writing-model-answer summary { color: var(--cobalt-deep); cursor: pointer; font-weight: 800; }
.writing-model-answer p { margin: 8px 0 0; color: var(--ink); font-weight: 500; line-height: 1.55; }
.smallnote { min-height: 18px; margin-top: 9px; color: var(--muted); font-size: .78rem; }
.technical-card summary { color: var(--cobalt-deep); cursor: pointer; font-weight: 800; }
.technical-card[open] summary { margin-bottom: 13px; }
.lesson-detail-card { margin-top: 14px; }
.lesson-completion-area { display: grid; gap: 12px; margin-top: 20px; padding-top: 18px; border-top: 1px solid var(--line); }
.lesson-completion-actions { display: flex; flex-wrap: wrap; gap: 10px; }
.exercise-area { margin-top: 16px; }
.read-title { margin-bottom: 10px; color: var(--cobalt-deep); font-size: 1.38rem; }
#vocabActions { margin: 6px 0 12px; }
.vocab-filter-panel { display: grid; gap: 10px; margin-bottom: 12px; }
.vocab-filter-head { display: flex; align-items: center; justify-content: space-between; gap: 12px; color: var(--cobalt-deep); }
.vocab-level-filter, .vocab-unit-filter { display: flex; flex-wrap: wrap; gap: 7px; }
.vocab-level-filter button, .vocab-unit-filter button, .vocab-favorite-filter {
  min-height: 40px; padding: 8px 14px; border: 1px solid var(--line); border-radius: 999px;
  color: var(--muted); background: var(--panel); font: 800 .8rem var(--font-ui); cursor: pointer;
}
.vocab-level-filter button { min-width: 56px; }
.vocab-unit-filter button span { margin-left: 4px; opacity: .65; }
.vocab-level-filter button:hover, .vocab-unit-filter button:hover, .vocab-favorite-filter:hover { color: var(--cobalt); border-color: var(--cobalt); background: var(--soft); }
.vocab-level-filter button.active, .vocab-unit-filter button.active, .vocab-favorite-filter.active { color: #fff; border-color: var(--cobalt); background: var(--cobalt); }
.vocab-level-filter button:focus-visible, .vocab-unit-filter button:focus-visible, .vocab-favorite-filter:focus-visible, .vocab-subcategory-filter button:focus-visible { outline: 3px solid var(--focus, var(--cobalt)); outline-offset: 2px; }
.vocab-subcategory-filter { margin-top: -2px; }

/* Tabs, filters and forms */
.catchips, .readbtns { display: flex; gap: 7px; flex-wrap: wrap; margin-bottom: 17px; }
.readbtns { flex-wrap: nowrap; align-items: center; overflow-x: auto; padding: 4px 2px 9px; scrollbar-width: thin; scrollbar-color: var(--line-strong) transparent; }
.readbtns > .btn { flex: 0 0 auto; }
.read-mode-tabs { position: sticky; left: 0; z-index: 2; flex: 0 0 auto; flex-wrap: nowrap; margin: 0 4px 0 0; padding-right: 11px; border-right: 1px solid var(--line); background: var(--panel); }
.catchips button, .readbtns .btn {
  min-height: 38px; padding: 7px 14px; border: 1px solid var(--line); border-radius: 999px;
  color: var(--muted); background: var(--panel); box-shadow: none; font-size: .8rem; font-weight: 800; cursor: pointer;
}
.catchips button:hover, .readbtns .btn:hover { transform: none; color: var(--cobalt); border-color: var(--cobalt); background: var(--soft); box-shadow: none; }
.catchips button.active, .readbtns .btn:not(.ghost) { color: #fff; border-color: var(--cobalt); background: var(--cobalt); }
.searchbox { position: relative; margin-bottom: 16px; }
input[type="text"], input[type="password"], input[type="search"], select, textarea {
  width: 100%; min-height: 48px; padding: 11px 14px; border: 1px solid var(--line-strong);
  border-radius: 13px; color: var(--ink); background: var(--panel); font-family: var(--font-ui);
  transition: border-color .16s ease, box-shadow .16s ease;
}
input[type="text"]:focus, input[type="password"]:focus, input[type="search"]:focus, select:focus, textarea:focus {
  border-color: var(--cobalt); box-shadow: 0 0 0 4px color-mix(in srgb,var(--cobalt),transparent 86%); outline: 0;
}
select { width: auto; min-width: 135px; }
input[type="checkbox"] { width: 18px; height: 18px; accent-color: var(--cobalt); }
.form-label { display: block; margin: 3px 0 6px; color: var(--ink-2); font-size: .78rem; font-weight: 800; }
.fchecks { display: flex; gap: 15px; flex-wrap: wrap; margin: 12px 0 17px; }
.fchecks label { display: flex; align-items: center; gap: 6px; color: var(--ink-2); font-size: .85rem; cursor: pointer; }
.charbtns { display: flex; gap: 7px; flex-wrap: wrap; margin: 10px 0 14px; }
.charbtns button {
  width: 44px; height: 42px; border: 1px solid var(--line-strong); border-radius: 11px;
  color: var(--cobalt-deep); background: var(--soft-2); font: 750 1rem var(--font-display); cursor: pointer;
}
.charbtns button:hover { border-color: var(--cobalt); background: var(--soft); }

/* Exercise surfaces */
#view-verbs > .card, #view-cases > .card, #view-sent > .card, #view-quiz > .card, #view-read > .card, #view-vocab > .card, #view-phrase > .card, #view-conversation > .card, #view-writing > .card {
  max-width: 900px; margin-left: auto; margin-right: auto; padding: clamp(22px,4vw,34px);
}
.pill { display: inline-flex; align-items: center; min-height: 27px; padding: 4px 10px; border-radius: 999px; color: #fff; background: var(--cobalt); font-size: .66rem; font-weight: 900; letter-spacing: .07em; text-transform: uppercase; }
.speak, .favbtn {
  min-width: 42px; min-height: 42px; display: inline-grid; place-items: center; padding: 0 7px;
  border: 0; border-radius: 50%; color: var(--cobalt); background: transparent; font-size: 1.08rem; cursor: pointer;
}
.speak:hover, .favbtn:hover { background: var(--soft); }
.favbtn.on { color: var(--amber); }
.quizopt {
  width: 100%; min-height: 54px; display: flex; align-items: center; margin-bottom: 10px; padding: 13px 16px;
  border: 1px solid var(--line); border-radius: 14px; color: var(--ink); background: var(--panel);
  text-align: left; font-size: .95rem; font-weight: 650; cursor: pointer;
  transition: transform .14s ease, border-color .14s ease, background .14s ease;
}
.quizopt:hover:not(:disabled) { transform: translateX(4px); border-color: var(--cobalt); background: var(--soft-2); }
.quizopt.correct { color: var(--success); border-color: color-mix(in srgb,var(--success),transparent 45%); background: var(--success-soft); }
.quizopt.wrong { color: var(--coral-deep); border-color: color-mix(in srgb,var(--coral),transparent 35%); background: var(--danger-soft); }
.quizopt:disabled { cursor: default; }
.feedback { min-height: 25px; margin-top: 14px; padding: 11px 13px; border-radius: 12px; font-size: .9rem; font-weight: 800; }
.feedback:empty { padding: 0; }
.feedback.ok { color: var(--success); background: var(--success-soft); }
.feedback.bad { color: var(--coral-deep); background: var(--danger-soft); }
.feedback u { text-decoration: underline wavy var(--coral); font-weight: 900; }
.exercise-feedback { display: grid; gap: 7px; font-weight: 500; }
.exercise-feedback > b { color: inherit; font-weight: 900; }
.exercise-feedback p { margin: 0; line-height: 1.5; }
.exercise-feedback strong { color: var(--cobalt-deep); }
.matchgrid { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 9px; margin-top: 15px; }
.matchbtn {
  min-height: 52px; padding: 11px 12px; border: 1px solid var(--line); border-radius: 13px;
  color: var(--ink); background: var(--panel); font-size: .9rem; cursor: pointer;
}
.matchbtn:hover { border-color: var(--cobalt); }
.matchbtn.sel { border-color: var(--cobalt); background: var(--soft); }
.matchbtn.ok { color: var(--success); border-color: var(--success); background: var(--success-soft); }
.matchbtn.bad { color: var(--coral-deep); border-color: var(--coral); background: var(--danger-soft); }
.chipline { min-height: 58px; display: flex; flex-wrap: wrap; gap: 8px; padding: 11px; margin: 11px 0; border: 1px dashed var(--line-strong); border-radius: 14px; background: var(--soft-2); }
.chip { padding: 8px 13px; border: 1px solid var(--line-strong); border-radius: 11px; color: var(--cobalt-deep); background: var(--panel); font: 700 1rem var(--font-display); cursor: pointer; }
.chip:hover { border-color: var(--cobalt); background: var(--soft); }

/* Lessons and pathway */
.pathunit { margin-bottom: 18px; padding: 20px; border: 1px solid var(--line); border-radius: var(--radius); background: var(--panel); box-shadow: var(--shadow-sm); }
.pathhead { display: grid; grid-template-columns: auto 1fr auto; align-items: center; gap: 13px; margin-bottom: 17px; }
.pathlvl { min-width: 45px; height: 31px; display: grid; place-items: center; border-radius: 10px; color: #fff; background: var(--cobalt); font-size: .73rem; font-weight: 900; }
.pathname { color: var(--cobalt-deep); font: 750 1.15rem var(--font-display); }
.pathprog { color: var(--muted); font-size: .78rem; font-weight: 850; }
.pathnodes { display: grid; grid-template-columns: repeat(auto-fit,minmax(160px,1fr)); gap: 9px; }
.pathnode {
  min-height: 76px; display: flex; align-items: center; gap: 11px; padding: 11px 13px;
  border: 1px solid var(--line); border-radius: 14px; color: var(--ink); background: var(--soft-2); text-align: left; cursor: pointer;
}
.pathnode:not(:disabled):hover { transform: translateY(-2px); border-color: var(--cobalt); background: var(--soft); }
.pathnode.next { color: var(--cobalt-deep); border-color: color-mix(in srgb,var(--cobalt),transparent 28%); box-shadow: 0 0 0 3px color-mix(in srgb,var(--cobalt),transparent 89%); }
.pathnode.done { color: var(--success); background: var(--success-soft); }
.pathnode.locked { opacity: .48; cursor: not-allowed; }
.pnicon { width: 34px; height: 34px; display: grid; place-items: center; flex: 0 0 34px; border-radius: 11px; background: var(--panel); }
.pntitle { font-size: .84rem; font-weight: 780; line-height: 1.25; }
.lesson-item { display: flex; align-items: center; justify-content: space-between; gap: 15px; padding: 17px 18px; margin-bottom: 10px; border: 1px solid var(--line); border-radius: 14px; background: var(--panel); cursor: pointer; }
.lesson-item:hover { border-color: var(--cobalt); box-shadow: var(--shadow-sm); }
.lesson-item .lt { color: var(--cobalt-deep); font: 730 1rem var(--font-display); }
.lesson-item .done { color: var(--success); font-size: .75rem; font-weight: 850; }
.lesson-body { color: var(--ink-2); font-size: 1rem; line-height: 1.75; }
.lesson-body p { margin: 12px 0; }
.lesson-body h2, .lesson-body h3 { color: var(--cobalt-deep); font-family: var(--font-display); line-height: 1.25; }
.lesson-body h2 { margin-top: 28px; font-size: 1.35rem; }
.lesson-body h3 { margin-top: 21px; font-size: 1.1rem; }
.lesson-body .ex { margin: 15px 0; padding: 13px 15px; border-left: 4px solid var(--cobalt); border-radius: 0 12px 12px 0; background: var(--soft); }
.lesson-body .tw { color: var(--cobalt-deep); font-family: var(--font-display); font-weight: 750; }
.lesson-dialog { display: grid; gap: 8px; margin: 18px 0; padding: 16px; border: 1px solid var(--line); border-radius: 15px; background: var(--soft-2); }
.lesson-dialog p { margin: 0; padding: 10px 12px; border-radius: 11px; background: var(--panel); }
.lesson-dialog p:nth-child(even) { margin-left: min(9%,42px); border-left: 3px solid var(--turquoise); }
.lesson-dialog p:nth-child(odd) { margin-right: min(9%,42px); border-left: 3px solid var(--cobalt); }
.lesson-dialog small { display: block; margin-top: 3px; color: var(--muted); line-height: 1.45; }
.tablewrap { overflow-x: auto; margin: 15px 0; border: 1px solid var(--line); border-radius: 14px; }
table.gram { width: 100%; min-width: 640px; border-collapse: collapse; font-size: .86rem; }
table.gram th { padding: 10px 12px; color: #fff; background: var(--cobalt); text-align: left; }
table.gram td { padding: 10px 12px; border-bottom: 1px solid var(--line); }
table.gram td.tr { color: var(--cobalt-deep); font-family: var(--font-display); font-weight: 750; }

/* Vocabulary and reading */
.vocabrow { display: grid; grid-template-columns: minmax(0,1fr) minmax(0,1fr); align-items: center; gap: 20px; min-height: 64px; padding: 9px 4px; border-bottom: 1px solid var(--line); }
.vocabrow .t { display: flex; align-items: center; color: var(--cobalt-deep); font: 750 1.04rem var(--font-display); }
.vocabrow > span:last-child { display: flex; align-items: center; justify-content: flex-end; gap: 7px; color: var(--ink-2); text-align: right; }
.submuted { padding: 3px 7px; border-radius: 7px; color: var(--muted); background: var(--soft); font-size: .66rem; white-space: nowrap; }
.readtext { color: var(--ink-2); font: 1.2rem/2 var(--font-display); }
.rw { padding: 2px 1px; border-bottom: 1px dotted var(--cobalt); border-radius: 3px; cursor: pointer; }
.rw:hover, .rw.hl { color: var(--coral-deep); background: var(--danger-soft); border-bottom-color: transparent; }
.glossbox { min-height: 56px; margin-top: 18px; padding: 14px 16px; border: 1px solid var(--line); border-left: 4px solid var(--coral); border-radius: 13px; color: var(--ink-2); background: var(--soft-2); }
.glossbox .gt { color: var(--cobalt-deep); font: 750 1.05rem var(--font-display); }

/* Shared lesson controls */
.icon-close { width: 40px; height: 40px; border: 1px solid var(--line); border-radius: 12px; color: var(--muted); background: var(--soft); font-size: 1.4rem; cursor: pointer; }

/* Fast navigation and consistent view context */
.auto-view-intro { display: flex; align-items: flex-end; justify-content: space-between; gap: 24px; max-width: none; padding-bottom: 20px; border-bottom: 1px solid var(--line); }
.auto-view-intro > div { max-width: 720px; }
.auto-view-intro .view-shortcut { flex: 0 0 auto; color: var(--muted); font-size: .72rem; }
.command-card { width: min(680px,100%); max-height: min(720px,calc(100vh - 36px)); display: flex; flex-direction: column; overflow: hidden; border: 1px solid var(--line); border-radius: 24px; background: var(--panel-raised); box-shadow: var(--shadow-float); animation: modal-in .2s ease both; }
.command-head { display: flex; align-items: flex-start; justify-content: space-between; gap: 20px; padding: 24px 24px 14px; }
.command-head h2 { margin-top: 3px; color: var(--cobalt-deep); font: 760 1.55rem/1.15 var(--font-display); }
.command-input-wrap { display: grid; grid-template-columns: auto minmax(0,1fr) auto; align-items: center; gap: 11px; margin: 0 20px 10px; padding: 0 13px; border: 2px solid var(--cobalt); border-radius: 15px; background: var(--panel); box-shadow: 0 0 0 4px color-mix(in srgb,var(--cobalt),transparent 90%); }
.command-input-wrap > span { color: var(--cobalt); font-size: 1.35rem; }
.command-input-wrap input { width: 100%; height: 50px; padding: 0; border: 0; outline: 0; color: var(--ink); background: transparent; }
.command-results { min-height: 210px; overflow-y: auto; padding: 6px 12px 12px; }
.command-result { width: 100%; display: grid; grid-template-columns: 42px minmax(0,1fr) auto; align-items: center; gap: 12px; padding: 11px 12px; border: 0; border-radius: 13px; color: var(--ink); background: transparent; text-align: left; cursor: pointer; }
.command-result:hover,.command-result.active { background: var(--soft); }
.command-result.active { box-shadow: inset 3px 0 0 var(--cobalt); }
.command-icon { width: 40px; height: 40px; display: grid; place-items: center; border: 1px solid var(--line); border-radius: 12px; color: var(--cobalt); background: var(--panel); font-weight: 850; }
.command-result b,.command-result small { display: block; }
.command-result b { color: var(--cobalt-deep); font-size: .9rem; }
.command-result small { margin-top: 2px; color: var(--muted); font-size: .72rem; }
.command-empty { display: grid; place-items: center; padding: 38px 20px; color: var(--muted); text-align: center; }
.command-empty > span { margin-bottom: 8px; color: var(--line-strong); font-size: 2.4rem; }
.command-empty b { color: var(--ink); }
.command-empty p { margin-top: 4px; font-size: .8rem; }
.command-foot { display: flex; gap: 18px; padding: 10px 22px; border-top: 1px solid var(--line); color: var(--muted); background: var(--soft-2); font-size: .66rem; }

/* Dialogs and notifications */
.authoverlay { position: fixed; inset: 0; z-index: 100; display: grid; place-items: center; padding: 20px; background: rgba(8,22,25,.66); backdrop-filter: blur(9px); }
.authcard { width: min(440px,100%); max-height: calc(100vh - 40px); overflow-y: auto; padding: 28px; border: 1px solid var(--line); border-radius: 24px; background: var(--panel-raised); box-shadow: var(--shadow-float); animation: modal-in .22s ease both; }
.authcard-dismissible { position: relative; }
.auth-close { position: absolute; top: 14px; right: 14px; }
@keyframes modal-in { from { opacity: 0; transform: translateY(12px) scale(.98); } }
.authcard h2 { margin-bottom: 15px; color: var(--cobalt-deep); font: 760 1.55rem/1.15 var(--font-display); }
.authcard input { margin-bottom: 11px; }
.authcard > .btn { width: 100%; margin-bottom: 8px; }
.autherr { min-height: 21px; margin-bottom: 7px; color: var(--coral-deep); font-size: .8rem; }
.endstat { color: var(--coral); font: 800 2.8rem/1 var(--font-display); }
#xpToast { position: fixed; left: 50%; bottom: 24px; z-index: 200; padding: 9px 17px; border-radius: 999px; color: #fff; background: var(--cobalt-deep); box-shadow: var(--shadow-float); font-weight: 850; opacity: 0; pointer-events: none; transform: translate(-50%,12px); transition: opacity .2s ease,transform .2s ease; }
#xpToast.show { opacity: 1; transform: translate(-50%,0); }
.network-status { position: fixed; left: 18px; bottom: 18px; z-index: 190; padding: 10px 14px; border: 1px solid color-mix(in srgb,var(--amber),transparent 45%); border-radius: 13px; color: var(--ink); background: color-mix(in srgb,var(--panel-raised),var(--amber) 9%); box-shadow: var(--shadow); font-size: .76rem; font-weight: 800; }
.back-top { position: fixed; right: 20px; bottom: 20px; z-index: 80; min-height: 44px; display: inline-flex; align-items: center; gap: 7px; padding: 0 13px; border: 1px solid var(--line); border-radius: 13px; color: var(--cobalt-deep); background: color-mix(in srgb,var(--panel) 92%,transparent); box-shadow: var(--shadow); backdrop-filter: blur(12px); font-size: .75rem; font-weight: 850; cursor: pointer; opacity: 0; pointer-events: none; transform: translateY(10px); transition: opacity .18s ease,transform .18s ease; }
.back-top.show { opacity: 1; pointer-events: auto; transform: translateY(0); }
.back-top > span:first-child { font-size: 1.05rem; }
.mobile-utility-btn,.mobile-utility-menu { display: none; }
#appUpdate { position: fixed; right: 18px; bottom: 18px; z-index: 300; max-width: 400px; display: flex; align-items: center; gap: 15px; padding: 13px 15px; border: 1px solid var(--line); border-radius: 16px; color: var(--ink); background: var(--panel-raised); box-shadow: var(--shadow-float); }
#appUpdate[data-update-state="applying"] { border-color: var(--teal); }
#appUpdate[data-update-state="failed"] { border-color: var(--coral); }

footer { padding: 30px 20px 42px; text-align: center; }
footer .muted { font-size: .75rem; letter-spacing: .04em; }
.footer-links { margin-bottom: 8px; }
.footer-links a { color: var(--cobalt); }
.auth-intro { margin-bottom: 14px; }
.forgot-row { margin-top: 6px; text-align: center; }
.forgot-row a { color: var(--turquoise); font-size: .84rem; }

/* Public article pages */
body > header:not(.app-header) { padding: 30px 20px 25px; }
body > header:not(.app-header) h1 { font-size: 1.8rem; }
body > main[style] { width: min(860px,100%) !important; max-width: 860px !important; }
article.card { padding: clamp(24px,5vw,42px); }
article.card > h1 { margin-bottom: 13px; }
article.card ul { color: var(--ink-2); }
article.card li { margin-bottom: 7px; }
.public-lang { display: flex; justify-content: flex-end; gap: 6px; margin: 0 0 12px; }
.public-lang a,.public-lang b { min-width: 78px; padding: 7px 12px; border: 1px solid var(--line); border-radius: 999px; text-align: center; text-decoration: none; font-size: .78rem; }
.public-lang b { color: #fff; border-color: var(--cobalt); background: var(--cobalt); }
.public-title { margin: 5px 0 8px; color: var(--cobalt-deep); font-size: clamp(1.65rem,4vw,2.25rem); }
.public-lesson-list { display: grid; gap: 9px; margin-top: 23px; }
.public-lesson-list details { border: 1px solid var(--line); border-radius: 14px; background: var(--soft-2); overflow: hidden; }
.public-lesson-list summary { display: flex; align-items: center; gap: 11px; padding: 14px 16px; color: var(--cobalt-deep); font-weight: 780; cursor: pointer; }
.public-lesson-list summary span { width: 30px; height: 30px; flex: 0 0 30px; display: grid; place-items: center; border-radius: 9px; color: #fff; background: var(--cobalt); font-size: .76rem; }
.public-lesson-list details > div { padding: 0 17px 17px 57px; color: var(--ink-2); }
.public-lesson-list .ex { margin-top: 10px; padding: 11px 13px; border-left: 4px solid var(--coral); border-radius: 0 10px 10px 0; background: var(--panel); }
.public-cta { margin-top: 24px; padding: 22px; border-radius: 17px; color: #fff; background: linear-gradient(135deg,#0e756d,#15545a); text-align: center; }
.public-cta h2 { margin: 0 0 5px; color: #fff; }
.public-cta p { margin-bottom: 14px; color: rgba(255,255,255,.82); }
.public-cta .btn { text-decoration: none; }

@media (min-width: 821px) {
  header { position: sticky; top: 0; z-index: 45; }
  nav {
    position: fixed; top: 94px; bottom: 0; left: 0; width: 220px; height: auto;
    align-items: stretch; justify-content: flex-start; flex-direction: column;
    gap: 6px; padding: 22px 14px; border-right: 1px solid var(--line); border-bottom: 0;
  }
  nav button { width: 100%; min-width: 0; justify-content: flex-start; }
  nav button.active::after { top: 11px; bottom: 11px; left: -14px; right: auto; width: 3px; height: auto; border-radius: 0 4px 4px 0; }
  nav .desktop-account-nav { margin-top: auto; }
  main { width: auto; max-width: 1120px; margin-left: 240px; margin-right: 20px; }
}

@media (max-width: 820px) {
  nav .desktop-account-nav { display: none; }
  .header-status { display: none; }
  .commandbtn { min-width: 44px; width: 44px; padding: 0; justify-content: center; }
  .commandbtn .command-label,.commandbtn kbd { display: none; }
  .dashboard-grid { grid-template-columns: 1fr; }
  .dashboard-grid .span-2 { grid-column: auto; }
  .profile-layout { grid-template-columns: 1fr; }
  .profile-settings-card { position: static; }
  .statgrid { grid-template-columns: repeat(2,1fr); }
  .progress-summary { grid-template-columns: 1fr; align-items: start; }
  .progress-summary-actions { justify-content: flex-start; }
  .word-card, .expression-card, .mistake-card { grid-column: 1 / -1; min-height: 0; }
  .practice-grid { grid-template-columns: repeat(2,minmax(0,1fr)); }
  .practice-category-grid { grid-template-columns: 1fr; }
}

@media (max-width: 640px) {
  :root { --nav-height: 72px; }
  .progress-summary-metrics { grid-template-columns: repeat(2,minmax(0,1fr)); }
  .progress-summary-actions .btn { flex: 1; }
  body { font-size: 15px; padding-bottom: 86px; }
  .app-header { min-height: 78px; padding: 13px 16px; }
  .brand-lockup { gap: 10px; }
  .brand-mark { width: 42px; height: 42px; flex-basis: 42px; border-radius: 13px; font-size: 22px; }
  header h1 { font-size: 1.4rem; }
  header .sub { font-size: .61rem; }
  .brand-lockup { gap: 10px; }
  .header-actions { gap: 5px; }
  .themebtn,.profilebtn { width: 42px; height: 42px; flex-basis: 42px; }
  .helpbtn { display: none; }
  .modebtn { min-width: 82px; height: 42px; padding: 0 9px; font-size: .68rem; }
  .commandbtn { width: 42px; min-width: 42px; height: 42px; }
  nav { position: fixed; top: auto; bottom: 0; left: 0; right: 0; height: 72px; gap: 0; padding: 6px 6px max(6px,env(safe-area-inset-bottom)); border-top: 1px solid var(--line); border-bottom: 0; }
  nav button { min-width: 0; height: 58px; flex: 1 1 0; flex-direction: column; gap: 3px; padding: 4px; border-radius: 12px; font-size: .66rem; }
  nav button.active::after { left: 28%; right: 28%; top: -6px; bottom: auto; height: 3px; border-radius: 0 0 4px 4px; }
  .ni { width: 22px; height: 22px; }
  .navcount { top: 1px; right: calc(50% - 28px); }
  #sessionBar { top: 0; padding: 9px 12px; }
  main { padding: 24px 13px 46px; }
  .card { padding: 20px; border-radius: 16px; }
  .sectionintro { margin-bottom: 22px; }
  .sectionintro h2 { font-size: clamp(1.65rem,8vw,2.05rem); }
  .today-hero { padding: 25px 17px; border-radius: 21px; }
  .today-hero .rowflex { flex-direction: column; }
  .today-hero .btn { width: 100%; }
  .daily-plan-controls { grid-template-columns: 1fr; }
  .daily-plan-choice { flex-wrap: nowrap; overflow-x: auto; }
  .daily-plan-choice button { flex: 0 0 auto; }
  .daily-plan-list { grid-template-columns: 1fr; }
  .today-resume { align-items: stretch; flex-direction: column; }
  .today-resume .btn { width: 100%; }
  .levelrow { align-items: flex-start; flex-direction: column; gap: 4px; }
  .matchgrid { grid-template-columns: 1fr; }
  .pathnodes { grid-template-columns: 1fr; }
  .vocabrow { grid-template-columns: 1fr; gap: 1px; padding: 12px 2px; }
  .vocabrow > span:last-child { justify-content: flex-start; padding-left: 44px; text-align: left; }
  .setrow { align-items: flex-start; flex-direction: column; gap: 9px; }
  .setrow select, .setrow .btn { width: 100%; }
  .backuprow .btn { width: 100%; }
  .authcard { padding: 23px 19px; border-radius: 20px; }
  .learn-recommendation { align-items: stretch; flex-direction: column; }
  .learn-recommendation .btn { width: 100%; }
  .beginner-track,.learn-category-grid,.learn-quick-links,.lesson-library-grid { grid-template-columns: 1fr; }
  .lesson-recommendation { align-items: stretch; flex-direction: column; }
  .lesson-recommendation .btn { width: 100%; }
  .course-destinations { grid-template-columns: 1fr; }
  .course-grid,.unit-word-grid { grid-template-columns: 1fr; }
  .course-unit { grid-template-columns: 42px minmax(0,1fr) auto; padding: 13px; }
  .course-icon { width: 40px; height: 40px; }
  .course-hero { grid-template-columns: 58px minmax(0,1fr); }
  .course-hero-icon { width: 56px; height: 56px; border-radius: 17px; font-size: 1.55rem; }
  .course-ring { grid-column: 1 / -1; width: 100%; height: 9px; border: 0; border-radius: 999px; color: var(--muted); background: var(--soft); font-size: .72rem; }
  .unit-checks { grid-template-columns: 1fr; }
  .unit-actions .btn,.unit-actions .feedback { width: 100%; }
  .unit-word { grid-template-columns: 30px minmax(0,1fr) minmax(0,1fr); }
  .practice-grid,.scenario-grid { grid-template-columns: 1fr; }
  .practice-card { min-height: 0; }
  .coach-note { grid-template-columns: 46px minmax(0,1fr); }
  .coach-note > .btn { grid-column: 1 / -1; width: 100%; }
  .weekly-layout { grid-template-columns: 74px minmax(0,1fr); gap: 13px; }
  .weekly-ring { width: 72px; height: 72px; }
  .mixed-card { max-height: calc(100vh - 20px); }
  .mixed-prompt { min-height: 90px; font-size: 1.3rem; }
  .chat-scene { padding: 17px; }
  .chat-bubble { max-width: 84%; }
  .writing-prompt { grid-template-columns: 46px minmax(0,1fr); padding: 14px; }
  .auto-view-intro { align-items: flex-start; flex-direction: column; gap: 7px; padding-bottom: 15px; }
  .auto-view-intro .view-shortcut { display: none; }
  .command-card { max-height: calc(100vh - 20px); border-radius: 20px; }
  .command-head { padding: 19px 17px 12px; }
  .command-head h2 { font-size: 1.28rem; }
  .command-input-wrap { margin: 0 12px 7px; }
  .command-results { padding-left: 6px; padding-right: 6px; }
  .command-foot { display: none; }
  #xpToast { bottom: 88px; }
  .network-status { left: 10px; bottom: 82px; }
  .back-top { right: 10px; bottom: 82px; width: 44px; padding: 0; justify-content: center; }
  .back-top-label { display: none; }
  #appUpdate { left: 10px; right: 10px; bottom: 84px; justify-content: space-between; }
  footer { padding-bottom: 26px; }
  .public-lesson-list details > div { padding-left: 17px; }
}

@media (max-width: 420px) {
  .brand-copy .sub { display: none; }
  header h1 { font-size: 1.16rem; }
  .modebtn { min-width: 74px; padding: 0 8px; }
  .modebtn::before { display: none; }
  .brand-mark { display: none; }
}

@media (max-width: 360px) {
  .app-header { padding-left: 10px; padding-right: 10px; }
  .brand-copy { display: none; }
  .brand-mark { width: 36px; height: 36px; display: grid; flex-basis: 36px; border-radius: 11px; font-size: 19px; }
  .header-actions { gap: 3px; }
  .commandbtn,.themebtn,.profilebtn { width: 44px; min-width: 44px; height: 44px; flex-basis: 44px; }
  .modebtn { min-width: 68px; height: 44px; padding: 0 6px; font-size: .64rem; }
}

html[data-platform="android"] .app-header {
  padding-top: max(17px, calc(17px + env(safe-area-inset-top)));
}
html[data-platform="android"] nav {
  padding-bottom: max(10px, calc(10px + env(safe-area-inset-bottom)));
}
html[data-platform="android"] main { min-width: 0; }

@media (max-width: 640px) {
  html[data-platform="android"] .app-header {
    padding-top: max(13px, calc(13px + env(safe-area-inset-top)));
  }
  html[data-platform="android"] nav {
    padding-bottom: max(6px, calc(6px + env(safe-area-inset-bottom)));
  }
}

@media (max-height: 520px) and (orientation: landscape) {
  html[data-platform="android"] main { padding-top: 16px; padding-bottom: 28px; }
  html[data-platform="android"] .app-header { min-height: 64px; }
  html[data-platform="android"] nav { min-height: 60px; }
  html[data-platform="android"] .authcard { max-height: calc(100dvh - 12px); overflow-y: auto; }
}

@media (max-width: 390px) {
  .brand-copy .sub { display: none; }
  .statgrid { grid-template-columns: 1fr 1fr; gap: 8px; }
  .stat { padding: 13px 7px; }
  .stat .num { font-size: 1.65rem; }
  .btn { padding-left: 14px; padding-right: 14px; }
}

/* One-step resumable onboarding */
.authoverlay[data-onboarding-open="true"] { background: var(--ground); backdrop-filter: none; }
.onboarding-card {
  width: min(560px,100%);
  max-height: min(760px,calc(100dvh - 40px));
  overflow-y: auto;
  padding: clamp(24px,5vw,36px);
}
.onboarding-card > p:not(.onboarding-steps):not(.onboarding-label) { color: var(--ink-2); }
.onboarding-steps {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  margin: -5px 0 14px;
  padding: 4px 10px;
  border-radius: 999px;
  color: var(--cobalt-deep);
  background: var(--soft);
  font-size: .74rem;
  font-weight: 850;
  letter-spacing: .04em;
}
.onboarding-options { display: grid; gap: 12px; margin: 0 0 10px; }
.onboarding-choice, .onboarding-options button {
  position: relative;
  display: flex;
  align-items: center;
  gap: 10px;
  min-height: 72px;
  padding: 16px;
  border: 2px solid var(--line);
  border-radius: 15px;
  color: var(--ink);
  background: var(--panel);
  text-align: left;
  font-weight: 800;
  cursor: pointer;
}
.onboarding-choice:hover, .onboarding-options button:hover { color: var(--cobalt-deep); border-color: var(--cobalt); background: var(--soft); }
.onboarding-choice.active, .onboarding-options button.active { color: var(--cobalt-deep); border-color: var(--cobalt); background: var(--soft); }
.onboarding-selection-marker { display: inline-grid; place-items: center; width: 24px; height: 24px; flex: 0 0 24px; border-radius: 50%; color: #fff; background: var(--cobalt); font-size: .8rem; font-weight: 900; }
.onboarding-choice.active .onboarding-selection-marker { box-shadow: 0 0 0 3px color-mix(in srgb,var(--cobalt),transparent 78%); }
.onboarding-choice-copy { display: grid; gap: 3px; min-width: 0; }
.onboarding-choice-copy strong { font: inherit; }
.onboarding-choice-copy small { color: var(--muted); font-size: .78rem; font-weight: 650; line-height: 1.35; }
.onboarding-primary { width: 100%; min-height: 48px; }
.onboarding-actions {
  display: grid;
  gap: 10px;
  margin-top: 14px;
}
.onboarding-actions .btn {
  width: 100%;
  min-height: 48px;
}
.onboarding-error { margin: 0 0 2px; color: var(--coral-deep); font-size: .82rem; font-weight: 750; }
.first-lesson-intro { width: min(560px,100%); text-align: center; }
.activation-card p { margin-bottom: 18px; color: var(--ink-2); }
@media (max-width: 479px) {
  .helpbtn,.themebtn { display: none; }
  .mobile-utility-btn { display: inline-grid; place-items: center; width: 44px; height: 44px; border: 1px solid var(--line); border-radius: 12px; background: var(--panel); color: var(--ink); font-weight: 900; }
  .mobile-utility-menu { display: grid; position: fixed; z-index: 200; top: 64px; right: 12px; min-width: 150px; padding: 6px; border: 1px solid var(--line); border-radius: 14px; background: var(--panel-raised); box-shadow: var(--shadow-float); }
  .mobile-utility-menu.hidden { display: none; }
  .mobile-utility-menu button { min-height: 44px; border: 0; border-radius: 9px; background: transparent; color: var(--ink); text-align: left; padding: 0 12px; }
  .authoverlay[data-onboarding-open="true"] { padding: 0; }
  .onboarding-card {
    width: 100%;
    min-height: 100dvh;
    max-height: none;
    padding: max(24px,calc(24px + env(safe-area-inset-top))) max(18px,calc(18px + env(safe-area-inset-right))) max(24px,calc(24px + env(safe-area-inset-bottom))) max(18px,calc(18px + env(safe-area-inset-left)));
    border-radius: 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; scroll-behavior: auto !important; }
  .placement-shell,
  .placement-stage,
  .placement-question,
  .placement-result {
    animation: none !important;
    transition: none !important;
  }
}