/* Grikoç app, on the "Gri Koç Navigasyon" design system (tokens below are its light theme).
   Rules followed: one yellow (brand) for the primary action only; cards have no border or shadow, they are
   separated by surface tone; the coach speaks on the dark coach surface; the level color appears only on
   progress (ring, bars, badge, watch line); Montserrat 400/500 for text and headings, 800 only for numbers and one-word emphasis (as on the original platform);
   spacing 4·8·12·16·20·24·40·48; radius 12 (md) · 16 (lg) · 24 (xl) · pill. */

:root {
  --surface: #f6f6f6; --surface-raised: #ffffff; --surface-sunken: #e7e7e7;
  --ink: #282828; --ink-muted: #5d5d5d; --border: #e7e7e7;
  --brand: #ffd200; --on-brand: #282828; --coach-surface: #282828; --on-coach: #ffffff;
  --danger: #b8293f; --success: #11776a; --danger-surface: #fbeaed; --success-surface: #e3f2ef;
  --gold-100: #ffffc1; --gray-200: #d1d1d1; --gray-300: #b0b0b0; --gray-400: #888888; --gray-900: #3d3d3d;
  --level-pink: #ed79a2; --level-green: #75b843; --level-orange: #f58c03; --level-blue: #559ed7; --level-purple: #b919e0; --level-red: #e91c19;
  --level-accent: var(--brand); --on-level: var(--ink);
  --font: Montserrat, system-ui, sans-serif;
  --r-md: 12px; --r-lg: 16px; --r-xl: 24px; --r-pill: 9999px;
  --column: 800px;
}
/* Registered as a color so a level change can fade from the old color to the new one (exams.js applyLevel). */
@property --level-accent { syntax: "<color>"; inherits: true; initial-value: #ffd200; }
body.level-shift { transition: --level-accent 1s ease; }
@media (prefers-reduced-motion: reduce) { body.level-shift { transition: none; } }
body[data-level="pink"]   { --level-accent: var(--level-pink); }
body[data-level="green"]  { --level-accent: var(--level-green); }
body[data-level="orange"] { --level-accent: var(--level-orange); }
body[data-level="blue"]   { --level-accent: var(--level-blue); }
body[data-level="purple"] { --level-accent: var(--level-purple); --on-level: #ffffff; }
body[data-level="red"]    { --level-accent: var(--level-red); --on-level: #ffffff; }

*, *::before, *::after { box-sizing: border-box; }
html, body { margin: 0; min-height: 100%; }
body { font: 400 16px/1.5 var(--font); color: var(--ink); background: var(--surface); -webkit-font-smoothing: antialiased; }
h1, h2, h3, p, ul, ol { margin: 0; padding: 0; }
ul, ol { list-style: none; }
img { display: block; max-width: 100%; }
a { color: var(--ink); }
button, textarea, input { font: inherit; color: inherit; }
button { cursor: pointer; }
[hidden] { display: none !important; }
:focus-visible { outline: 2px solid var(--ink); outline-offset: 2px; }
.coach-bar :focus-visible, .note :focus-visible { outline-color: var(--on-coach); }

.label { font: 500 12px/18px var(--font); letter-spacing: 1.2px; text-transform: uppercase; color: var(--ink-muted); }
.muted { font: 500 14px/21px var(--font); color: var(--ink-muted); }
.display { font: 400 40px/48px var(--font); letter-spacing: -0.01em; margin-top: 4px; }
.display b { font-weight: 800; }
.h1 { font: 500 32px/40px var(--font); letter-spacing: -0.01em; }
.h2 { font: 500 18px/24px var(--font); }
.num { font-variant-numeric: tabular-nums; }
.grow { flex: 1; }

.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; min-height: 44px; padding: 10px 20px; border: 0; border-radius: var(--r-pill); font: 500 14px/20px var(--font); text-decoration: none; white-space: nowrap; }
.btn:disabled { opacity: .5; cursor: default; }
.btn-brand { background: var(--brand); color: var(--on-brand); }
.btn-outline { background: var(--surface-raised); box-shadow: inset 0 0 0 1px var(--border); }
.btn-ghost { background: var(--gray-900); color: var(--on-coach); }
.btn-brand { font-weight: 800; }
.pill { display: inline-flex; align-items: center; gap: 8px; min-height: 40px; padding: 10px 16px; border: 0; border-radius: var(--r-pill); background: var(--surface-raised); font: 500 14px/20px var(--font); text-decoration: none; }
.pill.outline { box-shadow: inset 0 0 0 1px var(--border); }
.pill.back { padding-left: 12px; }
.link { background: none; border: 0; padding: 0; font: 500 14px/20px var(--font); text-decoration: underline; color: var(--ink); }
.chip { padding: 9px 16px; border: 0; border-radius: var(--r-pill); background: var(--surface-raised); box-shadow: inset 0 0 0 1px var(--border); font: 500 13px/18px var(--font); text-decoration: none; }
.chip:hover { box-shadow: inset 0 0 0 1px var(--gray-400); }
.chips { display: flex; flex-wrap: wrap; gap: 8px; }
.card { background: var(--surface-raised); border-radius: var(--r-xl); padding: 24px; display: flex; flex-direction: column; gap: 16px; min-width: 0; }
.card.tight { border-radius: var(--r-lg); padding: 16px; }
.stack { display: flex; flex-direction: column; gap: 12px; min-width: 0; }
.row { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
.row.base { align-items: baseline; }
.delta { font: 500 12px/18px var(--font); padding: 4px 10px; border-radius: var(--r-pill); background: var(--surface); color: var(--ink-muted); }
.delta.up { color: var(--success); background: var(--success-surface); }
.delta.down { color: var(--danger); background: var(--danger-surface); }
.big { font: 800 36px/43px var(--font); letter-spacing: -0.025em; }
.mid { font: 800 28px/34px var(--font); letter-spacing: -0.02em; }
.unit { font: 500 16px/24px var(--font); }
.error { color: var(--danger); }
.empty { color: var(--ink-muted); font-size: 14px; }

/* Placeholders while a screen reads its data (core.js skel): the size of what comes, a slow sheen across. */
.sk { display: block; flex: none; min-width: 0; border-radius: var(--r-lg); background: var(--surface-raised) linear-gradient(100deg, transparent 30%, rgb(0 0 0 / .035) 50%, transparent 70%) 0 0 / 300% 100%; animation: sk-sheen 1.6s linear infinite; }
.sk.in, .card .sk, .notify .sk, dialog .sk { background-color: var(--surface); }
.sk.dark { background-color: var(--coach-surface); }
.sk.xl { border-radius: var(--r-xl); }
.sk-box { display: flex; flex-direction: column; gap: 12px; min-width: 0; }
@keyframes sk-sheen { from { background-position: 100% 0; } to { background-position: -100% 0; } }
@media (prefers-reduced-motion: reduce) { .sk { animation: none; } }

/* Login */
.login { min-height: 100dvh; display: grid; place-items: center; padding: 16px; }
.login-card { width: min(420px, 100%); display: grid; gap: 16px; padding: 40px 24px 24px; background: var(--surface-raised); border-radius: var(--r-xl); }
.login-card h1 { font: 400 32px/40px var(--font); letter-spacing: -0.01em; }
.login-card label { display: grid; gap: 4px; font: 400 13px/18px var(--font); color: var(--ink-muted); }
.login-card input { min-height: 48px; padding: 8px 16px; border: 0; border-radius: var(--r-md); background: var(--surface); font: 500 16px/24px var(--font); color: var(--ink); letter-spacing: 0; text-transform: none; }
.form-error { color: var(--danger); font-size: 14px; }

/* Header */
.app { min-height: 100dvh; display: flex; flex-direction: column; }
.top { position: sticky; top: 0; z-index: 5; display: flex; flex-wrap: wrap; align-items: center; gap: 12px; padding: 16px 40px; background: var(--surface); }
.logo img { height: 34px; width: auto; }
.top-nav { display: flex; gap: 4px; margin-left: 8px; }
.top-nav a { display: inline-flex; align-items: center; gap: 8px; padding: 10px 16px; border-radius: var(--r-pill); font: 500 14px/20px var(--font); text-decoration: none; color: var(--ink-muted); }
.top-nav a svg { flex: none; }
.top-nav a:hover { color: var(--ink); }
.top-nav a.is-active { background: var(--surface-raised); color: var(--ink); }
.level-badge { display: inline-flex; align-items: center; gap: 8px; padding: 8px 14px; border-radius: var(--r-pill); background: var(--level-accent); color: var(--on-level); font: 500 12px/18px var(--font); letter-spacing: 1.2px; text-transform: uppercase; }
.level-badge::before { content: ""; width: 8px; height: 8px; border-radius: 50%; background: currentColor; }
.avatar { width: 44px; height: 44px; border: 0; border-radius: 50%; background: var(--surface-sunken); color: var(--ink); font: 500 15px/1 var(--font); }
.ask { display: inline-flex; align-items: center; gap: 10px; min-height: 44px; min-width: 220px; padding: 0 20px 0 8px; border: 0; border-radius: var(--r-pill); background: var(--coach-surface); color: var(--gray-300); font: 500 14px/20px var(--font); text-align: left; }
.ask span { flex: none; width: 30px; height: 30px; border-radius: 50%; background: var(--gray-900); display: grid; place-items: center; }
.ask.is-active, .ask[aria-expanded="true"] { color: var(--on-coach); }
.ask:focus-visible { outline-offset: 2px; }
.menu { position: absolute; right: 40px; top: 68px; z-index: 10; display: grid; gap: 4px; min-width: 200px; padding: 12px; border-radius: var(--r-lg); background: var(--surface-raised); box-shadow: inset 0 0 0 1px var(--border), 0 10px 30px rgb(40 40 40 / .12); }
.menu strong { padding: 4px 8px 8px; font: 500 14px/20px var(--font); }
.menu a { padding: 10px 8px; border-radius: var(--r-md); font: 500 14px/20px var(--font); text-decoration: none; }
.menu a:hover { background: var(--surface); }
.menu hr { width: 100%; height: 1px; margin: 4px 0; border: 0; background: var(--border); }
.menu button { text-align: left; padding: 10px 8px; border: 0; border-radius: var(--r-md); background: none; font: 500 14px/20px var(--font); }
.menu button:hover { background: var(--surface); }

/* Views */
.view { width: 100%; max-width: 1360px; margin: 0 auto; padding: 16px 40px 64px; display: flex; flex-direction: column; gap: 24px; }
.view-head { display: flex; align-items: flex-end; justify-content: space-between; gap: 16px; flex-wrap: wrap; }
.trio { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 0; padding: 8px; border-radius: var(--r-xl); background: var(--surface-raised); }
.trio > .card { padding: 16px 20px; gap: 6px; border-radius: 0; background: none; }
.trio > .card + .card { border-left: 1px solid var(--border); }
.duo { display: grid; grid-template-columns: minmax(0, 3fr) minmax(0, 2fr); gap: 24px; align-items: start; }
.weeks { display: grid; grid-template-columns: repeat(19, minmax(0, 1fr)); gap: 4px; }
.weeks span { aspect-ratio: 1; border-radius: 50%; }
.ring-card { flex-direction: row; align-items: center; gap: 24px; }
.bars { display: flex; gap: 6px; align-items: flex-end; height: 40px; }
.bars span { flex: 1; min-height: 4px; border-radius: 4px; background: var(--surface-sunken); }
.bars span.is-last { background: var(--level-accent); }
a.card { text-decoration: none; color: var(--ink); }

.plan { display: flex; align-items: center; gap: 12px; padding: 14px 16px; border-radius: var(--r-lg); background: var(--surface-raised); }
.plan .box { flex: none; width: 22px; height: 22px; border-radius: 6px; box-shadow: inset 0 0 0 2px var(--gray-400); display: grid; place-items: center; color: var(--on-coach); }
.plan.is-done .box { background: var(--ink); box-shadow: none; }
.plan .box svg { display: none; }
button.box { position: relative; padding: 0; border: 0; background: none; cursor: pointer; }
button.box::after { content: ""; position: absolute; inset: -11px; }
button.box:hover { box-shadow: inset 0 0 0 2px var(--ink); }
button.box:disabled { opacity: .5; cursor: default; }
.plan.is-done .box svg { display: block; }
.plan-text { flex: 1; min-width: 0; display: flex; flex-direction: column; }
.plan-title { font: 500 15px/22px var(--font); }
.plan.is-done .plan-title { text-decoration: line-through; color: var(--ink-muted); }
.plan-detail { font: 500 13px/20px var(--font); color: var(--ink-muted); }
.tag { flex: none; padding: 2px 10px; border-radius: var(--r-pill); background: var(--surface); font: 500 12px/18px var(--font); }

.note { background: var(--coach-surface); color: var(--on-coach); border-radius: var(--r-xl); padding: 24px; display: flex; flex-direction: column; gap: 12px; }
.note-who { display: inline-flex; align-items: center; gap: 8px; font: 500 12px/18px var(--font); letter-spacing: 1.2px; text-transform: uppercase; color: var(--gray-300); }
.note-who span { width: 24px; height: 24px; border-radius: 50%; background: var(--gray-900); display: grid; place-items: center; }
.note p { font: 500 18px/27px var(--font); }
.note b { color: var(--brand); font-weight: 800; }
.note .chip { background: var(--gray-900); color: var(--on-coach); box-shadow: none; }
.note .chip:hover { box-shadow: inset 0 0 0 1px var(--gray-400); }
.resume { display: flex; gap: 14px; align-items: center; padding: 12px; border-radius: var(--r-lg); background: var(--surface-raised); text-decoration: none; }
.thumb { position: relative; flex: none; width: 128px; aspect-ratio: 16 / 9; border-radius: var(--r-md); overflow: hidden; background: var(--coach-surface) center / cover; }
.thumb i { position: absolute; left: 0; bottom: 0; height: 4px; background: var(--level-accent); }

/* Coach bar: docked on the chat screen; on the other screens it opens from the header's "Koça sor" pill. */
body:not(.is-chat):not(.coach-open) .coach { display: none; }
.coach { position: fixed; left: 50%; bottom: 24px; transform: translateX(-50%); z-index: 6; width: 760px; max-width: calc(100% - 32px); display: flex; flex-direction: column; gap: 10px; align-items: center; }
.coach .chips { justify-content: center; }
.coach-bar { width: 100%; display: flex; align-items: center; gap: 12px; background: var(--coach-surface); color: var(--on-coach); border-radius: 30px; padding: 8px 8px 8px 12px; box-shadow: 0 10px 30px rgb(40 40 40 / .18); }
.coach-ico { flex: none; width: 44px; height: 44px; border-radius: 50%; background: var(--gray-900); display: grid; place-items: center; }
.coach-bar textarea { flex: 1; min-width: 0; border: 0; outline: 0; resize: none; background: transparent; color: var(--on-coach); font: 500 16px/24px var(--font); max-height: 144px; padding: 10px 0; }
.coach-bar textarea::placeholder { color: var(--gray-300); }
.round { flex: none; width: 48px; height: 48px; border: 0; border-radius: 50%; background: var(--gray-900); color: var(--on-coach); display: grid; place-items: center; }
.round.send { background: var(--brand); color: var(--on-brand); }
.round:disabled { opacity: .5; cursor: default; }
.round[aria-pressed="true"] { background: var(--danger); animation: pulse 1.2s infinite; }
.rec-time { font: 500 13px/18px var(--font); color: var(--gray-300); font-variant-numeric: tabular-nums; }
@keyframes pulse { 50% { opacity: .55; } }
@media (prefers-reduced-motion: reduce) { .round[aria-pressed="true"], .step.is-running::before { animation: none; } }

/* Chat */
.view.chat { max-width: var(--column); padding: 16px 24px 200px; gap: 20px; }
body.coach-open .view { padding-bottom: 200px; }
.thread { display: flex; flex-direction: column; gap: 20px; }
.hello { margin: 12vh 0 0; display: grid; gap: 12px; }
.me { align-self: flex-end; max-width: 85%; padding: 12px 16px; border-radius: var(--r-lg) var(--r-lg) 4px var(--r-lg); background: var(--gold-100); font: 500 15px/23px var(--font); white-space: pre-wrap; overflow-wrap: anywhere; }
.turn { display: flex; flex-direction: column; gap: 12px; }
.coach-msg { display: grid; grid-template-columns: 36px minmax(0, 1fr); gap: 12px; align-items: start; }
.coach-av { width: 36px; height: 36px; border-radius: 50%; background: var(--coach-surface); display: grid; place-items: center; }
.bubble { background: var(--surface-raised); border-radius: 4px var(--r-lg) var(--r-lg) var(--r-lg); padding: 14px 18px; font: 400 15px/23px var(--font); overflow-wrap: anywhere; }
.bubble p + p, .bubble ul + p, .bubble ol + p, .bubble p + ul, .bubble p + ol { margin-top: 10px; }
.bubble ul, .bubble ol { padding-left: 22px; display: grid; gap: 6px; }
.bubble ul { list-style: disc; }
.bubble ol { list-style: decimal; }
.bubble strong { font-weight: 800; background: linear-gradient(transparent 58%, rgb(255 210 0 / .45) 58%); }
.cite { margin: 0 2px; padding: 0 7px; border: 0; border-radius: var(--r-pill); background: var(--surface); font: 500 11px/18px var(--font); vertical-align: 1px; }
.steps { display: flex; flex-wrap: wrap; gap: 6px; padding-left: 48px; }
.step { display: inline-flex; align-items: center; gap: 6px; font: 500 12px/18px var(--font); color: var(--ink-muted); }
.step::before { content: ""; width: 16px; height: 16px; border-radius: 50%; background: var(--success-surface) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Cpath d='M4.5 8.5l2.3 2.2 4.7-5' fill='none' stroke='%2311776a' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") center / 12px no-repeat; }
.step.is-running::before { background: var(--brand); animation: pulse 1s infinite; }
.step + .step { margin-left: 8px; }
.extras { display: flex; flex-direction: column; gap: 12px; padding-left: 48px; }
.videos { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 16px; }
.vcard { display: flex; flex-direction: column; gap: 10px; padding: 10px; border-radius: var(--r-lg); background: var(--surface-raised); text-decoration: none; }
.vthumb { position: relative; aspect-ratio: 16 / 9; border-radius: var(--r-md); overflow: hidden; background: var(--coach-surface) center / cover; }
.vthumb .play { position: absolute; left: 50%; top: 50%; width: 40px; height: 40px; margin: -20px 0 0 -20px; border-radius: 50%; background: var(--brand); display: grid; place-items: center; }
.vthumb .ts { position: absolute; right: 8px; bottom: 8px; padding: 2px 8px; border-radius: var(--r-pill); background: var(--coach-surface); color: var(--on-coach); font: 500 12px/18px var(--font); }
.vtitle { font: 500 14px/20px var(--font); display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.vmeta { font: 500 12px/18px var(--font); color: var(--ink-muted); padding: 0 2px 4px; }
details.sources { font: 500 13px/20px var(--font); }
details.sources summary { cursor: pointer; list-style: none; display: inline-flex; align-items: center; gap: 10px; padding: 10px 16px; border-radius: var(--r-pill); background: var(--surface-raised); font: 500 13px/18px var(--font); }
details.sources summary::-webkit-details-marker { display: none; }
details.sources summary svg { transition: transform .15s; }
details.sources[open] summary svg { transform: rotate(90deg); }
details.sources summary .muted { font: 500 13px/18px var(--font); }
details.sources .videos { margin-top: 12px; }
.vcard.is-hit { box-shadow: inset 0 0 0 2px var(--brand); }
.vthumb .refs { position: absolute; left: 8px; top: 8px; padding: 2px 8px; border-radius: var(--r-pill); background: var(--surface-raised); color: var(--ink); font: 500 11px/18px var(--font); }
.source { padding: 10px 12px; margin-top: 8px; border-radius: var(--r-md); background: var(--surface-raised); display: grid; gap: 4px; }
.source.is-hit { box-shadow: inset 0 0 0 2px var(--brand); }
.source q { color: var(--ink-muted); }
.confirm { gap: 12px; box-shadow: inset 0 0 0 2px var(--brand); }
.confirm.is-done { box-shadow: none; }
.confirm.is-off { box-shadow: none; opacity: .7; }
.confirm li { font: 500 14px/22px var(--font); }
.confirm .pub-line { display: flex; flex-wrap: wrap; align-items: center; gap: 4px 8px; }
.confirm .pub-line .select { flex: 1 1 220px; min-width: 0; font-weight: 600; }
.chip.is-on { box-shadow: inset 0 0 0 2px var(--ink); }
.chip-note { margin-left: 8px; font: 500 12px/18px var(--font); color: var(--ink-muted); }
.lib-row { display: grid; grid-template-columns: 200px minmax(0, 1fr); gap: 8px 16px; align-items: center; font: 500 14px/20px var(--font); }
.row.start { flex-wrap: nowrap; }
.select { min-height: 40px; padding: 8px 12px; border: 0; border-radius: var(--r-md); background: var(--surface); font: 500 14px/20px var(--font); color: var(--ink); max-width: 100%; }
.link.small { font-size: 12px; line-height: 18px; }
.pweeks { display: grid; grid-template-columns: repeat(auto-fill, minmax(230px, 1fr)); gap: 12px; max-height: 460px; overflow-y: auto; }
.pweek { background: var(--surface); border-radius: var(--r-lg); padding: 12px 14px; display: flex; flex-direction: column; gap: 8px; }
.pweek.is-out { opacity: .55; }
.pweek-head { display: flex; align-items: flex-start; gap: 8px; font: 500 14px/20px var(--font); }
.pitem { display: flex; align-items: flex-start; gap: 10px; font: 500 14px/20px var(--font); cursor: pointer; }
.pitem input { flex: none; width: 18px; height: 18px; margin: 1px 0 0; accent-color: var(--ink); }
.pitem input:not(:checked) + .plan-text { color: var(--ink-muted); text-decoration: line-through; }
.status { display: inline-flex; align-items: center; gap: 8px; font: 500 13px/18px var(--font); }
.status.ok { color: var(--success); }
.status.bad { color: var(--danger); }
.grid4 { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 12px; }
.mini { background: var(--surface); border-radius: var(--r-lg); padding: 14px; display: flex; flex-direction: column; gap: 4px; }
.mini b { font: 800 24px/29px var(--font); }
.mini span { font: 500 13px/18px var(--font); color: var(--ink-muted); }
.chart svg { display: block; width: 100%; height: auto; }
.daybars { display: grid; grid-template-columns: repeat(7, minmax(0, 1fr)); gap: 8px; align-items: end; }
.daybar { display: flex; flex-direction: column; align-items: center; gap: 6px; font: 500 12px/18px var(--font); color: var(--ink-muted); }
.daybar .col { width: 100%; height: 72px; border-radius: 8px; background: var(--surface); display: flex; align-items: flex-end; overflow: hidden; }
.daybar .col i { width: 100%; background: var(--level-accent); border-radius: 8px 8px 0 0; }
.daybar.is-today { color: var(--ink); font-weight: 800; }
.topic { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 4px 12px; font: 500 14px/20px var(--font); }
.topic .line { grid-column: 1 / -1; height: 4px; border-radius: var(--r-pill); background: var(--surface); overflow: hidden; }
.topic .line i { display: block; height: 100%; background: var(--level-accent); }
.table { width: 100%; border-collapse: collapse; font: 500 14px/20px var(--font); }
.table th { text-align: left; font: 500 12px/18px var(--font); letter-spacing: 1.2px; text-transform: uppercase; color: var(--ink-muted); padding: 8px; }
.table td { padding: 12px 8px; border-top: 1px solid var(--surface); font-variant-numeric: tabular-nums; }
.table .r { text-align: right; }
.table-wrap { overflow-x: auto; }

/* Program */
.week-nav { display: flex; align-items: center; gap: 8px; }
.day { display: grid; grid-template-columns: 160px minmax(0, 1fr); gap: 16px; align-items: start; padding: 16px 20px; border-radius: var(--r-lg); background: var(--surface-raised); }
.day.is-today { background: var(--surface); }
.day-name { display: grid; gap: 2px; }
.day .plan { padding: 6px 0; background: none; }
.seg { display: inline-flex; padding: 4px; gap: 4px; background: var(--surface-sunken); border-radius: var(--r-pill); }
.seg button { border: 0; background: none; padding: 8px 24px; border-radius: var(--r-pill); font: 500 14px/20px var(--font); }
.seg button.is-active { background: var(--surface-raised); }

/* Video */
.video-view { max-width: 1320px; flex-direction: row; flex-wrap: wrap; gap: 32px; align-items: flex-start; padding-bottom: 48px; }
.video-main { flex: 999 1 640px; min-width: 0; display: flex; flex-direction: column; gap: 16px; }
.video-view aside { flex: 1 1 320px; max-width: 420px; }
.player { position: relative; aspect-ratio: 16 / 9; border-radius: var(--r-lg); overflow: hidden; background: var(--coach-surface); }
.player video { width: 100%; height: 100%; display: block; background: #000; }
.player-msg { position: absolute; inset: 0; display: grid; place-items: center; padding: 24px; text-align: center; color: var(--on-coach); font: 500 15px/23px var(--font); }

@media (max-width: 900px) {
  .top { padding: 12px 16px; gap: 8px; }
  .top-nav { order: 5; width: 100%; margin: 0; overflow-x: auto; scrollbar-width: none; }
  .top-nav::-webkit-scrollbar { display: none; }
  .top-nav a { white-space: nowrap; }
  .ask { order: 4; min-width: 0; flex: 1; }
  .menu { right: 16px; }
  .view { padding: 8px 16px 48px; }
  body.coach-open .view, .view.chat { padding-bottom: 220px; }
  .display { font-size: 30px; line-height: 38px; }
  .trio, .duo { grid-template-columns: minmax(0, 1fr); }
  .duo { gap: 12px; }
  .trio > .card + .card { border-left: 0; border-top: 1px solid var(--border); }
  .day { grid-template-columns: minmax(0, 1fr); gap: 4px; }
  .grid4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .lib-row { grid-template-columns: minmax(0, 1fr); }
  .extras, .steps { padding-left: 0; }
  .coach { bottom: 12px; }
  .coach .chips { flex-wrap: nowrap; overflow-x: auto; justify-content: flex-start; max-width: 100%; }
  .chip { white-space: nowrap; }
}