:root {
  --radius: 22px;
  --green: var(--accent);
  --green-deep: var(--accent);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

html[data-theme="dark"] {
  color-scheme: dark;
  --bg: #07140f; --bg-deep: #040b08; --surface: #2a3034; --surface-strong: #343b40; --surface-soft: #20272a;
  --surface-raised: #222a2d; --input: #161d1f; --border: rgba(226, 232, 230, .16); --border-strong: rgba(226, 232, 230, .24);
  --text: #f4f7f5; --muted: #b8c3be; --accent: #75d6ae; --accent-strong: #a4e6c8; --accent-contrast: #06130e;
  --gold: #d8bd76; --danger: #ff9c9c; --focus: #a4f1d0; --shadow: 0 24px 70px rgba(0, 0, 0, .28);
  --body-glow: rgba(38, 116, 86, .27); --body-end: #091a14; --hero-start: rgba(15, 55, 41, .85); --hero-end: rgba(20, 34, 29, .74);
  --card-start: rgba(52, 59, 64, .98); --card-end: rgba(42, 48, 52, .98); --locked-start: rgba(42, 48, 52, .88); --locked-end: rgba(28, 34, 37, .9);
  --overlay: rgba(0, 0, 0, .18); --hover: rgba(255, 255, 255, .06); --provider-bg: #f6f7f7; --provider-text: #111;
}

html[data-theme="light"] {
  color-scheme: light;
  --bg: #f3f6f2; --bg-deep: #e8eee9; --surface: #ffffff; --surface-strong: #f7faf7; --surface-soft: #edf3ee;
  --surface-raised: #f5f8f5; --input: #ffffff; --border: rgba(20, 48, 37, .18); --border-strong: rgba(20, 48, 37, .30);
  --text: #14231d; --muted: #4e6259; --accent: #176948; --accent-strong: #207b58; --accent-contrast: #ffffff;
  --gold: #765b16; --danger: #a82f2f; --focus: #176948; --shadow: 0 20px 55px rgba(20, 48, 37, .14);
  --body-glow: rgba(68, 154, 117, .15); --body-end: #eef3ee; --hero-start: rgba(219, 239, 227, .96); --hero-end: rgba(244, 248, 244, .96);
  --card-start: rgba(255, 255, 255, .99); --card-end: rgba(245, 249, 246, .99); --locked-start: rgba(239, 243, 240, .98); --locked-end: rgba(229, 235, 231, .98);
  --overlay: rgba(20, 48, 37, .08); --hover: rgba(20, 70, 50, .07); --provider-bg: #ffffff; --provider-text: #14231d;
}

* { box-sizing: border-box; }
html { background: var(--bg-deep); scroll-behavior: smooth; }
body { margin: 0; min-width: 320px; min-height: 100vh; color: var(--text); background:
  radial-gradient(circle at 16% 0%, var(--body-glow), transparent 34rem),
  linear-gradient(145deg, var(--bg) 0%, var(--body-end) 48%, var(--bg-deep) 100%); }
button, input, textarea { font: inherit; }
a { color: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
:focus-visible { outline: 3px solid var(--focus); outline-offset: 4px; }
.skip-link { position: fixed; left: 1rem; top: 1rem; z-index: 100; padding: .8rem 1rem; background: var(--text); color: var(--bg); border-radius: 10px; clip-path: inset(100%); white-space: nowrap; }
.skip-link:focus-visible { clip-path: none; }

.site-header { min-height: 82px; display: flex; align-items: center; gap: 1rem; max-width: 1240px; margin: 0 auto; padding: 1rem 1.5rem; border-bottom: 1px solid var(--border); }
.brand { display: flex; align-items: center; gap: .9rem; text-decoration: none; white-space: nowrap; }
.brand img { width: min(248px, 38vw); height: auto; }
.brand span { color: var(--muted); font-size: .86rem; letter-spacing: .08em; text-transform: uppercase; }
.primary-nav { display: flex; align-items: center; gap: .35rem; margin-left: auto; }
.primary-nav a { color: var(--muted); text-decoration: none; padding: .75rem .9rem; border-radius: 12px; font-weight: 650; }
.primary-nav a:hover { color: var(--text); background: var(--hover); }
.account-block { display: flex; align-items: center; gap: .8rem; padding-left: .7rem; border-left: 1px solid var(--border); color: var(--muted); font-size: .9rem; }
.quiet-button { min-height: 44px; border: 1px solid var(--border); color: var(--text); background: transparent; padding: .65rem .8rem; border-radius: 10px; cursor: pointer; }
.theme-control { display: grid; gap: .15rem; color: var(--muted); font-size: .68rem; font-weight: 750; text-transform: uppercase; letter-spacing: .08em; }
.theme-control select { min-height: 44px; border: 1px solid var(--border-strong); border-radius: 10px; padding: 0 2rem 0 .7rem; color: var(--text); background: var(--surface); cursor: pointer; }
.pilot-label, .private-pill { margin-left: auto; color: var(--gold); border: 1px solid rgba(216,189,118,.35); background: rgba(216,189,118,.08); padding: .55rem .8rem; border-radius: 999px; font-size: .78rem; font-weight: 750; text-transform: uppercase; letter-spacing: .08em; }

.login-layout { max-width: 1180px; margin: 0 auto; min-height: calc(100vh - 82px); display: grid; grid-template-columns: 1.15fr .85fr; align-items: center; gap: clamp(2rem, 7vw, 7rem); padding: 3rem 2rem 5rem; }
.login-story { position: relative; min-height: 510px; display: flex; flex-direction: column; justify-content: center; overflow: hidden; }
.login-story h1, .page-hero h1, .course-hero h1 { font-family: Georgia, "Times New Roman", serif; font-weight: 500; letter-spacing: -.035em; line-height: .98; margin: .8rem 0 1.1rem; }
.login-story h1 { max-width: 720px; font-size: clamp(3.2rem, 7vw, 6.5rem); }
.lede { color: var(--muted); line-height: 1.75; font-size: 1.08rem; max-width: 600px; }
.eyebrow, .section-kicker, .step-label { color: var(--green); font-size: .76rem; font-weight: 800; letter-spacing: .14em; text-transform: uppercase; }
.trust-row { display: flex; gap: .6rem; flex-wrap: wrap; margin-top: 1.4rem; }
.trust-row span { border: 1px solid var(--border-strong); color: var(--text); background: var(--surface-soft); padding: .55rem .75rem; border-radius: 999px; font-size: .82rem; }
.knight-watermark { position: absolute; right: 2rem; bottom: 1rem; width: min(165px, 25vw); height: auto; opacity: .16; filter: saturate(.15); transform: rotate(-4deg); }
.login-card { background: linear-gradient(155deg, var(--card-start), var(--card-end)); border: 1px solid var(--border); border-radius: 28px; box-shadow: var(--shadow); padding: clamp(1.4rem, 4vw, 2.4rem); }
.login-card h2 { font-size: clamp(1.75rem, 4vw, 2.35rem); margin: .5rem 0 .6rem; }
.login-card > p { color: var(--muted); line-height: 1.6; }
.login-card form { display: grid; gap: .75rem; margin-top: 1.5rem; }
.login-card label, .draft-card label { font-weight: 750; font-size: .88rem; }
.login-card input { width: 100%; min-height: 48px; padding: 1rem; border-radius: 14px; border: 1px solid var(--border-strong); background: var(--input); color: var(--text); font-size: 1.35rem; letter-spacing: .35em; }
.login-card small, .adapter-note { color: var(--muted); }
code { color: var(--accent); background: var(--overlay); border-radius: 6px; padding: .15rem .35rem; }
.primary-button, .card-action { min-height: 48px; border: 0; border-radius: 13px; background: var(--accent-strong); color: var(--accent-contrast); font-weight: 850; padding: .85rem 1rem; cursor: pointer; text-decoration: none; display: inline-flex; justify-content: center; align-items: center; gap: .5rem; }
.primary-button:hover, .card-action:hover { filter: brightness(1.08); transform: translateY(-1px); }
.primary-button:disabled { opacity: .55; cursor: wait; }
.divider { display: flex; align-items: center; gap: .8rem; color: var(--muted); font-size: .8rem; margin: 1.4rem 0 1rem; }
.divider::before, .divider::after { content: ''; height: 1px; background: var(--border); flex: 1; }
.provider-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: .75rem; }
.provider-button { min-height: 48px; border: 1px solid var(--border); border-radius: 13px; background: var(--provider-bg); color: var(--provider-text); font-weight: 750; cursor: pointer; }
.provider-mark { display: inline-grid; place-items: center; width: 20px; margin-right: .35rem; }
.adapter-note { font-size: .76rem; margin-bottom: 0; }
.mycardchat-form { margin-top: 1rem; }
.mycardchat-form input { font-size: 1rem; letter-spacing: normal; }
.status-message { min-height: 1.3rem; color: var(--green); font-size: .85rem; margin-top: .6rem; }

.portal-main { max-width: 1240px; margin: 0 auto; padding: 2rem 1.5rem 5rem; }
.page-hero { position: relative; overflow: hidden; border: 1px solid var(--border); background: linear-gradient(125deg, var(--hero-start), var(--hero-end)); border-radius: 28px; }
.compact-hero { min-height: 250px; padding: clamp(1.5rem, 5vw, 3.2rem); display: flex; align-items: center; justify-content: space-between; gap: 2rem; }
.compact-hero h1 { font-size: clamp(3rem, 7vw, 5.6rem); }
.compact-hero p { color: var(--muted); line-height: 1.65; max-width: 680px; }
.compact-hero img { opacity: .65; filter: saturate(.3); }
.continue-strip, .authority-strip { display: flex; align-items: center; gap: 1.1rem; flex-wrap: wrap; margin: 1rem 0 2.2rem; padding: 1rem 1.2rem; border: 1px solid var(--border); border-radius: 14px; background: var(--surface); color: var(--muted); }
.continue-strip strong, .authority-strip strong { color: var(--text); }
.continue-strip span:last-child { margin-left: auto; color: var(--green); }
.section-heading, .studio-toolbar { display: flex; align-items: end; justify-content: space-between; gap: 1rem; margin: 2.8rem 0 1rem; }
.section-heading h2, .studio-toolbar h2, .resource-rail h2 { margin: .25rem 0 0; font-size: clamp(1.7rem, 4vw, 2.35rem); }
.section-heading a { color: var(--green); font-weight: 750; }
.course-grid, .draft-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1rem; }
.course-card, .draft-card, .resource-rail { min-width: 0; border: 1px solid var(--border); border-radius: var(--radius); background: linear-gradient(160deg, var(--card-start), var(--card-end)); box-shadow: var(--shadow); padding: 1.35rem; }
.course-card { display: flex; flex-direction: column; min-height: 350px; }
.course-card.is-locked { background: linear-gradient(160deg, var(--locked-start), var(--locked-end)); }
.course-card-top { display: flex; align-items: center; justify-content: space-between; gap: .6rem; }
.status-badge, .version-pill, .status-mini { display: inline-flex; width: fit-content; border-radius: 999px; padding: .38rem .58rem; font-size: .7rem; font-weight: 850; letter-spacing: .06em; text-transform: uppercase; }
.status-badge { color: #d5f4e7; background: rgba(25,84,62,.7); border: 1px solid rgba(117,214,174,.25); }
.status-coming_soon, .status-locked { color: #e3d7b7; background: rgba(97,77,34,.4); border-color: rgba(216,189,118,.3); }
.status-review_ready, .status-verified { color: #d9e5ff; background: rgba(54,70,101,.55); border-color: rgba(134,162,220,.3); }
.version-pill { color: var(--muted); background: rgba(0,0,0,.18); }
.course-card h3, .draft-card h3 { font-size: 1.45rem; line-height: 1.15; margin: 1.5rem 0 .7rem; }
.course-card > p, .draft-card > p { color: var(--muted); line-height: 1.55; }
.course-meta { display: flex; flex-wrap: wrap; gap: .55rem; color: var(--muted); font-size: .78rem; margin: auto 0 1rem; }
.course-meta span { padding-right: .55rem; border-right: 1px solid var(--border); }
.course-meta span:last-child { border: 0; }
.progress-block { margin: 0 0 1rem; }
.progress-block div { display: flex; justify-content: space-between; color: var(--muted); font-size: .78rem; margin-bottom: .4rem; }
progress { width: 100%; height: 8px; border: 0; border-radius: 999px; overflow: hidden; }
progress::-webkit-progress-bar { background: rgba(0,0,0,.25); }
progress::-webkit-progress-value { background: var(--green); border-radius: 999px; }
progress::-moz-progress-bar { background: var(--green); }
.card-action { width: 100%; margin-top: .25rem; }
.locked-action { color: var(--text); background: var(--surface-soft); border: 1px solid var(--border); }

.back-link { display: inline-block; margin-bottom: 1.4rem; color: var(--green); font-weight: 750; text-decoration: none; }
.course-hero { display: grid; grid-template-columns: 1fr 220px; gap: 2rem; align-items: end; border-bottom: 1px solid var(--border); padding: 1rem 0 2.2rem; }
.course-hero .eyebrow { margin-left: .7rem; }
.course-hero h1 { font-size: clamp(3.1rem, 8vw, 6.7rem); max-width: 980px; }
.course-hero p { color: var(--muted); font-size: 1.05rem; line-height: 1.65; max-width: 760px; }
.course-progress { display: grid; gap: .4rem; padding: 1.2rem; border-radius: 18px; background: var(--surface); border: 1px solid var(--border); }
.course-progress strong { font-size: 2.8rem; font-family: Georgia, serif; font-weight: 500; }
.course-progress span { color: var(--muted); }
.approved-video { display: grid; grid-template-columns: minmax(240px, .7fr) minmax(320px, 1.3fr); align-items: center; gap: 1.25rem; padding: 1.2rem 1.4rem; margin-top: 1.2rem; border: 1px solid var(--border-strong); border-radius: 18px; background: var(--surface-soft); }
.approved-video h2 { margin: .2rem 0; }
.approved-video p { color: var(--muted); line-height: 1.55; }
.approved-video video { display: block; width: 100%; max-height: 430px; border-radius: 14px; background: #020706; box-shadow: var(--shadow); }
.inline-button { width: fit-content; }
.course-layout { display: grid; grid-template-columns: minmax(0, 1.7fr) minmax(270px, .7fr); gap: 1.2rem; align-items: start; }
.module-list { list-style: none; padding: 0; margin: 0; display: grid; gap: .8rem; }
.module-list li { display: grid; grid-template-columns: 54px 1fr 48px; gap: 1rem; align-items: center; border-radius: 18px; background: var(--surface); border: 1px solid var(--border); padding: 1rem; }
.module-number { color: var(--gold); font-family: Georgia, serif; font-size: 1.5rem; }
.module-list h3 { margin: .35rem 0; }
.module-list p { color: var(--muted); margin: 0; line-height: 1.5; }
.status-mini { color: var(--green); padding: 0; }
.module-action { width: 44px; height: 44px; border-radius: 50%; border: 1px solid var(--border); background: var(--surface-soft); color: var(--text); cursor: pointer; }
.resource-rail { position: sticky; top: 1rem; margin-top: 2.8rem; }
.resource-rail ul { list-style: none; padding: 0; display: grid; gap: .7rem; }
.resource-rail li { display: grid; gap: .55rem; padding: .85rem; background: var(--surface-raised); border-radius: 12px; }
.resource-rail li div { display: grid; gap: .2rem; }
.resource-rail li span, .resource-rail li small { color: var(--muted); font-size: .72rem; }
.resource-action { display: inline-flex; align-items: center; justify-content: space-between; gap: .6rem; min-height: 42px; padding: .65rem .75rem; border: 1px solid var(--border-strong); border-radius: 10px; color: var(--green); background: var(--surface-soft); font-weight: 800; text-decoration: none; }
.resource-action:hover, .resource-action:focus-visible { border-color: var(--green); transform: translateY(-1px); }
.source-note { display: grid; gap: .2rem; color: var(--muted); border-top: 1px solid var(--border); margin-top: 1.1rem; padding-top: 1.1rem; font-size: .82rem; }
.source-note strong { color: var(--green); }

.course-segments { display: none; }
.course-columns { display: grid; grid-template-columns: minmax(0, 1fr); gap: 1rem; align-items: start; margin-top: 1.2rem; }
.course-columns .learning-panel { display: grid; gap: 1rem; min-width: 0; }
.module-list { display: grid; gap: .4rem; border: 1px solid var(--border); border-radius: var(--radius); background: linear-gradient(160deg, var(--card-start), var(--card-end)); box-shadow: var(--shadow); padding: 1.1rem; }
.module-list .learning-card-meta { margin-bottom: .6rem; }
.module-title { display: flex; align-items: center; gap: .8rem; min-height: 52px; padding: .6rem .9rem; text-align: left; border: 1px solid transparent; border-radius: 12px; color: var(--text); background: transparent; font-size: 1rem; cursor: pointer; }
.module-title:hover, .module-title:focus-visible { background: var(--surface-soft); }
.module-title.is-active { border-color: var(--border-strong); background: var(--surface-raised); font-weight: 750; }
.module-number { display: inline-flex; align-items: center; justify-content: center; width: 30px; height: 30px; flex: none; border-radius: 50%; border: 1px solid var(--border-strong); color: var(--muted); font-size: .8rem; font-weight: 800; }
.module-title.is-active .module-number { color: var(--accent); border-color: var(--accent); }
.course-columns .learning-card { min-height: 0; padding: clamp(1.4rem, 3vw, 2.2rem); }
.course-columns .learning-card h2 { font-size: clamp(1.7rem, 3.4vw, 2.6rem); }
.module-steps { margin: 1rem 0 0; padding-left: 1.4rem; display: grid; gap: .65rem; color: var(--text); line-height: 1.55; }
.module-steps a { color: var(--accent); font-weight: 650; }
.module-resources { display: flex; flex-wrap: wrap; gap: .55rem; margin-top: 1rem; }
.resource-chip { display: inline-flex; align-items: center; min-height: 44px; padding: .5rem .9rem; border: 1px solid var(--border-strong); border-radius: 999px; background: var(--surface-raised); color: var(--text); font-size: .84rem; font-weight: 650; text-decoration: none; }
.resource-chip:hover, .resource-chip:focus-visible { background: var(--surface-soft); }
.essentials-strip { display: grid; gap: 1rem; border: 1px solid var(--border); border-radius: var(--radius); background: linear-gradient(160deg, var(--card-start), var(--card-end)); box-shadow: var(--shadow); padding: 1.1rem 1.2rem; }
.essentials-group { display: flex; flex-wrap: wrap; align-items: center; gap: .55rem; }
.essentials-group .section-kicker { flex-basis: 100%; }
.more-materials { border: 1px solid var(--border); border-radius: var(--radius); background: var(--surface); padding: .4rem 1.2rem; }
.more-materials summary { min-height: 48px; display: flex; align-items: center; cursor: pointer; font-weight: 750; color: var(--muted); }
.more-materials ul { list-style: none; margin: 0 0 1rem; padding: 0; display: grid; gap: .6rem; }
.more-materials .resource-item { display: flex; align-items: center; justify-content: space-between; gap: .8rem; padding: .75rem .9rem; background: var(--surface-raised); border-radius: 12px; }
.more-materials .resource-item div { display: grid; gap: .15rem; }
.more-materials .resource-item span { color: var(--muted); font-size: .72rem; }
.chat-rail { display: flex; flex-direction: column; min-width: 0; border: 1px solid var(--border); border-radius: var(--radius); background: linear-gradient(160deg, var(--card-start), var(--card-end)); box-shadow: var(--shadow); }
.chat-rail .panel-heading { flex-wrap: wrap; }
.chat-mode-toggle { display: grid; grid-template-columns: 1fr 1fr; gap: .4rem; margin: 0 1.2rem .8rem; padding: .3rem; border: 1px solid var(--border); border-radius: 999px; background: var(--surface-soft); }
.chat-mode-toggle button { min-height: 42px; border: 0; border-radius: 999px; background: transparent; color: var(--muted); font-weight: 750; font-size: .84rem; cursor: pointer; }
.chat-mode-toggle button.is-active { background: var(--surface-raised); color: var(--text); border: 1px solid var(--border-strong); }
.rail-messages { list-style: none; margin: 0; padding: .4rem 1.2rem; display: grid; gap: .6rem; height: min(44vh, 430px); overflow-y: auto; border-top: 1px solid var(--border); }
.rail-messages li { padding: .7rem .85rem; border: 1px solid var(--border); border-radius: 13px; background: var(--surface-raised); }
.rail-messages li strong { display: block; font-size: .74rem; color: var(--accent); margin-bottom: .2rem; }
.rail-messages li p { margin: 0; line-height: 1.45; font-size: .92rem; white-space: pre-wrap; overflow-wrap: anywhere; }
.rail-messages .ai-message { border-color: var(--border-strong); background: var(--surface-soft); }
.rail-messages .chat-image { max-width: 100%; max-height: 220px; border-radius: 10px; display: block; }
.rail-messages li { position: relative; }
.chat-edit-button { position: absolute; top: .45rem; right: .5rem; width: 30px; height: 30px; border: 0; border-radius: 8px; background: transparent; color: var(--muted); cursor: pointer; font-size: .85rem; }
.chat-edit-button:hover, .chat-edit-button:focus-visible { background: var(--surface-soft); color: var(--text); }
.rail-messages textarea { width: 100%; margin-top: .3rem; border: 1px solid var(--border-strong); border-radius: 10px; padding: .55rem; background: var(--input); color: var(--text); font-size: .92rem; resize: vertical; }
.chat-edit-save { margin-top: .4rem; margin-right: .4rem; min-height: 40px; padding: .3rem .9rem; }
.rail-messages .chat-placeholder { border: 0; background: transparent; color: var(--muted); text-align: center; padding: 2rem .5rem; }
.rail-composer { display: grid; gap: .55rem; padding: .9rem 1.2rem calc(1rem + env(safe-area-inset-bottom, 0px)); border-top: 1px solid var(--border); }
.rail-composer textarea { width: 100%; resize: vertical; min-height: 58px; border: 1px solid var(--border-strong); border-radius: 12px; padding: .7rem; color: var(--text); background: var(--input); font-size: .95rem; }
.rail-composer label { font-size: .76rem; font-weight: 750; }
.rail-composer #rail-name-row { display: grid; gap: .35rem; }
.rail-composer #rail-name-row[hidden] { display: none; }
.rail-composer #rail-first-name { min-height: 44px; border: 1px solid var(--border-strong); border-radius: 10px; padding: .5rem .7rem; background: var(--input); color: var(--text); }
.visually-hidden { position: absolute; width: 1px; height: 1px; margin: -1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.community-links-row { display: flex; flex-wrap: wrap; gap: .8rem; padding: .7rem 1.2rem 0; }
.community-links-row a { color: var(--accent); font-size: .8rem; font-weight: 650; }
.course-workspace { display: grid; grid-template-columns: minmax(0, 1fr) minmax(310px, 390px); gap: 1rem; align-items: start; margin-top: 1.2rem; }
.learning-panel { grid-row: 1 / span 2; min-width: 0; }
.learning-card, .chat-panel { border: 1px solid var(--border); border-radius: var(--radius); background: linear-gradient(160deg, var(--card-start), var(--card-end)); box-shadow: var(--shadow); }
.learning-card { min-height: 560px; display: flex; flex-direction: column; justify-content: center; padding: clamp(1.5rem, 5vw, 4rem); }
.learning-card-meta { display: flex; align-items: center; justify-content: space-between; gap: 1rem; color: var(--muted); margin-bottom: 2rem; }
.learning-card .surface-title { margin: .2rem 0 0; font: 800 1rem/1.2 Inter, ui-sans-serif, system-ui, sans-serif; letter-spacing: 0; color: var(--text); }
.learning-card h2 { max-width: 760px; margin: .8rem 0; font: 500 clamp(2.3rem, 5vw, 4.8rem)/1 Georgia, serif; letter-spacing: -.03em; }
.learning-card > p { max-width: 680px; color: var(--muted); font-size: 1.05rem; line-height: 1.7; }
.learning-controls { display: grid; grid-template-columns: auto minmax(80px, 1fr) auto; align-items: center; gap: 1rem; margin-top: auto; padding-top: 2rem; }
.learning-controls button { min-height: 48px; }
.quiet-button:disabled { opacity: .45; cursor: not-allowed; }
.chat-panel { min-width: 310px; max-width: 520px; overflow: auto; resize: horizontal; }
.panel-heading { display: flex; align-items: center; justify-content: space-between; gap: 1rem; padding: 1.2rem 1.2rem .7rem; }
.panel-heading h2 { margin: .2rem 0 0; }
.panel-collapse, .mention-trigger { width: 44px; height: 44px; border-radius: 50%; border: 1px solid var(--border-strong); color: var(--text); background: var(--surface-soft); cursor: pointer; }
.chat-panel.is-collapsed { resize: none; }
.chat-panel.is-collapsed > :not(.panel-heading) { display: none; }
.synthetic-note { margin: 0 1.2rem .7rem; padding: .7rem; border-radius: 10px; background: var(--surface-soft); color: var(--muted); font-size: .78rem; line-height: 1.45; }
.community-links { list-style: none; margin: 0; padding: .5rem 1.2rem 1.2rem; display: grid; gap: .75rem; }
.community-links li { display: grid; gap: .65rem; padding: .9rem; border: 1px solid var(--border); border-radius: 13px; background: var(--surface-raised); }
.community-links li div { display: grid; gap: .2rem; }
.community-links small, .community-links p { color: var(--muted); font-size: .76rem; line-height: 1.45; margin: 0; }
.community-links .card-action { margin-top: 0; }
.pending-chip { display: inline-flex; width: fit-content; padding: .4rem .65rem; border-radius: 999px; color: var(--gold); background: rgba(226, 181, 83, .12); border: 1px solid rgba(226, 181, 83, .35); font-size: .72rem; font-weight: 800; }
.chat-messages { list-style: none; display: grid; gap: .7rem; min-height: 180px; max-height: 310px; overflow-y: auto; margin: 0; padding: .5rem 1.2rem 1rem; }
.chat-messages li { padding: .8rem; border: 1px solid var(--border); border-radius: 13px; background: var(--surface-raised); }
.chat-messages strong { display: flex; align-items: center; gap: .4rem; }
.chat-messages strong span { color: var(--accent); font-size: .68rem; text-transform: uppercase; letter-spacing: .06em; }
.chat-messages p { margin: .35rem 0 0; color: var(--muted); line-height: 1.45; }
.chat-composer { position: relative; display: grid; gap: .6rem; padding: 1rem 1.2rem calc(1rem + env(safe-area-inset-bottom, 0px)); border-top: 1px solid var(--border); background: var(--surface); }
.chat-composer label { font-size: .78rem; font-weight: 750; }
.chat-composer textarea { width: 100%; min-height: 84px; resize: vertical; border: 1px solid var(--border-strong); border-radius: 12px; padding: .8rem; color: var(--text); background: var(--input); }
.composer-actions { display: flex; justify-content: space-between; gap: .7rem; }
.composer-actions .primary-button { flex: 1; }
.composer-status { min-height: 1.2rem; margin: 0; color: var(--accent); font-size: .75rem; line-height: 1.35; }
.mention-picker { position: absolute; z-index: 4; left: 1rem; right: 1rem; bottom: calc(100% - .5rem); overflow: hidden; border: 1px solid var(--border-strong); border-radius: 14px; background: var(--surface); box-shadow: var(--shadow); }
.mention-picker[hidden] { display: none; }
.mention-picker button { width: 100%; min-height: 52px; display: grid; gap: .15rem; padding: .7rem .9rem; text-align: left; border: 0; border-bottom: 1px solid var(--border); color: var(--text); background: transparent; cursor: pointer; }
.mention-picker button:last-child { border-bottom: 0; }
.mention-picker button:hover, .mention-picker button:focus-visible { background: var(--surface-soft); }
.mention-picker span { color: var(--muted); font-size: .72rem; }
.course-workspace .resource-rail { position: static; margin-top: 0; box-shadow: var(--shadow); }

.studio-toolbar { margin-bottom: .25rem; }
.scope-note { color: var(--muted); margin-bottom: 1.3rem; }
.draft-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.draft-card { display: flex; flex-direction: column; gap: .8rem; }
.draft-card h3 { margin-bottom: 0; }
.draft-card textarea { resize: vertical; min-height: 120px; padding: .85rem; color: var(--text); background: var(--input); border: 1px solid var(--border); border-radius: 12px; line-height: 1.5; }
.no-video-note, .video-approved-note { padding: .75rem; color: var(--muted); background: rgba(0,0,0,.17); border-left: 3px solid var(--gold); border-radius: 8px; font-size: .83rem; }
.video-approved-note { border-color: var(--green); }
.authority-strip { margin-top: 1.2rem; }
.authority-strip span:last-child { color: var(--gold); }
.toast { min-height: 1.5rem; margin-top: 1rem; color: var(--green); font-weight: 700; }
.empty-state, .loading-shell { min-height: 70vh; display: grid; place-content: center; justify-items: center; text-align: center; padding: 2rem; }
.empty-state p, .loading-shell p { color: var(--muted); }
footer { display: flex; justify-content: space-between; gap: 1rem; max-width: 1240px; margin: 0 auto; padding: 1.4rem 1.5rem 2.5rem; border-top: 1px solid var(--border); color: var(--muted); font-size: .78rem; }

@media (max-width: 900px) {
  .site-header { flex-wrap: wrap; gap: .7rem; }
  .primary-nav { order: 3; width: 100%; overflow-x: auto; margin: 0; padding-top: .5rem; }
  .account-block { margin-left: auto; }
  .account-block span { display: none; }
  .login-layout { grid-template-columns: 1fr; padding-top: 1.5rem; gap: 1rem; }
  .login-story { min-height: 360px; }
  .course-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .course-layout { grid-template-columns: 1fr; }
  .resource-rail { position: static; margin-top: 0; }
}

@media (max-width: 980px) {
  .course-columns { grid-template-columns: 1fr; }
  .chat-rail { position: static; }
  .chat-embed { height: 60vh; }
}
@media (max-width: 700px) {
  .course-shell { padding-bottom: 6rem; }
  .course-hero { padding-top: 0; }
  .course-hero h1 { font-size: clamp(2.65rem, 14vw, 4rem); }
  .course-segments { position: fixed; z-index: 20; left: max(.75rem, env(safe-area-inset-left)); right: max(.75rem, env(safe-area-inset-right)); bottom: calc(.65rem + env(safe-area-inset-bottom, 0px)); display: grid; grid-template-columns: repeat(3, 1fr); gap: .3rem; padding: .35rem; border: 1px solid var(--border-strong); border-radius: 16px; background: var(--surface); box-shadow: var(--shadow); }
  .course-segments button { min-height: 48px; border: 0; border-radius: 12px; color: var(--muted); background: transparent; font-weight: 800; cursor: pointer; }
  .course-segments button[aria-selected="true"] { color: var(--accent-contrast); background: var(--accent-strong); }
  .course-workspace { display: block; margin-top: 1rem; }
  .course-workspace [data-surface-panel] { display: none; }
  .course-workspace[data-active-surface="learn"] [data-surface-panel="learn"],
  .course-workspace[data-active-surface="chat"] [data-surface-panel="chat"],
  .course-workspace[data-active-surface="resources"] [data-surface-panel="resources"] { display: block; }
  .learning-card { min-height: min(620px, calc(100svh - 11rem)); padding: 1.3rem; }
  .learning-controls { grid-template-columns: 1fr 1fr; }
  .learning-controls progress { grid-column: 1 / -1; grid-row: 1; }
  .chat-panel { width: 100%; min-width: 0; max-width: none; min-height: calc(100svh - 10rem); flex-direction: column; resize: none; }
  .course-workspace[data-active-surface="chat"] .chat-panel { display: flex !important; }
  .chat-panel.is-collapsed > :not(.panel-heading) { display: initial; }
  .panel-collapse { display: none; }
  .chat-messages { flex: 1; max-height: none; }
  .chat-composer { position: sticky; bottom: 0; margin-top: auto; }
  .course-workspace .resource-rail { min-height: calc(100svh - 10rem); }
}

@media (max-width: 620px) {
  .site-header { padding: .85rem 1rem; }
  .brand span { display: none; }
  .brand img { width: 190px; }
  .pilot-label { font-size: .65rem; }
  .login-layout, .portal-main { padding-left: 1rem; padding-right: 1rem; }
  .login-story { min-height: 320px; }
  .login-story h1 { font-size: 3.4rem; }
  .knight-watermark { right: 0; }
  .provider-grid, .course-grid, .draft-grid { grid-template-columns: 1fr; }
  .compact-hero { min-height: 220px; padding: 1.5rem; }
  .compact-hero h1 { font-size: 3.1rem; }
  .compact-hero img { width: 55px; height: auto; }
  .course-hero { grid-template-columns: 1fr; }
  .course-hero h1 { font-size: 3.45rem; }
  .course-progress { width: 100%; }
  .approved-video { grid-template-columns: 1fr; align-items: stretch; }
  .studio-toolbar { align-items: stretch; flex-direction: column; }
  .section-heading { align-items: start; }
  .module-list li { grid-template-columns: 40px 1fr; }
  .module-action { grid-column: 2; }
  footer { flex-direction: column; }
}

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

/* Admin grant tool (Instructor Studio) */
.grant-form { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 0.9rem; align-items: end; margin: 0.5rem 0 1.2rem; }
.grant-form label { display: flex; flex-direction: column; gap: 0.35rem; font-size: 0.85rem; }
.grant-form input, .grant-form select { padding: 0.55rem 0.7rem; border-radius: 8px; border: 1px solid var(--border, #ccc); background: var(--surface, #fff); color: inherit; font: inherit; }
.grant-table { width: 100%; border-collapse: collapse; font-size: 0.85rem; margin-bottom: 1.4rem; }
.grant-table th, .grant-table td { text-align: left; padding: 0.45rem 0.6rem; border-bottom: 1px solid var(--border, #ddd); }

/* Copy-able code cards in chat + AI helper */
.chat-body p { margin: 0.25rem 0; }
.chat-code { position: relative; margin: 0.5rem 0; border: 1px solid var(--border, #3333); border-radius: 10px; background: color-mix(in srgb, currentColor 6%, transparent); overflow: hidden; }
.chat-code pre { margin: 0; padding: 0.75rem 0.9rem; overflow-x: auto; }
.chat-code code { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 0.82rem; line-height: 1.5; white-space: pre; }
.copy-button { position: absolute; top: 0.4rem; right: 0.4rem; padding: 0.25rem 0.6rem; font-size: 0.72rem; border-radius: 6px; border: 1px solid var(--border, #3335); background: var(--surface, #fff); cursor: pointer; opacity: 0.85; }
.copy-button:hover { opacity: 1; }
.inline-code { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 0.85em; padding: 0.08em 0.35em; border-radius: 5px; background: color-mix(in srgb, currentColor 10%, transparent); }

/* ---- Floating chat widget ---- */
.chat-launcher {
  position: fixed;
  right: max(1.1rem, env(safe-area-inset-right));
  bottom: max(1.1rem, env(safe-area-inset-bottom));
  z-index: 60;
  width: 56px; height: 56px;
  display: flex; align-items: center; justify-content: center;
  border-radius: 50%;
  border: 1px solid var(--border);
  background: var(--accent, #79e0b8);
  color: #08301f;
  box-shadow: 0 10px 28px rgba(0, 0, 0, 0.35);
  cursor: pointer;
  transition: transform 0.15s ease;
}
.chat-launcher:hover { transform: scale(1.06); }
.chat-widget .chat-panel { display: none; }
.chat-widget.is-open .chat-panel {
  display: flex;
  position: fixed;
  right: max(1.1rem, env(safe-area-inset-right));
  bottom: max(1.1rem, env(safe-area-inset-bottom));
  z-index: 70;
  width: min(400px, calc(100vw - 2.2rem));
  height: min(600px, calc(100dvh - 2.2rem));
  overflow: hidden;
}
.chat-widget.is-open .chat-launcher { display: none; }
.chat-panel .rail-messages { flex: 1 1 auto; min-height: 0; overflow-y: auto; overscroll-behavior: contain; }
.chat-panel .rail-composer { flex-shrink: 0; }
.chat-panel-heading { flex-shrink: 0; }
.chat-panel-actions { display: flex; align-items: center; gap: 0.5rem; }
.chat-close {
  width: 34px; height: 34px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: transparent;
  color: inherit;
  font-size: 0.95rem;
  cursor: pointer;
}
.chat-close:hover { background: color-mix(in srgb, currentColor 10%, transparent); }

/* Phone: the open panel takes over the screen; 100dvh tracks the keyboard so
   the composer stays visible while typing. Page scroll locks behind it. */
@media (max-width: 700px) {
  .chat-widget.is-open .chat-panel {
    inset: 0;
    width: 100vw;
    height: 100dvh;
    border-radius: 0;
    border: none;
    background: var(--bg-deep);
  }
  html.chat-widget-open, html.chat-widget-open body { overflow: hidden; height: 100%; }
  .chat-panel .rail-composer { padding-bottom: max(0.8rem, env(safe-area-inset-bottom)); }
}

/* Course editor */
.editor-modules { display: grid; gap: 1rem; margin-bottom: 1.4rem; }
.editor-module label { display: flex; flex-direction: column; gap: 0.3rem; font-size: 0.85rem; margin-top: 0.6rem; }
.editor-module input, .editor-module textarea { padding: 0.55rem 0.7rem; border-radius: 8px; border: 1px solid var(--border); background: var(--surface-soft); color: inherit; font: inherit; }
.editor-resources { list-style: none; padding: 0; display: grid; gap: 0.5rem; margin-bottom: 1.2rem; }

/* Module resource picker + linked chips */
.module-linked { margin-top: 0.7rem; display: grid; gap: 0.45rem; }
.linked-chips { display: flex; flex-wrap: wrap; gap: 0.4rem; }
.linked-chip { display: inline-flex; align-items: center; gap: 0.35rem; }
.unlink-resource { border: none; background: transparent; color: inherit; cursor: pointer; font-size: 0.8rem; opacity: 0.7; }
.unlink-resource:hover { opacity: 1; }
.resource-picker { border: 1px solid var(--border); border-radius: 12px; padding: 0.8rem; display: grid; gap: 0.5rem; background: var(--surface-soft); }
.picker-list { display: grid; gap: 0.3rem; max-height: 200px; overflow-y: auto; }
.picker-item { display: flex; align-items: center; gap: 0.5rem; font-size: 0.85rem; }
.picker-course { padding: 0.5rem 0.7rem; border-radius: 8px; border: 1px solid var(--border); background: var(--surface); color: inherit; font: inherit; }
.resource-picker[hidden] { display: none; }

/* Store */
.store-tile.is-locked { opacity: 0.75; }
.locked-action { background: var(--surface-soft); color: var(--muted); cursor: default; }

/* Lifecycle */
.lifecycle-controls { margin: 0.4rem 0 1rem; }
.review-note { border: 1px solid rgba(216,189,118,.4); background: rgba(216,189,118,.1); border-radius: 12px; padding: 0.8rem 1rem; line-height: 1.5; }
.status-published { color: var(--accent); }

/* Workshop cover art: two-part tiles like autoedu.ai/workshops — the image
   sits on top of the card, text below. On the course page the art shows
   above the title. Card padding is 1.35rem (negative margins pull the image
   to the card edges). */
.course-card-art { width: calc(100% + 2.7rem); margin: -1.35rem -1.35rem 0.9rem; aspect-ratio: 16 / 9; object-fit: cover; border-radius: var(--radius) var(--radius) 0 0; display: block; }
.course-hero-art { width: 100%; max-width: 560px; aspect-ratio: 16 / 9; object-fit: cover; border-radius: 14px; display: block; margin: 0.6rem 0 1rem; }
@media (max-width: 700px) { .course-hero-art { max-width: 100%; } }

/* Studio polish */
.note-tag { color: var(--gold); border: 1px solid rgba(216,189,118,.35); background: rgba(216,189,118,.1); border-radius: 999px; padding: .38rem .58rem; font-size: .7rem; font-weight: 800; }
.chat-today-banner { margin: 0; padding: 0.6rem 0.9rem; background: rgba(117,214,174,.12); border-bottom: 1px solid var(--border); color: var(--accent-strong); font-weight: 700; font-size: 0.88rem; }
#course-notes { width: 100%; padding: 0.7rem 0.9rem; border-radius: 10px; border: 1px solid var(--border); background: var(--surface-soft); color: inherit; font: inherit; }
#course-starts-at { padding: 0.5rem 0.7rem; border-radius: 8px; border: 1px solid var(--border); background: var(--surface); color: inherit; font: inherit; }
#course-brief { width: 100%; padding: 0.8rem 1rem; border-radius: 12px; border: 1px solid var(--border); background: var(--surface-soft); color: inherit; font: inherit; line-height: 1.5; }
.source-list .resource-item a { color: var(--accent-strong); }

/* Login revamp + access options + store attach */
.provider-grid-stacked { grid-template-columns: 1fr; gap: 0.6rem; margin-top: 1.2rem; }
.pin-reveal { margin-top: 1.1rem; border: none; background: none; color: #6ea8fe; font-size: 0.82rem; cursor: pointer; text-decoration: underline; padding: 0; }
.access-options { display: grid; gap: 0.5rem; margin-top: 0.7rem; }
.access-options .primary-button, .access-options .card-action { text-align: center; }
#store-attach { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 0.35rem; max-height: 280px; overflow-y: auto; border: 1px solid var(--border); border-radius: 12px; padding: 0.8rem; background: var(--surface-soft); }
#pin-form[hidden] { display: none; }