/* Course platform stylesheet. The two brand colours come from Admin → Brand
   (settings/brand) and are applied as CSS variables by js/app.js; everything
   else derives from them. Light theme only, by design: a course site a
   creator customises should look the same to her and her students. */

:root {
  --primary-color: #2f6fed;
  --accent-color: #f5b400;
  --primary-strong: color-mix(in srgb, var(--primary-color) 78%, black);
  --primary-soft: color-mix(in srgb, var(--primary-color) 12%, white);
  --primary-line: color-mix(in srgb, var(--primary-color) 35%, white);

  --bg: #f7f8fb;
  --panel: #ffffff;
  --text: #15171f;
  --text-2: #4a4f5e;
  --text-3: #7a8092;
  --line: rgba(21, 23, 31, 0.10);
  --ok: #1d7a4b; --ok-bg: #e6f5ec;
  --warn: #8a5a00; --warn-bg: #fff4d6;
  --err: #b42318; --err-bg: #fde8e6;

  --radius: 14px;
  --radius-lg: 22px;
  --shadow: 0 10px 30px rgba(21, 23, 31, 0.07);
  --font: "Manrope", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; min-height: 100vh; font-family: var(--font); color: var(--text); background: var(--bg); line-height: 1.55; }
a { color: var(--primary-strong); }
h1, h2, h3 { line-height: 1.15; margin: 0 0 .6rem; }
h1 { font-size: 2.1rem; font-weight: 800; letter-spacing: -0.01em; }
h2 { font-size: 1.35rem; font-weight: 800; }
h3 { font-size: 1.05rem; font-weight: 700; }
p { margin: 0 0 .9rem; }
code { background: var(--primary-soft); color: var(--primary-strong); padding: .05rem .35rem; border-radius: 6px; font-size: .9em; }
[hidden] { display: none !important; }

/* ── Top bar ─────────────────────────────────────────────────────────────── */
.topbar { display: flex; align-items: center; justify-content: space-between; gap: 1rem; padding: .9rem 1.25rem; background: var(--panel); border-bottom: 1px solid var(--line); position: sticky; top: 0; z-index: 20; }
.brand { display: inline-flex; align-items: center; gap: .6rem; font-weight: 800; font-size: 1.15rem; color: var(--text); text-decoration: none; }
.brand-logo { height: 28px; width: auto; }
.topnav { display: flex; gap: .25rem; align-items: center; flex-wrap: wrap; }
.topnav a, .topnav .linklike { color: var(--text-2); text-decoration: none; padding: .45rem .75rem; border-radius: 999px; font-weight: 600; font-size: .92rem; background: none; border: 0; font-family: inherit; cursor: pointer; }
.topnav a:hover, .topnav .linklike:hover { background: var(--primary-soft); color: var(--primary-strong); }
.topnav .nav-active { background: var(--primary-soft); color: var(--primary-strong); }

/* ── Layout ──────────────────────────────────────────────────────────────── */
.page { max-width: 1040px; margin: 0 auto; padding: 1.75rem 1.25rem 4rem; }
.page-narrow { max-width: 640px; }
.page-wide { max-width: 1280px; }
.eyebrow { display: inline-block; font-size: .72rem; font-weight: 800; letter-spacing: .12em; text-transform: uppercase; color: var(--primary-strong); background: var(--primary-soft); padding: .3rem .7rem; border-radius: 999px; margin-bottom: .7rem; }
.muted { color: var(--text-3); }
.small { font-size: .88rem; }
.row { display: flex; gap: .75rem; align-items: center; flex-wrap: wrap; }
.row-between { justify-content: space-between; }
.grid { display: grid; gap: 1rem; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); }
.stack > * + * { margin-top: 1rem; }

.card { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius-lg); padding: 1.25rem; box-shadow: var(--shadow); }
.card-link { display: block; text-decoration: none; color: inherit; transition: transform .12s; }
.card-link:hover { transform: translateY(-2px); border-color: var(--primary-line); }
.card-cover { aspect-ratio: 16/9; border-radius: var(--radius); background: linear-gradient(135deg, var(--primary-soft), var(--primary-line)); margin-bottom: .9rem; object-fit: cover; width: 100%; display: block; }

/* ── Buttons + forms ─────────────────────────────────────────────────────── */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: .5rem; border: 1px solid transparent; border-radius: 999px; padding: .65rem 1.2rem; font: inherit; font-weight: 700; cursor: pointer; text-decoration: none; line-height: 1.2; }
.btn-primary { background: var(--primary-color); color: #fff; box-shadow: 0 8px 20px color-mix(in srgb, var(--primary-color) 30%, transparent); }
.btn-primary:hover { background: var(--primary-strong); }
.btn-secondary { background: var(--panel); color: var(--text); border-color: var(--line); }
.btn-secondary:hover { border-color: var(--primary-line); color: var(--primary-strong); }
.btn-danger { background: var(--err-bg); color: var(--err); border-color: transparent; }
.btn-small { padding: .4rem .85rem; font-size: .85rem; }
.btn:disabled { opacity: .55; cursor: default; box-shadow: none; }
label { display: block; font-weight: 700; font-size: .88rem; margin: .8rem 0 .3rem; color: var(--text-2); }
input[type=text], input[type=email], input[type=password], input[type=number], input[type=url], select, textarea { width: 100%; font: inherit; padding: .6rem .75rem; border: 1px solid var(--line); border-radius: 10px; background: #fff; color: var(--text); }
input:focus, select:focus, textarea:focus { outline: 2px solid var(--primary-line); border-color: transparent; }
textarea { min-height: 90px; resize: vertical; }
.check { display: flex; align-items: center; gap: .5rem; font-weight: 600; margin: .5rem 0; }
.check input { width: auto; }
.field-row { display: grid; gap: .75rem; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); }
.help { font-size: .82rem; color: var(--text-3); margin: .25rem 0 0; }

/* ── Alerts + toasts ─────────────────────────────────────────────────────── */
.alert { padding: .8rem 1rem; border-radius: var(--radius); font-weight: 600; margin: .75rem 0; border: 1px solid transparent; }
.alert-error { background: var(--err-bg); color: var(--err); border-color: color-mix(in srgb, var(--err) 25%, white); }
.alert-ok { background: var(--ok-bg); color: var(--ok); }
.alert-warn { background: var(--warn-bg); color: var(--warn); }
.alert-info { background: var(--primary-soft); color: var(--primary-strong); }
.toast { position: fixed; left: 50%; bottom: 1.5rem; transform: translate(-50%, 20px); opacity: 0; transition: all .25s; background: var(--text); color: #fff; padding: .7rem 1.1rem; border-radius: 999px; font-weight: 600; z-index: 100; max-width: 90vw; }
.toast.show { opacity: 1; transform: translate(-50%, 0); }
.toast-error { background: var(--err); }
.toast-ok { background: var(--ok); }

/* ── Course outline ──────────────────────────────────────────────────────── */
.progress-track { height: 8px; border-radius: 999px; background: var(--primary-soft); overflow: hidden; }
.progress-fill { height: 100%; background: var(--primary-color); border-radius: 999px; transition: width .4s; }
.module { margin-top: 1.5rem; }
.module-title { font-size: 1.05rem; font-weight: 800; padding-bottom: .5rem; border-bottom: 1px solid var(--line); margin-bottom: .25rem; }
.lesson-row { display: flex; align-items: center; gap: .9rem; padding: .8rem .5rem; border-bottom: 1px solid var(--line); text-decoration: none; color: var(--text); border-radius: 10px; }
.lesson-row:hover { background: var(--panel); }
.lesson-row:last-child { border-bottom: 0; }
.lesson-icon { flex: 0 0 2rem; height: 2rem; border-radius: 50%; display: flex; align-items: center; justify-content: center; background: var(--primary-soft); color: var(--primary-strong); font-size: .8rem; font-weight: 800; }
.lesson-row.done .lesson-icon { background: var(--ok-bg); color: var(--ok); }
.lesson-row.locked { color: var(--text-3); }
.lesson-row.locked .lesson-icon { background: #eceef3; color: var(--text-3); }
.lesson-name { flex: 1; font-weight: 600; }
.lesson-meta { font-size: .82rem; color: var(--text-3); white-space: nowrap; }
.pill { display: inline-block; font-size: .72rem; font-weight: 800; padding: .15rem .55rem; border-radius: 999px; background: var(--primary-soft); color: var(--primary-strong); }
.pill-ok { background: var(--ok-bg); color: var(--ok); }
.pill-warn { background: var(--warn-bg); color: var(--warn); }
.pill-err { background: var(--err-bg); color: var(--err); }
.pill-muted { background: #eceef3; color: var(--text-3); }

/* ── Lesson player ───────────────────────────────────────────────────────── */
.player-layout { display: grid; grid-template-columns: minmax(0, 1.6fr) minmax(300px, 1fr); gap: 1.5rem; align-items: start; }
.player-layout.no-chat { grid-template-columns: minmax(0, 1fr); max-width: 900px; margin: 0 auto; }
@media (max-width: 900px) { .player-layout { grid-template-columns: 1fr; } }
.player-media { position: relative; border-radius: var(--radius-lg); overflow: hidden; background: #000; aspect-ratio: 16/9; box-shadow: var(--shadow); }
.player-media video { width: 100%; height: 100%; display: block; background: #000; }
.media-state { position: absolute; inset: 0; display: flex; flex-direction: column; align-items: center; justify-content: center; text-align: center; color: #fff; background: #1b1d26; padding: 1.5rem; gap: .4rem; }
.media-state.error { background: #3a1613; color: #ffd9d6; }
.media-state .btn { margin-top: .6rem; }
.lesson-nav { display: flex; justify-content: space-between; gap: .75rem; margin: 1rem 0; }
.resources { margin-top: 1rem; }
.resource { display: flex; align-items: center; gap: .5rem; padding: .55rem .8rem; border: 1px solid var(--line); border-radius: 10px; background: var(--panel); margin-bottom: .4rem; }
.resource a { font-weight: 600; }

/* chat (optional module) */
.chat-card { position: sticky; top: 4.5rem; display: flex; flex-direction: column; max-height: 80vh; }
.chat-messages { flex: 1; overflow-y: auto; display: flex; flex-direction: column; gap: .5rem; min-height: 200px; max-height: 50vh; padding: .5rem 0; }
.chat-msg { max-width: 92%; padding: .6rem .85rem; border-radius: 14px; font-size: .92rem; white-space: pre-wrap; word-wrap: break-word; }
.chat-msg-bot { background: var(--primary-soft); align-self: flex-start; }
.chat-msg-user { background: #eceef3; align-self: flex-end; }
.chat-msg-error { background: var(--err-bg); color: var(--err); align-self: flex-start; }
.chat-msg-limit { background: var(--warn-bg, #fff4d6); color: var(--warn, #6b4d00); border: 1px solid color-mix(in srgb, var(--warn, #6b4d00) 30%, transparent); align-self: flex-start; }
.chat-card-inline { position: static; max-height: none; }
.chat-signup input[type="text"], .chat-signup input[type="email"], .chat-signup input[type="password"] { width: 100%; }
.chat-upsell { margin-top: .35rem; align-self: flex-start; color: #fff; }
.chat-inputrow { display: flex; gap: .5rem; margin-top: .6rem; }
.chat-inputrow textarea { min-height: 0; max-height: 7rem; }

/* ── Dashboard calendar ──────────────────────────────────────────────────── */
.cal { display: grid; grid-template-columns: repeat(15, 1fr); gap: 4px; margin: .75rem 0 .5rem; }
@media (max-width: 640px) { .cal { grid-template-columns: repeat(10, 1fr); } }
.cal-day { aspect-ratio: 1; border-radius: 8px; background: #eceef3; display: flex; flex-direction: column; align-items: center; justify-content: center; font-size: .7rem; color: var(--text-3); line-height: 1.1; }
.cal-day .cal-wd { font-size: .6rem; font-weight: 700; opacity: .7; }
.cal-day .cal-n { font-weight: 700; font-size: .78rem; }
.cal-day.on { background: var(--primary-color); color: #fff; }
.cal-day.on .cal-wd { opacity: .85; }
.cal-day.today { outline: 2px solid var(--accent-color); outline-offset: 1px; }

/* ── Tables (admin) ──────────────────────────────────────────────────────── */
table { width: 100%; border-collapse: collapse; font-size: .92rem; }
/* Admin tables can be wider than a phone: scroll the table, never the page. */
@media (max-width: 640px) { table { display: block; overflow-x: auto; white-space: nowrap; } }
th, td { text-align: left; padding: .55rem .6rem; border-bottom: 1px solid var(--line); vertical-align: top; }
th { font-size: .75rem; letter-spacing: .08em; text-transform: uppercase; color: var(--text-3); }
td.num, th.num { text-align: right; font-variant-numeric: tabular-nums; }

/* ── Admin ───────────────────────────────────────────────────────────────── */
.admin-grid { display: grid; gap: 1rem; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); }
.tile { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius-lg); padding: 1rem 1.1rem; }
.tile .k { font-size: .75rem; letter-spacing: .08em; text-transform: uppercase; color: var(--text-3); font-weight: 700; }
.tile .v { font-size: 1.7rem; font-weight: 800; margin-top: .2rem; font-variant-numeric: tabular-nums; }
.tile .s { font-size: .82rem; color: var(--text-3); }
.panel-state { padding: 1rem; border-radius: var(--radius); font-weight: 600; }
.panel-state.loading { background: #eceef3; color: var(--text-2); }
.panel-state.error { background: var(--err-bg); color: var(--err); }
.panel-state.unconfigured { background: var(--warn-bg); color: var(--warn); }
.bars { display: flex; align-items: flex-end; gap: 3px; height: 120px; margin: .5rem 0; }
.bar { flex: 1; background: var(--primary-color); border-radius: 3px 3px 0 0; min-height: 2px; opacity: .85; position: relative; }
.bar:hover { opacity: 1; }
.bar[title]:hover::after { content: attr(title); position: absolute; bottom: 100%; left: 50%; transform: translateX(-50%); background: var(--text); color: #fff; font-size: .72rem; padding: .2rem .45rem; border-radius: 6px; white-space: nowrap; }
.drag { cursor: grab; color: var(--text-3); user-select: none; padding: 0 .3rem; }
.dragging { opacity: .4; }
.drop-before { box-shadow: inset 0 3px 0 var(--primary-color); }
.editor-block { border: 1px solid var(--line); border-radius: var(--radius); padding: .8rem 1rem; margin: .6rem 0; background: var(--panel); }
.editor-block.lesson { margin-left: 1.5rem; background: #fbfbfd; }
.subnav { display: flex; gap: .4rem; flex-wrap: wrap; margin-bottom: 1.25rem; }
.subnav a { text-decoration: none; padding: .4rem .8rem; border-radius: 999px; background: var(--panel); border: 1px solid var(--line); color: var(--text-2); font-weight: 600; font-size: .88rem; }
.subnav a.active { background: var(--primary-color); color: #fff; border-color: transparent; }
pre.report { background: #1b1d26; color: #e8eaf2; padding: 1rem; border-radius: var(--radius); overflow: auto; font-size: .82rem; }

/* lesson text (Markdown, js/markdown.js) */
.lesson-body > :first-child { margin-top: 0; }
.lesson-body > :last-child { margin-bottom: 0; }
.lesson-body h2, .lesson-body h3, .lesson-body h4, .lesson-body h5, .lesson-body h6 { margin: 1.2rem 0 .5rem; line-height: 1.3; }
.lesson-body h2 { font-size: 1.3rem; } .lesson-body h3 { font-size: 1.12rem; } .lesson-body h4, .lesson-body h5, .lesson-body h6 { font-size: 1rem; }
.lesson-body p, .lesson-body ul, .lesson-body ol, .lesson-body blockquote, .lesson-body pre { margin: 0 0 .85rem; }
.lesson-body ul, .lesson-body ol { padding-left: 1.4rem; }
.lesson-body li + li { margin-top: .25rem; }
.lesson-body img { max-width: 100%; height: auto; border-radius: var(--radius); display: block; margin: .5rem 0; }
.lesson-body blockquote { border-left: 3px solid var(--primary-color); padding: .2rem 0 .2rem 1rem; color: var(--text-2); }
.lesson-body code { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: .9em; background: #f1f2f6; padding: .1em .35em; border-radius: 4px; }
.lesson-body pre { background: #f1f2f6; padding: .8rem 1rem; border-radius: var(--radius); overflow-x: auto; }
.lesson-body pre code { background: none; padding: 0; }
.lesson-body hr { border: 0; border-top: 1px solid var(--line); margin: 1.2rem 0; }
.lesson-body a { word-break: break-word; }
.md-img-off, .md-link-off { color: var(--text-3); font-style: italic; }
.player-media iframe { width: 100%; height: 100%; display: block; border: 0; background: #000; }
.chat-sources { display: flex; flex-direction: column; gap: .2rem; margin-top: .45rem; white-space: normal; }
.chat-sources a { font-size: .85rem; font-weight: 600; }
.md-editor { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: .8rem; align-items: stretch; }
.md-editor textarea { min-height: 12rem; font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: .88rem; }
.md-preview { border: 1px dashed #d5d8e2; border-radius: var(--radius); padding: .7rem .9rem; background: #fff; min-height: 12rem; overflow: auto; }
.md-preview-label { font-size: .75rem; text-transform: uppercase; letter-spacing: .06em; color: var(--text-3); margin: 0 0 .3rem; }
.field-ok { color: var(--ok); } .field-bad { color: var(--err); }
@media (max-width: 760px) { .md-editor { grid-template-columns: 1fr; } }

/* ── Footer, cookie banner, legal pages (js/site-footer.js, js/legal-page.js) ── */
.site-footer { max-width: 1040px; margin: 0 auto; padding: 1.5rem 1.25rem 2.5rem; display: flex; flex-wrap: wrap; gap: .5rem 1.25rem; align-items: center; justify-content: space-between; border-top: 1px solid var(--line); }
.footer-links { display: flex; flex-wrap: wrap; gap: .4rem 1.1rem; align-items: center; font-size: .9rem; }
.footer-links a, .footer-links .linklike { color: var(--text-2); }
.consent-banner { position: fixed; z-index: 90; left: 1rem; right: 1rem; bottom: 1rem; margin: 0 0 0 auto; max-width: 360px; font-size: .85rem; background: var(--panel); color: var(--text); border: 1px solid var(--primary-line); border-radius: var(--radius-lg); box-shadow: var(--shadow); padding: .75rem .9rem; display: grid; gap: .4rem; }
.consent-banner p { margin: 0; color: var(--text-2); }
.consent-actions { display: flex; flex-wrap: wrap; gap: .6rem; align-items: center; }
.consent-btn { min-width: 0; border-color: var(--primary-line); color: var(--primary-strong); }
.legal-text h2 { margin-top: 1.6rem; font-size: 1.15rem; }
.legal-text ul { padding-left: 1.2rem; margin: 0 0 .9rem; }
.legal-text li { margin-bottom: .4rem; }
.site-footer .linklike, .consent-banner .linklike { background: none; border: 0; padding: 0; font: inherit; cursor: pointer; text-decoration: underline; color: var(--text-2); }