:root {
  --bg: #0e1014;
  --bg-2: #14171f;
  --panel: #1a1e29;
  --panel-2: #232838;
  --panel-3: #2c3346;
  --text: #f2f4f8;
  --text-2: #d6dbe5;
  --muted: #aab3c5;
  --muted-2: #7c8599;
  --accent: #7eb8ff;
  --accent-2: #5b9eff;
  --accent-hover: #a8cdff;
  --done: #4ed1a0;
  --watching: #ffc857;
  --border: #2a3047;
  --border-2: #3a4263;
  --danger: #ff6b6b;
}
* { box-sizing: border-box; }
html, body { margin: 0; }
html { background: var(--bg); }
body {
  font: 15px/1.55 -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;
  background: var(--bg); color: var(--text);
  min-height: 100vh;
}
a { color: var(--accent); text-decoration: none; }
a:hover { color: var(--accent-hover); }
h1, h2, h3 { letter-spacing: -0.01em; }

/* ====== shared header ====== */
.app-header {
  padding: 14px 28px;
  border-bottom: 1px solid var(--border);
  display: flex; align-items: center; gap: 18px;
  background: var(--bg-2);
}
.app-header h1 {
  margin: 0; font-size: 14px; font-weight: 600;
  color: var(--text-2); text-transform: uppercase; letter-spacing: 0.1em;
}
.app-header .subtitle { color: var(--muted); font-size: 12px; }
.app-header nav.top { margin-left: auto; display: flex; gap: 6px; align-items: center; }
.app-header nav.top a {
  background: transparent; color: var(--muted); font: inherit;
  padding: 6px 12px; text-decoration: none; border-radius: 6px;
  transition: background 0.1s, color 0.1s;
}
.app-header nav.top a.active { color: var(--text); background: var(--panel); }
.app-header nav.top a:hover { color: var(--text); }
.app-header .me {
  color: var(--muted); font-size: 12px; margin-left: 18px;
  display: flex; gap: 10px; align-items: center;
}
.app-header .me a { color: var(--muted); }
.app-header .me a:hover { color: var(--text); }

/* ====== signin/magic card ====== */
.center-card { min-height: 100vh; display: grid; place-items: center; padding: 24px; }
.card {
  background: var(--panel); border: 1px solid var(--border);
  border-radius: 12px; padding: 28px 32px; max-width: 400px; width: 100%;
}
.card h1 { margin: 0 0 6px; font-size: 20px; }
.card p { color: var(--muted); margin: 4px 0 18px; font-size: 13px; }
.card label { display: block; font-size: 12px; color: var(--muted); margin-bottom: 6px; }
.card input[type=email], .card input[type=text] {
  width: 100%; padding: 10px 12px; background: var(--bg); color: var(--text);
  border: 1px solid var(--border); border-radius: 7px; font: inherit;
}
.card input:focus { outline: 2px solid var(--accent); outline-offset: -1px; border-color: var(--accent); }
.card button.primary {
  margin-top: 16px; padding: 10px 16px; background: var(--accent); color: #0a1220;
  border: 0; border-radius: 7px; font: inherit; font-weight: 600; cursor: pointer;
}
.card button.primary:hover { background: var(--accent-hover); }
.card .msg { margin-top: 14px; font-size: 13px; }
.card .msg.ok  { color: var(--done); }
.card .msg.err { color: var(--danger); }

/* ====== multi-page shell ====== */
body.page { display: block; height: auto; min-height: 100vh; }
.page-main { padding: 32px 28px 48px; max-width: 1120px; margin: 0 auto; }
.crumb {
  color: var(--muted); margin: 0 0 18px; font-size: 13px;
}
.crumb a { color: var(--muted); }
.crumb a:hover { color: var(--text); }
.back-btn {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 7px 14px; background: var(--panel); border: 1px solid var(--border);
  border-radius: 7px; color: var(--text-2); font-size: 13px; text-decoration: none;
}
.back-btn:hover { background: var(--panel-2); color: var(--text); text-decoration: none; }

/* ====== courses index ====== */
.library-hero {
  padding: 40px 0 28px; border-bottom: 1px solid var(--border); margin-bottom: 28px;
}
.library-hero h1 {
  margin: 0 0 10px; font-size: 32px; font-weight: 600; letter-spacing: -0.02em;
}
.library-hero .lead { color: var(--muted); font-size: 15px; max-width: 600px; margin: 0; }
.library-stats { display: flex; gap: 28px; margin-top: 18px; }
.library-stats .stat { color: var(--muted); font-size: 13px; }
.library-stats .stat b { color: var(--text); font-size: 18px; font-weight: 600; display: block; }
.section-label {
  font-size: 11px; color: var(--muted-2); text-transform: uppercase; letter-spacing: 0.12em;
  font-weight: 600; margin: 0 0 14px;
}
.course-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(360px, 1fr));
  gap: 18px;
}
.course-card {
  display: block; overflow: hidden;
  background: var(--panel); border: 1px solid var(--border); border-radius: 12px;
  color: var(--text); text-decoration: none;
  transition: transform 0.12s, border-color 0.12s;
}
.course-card:hover { border-color: var(--accent); transform: translateY(-2px); text-decoration: none; }
.course-cover {
  height: 130px;
  background:
    radial-gradient(circle at 18% 18%, rgba(126,184,255,0.22), transparent 55%),
    radial-gradient(circle at 82% 82%, rgba(78,209,160,0.18), transparent 55%),
    linear-gradient(135deg, #1c2336, #2c3650);
  display: grid; place-items: center;
  color: var(--text); position: relative;
}
.course-cover .cover-label {
  font-size: 11px; letter-spacing: 0.18em; text-transform: uppercase;
  color: var(--muted-2); font-weight: 600;
}
.course-cover .cover-title {
  font-size: 22px; font-weight: 600; margin-top: 6px; letter-spacing: -0.01em;
}
.course-card-body { padding: 18px 22px 20px; }
.course-card h2 { margin: 0 0 4px; font-size: 17px; font-weight: 600; }
.course-card .course-source { margin: 0 0 12px; color: var(--muted); font-size: 12px; }
.course-card .course-blurb { margin: 0 0 16px; color: var(--text-2); font-size: 13.5px; line-height: 1.55; }
.course-card .bar { height: 6px; border-radius: 3px; }
.course-card .course-stat-text { margin-top: 8px; color: var(--muted); font-size: 12px; }

/* ====== course detail header ====== */
.course-header {
  display: grid; grid-template-columns: 180px 1fr; gap: 28px;
  padding: 24px 0 28px; border-bottom: 1px solid var(--border); margin-bottom: 28px;
}
.course-header .cover {
  height: 160px; border-radius: 12px;
  background:
    radial-gradient(circle at 22% 22%, rgba(126,184,255,0.22), transparent 55%),
    radial-gradient(circle at 80% 80%, rgba(78,209,160,0.18), transparent 55%),
    linear-gradient(135deg, #1c2336, #2c3650);
  display: grid; place-items: center; text-align: center;
}
.course-header .cover .badge-num { font-size: 32px; font-weight: 700; color: var(--text); }
.course-header .cover .badge-lbl { font-size: 11px; color: var(--muted); text-transform: uppercase; letter-spacing: 0.12em; }
.course-header h1 { margin: 0; font-size: 28px; font-weight: 600; letter-spacing: -0.02em; }
.course-header .source { color: var(--muted); font-size: 13px; margin: 6px 0 12px; }
.course-header .blurb { color: var(--text-2); font-size: 14px; line-height: 1.6; max-width: 700px; margin: 0 0 16px; }
.course-header .stats-row { display: flex; gap: 26px; }
.course-header .stat { color: var(--muted); font-size: 12px; }
.course-header .stat b { color: var(--text); font-size: 16px; font-weight: 600; display: block; }

/* ====== next-up CTA ====== */
.next-up {
  display: grid; grid-template-columns: 1fr auto; gap: 24px; align-items: center;
  padding: 22px 26px; margin: 0 0 28px;
  background: linear-gradient(135deg, rgba(126,184,255,0.10), rgba(78,209,160,0.06)),
              var(--panel);
  border: 1px solid var(--accent-2); border-radius: 12px;
  color: var(--text); text-decoration: none;
  transition: border-color 0.1s, transform 0.12s;
}
.next-up:hover { border-color: var(--accent-hover); transform: translateY(-1px); text-decoration: none; }
.next-up.complete { border-color: var(--done); cursor: default; }
.next-up:hover.complete { transform: none; }
.next-up-label {
  font-size: 11px; color: var(--accent); text-transform: uppercase; letter-spacing: 0.14em;
  font-weight: 700; margin-bottom: 6px;
}
.next-up.complete .next-up-label { color: var(--done); }
.next-up-title { font-size: 17px; font-weight: 600; color: var(--text); }
.next-up-hint { margin-top: 8px; color: var(--muted); font-size: 13px; }
.next-up-btn {
  background: var(--accent); color: #0a1220;
  padding: 11px 22px; border-radius: 8px;
  font-size: 14px; font-weight: 700; letter-spacing: 0.01em;
}
.next-up:hover .next-up-btn { background: var(--accent-hover); }

/* ====== themes accordion ====== */
.themes-stack { display: flex; flex-direction: column; gap: 10px; }
.theme-block { background: var(--panel); border: 1px solid var(--border); border-radius: 10px; overflow: hidden; }
.theme-block.expanded { border-color: var(--border-2); }
.theme-row {
  display: grid; grid-template-columns: 36px 1fr 110px 160px;
  gap: 18px; align-items: center;
  padding: 16px 20px;
  cursor: pointer; user-select: none;
  transition: background 0.1s;
}
.theme-row:hover { background: var(--panel-2); }
.theme-block.expanded .theme-row { border-bottom: 1px solid var(--border); background: var(--panel-2); }
.theme-row .num {
  width: 30px; height: 30px; border-radius: 50%;
  background: var(--bg); border: 1px solid var(--border-2);
  display: grid; place-items: center;
  font-weight: 700; color: var(--accent); font-size: 13px;
}
.theme-row .caret { color: var(--muted); margin-right: 4px; }
.theme-row .title { font-weight: 600; font-size: 15px; color: var(--text); }
.theme-row .goal { color: var(--muted); font-size: 12.5px; margin-top: 4px; }
.theme-row .pct { color: var(--muted); font-size: 13px; }
.theme-row .pct b { color: var(--text); font-weight: 600; }
.bar { height: 8px; background: var(--bg); border-radius: 4px; overflow: hidden; }
.bar > span { display: block; height: 100%; background: var(--done); border-radius: 4px; }

.theme-body { padding: 6px 0 8px; background: var(--panel); }
.video-card {
  display: grid; grid-template-columns: 36px 1fr auto;
  gap: 16px; align-items: start;
  padding: 16px 20px; border-top: 1px solid var(--border);
}
.video-card:first-child { border-top: 0; }
.video-card .v-status {
  width: 28px; height: 28px; border-radius: 50%;
  display: grid; place-items: center;
  background: var(--bg); border: 1px solid var(--border-2);
  color: var(--muted); font-size: 14px;
}
.video-card.watched  .v-status { color: var(--done); border-color: var(--done); }
.video-card.watching .v-status { color: var(--watching); border-color: var(--watching); }
.video-card .v-meta { color: var(--muted-2); font-size: 11px; text-transform: uppercase; letter-spacing: 0.08em; margin-bottom: 4px; }
.video-card h3 { margin: 0 0 8px; font-size: 15px; font-weight: 600; color: var(--text); }
.video-card.watched h3 { color: var(--muted); }
.video-card .takeaways { margin: 6px 0 0; padding-left: 18px; color: var(--text-2); font-size: 12.5px; line-height: 1.6; }
.video-card .takeaways li { margin-bottom: 2px; }
.play-btn {
  background: var(--accent); color: #0a1220 !important;
  padding: 8px 16px; border-radius: 7px;
  font-size: 13px; font-weight: 700; letter-spacing: 0.01em;
  text-decoration: none !important; display: inline-block; white-space: nowrap;
}
.play-btn:hover { background: var(--accent-hover); }
.theme-collapse {
  display: block; margin: 6px 18px 8px auto;
  background: transparent; color: var(--muted);
  border: 1px solid var(--border); border-radius: 6px;
  padding: 4px 12px; font: inherit; font-size: 12px; cursor: pointer;
}
.theme-collapse:hover { color: var(--text); background: var(--panel-2); }

/* ====== player page ====== */
.play-layout {
  display: grid; grid-template-columns: 1fr 340px;
  max-width: 1320px; margin: 0 auto;
}
.play-main { padding: 24px 28px 48px; }
.play-side {
  padding: 24px 18px;
  border-left: 1px solid var(--border);
  background: var(--bg-2);
  min-height: calc(100vh - 60px);
}
.play-side h3 {
  margin: 0 0 14px; padding: 0 6px;
  font-size: 11px; color: var(--muted-2);
  text-transform: uppercase; letter-spacing: 0.12em; font-weight: 700;
}
.play-side .qitem {
  display: grid; grid-template-columns: 32px 1fr;
  gap: 10px; padding: 10px 12px; margin-bottom: 2px;
  border-left: 3px solid transparent; border-radius: 6px;
  text-decoration: none; color: var(--text-2);
  transition: background 0.1s;
}
.play-side .qitem:hover { background: var(--panel); text-decoration: none; }
.play-side .qitem.active {
  background: var(--panel-2); border-left-color: var(--accent); color: var(--text);
}
.play-side .qitem.watched .qtitle { color: var(--muted); }
.play-side .qitem .status {
  display: grid; place-items: center; height: 22px; width: 22px;
  border-radius: 50%; background: var(--bg); border: 1px solid var(--border-2);
  font-size: 11px; color: var(--muted); margin-top: 2px;
}
.play-side .qitem.watched  .status { color: var(--done); border-color: var(--done); }
.play-side .qitem.watching .status { color: var(--watching); border-color: var(--watching); }
.play-side .qitem .qtitle { font-size: 13px; font-weight: 500; line-height: 1.4; }
.play-side .qitem .qord { color: var(--muted-2); font-size: 11px; margin-top: 3px; letter-spacing: 0.04em; }

.play-topbar { display: flex; align-items: center; gap: 14px; margin-bottom: 18px; }
.play-topbar .crumb { margin: 0; }
.player-wrap {
  position: relative; width: 100%; aspect-ratio: 16/9; background: #000;
  border-radius: 10px; overflow: hidden; border: 1px solid var(--border);
}
.player-wrap iframe { position: absolute; inset: 0; width: 100%; height: 100%; border: 0; }
.player-empty { display: grid; place-items: center; height: 100%; color: var(--muted); font-size: 14px; }

.np-meta-row {
  margin: 18px 0 8px;
  color: var(--muted-2); font-size: 12px;
  text-transform: uppercase; letter-spacing: 0.1em; font-weight: 600;
}
.np-title { margin: 0 0 14px; font-size: 24px; font-weight: 600; letter-spacing: -0.02em; }
.np-takeaways { color: var(--text-2); padding-left: 20px; margin: 16px 0; font-size: 14px; line-height: 1.65; }
.np-takeaways li { margin-bottom: 4px; }

/* pill status toggle */
.status-pill {
  display: inline-flex; background: var(--panel); border: 1px solid var(--border);
  border-radius: 9px; padding: 4px; margin-top: 8px;
}
.status-pill button {
  background: transparent; color: var(--muted); border: 0;
  padding: 7px 16px; font: inherit; font-size: 13px; font-weight: 500;
  border-radius: 6px; cursor: pointer; transition: all 0.1s;
}
.status-pill button:hover { color: var(--text); }
.status-pill button.active.unwatched { background: var(--panel-3); color: var(--text); }
.status-pill button.active.watching { background: var(--watching); color: #2a1d00; }
.status-pill button.active.watched  { background: var(--done); color: #07261c; }

@media (max-width: 900px) {
  .play-layout { grid-template-columns: 1fr; }
  .play-side { border-left: 0; border-top: 1px solid var(--border); min-height: auto; }
  .course-header { grid-template-columns: 1fr; }
  .course-header .cover { height: 110px; }
}

/* ====== admin ====== */
.admin-pane h2 { font-size: 13px; color: var(--muted-2); text-transform: uppercase; letter-spacing: 0.1em; margin: 0 0 14px; font-weight: 700; }
.courses-list { display: flex; flex-direction: column; gap: 8px; margin-bottom: 8px; }
.course-line {
  display: flex; align-items: center; justify-content: space-between;
  padding: 12px 16px; background: var(--panel); border: 1px solid var(--border); border-radius: 8px;
}
.course-line-title { font-weight: 600; }
.course-line-sub { color: var(--muted); font-size: 12px; margin-top: 2px; }
.admin-add { display: flex; gap: 8px; margin-bottom: 22px; }
.admin-add input, .admin-add select {
  flex: 1; padding: 9px 12px; background: var(--bg); color: var(--text);
  border: 1px solid var(--border); border-radius: 7px; font: inherit;
}
.admin-add select { flex: 0 0 110px; }
.admin-add button, .users-table button {
  background: var(--panel-2); color: var(--text-2); border: 1px solid var(--border-2);
  padding: 7px 12px; border-radius: 7px; font: inherit; cursor: pointer;
}
.admin-add button:hover, .users-table button:hover { background: var(--panel-3); color: var(--text); }
.admin-add button.primary, .users-table button.primary {
  background: var(--accent); color: #0a1220; border-color: var(--accent); font-weight: 700;
}
.users-table { width: 100%; border-collapse: collapse; background: var(--panel); border: 1px solid var(--border); border-radius: 10px; overflow: hidden; }
.users-table th, .users-table td { padding: 11px 14px; text-align: left; border-bottom: 1px solid var(--border); font-size: 13px; }
.users-table th { font-size: 11px; color: var(--muted); text-transform: uppercase; letter-spacing: 0.08em; }
.users-table tr:last-child td { border-bottom: 0; }
.users-table td.actions { white-space: nowrap; }
.users-table td.actions button { margin-right: 4px; font-size: 12px; padding: 5px 9px; }
.badge { display: inline-block; padding: 2px 8px; border-radius: 4px; font-size: 11px; background: var(--bg); color: var(--muted); }
.badge.role-admin { color: var(--accent); }
.badge.status-disabled { color: var(--danger); }
.msg { font-size: 13px; }
.msg.ok  { color: var(--done); }
.msg.err { color: var(--danger); }

.hidden { display: none !important; }

/* ====== curate page ====== */
.curate-section {
  background: var(--panel); border: 1px solid var(--border); border-radius: 8px;
  margin-bottom: 10px; padding: 10px 16px;
}
.curate-section summary { cursor: pointer; font-weight: 600; padding: 6px 0; user-select: none; }
.curate-form { display: flex; flex-direction: column; gap: 10px; margin-top: 12px; }
.curate-form label { font-size: 12px; color: var(--muted); display: flex; flex-direction: column; gap: 4px; }
.curate-form input, .curate-form textarea {
  padding: 8px 10px; background: var(--bg); color: var(--text);
  border: 1px solid var(--border); border-radius: 6px; font: inherit;
}
.curate-form textarea { resize: vertical; min-height: 60px; font-family: inherit; }
.curate-form button { align-self: flex-start; padding: 8px 14px; }

.curate-theme {
  background: var(--panel); border: 1px solid var(--border); border-radius: 8px;
  padding: 14px 16px; margin-bottom: 12px;
}
.curate-theme-head {
  display: flex; align-items: center; gap: 12px; justify-content: space-between; margin-bottom: 8px;
}
.theme-row-meta { display: flex; align-items: center; gap: 10px; flex: 1; }
.theme-row-meta .num {
  width: 28px; height: 28px; border-radius: 50%;
  background: var(--bg); border: 1px solid var(--border-2);
  display: grid; place-items: center;
  font-weight: 700; color: var(--accent); font-size: 12px;
}
.theme-title-input {
  flex: 1; padding: 8px 10px;
  background: var(--bg); color: var(--text);
  border: 1px solid var(--border); border-radius: 6px;
  font: inherit; font-weight: 600;
}
.theme-goal-input {
  width: 100%; padding: 8px 10px;
  background: var(--bg); color: var(--text); border: 1px solid var(--border); border-radius: 6px;
  font: inherit; font-size: 13px; resize: vertical; margin-bottom: 10px;
}
.theme-row-actions { display: flex; gap: 6px; }
.theme-row-actions button {
  background: var(--panel-2); color: var(--text-2); border: 1px solid var(--border-2);
  padding: 6px 10px; border-radius: 6px; font: inherit; font-size: 12px; cursor: pointer;
}
.theme-row-actions button:hover:not(:disabled) { background: var(--panel-3); color: var(--text); }
.theme-row-actions button:disabled { opacity: 0.4; cursor: not-allowed; }

.curate-videos { list-style: none; padding: 0; margin: 0; }
.curate-video {
  display: grid; grid-template-columns: 36px 1fr 200px;
  gap: 12px; padding: 12px 0; border-top: 1px solid var(--border);
  align-items: start;
}
.curate-video:first-child { border-top: 1px solid var(--border-2); margin-top: 6px; }
.cv-ord { color: var(--muted-2); font-size: 12px; padding-top: 8px; }
.cv-body { display: flex; flex-direction: column; gap: 6px; }
.cv-title {
  font-size: 14px; font-weight: 500;
  padding: 7px 10px; background: var(--bg); color: var(--text);
  border: 1px solid var(--border); border-radius: 6px; font-family: inherit;
}
.cv-takeaways { display: flex; flex-direction: column; gap: 4px; }
.cv-tk, .cv-yt {
  padding: 6px 10px; background: var(--bg); color: var(--text-2);
  border: 1px solid var(--border); border-radius: 6px; font: inherit; font-size: 12.5px;
}
.cv-actions { display: flex; flex-direction: column; gap: 6px; }
.cv-move-theme {
  padding: 6px 8px; background: var(--bg); color: var(--text);
  border: 1px solid var(--border); border-radius: 6px; font: inherit; font-size: 12px;
}
.cv-row { display: flex; gap: 4px; }
.cv-row button { flex: 1; }
.cv-actions button {
  background: var(--panel-2); color: var(--text-2);
  border: 1px solid var(--border-2); padding: 6px 8px;
  border-radius: 6px; font: inherit; font-size: 12px; cursor: pointer;
}
.cv-actions button:hover:not(:disabled) { background: var(--panel-3); color: var(--text); }
.cv-actions button:disabled { opacity: 0.4; cursor: not-allowed; }
.cv-actions button.primary { background: var(--accent); color: #0a1220; border-color: var(--accent); font-weight: 600; }
.cv-actions button.primary:hover { background: var(--accent-hover); }
.curate-empty { color: var(--muted); font-style: italic; padding: 12px 0; }