@import url('https://fonts.googleapis.com/css2?family=Fraunces:ital,wght@0,400;0,600;1,400&family=Work+Sans:wght@400;500;600&display=swap');

:root {
  --ink: #121210;
  --bg: #121210;
  --surface: #121210;
  --paper: #FBF8F1;
  --cream: #F3EED9;
  --line: #d8cfb4;
  --green: #2F6E4E;
  --green-deep: #1E4936;
  --green-soft: #DDEBE1;
  --gold: #B98A3D;
  --red-dim: #9C4A3C;
  --text-on-dark: #F3EED9;
  --text-muted: #8b8577;
  --input-bg: #1c1c19;
  --input-border: #3a382f;
  --row-line: #2a2924;
  --hover-bg: #1a1a17;
  --link-color: #7FCBA0;
  --radius: 2px;
}

/* ---------- Light / editorial theme (used on pages with body.theme-light) ---------- */
body.theme-light {
  --bg: #FFFFFF;
  --surface: #FFFFFF;
  --line: #E6E0CF;
  --text-on-dark: #1B1B18;
  --text-muted: #7a7364;
  --input-bg: #F7F4EA;
  --input-border: #DCD5BE;
  --row-line: #EBE6D8;
  --hover-bg: #F7F4EA;
  --link-color: #1E7A46;
}

* { box-sizing: border-box; }

/* ---------- Reset ligero (normalización entre navegadores/dispositivos) ---------- */
html { -webkit-text-size-adjust: 100%; text-size-adjust: 100%; }
body, h1, h2, h3, h4, p, figure, blockquote, dl, dd { margin: 0; }
ul, ol { margin: 0; padding: 0; list-style: none; }
img, picture, svg, video { display: block; max-width: 100%; }
button, input, textarea, select { font: inherit; color: inherit; }
a { color: inherit; }
table { border-collapse: collapse; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text-on-dark);
  font-family: 'Work Sans', sans-serif;
  font-size: 16px;
  line-height: 1.5;
}

h1, h2, h3, .display {
  font-family: 'Fraunces', serif;
  font-weight: 600;
  margin: 0;
  letter-spacing: -0.01em;
}

a { color: var(--green); }

/* ---------- Banner (matches the existing Notion header) ---------- */
.brand-banner {
  background: var(--cream);
  color: var(--ink);
  padding: 28px 32px;
  border-bottom: 3px solid var(--green-deep);
}
.brand-banner .brand-row {
  display: flex;
  align-items: center;
  gap: 18px;
  flex-wrap: wrap;
  max-width: 960px;
  margin: 0 auto;
}
.brand-banner .logo-img {
  height: 64px;
  width: auto;
  display: block;
}
.brand-banner .by {
  font-size: 0.95rem;
  color: var(--text-muted);
}

/* ---------- Page shell ---------- */
.page {
  max-width: 960px;
  margin: 0 auto;
  padding: 40px 32px 80px;
}

.eyebrow-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 36px;
  gap: 16px;
  flex-wrap: wrap;
}

.who {
  color: var(--text-muted);
  font-size: 0.9rem;
}
.who strong { color: var(--text-on-dark); }

/* ---------- Buttons ---------- */
button, .btn {
  font-family: 'Work Sans', sans-serif;
  font-weight: 600;
  font-size: 0.9rem;
  padding: 10px 18px;
  border-radius: var(--radius);
  border: 1px solid var(--green);
  background: transparent;
  color: var(--green-soft);
  cursor: pointer;
  transition: background 0.15s ease, color 0.15s ease;
}
button:hover, .btn:hover { background: var(--green); color: var(--paper); }
button.primary, .btn.primary { background: var(--green); color: var(--paper); }
button.primary:hover, .btn.primary:hover { background: var(--green-deep); border-color: var(--green-deep); }
button.ghost, .btn.ghost { border-color: var(--line); color: var(--text-muted); }
button.ghost:hover, .btn.ghost:hover { background: var(--line); color: var(--ink); }
button.danger, .btn.danger { border-color: var(--red-dim); color: var(--red-dim); }
button.danger:hover, .btn.danger:hover { background: var(--red-dim); color: var(--paper); }
button:disabled { opacity: 0.5; cursor: not-allowed; }

/* ---------- Forms ---------- */
label {
  display: block;
  font-size: 0.82rem;
  color: var(--text-muted);
  margin-bottom: 6px;
}
input, select, textarea {
  width: 100%;
  font-family: 'Work Sans', sans-serif;
  font-size: 0.95rem;
  padding: 10px 12px;
  background: var(--input-bg);
  border: 1px solid var(--input-border);
  border-radius: var(--radius);
  color: var(--text-on-dark);
}
input:focus, select:focus, textarea:focus {
  outline: 2px solid var(--green);
  outline-offset: 1px;
}
.field { margin-bottom: 16px; }
.field-row { display: flex; gap: 16px; flex-wrap: wrap; }
.field-row .field { flex: 1; min-width: 160px; }

/* ---------- Login card ---------- */
.login-wrap {
  min-height: calc(100vh - 140px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 40px 20px;
}
.login-card {
  width: 100%;
  max-width: 380px;
  border: 1px solid var(--input-border);
  padding: 32px;
}
.login-card h2 { font-size: 1.4rem; margin-bottom: 6px; }
.login-card .sub { color: var(--text-muted); font-size: 0.88rem; margin-bottom: 24px; }
.error-msg {
  color: var(--red-dim);
  font-size: 0.85rem;
  margin-top: 10px;
  min-height: 1.2em;
}
.info-msg {
  color: var(--green-soft);
  background: var(--green-deep);
  padding: 10px 12px;
  font-size: 0.85rem;
  margin-top: 10px;
  border-radius: var(--radius);
}

/* ---------- Section blocks (ledger style, no cards) ---------- */
.section { margin-bottom: 48px; }
.section-head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  border-bottom: 1px solid var(--line);
  padding-bottom: 10px;
  margin-bottom: 18px;
  gap: 12px;
  flex-wrap: wrap;
}
.section-head h2 { font-size: 1.3rem; }
.section-head .count { color: var(--text-muted); font-size: 0.85rem; }

/* ---------- Ledger list (tasks / students / materials) ---------- */
.ledger { border-top: 1px solid var(--line); }
.ledger-row {
  display: grid;
  grid-template-columns: 1fr auto auto auto;
  gap: 16px;
  align-items: center;
  padding: 14px 4px;
  border-bottom: 1px solid var(--row-line);
}
.ledger-row.head {
  border-bottom: 1px solid var(--line);
  color: var(--text-muted);
  font-size: 0.78rem;
  text-transform: none;
  padding-bottom: 8px;
}
.ledger-row .title { font-weight: 500; }
.ledger-row .meta { font-size: 0.85rem; color: var(--text-muted); }
.ledger-row.clickable { cursor: pointer; }
.ledger-row.clickable:hover { background: var(--hover-bg); }

.badge {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 600;
  white-space: nowrap;
}
.badge.pendiente { background: #4a3320; color: #E8B978; }
.badge.progreso { background: #2a3d4a; color: #8FC1E8; }
.badge.entregada { background: #1e4936; color: #A9D9BE; }
.badge.calificada { background: var(--green-deep); color: var(--green-soft); }

.empty-state {
  padding: 28px 4px;
  color: var(--text-muted);
  font-size: 0.9rem;
  border-bottom: 1px solid var(--row-line);
}

/* ---------- Modal ---------- */
.modal-backdrop {
  position: fixed; inset: 0;
  background: rgba(0,0,0,0.6);
  display: flex; align-items: center; justify-content: center;
  padding: 20px;
  z-index: 50;
}
.modal {
  background: var(--surface);
  border: 1px solid var(--line);
  padding: 28px;
  width: 100%;
  max-width: 440px;
  max-height: 90vh;
  overflow-y: auto;
}
.modal h3 { margin-bottom: 20px; }
.modal-actions { display: flex; justify-content: flex-end; gap: 10px; margin-top: 22px; }
.hidden { display: none !important; }

.two-col {
  display: grid;
  grid-template-columns: 260px 1fr;
  gap: 40px;
  align-items: start;
}
@media (max-width: 720px) {
  .two-col { grid-template-columns: 1fr; }
  .ledger-row { grid-template-columns: 1fr; row-gap: 6px; }
  .brand-banner .logo-img { height: 46px; }
}

.side-list { border-top: 1px solid var(--line); }
.side-item {
  padding: 12px 4px;
  border-bottom: 1px solid var(--row-line);
  cursor: pointer;
  font-size: 0.92rem;
}
.side-item:hover { background: var(--hover-bg); }
.side-item.active { border-left: 3px solid var(--green); padding-left: 8px; background: var(--hover-bg); }
.side-item .email { display: block; font-size: 0.78rem; color: var(--text-muted); }

.tag-link {
  font-size: 0.82rem;
  text-decoration: underline;
  color: var(--link-color);
  font-weight: 600;
}
.tag-link:hover { opacity: 0.8; }

.loading-text { color: var(--text-muted); font-size: 0.9rem; padding: 20px 4px; }

/* ---------- Course folder cards (Notion-style gallery) ---------- */
.folder-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
  margin-bottom: 12px;
}
@media (min-width: 620px) {
  .folder-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 1000px) {
  .folder-grid { grid-template-columns: repeat(4, 1fr); }
}
.folder-block { display: flex; flex-direction: column; }
.folder-card {
  position: relative;
  height: 130px;
  border-radius: 6px;
  overflow: hidden;
  cursor: pointer;
  border: 1px solid var(--row-line);
  transition: transform 0.12s ease, border-color 0.12s ease;
}
.folder-card:hover { transform: translateY(-2px); border-color: var(--green); }
.folder-cover {
  position: absolute; inset: 0;
  display: flex; align-items: center; justify-content: center;
}
.folder-cover .folder-icon { font-size: 2.4rem; opacity: 0.85; }
.cover-guias_apuntes { background: linear-gradient(135deg, #1E4936, #2F6E4E); }
.cover-ejercicios { background: linear-gradient(135deg, #7a5a1e, #B98A3D); }
.cover-simulacro { background: linear-gradient(135deg, #3a2f4a, #6b4a8a); }
.cover-grabaciones { background: linear-gradient(135deg, #1c1c19, #3a382f); }
.folder-caption {
  position: absolute; left: 0; right: 0; bottom: 0;
  background: rgba(18,18,16,0.78);
  color: var(--text-on-dark);
  padding: 8px 10px;
  font-size: 0.85rem;
  font-weight: 500;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 8px;
}
.folder-caption .folder-count { font-size: 0.72rem; color: var(--text-muted); white-space: nowrap; }
.folder-files {
  margin-top: 10px;
  border-top: 1px solid var(--line);
}
.folder-add-row { margin-top: 8px; text-align: right; }

@media (min-width: 720px) {
  .quicklinks-grid { grid-template-columns: repeat(3, 1fr); }
}

/* ---------- Editorial hero (photo header) ---------- */
.hero {
  position: relative;
  width: 100%;
  height: 78vh;
  min-height: 420px;
  max-height: 640px;
  overflow: hidden;
  background: #1a1a17;
}
.hero img {
  width: 100%;
  height: 120%;
  position: absolute;
  top: -10%;
  left: 0;
  object-fit: cover;
  object-position: center 22%;
  display: block;
  will-change: transform;
}
.hero-overlay {
  position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(10,10,8,0.35) 0%, rgba(10,10,8,0.1) 35%, rgba(10,10,8,0.75) 100%);
}
.hero-nav {
  position: absolute; top: 0; left: 0; right: 0;
  display: flex; justify-content: space-between; align-items: center;
  padding: 28px 40px;
}
.hero-nav .logo-img { height: 52px; width: auto; }
.hero-nav button {
  border-color: rgba(255,255,255,0.55);
  color: var(--paper);
}
.hero-nav button:hover { background: rgba(255,255,255,0.15); }
.hero-content {
  position: absolute; left: 0; right: 0; bottom: 56px;
  text-align: center;
  padding: 0 24px;
  color: var(--paper);
}
.hero-content .eyebrow {
  font-family: 'Work Sans', sans-serif;
  font-size: 0.82rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--green-soft);
  margin-bottom: 10px;
}
.hero-content h1 {
  font-family: 'Fraunces', serif;
  font-weight: 600;
  font-size: clamp(2.2rem, 6vw, 4rem);
  margin-bottom: 14px;
  line-height: 1.05;
}
.hero-content p {
  max-width: 560px;
  margin: 0 auto;
  font-size: 1rem;
  color: rgba(251,248,241,0.88);
  line-height: 1.5;
}
@media (max-width: 720px) {
  .hero { height: 62vh; min-height: 360px; }
  .hero-nav { padding: 20px 20px; }
  .hero-nav .logo-img { height: 40px; }
}

/* ---------- Quick-access tiles (Arena Roja–style editorial cards) ---------- */
.quicklinks-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 18px;
}
.quicklink-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  padding: 36px 20px;
  border: 1px solid var(--line);
  text-decoration: none;
  color: var(--text-on-dark);
  text-align: center;
  transition: transform 0.15s ease, border-color 0.15s ease, box-shadow 0.15s ease;
}
.quicklink-card:hover {
  transform: translateY(-3px);
  border-color: var(--green);
  box-shadow: 0 10px 24px rgba(0,0,0,0.07);
}
.quicklink-icon { font-size: 2rem; line-height: 1; }
.quicklink-label {
  font-family: 'Fraunces', serif;
  font-weight: 600;
  font-size: 1rem;
  letter-spacing: 0.01em;
}
.quicklink-sub {
  font-size: 0.78rem;
  color: var(--text-muted);
  margin-top: -6px;
}

/* ---------- Top nav (Arena Roja–style: logo centered, links flanking) ---------- */
.top-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 20px 40px;
  background: #FFFFFF;
  border-bottom: 1px solid var(--line);
  position: sticky;
  top: 0;
  z-index: 20;
}
.top-nav-logo { height: 40px; width: auto; }
.top-nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
  flex: 1;
}
.top-nav-right { justify-content: flex-end; }
.top-nav-links a {
  font-family: 'Work Sans', sans-serif;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-on-dark);
  text-decoration: none;
  white-space: nowrap;
}
.top-nav-links a:hover { color: var(--green); }
.top-nav-links a { margin-right: 24px; }
.top-nav-links a:last-child { margin-right: 0; }
.top-nav-right button.ghost {
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 8px 14px;
}
@media (max-width: 820px) {
  .top-nav { padding: 16px 20px; flex-wrap: wrap; gap: 12px; }
  .top-nav-links { flex: none; gap: 16px; }
  .top-nav-logo { height: 32px; order: -1; width: 100%; margin-bottom: 4px; }
  .top-nav-left, .top-nav-right { width: 100%; justify-content: center; flex-wrap: wrap; }
}

/* ---------- Clean nav: primary links + "Más" dropdown + book-sticker hamburger ---------- */
.nav-more { position: relative; }
.nav-more > span {
  font-family: 'Work Sans', sans-serif;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-on-dark);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 4px;
}
.nav-more > span:hover { color: var(--green); }
.nav-more-panel {
  position: absolute;
  top: 100%; left: 50%;
  transform: translateX(-50%);
  background: #fff;
  border: 1px solid var(--line);
  box-shadow: 0 16px 32px rgba(0,0,0,0.1);
  padding: 10px 0;
  min-width: 190px;
  margin-top: 14px;
  display: none;
  z-index: 30;
}
.nav-more:hover .nav-more-panel,
.nav-more:focus-within .nav-more-panel { display: block; }
.nav-more-panel a {
  display: block;
  padding: 10px 20px;
  font-size: 0.82rem;
  color: var(--text-on-dark);
  text-decoration: none;
  letter-spacing: 0.02em;
}
.nav-more-panel a:hover { background: var(--hover-bg); color: var(--green); }

.book-toggle {
  display: none;
  position: relative;
  cursor: pointer;
  width: 40px; height: 32px;
  align-items: center;
  justify-content: center;
}
.book-toggle .spine {
  position: absolute;
  height: 7px;
  border-radius: 3px;
  transition: transform 0.25s ease;
}
.book-toggle .spine:nth-child(1) { width: 30px; top: 4px;  background: var(--green-deep); }
.book-toggle .spine:nth-child(2) { width: 22px; top: 14px; background: var(--gold); left: 4px; }
.book-toggle .spine:nth-child(3) { width: 30px; top: 24px; background: var(--green); }
.book-toggle:hover .spine:nth-child(1) { transform: translateX(2px); }
.book-toggle:hover .spine:nth-child(2) { transform: translateX(-2px); }
.book-toggle:hover .spine:nth-child(3) { transform: translateX(2px); }

.book-menu-panel {
  position: absolute;
  top: 100%; right: 20px;
  background: #fff;
  border: 1px solid var(--line);
  box-shadow: 0 16px 32px rgba(0,0,0,0.12);
  padding: 10px 0;
  min-width: 220px;
  display: none;
  z-index: 30;
}
.book-menu-panel.show { display: block; }
.book-menu-panel a {
  display: block;
  padding: 11px 22px;
  font-size: 0.85rem;
  color: var(--text-on-dark);
  text-decoration: none;
}
.book-menu-panel a:hover { background: var(--hover-bg); color: var(--green); }

@media (max-width: 860px) {
  .top-nav-left, .top-nav-right .nav-desktop-only { display: none; }
  .book-toggle { display: flex; }
}

/* ---------- Scroll reveal (fade + rise into view) ---------- */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}
.reveal.visible { opacity: 1; transform: translateY(0); }
.reveal-1.visible { transition-delay: 0.08s; }
.reveal-2.visible { transition-delay: 0.16s; }
.reveal-3.visible { transition-delay: 0.24s; }

@keyframes heroFadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}
@keyframes heroContentRise {
  from { opacity: 0; transform: translateY(18px); }
  to { opacity: 1; transform: translateY(0); }
}
.hero { animation: heroFadeIn 1s ease; }
.hero-content { animation: heroContentRise 1s ease 0.15s both; }

/* ---------- Tutorials grid (Apple-style: big rounded cards) ---------- */
.tutorial-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 22px;
}
.tutorial-card {
  cursor: pointer;
  border-radius: 14px;
  overflow: hidden;
  background: var(--input-bg);
  border: 1px solid var(--line);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.tutorial-card:hover { transform: translateY(-4px); box-shadow: 0 14px 28px rgba(0,0,0,0.08); }
.tutorial-thumb {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 10;
  background: #000;
  overflow: hidden;
}
.tutorial-thumb img { width: 100%; height: 100%; object-fit: cover; display: block; }
.tutorial-play {
  position: absolute; inset: 0;
  display: flex; align-items: center; justify-content: center;
}
.tutorial-play span {
  width: 52px; height: 52px;
  border-radius: 50%;
  background: rgba(255,255,255,0.92);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.1rem;
  color: var(--ink);
}
.tutorial-duration {
  position: absolute; right: 8px; bottom: 8px;
  background: rgba(0,0,0,0.7);
  color: #fff;
  font-size: 0.7rem;
  padding: 2px 8px;
  border-radius: 999px;
}
.tutorial-info { padding: 14px 16px 18px; }
.tutorial-info h3 {
  font-family: 'Fraunces', serif;
  font-weight: 600;
  font-size: 1rem;
  margin: 0;
}

/* ---------- Referral card (share & earn, lavender theme) ---------- */
.referral-card {
  background: #F3EEFB;
  border: 1px solid #DCCFF2;
  padding: 40px;
  text-align: center;
  max-width: 460px;
  margin: 0 auto;
}
.referral-card h3 {
  font-family: 'Fraunces', serif;
  font-weight: 600;
  font-size: 1.3rem;
  color: #5B3FA0;
  margin-bottom: 10px;
}
.referral-card p.sub {
  color: #6b5f8a;
  font-size: 0.92rem;
  margin-bottom: 24px;
  line-height: 1.5;
}
.referral-card img.qr {
  width: 180px; height: 180px;
  border: 8px solid #fff;
  box-shadow: 0 8px 20px rgba(91,63,160,0.15);
  margin-bottom: 22px;
}
.referral-link-row {
  display: flex;
  gap: 8px;
  margin-bottom: 18px;
}
.referral-link-row input {
  flex: 1;
  background: #fff;
  border: 1px solid #DCCFF2;
  padding: 10px 12px;
  font-size: 0.82rem;
  color: #5B3FA0;
}
.referral-share-row {
  display: flex;
  gap: 10px;
  justify-content: center;
  flex-wrap: wrap;
}
.referral-share-row a, .referral-share-row button {
  border: 1px solid #C9B6EA;
  background: #fff;
  color: #5B3FA0;
  padding: 9px 16px;
  font-size: 0.82rem;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
}
.referral-share-row a:hover, .referral-share-row button:hover { background: #5B3FA0; color: #fff; }

/* ---------- Enfócate: Pomodoro + playlist ---------- */
.focus-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}
.pomodoro-card {
  background: var(--ink);
  color: var(--paper);
  padding: 36px;
  text-align: center;
}
.pomodoro-mode {
  font-family: 'Work Sans', sans-serif;
  font-size: 0.75rem;
  letter-spacing: 0.25em;
  color: var(--gold);
  margin-bottom: 14px;
}
.pomodoro-display {
  font-family: 'Fraunces', serif;
  font-weight: 600;
  font-size: 4rem;
  line-height: 1;
  letter-spacing: 0.02em;
  margin-bottom: 24px;
  font-variant-numeric: tabular-nums;
}
.pomodoro-controls {
  display: flex;
  justify-content: center;
  gap: 10px;
  margin-bottom: 20px;
}
.pomodoro-controls button { border-color: rgba(255,255,255,0.3); color: var(--paper); }
.pomodoro-controls button:hover { background: var(--green); border-color: var(--green); }
.pomodoro-lengths { display: flex; justify-content: center; gap: 8px; }
.pomodoro-len-btn {
  background: transparent;
  border: 1px solid rgba(255,255,255,0.25);
  color: rgba(255,255,255,0.6);
  font-size: 0.75rem;
  padding: 6px 12px;
  border-radius: 999px;
  cursor: pointer;
}
.pomodoro-len-btn.active { border-color: var(--gold); color: var(--gold); }
.playlist-card {
  background: var(--input-bg);
  border: 1px solid var(--line);
  overflow: hidden;
}
.playlist-inner { padding: 18px; }
.playlist-toggle { display: flex; align-items: center; gap: 8px; margin-bottom: 14px; }
.playlist-toggle-btn {
  background: transparent;
  border: 1px solid var(--input-border);
  color: var(--text-muted);
  font-size: 0.78rem;
  font-weight: 600;
  padding: 7px 14px;
  border-radius: 999px;
  cursor: pointer;
}
.playlist-toggle-btn.active { border-color: var(--green); color: var(--green); background: var(--hover-bg); }
#playlist-embed-wrap iframe { width: 100%; border: 0; border-radius: 4px; display: block; }
#playlist-edit-row { margin-top: 14px; }
.playlist-placeholder { color: var(--text-muted); font-size: 0.92rem; text-align: center; padding: 20px; }
@media (max-width: 760px) {
  .focus-grid { grid-template-columns: 1fr; }
}

/* ---------- Tutorials carousel (main panel: horizontal scroll + arrows) ---------- */
.tutorial-carousel-wrap { position: relative; }
.tutorial-carousel {
  display: flex;
  gap: 18px;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  scroll-behavior: smooth;
  padding: 4px 4px 10px;
  -webkit-overflow-scrolling: touch;
}
.tutorial-carousel::-webkit-scrollbar { height: 6px; }
.tutorial-carousel::-webkit-scrollbar-thumb { background: var(--input-border); border-radius: 3px; }
.tutorial-carousel .tutorial-card {
  flex: 0 0 auto;
  width: 240px;
  scroll-snap-align: start;
  transition: transform 0.4s cubic-bezier(0.2, 0.8, 0.2, 1), box-shadow 0.4s ease;
}
.tutorial-carousel .tutorial-card:hover {
  transform: scale(1.045) translateY(-2px);
  box-shadow: 0 18px 34px rgba(0,0,0,0.14);
  z-index: 2;
}
.tutorial-carousel .tutorial-card {
  opacity: 0;
  animation: tutorialCardIn 0.6s ease forwards;
}
@keyframes tutorialCardIn {
  from { opacity: 0; transform: translateY(16px); }
  to { opacity: 1; transform: translateY(0); }
}
.carousel-arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 40px; height: 40px;
  border-radius: 50%;
  border: 1px solid var(--line);
  background: #fff;
  display: flex; align-items: center; justify-content: center;
  cursor: pointer;
  font-size: 1.1rem;
  box-shadow: 0 4px 12px rgba(0,0,0,0.08);
  z-index: 2;
}
.carousel-arrow:hover { background: var(--green); color: #fff; border-color: var(--green); }
.carousel-arrow.prev { left: -14px; }
.carousel-arrow.next { right: -14px; }
@media (max-width: 640px) {
  .carousel-arrow { display: none; }
}

/* ---------- Site footer (copyright notice) ---------- */
.site-footer {
  text-align: center;
  padding: 28px 20px 36px;
  font-size: 0.76rem;
  line-height: 1.6;
  color: var(--text-muted);
  border-top: 1px solid var(--line);
  margin-top: 60px;
}
.site-footer .social-icons {
  display: flex;
  justify-content: center;
  gap: 18px;
  margin-bottom: 16px;
}
.site-footer .social-icons a {
  color: var(--text-muted);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px; height: 34px;
  border: 1px solid var(--line);
  border-radius: 50%;
  transition: color 0.15s ease, border-color 0.15s ease;
}
.site-footer .social-icons a:hover { color: var(--green); border-color: var(--green); }
.site-footer .social-icons svg { width: 16px; height: 16px; fill: currentColor; }