/* ============================================================
   ТОЧКА ОПОРЫ — Luxe Minimal Light Theme
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Cormorant+Garamond:ital,wght@0,300;0,400;0,600;1,300;1,400&family=Jost:wght@300;400;500;600&display=swap');

/* ── ТОКЕНЫ ─────────────────────────────────────────────── */
:root {
  --gold:        #C9A84C;
  --gold-light:  #E8C96A;
  --gold-dim:    rgba(201,168,76,0.18);
  --gold-border: rgba(201,168,76,0.45);
  --cream:       #FAF8F3;
  --cream-2:     #F3EFE6;
  --cream-3:     #EDE8DC;
  --ink:         #1C1A15;
  --ink-2:       #3D3A31;
  --ink-3:       #7A7060;
  --white:       #FFFFFF;
  --shadow-sm:   0 2px 12px rgba(28,26,21,0.08);
  --shadow-md:   0 6px 28px rgba(28,26,21,0.12);
  --shadow-lg:   0 16px 48px rgba(28,26,21,0.16);
  --radius-sm:   14px;
  --radius-md:   22px;
  --radius-lg:   32px;
  --radius-xl:   44px;
  --ease-out:    cubic-bezier(0.16, 1, 0.3, 1);
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
  --font-display: 'Cormorant Garamond', Georgia, serif;
  --font-body:    'Jost', 'Helvetica Neue', sans-serif;
  --duration-fast: 160ms;
  --duration-mid:  280ms;
  --duration-slow: 480ms;
}

/* ── RESET & BASE ───────────────────────────────────────── */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }

html { font-size: 16px; -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }

body {
  background: var(--cream);
  font-family: var(--font-body);
  color: var(--ink);
  min-height: 100vh;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ── LOADING SCREEN ─────────────────────────────────────── */
#loadingScreen {
  position: fixed; inset: 0; z-index: 9999;
  background: var(--cream);
  display: flex; flex-direction: column;
  align-items: center; justify-content: center; gap: 28px;
  transition: opacity var(--duration-slow) var(--ease-out),
              visibility var(--duration-slow);
}
#loadingScreen.hidden { opacity: 0; visibility: hidden; pointer-events: none; }

.loading-logo {
  font-family: var(--font-display);
  font-size: 36px; font-weight: 600;
  color: var(--ink);
  letter-spacing: 0.5px;
  animation: fadeUp 0.6s var(--ease-out) both;
}
.loading-logo span { color: var(--gold); }

.loading-bar-wrap {
  width: 120px; height: 2px;
  background: var(--cream-3);
  border-radius: 99px; overflow: hidden;
  animation: fadeUp 0.6s 0.15s var(--ease-out) both;
}
.loading-bar {
  height: 100%; width: 0;
  background: linear-gradient(90deg, var(--gold), var(--gold-light));
  border-radius: 99px;
  animation: loadBar 1.8s var(--ease-out) 0.2s forwards;
}
.loading-sub {
  font-size: 12px; color: var(--ink-3);
  letter-spacing: 1.5px; text-transform: uppercase;
  animation: fadeUp 0.6s 0.3s var(--ease-out) both;
}
@keyframes loadBar { to { width: 100%; } }
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(12px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ── 3D CANVAS (скрыт в светлой теме) ──────────────────── */
#canvas-container { display: none; }

/* ── LANG SWITCHER ──────────────────────────────────────── */
.lang-switcher {
  position: fixed; top: 16px; right: 16px; z-index: 200;
  background: var(--white);
  border: 1px solid var(--gold-border);
  border-radius: 99px;
  padding: 5px 8px;
  display: flex; gap: 4px;
  box-shadow: var(--shadow-sm);
  backdrop-filter: blur(12px);
}
.lang-btn {
  background: transparent; border: none;
  color: var(--ink-3); font-family: var(--font-body);
  font-size: 12px; font-weight: 500;
  cursor: pointer; padding: 5px 10px;
  border-radius: 99px;
  transition: all var(--duration-fast) var(--ease-out);
  letter-spacing: 0.5px;
}
.lang-btn.active { background: var(--gold); color: var(--white); }
.lang-btn:hover:not(.active) { background: var(--gold-dim); color: var(--ink); }

/* ── APP WRAPPER ────────────────────────────────────────── */
.app-wrapper {
  position: relative; z-index: 10;
  min-height: 100vh;
  padding: 0 0 80px;
}
.app-container { max-width: 480px; margin: 0 auto; position: relative; }

/* ── HEADER ─────────────────────────────────────────────── */
.header {
  text-align: center;
  padding: 72px 24px 36px;
  animation: fadeUp 0.7s var(--ease-out) both;
}
.brand {
  font-family: var(--font-display);
  font-size: 42px; font-weight: 600;
  color: var(--ink);
  letter-spacing: -0.5px;
  line-height: 1.1;
}
.brand-dot { color: var(--gold); }
.tagline {
  font-size: 13px; color: var(--ink-3);
  font-style: italic;
  margin-top: 8px;
  letter-spacing: 0.3px;
  line-height: 1.5;
}

/* ── DIVIDER ────────────────────────────────────────────── */
.gold-divider {
  width: 40px; height: 1px;
  background: linear-gradient(90deg, transparent, var(--gold), transparent);
  margin: 0 auto 28px;
}

/* ── MAIN NAV BUTTONS ───────────────────────────────────── */
.main-nav {
  padding: 0 20px;
  display: flex; flex-direction: column; gap: 12px;
  animation: fadeUp 0.7s 0.1s var(--ease-out) both;
}

.btn-nav-main {
  background: var(--white);
  border: 1.5px solid var(--gold-border);
  border-radius: var(--radius-lg);
  padding: 20px 24px;
  color: var(--ink);
  font-family: var(--font-display);
  font-size: 20px; font-weight: 600;
  cursor: pointer; width: 100%;
  text-align: left;
  display: flex; align-items: center; gap: 14px;
  transition: all var(--duration-mid) var(--ease-out);
  box-shadow: var(--shadow-sm);
  position: relative; overflow: hidden;
}
.btn-nav-main::after {
  content: '';
  position: absolute; inset: 0;
  background: linear-gradient(135deg, var(--gold-dim), transparent);
  opacity: 0;
  transition: opacity var(--duration-mid) var(--ease-out);
}
.btn-nav-main:hover {
  border-color: var(--gold);
  box-shadow: var(--shadow-md), 0 0 0 3px var(--gold-dim);
  transform: translateY(-2px);
}
.btn-nav-main:hover::after { opacity: 1; }
.btn-nav-main:active { transform: translateY(0) scale(0.985); }

.btn-nav-main .nav-icon { font-size: 22px; flex-shrink: 0; }
.btn-nav-main .nav-text { flex: 1; }
.btn-nav-main .nav-arrow {
  font-size: 14px; color: var(--gold);
  transition: transform var(--duration-fast) var(--ease-out);
}
.btn-nav-main:hover .nav-arrow { transform: translateX(4px); }

/* Варианты кнопок */
.btn-nav-main.neuro  { border-left: 3px solid #6B9BD2; }
.btn-nav-main.vratas { border-left: 3px solid var(--gold); }
.btn-nav-main.kosmo  { border-left: 3px solid #9B7FD4; }

/* ── VRATAS PANEL ───────────────────────────────────────── */
.vratas-panel {
  margin: 12px 20px 0;
  padding: 20px;
  background: var(--white);
  border: 1px solid var(--gold-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  display: none;
  animation: slideDown 0.3s var(--ease-out);
}
.vratas-panel.open { display: block; }

/* Описание раздела 5 Врат */
.vratas-intro {
  font-size: 13px;
  color: var(--ink-3);
  line-height: 1.6;
  padding: 12px 14px;
  background: var(--cream-2);
  border-radius: var(--radius-sm);
  border-left: 3px solid var(--gold);
  margin-bottom: 16px;
}

@keyframes slideDown {
  from { opacity: 0; transform: translateY(-8px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ── BUY ALL BUTTON ─────────────────────────────────────── */
.btn-buy-all {
  background: linear-gradient(135deg, var(--gold) 0%, var(--gold-light) 100%);
  border: none;
  color: var(--white);
  font-family: var(--font-body);
  font-weight: 600; font-size: 14px;
  padding: 14px 20px;
  border-radius: var(--radius-xl);
  cursor: pointer; width: 100%;
  margin-bottom: 16px;
  display: flex; align-items: center; justify-content: center; gap: 8px;
  box-shadow: 0 4px 16px rgba(201,168,76,0.35);
  transition: all var(--duration-mid) var(--ease-out);
  letter-spacing: 0.3px;
}
.btn-buy-all:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(201,168,76,0.45);
}
.btn-buy-all:active { transform: scale(0.98); }

/* ── KEY GRID ───────────────────────────────────────────── */
.grid-2x2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.key-card {
  background: var(--cream-2);
  border: 1.5px solid var(--gold-border);
  border-radius: var(--radius-md);
  padding: 20px 14px;
  text-align: center;
  cursor: pointer;
  transition: all var(--duration-mid) var(--ease-spring);
  position: relative; overflow: hidden;
}
.key-card::before {
  content: '';
  position: absolute; top: 0; left: 0; right: 0; height: 3px;
  background: linear-gradient(90deg, var(--gold), var(--gold-light));
  opacity: 0;
  transition: opacity var(--duration-fast);
}
.key-card:hover {
  border-color: var(--gold);
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}
.key-card:hover::before { opacity: 1; }
.key-card:active { transform: scale(0.97); }

.key-number {
  font-family: var(--font-display);
  font-size: 11px; font-weight: 600;
  color: var(--gold);
  letter-spacing: 2px;
  text-transform: uppercase;
  margin-bottom: 6px;
}
.key-name {
  font-family: var(--font-display);
  font-size: 16px; font-weight: 600;
  color: var(--ink); line-height: 1.25;
}
.price-small {
  font-size: 11px; margin-top: 5px;
  color: var(--ink-3); font-weight: 400;
}
.status-badge {
  font-size: 10px; margin-top: 8px;
  font-weight: 500; letter-spacing: 0.5px;
}
.status-open  { color: #4CAF6A; }
.status-closed { color: var(--gold); }
.status-locked { color: var(--ink-3); }

/* ── DONATE BUTTON ──────────────────────────────────────── */
.btn-donate {
  display: block; width: calc(100% - 40px);
  margin: 16px 20px 0;
  background: transparent;
  border: 1px solid var(--gold-border);
  border-radius: var(--radius-xl);
  color: var(--ink-2); font-family: var(--font-body);
  font-size: 13px; font-weight: 500;
  padding: 13px 20px; cursor: pointer;
  transition: all var(--duration-mid) var(--ease-out);
  letter-spacing: 0.3px;
}
.btn-donate:hover {
  background: var(--gold-dim);
  border-color: var(--gold);
  transform: translateY(-1px);
}
.btn-donate:active { transform: scale(0.98); }

/* ── NOTE ───────────────────────────────────────────────── */
.note {
  text-align: center;
  font-size: 11px; color: var(--ink-3);
  letter-spacing: 1px; text-transform: uppercase;
  margin-top: 20px; padding: 0 20px;
  animation: fadeUp 0.7s 0.35s var(--ease-out) both;
}

/* ── DYNAMIC PANEL ──────────────────────────────────────── */
#dynamicPanel {
  padding: 0 20px 60px;
  animation: fadeUp 0.4s var(--ease-out);
}
#dynamicPanel.hidden { display: none; }

/* ── SECTION HEADER ─────────────────────────────────────── */
.section-header {
  padding: 60px 0 24px;
  text-align: center;
}
.section-title {
  font-family: var(--font-display);
  font-size: 36px; font-weight: 600;
  color: var(--ink); line-height: 1.15;
}
.section-sub {
  font-size: 13px; color: var(--ink-3);
  margin-top: 8px; line-height: 1.6;
  font-style: italic;
}

/* ── BLOCK BUTTONS (Kosmo / Neuro style) ────────────────── */
.block-btn {
  display: flex; align-items: center; gap: 14px;
  width: 100%;
  background: var(--white);
  border: 1px solid var(--gold-border);
  border-radius: var(--radius-md);
  padding: 16px 18px;
  margin-bottom: 10px;
  cursor: pointer;
  transition: all var(--duration-mid) var(--ease-out);
  box-shadow: var(--shadow-sm);
}
.block-btn:hover {
  border-color: var(--gold);
  transform: translateX(4px);
  box-shadow: var(--shadow-md);
}
.block-btn:active { transform: scale(0.99); }
.block-icon { font-size: 22px; flex-shrink: 0; width: 36px; text-align: center; }
.block-label {
  font-family: var(--font-display);
  font-size: 17px; font-weight: 600;
  color: var(--ink); flex: 1; text-align: left;
}
.block-count { font-size: 11px; color: var(--ink-3); white-space: nowrap; }
.block-arrow { font-size: 13px; color: var(--gold); margin-left: 6px; }

/* Алиасы для обратной совместимости */
.kosmo-block-btn { display:flex; align-items:center; gap:14px; width:100%; background:var(--white); border:1px solid var(--gold-border); border-radius:var(--radius-md); padding:16px 18px; margin-bottom:10px; cursor:pointer; transition:all var(--duration-mid) var(--ease-out); box-shadow:var(--shadow-sm); }
.kosmo-block-btn:hover { border-color:var(--gold); transform:translateX(4px); box-shadow:var(--shadow-md); }
.kosmo-block-icon { font-size:22px; flex-shrink:0; }
.kosmo-block-label { font-family:var(--font-display); font-size:17px; font-weight:600; color:var(--ink); flex:1; text-align:left; }
.kosmo-block-count { font-size:11px; color:var(--ink-3); white-space:nowrap; }

/* ── TRAINING BUTTON (inside sections) ──────────────────── */
.btn-training-kosmo {
  background: linear-gradient(135deg, var(--gold) 0%, var(--gold-light) 100%);
  border: none;
  border-radius: var(--radius-lg);
  padding: 18px 22px;
  color: var(--white);
  font-family: var(--font-body);
  font-size: 15px; font-weight: 600;
  cursor: pointer; width: 100%;
  text-align: center; margin-top: 20px;
  display: flex; align-items: center; justify-content: center; gap: 10px;
  box-shadow: 0 6px 24px rgba(201,168,76,0.4);
  transition: all var(--duration-mid) var(--ease-out);
  letter-spacing: 0.3px;
}
.btn-training-kosmo:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 32px rgba(201,168,76,0.5);
}
.btn-training-kosmo:active { transform: scale(0.98); }

/* Кнопка диагностики нейрокоучинг */
.btn-diagnostics {
  background: var(--ink);
  border: none;
  border-radius: var(--radius-lg);
  padding: 18px 22px;
  color: var(--white);
  font-family: var(--font-body);
  font-size: 15px; font-weight: 600;
  cursor: pointer; width: 100%;
  text-align: center; margin-top: 12px;
  display: flex; align-items: center; justify-content: center; gap: 10px;
  box-shadow: 0 6px 24px rgba(28,26,21,0.2);
  transition: all var(--duration-mid) var(--ease-out);
  letter-spacing: 0.3px;
}
.btn-diagnostics:hover {
  background: var(--ink-2);
  transform: translateY(-2px);
  box-shadow: 0 10px 32px rgba(28,26,21,0.25);
}
.btn-diagnostics:active { transform: scale(0.98); }

/* ── MEDITATION CARD ────────────────────────────────────── */
.meditation-card {
  background: var(--white);
  border: 1px solid var(--gold-border);
  border-radius: var(--radius-xl);
  padding: 28px 24px;
  margin: 16px 0;
  box-shadow: var(--shadow-md);
  animation: fadeUp 0.4s var(--ease-out) both;
}
.med-title {
  font-family: var(--font-display);
  font-size: 28px; font-weight: 600;
  color: var(--ink); margin-bottom: 14px;
  line-height: 1.2;
}
.med-sub {
  font-size: 14px; color: var(--ink-2);
  line-height: 1.7;
  border-left: 2px solid var(--gold);
  padding-left: 14px;
  margin-bottom: 20px;
}

/* ── FREQ CARDS ─────────────────────────────────────────── */
.freq-card {
  background: var(--white);
  border: 1px solid var(--cream-3);
  border-radius: var(--radius-md);
  margin-bottom: 8px; overflow: hidden;
  transition: border-color var(--duration-fast);
}
.freq-card:hover { border-color: var(--gold-border); }
.freq-header {
  display: flex; align-items: center;
  justify-content: space-between;
  padding: 14px 18px; cursor: pointer;
  transition: background var(--duration-fast);
}
.freq-header:hover { background: var(--cream-2); }
.freq-name {
  font-family: var(--font-display);
  font-size: 16px; font-weight: 600;
  color: var(--ink); letter-spacing: 0.2px;
}
.freq-toggle {
  color: var(--gold); font-size: 11px;
  transition: transform 0.3s var(--ease-out);
  flex-shrink: 0; margin-left: 10px;
}
.freq-toggle.open { transform: rotate(180deg); }
.freq-body { padding: 0 18px 16px; display: none; }
.freq-body.open { display: block; animation: slideDown 0.2s var(--ease-out); }
.freq-desc {
  font-size: 13px; color: var(--ink-2);
  line-height: 1.75;
  border-left: 2px solid var(--gold-border);
  padding-left: 12px; margin: 0;
  white-space: pre-wrap;
}

/* ── AUDIO FULLSCREEN ───────────────────────────────────── */
.fullscreen-audio-card {
  position: fixed; inset: 0; z-index: 2000;
  background: var(--cream);
  display: flex; align-items: center; justify-content: center;
  flex-direction: column;
  animation: fadeUp 0.4s var(--ease-out);
  padding: 24px; overflow-y: auto;
}
.fullscreen-audio-card .meditation-card {
  width: 100%; max-width: 460px;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
}

/* ── CUSTOM AUDIO PLAYER ────────────────────────────────── */
.custom-player {
  background: var(--cream-2);
  border: 1px solid var(--gold-border);
  border-radius: var(--radius-lg);
  padding: 20px;
  margin: 16px 0;
}
.player-controls {
  display: flex; align-items: center;
  gap: 12px; flex-wrap: wrap;
}
.play-btn {
  background: var(--gold);
  border: none; color: var(--white);
  width: 48px; height: 48px;
  border-radius: 50%;
  font-size: 18px; cursor: pointer;
  flex-shrink: 0;
  transition: all var(--duration-fast) var(--ease-spring);
  box-shadow: 0 4px 14px rgba(201,168,76,0.4);
  display: flex; align-items: center; justify-content: center;
}
.play-btn:hover { transform: scale(1.08); background: var(--gold-light); }
.play-btn:active { transform: scale(0.94); }

.time {
  font-size: 12px; color: var(--ink-3);
  font-family: 'SF Mono', 'Fira Mono', monospace;
  min-width: 90px; text-align: center;
}
.seek-bar {
  flex: 1; min-width: 100px; height: 4px;
  -webkit-appearance: none;
  background: var(--cream-3); border-radius: 99px; cursor: pointer;
}
.seek-bar::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 14px; height: 14px;
  background: var(--gold); border-radius: 50%;
  cursor: pointer;
  box-shadow: 0 0 0 3px var(--gold-dim);
  transition: transform var(--duration-fast);
}
.seek-bar:hover::-webkit-slider-thumb { transform: scale(1.2); }
.speed-select {
  background: var(--white); border: 1px solid var(--gold-border);
  border-radius: 99px; padding: 7px 12px;
  font-size: 12px; font-weight: 500;
  color: var(--ink-2); cursor: pointer;
  font-family: var(--font-body);
  transition: border-color var(--duration-fast);
}
.speed-select:hover { border-color: var(--gold); }

/* ── BUTTONS (action) ───────────────────────────────────── */
.btn-audio {
  background: var(--gold);
  border: none; color: var(--white);
  font-family: var(--font-body);
  font-weight: 600; font-size: 15px;
  padding: 14px 24px;
  border-radius: var(--radius-xl);
  cursor: pointer; width: 100%;
  margin-top: 14px;
  box-shadow: 0 4px 16px rgba(201,168,76,0.35);
  transition: all var(--duration-mid) var(--ease-out);
  letter-spacing: 0.3px;
}
.btn-audio:hover {
  background: var(--gold-light);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(201,168,76,0.45);
}
.btn-audio:active { transform: scale(0.98); }
.btn-audio:disabled { background: var(--cream-3); color: var(--ink-3); box-shadow: none; cursor: not-allowed; }

.btn-secondary {
  background: transparent;
  border: 1.5px solid var(--gold-border);
  color: var(--ink-2);
  box-shadow: none;
}
.btn-secondary:hover {
  background: var(--gold-dim);
  border-color: var(--gold);
  color: var(--ink);
  box-shadow: none;
  transform: translateY(-1px);
}

/* ── BACK / NAV BUTTONS ─────────────────────────────────── */
.back-home, .back-to-start {
  background: var(--white);
  border: 1px solid var(--cream-3);
  color: var(--ink-2); font-family: var(--font-body);
  font-size: 12px; font-weight: 500;
  padding: 9px 16px; border-radius: var(--radius-xl);
  cursor: pointer;
  display: inline-flex; align-items: center; gap: 5px;
  transition: all var(--duration-fast) var(--ease-out);
  letter-spacing: 0.3px;
}
.back-home:hover, .back-to-start:hover {
  background: var(--cream-2);
  border-color: var(--gold-border);
  color: var(--ink);
}
.back-home:active, .back-to-start:active { transform: scale(0.97); }

/* ── QUIZ ───────────────────────────────────────────────── */
.quiz-question {
  margin: 14px 0;
  background: var(--cream-2);
  padding: 14px 16px;
  border-radius: var(--radius-md);
  border-left: 3px solid var(--gold);
  font-size: 14px; color: var(--ink-2);
  line-height: 1.5;
}

/* ── IMAGE ──────────────────────────────────────────────── */
.image-container { margin: 16px 0; text-align: center; }
.image-container img {
  max-width: 100%; border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
}

/* ── ERROR ──────────────────────────────────────────────── */
.error-message {
  background: #FFF1F0; border: 1px solid #FFB8B0;
  border-radius: var(--radius-lg);
  padding: 20px; text-align: center;
  color: #C0392B; font-size: 14px;
}

/* ── LOADING SPINNER ────────────────────────────────────── */
.loading-spinner {
  display: inline-block; width: 20px; height: 20px;
  border: 2px solid var(--cream-3);
  border-top-color: var(--gold);
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
  vertical-align: middle; margin-right: 10px;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ── VIDEO BLOCK ────────────────────────────────────────── */
.video-block {
  background: var(--ink);
  border-radius: var(--radius-lg);
  overflow: hidden; margin: 12px 0;
  position: relative;
  box-shadow: var(--shadow-md);
}
.video-block video, .video-block iframe {
  width: 100%; display: block;
  aspect-ratio: 16/9; border: none;
}
.video-label {
  padding: 12px 16px;
  font-size: 13px; color: rgba(255,255,255,0.75);
  font-style: italic;
}

/* ── PRICE SMALL (в ключах) ─────────────────────────────── */
.price-small { font-size: 11px; margin-top: 5px; color: var(--gold); }

/* ── UTILITY ────────────────────────────────────────────── */
.hidden { display: none !important; }

@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(10px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ── NEURO SECTION SPECIFICS ────────────────────────────── */
.neuro-intro-card {
  background: linear-gradient(135deg, #EEF4FB 0%, var(--white) 100%);
  border: 1px solid rgba(107,155,210,0.3);
  border-radius: var(--radius-xl);
  padding: 24px;
  margin-bottom: 16px;
}
.neuro-intro-card .med-title { color: var(--ink); }
.neuro-intro-card .med-sub { border-color: #6B9BD2; }

/* ── RIPPLE EFFECT ──────────────────────────────────────── */
.ripple-host { position: relative; overflow: hidden; }
.ripple {
  position: absolute;
  border-radius: 50%;
  background: rgba(201,168,76,0.25);
  transform: scale(0);
  animation: rippleAnim 0.55s var(--ease-out);
  pointer-events: none;
}
@keyframes rippleAnim {
  to { transform: scale(4); opacity: 0; }
}

/* ── RESPONSIVE ─────────────────────────────────────────── */
@media (max-width: 380px) {
  .brand { font-size: 34px; }
  .btn-nav-main { font-size: 18px; padding: 17px 18px; }
  .grid-2x2 { gap: 9px; }
  .key-name { font-size: 14px; }
}