@import url('https://fonts.googleapis.com/css2?family=Cormorant+Garamond:wght@400;600;700&family=Nunito:wght@300;400;600&display=swap');

/* ─── Custom Properties ─── */
:root {
  --bg:          #070b1d;
  --bg-card:     rgba(8, 14, 38, 0.82);
  --bg-card-h:   rgba(12, 20, 52, 0.92);
  --gold:        #c9a84c;
  --gold-light:  #e8c970;
  --gold-dim:    rgba(201, 168, 76, 0.12);
  --white:       #f0eeea;
  --white-60:    rgba(240, 238, 234, 0.6);
  --white-20:    rgba(240, 238, 234, 0.2);
  --white-08:    rgba(240, 238, 234, 0.08);
  --border:      rgba(201, 168, 76, 0.18);
  --radius:      18px;
  --radius-sm:   10px;
  --shadow:      0 12px 40px rgba(0, 0, 0, 0.5);
  --shadow-gold: 0 0 32px rgba(201, 168, 76, 0.12);
  --transition:  0.25s ease;
}

/* ─── Reset ─── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }

body {
  font-family: 'Nunito', sans-serif;
  background: var(--bg);
  color: var(--white);
  min-height: 100vh;
  overflow-x: hidden;
}

/* ─── Stars Canvas ─── */
#stars-canvas {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
}

/* ─── Nebula gradient overlay ─── */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  z-index: 0;
  background:
    radial-gradient(ellipse 60% 50% at 15% 40%, rgba(80, 50, 180, 0.06) 0%, transparent 70%),
    radial-gradient(ellipse 50% 60% at 85% 20%, rgba(30, 60, 160, 0.08) 0%, transparent 70%),
    radial-gradient(ellipse 80% 40% at 50% 80%, rgba(100, 40, 140, 0.04) 0%, transparent 70%);
  pointer-events: none;
}

/* ─── Layout wrapper ─── */
.page-wrapper {
  position: relative;
  z-index: 1;
  min-height: 100vh;
}

/* ─── Lotus SVG icon ─── */
.lotus {
  display: block;
  width: 44px;
  height: 44px;
  margin: 0 auto;
  filter: drop-shadow(0 0 10px rgba(201,168,76,0.5));
}

/* ══════════════════════════════
   LOGIN PAGE
══════════════════════════════ */
.login-page {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  padding: 2rem;
}

.login-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 3rem 2.5rem;
  width: 100%;
  max-width: 420px;
  text-align: center;
  backdrop-filter: blur(20px);
  box-shadow: var(--shadow), var(--shadow-gold);
}

.login-logo {
  width: 100px;
  height: 100px;
  object-fit: cover;
  border-radius: 12px;
  margin-bottom: 1.5rem;
}

.login-title {
  font-family: 'Cormorant Garamond', serif;
  font-size: 2.2rem;
  font-weight: 700;
  color: var(--white);
  line-height: 1.1;
  letter-spacing: 0.02em;
}

.login-subtitle {
  font-family: 'Cormorant Garamond', serif;
  font-size: 1.2rem;
  font-weight: 400;
  color: var(--gold);
  font-style: italic;
  letter-spacing: 0.08em;
  margin-bottom: 0.5rem;
}

.login-desc {
  font-size: 0.85rem;
  color: var(--white-60);
  margin: 1.2rem 0 2rem;
  line-height: 1.6;
}

.login-divider {
  width: 60px;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--gold), transparent);
  margin: 1rem auto;
}

.login-field {
  position: relative;
  margin-bottom: 1.2rem;
}

.login-field input {
  width: 100%;
  padding: 0.9rem 1.2rem;
  background: var(--white-08);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--white);
  font-family: 'Nunito', sans-serif;
  font-size: 1rem;
  text-align: center;
  letter-spacing: 0.15em;
  outline: none;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.login-field input::placeholder { color: var(--white-20); letter-spacing: 0.05em; }

.login-field input:focus {
  border-color: var(--gold);
  box-shadow: 0 0 0 3px var(--gold-dim);
}

.login-error {
  color: #ff8a8a;
  font-size: 0.8rem;
  margin-top: -0.8rem;
  margin-bottom: 0.8rem;
  min-height: 1em;
}

.btn-primary {
  display: inline-block;
  width: 100%;
  padding: 0.9rem 2rem;
  background: linear-gradient(135deg, var(--gold), var(--gold-light));
  color: #070b1d;
  font-family: 'Nunito', sans-serif;
  font-size: 0.95rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: opacity var(--transition), transform var(--transition), box-shadow var(--transition);
  box-shadow: 0 4px 20px rgba(201, 168, 76, 0.3);
}

.btn-primary:hover {
  opacity: 0.92;
  transform: translateY(-1px);
  box-shadow: 0 6px 28px rgba(201, 168, 76, 0.4);
}

.btn-primary:active { transform: translateY(0); }

/* ══════════════════════════════
   NAVIGATION
══════════════════════════════ */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.9rem 2rem;
  background: rgba(7, 11, 29, 0.88);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  text-decoration: none;
}

.nav-logo {
  width: 36px;
  height: 36px;
  border-radius: 6px;
  object-fit: cover;
}

.nav-brand-text {
  font-family: 'Cormorant Garamond', serif;
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--white);
  line-height: 1.1;
}

.nav-brand-text em {
  display: block;
  font-family: 'Cormorant Garamond', serif;
  font-style: italic;
  font-size: 0.85rem;
  font-weight: 400;
  color: var(--gold);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.nav-link {
  padding: 0.45rem 1rem;
  border-radius: 40px;
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  text-decoration: none;
  color: var(--white-60);
  transition: color var(--transition), background var(--transition);
}

.nav-link:hover { color: var(--white); background: var(--white-08); }

.nav-link.active {
  color: var(--gold);
  background: var(--gold-dim);
  border: 1px solid var(--border);
}

.nav-logout {
  background: none;
  border: 1px solid var(--border);
  border-radius: 40px;
  padding: 0.4rem 0.9rem;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--white-60);
  cursor: pointer;
  font-family: 'Nunito', sans-serif;
  letter-spacing: 0.06em;
  transition: color var(--transition), border-color var(--transition);
}

.nav-logout:hover { color: var(--white); border-color: var(--white-20); }

/* ══════════════════════════════
   PAGE HEADER
══════════════════════════════ */
.page-header {
  text-align: center;
  padding: 3.5rem 2rem 2.5rem;
}

.page-header .tag {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--gold);
  background: var(--gold-dim);
  border: 1px solid var(--border);
  padding: 0.3rem 1rem;
  border-radius: 40px;
  margin-bottom: 1rem;
}

.page-header h1 {
  font-family: 'Cormorant Garamond', serif;
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 700;
  color: var(--white);
  letter-spacing: 0.02em;
  line-height: 1.15;
  margin-bottom: 0.5rem;
}

.page-header p {
  font-size: 0.95rem;
  color: var(--white-60);
  max-width: 520px;
  margin: 0.5rem auto 0;
  line-height: 1.7;
}

/* ─── Welcome Steps ─── */
.steps {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0;
  flex-wrap: wrap;
  margin: 2rem auto 0;
  max-width: 680px;
  padding: 1.2rem 1.5rem;
  background: var(--white-08);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

.step {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.4rem;
  flex: 1;
  min-width: 110px;
  padding: 0.5rem;
  text-align: center;
}

.step-icon {
  font-size: 1.4rem;
  line-height: 1;
}

.step-label {
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--white-60);
  line-height: 1.3;
}

.step-arrow {
  color: var(--gold);
  opacity: 0.4;
  font-size: 1rem;
  padding: 0 0.2rem;
}

.steps-tagline {
  text-align: center;
  font-size: 0.72rem;
  letter-spacing: 0.2em;
  color: var(--gold);
  text-transform: uppercase;
  margin-top: 1.2rem;
  opacity: 0.8;
}

/* ══════════════════════════════
   EXERCISE CARDS
══════════════════════════════ */
.exercises-grid {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  max-width: 860px;
  margin: 0 auto;
  padding: 0 1.5rem 4rem;
}

.exercise-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  backdrop-filter: blur(16px);
  box-shadow: var(--shadow);
  transition: box-shadow var(--transition), border-color var(--transition);
  display: grid;
  grid-template-columns: 200px 1fr;
}

.exercise-card:hover {
  border-color: rgba(201, 168, 76, 0.3);
  box-shadow: var(--shadow), var(--shadow-gold);
}

.exercise-img-wrap {
  position: relative;
  overflow: hidden;
}

.exercise-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.4s ease;
}

.exercise-card:hover .exercise-img { transform: scale(1.03); }

.exercise-body {
  padding: 1.8rem 1.8rem 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
}

.exercise-number {
  font-family: 'Cormorant Garamond', serif;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.25em;
  color: var(--gold);
  text-transform: uppercase;
}

.exercise-title {
  font-family: 'Cormorant Garamond', serif;
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--white);
  line-height: 1.2;
  letter-spacing: 0.01em;
}

.exercise-desc {
  font-size: 0.85rem;
  color: var(--white-60);
  line-height: 1.6;
}

.exercise-divider {
  height: 1px;
  background: linear-gradient(90deg, var(--border), transparent);
}

/* ─── Voice Toggle ─── */
.voice-toggle {
  display: flex;
  gap: 0.5rem;
  align-items: center;
}

.voice-label {
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  color: var(--white-60);
  text-transform: uppercase;
  margin-right: 0.4rem;
}

.voice-btn {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.38rem 0.9rem;
  border-radius: 40px;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--white-60);
  font-family: 'Nunito', sans-serif;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  cursor: pointer;
  transition: all var(--transition);
}

.voice-btn:hover { color: var(--white); border-color: var(--white-20); }

.voice-btn.active {
  background: var(--gold-dim);
  border-color: var(--gold);
  color: var(--gold-light);
}

.voice-btn .icon { font-size: 0.9rem; }

/* ─── Audio Player ─── */
.player {
  display: flex;
  align-items: center;
  gap: 0.9rem;
  margin-top: 0.2rem;
}

.play-btn {
  flex-shrink: 0;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--gold), var(--gold-light));
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 16px rgba(201, 168, 76, 0.35);
  transition: transform var(--transition), box-shadow var(--transition), opacity var(--transition);
}

.play-btn:hover {
  transform: scale(1.08);
  box-shadow: 0 6px 22px rgba(201, 168, 76, 0.5);
}

.play-btn:active { transform: scale(0.96); }

.play-btn svg { fill: #070b1d; width: 18px; height: 18px; }
.play-btn .icon-pause { display: none; }
.play-btn.playing .icon-play { display: none; }
.play-btn.playing .icon-pause { display: block; }

.player-track {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.progress-bar {
  position: relative;
  height: 4px;
  background: var(--white-08);
  border-radius: 4px;
  cursor: pointer;
  overflow: visible;
}

.progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--gold), var(--gold-light));
  border-radius: 4px;
  width: 0%;
  transition: width 0.1s linear;
  position: relative;
}

.progress-fill::after {
  content: '';
  position: absolute;
  right: -5px;
  top: 50%;
  transform: translateY(-50%);
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--gold-light);
  box-shadow: 0 0 8px rgba(201,168,76,0.6);
  opacity: 0;
  transition: opacity var(--transition);
}

.progress-bar:hover .progress-fill::after { opacity: 1; }

.player-time {
  font-size: 0.72rem;
  color: var(--white-60);
  letter-spacing: 0.05em;
  font-variant-numeric: tabular-nums;
}

/* ══════════════════════════════
   SOUNDS PAGE
══════════════════════════════ */
.sounds-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 1.2rem;
  max-width: 1000px;
  margin: 0 auto;
  padding: 0 1.5rem 4rem;
}

.sound-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem 1.2rem 1.2rem;
  backdrop-filter: blur(16px);
  box-shadow: var(--shadow);
  transition: box-shadow var(--transition), border-color var(--transition), background var(--transition);
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
  align-items: center;
  text-align: center;
  cursor: pointer;
}

.sound-card:hover {
  border-color: rgba(201, 168, 76, 0.28);
  background: var(--bg-card-h);
  box-shadow: var(--shadow), var(--shadow-gold);
}

.sound-card.playing {
  border-color: var(--gold);
  background: var(--bg-card-h);
  box-shadow: var(--shadow), 0 0 24px rgba(201, 168, 76, 0.2);
}

.sound-icon {
  font-size: 2rem;
  line-height: 1;
  filter: drop-shadow(0 0 8px rgba(201,168,76,0.3));
}

.sound-name {
  font-family: 'Cormorant Garamond', serif;
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--white);
  letter-spacing: 0.02em;
  line-height: 1.3;
}

.sound-progress-bar {
  width: 100%;
  height: 3px;
  background: var(--white-08);
  border-radius: 3px;
  cursor: pointer;
  overflow: visible;
}

.sound-progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--gold), var(--gold-light));
  border-radius: 3px;
  width: 0%;
  transition: width 0.1s linear;
}

.sound-controls {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  gap: 0.5rem;
}

.sound-play-btn {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--gold), var(--gold-light));
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 3px 12px rgba(201, 168, 76, 0.3);
  transition: transform var(--transition), box-shadow var(--transition);
  flex-shrink: 0;
}

.sound-play-btn:hover {
  transform: scale(1.1);
  box-shadow: 0 5px 18px rgba(201, 168, 76, 0.45);
}

.sound-play-btn svg { fill: #070b1d; width: 16px; height: 16px; }
.sound-play-btn .icon-pause { display: none; }
.sound-play-btn.playing .icon-play { display: none; }
.sound-play-btn.playing .icon-pause { display: block; }

.sound-loop-btn {
  background: transparent;
  border: 1px solid var(--border);
  border-radius: 40px;
  padding: 0.3rem 0.6rem;
  color: var(--white-60);
  font-size: 0.7rem;
  font-family: 'Nunito', sans-serif;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 0.25rem;
  transition: all var(--transition);
  letter-spacing: 0.06em;
}

.sound-loop-btn:hover { color: var(--white); border-color: var(--white-20); }

.sound-loop-btn.active {
  background: var(--gold-dim);
  border-color: var(--gold);
  color: var(--gold-light);
}

.sound-time {
  font-size: 0.65rem;
  color: var(--white-60);
  letter-spacing: 0.04em;
  font-variant-numeric: tabular-nums;
}

/* ══════════════════════════════
   FOOTER
══════════════════════════════ */
.page-footer {
  text-align: center;
  padding: 2rem;
  border-top: 1px solid var(--border);
  font-size: 0.75rem;
  color: var(--white-60);
  letter-spacing: 0.08em;
}

/* ══════════════════════════════
   RESPONSIVE
══════════════════════════════ */
@media (max-width: 640px) {
  .nav { padding: 0.8rem 1rem; }
  .nav-brand-text { display: none; }
  .nav-links { gap: 0.2rem; }
  .nav-link { padding: 0.4rem 0.7rem; font-size: 0.75rem; }

  .exercise-card {
    grid-template-columns: 1fr;
    grid-template-rows: 220px auto;
  }

  .exercise-img { height: 100%; object-position: top; }

  .exercise-body { padding: 1.4rem; }

  .exercise-title { font-size: 1.4rem; }

  .sounds-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 0.9rem;
    padding: 0 1rem 3rem;
  }

  .steps { gap: 0; padding: 1rem; }
  .step-arrow { display: none; }
  .step { min-width: 80px; }

  .page-header { padding: 2rem 1.2rem 1.5rem; }
}

@media (max-width: 380px) {
  .sounds-grid { grid-template-columns: 1fr; }
}

/* ─── Fade in animation ─── */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(16px); }
  to   { opacity: 1; transform: translateY(0); }
}

.exercise-card, .sound-card {
  animation: fadeUp 0.5s ease both;
}

.exercise-card:nth-child(1) { animation-delay: 0.05s; }
.exercise-card:nth-child(2) { animation-delay: 0.12s; }
.exercise-card:nth-child(3) { animation-delay: 0.19s; }
.exercise-card:nth-child(4) { animation-delay: 0.26s; }