/* Avati Mantra Night Prague - 7. 11. 2026 */
/* Theme: Bhakti Marga Devotional Branding with Hindu Sacred Aesthetics */

@import url('https://fonts.googleapis.com/css2?family=Lato:ital,wght@0,300;0,400;0,700;0,900;1,400;1,700&family=Yatra+One&display=swap');

:root {
  --bg-base: #080E1E;
  --bg-gradient: radial-gradient(ellipse at 50% 40%, #152244 0%, #080E1E 70%, #03060C 100%);
  --accent-gold: #FFD166;
  --accent-glow: rgba(255, 209, 102, 0.4);
  --secondary-warm: #F4A261;
  --text-main: #FFFFFF;
  --text-sub: rgba(255, 255, 255, 0.75);
  --text-muted: rgba(255, 255, 255, 0.45);
  --font-body: 'Lato', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-sanskrit: 'Yatra One', 'Lato', serif;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body, html {
  width: 100%;
  height: 100%;
  overflow: hidden;
  background-color: var(--bg-base);
  color: var(--text-main);
  font-family: var(--font-body);
  user-select: none;
  -webkit-font-smoothing: antialiased;
}

/* APP WRAPPER */
#app-stage {
  position: relative;
  width: 100vw;
  height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  overflow: hidden;
  background: var(--bg-gradient);
  transition: background 1.2s cubic-bezier(0.2, 0.8, 0.2, 1);
}

/* BACKGROUND LAYERS */
.bg-layer {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

/* Concept Artwork Backdrop */
#concept-backdrop {
  z-index: 1;
  background-size: cover;
  background-position: center 38%;
  opacity: 0.55;
  transition: opacity 1s ease, transform 25s ease-out, filter 1s ease;
  filter: contrast(112%) brightness(90%);
}

#concept-backdrop.breathing {
  transform: scale(1.04);
}

/* Style-specific backdrop filters & blend modes */
#app-stage.style-goldline #concept-backdrop {
  opacity: 0.62;
  mix-blend-mode: screen;
  filter: contrast(120%) brightness(100%);
}

#app-stage.style-fresco #concept-backdrop {
  opacity: 0.50;
  mix-blend-mode: lighten;
  filter: contrast(108%) brightness(88%) saturate(105%);
}

#app-stage.style-pencil #concept-backdrop {
  opacity: 0.45;
  mix-blend-mode: luminosity;
  filter: contrast(125%) brightness(82%);
}

#app-stage.style-cinematic #concept-backdrop {
  opacity: 0.58;
  mix-blend-mode: screen;
  filter: contrast(110%) brightness(88%);
}

/* Vector Graphic Visualizer Layer */
#vector-backdrop {
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0.45;
  transition: opacity 0.8s ease;
}

#vector-backdrop svg {
  width: 84vmin;
  height: 84vmin;
  filter: drop-shadow(0 0 45px var(--accent-glow));
}

/* Canvas for Floating Divine Light Particles */
#particle-canvas {
  z-index: 3;
  width: 100%;
  height: 100%;
}

/* Atmospheric Vignette & Gradients */
#vignette-overlay {
  z-index: 4;
  background: radial-gradient(circle at center, transparent 40%, rgba(3, 6, 12, 0.75) 85%, rgba(2, 4, 8, 0.95) 100%);
  pointer-events: none;
}

/* STAGE HEADER (Deity & Leela Context) */
#stage-header {
  position: relative;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 32px 56px 16px 56px;
  background: linear-gradient(to bottom, rgba(5, 9, 20, 0.85) 0%, transparent 100%);
}

.header-left {
  display: flex;
  align-items: center;
  gap: 16px;
}

.song-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 6px 14px;
  background: rgba(255, 209, 102, 0.12);
  border: 1px solid rgba(255, 209, 102, 0.35);
  border-radius: 20px;
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--accent-gold);
  text-transform: uppercase;
}

.deity-info {
  display: flex;
  flex-direction: column;
}

.deity-name {
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--text-main);
  display: flex;
  align-items: baseline;
  gap: 10px;
}

.deity-sanskrit {
  font-family: var(--font-sanskrit);
  font-size: 1.15rem;
  color: var(--accent-gold);
  opacity: 0.85;
}

.leela-title {
  font-size: 0.9rem;
  font-weight: 400;
  color: var(--text-sub);
  letter-spacing: 0.02em;
}

.header-right {
  display: flex;
  align-items: center;
  gap: 12px;
}

.style-switcher {
  display: flex;
  align-items: center;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 20px;
  padding: 3px;
  gap: 4px;
}

.style-pill {
  background: transparent;
  border: 1px solid transparent;
  color: var(--text-sub);
  padding: 6px 14px;
  border-radius: 16px;
  font-size: 0.8rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
  font-family: var(--font-body);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.style-pill:hover {
  color: #FFFFFF;
  background: rgba(255, 209, 102, 0.12);
}

.style-pill.active {
  background: rgba(255, 209, 102, 0.22);
  border-color: var(--accent-gold);
  color: #FFFFFF;
  box-shadow: 0 0 14px var(--accent-glow);
}

.hud-btn {
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.15);
  color: var(--text-sub);
  padding: 8px 16px;
  border-radius: 8px;
  cursor: pointer;
  font-family: var(--font-body);
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.03em;
  transition: all 0.2s ease;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.hud-btn:hover {
  background: rgba(255, 209, 102, 0.2);
  border-color: var(--accent-gold);
  color: #FFFFFF;
  box-shadow: 0 0 15px var(--accent-glow);
}

/* STAGE CENTER: LYRICS DISPLAY */
#stage-content {
  position: relative;
  z-index: 10;
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 20px 60px;
  text-align: center;
}

.lyrics-container {
  max-width: 1400px;
  width: auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 24px;
  padding: 32px 56px;
  background: radial-gradient(ellipse at center, rgba(6, 11, 24, 0.78) 0%, rgba(6, 11, 24, 0.45) 60%, transparent 100%);
  border-radius: 28px;
  backdrop-filter: blur(8px);
}

/* Lyric Line Styling */
.lyric-line {
  font-size: clamp(2.6rem, 5.5vw, 5.0rem);
  font-weight: 900;
  line-height: 1.22;
  letter-spacing: 0.015em;
  color: #FFFFFF;
  text-shadow: 
    0 3px 12px rgba(0, 0, 0, 0.95),
    0 6px 36px rgba(0, 0, 0, 0.9),
    0 0 50px rgba(255, 209, 102, 0.3);
  transition: all 0.35s cubic-bezier(0.2, 0.8, 0.2, 1);
  transform-origin: center;
}

.lyric-line.call {
  color: var(--accent-gold);
  font-weight: 700;
  font-size: clamp(2.0rem, 4.2vw, 3.8rem);
  text-shadow: 0 0 30px var(--accent-glow);
}

.lyric-line.chorus {
  color: #FFFFFF;
  font-weight: 900;
}

.repeat-symbol {
  color: var(--accent-gold);
  font-weight: 400;
  margin-left: 12px;
  letter-spacing: 0.1em;
  display: inline-block;
  transform: translateY(-2px);
  filter: drop-shadow(0 0 10px var(--accent-glow));
}

.cue-pill {
  display: inline-flex;
  align-items: center;
  padding: 4px 16px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 16px;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--secondary-warm);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-bottom: 8px;
}

/* STAGE FOOTER & PROGRESS */
#stage-footer {
  position: relative;
  z-index: 10;
  padding: 20px 56px 28px 56px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  background: linear-gradient(to top, rgba(5, 9, 20, 0.9) 0%, transparent 100%);
}

.footer-controls {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.slide-dots {
  display: flex;
  align-items: center;
  gap: 10px;
}

.dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.2);
  border: 1px solid rgba(255, 255, 255, 0.35);
  cursor: pointer;
  transition: all 0.3s ease;
}

.dot.active {
  width: 32px;
  border-radius: 8px;
  background: var(--accent-gold);
  border-color: var(--accent-gold);
  box-shadow: 0 0 14px var(--accent-glow);
}

.keyboard-hints {
  display: flex;
  align-items: center;
  gap: 16px;
  font-size: 0.8rem;
  color: var(--text-muted);
}

.keyboard-hints kbd {
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.2);
  padding: 2px 7px;
  border-radius: 4px;
  font-family: inherit;
  font-weight: 700;
  color: var(--text-sub);
}

/* SONG JUMP DRAWER / MODAL */
#song-drawer {
  position: absolute;
  inset: 0;
  z-index: 100;
  background: rgba(5, 9, 18, 0.94);
  backdrop-filter: blur(20px);
  display: flex;
  flex-direction: column;
  padding: 48px 80px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}

#song-drawer.open {
  opacity: 1;
  pointer-events: auto;
}

.drawer-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 32px;
  padding-bottom: 20px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
}

.drawer-title {
  font-size: 1.8rem;
  font-weight: 900;
  color: var(--accent-gold);
  letter-spacing: 0.04em;
}

.song-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 20px;
  overflow-y: auto;
  padding-right: 12px;
}

.song-card {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.09);
  border-radius: 12px;
  padding: 20px;
  cursor: pointer;
  transition: all 0.25s ease;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.song-card:hover {
  background: rgba(255, 209, 102, 0.1);
  border-color: var(--accent-gold);
  transform: translateY(-3px);
  box-shadow: 0 8px 24px var(--accent-glow);
}

.song-card.active {
  border-color: var(--accent-gold);
  background: rgba(255, 209, 102, 0.16);
  box-shadow: 0 0 20px var(--accent-glow);
}

.card-num {
  font-size: 0.8rem;
  font-weight: 900;
  color: var(--accent-gold);
  letter-spacing: 0.08em;
}

.card-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: #FFFFFF;
}

.card-deity {
  font-size: 0.85rem;
  color: var(--text-sub);
}

/* BLACKOUT / BLANK SCREEN MODE */
#app-stage.blackout #stage-content,
#app-stage.blackout #stage-header,
#app-stage.blackout #stage-footer,
#app-stage.blackout #concept-backdrop,
#app-stage.blackout #vector-backdrop {
  opacity: 0;
  transition: opacity 0.5s ease;
}

/* SACRED GEOMETRY KINETIC ANIMATIONS */
@keyframes rotateCW {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

@keyframes rotateCCW {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(-360deg); }
}

@keyframes pranaBreathing {
  0%, 100% {
    transform: scale(0.95);
    opacity: 0.35;
  }
  50% {
    transform: scale(1.05);
    opacity: 0.70;
  }
}

@keyframes pulseSubtle {
  0%, 100% { opacity: 0.45; }
  50% { opacity: 0.85; }
}

.mandala-cw {
  transform-origin: 500px 450px;
  animation: rotateCW 120s linear infinite;
}

.mandala-ccw {
  transform-origin: 500px 450px;
  animation: rotateCCW 80s linear infinite;
}

.prana-breath {
  transform-origin: 500px 450px;
  animation: pranaBreathing 5.5s ease-in-out infinite;
}