/* ─── Imports ──────────────────────────────────────────── */
@import url('https://fonts.googleapis.com/css2?family=Playfair+Display:ital,wght@0,400;0,500;0,600;1,400;1,500&family=Inter:wght@300;400;500&display=swap');

/* ─── Base ─────────────────────────────────────────────── */
body {
  background-color: var(--color-bg);
  color: var(--color-text-primary);
  font-family: var(--font-body);
  font-weight: 300;
  min-height: 100dvh;
  overflow: hidden;
  position: relative;
}

/* ─── Ambient Background ───────────────────────────────── */
.ambient-bg {
  position: fixed;
  inset: 0;
  z-index: var(--z-bg);
  overflow: hidden;
}

.ambient-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0;
  transition: background-color var(--transition-ambient),
              opacity var(--transition-ambient),
              transform var(--transition-ambient);
  will-change: transform, opacity, background-color;
  pointer-events: none;
}

.ambient-orb--1 {
  width: min(70vw, 600px);
  height: min(70vw, 600px);
  top: -20%;
  left: -10%;
  background: var(--color-accent);
  opacity: 0.12;
  animation: orbFloat1 20s ease-in-out infinite;
}

.ambient-orb--2 {
  width: min(50vw, 440px);
  height: min(50vw, 440px);
  bottom: -15%;
  right: -10%;
  background: var(--color-accent-secondary);
  opacity: 0.1;
  animation: orbFloat2 25s ease-in-out infinite;
}

.ambient-orb--3 {
  width: min(35vw, 300px);
  height: min(35vw, 300px);
  top: 40%;
  left: 50%;
  transform: translateX(-50%);
  background: var(--color-accent);
  opacity: 0.06;
  animation: orbFloat3 18s ease-in-out infinite;
}

@keyframes orbFloat1 {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33%       { transform: translate(4%, 6%) scale(1.05); }
  66%       { transform: translate(-3%, 3%) scale(0.97); }
}

@keyframes orbFloat2 {
  0%, 100% { transform: translate(0, 0) scale(1); }
  40%       { transform: translate(-5%, -4%) scale(1.08); }
  70%       { transform: translate(3%, -7%) scale(0.95); }
}

@keyframes orbFloat3 {
  0%, 100% { transform: translateX(-50%) scale(1); }
  50%       { transform: translateX(-50%) scale(1.12); }
}

/* ─── Start Overlay ────────────────────────────────────── */
.start-overlay {
  position: fixed;
  inset: 0;
  z-index: var(--z-overlay);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: var(--color-bg);
  cursor: pointer;
  transition: opacity 0.8s ease;
}

.start-overlay.hidden {
  opacity: 0;
  pointer-events: none;
}

.start-overlay__logo {
  font-family: var(--font-display);
  font-size: clamp(2rem, 6vw, 3.5rem);
  font-weight: 400;
  letter-spacing: -0.02em;
  color: var(--color-text-primary);
  margin-bottom: var(--space-lg);
}

.start-overlay__hint {
  font-size: 0.8rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  animation: pulse-fade 2s ease-in-out infinite;
}

.start-overlay__globe {
  font-size: 3rem;
  margin-bottom: var(--space-xl);
  opacity: 0.6;
  animation: spin-slow 8s linear infinite;
}

@keyframes spin-slow {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

@keyframes pulse-fade {
  0%, 100% { opacity: 0.3; }
  50% { opacity: 0.8; }
}

/* ─── Main Layout ──────────────────────────────────────── */
.app {
  position: relative;
  z-index: var(--z-content);
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-lg) var(--space-md);
  max-width: 100%;
}

/* ─── Top Bar (Nav) ────────────────────────────────────── */
.topbar {
  width: 100%;
  max-width: var(--max-width);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-sm) 0;
}

.topbar__logo {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 500;
  letter-spacing: 0.02em;
  color: var(--color-text-secondary);
  transition: color var(--transition-base);
}

.topbar__logo:hover {
  color: var(--color-text-primary);
}

.topbar__nav {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.topbar__link {
  font-size: 0.75rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  transition: color var(--transition-fast);
  padding: var(--space-xs) var(--space-sm);
}

.topbar__link:hover {
  color: var(--color-text-secondary);
}

/* ─── Player Stage ─────────────────────────────────────── */
.player-stage {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  width: 100%;
  max-width: var(--max-width);
  text-align: center;
  gap: var(--space-lg);
  padding: var(--space-xl) 0;
}

/* Playing indicator */
.playing-indicator {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  color: var(--color-text-muted);
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  transition: opacity var(--transition-base);
}

.playing-indicator__dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-accent);
  box-shadow: 0 0 8px var(--color-accent);
  transition: background var(--transition-ambient),
              box-shadow var(--transition-ambient);
}

.playing-indicator__dot.active {
  animation: pulse-dot 2s ease-in-out infinite;
}

.playing-indicator__dot.paused {
  animation: none;
  opacity: 0.4;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(0.8); }
}

/* Station identity */
.station-identity {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-sm);
}

.station-name {
  font-family: var(--font-display);
  font-size: clamp(2.4rem, 8vw, 5.5rem);
  font-weight: 400;
  line-height: 1.05;
  letter-spacing: -0.03em;
  color: var(--color-text-primary);
  transition: opacity 0.4s ease, transform 0.4s ease;
  cursor: default;
  max-width: min(92vw, 860px);
  text-align: center;
  text-wrap: balance;
}

.station-name.is-long {
  font-size: clamp(2rem, 7vw, 4.4rem);
  line-height: 1.08;
}

.station-name.is-very-long {
  font-size: clamp(1.6rem, 5.8vw, 3.3rem);
  line-height: 1.1;
}

.station-name.is-ultra-long {
  font-size: clamp(1.3rem, 4.9vw, 2.6rem);
  line-height: 1.12;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.station-name.transitioning {
  opacity: 0;
  transform: translateY(-8px);
}

.station-location {
  font-size: clamp(0.75rem, 2vw, 0.9rem);
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-text-secondary);
  transition: opacity 0.4s ease 0.1s;
}

.station-location.transitioning {
  opacity: 0;
}

.station-genre {
  display: inline-flex;
  align-items: center;
  padding: 4px 12px;
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-full);
  font-size: 0.65rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  background: var(--color-surface);
  transition: border-color var(--transition-ambient);
}

/* Track metadata scroll */
.track-meta {
  width: 100%;
  overflow: hidden;
  height: 1.5rem;
  position: relative;
  mask-image: linear-gradient(to right, transparent 0%, black 8%, black 92%, transparent 100%);
}

.track-meta__inner {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xl);
  white-space: nowrap;
  animation: marquee 24s linear infinite;
  will-change: transform;
}

.track-meta__item {
  font-size: 0.8rem;
  color: var(--color-text-secondary);
  display: flex;
  align-items: center;
  gap: var(--space-xs);
}

.track-meta__item::before {
  content: '•';
  opacity: 0.42;
  font-size: 0.7rem;
}

@keyframes marquee {
  from { transform: translateX(0); }
  to   { transform: translateX(-50%); }
}

/* Local time / mood label */
.station-context {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
  font-size: 0.72rem;
  color: var(--color-text-secondary);
  letter-spacing: 0.08em;
}

.station-context__item {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
}

/* ─── Controls ─────────────────────────────────────────── */
.controls {
  width: 100%;
  max-width: var(--max-width);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-lg);
  padding-bottom: var(--space-md);
}

/* Next Station — primary CTA */
.btn-next {
  position: relative;
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: 16px 40px;
  border-radius: var(--border-radius-full);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  color: var(--color-text-primary);
  font-family: var(--font-body);
  font-size: 0.85rem;
  font-weight: 400;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  transition: background var(--transition-base),
              border-color var(--transition-base),
              transform var(--transition-fast),
              box-shadow var(--transition-base);
  overflow: hidden;
  cursor: pointer;
}

.btn-next::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at center, var(--color-accent-glow) 0%, transparent 70%);
  opacity: 0;
  transition: opacity var(--transition-base);
}

.btn-next:hover::before {
  opacity: 1;
}

.btn-next:hover {
  border-color: rgba(255, 255, 255, 0.2);
  transform: translateY(-1px);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4), 0 0 24px var(--color-accent-glow);
}

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

.btn-next.loading {
  pointer-events: none;
}

.btn-next__icon {
  font-size: 1rem;
  transition: transform var(--transition-base);
}

.btn-next:hover .btn-next__icon {
  transform: translateX(3px);
}

/* Secondary controls row */
.controls-row {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-xl);
}

.like-wrap {
  display: inline-flex;
  align-items: center;
  gap: 10px;
}

.like-votes {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 94px;
  padding: 6px 10px;
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-full);
  background: var(--color-surface);
  font-size: 0.65rem;
  color: var(--color-text-secondary);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  line-height: 1;
  white-space: nowrap;
}

.ctrl-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  color: var(--color-text-secondary);
  font-size: 1.1rem;
  transition: color var(--transition-fast),
              background var(--transition-fast),
              transform var(--transition-fast);
  position: relative;
}

.ctrl-btn:hover {
  color: var(--color-text-primary);
  background: var(--color-surface-hover);
}

.ctrl-btn:active {
  transform: scale(0.92);
}

.ctrl-btn--play {
  width: 56px;
  height: 56px;
  font-size: 1.2rem;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
}

.ctrl-btn--play:hover {
  border-color: rgba(255, 255, 255, 0.2);
  background: var(--color-surface-hover);
}

.ctrl-btn--like.liked {
  color: #ff6b9d;
}

/* Volume control */
.volume-wrap {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.volume-icon {
  color: var(--color-text-muted);
  font-size: 0.9rem;
  width: 20px;
  text-align: center;
}

.volume-slider {
  -webkit-appearance: none;
  appearance: none;
  width: 80px;
  height: 3px;
  background: var(--color-border);
  border-radius: 2px;
  outline: none;
  cursor: pointer;
  transition: background var(--transition-fast);
}

.volume-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--color-text-secondary);
  cursor: pointer;
  transition: background var(--transition-fast), transform var(--transition-fast);
}

.volume-slider::-webkit-slider-thumb:hover {
  background: var(--color-text-primary);
  transform: scale(1.2);
}

.volume-slider::-moz-range-thumb {
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--color-text-secondary);
  border: none;
  cursor: pointer;
}

/* ─── Error / Loading States ───────────────────────────── */
.status-banner {
  position: fixed;
  bottom: var(--space-xl);
  left: 50%;
  transform: translateX(-50%) translateY(100px);
  background: rgba(20, 18, 35, 0.9);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-md);
  padding: var(--space-sm) var(--space-lg);
  font-size: 0.75rem;
  color: var(--color-text-secondary);
  letter-spacing: 0.05em;
  backdrop-filter: blur(12px);
  z-index: var(--z-overlay);
  transition: transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
  white-space: nowrap;
  pointer-events: none;
}

.status-banner.visible {
  transform: translateX(-50%) translateY(0);
}

/* ─── Transition Curtain ───────────────────────────────── */
.transition-curtain {
  position: fixed;
  inset: 0;
  z-index: 50;
  background: var(--color-bg);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.35s ease;
}

.transition-curtain.active {
  opacity: 0.7;
  pointer-events: all;
}

/* ─── Liked stations toast ─────────────────────────────── */
.like-toast {
  position: fixed;
  top: var(--space-lg);
  left: 50%;
  transform: translateX(-50%) translateY(-60px);
  background: rgba(20, 18, 35, 0.95);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-full);
  padding: 8px 20px;
  font-size: 0.75rem;
  color: var(--color-text-secondary);
  backdrop-filter: blur(12px);
  z-index: var(--z-overlay);
  transition: transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
  pointer-events: none;
}

.like-toast.visible {
  transform: translateX(-50%) translateY(0);
}

/* ─── Visualizer bars ──────────────────────────────────── */
.visualizer {
  display: flex;
  align-items: flex-end;
  gap: 3px;
  height: 20px;
  opacity: 0;
  transition: opacity var(--transition-base);
}

.visualizer.active {
  opacity: 1;
}

.visualizer__bar {
  width: 3px;
  border-radius: 2px;
  background: var(--color-accent);
  transition: background var(--transition-ambient);
  transform-origin: bottom;
  animation: bar-bounce 0s ease-in-out infinite alternate;
}

.visualizer__bar:nth-child(1) { animation-duration: 0.7s; }
.visualizer__bar:nth-child(2) { animation-duration: 0.9s; }
.visualizer__bar:nth-child(3) { animation-duration: 0.6s; }
.visualizer__bar:nth-child(4) { animation-duration: 1.1s; }
.visualizer__bar:nth-child(5) { animation-duration: 0.8s; }

@keyframes bar-bounce {
  from { transform: scaleY(0.15); }
  to   { transform: scaleY(1); }
}

/* ─── Responsive ───────────────────────────────────────── */
@media (max-width: 480px) {
  .app {
    padding: var(--space-md) var(--space-md);
  }

  .volume-wrap {
    display: none;
  }

  .controls-row {
    gap: var(--space-lg);
  }

  .like-votes {
    min-width: 84px;
    font-size: 0.6rem;
    padding: 6px 8px;
  }

  .station-context {
    flex-direction: column;
    gap: var(--space-sm);
  }
}

@media (max-height: 600px) {
  .player-stage {
    gap: var(--space-md);
    padding: var(--space-md) 0;
  }

  .station-name {
    font-size: clamp(2rem, 6vw, 3.5rem);
  }

  .track-meta {
    display: none;
  }
}

/* ─── Weather widget ───────────────────────────────────── */
.weather-widget {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 4px 12px 4px 8px;
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-full);
  background: rgba(18, 16, 32, 0.7);
  backdrop-filter: blur(10px);
  font-size: 0.7rem;
  color: var(--color-text-secondary);
  letter-spacing: 0.06em;
  opacity: 0;
  transition: opacity 0.7s ease;
  pointer-events: none;
  white-space: nowrap;
}

.weather-widget.visible {
  opacity: 1;
}

.weather-widget__icon {
  font-size: 0.8rem;
  line-height: 1;
}

.weather-widget__temp {
  color: var(--color-text-primary);
  font-weight: 400;
}

.weather-widget__cond {
  color: var(--color-text-secondary);
}

/* ─── Weather canvas (rain / snow / stars) ─────────────── */
.weather-canvas {
  position: fixed;
  inset: 0;
  z-index: 2;
  pointer-events: none;
  opacity: 0;
  transition: opacity 1.4s ease;
}

.weather-canvas.active {
  opacity: 1;
}

/* ─── Weather overlay (sun / fog / storm) ──────────────── */
.weather-overlay {
  position: fixed;
  inset: 0;
  z-index: 2;
  pointer-events: none;
}

/* Sunny: warm glow from upper-right */
.weather-overlay.wx-sun {
  background: radial-gradient(
    ellipse 70% 50% at 80% -8%,
    rgba(255, 210, 80, 0.09) 0%,
    rgba(255, 160, 40, 0.04) 45%,
    transparent 70%
  );
  animation: wx-sun-breathe 9s ease-in-out infinite;
}

@keyframes wx-sun-breathe {
  0%, 100% { opacity: 1; }
  50%       { opacity: 0.65; }
}

/* Foggy: drifting white mist */
.weather-overlay.wx-fog {
  background: radial-gradient(
    ellipse 160% 90% at 50% 60%,
    rgba(210, 220, 235, 0.06) 0%,
    rgba(180, 195, 215, 0.02) 55%,
    transparent 80%
  );
  animation: wx-fog-drift 16s ease-in-out infinite alternate;
}

@keyframes wx-fog-drift {
  from { opacity: 0.7; transform: translateX(-1.5%); }
  to   { opacity: 1;   transform: translateX(1.5%); }
}

/* Stormy: dark bruised-sky tint at top */
.weather-overlay.wx-storm {
  background: linear-gradient(
    to bottom,
    rgba(15, 20, 45, 0.28) 0%,
    transparent 55%
  );
}

/* ─── Lightning flash ──────────────────────────────────── */
.lightning-flash {
  position: fixed;
  inset: 0;
  z-index: 3;
  pointer-events: none;
  background: rgba(200, 218, 255, 0.22);
  opacity: 0;
  transition: opacity 0.04s linear;
}

.lightning-flash.active {
  opacity: 1;
}

/* ─── Reduced motion ───────────────────────────────────── */
@media (prefers-reduced-motion: reduce) {
  .ambient-orb,
  .track-meta__inner,
  .visualizer__bar,
  .start-overlay__globe {
    animation: none;
  }

  .playing-indicator__dot.active {
    animation: none;
    opacity: 1;
  }
}