/* =====================================================
   NOIRBYTE — CSS Design System
   Dark Glassmorphism + Neon Gradients
   ===================================================== */

@import url('https://fonts.googleapis.com/css2?family=Orbitron:wght@400;600;700;900&family=Inter:wght@300;400;500;600&display=swap');

/* ─── Variables ─────────────────────────────────────── */
:root {
  --bg-deep:        #07070a;
  --bg-mid:         #0c0c12;
  --bg-card:        rgba(255, 255, 255, 0.04);
  --bg-card-hover:  rgba(255, 255, 255, 0.08);
  --glass-border:   rgba(255, 255, 255, 0.08);
  --glass-border-hover: rgba(0, 240, 255, 0.35);

  --cyan:    #00f0ff;
  --purple:  #bd00ff;
  --pink:    #ff007f;
  --cyan-dim:   rgba(0, 240, 255, 0.15);
  --purple-dim: rgba(189, 0, 255, 0.15);
  --pink-dim:   rgba(255, 0, 127, 0.15);

  --text-primary:   #f0f0f5;
  --text-secondary: #8888aa;
  --text-muted:     #55556a;

  --font-display: 'Orbitron', sans-serif;
  --font-body:    'Inter', sans-serif;

  --radius-sm:  8px;
  --radius-md:  16px;
  --radius-lg:  24px;
  --radius-xl:  40px;

  --blur-glass: blur(20px) saturate(180%);
  --blur-light: blur(8px);

  --transition-fast:   0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-smooth: 0.4s cubic-bezier(0.4, 0, 0.2, 1);

  --player-height: 90px;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  background-color: var(--bg-deep);
  color: var(--text-primary);
  font-family: var(--font-body);
  line-height: 1.6;
  overflow-x: hidden;
  padding-bottom: var(--player-height);
}

img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { cursor: pointer; border: none; background: none; font-family: var(--font-body); }
ul { list-style: none; }

::selection {
  background: var(--purple-dim);
  color: var(--cyan);
}

/* ─── Scrollbar ──────────────────────────────────────── */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg-deep); }
::-webkit-scrollbar-thumb {
  background: linear-gradient(180deg, var(--cyan), var(--purple));
  border-radius: 3px;
}

/* ─── Keyframes ──────────────────────────────────────── */
@keyframes glow-pulse {
  0%, 100% { filter: drop-shadow(0 0 12px var(--cyan)) drop-shadow(0 0 24px var(--purple)); }
  50%       { filter: drop-shadow(0 0 24px var(--cyan)) drop-shadow(0 0 48px var(--purple)); }
}

@keyframes float {
  0%, 100% { transform: translateY(0px); }
  50%       { transform: translateY(-12px); }
}

@keyframes fade-in-up {
  from { opacity: 0; transform: translateY(40px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes fade-in {
  from { opacity: 0; }
  to   { opacity: 1; }
}

@keyframes gradient-shift {
  0%   { background-position: 0% 50%; }
  50%  { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

/* ─── Utility ────────────────────────────────────────── */
.neon-text {
  background: linear-gradient(90deg, var(--cyan), var(--purple), var(--pink));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.glass-card {
  background: var(--bg-card);
  border: 1px solid var(--glass-border);
  backdrop-filter: var(--blur-glass);
  -webkit-backdrop-filter: var(--blur-glass);
  border-radius: var(--radius-md);
  transition: border-color var(--transition-fast), background var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast);
}

.glass-card:hover {
  border-color: var(--glass-border-hover);
  background: var(--bg-card-hover);
  transform: translateY(-4px);
  box-shadow: 0 16px 48px rgba(0, 240, 255, 0.1);
}

.section-tag {
  display: inline-block;
  font-family: var(--font-display);
  font-size: 0.65rem;
  font-weight: 600;
  letter-spacing: 4px;
  text-transform: uppercase;
  color: var(--cyan);
  border: 1px solid var(--cyan-dim);
  padding: 5px 16px;
  border-radius: 100px;
  margin-bottom: 16px;
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 4vw, 3rem);
  font-weight: 900;
  line-height: 1.1;
  margin-bottom: 8px;
}

.section-subtitle {
  color: var(--text-secondary);
  font-size: 1rem;
  margin-bottom: 48px;
}

.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ─── Navigation ─────────────────────────────────────── */
#navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 20px 48px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  transition: all var(--transition-smooth);
}

#navbar.scrolled {
  background: rgba(7, 7, 10, 0.88);
  backdrop-filter: var(--blur-glass);
  -webkit-backdrop-filter: var(--blur-glass);
  border-bottom: 1px solid var(--glass-border);
  padding: 14px 48px;
}

.nav-logo {
  height: 36px;
  width: auto;
  filter: brightness(1.1);
  transition: filter var(--transition-fast);
}
.nav-logo:hover { filter: brightness(1.4) drop-shadow(0 0 8px var(--cyan)); }

.nav-links {
  display: flex;
  gap: 36px;
}

.nav-links a {
  font-family: var(--font-display);
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--text-secondary);
  transition: color var(--transition-fast);
  position: relative;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 1px;
  background: linear-gradient(90deg, var(--cyan), var(--purple));
  transition: width var(--transition-smooth);
}

.nav-links a:hover { color: var(--text-primary); }
.nav-links a:hover::after { width: 100%; }

/* ─── Hero Section ───────────────────────────────────── */
#hero {
  position: relative;
  width: 100vw;
  max-width: 100vw;
  height: 100vh;
  min-height: 600px;
  margin: 0;
  padding: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

#hero-video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 0;
  opacity: 0.55;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to bottom,
    rgba(7, 7, 10, 0.3) 0%,
    rgba(7, 7, 10, 0.1) 40%,
    rgba(7, 7, 10, 0.7) 80%,
    var(--bg-deep) 100%
  );
  z-index: 1;
}

.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 24px;
  animation: fade-in 1.2s ease forwards;
}

#hero-logo {
  width: clamp(180px, 32vw, 400px);
  height: auto;
  animation: glow-pulse 3s ease-in-out infinite, float 6s ease-in-out infinite;
}

.hero-tagline {
  font-family: var(--font-display);
  font-size: clamp(0.55rem, 1.4vw, 0.82rem);
  letter-spacing: 8px;
  text-transform: uppercase;
  color: var(--text-secondary);
}

.hero-genres {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  justify-content: center;
}

.genre-badge {
  font-family: var(--font-display);
  font-size: 0.62rem;
  font-weight: 600;
  letter-spacing: 3px;
  text-transform: uppercase;
  padding: 6px 18px;
  border-radius: 100px;
  border: 1px solid;
  backdrop-filter: var(--blur-light);
}

.genre-badge.trance  { color: var(--cyan);   border-color: var(--cyan);   background: var(--cyan-dim);   }
.genre-badge.house   { color: var(--purple); border-color: var(--purple); background: var(--purple-dim); }
.genre-badge.techno  { color: var(--pink);   border-color: var(--pink);   background: var(--pink-dim);   }

.hero-cta {
  margin-top: 12px;
  padding: 14px 40px;
  border-radius: 100px;
  font-family: var(--font-display);
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--bg-deep);
  background: linear-gradient(135deg, var(--cyan), var(--purple));
  box-shadow: 0 0 24px rgba(0, 240, 255, 0.4), 0 0 48px rgba(189, 0, 255, 0.2);
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
  display: inline-block;
}

.hero-cta:hover {
  transform: scale(1.06);
  box-shadow: 0 0 36px rgba(0, 240, 255, 0.6), 0 0 72px rgba(189, 0, 255, 0.4);
}

.scroll-indicator {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: var(--text-muted);
  font-size: 0.62rem;
  letter-spacing: 3px;
  font-family: var(--font-display);
  text-transform: uppercase;
  animation: float 2s ease-in-out infinite;
}

.scroll-arrow {
  width: 20px;
  height: 20px;
  border-right: 2px solid var(--text-muted);
  border-bottom: 2px solid var(--text-muted);
  transform: rotate(45deg);
  margin-top: -4px;
}

/* ─── Sections Common ────────────────────────────────── */
section {
  padding: 100px 48px;
  max-width: 1200px;
  margin: 0 auto;
}

/* ─── About Section ──────────────────────────────────── */
#about { padding-top: 80px; }

.about-grid {
  display: grid;
  grid-template-columns: 3fr 2fr;
  gap: 48px;
  align-items: start;
}

.about-bio {
  font-size: 1.05rem;
  color: var(--text-secondary);
  line-height: 1.9;
}

.about-bio p + p { margin-top: 18px; }

.about-bio strong {
  color: var(--text-primary);
  font-weight: 600;
}

.about-genres {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.genre-card {
  padding: 22px 26px;
  border-radius: var(--radius-md);
  position: relative;
  overflow: hidden;
}

.genre-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0;
  width: 3px; height: 100%;
}

.genre-card.trance::before  { background: var(--cyan);   }
.genre-card.house::before   { background: var(--purple); }
.genre-card.techno::before  { background: var(--pink);   }

.genre-card h3 {
  font-family: var(--font-display);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 3px;
  text-transform: uppercase;
  margin-bottom: 8px;
}

.genre-card.trance h3  { color: var(--cyan);   }
.genre-card.house h3   { color: var(--purple); }
.genre-card.techno h3  { color: var(--pink);   }

.genre-card p {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.65;
}

/* ─── Music Section ──────────────────────────────────── */
#music { padding-top: 80px; }

.music-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
}

.ep-card {
  border-radius: var(--radius-lg);
  overflow: hidden;
  padding: 0;
}

.ep-cover-wrap {
  position: relative;
  aspect-ratio: 1;
  overflow: hidden;
}

.ep-cover-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}

.ep-card:hover .ep-cover-wrap img { transform: scale(1.05); }

.ep-cover-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom, transparent 40%, rgba(7, 7, 10, 0.95) 100%);
  display: flex;
  align-items: flex-end;
  padding: 24px;
}

.ep-info { display: flex; flex-direction: column; gap: 4px; }

.ep-label {
  font-family: var(--font-display);
  font-size: 0.58rem;
  letter-spacing: 4px;
  text-transform: uppercase;
  color: var(--cyan);
}

.ep-title {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 900;
  color: var(--text-primary);
}

.ep-tracklist {
  padding: 14px 16px 20px;
  display: flex;
  flex-direction: column;
  gap: 3px;
}

.track-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 12px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: background var(--transition-fast), border-color var(--transition-fast);
  border: 1px solid transparent;
}

.track-item:hover {
  background: rgba(0, 240, 255, 0.06);
  border-color: rgba(0, 240, 255, 0.15);
}

.track-item.active {
  background: rgba(0, 240, 255, 0.1);
  border-color: rgba(0, 240, 255, 0.3);
}

.track-num {
  font-family: var(--font-display);
  font-size: 0.68rem;
  color: var(--text-muted);
  width: 18px;
  text-align: center;
  flex-shrink: 0;
}

.track-play-icon {
  display: none;
  width: 14px;
  height: 14px;
  fill: var(--cyan);
  flex-shrink: 0;
}

.track-item:hover .track-num { display: none; }
.track-item:hover .track-play-icon { display: block; }
.track-item.active .track-num { display: none; }
.track-item.active .track-play-icon { display: block; fill: var(--cyan); }

.track-name {
  flex: 1;
  font-size: 0.88rem;
  color: var(--text-secondary);
  transition: color var(--transition-fast);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.track-item:hover .track-name,
.track-item.active .track-name { color: var(--text-primary); }

.track-duration {
  font-size: 0.72rem;
  font-family: var(--font-display);
  color: var(--text-muted);
  flex-shrink: 0;
}

/* ─── Sticky Player ──────────────────────────────────── */
#sticky-player {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 999;
  height: var(--player-height);
  background: rgba(7, 7, 10, 0.94);
  backdrop-filter: var(--blur-glass);
  -webkit-backdrop-filter: var(--blur-glass);
  border-top: 1px solid var(--glass-border);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

#sticky-player::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--cyan), var(--purple), var(--pink), var(--cyan));
  background-size: 200% 100%;
  animation: gradient-shift 4s linear infinite;
}

.player-progress-wrap {
  width: 100%;
  height: 4px;
  position: relative;
  cursor: pointer;
  flex-shrink: 0;
}

.player-progress-bg {
  position: absolute;
  inset: 0;
  background: rgba(255, 255, 255, 0.07);
}

.player-progress-fill {
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 0%;
  background: linear-gradient(90deg, var(--cyan), var(--purple));
  pointer-events: none;
}

.player-progress-thumb {
  position: absolute;
  top: 50%;
  width: 12px; height: 12px;
  background: var(--cyan);
  border-radius: 50%;
  box-shadow: 0 0 8px var(--cyan);
  transform: translate(-50%, -50%) scale(0);
  transition: transform var(--transition-fast);
  pointer-events: none;
}

.player-progress-wrap:hover .player-progress-thumb { transform: translate(-50%, -50%) scale(1); }

.player-main {
  flex: 1;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  padding: 0 24px;
  gap: 16px;
}

.player-info {
  display: flex;
  align-items: center;
  gap: 14px;
  min-width: 0;
}

.player-cover {
  width: 46px;
  height: 46px;
  border-radius: 6px;
  object-fit: cover;
  flex-shrink: 0;
  border: 1px solid var(--glass-border);
  box-shadow: 0 0 12px rgba(0, 240, 255, 0.2);
}

.player-track-text { min-width: 0; }

.player-track-name {
  font-size: 0.86rem;
  font-weight: 600;
  color: var(--text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.player-track-ep {
  font-family: var(--font-display);
  font-size: 0.6rem;
  letter-spacing: 2px;
  color: var(--text-muted);
  text-transform: uppercase;
}

.player-controls {
  display: flex;
  align-items: center;
  gap: 16px;
}

.player-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px; height: 36px;
  border-radius: 50%;
  color: var(--text-secondary);
  transition: color var(--transition-fast), transform var(--transition-fast);
}

.player-btn:hover { color: var(--text-primary); transform: scale(1.15); }
.player-btn svg { width: 18px; height: 18px; fill: currentColor; }

#btn-play-pause {
  width: 48px; height: 48px;
  background: linear-gradient(135deg, var(--cyan), var(--purple));
  color: var(--bg-deep);
  box-shadow: 0 0 16px rgba(0, 240, 255, 0.4);
  border-radius: 50%;
}

#btn-play-pause:hover {
  transform: scale(1.1);
  box-shadow: 0 0 28px rgba(0, 240, 255, 0.7);
}

#btn-play-pause svg { width: 20px; height: 20px; fill: var(--bg-deep); }

.player-time {
  font-family: var(--font-display);
  font-size: 0.6rem;
  color: var(--text-muted);
  letter-spacing: 1px;
  white-space: nowrap;
}

.player-right {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 12px;
}

.volume-wrap {
  display: flex;
  align-items: center;
  gap: 8px;
}

.volume-btn {
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  transition: color var(--transition-fast);
  background: none;
  border: none;
  cursor: pointer;
}
.volume-btn:hover { color: var(--cyan); }
.volume-btn svg { width: 16px; height: 16px; fill: currentColor; }

input[type="range"].volume-slider {
  -webkit-appearance: none;
  appearance: none;
  width: 80px;
  height: 3px;
  background: rgba(255,255,255,0.1);
  border-radius: 3px;
  outline: none;
}

input[type="range"].volume-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 11px; height: 11px;
  border-radius: 50%;
  background: var(--cyan);
  cursor: pointer;
  box-shadow: 0 0 6px var(--cyan);
}

#player-visualizer {
  width: 56px;
  height: 30px;
  flex-shrink: 0;
}

/* ─── Contact Section ────────────────────────────────── */
#contact { padding-top: 80px; }

.contact-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

/* Last item (Ubicación) spans full row */
.contact-card-location {
  grid-column: 1 / -1;
}

.contact-card {
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 24px 28px;
  border-radius: var(--radius-md);
  text-decoration: none;
  color: var(--text-primary);
  transition: border-color var(--transition-fast), background var(--transition-fast),
              transform var(--transition-fast), box-shadow var(--transition-fast);
  cursor: pointer;
}

.contact-card:hover {
  transform: translateY(-5px);
}

/* Icon wrapper */
.contact-card-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 52px;
  height: 52px;
  border-radius: var(--radius-sm);
  flex-shrink: 0;
  transition: box-shadow var(--transition-fast);
}

.contact-card-icon svg {
  width: 26px;
  height: 26px;
}

/* Per-platform icon colors */
.contact-icon-whatsapp {
  background: rgba(37, 211, 102, 0.15);
  color: #25d366;
}
.contact-card:hover .contact-icon-whatsapp {
  box-shadow: 0 0 20px rgba(37, 211, 102, 0.4);
}

.contact-icon-instagram {
  background: rgba(225, 48, 108, 0.15);
  color: #e1306c;
}
.contact-card:hover .contact-icon-instagram {
  box-shadow: 0 0 20px rgba(225, 48, 108, 0.4);
}

.contact-icon-spotify {
  background: rgba(30, 215, 96, 0.15);
  color: #1ed760;
}
.contact-card:hover .contact-icon-spotify {
  box-shadow: 0 0 20px rgba(30, 215, 96, 0.4);
}

.contact-icon-youtube {
  background: rgba(255, 0, 0, 0.12);
  color: #ff4444;
}
.contact-card:hover .contact-icon-youtube {
  box-shadow: 0 0 20px rgba(255, 0, 0, 0.35);
}

.contact-icon-location {
  background: var(--cyan-dim);
  color: var(--cyan);
}
.contact-card-location:hover .contact-icon-location {
  box-shadow: 0 0 20px rgba(0, 240, 255, 0.4);
}

/* Hover glow per card type */
#contact-whatsapp:hover  { border-color: rgba(37, 211, 102, 0.4); box-shadow: 0 12px 40px rgba(37, 211, 102, 0.1); }
#contact-instagram:hover { border-color: rgba(225, 48, 108, 0.4); box-shadow: 0 12px 40px rgba(225, 48, 108, 0.1); }
#contact-spotify:hover   { border-color: rgba(30, 215, 96, 0.4);  box-shadow: 0 12px 40px rgba(30, 215, 96, 0.1); }
#contact-youtube:hover   { border-color: rgba(255, 68, 68, 0.4);  box-shadow: 0 12px 40px rgba(255, 68, 68, 0.1); }
#contact-location:hover  { border-color: rgba(0, 240, 255, 0.3);  box-shadow: 0 12px 40px rgba(0, 240, 255, 0.08); }

/* Card text */
.contact-card-body {
  display: flex;
  flex-direction: column;
  gap: 3px;
  min-width: 0;
}

.contact-card-title {
  font-family: var(--font-display);
  font-size: 0.88rem;
  font-weight: 700;
  letter-spacing: 1px;
  color: var(--text-primary);
}

.contact-card-subtitle {
  font-size: 0.82rem;
  color: var(--text-secondary);
}

.contact-card-action {
  font-family: var(--font-display);
  font-size: 0.65rem;
  letter-spacing: 1.5px;
  color: var(--text-muted);
  text-transform: uppercase;
  margin-top: 4px;
  transition: color var(--transition-fast);
}

.contact-card:hover .contact-card-action { color: var(--cyan); }

.contact-card-detail {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: 4px;
  line-height: 1.4;
}

/* ─── Footer ─────────────────────────────────────────── */

#footer {
  max-width: 1200px;
  margin: 0 auto;
  padding: 48px 48px 60px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 28px;
  border-top: 1px solid var(--glass-border);
}

.footer-logo {
  height: 38px;
  width: auto;
  opacity: 0.7;
  transition: all var(--transition-fast);
  filter: brightness(1.1);
}
.footer-logo:hover { opacity: 1; filter: brightness(1.4) drop-shadow(0 0 8px var(--cyan)); }

.social-links {
  display: flex;
  gap: 16px;
}

.social-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 46px; height: 46px;
  border-radius: 50%;
  border: 1px solid var(--glass-border);
  color: var(--text-secondary);
  transition: all var(--transition-fast);
  background: var(--bg-card);
}

.social-link:hover {
  border-color: var(--cyan);
  color: var(--cyan);
  box-shadow: 0 0 16px rgba(0, 240, 255, 0.3);
  transform: translateY(-4px);
}

.social-link svg { width: 20px; height: 20px; fill: currentColor; }

.footer-copy {
  font-size: 0.78rem;
  color: var(--text-muted);
  text-align: center;
}

/* ─── Hamburger & Mobile Menu ───────────────────────── */
.nav-hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  padding: 6px;
  border-radius: var(--radius-sm);
  background: transparent;
  border: 1px solid var(--glass-border);
  cursor: pointer;
  transition: border-color var(--transition-fast), background var(--transition-fast);
  z-index: 1100;
  position: relative;
}

.nav-hamburger:hover {
  border-color: var(--cyan);
  background: var(--cyan-dim);
}

.nav-hamburger span {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1),
              opacity   0.25s ease,
              background 0.2s ease;
  transform-origin: center;
}

/* Animated X when open */
.nav-hamburger.open span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
  background: var(--cyan);
}
.nav-hamburger.open span:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}
.nav-hamburger.open span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
  background: var(--cyan);
}

/* Mobile menu container */
.mobile-menu {
  position: fixed;
  inset: 0;
  z-index: 1050;
  pointer-events: none;
  visibility: hidden;
}

.mobile-menu.open {
  pointer-events: all;
  visibility: visible;
}

/* Backdrop */
.mobile-menu-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(7, 7, 10, 0.7);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  opacity: 0;
  transition: opacity 0.35s ease;
}

.mobile-menu.open .mobile-menu-backdrop {
  opacity: 1;
}

/* Slide-in panel from right */
.mobile-menu-panel {
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  width: min(320px, 85vw);
  background: rgba(12, 12, 18, 0.97);
  border-left: 1px solid var(--glass-border);
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 40px;
  padding: 40px 32px 60px;
  transform: translateX(100%);
  transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Neon left accent line */
.mobile-menu-panel::before {
  content: '';
  position: absolute;
  top: 0; left: 0; bottom: 0;
  width: 2px;
  background: linear-gradient(180deg, var(--cyan), var(--purple), var(--pink));
}

.mobile-menu.open .mobile-menu-panel {
  transform: translateX(0);
}

.mobile-menu-logo {
  height: 34px;
  width: auto;
  filter: brightness(1.1);
  opacity: 0.9;
}

/* Mobile nav links */
.mobile-nav-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 4px;
  width: 100%;
}

.mobile-nav-link {
  display: block;
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--text-secondary);
  padding: 14px 0;
  border-bottom: 1px solid var(--glass-border);
  transition: color var(--transition-fast), padding-left var(--transition-fast);
  position: relative;
}

.mobile-nav-link:hover,
.mobile-nav-link:focus {
  color: var(--cyan);
  padding-left: 12px;
  outline: none;
}

.mobile-nav-link::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%) scaleY(0);
  width: 2px;
  height: 60%;
  background: var(--cyan);
  border-radius: 2px;
  transition: transform var(--transition-fast);
}

.mobile-nav-link:hover::before {
  transform: translateY(-50%) scaleY(1);
}

.mobile-menu-genres {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: auto;
}

/* ─── Responsive ─────────────────────────────────────── */
@media (max-width: 900px) {
  section { padding: 80px 24px; }
  #navbar { padding: 16px 24px; }
  #navbar.scrolled { padding: 12px 24px; }
  .nav-links { display: none; }
  .nav-hamburger { display: flex; }
  .about-grid { grid-template-columns: 1fr; }
  .music-grid { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: repeat(2, 1fr); }
  .contact-card-location { grid-column: 1 / -1; }
  .player-main { grid-template-columns: 1fr auto; }
  .player-info { display: none; }
  #player-visualizer { display: none; }
  #footer { padding: 40px 24px 60px; }
}

@media (max-width: 540px) {
  .player-main { padding: 0 16px; }
  .volume-wrap { display: none; }
  .contact-grid { grid-template-columns: 1fr; }
  .contact-card { padding: 18px 20px; }
}