/* ==========================================================================
   WAVELENGTH — Music & Entertainment
   Design tokens
   ========================================================================== */
:root {
  /* colour */
  --bg: #1A0F1F;
  --bg-elevated: #241530;
  --bg-elevated-2: #2E1B38;
  --line: rgba(247, 240, 242, 0.12);
  --line-strong: rgba(247, 240, 242, 0.22);
  --coral: #FF6B5B;
  --coral-dim: #C94F43;
  --gold: #F5C244;
  --violet: #8E6BFF;
  --text: #F7F0F2;
  --text-muted: #B6A8B8;
  --text-faint: #7C6E80;
  --success: #7FD68A;
  --error: #FF8080;

  /* type */
  --font-display: "Bebas Neue", "Arial Narrow", sans-serif;
  --font-body: "Work Sans", "Segoe UI", sans-serif;
  --font-mono: "JetBrains Mono", "Courier New", monospace;

  /* layout */
  --max-width: 1160px;
  --radius: 14px;
  --radius-sm: 8px;
}

/* ==========================================================================
   Reset
   ========================================================================== */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
img, svg { max-width: 100%; height: auto; display: block; }
a { color: inherit; }
h1, h2, h3, h4 { font-family: var(--font-display); letter-spacing: 0.02em; margin: 0 0 0.4em; font-weight: 400; }
p { margin: 0 0 1em; color: var(--text-muted); }
ul { padding-left: 1.2em; }
button { font-family: var(--font-body); }

/* Visible keyboard focus everywhere — accessibility requirement */
a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible,
select:focus-visible,
[tabindex]:focus-visible {
  outline: 3px solid var(--gold);
  outline-offset: 3px;
  border-radius: 4px;
}

/* Reduced motion support */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { animation-duration: 0.001ms !important; animation-iteration-count: 1 !important; transition-duration: 0.001ms !important; }
}

.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  background: var(--gold);
  color: #1A0F1F;
  padding: 0.7em 1.2em;
  z-index: 100;
  font-weight: 600;
  border-radius: 0 0 8px 0;
}
.skip-link:focus {
  left: 0;
}

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

.eyebrow {
  font-family: var(--font-mono);
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: 0.78rem;
  color: var(--gold);
  display: inline-block;
  margin-bottom: 0.8em;
}

/* ==========================================================================
   Waveform signature — used as dividers / decorative motif throughout
   ========================================================================== */
.waveform {
  display: flex;
  align-items: flex-end;
  gap: 4px;
  height: 28px;
  margin: 0 0 1.5em;
}
.waveform span {
  width: 4px;
  background: linear-gradient(180deg, var(--coral), var(--gold));
  border-radius: 2px;
  animation: bounce 1.6s ease-in-out infinite;
}
.waveform span:nth-child(2) { animation-delay: -0.2s; }
.waveform span:nth-child(3) { animation-delay: -0.9s; }
.waveform span:nth-child(4) { animation-delay: -0.4s; }
.waveform span:nth-child(5) { animation-delay: -1.2s; }
.waveform span:nth-child(6n) { animation-delay: -0.7s; }
.waveform span:nth-child(5n) { animation-delay: -1.4s; }
.waveform span:nth-child(7n) { animation-delay: -0.3s; }
@keyframes bounce {
  0%, 100% { height: 20%; }
  50% { height: 100%; }
}
.waveform-divider {
  border: 0;
  height: 1px;
  background: var(--line);
  margin: 3rem 0;
}

/* ==========================================================================
   Header / navigation
   ========================================================================== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(26, 15, 31, 0.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.nav-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 24px;
}
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-display);
  font-size: 1.5rem;
  letter-spacing: 0.06em;
  text-decoration: none;
  color: var(--text);
}
.logo .logo-mark { color: var(--coral); }

/* CSS-only mobile menu: a hidden checkbox + label toggle the nav list,
   no JavaScript involved. */
.nav-toggle-checkbox {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
}
.nav-toggle-btn {
  display: none;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-sm);
  color: var(--text);
  width: 44px;
  height: 44px;
  cursor: pointer;
}
.nav-toggle-checkbox:focus-visible + .nav-toggle-btn {
  outline: 3px solid var(--gold);
  outline-offset: 3px;
}
.nav-toggle-btn svg { margin: 0 auto; }

.nav-menu {
  display: flex;
  gap: 28px;
  list-style: none;
  margin: 0;
  padding: 0;
}
.nav-menu a {
  text-decoration: none;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-muted);
  padding: 6px 2px;
  border-bottom: 2px solid transparent;
  transition: color 0.2s ease, border-color 0.2s ease;
}
.nav-menu a:hover,
.nav-menu a[aria-current="page"] {
  color: var(--text);
  border-color: var(--coral);
}

/* ==========================================================================
   Buttons
   ========================================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 22px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.95rem;
  text-decoration: none;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.15s ease, background 0.2s ease, border-color 0.2s ease;
}
.btn:hover { transform: translateY(-1px); }
.btn-primary { background: var(--coral); color: #1A0F1F; }
.btn-primary:hover { background: #ff8171; }
.btn-outline { background: transparent; color: var(--text); border-color: var(--line-strong); }
.btn-outline:hover { border-color: var(--gold); color: var(--gold); }
.btn-block { width: 100%; justify-content: center; }
.btn:disabled { opacity: 0.5; cursor: not-allowed; transform: none; }

/* ==========================================================================
   Hero
   ========================================================================== */
.hero {
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid var(--line);
}
.hero picture,
.hero img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.55;
}
.hero-inner {
  position: relative;
  padding: 96px 24px 110px;
  max-width: var(--max-width);
  margin: 0 auto;
}
.hero h1 {
  font-size: clamp(2.6rem, 6vw, 5rem);
  line-height: 0.98;
  max-width: 14ch;
  background: linear-gradient(120deg, var(--text) 40%, var(--gold));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero p.lede {
  max-width: 46ch;
  font-size: 1.15rem;
  color: var(--text);
}
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; margin-top: 1.6em; }

/* ==========================================================================
   Sections
   ========================================================================== */
section { padding: 72px 0; }
.section-tight { padding: 48px 0; }
.section-head { max-width: 60ch; margin-bottom: 2.4em; }
.section-alt { background: var(--bg-elevated); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }

.two-col {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 56px;
  align-items: center;
}
.two-col.reverse { grid-template-columns: 0.9fr 1.1fr; }
.two-col.reverse .col-media { order: 2; }

.col-media img,
.col-media svg { border-radius: var(--radius); border: 1px solid var(--line); }

/* ==========================================================================
   Cards / track listing (structural device: catalogue numbers)
   ========================================================================== */
.track-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 18px; }
.track {
  display: grid;
  grid-template-columns: auto 88px 1fr auto;
  gap: 18px;
  align-items: center;
  background: var(--bg-elevated);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 14px;
}
.track-cat {
  font-family: var(--font-mono);
  color: var(--gold);
  font-size: 0.85rem;
  padding: 0 6px;
}
.track-cover { width: 88px; height: 88px; border-radius: var(--radius-sm); overflow: hidden; }
.track-cover img { width: 100%; height: 100%; object-fit: cover; }
.track-info h3 { font-size: 1.15rem; margin-bottom: 0.15em; }
.track-info p { margin: 0; font-size: 0.9rem; }
.track-tag {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  text-transform: uppercase;
  color: var(--text-faint);
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  padding: 4px 10px;
  white-space: nowrap;
}

/* ==========================================================================
   Media blocks — audio / video
   ========================================================================== */
.media-frame {
  background: var(--bg-elevated);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 28px;
}
.media-frame audio,
.media-frame video {
  width: 100%;
  border-radius: var(--radius-sm);
  background: #000;
}
.media-frame audio { background: transparent; }
.media-caption { margin-top: 14px; font-size: 0.88rem; color: var(--text-faint); }
.no-autoplay-note {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.78rem;
  color: var(--text-faint);
  margin-top: 10px;
}

/* ==========================================================================
   Gallery
   ========================================================================== */
/* CSS-only gallery filter: hidden radio inputs + label "buttons".
   Requires the radios to sit as earlier siblings of .filter-bar and
   .gallery-grid in the markup — see gallery.html. No JavaScript. */
.filter-radio {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
}
.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 2em;
}
.filter-btn {
  background: var(--bg-elevated);
  border: 1px solid var(--line-strong);
  color: var(--text-muted);
  padding: 8px 16px;
  border-radius: 999px;
  cursor: pointer;
  font-size: 0.85rem;
  font-weight: 600;
  display: inline-block;
}
.filter-radio:focus-visible + .filter-btn {
  outline: 3px solid var(--gold);
  outline-offset: 2px;
}
#filter-all:focus-visible ~ .filter-bar label[for="filter-all"],
#filter-image:focus-visible ~ .filter-bar label[for="filter-image"],
#filter-audio:focus-visible ~ .filter-bar label[for="filter-audio"],
#filter-video:focus-visible ~ .filter-bar label[for="filter-video"] {
  outline: 3px solid var(--gold);
  outline-offset: 2px;
}
#filter-all:checked ~ .filter-bar label[for="filter-all"],
#filter-image:checked ~ .filter-bar label[for="filter-image"],
#filter-audio:checked ~ .filter-bar label[for="filter-audio"],
#filter-video:checked ~ .filter-bar label[for="filter-video"] {
  background: var(--coral);
  border-color: var(--coral);
  color: #1A0F1F;
}
#filter-image:checked ~ .gallery-grid .gallery-card:not(.type-image),
#filter-audio:checked ~ .gallery-grid .gallery-card:not(.type-audio),
#filter-video:checked ~ .gallery-grid .gallery-card:not(.type-video) {
  display: none;
}

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 24px;
}
.gallery-card {
  background: var(--bg-elevated);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  display: flex;
  flex-direction: column;
}
.gallery-thumb { aspect-ratio: 4 / 3; overflow: hidden; background: #100A16; position: relative; }
.gallery-thumb img { width: 100%; height: 100%; object-fit: cover; }
.gallery-thumb .type-badge {
  position: absolute;
  top: 10px;
  left: 10px;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  text-transform: uppercase;
  background: rgba(26,15,31,0.85);
  border: 1px solid var(--line-strong);
  color: var(--gold);
  padding: 3px 9px;
  border-radius: 999px;
}
.gallery-body { padding: 16px; display: flex; flex-direction: column; gap: 10px; flex: 1; }
.gallery-body h3 { font-size: 1.05rem; margin-bottom: 0; }
.gallery-body p { font-size: 0.85rem; margin-bottom: 0; }
.gallery-body audio, .gallery-body video { width: 100%; border-radius: var(--radius-sm); }
.gallery-meta {
  display: flex;
  justify-content: space-between;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-faint);
}
.gallery-actions { margin-top: auto; display: flex; gap: 8px; }
.delete-form { margin: 0; }
.btn-delete {
  background: transparent;
  border: 1px solid var(--error);
  color: var(--error);
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  font-size: 0.82rem;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-body);
}
.btn-delete:hover { background: rgba(255, 128, 128, 0.1); }

/* ==========================================================================
   Forms — upload + contact
   ========================================================================== */
.form-card {
  background: var(--bg-elevated);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 32px;
}
.field { margin-bottom: 22px; }
.field label {
  display: block;
  font-weight: 600;
  font-size: 0.9rem;
  margin-bottom: 8px;
}
.field .hint { font-size: 0.8rem; color: var(--text-faint); margin-top: 6px; }
.field input[type="text"],
.field input[type="email"],
.field input[type="file"],
.field textarea,
.field select {
  width: 100%;
  background: #150C1A;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-sm);
  padding: 12px 14px;
  color: var(--text);
  font-family: var(--font-body);
  font-size: 0.95rem;
}
.field input:focus, .field textarea:focus, .field select:focus { border-color: var(--gold); }
.field textarea { resize: vertical; min-height: 120px; }

.upload-drop {
  border: 2px dashed var(--line-strong);
  border-radius: var(--radius);
  padding: 34px 20px;
  text-align: center;
  transition: border-color 0.2s ease, background 0.2s ease;
}
.upload-drop:focus-within { border-color: var(--gold); background: rgba(245, 194, 68, 0.06); }
.upload-drop input[type="file"] { margin: 12px auto 0; color: var(--text-muted); }

.status-msg {
  margin-top: 18px;
  padding: 14px 16px;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  border: 1px solid var(--line-strong);
  background: var(--bg-elevated);
  color: var(--text-faint);
}
.status-msg.status-success {
  border-color: rgba(127, 214, 138, 0.55);
  color: var(--success);
  background: rgba(127, 214, 138, 0.08);
}
.status-msg.status-error {
  border-color: rgba(255, 128, 128, 0.6);
  color: var(--error);
  background: rgba(255, 128, 128, 0.08);
}
.upload-preview {
  margin: 18px 0;
  padding: 14px;
  background: #100A16;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
}
.upload-preview img,
.upload-preview audio,
.upload-preview video {
  display: block;
  width: 100%;
  max-height: 320px;
  border-radius: var(--radius-sm);
  object-fit: contain;
}
.upload-preview audio {
  max-height: none;
}

table.format-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.92rem;
}
table.format-table caption { text-align: left; color: var(--text-faint); font-size: 0.82rem; margin-bottom: 10px; }
table.format-table th, table.format-table td {
  text-align: left;
  padding: 12px 14px;
  border-bottom: 1px solid var(--line);
}
table.format-table th {
  font-family: var(--font-mono);
  text-transform: uppercase;
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  color: var(--gold);
}
table.format-table code { font-family: var(--font-mono); color: var(--text); }
.table-scroll { overflow-x: auto; border: 1px solid var(--line); border-radius: var(--radius); padding: 4px 18px; background: var(--bg-elevated); }

/* ==========================================================================
   Stat / accessibility checklist
   ========================================================================== */
.check-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 18px;
}
.check-item {
  display: flex;
  gap: 12px;
  background: var(--bg-elevated);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 18px;
}
.check-item svg { flex-shrink: 0; color: var(--gold); }
.check-item h3 { font-size: 1rem; margin-bottom: 0.3em; }
.check-item p { font-size: 0.88rem; margin: 0; }

/* ==========================================================================
   Footer
   ========================================================================== */
.site-footer {
  border-top: 1px solid var(--line);
  padding: 48px 0 28px;
  background: var(--bg-elevated);
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 32px;
  margin-bottom: 32px;
}
.footer-grid h4 { font-size: 0.85rem; text-transform: uppercase; letter-spacing: 0.08em; color: var(--gold); font-family: var(--font-body); font-weight: 700; margin-bottom: 1em; }
.footer-grid ul { list-style: none; padding: 0; margin: 0; display: grid; gap: 10px; }
.footer-grid a { text-decoration: none; color: var(--text-muted); font-size: 0.9rem; }
.footer-grid a:hover { color: var(--text); }
.footer-bottom {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  padding-top: 22px;
  border-top: 1px solid var(--line);
  font-size: 0.82rem;
  color: var(--text-faint);
}

/* ==========================================================================
   Utility
   ========================================================================== */
.visually-hidden {
  position: absolute;
  width: 1px; height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}
.text-center { text-align: center; }
.mt-lg { margin-top: 2.4em; }

/* ==========================================================================
   Responsive breakpoints
   ========================================================================== */
@media (max-width: 900px) {
  .two-col, .two-col.reverse { grid-template-columns: 1fr; }
  .two-col.reverse .col-media { order: 0; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 760px) {
  .nav-toggle-btn { display: flex; }
  .nav-menu {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--bg-elevated);
    border-bottom: 1px solid var(--line);
    flex-direction: column;
    padding: 18px 24px 26px;
    gap: 16px;
    display: none;
  }
  .nav-toggle-checkbox:checked ~ .nav-menu { display: flex; }
  .hero-inner { padding: 64px 20px 74px; }
  .track { grid-template-columns: auto 64px 1fr; }
  .track-tag { display: none; }
  .footer-grid { grid-template-columns: 1fr; }
  section { padding: 52px 0; }
}

@media (max-width: 520px) {
  .hero h1 { font-size: 2.2rem; }
  .form-card { padding: 22px; }
  .gallery-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 400px) {
  .gallery-grid { grid-template-columns: 1fr; }
}