:root {
  --bg: #0f172a;
  --panel: #111827;
  --panel-2: #1f2937;
  --text: #f8fafc;
  --muted: #cbd5e1;
  --accent: #facc15;
  --accent-dark: #a16207;
  --danger: #fecaca;
  --success: #bbf7d0;
  --focus: #38bdf8;
  color-scheme: dark;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: linear-gradient(180deg, var(--bg), #020617);
  color: var(--text);
  line-height: 1.6;
}

.skip-link {
  position: absolute;
  left: 1rem;
  top: -10rem;
  background: var(--accent);
  color: #111827;
  padding: .75rem 1rem;
  z-index: 100;
}
.skip-link:focus { top: 1rem; }

.site-header, .site-footer {
  max-width: 1100px;
  margin: 0 auto;
  padding: 1.5rem;
}
.site-header {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  align-items: flex-start;
}
.brand-lockup {
  display: flex;
  align-items: center;
  gap: 1rem;
}
.brand-logo {
  width: clamp(4.5rem, 12vw, 7rem);
  height: auto;
  flex: 0 0 auto;
  border-radius: 999px;
}

nav { display: flex; gap: 1rem; flex-wrap: wrap; }
a { color: var(--accent); }
a:hover { color: #fde68a; }

.container {
  max-width: 900px;
  margin: 0 auto;
  padding: 1rem 1.5rem 3rem;
}

.eyebrow {
  color: var(--accent);
  font-weight: 700;
  margin: 0 0 .25rem;
  text-transform: uppercase;
  letter-spacing: .08em;
  font-size: .85rem;
}
h1 { font-size: clamp(2rem, 5vw, 4rem); margin: 0; line-height: 1.05; }
h2 { font-size: clamp(1.5rem, 3vw, 2.2rem); margin-top: 0; }
h3 { margin-bottom: .5rem; }
.tagline { font-size: 1.2rem; color: var(--muted); margin: .5rem 0 0; }

.hero, .card, .submission-item {
  background: rgba(17, 24, 39, .9);
  border: 1px solid rgba(250, 204, 21, .25);
  border-radius: 1rem;
  padding: 1.5rem;
  margin: 1.25rem 0;
  box-shadow: 0 1rem 3rem rgba(0,0,0,.25);
}
.status-panel, .preview {
  background: var(--panel-2);
  border-radius: .75rem;
  padding: 1rem;
  margin: 1rem 0;
}
.controls { display: flex; gap: .75rem; flex-wrap: wrap; margin: 1rem 0; }
button {
  border: 0;
  border-radius: .75rem;
  padding: .9rem 1.1rem;
  font-weight: 800;
  cursor: pointer;
  background: var(--accent);
  color: #111827;
}
button:hover:not(:disabled) { background: #fde047; }
button:disabled { opacity: .45; cursor: not-allowed; }
button.secondary { background: #e5e7eb; }
button.danger { background: var(--danger); }
button.success { background: var(--success); }

button:focus-visible, a:focus-visible, input:focus-visible, audio:focus-visible, textarea:focus-visible {
  outline: .25rem solid var(--focus);
  outline-offset: .2rem;
}

.form { display: grid; gap: .75rem; margin-top: 1rem; }
label { font-weight: 700; }
input, textarea {
  width: 100%;
  padding: .85rem;
  border-radius: .65rem;
  border: 2px solid transparent;
  background: #f8fafc;
  color: #111827;
  font: inherit;
}
.checkbox-row {
  display: flex;
  align-items: flex-start;
  gap: .75rem;
  font-weight: 600;
}
.checkbox-row input { width: auto; margin-top: .35rem; }
.hidden { display: none; }
.notice { color: var(--muted); }
.error { color: var(--danger); font-weight: 700; }
.success-text { color: var(--success); font-weight: 700; }
.audio-sequence { display: grid; gap: .5rem; }
audio { width: 100%; }

@media (max-width: 720px) {
  .site-header { display: block; }
  .brand-lockup { align-items: flex-start; }
  .brand-logo { width: 5rem; }
  nav { margin-top: 1rem; }
  .controls button { width: 100%; }
}