:root {
  color-scheme: dark;
  color: #e9ecef;
  background: #080a0f;
  font-family: Inter, system-ui, sans-serif;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100vh;
  background: radial-gradient(circle at top, #2d72ff 0%, #0d1221 38%);
}

/* ── topbar ──────────────────────────────────────────────────── */
.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 1.5rem;
  gap: 1rem;
  flex-wrap: wrap;
}

.site-name {
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.topbar-right {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.user-name { font-size: 0.9rem; color: #abb4c4; }

/* ── layout ──────────────────────────────────────────────────── */
main {
  width: min(1080px, calc(100% - 2rem));
  margin: 0 auto 2rem;
}

section.card {
  background: rgba(16, 22, 41, 0.96);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 1rem;
  padding: 1.5rem;
  margin: 1rem auto;
  width: min(1080px, calc(100% - 2rem));
}

section:not(.card) {
  width: min(1080px, calc(100% - 2rem));
  margin: 0 auto;
}

h1 { margin: 0; font-size: clamp(1.75rem, 4vw, 3rem); }
h2 { margin: 0 0 1rem; }
h3 { margin: 0 0 1rem; }
p  { margin: 0.5rem 0; color: #abb4c4; }

/* ── buttons ─────────────────────────────────────────────────── */
button, input, textarea, select { font: inherit; }

button {
  background: #4f74ff;
  border: none;
  color: white;
  padding: 0.7rem 1.2rem;
  border-radius: 0.75rem;
  cursor: pointer;
  white-space: nowrap;
}

button.secondary {
  background: rgba(255, 255, 255, 0.08);
  color: #e9ecef;
}

button.danger {
  background: rgba(239, 68, 68, 0.15);
  color: #f87171;
  border: 1px solid rgba(239, 68, 68, 0.3);
}

button.btn-sm {
  padding: 0.35rem 0.75rem;
  font-size: 0.82rem;
  border-radius: 0.5rem;
}

/* ── form inputs ─────────────────────────────────────────────── */
input, textarea, select {
  width: 100%;
  padding: 0.75rem 1rem;
  border-radius: 0.75rem;
  border: 1px solid rgba(255, 255, 255, 0.1);
  background: rgba(255, 255, 255, 0.04);
  color: #f5f7ff;
  margin-top: 0.5rem;
}

label {
  display: block;
  font-size: 0.9rem;
  margin-top: 0.85rem;
  color: #abb4c4;
}

/* ── cover hero (public page) ────────────────────────────────── */
.cover-hero {
  display: block;
  width: min(1080px, calc(100% - 2rem));
  margin: 1rem auto 0;
  max-height: 340px;
  object-fit: cover;
  border-radius: 1rem;
}

/* ── playlist grid ───────────────────────────────────────────── */
.playlist-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 1rem;
  margin-top: 1rem;
}

.playlist-card {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 0.875rem;
  overflow: hidden;
}

.pl-cover {
  width: 100%;
  aspect-ratio: 16/9;
  object-fit: cover;
  display: block;
}

.pl-cover-empty {
  background: linear-gradient(135deg, #1e3a5f, #0d1221);
  aspect-ratio: 16/9;
}

.pl-body {
  padding: 0.875rem;
}

.pl-body strong { display: block; margin-bottom: 0.25rem; }
.pl-body p { font-size: 0.875rem; margin: 0; }

/* ── playlist hero (edit page) ───────────────────────────────── */
.pl-hero {
  display: flex;
  gap: 1.25rem;
  align-items: flex-start;
  flex-wrap: wrap;
}

.pl-hero-cover {
  width: 140px;
  height: 140px;
  object-fit: cover;
  border-radius: 0.75rem;
  flex-shrink: 0;
}

.pl-hero-cover.pl-cover-empty {
  background: linear-gradient(135deg, #1e3a5f, #0d1221);
  aspect-ratio: unset;
}

.pl-hero-info { flex: 1; min-width: 200px; }
.actions { display: flex; gap: 0.5rem; flex-wrap: wrap; align-items: center; }

/* ── tag filter ──────────────────────────────────────────────── */
.tag-filter {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
  margin-top: 1rem;
}

.tag-btn {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.12);
  color: #abb4c4;
  padding: 0.4rem 0.9rem;
  border-radius: 999px;
  font-size: 0.875rem;
  cursor: pointer;
}

.tag-btn.active {
  background: #4f74ff;
  border-color: #4f74ff;
  color: white;
}

/* ── track grid ──────────────────────────────────────────────── */
.track-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1rem;
  margin-top: 0.5rem;
}

/* ── track card ──────────────────────────────────────────────── */
.track-card {
  background: rgba(16, 22, 41, 0.96);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 0.875rem;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.track-thumb {
  aspect-ratio: 16/9;
  overflow: hidden;
  background: #0d1221;
}

.track-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.track-body {
  padding: 0.875rem;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  flex: 1;
}

.track-meta {
  display: flex;
  gap: 0.4rem;
  flex-wrap: wrap;
}

.badge {
  font-size: 0.72rem;
  padding: 0.2rem 0.55rem;
  border-radius: 999px;
  font-weight: 600;
  letter-spacing: 0.02em;
}

.badge-youtube { background: rgba(255, 0, 0, 0.18); color: #f87171; }
.badge-suno    { background: rgba(139, 92, 246, 0.18); color: #a78bfa; }
.badge-x       { background: rgba(255, 255, 255, 0.1); color: #e9ecef; }
.badge-other   { background: rgba(79, 116, 255, 0.18); color: #84b7ff; }
.badge-tag     { background: rgba(52, 211, 153, 0.15); color: #6ee7b7; }

.track-title  { margin: 0; font-weight: 600; font-size: 0.95rem; color: #f5f7ff; }
.track-artist { margin: 0; font-size: 0.82rem; color: #8d99ae; }
.track-note   { margin: 0; font-size: 0.82rem; color: #abb4c4; line-height: 1.5; }

/* ── embed player ────────────────────────────────────────────── */
.embed-wrap {
  position: relative;
  width: 100%;
  aspect-ratio: 16/9;
  margin-top: 0.25rem;
}

.embed-wrap iframe {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: none;
  border-radius: 0.5rem;
}

.ext-link {
  display: inline-block;
  margin-top: 0.25rem;
  color: #84b7ff;
  font-size: 0.875rem;
  text-decoration: none;
}

.ext-link:hover { text-decoration: underline; }

/* ── card actions ────────────────────────────────────────────── */
.card-actions {
  display: flex;
  gap: 0.4rem;
  margin-top: auto;
  padding-top: 0.5rem;
}

/* ── inline track edit ───────────────────────────────────────── */
.track-edit-form {
  padding: 0.875rem;
}

/* ── add track form layout ───────────────────────────────────── */
.add-track-form {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0 1rem;
}

.add-track-form label:first-child { grid-column: 1 / -1; }
.add-track-form label:nth-last-child(2) { grid-column: 1 / -1; }
.add-track-form button { grid-column: 1 / -1; justify-self: start; }

@media (max-width: 600px) {
  .add-track-form { grid-template-columns: 1fr; }
  .track-grid { grid-template-columns: 1fr; }
  .playlist-grid { grid-template-columns: 1fr 1fr; }
}

/* ── misc ────────────────────────────────────────────────────── */
a.link { color: #84b7ff; text-decoration: none; }
a.link:hover { text-decoration: underline; }

small { color: #8d99ae; font-size: 0.8rem; }