/* ============================================================
   DemoDrop (www.demodrop.co.za) — Modern Musician Demo Platform
   Dark, immersive, glassmorphism + soft neon accents
   ============================================================ */

:root {
  --bg-deep: #0a0b0f;
  --bg-card: rgba(18, 20, 28, 0.75);
  --bg-glass: rgba(255, 255, 255, 0.04);
  --border: rgba(255, 255, 255, 0.08);
  --border-hover: rgba(255, 255, 255, 0.16);
  --text-primary: #f0f2f5;
  --text-secondary: #9aa3b2;
  --text-muted: #6b7280;
  --accent: #7c5cff;
  --accent-2: #00d4aa;
  --accent-3: #ff6b9d;
  --accent-glow: rgba(124, 92, 255, 0.35);
  --success: #22c55e;
  --warning: #f59e0b;
  --danger: #ef4444;
  --radius: 16px;
  --radius-sm: 10px;
  --shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
  --font: 'Inter', system-ui, -apple-system, sans-serif;
  --mono: 'JetBrains Mono', ui-monospace, monospace;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--font);
  background: var(--bg-deep);
  color: var(--text-primary);
  min-height: 100vh;
  line-height: 1.5;
  overflow-x: hidden;
}

/* Subtle animated gradient mesh background */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 50% at 20% -10%, rgba(124, 92, 255, 0.18), transparent),
    radial-gradient(ellipse 60% 40% at 80% 10%, rgba(0, 212, 170, 0.12), transparent),
    radial-gradient(ellipse 50% 30% at 50% 100%, rgba(255, 107, 157, 0.08), transparent);
  pointer-events: none;
  z-index: -1;
}

a { color: var(--accent); text-decoration: none; transition: color 0.2s; }
a:hover { color: #a78bfa; }

img { max-width: 100%; display: block; }

/* ---------- Typography ---------- */
h1, h2, h3, h4 { font-weight: 600; letter-spacing: -0.02em; }
h1 { font-size: clamp(1.8rem, 4vw, 2.6rem); }
h2 { font-size: 1.5rem; }
h3 { font-size: 1.15rem; }

/* ---------- Layout helpers ---------- */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.25rem;
}

.page {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.main { flex: 1; padding: 2rem 0 4rem; }

/* ---------- Navbar ---------- */
.navbar {
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(16px);
  background: rgba(10, 11, 15, 0.7);
  border-bottom: 1px solid var(--border);
  padding: 0.85rem 0;
}

.navbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--text-primary);
  letter-spacing: -0.03em;
}

.logo-icon {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  display: grid;
  place-items: center;
  font-size: 1.1rem;
  box-shadow: 0 0 20px var(--accent-glow);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.nav-user {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  color: var(--text-secondary);
  font-size: 0.9rem;
}

.avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), var(--accent-3));
  display: grid;
  place-items: center;
  font-weight: 600;
  font-size: 0.85rem;
  color: white;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.45rem;
  padding: 0.65rem 1.25rem;
  border-radius: 999px;
  font-weight: 500;
  font-size: 0.9rem;
  border: none;
  cursor: pointer;
  transition: all 0.2s ease;
  white-space: nowrap;
  font-family: inherit;
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent), #9b7aff);
  color: white;
  box-shadow: 0 4px 20px var(--accent-glow);
}
.btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 28px var(--accent-glow);
  filter: brightness(1.08);
}

.btn-secondary {
  background: var(--bg-glass);
  color: var(--text-primary);
  border: 1px solid var(--border);
}
.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: var(--border-hover);
}

.btn-ghost {
  background: transparent;
  color: var(--text-secondary);
  padding: 0.5rem 0.9rem;
}
.btn-ghost:hover { color: var(--text-primary); background: var(--bg-glass); }

.btn-sm { padding: 0.4rem 0.9rem; font-size: 0.8rem; }
.btn-icon {
  width: 40px;
  height: 40px;
  padding: 0;
  border-radius: 50%;
}

.btn-danger {
  background: rgba(239, 68, 68, 0.15);
  color: #fca5a5;
  border: 1px solid rgba(239, 68, 68, 0.3);
}
.btn-danger:hover { background: rgba(239, 68, 68, 0.25); }

/* ---------- Cards & Glass ---------- */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  backdrop-filter: blur(12px);
  box-shadow: var(--shadow);
}

.glass {
  background: var(--bg-glass);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  backdrop-filter: blur(12px);
}

/* ---------- Auth pages ---------- */
.auth-page {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 2rem 1rem;
}

.auth-card {
  width: 100%;
  max-width: 420px;
  padding: 2.5rem 2rem;
}

.auth-card .logo { justify-content: center; margin-bottom: 1.75rem; }

.auth-title {
  text-align: center;
  margin-bottom: 0.35rem;
}

.auth-sub {
  text-align: center;
  color: var(--text-secondary);
  font-size: 0.95rem;
  margin-bottom: 2rem;
}

.form-group {
  margin-bottom: 1.15rem;
}

.form-group label {
  display: block;
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-bottom: 0.4rem;
  font-weight: 500;
}

.form-control {
  width: 100%;
  padding: 0.75rem 1rem;
  background: rgba(0, 0, 0, 0.35);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-size: 0.95rem;
  font-family: inherit;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.form-control:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-glow);
}

.form-control::placeholder { color: var(--text-muted); }

.auth-footer {
  text-align: center;
  margin-top: 1.5rem;
  font-size: 0.9rem;
  color: var(--text-secondary);
}

.auth-footer a { font-weight: 500; }

/* ---------- Dashboard ---------- */
.page-header {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 2rem;
}

.page-header p {
  color: var(--text-secondary);
  margin-top: 0.25rem;
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.25rem;
}

.project-card {
  padding: 1.5rem;
  cursor: pointer;
  transition: all 0.25s ease;
  position: relative;
  overflow: hidden;
}

.project-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-3px);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.5);
}

.project-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  opacity: 0;
  transition: opacity 0.25s;
}

.project-card:hover::before { opacity: 1; }

.project-card-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: linear-gradient(135deg, rgba(124, 92, 255, 0.2), rgba(0, 212, 170, 0.15));
  display: grid;
  place-items: center;
  font-size: 1.4rem;
  margin-bottom: 1rem;
}

.project-card h3 { margin-bottom: 0.35rem; }
.project-card .meta {
  font-size: 0.85rem;
  color: var(--text-muted);
  display: flex;
  gap: 1rem;
  margin-top: 0.75rem;
}

.project-card .meta span { display: flex; align-items: center; gap: 0.3rem; }

/* Empty state */
.empty-state {
  text-align: center;
  padding: 4rem 2rem;
  color: var(--text-secondary);
}

.empty-state .icon {
  font-size: 3rem;
  margin-bottom: 1rem;
  opacity: 0.6;
}

.empty-state h3 { color: var(--text-primary); margin-bottom: 0.5rem; }

/* ---------- Modal ---------- */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.65);
  backdrop-filter: blur(6px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 200;
  opacity: 0;
  visibility: hidden;
  transition: all 0.25s ease;
  padding: 1rem;
}

.modal-overlay.active {
  opacity: 1;
  visibility: visible;
}

.modal {
  width: 100%;
  max-width: 440px;
  padding: 1.75rem;
  transform: scale(0.95) translateY(10px);
  transition: transform 0.25s ease;
}

.modal-overlay.active .modal {
  transform: scale(1) translateY(0);
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.5rem;
}

.modal-close {
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 1.4rem;
  cursor: pointer;
  line-height: 1;
  padding: 0.2rem;
}
.modal-close:hover { color: var(--text-primary); }

/* ---------- Project workspace ---------- */
.project-header {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 2rem;
}

.project-header .breadcrumb {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 0.35rem;
}

.project-header .breadcrumb a { color: var(--text-secondary); }
.project-header .breadcrumb a:hover { color: var(--accent); }

/* Drop zone */
.dropzone {
  border: 2px dashed rgba(124, 92, 255, 0.35);
  border-radius: var(--radius);
  padding: 2.5rem 1.5rem;
  text-align: center;
  background: rgba(124, 92, 255, 0.04);
  transition: all 0.25s ease;
  margin-bottom: 2rem;
  cursor: pointer;
  position: relative;
}

.dropzone.dragover {
  border-color: var(--accent);
  background: rgba(124, 92, 255, 0.12);
  box-shadow: 0 0 40px var(--accent-glow);
}

.dropzone .icon {
  font-size: 2.5rem;
  margin-bottom: 0.75rem;
  opacity: 0.8;
}

.dropzone h3 { margin-bottom: 0.35rem; }
.dropzone p { color: var(--text-secondary); font-size: 0.9rem; }

.dropzone input[type="file"] {
  position: absolute;
  inset: 0;
  opacity: 0;
  cursor: pointer;
}

/* Track list */
.tracks-section h2 {
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.track-count {
  font-size: 0.85rem;
  color: var(--text-muted);
  font-weight: 400;
}

.track-list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.track-item {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 1rem;
  align-items: center;
  padding: 1rem 1.15rem;
  transition: all 0.2s;
}

.track-item:hover {
  border-color: var(--border-hover);
  background: rgba(255, 255, 255, 0.03);
}

.track-item.playing {
  border-color: rgba(124, 92, 255, 0.4);
  background: rgba(124, 92, 255, 0.08);
}

.track-play-btn {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), #9b7aff);
  border: none;
  color: white;
  font-size: 1rem;
  cursor: pointer;
  display: grid;
  place-items: center;
  flex-shrink: 0;
  transition: transform 0.2s, box-shadow 0.2s;
  box-shadow: 0 4px 16px var(--accent-glow);
}

.track-play-btn:hover { transform: scale(1.08); }

.track-info { min-width: 0; }
.track-title {
  font-weight: 560;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.track-meta {
  font-size: 0.8rem;
  color: var(--text-muted);
  display: flex;
  gap: 0.75rem;
  margin-top: 0.2rem;
}

.track-actions {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  flex-shrink: 0;
}

.insight-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  padding: 0.35rem 0.65rem;
  border-radius: 999px;
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text-secondary);
  font-size: 0.78rem;
  cursor: pointer;
  transition: all 0.2s;
  font-family: inherit;
}

.insight-btn:hover {
  border-color: var(--border-hover);
  color: var(--text-primary);
  background: var(--bg-glass);
}

.insight-btn.active-liked {
  background: rgba(34, 197, 94, 0.15);
  border-color: rgba(34, 197, 94, 0.4);
  color: #86efac;
}

.insight-btn.active-loved {
  background: rgba(255, 107, 157, 0.15);
  border-color: rgba(255, 107, 157, 0.4);
  color: #fda4af;
}

.insight-btn.active-improve {
  background: rgba(245, 158, 11, 0.15);
  border-color: rgba(245, 158, 11, 0.4);
  color: #fcd34d;
}

.play-count {
  font-size: 0.78rem;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 0.25rem;
  padding: 0 0.4rem;
}

/* ---------- Floating Player Bar ---------- */
.player-bar {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: rgba(12, 13, 18, 0.92);
  backdrop-filter: blur(20px);
  border-top: 1px solid var(--border);
  padding: 0.85rem 1.25rem;
  z-index: 150;
  transform: translateY(100%);
  transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  display: grid;
  grid-template-columns: 1fr 2fr 1fr;
  gap: 1rem;
  align-items: center;
}

.player-bar.visible { transform: translateY(0); }

.player-track-info {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  min-width: 0;
}

.player-art {
  width: 48px;
  height: 48px;
  border-radius: 8px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  display: grid;
  place-items: center;
  font-size: 1.2rem;
  flex-shrink: 0;
}

.player-track-title {
  font-weight: 560;
  font-size: 0.95rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.player-track-artist {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.player-controls {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.4rem;
}

.player-btns {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.player-btn {
  background: none;
  border: none;
  color: var(--text-secondary);
  font-size: 1.15rem;
  cursor: pointer;
  padding: 0.3rem;
  transition: color 0.2s, transform 0.15s;
}
.player-btn:hover { color: var(--text-primary); }
.player-btn.play-main {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: white;
  color: #0a0b0f;
  font-size: 1rem;
  display: grid;
  place-items: center;
}
.player-btn.play-main:hover { transform: scale(1.06); }

.progress-row {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  width: 100%;
  max-width: 480px;
}

.time {
  font-size: 0.72rem;
  color: var(--text-muted);
  font-variant-numeric: tabular-nums;
  min-width: 36px;
}

.progress-bar {
  flex: 1;
  height: 5px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 999px;
  cursor: pointer;
  position: relative;
  overflow: hidden;
}

.progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  border-radius: 999px;
  width: 0%;
  transition: width 0.1s linear;
}

.player-extra {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 0.75rem;
}

.volume-wrap {
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.volume-slider {
  width: 80px;
  height: 4px;
  -webkit-appearance: none;
  appearance: none;
  background: rgba(255, 255, 255, 0.15);
  border-radius: 999px;
  outline: none;
}

.volume-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: white;
  cursor: pointer;
}

/* ---------- Toast ---------- */
.toast-container {
  position: fixed;
  top: 1.25rem;
  right: 1.25rem;
  z-index: 300;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.toast {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 0.85rem 1.15rem;
  box-shadow: var(--shadow);
  font-size: 0.9rem;
  display: flex;
  align-items: center;
  gap: 0.6rem;
  animation: slideIn 0.3s ease;
  max-width: 340px;
}

.toast.success { border-left: 3px solid var(--success); }
.toast.error { border-left: 3px solid var(--danger); }
.toast.info { border-left: 3px solid var(--accent); }

@keyframes slideIn {
  from { opacity: 0; transform: translateX(30px); }
  to { opacity: 1; transform: translateX(0); }
}

/* ---------- Responsive ---------- */
@media (max-width: 768px) {
  .player-bar {
    grid-template-columns: 1fr;
    gap: 0.6rem;
    padding: 0.75rem 1rem 1rem;
  }
  .player-extra { display: none; }
  .player-track-info { order: 1; }
  .player-controls { order: 2; }
  .track-item {
    grid-template-columns: auto 1fr;
    grid-template-rows: auto auto;
  }
  .track-actions {
    grid-column: 1 / -1;
    justify-content: flex-start;
    flex-wrap: wrap;
    margin-top: 0.35rem;
  }
  .nav-links .btn-text { display: none; }
}

/* Utility */
.hidden { display: none !important; }
.sr-only {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0,0,0,0);
  border: 0;
}

/* Loading spinner */
.spinner {
  width: 20px; height: 20px;
  border: 2px solid rgba(255,255,255,0.2);
  border-top-color: white;
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ---------- Project card (dashboard) ---------- */
.project-card {
  display: flex;
  flex-direction: column;
  padding: 1.5rem;
  position: relative;
}
.project-card-link {
  color: inherit;
  text-decoration: none;
  flex: 1;
}
.project-card-link:hover { color: inherit; }
.project-card-desc {
  color: var(--text-secondary);
  font-size: 0.9rem;
  margin-top: 0.25rem;
}
.project-stats {
  flex-wrap: wrap;
  gap: 0.65rem !important;
  margin-top: 0.85rem !important;
}
.project-stats span {
  font-size: 0.8rem;
  color: var(--text-secondary);
}
.project-card .btn-delete-project {
  align-self: flex-start;
  margin-top: 0.75rem;
  opacity: 0.7;
}
.project-card .btn-delete-project:hover {
  opacity: 1;
  color: #fca5a5;
}

.project-header-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  align-items: center;
}

/* ---------- Tracks toolbar & bulk ---------- */
.tracks-toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  margin-bottom: 1rem;
}
.tracks-bulk-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}
.bulk-select-all {
  font-size: 0.85rem;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  gap: 0.4rem;
  cursor: pointer;
  user-select: none;
}
.bulk-select-all input { accent-color: var(--accent); cursor: pointer; }

.track-item {
  grid-template-columns: auto auto 1fr auto;
}
.track-check {
  display: flex;
  align-items: center;
  cursor: pointer;
}
.track-check input {
  width: 16px;
  height: 16px;
  accent-color: var(--accent);
  cursor: pointer;
}

.btn-delete-track {
  background: transparent;
  border: 1px solid transparent;
  color: var(--text-muted);
  border-radius: 8px;
  padding: 0.3rem 0.45rem;
  cursor: pointer;
  font-size: 0.9rem;
  transition: all 0.15s;
  font-family: inherit;
}
.btn-delete-track:hover {
  color: #fca5a5;
  border-color: rgba(239, 68, 68, 0.35);
  background: rgba(239, 68, 68, 0.12);
}

@media (max-width: 768px) {
  .track-item {
    grid-template-columns: auto auto 1fr;
  }
  .track-actions {
    grid-column: 1 / -1;
  }
}