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

:root {
  --bg: #0e0e12;
  --bg2: #17171f;
  --bg3: #1f1f2a;
  --border: rgba(255,255,255,0.08);
  --text: #f0f0f5;
  --text2: #9898b0;
  --accent: #7c6ef5;
  --accent-hover: #9182ff;
  --accent-glow: rgba(124,110,245,0.3);
  --danger: #e85555;
  --danger-hover: #ff6b6b;
  --success: #3ecf8e;
  --radius: 14px;
  --radius-sm: 8px;
}

html { font-size: 16px; -webkit-font-smoothing: antialiased; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  min-height: 100dvh;
  overflow-x: hidden;
}

/* ── Views ── */
.view {
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
}
.view.hidden { display: none !important; }
.hidden { display: none !important; }

/* ── Site Header ── */
.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 20px 16px;
  background: linear-gradient(180deg, rgba(124,110,245,0.12) 0%, transparent 100%);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 10;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.header-brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand-icon {
  font-size: 2rem;
  line-height: 1;
  filter: drop-shadow(0 0 8px rgba(124,110,245,0.6));
}
.brand-icon.small { font-size: 1.5rem; }

.site-header h1 {
  font-size: 1.3rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.1;
  background: linear-gradient(135deg, #fff 0%, #b8b0ff 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.header-sub {
  font-size: 0.72rem;
  color: var(--text2);
  margin-top: 2px;
  letter-spacing: 0.02em;
  text-transform: uppercase;
}

/* ── Tip Button ── */
.tip-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  background: linear-gradient(135deg, #1a1a28, #232335);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 9px 16px;
  border-radius: 99px;
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
  white-space: nowrap;
}
.tip-btn:hover {
  background: linear-gradient(135deg, var(--accent), #9c6ef5);
  border-color: var(--accent);
  transform: translateY(-1px);
  box-shadow: 0 4px 16px var(--accent-glow);
}
.tip-btn:active { transform: translateY(0); }

/* ── Content ── */
.content-wrapper {
  flex: 1;
  padding: 20px 16px 16px;
  max-width: 600px;
  width: 100%;
  margin: 0 auto;
}

.section-title {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text2);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 12px;
}

/* ── Search ── */
.search-wrap {
  position: relative;
  margin-bottom: 16px;
}
.search-icon {
  position: absolute;
  left: 14px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 0.9rem;
  pointer-events: none;
  opacity: 0.5;
}
#search-input {
  width: 100%;
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
  padding: 13px 14px 13px 40px;
  font-size: 0.95rem;
  font-family: inherit;
  outline: none;
  transition: border-color 0.2s, box-shadow 0.2s;
}
#search-input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-glow);
}
#search-input::placeholder { color: var(--text2); }

/* ── Song List ── */
.song-list {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.song-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 14px 16px;
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s, transform 0.1s;
  user-select: none;
  -webkit-tap-highlight-color: transparent;
}
.song-item:hover {
  background: var(--bg3);
  border-color: rgba(124,110,245,0.3);
}
.song-item:active {
  transform: scale(0.985);
}

.song-info { flex: 1; min-width: 0; }
.song-title {
  font-size: 0.95rem;
  font-weight: 600;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  color: var(--text);
}
.song-artist {
  font-size: 0.8rem;
  color: var(--text2);
  margin-top: 2px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.song-add-icon {
  width: 30px;
  height: 30px;
  border-radius: 50%;
  background: rgba(124,110,245,0.12);
  color: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  font-weight: 300;
  flex-shrink: 0;
  margin-left: 12px;
  transition: background 0.15s;
}
.song-item:hover .song-add-icon {
  background: var(--accent);
  color: #fff;
}

/* ── Loading / Empty States ── */
.loading {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  color: var(--text2);
  padding: 40px 0;
  font-size: 0.9rem;
}

.spinner {
  width: 18px;
  height: 18px;
  border: 2px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

.no-results {
  text-align: center;
  color: var(--text2);
  padding: 40px 0;
  font-size: 0.9rem;
}
.error {
  text-align: center;
  color: var(--danger);
  padding: 40px 0;
  font-size: 0.9rem;
}

/* ── Footer ── */
.site-footer {
  text-align: center;
  padding: 20px;
}
.admin-link {
  color: var(--text2);
  font-size: 0.8rem;
  text-decoration: none;
  opacity: 0.5;
  transition: opacity 0.2s;
}
.admin-link:hover { opacity: 1; }

/* ── Backdrop ── */
.backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.7);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  z-index: 50;
  animation: fadeIn 0.15s ease;
}
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }

/* ── Modal ── */
.modal {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: var(--bg2);
  border-top: 1px solid var(--border);
  border-radius: 20px 20px 0 0;
  padding: 28px 24px 40px;
  z-index: 60;
  max-width: 520px;
  margin: 0 auto;
  animation: slideUp 0.2s ease;
}
@media (min-width: 520px) {
  .modal {
    bottom: 50%;
    transform: translateY(50%);
    border-radius: 20px;
    border: 1px solid var(--border);
    animation: scaleIn 0.2s ease;
  }
}
@keyframes slideUp { from { transform: translateY(100%); } to { transform: translateY(0); } }
@keyframes scaleIn { from { opacity:0; transform: translateY(50%) scale(0.95); } to { opacity:1; transform: translateY(50%) scale(1); } }

.modal-close {
  position: absolute;
  top: 16px;
  right: 16px;
  background: var(--bg3);
  border: 1px solid var(--border);
  color: var(--text2);
  width: 32px;
  height: 32px;
  border-radius: 50%;
  cursor: pointer;
  font-size: 0.85rem;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.15s;
}
.modal-close:hover { background: var(--bg3); color: var(--text); border-color: rgba(255,255,255,0.2); }

.modal-song-badge {
  font-size: 2.5rem;
  text-align: center;
  margin-bottom: 12px;
  filter: drop-shadow(0 0 10px rgba(124,110,245,0.5));
}

.modal-title {
  font-size: 1.35rem;
  font-weight: 700;
  text-align: center;
  margin-bottom: 4px;
  letter-spacing: -0.02em;
}

.modal-artist {
  font-size: 0.9rem;
  color: var(--text2);
  text-align: center;
  margin-bottom: 24px;
}

/* ── Forms ── */
.form-group {
  margin-bottom: 16px;
}
.form-group label {
  display: block;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text2);
  margin-bottom: 8px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.optional {
  font-weight: 400;
  text-transform: none;
  letter-spacing: 0;
  opacity: 0.7;
}
.form-group input {
  width: 100%;
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text);
  padding: 12px 14px;
  font-size: 0.95rem;
  font-family: inherit;
  outline: none;
  transition: border-color 0.2s, box-shadow 0.2s;
}
.form-group input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-glow);
}
.form-group input::placeholder { color: var(--text2); }

/* ── Submit Button ── */
.submit-btn {
  width: 100%;
  background: linear-gradient(135deg, var(--accent) 0%, #5a4ef0 100%);
  border: none;
  border-radius: var(--radius);
  color: #fff;
  padding: 14px;
  font-size: 0.95rem;
  font-weight: 700;
  font-family: inherit;
  cursor: pointer;
  transition: all 0.2s;
  letter-spacing: 0.01em;
  box-shadow: 0 4px 20px var(--accent-glow);
}
.submit-btn:hover {
  filter: brightness(1.1);
  transform: translateY(-1px);
  box-shadow: 0 6px 24px var(--accent-glow);
}
.submit-btn:active { transform: translateY(0); }
.submit-btn:disabled { opacity: 0.5; cursor: not-allowed; transform: none; }

/* ── Toast ── */
.toast {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%) translateY(0);
  background: var(--bg3);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 12px 20px;
  border-radius: 99px;
  font-size: 0.9rem;
  font-weight: 500;
  z-index: 100;
  white-space: nowrap;
  box-shadow: 0 8px 24px rgba(0,0,0,0.4);
  animation: toastIn 0.25s ease;
}
.toast.success { border-color: var(--success); color: var(--success); }
.toast.error { border-color: var(--danger); color: var(--danger); }
@keyframes toastIn {
  from { opacity: 0; transform: translateX(-50%) translateY(12px); }
  to   { opacity: 1; transform: translateX(-50%) translateY(0); }
}

/* ── Admin Login ── */
#admin-login-view {
  justify-content: center;
  align-items: center;
  background: radial-gradient(ellipse at 50% 0%, rgba(124,110,245,0.08) 0%, transparent 60%);
}

.admin-card {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 32px 28px;
  width: 100%;
  max-width: 400px;
  margin: 24px 20px;
}

.back-btn {
  background: none;
  border: none;
  color: var(--text2);
  font-size: 0.85rem;
  cursor: pointer;
  padding: 0 0 20px 0;
  font-family: inherit;
  display: block;
  transition: color 0.15s;
}
.back-btn:hover { color: var(--text); }

.admin-card-header {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 24px;
}
.admin-card-header h2 {
  font-size: 1.4rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.error-msg {
  background: rgba(232,85,85,0.12);
  border: 1px solid rgba(232,85,85,0.3);
  color: var(--danger);
  border-radius: var(--radius-sm);
  padding: 10px 14px;
  font-size: 0.85rem;
  margin-bottom: 16px;
}

/* ── Admin Dashboard ── */
#admin-dashboard-view {
  background: var(--bg);
}

.admin-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 20px 16px;
  border-bottom: 1px solid var(--border);
  background: var(--bg2);
  position: sticky;
  top: 0;
  z-index: 10;
}

.admin-toolbar-left {
  display: flex;
  align-items: center;
  gap: 10px;
}
.admin-toolbar-left h2 {
  font-size: 1.15rem;
  font-weight: 700;
}

.request-badge {
  background: var(--accent);
  color: #fff;
  font-size: 0.72rem;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: 99px;
  min-width: 24px;
  text-align: center;
}

.admin-toolbar-right {
  display: flex;
  gap: 8px;
}

.icon-btn {
  background: var(--bg3);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: 0.82rem;
  font-weight: 600;
  font-family: inherit;
  transition: all 0.15s;
}
.icon-btn:hover {
  background: var(--bg);
  border-color: rgba(255,255,255,0.2);
}
.icon-btn.danger {
  color: var(--danger);
  border-color: rgba(232,85,85,0.3);
}
.icon-btn.danger:hover {
  background: rgba(232,85,85,0.1);
  border-color: var(--danger);
}

/* ── Requests List ── */
.requests-list {
  flex: 1;
  padding: 12px 16px;
  max-width: 700px;
  margin: 0 auto;
  width: 100%;
}

.no-requests {
  text-align: center;
  color: var(--text2);
  padding: 60px 0;
  font-size: 0.95rem;
}

.request-item {
  display: flex;
  align-items: center;
  gap: 12px;
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 14px 16px;
  margin-bottom: 6px;
  animation: slideDown 0.2s ease;
}
@keyframes slideDown {
  from { opacity: 0; transform: translateY(-6px); }
  to   { opacity: 1; transform: translateY(0); }
}

.request-info { flex: 1; min-width: 0; }
.request-song {
  font-size: 0.95rem;
  font-weight: 600;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.request-meta {
  font-size: 0.78rem;
  color: var(--text2);
  margin-top: 3px;
}

.requester-name {
  color: var(--accent);
  font-weight: 500;
}

.clear-btn {
  background: none;
  border: 1px solid var(--border);
  color: var(--text2);
  width: 30px;
  height: 30px;
  border-radius: 50%;
  cursor: pointer;
  font-size: 0.8rem;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: all 0.15s;
}
.clear-btn:hover {
  background: rgba(232,85,85,0.12);
  border-color: var(--danger);
  color: var(--danger);
}