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

:root {
  --primary: #6366f1;
  --primary-hover: #4f46e5;
  --primary-light: #eef2ff;
  --bg: #f8fafc;
  --card-bg: #ffffff;
  --text: #1e293b;
  --text-secondary: #64748b;
  --border: #e2e8f0;
  --border-focus: #6366f1;
  --danger: #ef4444;
  --success: #22c55e;
  --radius: 12px;
  --shadow: 0 1px 3px rgba(0, 0, 0, 0.08), 0 1px 2px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.1), 0 4px 10px rgba(0, 0, 0, 0.06);
  --transition: 0.2s ease;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial,
    "PingFang SC", "Microsoft YaHei", sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  min-height: 100vh;
}

/* ===== Container ===== */
.container {
  max-width: 900px;
  margin: 0 auto;
  padding: 24px 16px 48px;
}

/* ===== Header ===== */
.header {
  text-align: center;
  padding: 32px 0 24px;
}

.title {
  font-size: 2rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 8px;
  letter-spacing: -0.02em;
}

.subtitle {
  font-size: 0.95rem;
  color: var(--text-secondary);
}

/* ===== Main ===== */
.main {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

/* ===== Input Group ===== */
.input-group {
  background: var(--card-bg);
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--border);
}

.input-row {
  margin-bottom: 14px;
}

.input-row:last-child {
  margin-bottom: 0;
}

.input-row-select {
  display: flex;
  gap: 12px;
  align-items: center;
}

/* ===== URL Input ===== */
.url-input {
  width: 100%;
  padding: 14px 16px;
  font-size: 0.95rem;
  border: 2px solid var(--border);
  border-radius: 10px;
  outline: none;
  transition: border-color var(--transition), box-shadow var(--transition);
  background: var(--bg);
  color: var(--text);
}

.url-input:focus {
  border-color: var(--border-focus);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.15);
}

.url-input::placeholder {
  color: #94a3b8;
}

/* ===== API Select ===== */
.api-select {
  flex: 1;
  padding: 12px 14px;
  font-size: 0.95rem;
  border: 2px solid var(--border);
  border-radius: 10px;
  outline: none;
  background: var(--bg);
  color: var(--text);
  cursor: pointer;
  transition: border-color var(--transition), box-shadow var(--transition);
  appearance: none;
  -webkit-appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%2364748b' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
  padding-right: 36px;
}

.api-select:focus {
  border-color: var(--border-focus);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.15);
}

/* ===== Parse Button ===== */
.parse-btn {
  padding: 12px 28px;
  font-size: 0.95rem;
  font-weight: 600;
  color: #fff;
  background: var(--primary);
  border: none;
  border-radius: 10px;
  cursor: pointer;
  transition: background var(--transition), box-shadow var(--transition);
  white-space: nowrap;
  min-width: 140px;
}

.parse-btn:hover:not(:disabled) {
  background: var(--primary-hover);
  box-shadow: 0 4px 12px rgba(99, 102, 241, 0.35);
}

.parse-btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

/* ===== Spinner ===== */
.spinner {
  display: inline-block;
  width: 16px;
  height: 16px;
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
  vertical-align: middle;
  margin-right: 4px;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* ===== Status Message ===== */
.status-msg {
  padding: 14px 18px;
  border-radius: 10px;
  font-size: 0.9rem;
  font-weight: 500;
  text-align: center;
  animation: fadeIn 0.3s ease;
}

.status-msg.error {
  background: #fef2f2;
  color: #991b1b;
  border: 1px solid #fecaca;
}

.status-msg.success {
  background: #f0fdf4;
  color: #166534;
  border: 1px solid #bbf7d0;
}

.status-msg.info {
  background: #eff6ff;
  color: #1e40af;
  border: 1px solid #bfdbfe;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(-8px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ===== Player Wrapper ===== */
.player-wrapper {
  background: #000;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  animation: fadeIn 0.4s ease;
}

#artplayer {
  width: 100%;
  aspect-ratio: 16 / 9;
}

/* ===== Tips ===== */
.tips {
  background: var(--card-bg);
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
}

.tips h3 {
  font-size: 1rem;
  margin-bottom: 12px;
  color: var(--text);
}

.tips ol {
  padding-left: 20px;
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 2;
}

.tips-note {
  margin-top: 14px;
  padding-top: 14px;
  border-top: 1px solid var(--border);
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.tips code {
  background: var(--primary-light);
  color: var(--primary);
  padding: 2px 8px;
  border-radius: 4px;
  font-size: 0.85em;
  font-weight: 500;
}

/* ===== Footer ===== */
.footer {
  text-align: center;
  padding: 32px 0 16px;
  color: var(--text-secondary);
  font-size: 0.8rem;
}

/* ===== Responsive ===== */
@media (max-width: 640px) {
  .container {
    padding: 12px 12px 32px;
  }

  .header {
    padding: 20px 0 16px;
  }

  .title {
    font-size: 1.5rem;
  }

  .subtitle {
    font-size: 0.85rem;
  }

  .input-group {
    padding: 16px;
  }

  .input-row-select {
    flex-direction: column;
    gap: 10px;
  }

  .api-select {
    width: 100%;
  }

  .parse-btn {
    width: 100%;
    min-width: unset;
  }

  .tips {
    padding: 16px;
  }
}