/* Dark theme — TTS Web App */
:root {
  --bg: #0d1117;
  --surface: #161b22;
  --surface2: #21262d;
  --border: #30363d;
  --text: #e6edf3;
  --text-muted: #8b949e;
  --accent: #58a6ff;
  --accent-hover: #79b8ff;
  --success: #3fb950;
  --warning: #d29922;
  --danger: #f85149;
  --radius: 8px;
}

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

html { font-size: 16px; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;
  line-height: 1.6;
  min-height: 100vh;
}

a { color: var(--accent); text-decoration: none; }
a:hover { color: var(--accent-hover); text-decoration: underline; }

/* Layout */
.container {
  max-width: 900px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* Header */
.site-header {
  border-bottom: 1px solid var(--border);
  padding: 0.75rem 0;
  background: var(--surface);
  position: sticky;
  top: 0;
  z-index: 100;
}
.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.site-logo {
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--text);
  letter-spacing: 0.05em;
}
.site-logo:hover { color: var(--accent); text-decoration: none; }
.site-nav { display: flex; align-items: center; gap: 1.5rem; }
.site-nav a { color: var(--text-muted); font-size: 0.9rem; }
.site-nav a:hover { color: var(--text); text-decoration: none; }

main.container { padding-top: 2rem; padding-bottom: 2rem; }

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.45rem 1rem;
  border-radius: var(--radius);
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
  border: 1px solid transparent;
  transition: background 0.15s, color 0.15s, border-color 0.15s;
  text-decoration: none;
  line-height: 1.4;
}
.btn:hover { text-decoration: none; }
.btn-primary { background: var(--accent); color: #0d1117; border-color: var(--accent); }
.btn-primary:hover { background: var(--accent-hover); border-color: var(--accent-hover); color: #0d1117; }
.btn-ghost { background: transparent; color: var(--text-muted); border-color: var(--border); }
.btn-ghost:hover { background: var(--surface2); color: var(--text); }
.btn-sm { padding: 0.3rem 0.7rem; font-size: 0.8rem; }
.btn-full { width: 100%; justify-content: center; }
.btn-link {
  background: none; border: none; color: var(--text-muted); font-size: 0.9rem;
  cursor: pointer; padding: 0;
}
.btn-link:hover { color: var(--text); }
.inline-form { display: inline; }

/* Page header */
.page-header {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1.5rem;
  flex-wrap: wrap;
}
.page-header h1 { font-size: 1.5rem; font-weight: 600; flex: 1; }
.header-actions { display: flex; gap: 0.75rem; align-items: center; }

/* Forms */
.form-group { margin-bottom: 1.25rem; }
.form-group label {
  display: block;
  font-size: 0.875rem;
  color: var(--text-muted);
  margin-bottom: 0.4rem;
  font-weight: 500;
}
.form-group input[type="text"],
.form-group input[type="password"],
.form-group input[type="file"],
.form-group textarea,
.form-group select {
  width: 100%;
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
  padding: 0.55rem 0.85rem;
  font-size: 0.9rem;
  font-family: inherit;
  transition: border-color 0.15s;
  outline: none;
}
.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  border-color: var(--accent);
}
.form-group textarea { resize: vertical; }
.required { color: var(--danger); }
.form-actions { margin-top: 1.5rem; }

/* Tabs */
.input-tabs { margin-bottom: 1rem; }
.tab-buttons { display: flex; gap: 0; margin-bottom: 0; border-bottom: 1px solid var(--border); }
.tab-btn {
  background: none; border: none; border-bottom: 2px solid transparent;
  color: var(--text-muted); padding: 0.6rem 1rem; font-size: 0.875rem;
  cursor: pointer; margin-bottom: -1px;
  transition: color 0.15s, border-color 0.15s;
}
.tab-btn.active { color: var(--accent); border-bottom-color: var(--accent); }
.tab-btn:hover { color: var(--text); }
.tab-pane { display: none; padding-top: 1rem; }
.tab-pane.active { display: block; }

/* Login page */
.login-page {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  background: var(--bg);
}
.login-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 2.5rem;
  width: 100%;
  max-width: 380px;
}
.login-card h1 {
  font-size: 2rem;
  font-weight: 700;
  text-align: center;
  margin-bottom: 0.25rem;
  color: var(--text);
}
.login-card .subtitle {
  text-align: center;
  color: var(--text-muted);
  font-size: 0.9rem;
  margin-bottom: 2rem;
}

/* Job list */
.job-list { display: flex; flex-direction: column; gap: 0.75rem; }
.job-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem 1.25rem;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
  transition: border-color 0.15s;
}
.job-card:hover { border-color: var(--accent); }
.job-info { flex: 1; min-width: 0; }
.job-title { font-weight: 600; font-size: 1rem; color: var(--text); }
.job-title:hover { color: var(--accent); }
.job-desc { color: var(--text-muted); font-size: 0.85rem; margin-top: 0.2rem; }
.job-meta { display: flex; align-items: center; gap: 0.75rem; margin-top: 0.5rem; flex-wrap: wrap; }
.job-date { font-size: 0.8rem; color: var(--text-muted); }
.job-duration { font-size: 0.8rem; color: var(--text-muted); }
.job-actions { flex-shrink: 0; }

/* Status badges */
.status-badge {
  display: inline-block;
  padding: 0.15rem 0.55rem;
  border-radius: 20px;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
.status-queued { background: rgba(139,148,158,0.15); color: var(--text-muted); }
.status-processing { background: rgba(88,166,255,0.15); color: var(--accent); }
.status-completed { background: rgba(63,185,80,0.15); color: var(--success); }
.status-failed { background: rgba(248,81,73,0.15); color: var(--danger); }

/* Job detail */
.job-detail { max-width: 700px; }
.job-desc-detail { color: var(--text-muted); margin-bottom: 1rem; }
.status-row { display: flex; align-items: center; gap: 1rem; margin-bottom: 1.5rem; flex-wrap: wrap; }

/* Audio player */
.audio-player { margin: 1.5rem 0; }
.audio-player audio { width: 100%; }
.download-row { margin-top: 0.75rem; }

/* Processing spinner */
.processing-indicator {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  color: var(--text-muted);
  margin: 1.5rem 0;
  font-size: 0.9rem;
}
.spinner {
  width: 20px; height: 20px;
  border: 2px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  flex-shrink: 0;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* Conversion form */
.conversion-form { max-width: 700px; }

/* Empty state */
.empty-state { text-align: center; padding: 3rem 1rem; color: var(--text-muted); }

/* Error / alert */
.error-message {
  background: rgba(248,81,73,0.1);
  border: 1px solid rgba(248,81,73,0.3);
  color: var(--danger);
  border-radius: var(--radius);
  padding: 0.75rem 1rem;
  margin-bottom: 1rem;
  font-size: 0.875rem;
}