/* ===== App layout — generator page only ===== */

.app-body {
  min-height: 100vh;
  background: var(--bg);
}

/* Nav */
.app-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 32px;
  border-bottom: 1px solid var(--border);
  background: rgba(10, 10, 15, 0.85);
  backdrop-filter: blur(12px);
}

.nav-logo {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--fg);
  text-decoration: none;
  letter-spacing: -0.02em;
}

.nav-logo:hover { color: var(--accent); }

.nav-tagline {
  font-size: 0.8rem;
  color: var(--fg-muted);
  border-left: 1px solid var(--border);
  padding-left: 12px;
}

/* Main two-column layout */
.app-main {
  display: grid;
  grid-template-columns: 420px 1fr;
  gap: 32px;
  max-width: 1200px;
  margin: 0 auto;
  padding: 40px 32px 80px;
  min-height: calc(100vh - 65px);
}

@media (max-width: 860px) {
  .app-main { grid-template-columns: 1fr; padding: 24px 16px 60px; }
}

/* Input panel */
.input-panel {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  height: fit-content;
  position: sticky;
  top: 88px;
}

@media (max-width: 860px) {
  .input-panel { position: static; }
}

.panel-title {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 4px;
}

.panel-sub {
  font-size: 0.875rem;
  color: var(--fg-muted);
  margin-bottom: 28px;
}

/* Form fields */
.field-group { margin-bottom: 20px; }
.field-row { display: flex; gap: 16px; }
.field-row .field-group { flex: 1; }

.field-label {
  display: block;
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--fg-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 8px;
}

.field-input {
  width: 100%;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--fg);
  font-family: var(--font-body);
  font-size: 0.9rem;
  padding: 10px 14px;
  outline: none;
  transition: border-color 0.15s;
  resize: none;
}

.field-input::placeholder { color: var(--fg-muted); opacity: 0.6; }
.field-input:focus { border-color: var(--accent); }
.field-textarea { line-height: 1.55; }

/* Tone selector */
.tone-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}

.tone-btn {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--fg-muted);
  font-family: var(--font-body);
  font-size: 0.85rem;
  padding: 8px 12px;
  cursor: pointer;
  transition: all 0.15s;
  text-align: center;
}

.tone-btn:hover { border-color: var(--accent); color: var(--fg); }

.tone-btn.active {
  border-color: var(--accent);
  background: var(--accent-glow);
  color: var(--fg);
  font-weight: 500;
}

/* Voice fingerprinting */
.voice-details {
  border: 1px solid var(--border);
  border-radius: 8px;
  margin-bottom: 24px;
  overflow: hidden;
}

.voice-summary {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 14px;
  font-size: 0.875rem;
  cursor: pointer;
  user-select: none;
  list-style: none;
  color: var(--fg-muted);
  transition: color 0.15s;
}

.voice-summary::-webkit-details-marker { display: none; }
.voice-summary:hover { color: var(--fg); }

.voice-icon { color: var(--hook-purple); font-size: 0.8rem; }

.voice-badge {
  margin-left: auto;
  font-size: 0.7rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 100px;
  padding: 2px 8px;
  color: var(--fg-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.voice-body { padding: 0 14px 14px; }

/* Generate button */
.generate-btn {
  width: 100%;
  background: var(--accent);
  border: none;
  border-radius: 10px;
  color: #fff;
  font-family: var(--font-display);
  font-size: 0.95rem;
  font-weight: 600;
  padding: 14px 24px;
  cursor: pointer;
  transition: opacity 0.15s, transform 0.1s;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

.generate-btn:hover:not(:disabled) { opacity: 0.9; transform: translateY(-1px); }
.generate-btn:disabled { opacity: 0.6; cursor: not-allowed; transform: none; }

/* Spinner */
.spinner-svg { animation: spin 0.9s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

/* Form error */
.form-error {
  margin-top: 12px;
  padding: 10px 14px;
  background: rgba(239, 68, 68, 0.1);
  border: 1px solid rgba(239, 68, 68, 0.3);
  border-radius: 8px;
  font-size: 0.85rem;
  color: #f87171;
}

/* Output panel */
.output-panel {
  min-height: 400px;
  display: flex;
  flex-direction: column;
}

.output-empty {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  color: var(--fg-muted);
  gap: 12px;
  border: 1px dashed var(--border);
  border-radius: var(--radius);
  padding: 60px 24px;
}

.empty-icon {
  font-size: 2rem;
  opacity: 0.4;
}

/* Post cards */
.output-cards {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.post-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  transition: border-color 0.2s;
  position: relative;
  animation: cardIn 0.3s ease both;
}

@keyframes cardIn {
  from { opacity: 0; transform: translateY(12px); }
  to   { opacity: 1; transform: translateY(0); }
}

.post-card:nth-child(2) { animation-delay: 0.08s; }
.post-card:nth-child(3) { animation-delay: 0.16s; }

.post-card:hover { border-color: rgba(79, 125, 249, 0.3); }

.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
}

.hook-label {
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 4px 10px;
  border-radius: 100px;
  border: 1px solid;
}

.hook-label.color-0 { color: var(--accent); border-color: rgba(79,125,249,0.3); background: rgba(79,125,249,0.08); }
.hook-label.color-1 { color: var(--hook-orange); border-color: rgba(249,115,22,0.3); background: rgba(249,115,22,0.08); }
.hook-label.color-2 { color: var(--hook-purple); border-color: rgba(168,85,247,0.3); background: rgba(168,85,247,0.08); }

.copy-btn {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--fg-muted);
  font-family: var(--font-body);
  font-size: 0.8rem;
  padding: 6px 12px;
  cursor: pointer;
  transition: all 0.15s;
  display: flex;
  align-items: center;
  gap: 6px;
}

.copy-btn:hover { border-color: var(--accent); color: var(--fg); }
.copy-btn.copied { color: var(--hook-green); border-color: rgba(34,197,94,0.4); background: rgba(34,197,94,0.08); }

.post-content {
  font-size: 0.925rem;
  line-height: 1.7;
  color: var(--fg);
  white-space: pre-wrap;
  word-break: break-word;
}

/* Loading skeleton */
.skeleton-cards { display: flex; flex-direction: column; gap: 20px; }

.skeleton-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  animation: pulse 1.4s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50%       { opacity: 0.55; }
}

.skeleton-line {
  height: 12px;
  border-radius: 6px;
  background: var(--bg-elevated);
  margin-bottom: 10px;
}

.skeleton-line.short { width: 30%; }
.skeleton-line.medium { width: 70%; }
.skeleton-line.long { width: 90%; }
.skeleton-line.full { width: 100%; }