/* ==========================================================================
   Blog Assistant — Stylesheet
   ========================================================================== */

:root {
  --color-bg: #f6f5f2;
  --color-surface: #ffffff;
  --color-border: #e4e1da;
  --color-text: #1f1d1a;
  --color-text-muted: #6b675f;
  --color-primary: #b5541e;
  --color-primary-hover: #9a4517;
  --color-primary-light: #fbeee3;
  --color-accent: #2f5d50;
  --color-danger: #c0392b;
  --color-danger-light: #fbeae8;
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;
  --shadow-sm: 0 1px 2px rgba(31, 29, 26, 0.06);
  --shadow-md: 0 4px 14px rgba(31, 29, 26, 0.08);
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Inter, Roboto, Helvetica, Arial, sans-serif;
  --font-serif: Georgia, "Iowan Old Style", "Times New Roman", serif;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-sans);
  -webkit-font-smoothing: antialiased;
}

.hidden { display: none !important; }

/* ---------------------------------------------------------------------- */
/* Layout                                                                  */
/* ---------------------------------------------------------------------- */

.app {
  max-width: 1180px;
  margin: 0 auto;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.app-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
  padding: 20px 24px;
  border-bottom: 1px solid var(--color-border);
  background: var(--color-surface);
  position: sticky;
  top: 0;
  z-index: 10;
}

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

.brand-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: var(--radius-sm);
  background: var(--color-primary);
  color: #fff;
  font-size: 1rem;
}

.tabs {
  display: flex;
  gap: 4px;
  background: var(--color-bg);
  padding: 4px;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
}

.tab-btn {
  border: none;
  background: transparent;
  padding: 9px 16px;
  border-radius: var(--radius-sm);
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--color-text-muted);
  cursor: pointer;
  transition: background 0.15s ease, color 0.15s ease;
}

.tab-btn:hover { color: var(--color-text); }

.tab-btn.active {
  background: var(--color-surface);
  color: var(--color-primary);
  box-shadow: var(--shadow-sm);
}

.app-main {
  flex: 1;
  padding: 32px 24px 64px;
}

.view { display: none; }
.view.active { display: block; animation: fadeIn 0.2s ease; }

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(4px); }
  to { opacity: 1; transform: translateY(0); }
}

.view-header { margin-bottom: 24px; }
.view-header h1 { margin: 0 0 6px; font-size: 1.6rem; }
.view-subtitle { margin: 0; color: var(--color-text-muted); font-size: 0.95rem; }

/* ---------------------------------------------------------------------- */
/* Cards & forms                                                           */
/* ---------------------------------------------------------------------- */

.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 22px;
  box-shadow: var(--shadow-sm);
  margin-bottom: 24px;
}

.card-title {
  margin: 0 0 16px;
  font-size: 1.05rem;
}

.grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  align-items: start;
}

.form-row {
  margin-bottom: 16px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.form-row label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-text);
}

.optional {
  font-weight: 400;
  color: var(--color-text-muted);
}

input[type="text"],
textarea {
  width: 100%;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 10px 12px;
  font-family: inherit;
  font-size: 0.92rem;
  color: var(--color-text);
  background: var(--color-bg);
  resize: vertical;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

input[type="text"]:focus,
textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-light);
  background: var(--color-surface);
}

.hint {
  font-size: 0.82rem;
  color: var(--color-text-muted);
  margin: 8px 0 0;
}

/* ---------------------------------------------------------------------- */
/* Buttons                                                                 */
/* ---------------------------------------------------------------------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border: none;
  border-radius: var(--radius-sm);
  padding: 10px 18px;
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.15s ease, transform 0.05s ease, opacity 0.15s ease;
  font-family: inherit;
}

.btn:active { transform: translateY(1px); }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }

.btn-primary {
  background: var(--color-primary);
  color: #fff;
}
.btn-primary:hover:not(:disabled) { background: var(--color-primary-hover); }

.btn-secondary {
  background: var(--color-bg);
  color: var(--color-text);
  border: 1px solid var(--color-border);
}
.btn-secondary:hover:not(:disabled) { background: #ece9e2; }

.btn-block { width: 100%; margin-top: 4px; }

.btn-record {
  background: var(--color-danger-light);
  color: var(--color-danger);
  border: 1px solid #f0c6c0;
}
.btn-record:hover { background: #f8d9d4; }
.btn-record.recording {
  background: var(--color-danger);
  color: #fff;
}

.rec-dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: currentColor;
  display: inline-block;
}
.btn-record.recording .rec-dot { animation: pulse 1.1s infinite; }

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.35; }
}

.btn-action {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  color: var(--color-text);
  font-size: 0.85rem;
  padding: 8px 14px;
}
.btn-action:hover:not(:disabled) {
  border-color: var(--color-accent);
  color: var(--color-accent);
}
.action-icon { font-size: 0.95rem; }

.btn-danger-ghost {
  background: transparent;
  color: var(--color-danger);
  border: none;
  padding: 4px 8px;
  font-size: 0.8rem;
}
.btn-danger-ghost:hover { text-decoration: underline; }

/* ---------------------------------------------------------------------- */
/* Idea Bank                                                               */
/* ---------------------------------------------------------------------- */

.list-header {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 14px;
}
.list-header h2 { margin: 0; font-size: 1.1rem; }

.badge {
  background: var(--color-primary-light);
  color: var(--color-primary);
  font-size: 0.78rem;
  font-weight: 700;
  padding: 2px 9px;
  border-radius: 999px;
}

.ideas-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.idea-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 14px 16px;
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: flex-start;
}

.idea-card-body h3 {
  margin: 0 0 4px;
  font-size: 0.98rem;
}

.idea-card-body p {
  margin: 0 0 6px;
  color: var(--color-text-muted);
  font-size: 0.88rem;
  white-space: pre-wrap;
}

.idea-card-date {
  font-size: 0.75rem;
  color: var(--color-text-muted);
}

.empty-state {
  color: var(--color-text-muted);
  font-size: 0.9rem;
  padding: 18px 4px;
  text-align: center;
  border: 1px dashed var(--color-border);
  border-radius: var(--radius-md);
}

/* ---------------------------------------------------------------------- */
/* Recorder                                                                */
/* ---------------------------------------------------------------------- */

.recorder-controls {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 8px;
}

.record-timer {
  font-variant-numeric: tabular-nums;
  font-weight: 600;
  color: var(--color-text-muted);
}

.audio-preview {
  width: 100%;
  margin: 14px 0 4px;
}

.divider {
  display: flex;
  align-items: center;
  text-align: center;
  color: var(--color-text-muted);
  font-size: 0.78rem;
  margin: 18px 0;
}
.divider::before, .divider::after {
  content: "";
  flex: 1;
  border-bottom: 1px solid var(--color-border);
}
.divider span { padding: 0 10px; }

.upload-zone {
  border: 1.5px dashed var(--color-border);
  border-radius: var(--radius-md);
  text-align: center;
  padding: 20px;
  transition: border-color 0.15s ease, background 0.15s ease;
}
.upload-zone:hover { border-color: var(--color-primary); background: var(--color-primary-light); }

.upload-label {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  cursor: pointer;
  font-weight: 600;
  font-size: 0.9rem;
}

.upload-icon { font-size: 1.3rem; color: var(--color-primary); }
.upload-hint { font-weight: 400; font-size: 0.78rem; color: var(--color-text-muted); }

.transcript-box {
  margin-top: 18px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.transcript-box label {
  font-size: 0.85rem;
  font-weight: 600;
}

/* ---------------------------------------------------------------------- */
/* Editor                                                                  */
/* ---------------------------------------------------------------------- */

.editor-toolbar {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 14px;
}

.draft-title-input {
  flex: 1;
  min-width: 220px;
  font-size: 1.1rem;
  font-weight: 700;
  border: none;
  background: transparent;
  padding: 6px 2px;
  border-bottom: 2px solid transparent;
}
.draft-title-input:focus {
  outline: none;
  border-bottom-color: var(--color-primary);
  box-shadow: none;
  background: transparent;
}

.toolbar-actions { display: flex; gap: 10px; }

.action-toolkit {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 10px 14px;
  margin-bottom: 18px;
}

.action-status {
  font-size: 0.82rem;
  color: var(--color-text-muted);
  margin-left: auto;
}

.editor-grid {
  display: grid;
  grid-template-columns: 1fr 280px;
  gap: 20px;
  align-items: start;
}

.editor-main { min-width: 0; }

.draft-content {
  width: 100%;
  min-height: 520px;
  font-family: var(--font-serif);
  font-size: 1.02rem;
  line-height: 1.7;
  padding: 24px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  box-shadow: var(--shadow-sm);
}

.editor-sidebar {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 16px;
  position: sticky;
  top: 96px;
}

.editor-sidebar h3 {
  margin: 0 0 12px;
  font-size: 0.95rem;
}

.drafts-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
  max-height: 60vh;
  overflow-y: auto;
}

.draft-list-item {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 10px 12px;
  cursor: pointer;
  transition: border-color 0.15s ease, background 0.15s ease;
}
.draft-list-item:hover { border-color: var(--color-primary); }
.draft-list-item.selected {
  border-color: var(--color-primary);
  background: var(--color-primary-light);
}

.draft-list-item h4 {
  margin: 0 0 3px;
  font-size: 0.86rem;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.draft-list-item .draft-list-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.72rem;
  color: var(--color-text-muted);
}

/* ---------------------------------------------------------------------- */
/* Toast                                                                   */
/* ---------------------------------------------------------------------- */

.toast {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--color-text);
  color: #fff;
  padding: 11px 20px;
  border-radius: var(--radius-md);
  font-size: 0.88rem;
  box-shadow: var(--shadow-md);
  z-index: 100;
  animation: toastIn 0.2s ease;
}
.toast.toast-error { background: var(--color-danger); }

@keyframes toastIn {
  from { opacity: 0; transform: translate(-50%, 8px); }
  to { opacity: 1; transform: translate(-50%, 0); }
}

/* ---------------------------------------------------------------------- */
/* Responsive                                                              */
/* ---------------------------------------------------------------------- */

@media (max-width: 860px) {
  .grid-2 { grid-template-columns: 1fr; }
  .editor-grid { grid-template-columns: 1fr; }
  .editor-sidebar { position: static; }
}

@media (max-width: 560px) {
  .app-header { flex-direction: column; align-items: stretch; }
  .tabs { justify-content: space-between; }
  .tab-btn { flex: 1; text-align: center; padding: 9px 8px; font-size: 0.82rem; }
  .app-main { padding: 20px 14px 48px; }
}