/* ── Design System — Warm Literary Theme ───────────────────────────────────── */
:root {
  --font-heading: 'Playfair Display', Georgia, serif;
  --font-body: 'DM Sans', system-ui, sans-serif;
  --font-mono: 'DM Mono', monospace;

  --bg:           oklch(97% 0.015 75);
  --bg-alt:       oklch(94% 0.02 75);
  --bg-panel:     oklch(95% 0.018 70);
  --bg-card:      oklch(99% 0.008 75);
  --nav-bg:       oklch(22% 0.03 55);
  --nav-text:     oklch(90% 0.015 75);
  --nav-active:   oklch(70% 0.12 55);
  --border:       oklch(85% 0.025 70);
  --border-strong:oklch(72% 0.04 65);
  --text:         oklch(22% 0.03 55);
  --text-muted:   oklch(52% 0.03 60);
  --text-light:   oklch(65% 0.025 65);
  --accent:       oklch(48% 0.1 50);
  --accent-hover: oklch(42% 0.1 50);
  --accent-light: oklch(93% 0.04 65);
  --accent-text:  oklch(99% 0.005 75);
  --success:      oklch(52% 0.12 155);
  --success-light:oklch(94% 0.04 155);
  --danger:       oklch(52% 0.18 25);
  --danger-light: oklch(95% 0.04 25);
  --user-bubble:       oklch(48% 0.1 50);
  --user-bubble-text:  oklch(99% 0.005 75);
  --agent-bubble:      oklch(99% 0.008 75);
  --agent-bubble-text: oklch(22% 0.03 55);
  --input-bg:     oklch(99.5% 0.004 75);
  --shadow:       0 1px 3px oklch(30% 0.04 55 / 0.12), 0 4px 12px oklch(30% 0.04 55 / 0.06);
  --shadow-md:    0 4px 16px oklch(30% 0.04 55 / 0.14), 0 1px 4px oklch(30% 0.04 55 / 0.08);
  --radius-sm: 4px;
  --radius:    8px;
  --radius-lg: 12px;
  --radius-xl: 18px;
}

/* ── Base ─────────────────────────────────────────────────────────────────── */

html, body {
  font-family: var(--font-body);
  font-size: 14px;
  color: var(--text);
  background-color: var(--bg);
  height: 100%;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  color: var(--text);
}

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

a:hover {
  color: var(--accent-hover);
  text-decoration: underline;
}

code, pre, .font-mono {
  font-family: var(--font-mono);
}

/* ── Bootstrap overrides ──────────────────────────────────────────────────── */

.card {
  background-color: var(--bg-card);
  border-color: var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
}

.card-header {
  background-color: var(--bg-alt);
  border-bottom-color: var(--border);
  font-family: var(--font-heading);
  font-weight: 600;
  color: var(--text);
}

.card-body {
  color: var(--text);
}

.form-control, .form-select {
  background-color: var(--input-bg);
  border-color: var(--border);
  border-radius: var(--radius);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 0.9375rem;
  transition: border-color 0.15s, box-shadow 0.15s;
}

.form-control:focus, .form-select:focus {
  background-color: var(--input-bg);
  border-color: var(--accent);
  box-shadow: 0 0 0 3px oklch(48% 0.1 50 / 0.15);
  color: var(--text);
}

.form-control::placeholder {
  color: var(--text-light);
}

.form-label {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-muted);
  margin-bottom: 0.4rem;
}

.form-text {
  color: var(--text-light);
  font-size: 0.8125rem;
}

.btn-primary {
  background-color: var(--accent);
  border-color: var(--accent);
  color: var(--accent-text);
  font-family: var(--font-body);
  font-weight: 500;
  border-radius: var(--radius);
  padding: 0.5rem 1.25rem;
  transition: background-color 0.15s, border-color 0.15s;
}

.btn-primary:hover, .btn-primary:focus {
  background-color: var(--accent-hover);
  border-color: var(--accent-hover);
  color: var(--accent-text);
}

.btn-primary:disabled {
  background-color: var(--accent);
  border-color: var(--accent);
  opacity: 0.55;
}

.btn-outline-secondary {
  border-color: var(--border-strong);
  color: var(--text-muted);
  border-radius: var(--radius);
  font-family: var(--font-body);
}

.btn-outline-secondary:hover {
  background-color: var(--bg-alt);
  border-color: var(--border-strong);
  color: var(--text);
}

.btn-link {
  color: var(--accent);
  font-family: var(--font-body);
}

.btn-link:hover {
  color: var(--accent-hover);
}

.btn:focus, .btn:active:focus {
  box-shadow: 0 0 0 3px oklch(48% 0.1 50 / 0.2);
}

.alert-danger {
  background-color: var(--danger-light);
  border-color: oklch(52% 0.18 25 / 0.3);
  color: var(--danger);
  border-radius: var(--radius);
}

.alert-success {
  background-color: var(--success-light);
  border-color: oklch(52% 0.12 155 / 0.3);
  color: var(--success);
  border-radius: var(--radius);
}

.alert-warning {
  background-color: oklch(95% 0.04 80);
  border-color: oklch(80% 0.08 80 / 0.4);
  color: oklch(42% 0.1 65);
  border-radius: var(--radius);
}

.badge {
  font-family: var(--font-body);
  font-weight: 500;
}

.badge.bg-primary {
  background-color: var(--accent) !important;
}

hr {
  border-color: var(--border);
  opacity: 1;
}

.text-muted {
  color: var(--text-muted) !important;
}

.dropdown-menu {
  background-color: var(--bg-card);
  border-color: var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  font-family: var(--font-body);
  font-size: 0.875rem;
  padding: 6px;
}

.dropdown-item {
  color: var(--text);
  border-radius: var(--radius-sm);
  padding: 8px 12px;
  transition: background-color 0.12s;
}

.dropdown-item:hover, .dropdown-item:focus {
  background-color: var(--bg-alt);
  color: var(--text);
}

.dropdown-item.active, .dropdown-item:active {
  background-color: var(--accent-light);
  color: var(--accent);
}

.dropdown-divider {
  border-color: var(--border);
  margin: 4px 0;
}

/* ── Theme overrides ──────────────────────────────────────────────────────── */
/* Warm Literary is the :root default — no override block needed.             */

[data-theme="dark"] {
  --font-heading: 'DM Sans', system-ui, sans-serif;
  --bg:           oklch(12% 0.01 250);
  --bg-alt:       oklch(16% 0.012 250);
  --bg-panel:     oklch(15% 0.012 250);
  --bg-card:      oklch(18% 0.015 250);
  --nav-bg:       oklch(10% 0.01 250);
  --nav-text:     oklch(75% 0.01 250);
  --nav-active:   oklch(65% 0.2 250);
  --border:       oklch(24% 0.015 250);
  --border-strong:oklch(35% 0.02 250);
  --text:         oklch(90% 0.01 250);
  --text-muted:   oklch(58% 0.015 250);
  --text-light:   oklch(45% 0.012 250);
  --accent:       oklch(62% 0.2 250);
  --accent-hover: oklch(68% 0.22 250);
  --accent-light: oklch(20% 0.06 250);
  --accent-text:  oklch(98% 0.005 250);
  --success:      oklch(62% 0.16 155);
  --success-light:oklch(18% 0.05 155);
  --danger:       oklch(62% 0.2 25);
  --danger-light: oklch(18% 0.06 25);
  --user-bubble:       oklch(62% 0.2 250);
  --user-bubble-text:  oklch(98% 0.005 250);
  --agent-bubble:      oklch(18% 0.015 250);
  --agent-bubble-text: oklch(90% 0.01 250);
  --input-bg:     oklch(16% 0.012 250);
  --shadow:       0 1px 3px oklch(5% 0.01 250 / 0.5), 0 4px 12px oklch(5% 0.01 250 / 0.3);
  --shadow-md:    0 4px 16px oklch(5% 0.01 250 / 0.5), 0 1px 4px oklch(5% 0.01 250 / 0.3);
  --radius-sm: 4px; --radius: 8px; --radius-lg: 12px; --radius-xl: 18px;
}

[data-theme="editorial"] {
  --font-heading: 'Cormorant Garamond', Georgia, serif;
  --bg:           oklch(99.5% 0.002 60);
  --bg-alt:       oklch(97% 0.004 60);
  --bg-panel:     oklch(97.5% 0.003 60);
  --bg-card:      oklch(100% 0 0);
  --nav-bg:       oklch(99.5% 0.002 60);
  --nav-text:     oklch(20% 0.005 60);
  --nav-active:   oklch(20% 0.005 60);
  --border:       oklch(88% 0.005 60);
  --border-strong:oklch(70% 0.008 60);
  --text:         oklch(12% 0.005 60);
  --text-muted:   oklch(50% 0.006 60);
  --text-light:   oklch(65% 0.005 60);
  --accent:       oklch(20% 0.005 60);
  --accent-hover: oklch(35% 0.005 60);
  --accent-light: oklch(94% 0.005 60);
  --accent-text:  oklch(99% 0.002 60);
  --success:      oklch(42% 0.1 155);
  --success-light:oklch(95% 0.03 155);
  --danger:       oklch(45% 0.15 25);
  --danger-light: oklch(96% 0.03 25);
  --user-bubble:       oklch(14% 0.005 60);
  --user-bubble-text:  oklch(99% 0.002 60);
  --agent-bubble:      oklch(96% 0.003 60);
  --agent-bubble-text: oklch(12% 0.005 60);
  --input-bg:     oklch(100% 0 0);
  --shadow:       0 1px 2px oklch(20% 0.005 60 / 0.08), 0 3px 8px oklch(20% 0.005 60 / 0.05);
  --shadow-md:    0 2px 12px oklch(20% 0.005 60 / 0.1);
  --radius-sm: 2px; --radius: 4px; --radius-lg: 6px; --radius-xl: 10px;
}

/* Editorial nav uses light background — needs dark toggler icon */
[data-theme="editorial"] .sl-navbar .navbar-toggler-icon {
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba%2820%2C 18%2C 14%2C 0.75%29' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
}

/* ── Bootstrap accent overrides ──────────────────────────────────────────── */

.progress { background-color: var(--bg-alt); border-radius: var(--radius-xl); height: 6px; }
.progress-bar { background-color: var(--accent); border-radius: var(--radius-xl); }

.spinner-border { color: var(--accent); }
.text-primary { color: var(--accent) !important; }
.text-success { color: var(--success) !important; }
.text-warning { color: oklch(62% 0.14 75) !important; }
.text-danger { color: var(--danger) !important; }

.btn-outline-primary {
  border-color: var(--accent);
  color: var(--accent);
  border-radius: var(--radius);
  font-family: var(--font-body);
  transition: all 0.15s;
}
.btn-outline-primary:hover, .btn-outline-primary:focus {
  background-color: var(--accent);
  border-color: var(--accent);
  color: var(--accent-text);
}
.btn-outline-primary:disabled {
  border-color: var(--accent);
  color: var(--accent);
  opacity: 0.5;
}

.btn-outline-danger {
  border-color: oklch(52% 0.18 25 / 0.4);
  color: var(--danger);
  border-radius: var(--radius);
  font-family: var(--font-body);
  transition: all 0.15s;
}
.btn-outline-danger:hover {
  background-color: var(--danger-light);
  border-color: var(--danger);
  color: var(--danger);
}

.alert-info {
  background-color: var(--accent-light);
  border-color: oklch(48% 0.1 50 / 0.2);
  color: var(--accent);
  border-radius: var(--radius);
}

.list-group-item {
  background-color: var(--bg-card);
  border-color: var(--border);
  color: var(--text);
  font-family: var(--font-body);
}

.list-group-item + .list-group-item { border-top-color: var(--border); }

.bg-success { background-color: var(--success) !important; }
.bg-warning { background-color: oklch(62% 0.14 75) !important; }
.bg-danger  { background-color: var(--danger) !important; }
.bg-secondary { background-color: var(--text-light) !important; }
.bg-primary { background-color: var(--accent) !important; }

/* ── Navbar ───────────────────────────────────────────────────────────────── */

.sl-navbar {
  background-color: var(--nav-bg) !important;
  box-shadow: 0 1px 3px oklch(20% 0.04 55 / 0.18);
  height: 52px;
  padding: 0 24px;
  position: sticky;
  top: 0;
  z-index: 1030;
  flex-shrink: 0;
}

.sl-brand {
  display: flex;
  align-items: center;
  gap: 9px;
  text-decoration: none;
  user-select: none;
  margin-right: 28px;
  flex-shrink: 0;
}

.sl-brand:hover {
  text-decoration: none;
}

.sl-wordmark {
  font-family: var(--font-heading);
  font-size: 16px;
  letter-spacing: 0.01em;
  line-height: 1;
}

.sl-wordmark-story {
  color: var(--nav-text);
  font-weight: 400;
  opacity: 0.75;
}

.sl-wordmark-loki {
  color: var(--nav-active);
  font-weight: 700;
}

.sl-navbar .navbar-toggler {
  border-color: oklch(90% 0.015 75 / 0.3);
  padding: 4px 8px;
}

.sl-navbar .navbar-toggler-icon {
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba%28232%2C 223%2C 200%2C 0.85%29' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
}

.sl-navbar .nav-link {
  color: var(--nav-text) !important;
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 400;
  opacity: 0.75;
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  transition: opacity 0.15s, color 0.15s;
}

.sl-navbar .nav-link:hover {
  opacity: 1;
  color: var(--nav-text) !important;
}

.sl-navbar .nav-link.active {
  color: var(--nav-active) !important;
  font-weight: 600;
  opacity: 1;
}

.sl-navbar .dropdown-toggle {
  color: var(--nav-text) !important;
}

.sl-navbar .dropdown-toggle.show,
.sl-navbar .dropdown-toggle:focus {
  color: var(--nav-active) !important;
  opacity: 1;
}

.sl-navbar .btn-link.nav-link {
  color: var(--nav-text) !important;
  font-size: 13px;
  opacity: 0.6;
  padding: 4px 8px;
  text-decoration: none;
  transition: opacity 0.15s;
}

.sl-navbar .btn-link.nav-link:hover {
  opacity: 1;
  text-decoration: none;
}

.sl-navbar .dropdown-menu {
  margin-top: 6px;
  min-width: 200px;
}

.sl-avatar {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background-color: var(--accent-light);
  border: 2px solid var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-body);
  font-size: 13px;
  font-weight: 700;
  color: var(--accent);
  cursor: pointer;
  user-select: none;
  flex-shrink: 0;
}

/* ── Layout ───────────────────────────────────────────────────────────────── */

.top-navbar {
  position: sticky;
  top: 0;
  z-index: 1030;
}

.main-content {
  min-height: calc(100vh - 52px);
  background-color: var(--bg);
}

/* ── Auth pages ───────────────────────────────────────────────────────────── */

.auth-container {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  padding: 3rem 1rem;
  min-height: calc(100vh - 52px);
  background-color: var(--bg);
}

.auth-logo {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  margin-bottom: 2rem;
}

.auth-tagline {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--text-muted);
}

.auth-tagline-line {
  height: 1px;
  width: 20px;
  background-color: var(--border);
}

.auth-tagline-text {
  font-family: var(--font-body);
  font-size: 10px;
  color: var(--text-muted);
  letter-spacing: 0.22em;
  text-transform: uppercase;
}

.auth-card {
  width: 100%;
  max-width: 420px;
  background-color: var(--bg-card) !important;
  border-color: var(--border) !important;
  border-radius: var(--radius-lg) !important;
  box-shadow: var(--shadow-md) !important;
}

.auth-card .card-body {
  padding: 2rem !important;
}

.auth-card h1.card-title {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 1.5rem !important;
}

/* ── Settings pages ───────────────────────────────────────────────────────── */

.settings-page {
  max-width: 760px;
  margin: 0 auto;
  padding: 32px 24px 3rem;
}

.settings-page h1 {
  font-family: var(--font-heading);
  font-size: 1.625rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 28px;
}

.settings-page .card-header h2,
.settings-page .card-header h1 {
  font-family: var(--font-heading);
  font-size: 0.875rem;
  font-weight: 600;
  text-transform: none;
}

@media (max-width: 767.98px) {
  .settings-page {
    padding: 16px 0 2rem;
  }

  .settings-page .card-header h2,
  .settings-page .card-header h1 {
    font-size: 0.875rem;
  }

  .settings-page .row.g-3 {
    gap: 0.75rem !important;
  }
}

@media (max-width: 575.98px) {
  .settings-page .card {
    border-radius: 0;
    border-left: none;
    border-right: none;
  }
}

/* ── Genre / tag chips ────────────────────────────────────────────────────── */

.genre-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.genre-btn {
  border-radius: var(--radius-xl);
  padding: 0.25rem 0.875rem;
  font-size: 0.875rem;
  font-family: var(--font-body);
  border: 1px solid var(--border);
  background-color: var(--bg-card);
  color: var(--text-muted);
  cursor: pointer;
  transition: all 0.15s ease;
}

.genre-btn:hover {
  border-color: var(--accent);
  color: var(--accent);
  background-color: var(--accent-light);
}

.genre-btn.active {
  background-color: var(--accent);
  border-color: var(--accent);
  color: var(--accent-text);
}

.author-badge {
  font-size: 0.875rem;
  padding: 0.35em 0.65em;
  display: inline-flex;
  align-items: center;
  background-color: var(--accent-light);
  color: var(--accent);
  border-radius: var(--radius);
}

.suggestion-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem;
}

/* ── Theme selector tiles ─────────────────────────────────────────────────── */

.theme-tiles {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.theme-tile {
  flex: 1;
  min-width: 120px;
  max-width: 180px;
  background: none;
  border: 2px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 0;
  cursor: pointer;
  overflow: hidden;
  transition: border-color 0.15s, box-shadow 0.15s;
  text-align: left;
}

.theme-tile:hover {
  border-color: var(--border-strong);
  box-shadow: var(--shadow);
}

.theme-tile.selected {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px oklch(48% 0.1 50 / 0.15);
}

.theme-tile-preview {
  height: 80px;
  border-bottom: 1px solid;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.theme-tile-nav {
  height: 14px;
  flex-shrink: 0;
}

.theme-tile-content {
  flex: 1;
  padding: 8px 10px;
  display: flex;
  flex-direction: column;
  gap: 5px;
}

.theme-tile-line {
  height: 5px;
  border-radius: 99px;
}

.theme-tile-chip {
  height: 8px;
  width: 32px;
  border-radius: 99px;
  margin-top: 2px;
  opacity: 0.85;
}

.theme-tile-label {
  padding: 8px 10px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.theme-tile-name {
  font-family: var(--font-body);
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--text);
}

.theme-tile-check {
  font-size: 0.75rem;
  color: var(--accent);
  font-weight: 700;
}

/* ── Onboarding ───────────────────────────────────────────────────────────── */

.onboarding-container {
  max-width: 700px;
  margin: 0 auto;
  padding: 1rem 0 3rem;
}

.onboarding-step {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2rem;
  box-shadow: var(--shadow);
}

.onboarding-actions {
  padding-top: 0.5rem;
}

.benefits-list {
  font-size: 0.9375rem;
  color: var(--text-muted);
}

@media (max-width: 767.98px) {
  .onboarding-container {
    padding: 0.5rem 0 2rem;
  }

  .onboarding-step {
    padding: 1.25rem;
  }

  .benefits-list {
    font-size: 0.875rem;
  }
}

/* ── Chat ─────────────────────────────────────────────────────────────────── */

.chat-layout {
  display: flex;
  height: calc(100vh - 52px);
  overflow: hidden;
  margin: -1rem;
}

.chat-container {
  display: flex;
  flex-direction: column;
  flex: 1;
  min-width: 0;
  background: var(--bg-card);
}

.chat-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 1.25rem;
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
  background: var(--bg-panel);
}

.chat-header h5, .chat-header h6 {
  font-family: var(--font-heading);
  color: var(--text);
}

.chat-messages {
  flex: 1;
  overflow-y: auto;
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  background: var(--bg);
}

.chat-welcome {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  flex: 1;
  text-align: center;
  padding: 2rem;
  color: var(--text-muted);
}

.chat-welcome h5 {
  font-family: var(--font-heading);
  color: var(--text);
  font-size: 1.25rem;
}

.welcome-icon {
  font-size: 3rem;
  margin-bottom: 1rem;
}

.suggestion-prompts {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.5rem;
  margin-top: 1rem;
}

.suggestion-prompts .btn {
  border-color: var(--border);
  background-color: var(--bg-card);
  color: var(--text-muted);
  border-radius: var(--radius-xl);
  font-size: 0.8125rem;
  padding: 0.3rem 0.875rem;
  transition: all 0.15s;
}

.suggestion-prompts .btn:hover {
  border-color: var(--accent);
  color: var(--accent);
  background-color: var(--accent-light);
}

.message {
  display: flex;
  max-width: 80%;
}

.message-user {
  align-self: flex-end;
  flex-direction: row-reverse;
}

.message-agent {
  align-self: flex-start;
}

.message-bubble {
  background: var(--agent-bubble);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 0.75rem 1rem;
  max-width: 100%;
  word-break: break-word;
  color: var(--agent-bubble-text);
  font-size: 0.9375rem;
  line-height: 1.55;
  box-shadow: var(--shadow);
}

.message-user .message-bubble {
  background: var(--user-bubble);
  color: var(--user-bubble-text);
  border-color: transparent;
  border-bottom-right-radius: var(--radius-sm);
}

.message-agent .message-bubble {
  border-bottom-left-radius: var(--radius-sm);
}

.message-time {
  font-size: 0.7rem;
  opacity: 0.6;
  margin-top: 0.25rem;
  text-align: right;
  color: var(--text-light);
  font-family: var(--font-mono);
}

.message-user .message-time {
  color: oklch(85% 0.04 65);
}

.typing-indicator {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 0.75rem 1rem;
  min-width: 60px;
}

.typing-indicator span {
  width: 8px;
  height: 8px;
  background: var(--text-light);
  border-radius: 50%;
  animation: typing-bounce 1.2s infinite;
}

.typing-indicator span:nth-child(2) { animation-delay: 0.2s; }
.typing-indicator span:nth-child(3) { animation-delay: 0.4s; }

@keyframes typing-bounce {
  0%, 60%, 100% { transform: translateY(0); opacity: 0.4; }
  30% { transform: translateY(-6px); opacity: 1; }
}

.chat-input-area {
  padding: 1rem 1.25rem;
  border-top: 1px solid var(--border);
  flex-shrink: 0;
  background: var(--bg-panel);
}

.chat-input {
  resize: none;
  max-height: 120px;
  overflow-y: auto;
}

.connection-status .badge {
  font-size: 0.75rem;
}

/* ── Chat sidebar ─────────────────────────────────────────────────────────── */

.chat-sidebar {
  width: 270px;
  flex-shrink: 0;
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  background: var(--bg-panel);
  transition: width 0.2s ease;
  overflow: hidden;
}

.chat-sidebar.collapsed {
  width: 40px;
  min-width: 40px;
}

.chat-sidebar-toggle {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: none;
  border: none;
  cursor: pointer;
  color: var(--text-muted);
  flex-shrink: 0;
  transition: color 0.15s;
  padding: 0;
}

.chat-sidebar-toggle:hover { color: var(--text); }

.chat-sidebar-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 4px 0 16px;
  height: 52px;
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}

.chat-sidebar-title {
  font-family: var(--font-heading);
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text);
  white-space: nowrap;
  overflow: hidden;
}

.chat-sidebar-tabs {
  display: flex;
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
  background: var(--bg-panel);
}

.chat-sidebar-tab {
  flex: 1;
  padding: 10px 0;
  font-family: var(--font-body);
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--text-muted);
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  cursor: pointer;
  transition: color 0.15s, border-color 0.15s;
  white-space: nowrap;
}

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

.chat-sidebar-tab.active {
  color: var(--accent);
  border-bottom-color: var(--accent);
}

.chat-sidebar-body {
  flex: 1;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
}

.chat-sidebar-list {
  flex: 1;
  padding: 8px 0;
}

.sidebar-book-item {
  padding: 10px 16px;
  border-bottom: 1px solid oklch(85% 0.025 70 / 0.5);
  display: flex;
  align-items: flex-start;
  gap: 10px;
  transition: background-color 0.12s;
}

.sidebar-book-item:last-child { border-bottom: none; }

.sidebar-book-item:hover { background-color: var(--bg-alt); }

.sidebar-book-info { flex: 1; min-width: 0; }

.sidebar-book-title {
  font-family: var(--font-body);
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  line-height: 1.3;
}

.sidebar-book-author {
  font-size: 0.75rem;
  color: var(--text-muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.sidebar-book-note {
  font-size: 0.6875rem;
  color: var(--text-light);
  margin-top: 2px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.sidebar-book-rating {
  font-size: 0.6875rem;
  color: oklch(62% 0.14 75);
  margin-top: 2px;
}

.sidebar-book-remove {
  flex-shrink: 0;
  background: none;
  border: none;
  cursor: pointer;
  color: var(--text-light);
  padding: 2px 4px;
  font-size: 0.75rem;
  border-radius: var(--radius-sm);
  transition: color 0.15s, background-color 0.15s;
  line-height: 1;
  opacity: 0;
  transition: opacity 0.15s;
}

.sidebar-book-item:hover .sidebar-book-remove { opacity: 1; }
.sidebar-book-remove:hover { color: var(--danger); background-color: var(--danger-light); }

.sidebar-new-badge {
  display: inline-block;
  font-size: 0.625rem;
  font-weight: 700;
  padding: 1px 5px;
  border-radius: var(--radius-sm);
  background-color: var(--success-light);
  color: var(--success);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  vertical-align: middle;
  margin-left: 4px;
}

.sidebar-empty {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 2rem 1rem;
  text-align: center;
  color: var(--text-light);
  font-size: 0.8125rem;
  flex: 1;
  gap: 6px;
}

.sidebar-empty-icon {
  font-size: 1.75rem;
  opacity: 0.5;
  margin-bottom: 4px;
}

.sidebar-loading {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem;
  color: var(--text-muted);
}

/* Collapsed sidebar — show only the toggle */
.chat-sidebar.collapsed .chat-sidebar-header,
.chat-sidebar.collapsed .chat-sidebar-tabs,
.chat-sidebar.collapsed .chat-sidebar-body {
  display: none;
}

.chat-sidebar.collapsed .chat-sidebar-collapse-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 100%;
  width: 40px;
}

@media (max-width: 767.98px) {
  .chat-sidebar {
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    z-index: 50;
    box-shadow: var(--shadow-md);
  }

  .chat-sidebar.collapsed {
    width: 0;
    min-width: 0;
  }
}

/* ── Linked accounts ──────────────────────────────────────────────────────── */

.account-icon {
  font-size: 2rem;
  width: 3rem;
  text-align: center;
}

/* ── Loading / Error / Empty states ──────────────────────────────────────── */

.loading-container {
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 200px;
}

.error-state {
  text-align: center;
  padding: 2rem;
  color: var(--danger);
}

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

.empty-state-icon {
  font-size: 3rem;
  margin-bottom: 1rem;
  opacity: 0.5;
}

/* ── Blazor infrastructure ────────────────────────────────────────────────── */

#blazor-error-ui {
  color-scheme: light only;
  background: var(--danger-light);
  border-top: 1px solid oklch(52% 0.18 25 / 0.3);
  color: var(--danger);
  bottom: 0;
  box-sizing: border-box;
  display: none;
  left: 0;
  padding: 0.6rem 1.25rem 0.7rem 1.25rem;
  position: fixed;
  width: 100%;
  z-index: 1000;
  font-family: var(--font-body);
  font-size: 0.875rem;
}

#blazor-error-ui .dismiss {
  cursor: pointer;
  position: absolute;
  right: 0.75rem;
  top: 0.5rem;
}

.blazor-error-boundary {
  background: url(data:image/svg+xml;base64,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) no-repeat 1rem/1.8rem, var(--danger);
  padding: 1rem 1rem 1rem 3.7rem;
  color: white;
}

.blazor-error-boundary::after {
  content: "An error has occurred.";
}

.loading-progress {
  position: absolute;
  display: block;
  width: 8rem;
  height: 8rem;
  inset: 20vh 0 auto 0;
  margin: 0 auto;
}

.loading-progress circle {
  fill: none;
  stroke: var(--border);
  stroke-width: 0.6rem;
  transform-origin: 50% 50%;
  transform: rotate(-90deg);
}

.loading-progress circle:last-child {
  stroke: var(--accent);
  stroke-dasharray: calc(3.141 * var(--blazor-load-percentage, 0%) * 0.8), 500%;
  transition: stroke-dasharray 0.05s ease-in-out;
}

.loading-progress-text {
  position: absolute;
  text-align: center;
  font-weight: 600;
  font-family: var(--font-body);
  color: var(--text-muted);
  inset: calc(20vh + 3.25rem) 0 auto 0.2rem;
}

.loading-progress-text:after {
  content: var(--blazor-load-percentage-text, "Loading");
}

/* ── Validation ───────────────────────────────────────────────────────────── */

.valid.modified:not([type=checkbox]) {
  outline: 1px solid var(--success);
}

.invalid {
  outline: 1px solid var(--danger);
}

.validation-message {
  color: var(--danger);
  font-size: 0.8125rem;
  margin-top: 0.25rem;
}

/* ── Accessibility ────────────────────────────────────────────────────────── */

.btn:focus-visible,
.form-control:focus-visible,
.form-select:focus-visible,
.genre-btn:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.skip-to-main {
  position: absolute;
  top: -40px;
  left: 0;
  background: var(--accent);
  color: var(--accent-text);
  padding: 8px;
  text-decoration: none;
  z-index: 100;
}

.skip-to-main:focus {
  top: 0;
}

.sr-only, .visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}

h1:focus {
  outline: none;
}

/* ── Scrollbars ───────────────────────────────────────────────────────────── */

::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: oklch(70% 0.02 60 / 0.4); border-radius: 99px; }
::-webkit-scrollbar-thumb:hover { background: oklch(55% 0.03 60 / 0.6); }

/* ── Page transitions ─────────────────────────────────────────────────────── */

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

.content {
  padding-top: 1.1rem;
}

/* ── Responsive ───────────────────────────────────────────────────────────── */

@media (max-width: 767.98px) {
  .message { max-width: 95%; }
  .chat-layout { height: calc(100vh - 52px); }
  .auth-card { max-width: 100%; }
  .settings-page { padding: 0 0 2rem; }
  .onboarding-container { padding: 0.5rem 0 2rem; }
  .onboarding-step { padding: 1rem; }
  .chat-header { padding: 0.75rem 1rem; }
  .chat-messages { padding: 1rem; }
  .chat-input-area { padding: 0.75rem 1rem; }
  .genre-grid { gap: 0.375rem; }
  .genre-btn { font-size: 0.8125rem; padding: 0.2rem 0.6rem; }
}

@media (max-width: 575.98px) {
  .auth-container { padding: 1rem 0.5rem; }
  .message-bubble { padding: 0.625rem 0.875rem; }
  .chat-welcome { padding: 1rem; }
  .welcome-icon { font-size: 2.5rem; }
  .suggestion-prompts .btn { font-size: 0.8125rem; }
}

@media (max-width: 767.98px) {
  .btn, .genre-btn, .badge button {
    min-height: 44px;
    min-width: 44px;
  }
  .btn-sm { min-height: 38px; min-width: 38px; }
  .form-control, .form-select { min-height: 44px; }
}

@media (prefers-reduced-motion: reduce) {
  .typing-indicator span { animation: none; opacity: 1; }
  .btn, .genre-btn { transition: none; }
}

/* ── Alert improvements ───────────────────────────────────────────────────── */

@media (max-width: 575.98px) {
  .alert {
    font-size: 0.875rem;
    padding: 0.75rem;
  }
  .alert .btn-close { padding: 0.5rem; }
}