/* ==========================================================================
   PlumeStudio — CSS Design System
   Surcouche Bootstrap 5 avec support thème clair/sombre
   ========================================================================== */

/* --------------------------------------------------------------------------
   Local Fonts
   -------------------------------------------------------------------------- */
@font-face {
  font-family: 'Inter';
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url('../fonts/inter/inter-latin.woff2') format('woff2');
}

@font-face {
  font-family: 'Inter';
  font-style: normal;
  font-weight: 500;
  font-display: swap;
  src: url('../fonts/inter/inter-latin.woff2') format('woff2');
}

@font-face {
  font-family: 'Plus Jakarta Sans';
  font-style: normal;
  font-weight: 600;
  font-display: swap;
  src: url('../fonts/plus-jakarta-sans/plus-jakarta-sans-latin.woff2') format('woff2');
}

@font-face {
  font-family: 'Plus Jakarta Sans';
  font-style: normal;
  font-weight: 700;
  font-display: swap;
  src: url('../fonts/plus-jakarta-sans/plus-jakarta-sans-latin.woff2') format('woff2');
}

@font-face {
  font-family: 'JetBrains Mono';
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url('../fonts/jetbrains-mono/jetbrains-mono-latin.woff') format('woff');
}

/* ==========================================================================
   THEME VARIABLES
   ========================================================================== */

/* --------------------------------------------------------------------------
   Light Theme (default)
   -------------------------------------------------------------------------- */
[data-bs-theme="light"],
:root {
  /* Brand */
  --ps-primary: #4F46E5;
  --ps-primary-hover: #4338CA;
  --ps-primary-rgb: 79, 70, 229;
  --ps-accent: #06B6D4;
  --ps-accent-rgb: 6, 182, 212;

  /* Semantic */
  --ps-success: #10B981;
  --ps-warning: #F59E0B;
  --ps-danger: #EF4444;

  /* Surfaces */
  --ps-bg: #F8FAFC;
  --ps-surface: #FFFFFF;
  --ps-surface-hover: #F1F5F9;

  /* Text */
  --ps-text: #1E293B;
  --ps-text-secondary: #64748B;
  --ps-text-muted: #94A3B8;

  /* Borders */
  --ps-border: #E2E8F0;
  --ps-border-hover: #CBD5E1;

  /* Shadows */
  --ps-shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --ps-shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.07), 0 2px 4px -2px rgba(0, 0, 0, 0.05);
  --ps-shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.08), 0 4px 6px -4px rgba(0, 0, 0, 0.04);

  /* Focus ring */
  --ps-focus-ring: 0 0 0 3px rgba(79, 70, 229, 0.25);

  /* Bootstrap overrides */
  --bs-primary: #4F46E5;
  --bs-primary-rgb: 79, 70, 229;
  --bs-body-bg: #F8FAFC;
  --bs-body-color: #1E293B;
  --bs-secondary-color: #64748B;
  --bs-border-color: #E2E8F0;
  --bs-link-color: #4F46E5;
  --bs-link-hover-color: #4338CA;
}

/* --------------------------------------------------------------------------
   Dark Theme
   -------------------------------------------------------------------------- */
[data-bs-theme="dark"] {
  /* Surfaces */
  --ps-bg: #0F172A;
  --ps-surface: #1E293B;
  --ps-surface-hover: #334155;

  /* Text */
  --ps-text: #F1F5F9;
  --ps-text-secondary: #94A3B8;
  --ps-text-muted: #64748B;

  /* Borders */
  --ps-border: #334155;
  --ps-border-hover: #475569;

  /* Shadows — plus prononcées en sombre */
  --ps-shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.2);
  --ps-shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.3), 0 2px 4px -2px rgba(0, 0, 0, 0.2);
  --ps-shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.4), 0 4px 6px -4px rgba(0, 0, 0, 0.25);

  /* Focus ring */
  --ps-focus-ring: 0 0 0 3px rgba(79, 70, 229, 0.4);

  /* Bootstrap overrides */
  --bs-body-bg: #0F172A;
  --bs-body-color: #F1F5F9;
  --bs-secondary-color: #94A3B8;
  --bs-border-color: #334155;
}

/* ==========================================================================
   BASE & TYPOGRAPHY
   ========================================================================== */

body {
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  font-weight: 400;
  line-height: 1.6;
  background-color: var(--ps-bg);
  color: var(--ps-text);
  transition: background-color 0.2s ease, color 0.2s ease;
}

h1, h2, h3, h4, h5, h6,
.h1, .h2, .h3, .h4, .h5, .h6 {
  font-family: 'Plus Jakarta Sans', system-ui, sans-serif;
  color: var(--ps-text);
  line-height: 1.2;
}

h1, .h1 { font-weight: 700; font-size: 2rem; line-height: 1.2; }
h2, .h2 { font-weight: 700; font-size: 1.5rem; line-height: 1.25; }
h3, .h3 { font-weight: 600; font-size: 1.25rem; line-height: 1.3; }
h4, .h4 { font-weight: 600; font-size: 1.125rem; line-height: 1.35; }
h5, .h5 { font-weight: 600; font-size: 1rem; line-height: 1.4; }
h6, .h6 { font-weight: 600; font-size: 0.875rem; line-height: 1.4; }

code, kbd, pre, samp,
.font-monospace {
  font-family: 'JetBrains Mono', 'Fira Code', monospace;
}

a {
  color: var(--ps-primary);
  text-decoration: none;
  transition: color 0.15s ease;
}

a:hover {
  color: var(--ps-primary-hover);
}

/* ==========================================================================
   BOOTSTRAP COMPONENT OVERRIDES
   ========================================================================== */

/* --------------------------------------------------------------------------
   Buttons
   -------------------------------------------------------------------------- */
.btn {
  border-radius: 6px;
  font-weight: 500;
  font-family: 'Inter', system-ui, sans-serif;
  transition: all 0.15s ease;
}

.btn:focus-visible {
  box-shadow: var(--ps-focus-ring);
}

.btn-primary {
  --bs-btn-bg: #4F46E5;
  --bs-btn-border-color: #4F46E5;
  --bs-btn-hover-bg: #4338CA;
  --bs-btn-hover-border-color: #4338CA;
  --bs-btn-active-bg: #3730A3;
  --bs-btn-active-border-color: #3730A3;
  --bs-btn-disabled-bg: #4F46E5;
  --bs-btn-disabled-border-color: #4F46E5;
}

.btn-outline-primary {
  --bs-btn-color: #4F46E5;
  --bs-btn-border-color: #4F46E5;
  --bs-btn-hover-bg: #4F46E5;
  --bs-btn-hover-border-color: #4F46E5;
  --bs-btn-active-bg: #4338CA;
  --bs-btn-active-border-color: #4338CA;
}

.btn-accent {
  background-color: var(--ps-accent);
  border-color: var(--ps-accent);
  color: #fff;
}

.btn-accent:hover {
  background-color: #0891B2;
  border-color: #0891B2;
  color: #fff;
}

/* --------------------------------------------------------------------------
   Cards
   -------------------------------------------------------------------------- */
.card {
  border-radius: 8px;
  border-color: var(--ps-border);
  background-color: var(--ps-surface);
  box-shadow: var(--ps-shadow-sm);
  transition: background-color 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
}

.card:hover {
  box-shadow: var(--ps-shadow-md);
}

.card-header {
  background-color: transparent;
  border-bottom-color: var(--ps-border);
  font-family: 'Plus Jakarta Sans', system-ui, sans-serif;
  font-weight: 600;
}

.card-footer {
  background-color: transparent;
  border-top-color: var(--ps-border);
}

/* --------------------------------------------------------------------------
   Navbar
   -------------------------------------------------------------------------- */
.navbar {
  background-color: var(--ps-surface) !important;
  border-bottom: 1px solid var(--ps-border);
  box-shadow: var(--ps-shadow-sm);
  transition: background-color 0.2s ease, border-color 0.2s ease;
}

.navbar-brand {
  font-family: 'Plus Jakarta Sans', system-ui, sans-serif;
  font-weight: 700;
  color: var(--ps-primary) !important;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.navbar-brand img {
  height: 32px;
  width: auto;
}

/* --------------------------------------------------------------------------
   Forms
   -------------------------------------------------------------------------- */
.form-control,
.form-select {
  border-radius: 4px;
  border-color: var(--ps-border);
  background-color: var(--ps-surface);
  color: var(--ps-text);
  transition: border-color 0.15s ease, box-shadow 0.15s ease, background-color 0.2s ease;
}

.form-control:focus,
.form-select:focus {
  border-color: var(--ps-primary);
  box-shadow: var(--ps-focus-ring);
}

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

.form-label {
  font-weight: 500;
  color: var(--ps-text);
  margin-bottom: 0.375rem;
}

/* --------------------------------------------------------------------------
   Modals
   -------------------------------------------------------------------------- */
.modal-content {
  border-radius: 8px;
  border-color: var(--ps-border);
  background-color: var(--ps-surface);
  box-shadow: var(--ps-shadow-lg);
}

.modal-header {
  border-bottom-color: var(--ps-border);
}

.modal-footer {
  border-top-color: var(--ps-border);
}

.modal-backdrop {
  --bs-backdrop-opacity: 0.5;
}

/* --------------------------------------------------------------------------
   Dropdowns
   -------------------------------------------------------------------------- */
.dropdown-menu {
  border-radius: 8px;
  border-color: var(--ps-border);
  background-color: var(--ps-surface);
  box-shadow: var(--ps-shadow-md);
}

.dropdown-item:hover,
.dropdown-item:focus {
  background-color: var(--ps-surface-hover);
}

/* --------------------------------------------------------------------------
   Badges
   -------------------------------------------------------------------------- */
.badge {
  font-weight: 500;
  font-family: 'Inter', system-ui, sans-serif;
}

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

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

/* --------------------------------------------------------------------------
   Alerts
   -------------------------------------------------------------------------- */
.alert {
  border-radius: 8px;
}

/* --------------------------------------------------------------------------
   Tables
   -------------------------------------------------------------------------- */
.table {
  --bs-table-bg: transparent;
  color: var(--ps-text);
}

.table > :not(caption) > * > * {
  border-bottom-color: var(--ps-border);
}

/* ==========================================================================
   PLUMESTUDIO SPECIFIC COMPONENTS
   ========================================================================== */

/* --------------------------------------------------------------------------
   Sidebar
   -------------------------------------------------------------------------- */
.ps-sidebar {
  width: 280px;
  background-color: var(--ps-surface);
  border-right: 1px solid var(--ps-border);
  height: 100vh;
  overflow-y: auto;
  transition: background-color 0.2s ease, border-color 0.2s ease;
}

.ps-sidebar-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.5rem 1rem;
  color: var(--ps-text-secondary);
  border-radius: 6px;
  margin: 2px 0.5rem;
  transition: all 0.15s ease;
  cursor: pointer;
  text-decoration: none;
}

.ps-sidebar-item:hover {
  background-color: var(--ps-surface-hover);
  color: var(--ps-text);
}

.ps-sidebar-item.active {
  background-color: rgba(var(--ps-primary-rgb), 0.1);
  color: var(--ps-primary);
  font-weight: 500;
}

.ps-sidebar-heading {
  font-family: 'Plus Jakarta Sans', system-ui, sans-serif;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--ps-text-muted);
  padding: 1rem 1rem 0.375rem;
}

/* --------------------------------------------------------------------------
   Chapter Editor
   -------------------------------------------------------------------------- */
.ps-editor {
  background-color: var(--ps-surface);
  border: 1px solid var(--ps-border);
  border-radius: 8px;
  padding: 2rem;
  min-height: 400px;
  font-size: 1rem;
  line-height: 1.8;
  color: var(--ps-text);
  transition: background-color 0.2s ease, border-color 0.2s ease;
}

.ps-editor:focus {
  outline: none;
  border-color: var(--ps-primary);
  box-shadow: var(--ps-focus-ring);
}

.ps-editor-toolbar {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  padding: 0.5rem;
  border-bottom: 1px solid var(--ps-border);
  background-color: var(--ps-surface);
  border-radius: 8px 8px 0 0;
}

.ps-editor-toolbar .btn {
  padding: 0.25rem 0.5rem;
  color: var(--ps-text-secondary);
}

.ps-editor-toolbar .btn:hover {
  color: var(--ps-text);
  background-color: var(--ps-surface-hover);
}

/* --------------------------------------------------------------------------
   Prompt Zone (AI interaction)
   -------------------------------------------------------------------------- */
.ps-prompt {
  background-color: var(--ps-surface);
  border: 1px solid var(--ps-border);
  border-radius: 8px;
  padding: 1rem;
  transition: background-color 0.2s ease, border-color 0.2s ease;
}

.ps-prompt-input {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.875rem;
  background-color: var(--ps-bg);
  border: 1px solid var(--ps-border);
  border-radius: 6px;
  padding: 0.75rem 1rem;
  color: var(--ps-text);
  width: 100%;
  resize: vertical;
  min-height: 80px;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.ps-prompt-input:focus {
  outline: none;
  border-color: var(--ps-primary);
  box-shadow: var(--ps-focus-ring);
}

.ps-prompt-input::placeholder {
  color: var(--ps-text-muted);
}

.ps-prompt-actions {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 0.75rem;
}

.ps-prompt-response {
  margin-top: 1rem;
  padding: 1rem;
  background-color: var(--ps-bg);
  border-radius: 6px;
  border-left: 3px solid var(--ps-primary);
  font-size: 0.9375rem;
  line-height: 1.7;
}

/* --------------------------------------------------------------------------
   Theme Toggle Button
   -------------------------------------------------------------------------- */
.ps-theme-toggle {
  background: none;
  border: 1px solid var(--ps-border);
  border-radius: 6px;
  padding: 0.375rem 0.5rem;
  color: var(--ps-text-secondary);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.15s ease;
}

.ps-theme-toggle:hover {
  background-color: var(--ps-surface-hover);
  color: var(--ps-text);
  border-color: var(--ps-border-hover);
}

/* Icon swap */
[data-bs-theme="light"] .ps-theme-toggle .bi-sun-fill { display: none; }
[data-bs-theme="dark"] .ps-theme-toggle .bi-moon-fill { display: none; }

/* ==========================================================================
   UTILITIES
   ========================================================================== */

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

.bg-surface { background-color: var(--ps-surface) !important; }
.bg-surface-hover { background-color: var(--ps-surface-hover) !important; }

.border-subtle { border-color: var(--ps-border) !important; }

.shadow-ps-sm { box-shadow: var(--ps-shadow-sm) !important; }
.shadow-ps-md { box-shadow: var(--ps-shadow-md) !important; }
.shadow-ps-lg { box-shadow: var(--ps-shadow-lg) !important; }

.font-heading {
  font-family: 'Plus Jakarta Sans', system-ui, sans-serif;
}

.font-mono {
  font-family: 'JetBrains Mono', monospace;
}

/* ==========================================================================
   TRANSITIONS — global theme switch
   ========================================================================== */

.navbar,
.card,
.modal-content,
.dropdown-menu,
.form-control,
.form-select,
.ps-sidebar,
.ps-editor,
.ps-prompt,
.ps-prompt-input {
  transition: background-color 0.2s ease, border-color 0.2s ease, color 0.2s ease, box-shadow 0.2s ease;
}

/* ==========================================================================
   SCROLLBAR STYLING
   ========================================================================== */

::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: var(--ps-bg);
}

::-webkit-scrollbar-thumb {
  background: var(--ps-border-hover);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--ps-text-muted);
}