/* ============================================================
   Project Origin — Design System
   Ordre : tokens → reset → layout → components → utilities
   ============================================================ */

/* ============================================================
   1. TOKENS (:root)
   ============================================================ */
:root {
  --color-primary:       #7B2D2A;
  --color-primary-hover: #5E211F;
  --color-text:          #4C4030;
  --color-text-muted:    #554A35;
  --color-bg:            #F2ECDE;
  --color-surface:       #FBF8F1;
  --color-border:        #E3DAC6;
  --color-danger:        #7E200D;
  --color-success:       #2A4D2C;
  --color-warning:       #623F0A;
  --color-info:          #294957;

  --space-1: 4px;  --space-2: 8px;  --space-3: 12px; --space-4: 16px;
  --space-5: 24px; --space-6: 32px; --space-7: 48px; --space-8: 64px;
  --radius-sm: 4px; --radius-md: 8px; --radius-lg: 16px;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.08);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.12);

  --font-sans:  'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-serif: 'Spectral', Georgia, 'Times New Roman', serif;
  --font-mono:  'JetBrains Mono', 'Fira Code', 'Cascadia Code', ui-monospace, monospace;

  --text-xs: 0.75rem; --text-sm: 0.875rem; --text-base: 1rem;
  --text-lg: 1.125rem; --text-xl: 1.25rem; --text-2xl: 1.5rem;
}

/* ============================================================
   2. DARK MODE — token overrides only
   ============================================================ */
@media (prefers-color-scheme: dark) {
  :root {
    --color-primary:       #9E3B33;
    --color-primary-hover: #B3493F;
    --color-text:          #ECE3CF;
    --color-text-muted:    #BBB093;
    --color-bg:            #221C12;
    --color-surface:       #2C2417;
    --color-border:        #3C3322;
    --color-danger:        #E8A99D;
    --color-success:       #A8C6A8;
    --color-warning:       #E1BA8A;
    --color-info:          #A6BFCF;
  }
}

/* ============================================================
   3. RESET
   ============================================================ */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-sans);
  font-size: var(--text-base);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.6;
  min-height: 100vh;
}

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

a:hover {
  text-decoration: underline;
}

ul, ol {
  list-style: none;
}

img, svg {
  display: block;
  max-width: 100%;
}

button, input, select, textarea {
  font-family: inherit;
  font-size: inherit;
}

/* ============================================================
   4. LAYOUT
   ============================================================ */

/* --- Auth layout (centered single card) --- */
body.auth {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  padding: var(--space-5);
}

body.auth > .card {
  width: 100%;
  max-width: 420px;
}

/* --- App layout (sidebar + topbar + content) --- */
body.app {
  display: flex;
  min-height: 100vh;
}

.sidebar {
  position: fixed;
  top: 0;
  left: 0;
  width: 240px;
  height: 100vh;
  background: var(--color-surface);
  border-right: 1px solid var(--color-border);
  display: flex;
  flex-direction: column;
  z-index: 100;
  overflow-y: auto;
}

.sidebar-brand {
  padding: var(--space-5) var(--space-4);
  font-weight: 700;
  font-size: var(--text-lg);
  color: var(--color-text);
  border-bottom: 2px solid var(--color-primary);
  flex-shrink: 0;
}

.app-main {
  margin-left: 240px;
  flex: 1;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 50;
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  padding: 0 var(--space-5);
  height: 56px;
  display: flex;
  align-items: center;
  gap: var(--space-3);
  flex-shrink: 0;
}

.topbar-title {
  font-weight: 600;
  font-size: var(--text-base);
  color: var(--color-text);
}

.content {
  flex: 1;
  padding: var(--space-6) var(--space-5);
  max-width: 960px;
  width: 100%;
}

/* --- Nav inside sidebar --- */
.nav {
  display: flex;
  flex-direction: column;
  padding: var(--space-4) 0;
  gap: var(--space-1);
  flex: 1;
}

.nav-link {
  display: block;
  padding: var(--space-2) var(--space-4);
  color: var(--color-text);
  font-size: var(--text-sm);
  border-radius: var(--radius-sm);
  margin: 0 var(--space-2);
  transition: background 0.15s;
}

.nav-link:hover {
  background: var(--color-bg);
  text-decoration: none;
}

.nav-link.active {
  background: var(--color-primary);
  color: #fff;
}

.nav-logout {
  margin-top: auto;
  padding: var(--space-3) var(--space-4);
  border-top: 1px solid var(--color-border);
}

/* Responsive: sidebar collapses to drawer under 768px */
@media (max-width: 767px) {
  .sidebar {
    transform: translateX(-100%);
    transition: transform 0.25s ease;
  }

  .sidebar.open {
    transform: translateX(0);
  }

  .app-main {
    margin-left: 0;
  }

  .topbar {
    padding: 0 var(--space-4);
  }

  .content {
    padding: var(--space-4);
  }
}

/* ============================================================
   5. COMPONENTS
   ============================================================ */

/* --- .card --- */
.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  padding: var(--space-6);
}

.card-header {
  margin-bottom: var(--space-5);
  padding-bottom: var(--space-4);
  border-bottom: 2px solid var(--color-primary);
}

.card-title {
  font-size: var(--text-xl);
  font-weight: 600;
  color: var(--color-text);
}

/* --- .form-field (label + input + error block) --- */
.form-field {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  margin-bottom: var(--space-4);
}

.form-field label {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text);
}

.form-field .field-error {
  font-size: var(--text-xs);
  color: var(--color-danger);
}

/* --- .input (input / textarea / select unified) --- */
.input {
  display: block;
  width: 100%;
  padding: var(--space-2) var(--space-3);
  background: var(--color-surface);
  color: var(--color-text);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-size: var(--text-sm);
  line-height: 1.5;
  transition: border-color 0.15s, box-shadow 0.15s;
  appearance: none;
}

.input:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

textarea.input {
  resize: vertical;
  min-height: 80px;
}

/* --- BUTTONS — exactly 4 variants + .btn-sm --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  font-size: var(--text-sm);
  font-weight: 500;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  cursor: pointer;
  text-decoration: none;
  transition: background 0.15s, color 0.15s, border-color 0.15s, box-shadow 0.15s;
  white-space: nowrap;
  user-select: none;
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  pointer-events: none;
}

/* Variant 1: primary */
.btn-primary {
  background: var(--color-primary);
  color: #ffffff;
  border-color: var(--color-primary);
}

.btn-primary:hover {
  background: var(--color-primary-hover);
  border-color: var(--color-primary-hover);
  text-decoration: none;
}

/* Variant 2: secondary */
.btn-secondary {
  background: var(--color-surface);
  color: var(--color-text);
  border-color: var(--color-border);
}

.btn-secondary:hover {
  background: var(--color-bg);
  text-decoration: none;
}

/* Variant 3: danger — outline (cf. charte, déplacée après components) */

/* Variant 4: ghost */
.btn-ghost {
  background: transparent;
  color: var(--color-text-muted);
  border-color: transparent;
}

.btn-ghost:hover {
  background: var(--color-bg);
  color: var(--color-text);
  text-decoration: none;
}

/* Size modifier */
.btn-sm {
  padding: var(--space-1) var(--space-3);
  font-size: var(--text-xs);
}

/* --- .table --- */
.table {
  width: 100%;
  border-collapse: collapse;
  font-size: var(--text-sm);
}

.table th,
.table td {
  padding: var(--space-3) var(--space-4);
  text-align: left;
  border-bottom: 1px solid var(--color-border);
}

.table th {
  font-weight: 600;
  color: var(--color-text);
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  background: var(--color-bg);
  border-bottom: 2px solid var(--color-primary);
}

.table tbody tr:hover {
  background: var(--color-bg);
}

/* --- .badge (4 variants aligned to 4 alert levels) --- */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 2px var(--space-2);
  font-size: var(--text-xs);
  font-weight: 500;
  border-radius: var(--radius-sm);
  white-space: nowrap;
}

.badge-success {
  background: rgba(22, 163, 74, 0.12);
  color: var(--color-success);
}

.badge-info {
  background: rgba(2, 132, 199, 0.12);
  color: var(--color-info);
}

.badge-warning {
  background: rgba(217, 119, 6, 0.12);
  color: var(--color-warning);
}

.badge-error {
  background: rgba(220, 38, 38, 0.12);
  color: var(--color-danger);
}

/* --- .alert (4 levels — used by flash.php) --- */
.alert {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-sm);
  font-size: var(--text-sm);
  margin-bottom: var(--space-4);
  border-left: 4px solid transparent;
}

.alert-success {
  background: rgba(22, 163, 74, 0.1);
  border-left-color: var(--color-success);
  color: var(--color-success);
}

.alert-info {
  background: rgba(2, 132, 199, 0.1);
  border-left-color: var(--color-info);
  color: var(--color-info);
}

.alert-warning {
  background: rgba(217, 119, 6, 0.1);
  border-left-color: var(--color-warning);
  color: var(--color-warning);
}

.alert-error {
  background: rgba(220, 38, 38, 0.1);
  border-left-color: var(--color-danger);
  color: var(--color-danger);
}

/* --- .modal — appliqué à <dialog> natif HTML5 (focus trap, Escape gérés par
   le navigateur ; backdrop via ::backdrop). Centrage EXPLICITE via transform :
   les UA stylesheets pour dialog:modal divergent entre navigateurs (notamment
   sur l'interaction width:100%/margin:auto/inset). transform translate(-50%) est
   bulletproof : ancré sur le box lui-même, indépendant du UA. --- */
.modal {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  margin: 0;
  width: min(500px, calc(100% - 2 * var(--space-5)));
  max-height: calc(100vh - 2 * var(--space-5));
  overflow: auto;
  padding: var(--space-6);
  background: var(--color-surface);
  color: var(--color-text);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
}
.modal::backdrop {
  background: rgba(0, 0, 0, 0.5);
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-4);
}

.modal-title {
  font-size: var(--text-lg);
  font-weight: 600;
}

.modal-footer {
  display: flex;
  gap: var(--space-3);
  justify-content: flex-end;
  margin-top: var(--space-5);
  padding-top: var(--space-4);
  border-top: 1px solid var(--color-border);
}

/* --- .empty-state --- */
.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--space-8) var(--space-5);
  text-align: center;
  color: var(--color-text-muted);
  gap: var(--space-3);
}

.empty-state-title {
  font-size: var(--text-lg);
  font-weight: 600;
  color: var(--color-text);
}

.empty-state-body {
  font-size: var(--text-sm);
  max-width: 360px;
}

/* --- .timer-panel : bandeau persistant sous topbar quand un timer est actif ---
   Sticky pour rester visible au scroll. Hidden par défaut, JS unhide via
   data-timer-panel. Tous les éléments enfants sont peuplés par app.js. */
.timer-panel {
  position: sticky;
  top: 56px; /* sous topbar (height fixe 56px) */
  z-index: 40;
  background: var(--color-surface);
  border-bottom: 2px solid var(--color-primary);
  padding: var(--space-3) var(--space-5);
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-size: var(--text-sm);
  flex-shrink: 0;
}
.timer-panel-project { font-weight: 600; }
.timer-elapsed {
  font-size: var(--text-lg);
  margin-left: auto;
  font-variant-numeric: tabular-nums;
}
/* Boutons icôniques ronds du panneau timer (pattern TMetric). Unicode ▶ ⏸ ⏹ */
.timer-icon-btn {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  color: var(--color-text);
  font-size: 16px;
  line-height: 1;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: background 0.15s, border-color 0.15s;
  padding: 0;
}
.timer-icon-btn:hover {
  background: var(--color-bg);
  border-color: var(--color-primary);
}
.timer-icon-btn.timer-icon-stop {
  color: var(--color-danger);
  border-color: var(--color-danger);
}
.timer-icon-btn.timer-icon-stop:hover {
  background: var(--color-danger);
  color: #FFFFFF;
}
/* Variante play : accent oxblood plein (action principale, mise en avant). */
.timer-icon-btn.timer-icon-play {
  background: var(--color-primary);
  color: #FFFFFF;
  border-color: var(--color-primary);
}
.timer-icon-btn.timer-icon-play:hover {
  background: var(--color-primary-hover);
  border-color: var(--color-primary-hover);
}

/* Modes du panneau (idle vs active). Tous deux flex pour aligner leurs enfants
   horizontalement comme l'était l'ancien panneau "active-only". */
.timer-idle, .timer-active {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  width: 100%;
}
/* Mode idle : select borné (pas 100%), input description prend le reste. */
.timer-idle-select { max-width: 240px; }
.timer-idle-description { flex: 1; }

/* L'attribut HTML5 `hidden` doit cacher l'élément, mais les classes ci-dessous
   posent un `display: flex|inline-flex` qui surclasse la règle UA `[hidden]{display:none}`
   (même spécificité 0,0,1,0 ; mon stylesheet est chargé après → il gagne). Ces sélecteurs
   explicites (spécificité 0,0,2,0) restaurent le comportement attendu de `hidden`. */
.btn[hidden],
.timer-panel[hidden],
.timer-icon-btn[hidden],
.timer-idle[hidden],
.timer-active[hidden],
.form-field[hidden] { display: none; }

/* --- .toast : notification transitoire (3.5s) côté client pour les erreurs/succès JS.
   Fixed bottom-right. data-type='error|success' déclenche la couleur d'accent. */
.toast {
  position: fixed;
  bottom: var(--space-5);
  right: var(--space-5);
  padding: var(--space-3) var(--space-4);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-left: 4px solid var(--color-primary);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-md);
  z-index: 300;
  max-width: 420px;
  font-size: var(--text-sm);
}
.toast--error   { border-left-color: var(--color-danger); }
.toast--success { border-left-color: var(--color-success); }

/* ============================================================
   5b. CHARTE — overrides de composants
   (placés après les composants et AVANT les utilities, cf. §4 ;
    les réglures .sidebar-brand/.card-header/.table th sont
    éditées en place plus haut → pas de doublon ici)
   ============================================================ */

/* ===== Charte : titres serif ===== */
h1, h2, .card-title, .topbar-title, .sidebar-brand {
  font-family: var(--font-serif);
  font-weight: 600;
  letter-spacing: 0;
}
/* ===== Charte : Danger = outline (source unique) ===== */
.btn-danger {
  background: transparent;
  color: var(--color-danger);
  border-color: var(--color-danger);
}
.btn-danger:hover {
  background: var(--color-danger);
  color: #FFFFFF;
  border-color: var(--color-danger);
}
/* ===== Charte : focus dé-indigoté ===== */
.input:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(123, 45, 42, 0.20);
}
/* ===== Charte : self-host fonts (woff2 = asset à fournir, cf README) ===== */
@font-face { font-family:'Inter'; src:url('/assets/fonts/Inter-Regular.woff2') format('woff2'); font-weight:400; font-display:swap; }
@font-face { font-family:'Inter'; src:url('/assets/fonts/Inter-Medium.woff2') format('woff2'); font-weight:500; font-display:swap; }
@font-face { font-family:'Inter'; src:url('/assets/fonts/Inter-SemiBold.woff2') format('woff2'); font-weight:600; font-display:swap; }
@font-face { font-family:'Spectral'; src:url('/assets/fonts/Spectral-SemiBold.woff2') format('woff2'); font-weight:600; font-display:swap; }
@font-face { font-family:'JetBrains Mono'; src:url('/assets/fonts/JetBrainsMono-Regular.woff2') format('woff2'); font-weight:400; font-display:swap; }
@font-face { font-family:'JetBrains Mono'; src:url('/assets/fonts/JetBrainsMono-Medium.woff2') format('woff2'); font-weight:500; font-display:swap; }
/* 2e bloc dark VOLONTAIRE : overrides de composants — doivent suivre les définitions de composants (spécificité égale → l'ordre source décide). Ne PAS fusionner avec le bloc dark de tokens en tête. */
@media (prefers-color-scheme: dark) {
  a                 { color: #EA9E92; }
  .btn-primary      { color: #FBF2EC; }
  .btn-danger       { background: transparent; color: var(--color-danger); border-color: var(--color-danger); }
  .btn-danger:hover { background: var(--color-danger); color: #221C12; border-color: var(--color-danger); }
  .nav-link.active  { color: #FBF2EC; }
}

/* ============================================================
   6. UTILITIES (very limited)
   ============================================================ */
.text-muted   { color: var(--color-text-muted); }
.text-sm      { font-size: var(--text-sm); }
.text-xs      { font-size: var(--text-xs); }
.font-mono    { font-family: var(--font-mono); }
.font-semibold{ font-weight: 600; }
.mt-4         { margin-top: var(--space-4); }
.mt-5         { margin-top: var(--space-5); }
.mb-4         { margin-bottom: var(--space-4); }
.flex         { display: flex; }
.items-center { align-items: center; }
.gap-3        { gap: var(--space-3); }
.w-full       { width: 100%; }
.sr-only      {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
  border: 0;
}