/* ═══════════════════════════════════════════════════
   FRISE CHRONO PRO — Design System
   Palette : bleu ardoise + orange cuivre
═══════════════════════════════════════════════════ */

:root {
  --bg-0:       #1a1e24;
  --bg-1:       #22272f;
  --bg-2:       #2a303a;
  --bg-3:       #323842;
  --bg-4:       #3c424e;

  --text-0:     #f0f2f5;
  --text-1:     #c8cdd6;
  --text-2:     #8a919e;
  --text-3:     #5a6070;

  --accent:     #4fa3e0;
  --accent-dark:#2d7ab5;
  --accent-light:#7dc4f5;
  --accent-2:   #e07a30;
  --accent-2-dk:#b85c1a;

  --success:    #4caf82;
  --danger:     #e05858;

  --border:     rgba(255,255,255,0.08);
  --border-mid: rgba(255,255,255,0.14);

  --radius-sm:  4px;
  --radius-md:  8px;
  --radius-lg:  12px;

  --panel-w:    260px;
  --topbar-h:   48px;

  /* Timeline specific */
  --axis-h:      48px;
  --tick-color:  rgba(255,255,255,0.18);
  --axis-bg:     #1e2330;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
  font-size: 13px;
  background: var(--bg-0);
  color: var(--text-1);
  height: 100vh;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

/* ── TOPBAR ──────────────────────────────────────── */
.topbar {
  height: var(--topbar-h);
  background: var(--bg-1);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  padding: 0 12px;
  gap: 8px;
  flex-shrink: 0;
  z-index: 100;
}

.topbar-brand {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-right: 8px;
}

.brand-name {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-0);
  letter-spacing: -0.3px;
}

.topbar-actions {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-left: auto;
}

.separator {
  width: 1px;
  height: 20px;
  background: var(--border-mid);
  margin: 0 4px;
}

/* ── BUTTONS ─────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  border-radius: var(--radius-md);
  border: none;
  font-size: 12px;
  font-weight: 500;
  cursor: pointer;
  transition: background 0.12s, color 0.12s;
  white-space: nowrap;
}

.btn-primary {
  background: var(--accent-dark);
  color: var(--text-0);
}
.btn-primary:hover { background: var(--accent); }

.btn-accent {
  background: var(--accent-2-dk);
  color: var(--text-0);
}
.btn-accent:hover { background: var(--accent-2); }

.btn-ghost {
  background: transparent;
  color: var(--text-1);
  border: 1px solid var(--border);
}
.btn-ghost:hover { background: var(--bg-3); color: var(--text-0); }

.btn-icon { padding: 6px; min-width: 30px; justify-content: center; }
.btn-full { width: 100%; justify-content: center; margin-top: 8px; }
.btn-sm { padding: 4px 8px; font-size: 12px; }

.btn-row { display: flex; gap: 8px; margin-top: 8px; }
.btn-row .btn { flex: 1; justify-content: center; }

/* ── DROPDOWN ────────────────────────────────────── */
.dropdown { position: relative; }
.dropdown-menu {
  position: absolute;
  right: 0;
  top: calc(100% + 4px);
  background: var(--bg-2);
  border: 1px solid var(--border-mid);
  border-radius: var(--radius-md);
  min-width: 200px;
  box-shadow: 0 8px 24px rgba(0,0,0,0.4);
  z-index: 500;
  display: none;
  overflow: hidden;
}
.dropdown-menu.open { display: block; }
.dropdown-item {
  display: block;
  width: 100%;
  padding: 9px 14px;
  background: none;
  border: none;
  color: var(--text-1);
  text-align: left;
  cursor: pointer;
  font-size: 12px;
  transition: background 0.1s;
}
.dropdown-item:hover { background: var(--bg-3); color: var(--text-0); }

/* ── APP LAYOUT ──────────────────────────────────── */
.app-layout {
  display: flex;
  flex: 1;
  overflow: hidden;
}

/* ── PANELS ──────────────────────────────────────── */
.panel-left, .panel-right {
  width: var(--panel-w);
  background: var(--bg-1);
  border-right: 1px solid var(--border);
  overflow-y: auto;
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  gap: 0;
  transition: width 0.22s ease;
  overflow: hidden;
}

.panel-right {
  border-right: none;
  border-left: 1px solid var(--border);
}

/* Panneaux masqués (vue large) */
.panel-left.panel-hidden,
.panel-right.panel-hidden {
  width: 0 !important;
  min-width: 0;
  border: none !important;
}

.panel-section {
  padding: 14px;
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}

/* Section accordion — corps masquable */
.section-body {
  /* wrapper for collapsible content */
}
.panel-section.section-collapsed .section-body {
  display: none;
}
.panel-section.section-collapsed .panel-title {
  margin-bottom: 0;
}

.panel-title {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-2);
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 6px;
}

/* Bouton accordéon des sections */
.section-toggle {
  margin-left: auto;
  background: none;
  border: none;
  color: var(--text-2);
  cursor: pointer;
  padding: 1px 4px;
  font-size: 10px;
  line-height: 1;
  border-radius: 3px;
  transition: transform 0.18s, background 0.15s;
  flex-shrink: 0;
}
.section-toggle:hover { background: var(--bg-3); }
.panel-section.section-collapsed .section-toggle {
  transform: rotate(-90deg);
}

/* ── FORM FIELDS ─────────────────────────────────── */
.field-label {
  display: block;
  font-size: 11px;
  color: var(--text-2);
  margin-bottom: 4px;
  margin-top: 10px;
}
.field-label:first-of-type { margin-top: 0; }

.hint {
  color: var(--text-3);
  font-size: 10px;
  display: block;
}

.field-input, .field-select, .field-textarea {
  width: 100%;
  background: var(--bg-3);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-0);
  padding: 6px 8px;
  font-size: 12px;
  outline: none;
  transition: border-color 0.12s;
  font-family: inherit;
}
.field-input:focus, .field-select:focus, .field-textarea:focus {
  border-color: var(--accent);
}
.field-select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath d='M3 4.5l3 3 3-3' stroke='%238a919e' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 8px center;
  padding-right: 26px;
}
.field-textarea { resize: vertical; min-height: 60px; }

.field-row {
  display: flex;
  gap: 8px;
}
.field-row > div { flex: 1; }

/* ── TYPE SELECTOR ───────────────────────────────── */
.type-selector {
  display: flex;
  gap: 6px;
  margin-bottom: 12px;
}
.type-btn {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  padding: 10px 6px;
  background: var(--bg-3);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  color: var(--text-2);
  cursor: pointer;
  font-size: 11px;
  transition: all 0.12s;
}
.type-btn:hover { border-color: var(--accent); color: var(--text-1); }
.type-btn.active {
  background: rgba(79,163,224,0.15);
  border-color: var(--accent);
  color: var(--accent-light);
}

/* ── COLORS ──────────────────────────────────────── */
.color-row {
  display: flex;
  gap: 6px;
  align-items: center;
  flex-wrap: wrap;
}
.color-swatch {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  cursor: pointer;
  border: 2px solid transparent;
  transition: border-color 0.1s, transform 0.1s;
}
.color-swatch:hover { transform: scale(1.15); }
.color-swatch.active { border-color: var(--text-0); }
.color-custom {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  border: 2px solid var(--border-mid);
  padding: 0;
  cursor: pointer;
  background: none;
  overflow: hidden;
}

/* ── CANVAS AREA ─────────────────────────────────── */
.canvas-area {
  flex: 1;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  background: var(--bg-0);
}

.canvas-toolbar {
  height: 36px;
  background: var(--bg-1);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  padding: 0 8px;
  gap: 10px;
  flex-shrink: 0;
}

/* Boutons de masquage des panneaux (◀ ▶) */
.panel-toggle-btn {
  font-size: 10px;
  padding: 3px 7px;
  opacity: 0.6;
  flex-shrink: 0;
}
.panel-toggle-btn:hover { opacity: 1; }
/* Pousse le bouton droit vers la droite */
.canvas-toolbar .view-options {
  margin-left: auto;
}
.panel-left.panel-hidden ~ .canvas-area #btn-toggle-left,
.panel-right.panel-hidden ~ .canvas-area #btn-toggle-right { opacity: 1; }

.zoom-controls {
  display: flex;
  align-items: center;
  gap: 4px;
}
.zoom-label { font-size: 12px; color: var(--text-2); min-width: 38px; text-align: center; }

.view-options {
  display: flex;
  gap: 12px;
  margin-left: auto;
}
.toggle-label {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  color: var(--text-2);
  cursor: pointer;
  user-select: none;
}
.toggle-label input { cursor: pointer; accent-color: var(--accent); }

.canvas-scroll-container {
  flex: 1;
  overflow: auto;
  position: relative;
  background:
    radial-gradient(circle at 50% 50%, rgba(79,163,224,0.03) 0%, transparent 70%),
    var(--bg-0);
}

.canvas-wrapper {
  display: inline-block;
  min-width: 100%;
  min-height: 100%;
  padding: 20px;
}

#timeline-svg {
  display: block;
  min-width: 900px;
}

/* ── ELEMENT LIST ────────────────────────────────── */
.elem-list {
  display: flex;
  flex-direction: column;
  gap: 6px;
  max-height: 400px;
  overflow-y: auto;
}

.empty-hint {
  color: var(--text-3);
  font-size: 11px;
  text-align: center;
  padding: 12px 0;
  line-height: 1.7;
}

.elem-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 8px;
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: border-color 0.1s;
}
.elem-item:hover { border-color: var(--border-mid); }
.elem-item.selected { border-color: var(--accent); }

.elem-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  flex-shrink: 0;
}
.elem-period-bar {
  width: 10px;
  height: 10px;
  border-radius: 2px;
  flex-shrink: 0;
}

.elem-info { flex: 1; min-width: 0; }
.elem-name {
  font-size: 11px;
  color: var(--text-0);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.elem-date { font-size: 10px; color: var(--text-3); }

.elem-actions { display: flex; gap: 2px; opacity: 0; transition: opacity 0.1s; }
.elem-item:hover .elem-actions { opacity: 1; }
.elem-action-btn {
  padding: 2px 4px;
  background: none;
  border: none;
  color: var(--text-2);
  cursor: pointer;
  border-radius: 3px;
  font-size: 11px;
  transition: background 0.1s, color 0.1s;
}
.elem-action-btn:hover { background: var(--bg-4); color: var(--text-0); }
.elem-action-btn.del:hover { color: var(--danger); }

.badge {
  background: var(--bg-3);
  color: var(--text-2);
  border-radius: 10px;
  padding: 1px 7px;
  font-size: 10px;
  font-weight: 500;
}

/* ── TIMELINE SVG ELEMENTS ───────────────────────── */
.tl-period-rect { opacity: 0.3; }
.tl-period-rect:hover { opacity: 0.5; cursor: pointer; }
.tl-event-marker { cursor: pointer; }
.tl-event-marker:hover .tl-dot { r: 6; }
.tl-label { pointer-events: none; user-select: none; }
.tl-event-card {
  cursor: pointer;
  filter: drop-shadow(0 2px 4px rgba(0,0,0,0.3));
}
.tl-event-card:hover rect { stroke-width: 2; }

/* ── MODAL ───────────────────────────────────────── */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.6);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
}
.modal {
  background: var(--bg-2);
  border: 1px solid var(--border-mid);
  border-radius: var(--radius-lg);
  width: 480px;
  max-width: 95vw;
  overflow: hidden;
  box-shadow: 0 16px 48px rgba(0,0,0,0.5);
}
.modal-header {
  display: flex;
  align-items: center;
  padding: 12px 16px;
  border-bottom: 1px solid var(--border);
}
.modal-header h3 { flex: 1; font-size: 14px; color: var(--text-0); }
.modal-body { padding: 16px; }
.modal-body img { max-width: 100%; max-height: 300px; object-fit: contain; display: block; margin: auto; }
.modal-footer {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
  padding: 12px 16px;
  border-top: 1px solid var(--border);
}

/* ── TOAST ───────────────────────────────────────── */
.toast-container {
  position: fixed;
  bottom: 20px;
  right: 20px;
  z-index: 2000;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.toast {
  padding: 10px 16px;
  background: var(--bg-2);
  border: 1px solid var(--border-mid);
  border-radius: var(--radius-md);
  color: var(--text-0);
  font-size: 12px;
  box-shadow: 0 4px 16px rgba(0,0,0,0.4);
  animation: toast-in 0.2s ease;
  max-width: 300px;
}
.toast.success { border-left: 3px solid var(--success); }
.toast.error   { border-left: 3px solid var(--danger); }
.toast.info    { border-left: 3px solid var(--accent); }

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

/* ── THEME CLAIR ─────────────────────────────────── */
body.theme-light {
  --bg-0:       #f0f2f5;
  --bg-1:       #ffffff;
  --bg-2:       #f8f9fb;
  --bg-3:       #edf0f3;
  --bg-4:       #dde1e8;

  --text-0:     #1a1e24;
  --text-1:     #2a303a;
  --text-2:     #5a6070;
  --text-3:     #8a919e;

  --border:     rgba(0,0,0,0.08);
  --border-mid: rgba(0,0,0,0.14);

  --axis-bg:    #e4e8f0;
  --tick-color: rgba(0,0,0,0.18);
}

/* ── MODAL LARGE (paramètres) ──────────────────────── */
.modal-wide {
  width: 640px;
  max-width: 96vw;
}
.settings-body {
  display: flex;
  gap: 24px;
  padding: 20px;
}
.settings-col {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.settings-section {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.settings-section-title {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: var(--accent);
  padding-bottom: 6px;
  border-bottom: 1px solid var(--border);
}
.settings-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}
.settings-label {
  font-size: 12px;
  color: var(--text-1);
  flex-shrink: 0;
}
.settings-select { width: 160px; }
.settings-input  { width: 70px; text-align: right; }

/* ── BREAKS LIST ─────────────────────────────────── */
.breaks-list {
  display: flex;
  flex-direction: column;
  gap: 4px;
  margin-bottom: 6px;
}
.break-item {
  display: flex;
  align-items: center;
  gap: 6px;
  background: var(--bg-3);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 4px 8px;
  font-size: 11px;
  color: var(--text-1);
}
.break-item span { flex: 1; }
.break-item button {
  padding: 1px 5px;
  background: none;
  border: none;
  color: var(--danger);
  cursor: pointer;
  font-size: 12px;
  border-radius: 3px;
}
.break-item button:hover { background: var(--bg-4); }

/* ── DRAG ──────────────────────────────────────────── */
.tl-event-card { cursor: grab; }
.tl-event-card.dragging { cursor: grabbing; }
svg.dragging-active { cursor: grabbing; }

/* ── PÉRIODE CARTE ─────────────────────────────────── */
.tl-period-card { cursor: pointer; filter: drop-shadow(0 2px 6px rgba(0,0,0,0.35)); }

/* ── SCROLLBARS ──────────────────────────────────────── */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--bg-4); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--text-3); }

/* ── EDIT MODE ──────────────────────────────────────── */
.btn-editing {
  background: var(--accent-dark) !important;
  color: var(--text-0) !important;
  border-color: var(--accent) !important;
}
.btn-editing:hover { background: var(--accent) !important; }

/* ── CANVAS PAN ─────────────────────────────────────── */
.canvas-scroll-container.panning { cursor: grabbing !important; }

/* ── RESIZE HANDLES ─────────────────────────────────── */
[data-resize] { transition: opacity 0.15s; }
[data-resize]:hover { opacity: 1 !important; }