/* ====================================================================
   SALAS GP — Design System
   Partage l'identité graphique de la suite SALAS ERP (salaserp.com)
   ==================================================================== */

:root {
  --bg-dark: #14161F;
  --bg-dark-2: #1B1E2B;
  --bg-app: #F5F6F8;
  --surface: #FFFFFF;
  --border: #E5E7EB;
  --border-soft: #EEF0F3;

  --text-primary: #14161F;
  --text-secondary: #5A5F70;
  --text-muted: #9298A8;
  --text-inverse: #F2F3F7;
  --text-inverse-muted: #9BA0B5;

  --accent: #5451F0;
  --accent-hover: #4340D6;
  --accent-soft: #EEEDFE;

  --success: #17A461;
  --success-soft: #E7F7EF;
  --warning: #D97706;
  --warning-soft: #FEF3C7;
  --danger: #DC2626;
  --danger-soft: #FEE2E2;
  --info: #2563EB;
  --info-soft: #DBEAFE;

  --radius: 14px;
  --radius-sm: 9px;
  --sidebar-w: 264px;
  --topbar-h: 64px;

  --font-ui: 'Inter', -apple-system, sans-serif;
  --font-mono: 'IBM Plex Mono', ui-monospace, monospace;
}

* { box-sizing: border-box; }

body {
  font-family: var(--font-ui);
  background: var(--bg-app);
  color: var(--text-primary);
  font-size: 14.5px;
}

a { text-decoration: none; color: inherit; }

/* ==================== LAYOUT SHELL ==================== */

.app-shell { display: flex; min-height: 100vh; }

/* ---- Sidebar ---- */
.sidebar {
  width: var(--sidebar-w);
  flex-shrink: 0;
  background: var(--bg-dark);
  color: var(--text-inverse);
  position: fixed;
  top: 0; left: 0; bottom: 0;
  display: flex;
  flex-direction: column;
  z-index: 200;
  transition: transform 0.2s ease;
}

.sidebar-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 20px 20px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}
.sidebar-brand .brand-mark {
  width: 32px; height: 32px; border-radius: 9px;
  background: linear-gradient(135deg, var(--accent), #8B5CF6);
  display: flex; align-items: center; justify-content: center;
  font-weight: 800; color: #fff; font-size: 15px; flex-shrink: 0;
}
.sidebar-brand .brand-name { font-weight: 700; font-size: 15px; line-height: 1.2; }
.sidebar-brand .brand-sub { font-size: 11px; color: var(--text-inverse-muted); font-family: var(--font-mono); }

.sidebar-nav { flex: 1; overflow-y: auto; padding: 14px 12px; }
.sidebar-section-label {
  font-size: 10.5px; text-transform: uppercase; letter-spacing: 0.08em;
  color: var(--text-inverse-muted); padding: 16px 12px 8px;
  font-weight: 600;
}
.sidebar-link {
  display: flex; align-items: center; gap: 12px;
  padding: 10px 12px; border-radius: var(--radius-sm);
  color: var(--text-inverse-muted); font-size: 13.5px; font-weight: 500;
  margin-bottom: 2px; transition: background 0.15s ease, color 0.15s ease;
}
.sidebar-link i { font-size: 16px; width: 18px; text-align: center; }
.sidebar-link:hover { background: rgba(255,255,255,0.06); color: var(--text-inverse); }
.sidebar-link.active { background: var(--accent); color: #fff; }
.sidebar-link .badge-count {
  margin-left: auto; background: rgba(255,255,255,0.1); color: var(--text-inverse);
  font-size: 10.5px; font-weight: 700; padding: 2px 7px; border-radius: 20px;
}

.sidebar-footer {
  padding: 14px 20px; border-top: 1px solid rgba(255,255,255,0.08);
  font-size: 11.5px; color: var(--text-inverse-muted);
}

/* ---- Main area ---- */
.main-area { margin-left: var(--sidebar-w); flex: 1; min-width: 0; display: flex; flex-direction: column; }

.topbar {
  height: var(--topbar-h);
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 24px; position: sticky; top: 0; z-index: 100;
  gap: 20px;
}

.sidebar-toggle {
  display: none;
  background: none; border: none; font-size: 20px; color: var(--text-secondary); cursor: pointer;
}

.topbar-search { position: relative; flex: 1; max-width: 380px; }
.topbar-search i {
  position: absolute; left: 13px; top: 50%; transform: translateY(-50%);
  color: var(--text-muted); font-size: 14px;
}
.topbar-search input {
  width: 100%; border: 1px solid var(--border); background: var(--bg-app);
  border-radius: var(--radius-sm); padding: 9px 14px 9px 36px; font-size: 13.5px; outline: none;
}
.topbar-search input:focus { border-color: var(--accent); background: var(--surface); }

.topbar-right { display: flex; align-items: center; gap: 16px; }

.icon-btn {
  position: relative; width: 38px; height: 38px; border-radius: var(--radius-sm);
  border: 1px solid var(--border); background: var(--surface); color: var(--text-secondary);
  display: flex; align-items: center; justify-content: center; font-size: 16px; cursor: pointer;
}
.icon-btn:hover { background: var(--bg-app); }
.icon-btn .dot {
  position: absolute; top: 7px; right: 7px; width: 7px; height: 7px; border-radius: 50%;
  background: var(--danger); border: 1.5px solid var(--surface);
}

.user-menu { display: flex; align-items: center; gap: 10px; cursor: pointer; }
.user-avatar {
  width: 36px; height: 36px; border-radius: 50%; background: var(--accent-soft); color: var(--accent);
  display: flex; align-items: center; justify-content: center; font-weight: 700; font-size: 13px;
}
.user-meta { line-height: 1.25; }
.user-meta .name { font-size: 13px; font-weight: 600; }
.user-meta .role { font-size: 11.5px; color: var(--text-muted); }

.page-content { padding: 28px; flex: 1; }

.page-head {
  display: flex; align-items: flex-start; justify-content: space-between;
  margin-bottom: 24px; flex-wrap: wrap; gap: 12px;
}
.page-title { font-size: 21px; font-weight: 800; letter-spacing: -0.01em; margin: 0 0 4px; }
.page-subtitle { color: var(--text-secondary); font-size: 13.5px; }
.breadcrumb-mini { font-size: 12px; color: var(--text-muted); font-family: var(--font-mono); margin-bottom: 6px; }

/* ==================== BUTTONS ==================== */

.btn {
  display: inline-flex; align-items: center; gap: 7px;
  padding: 9px 16px; border-radius: var(--radius-sm);
  font-weight: 600; font-size: 13.5px; border: 1px solid transparent; cursor: pointer;
  transition: all 0.15s ease;
}
.btn i { font-size: 15px; }
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: var(--accent-hover); color: #fff; }
.btn-outline { background: var(--surface); border-color: var(--border); color: var(--text-secondary); }
.btn-outline:hover { border-color: var(--accent); color: var(--accent); }
.btn-danger-outline { background: var(--surface); border-color: var(--danger-soft); color: var(--danger); }
.btn-danger-outline:hover { background: var(--danger-soft); }
.btn-sm { padding: 6px 11px; font-size: 12.5px; }
.btn-icon-only { padding: 7px 9px; }

/* ==================== CARDS / STATS ==================== */

.card {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 20px;
}

.stat-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin-bottom: 24px; }
.stat-card {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 20px; display: flex; flex-direction: column; gap: 10px;
}
.stat-top { display: flex; align-items: center; justify-content: space-between; }
.stat-icon {
  width: 38px; height: 38px; border-radius: 10px; display: flex; align-items: center; justify-content: center;
  font-size: 17px;
}
.stat-icon.accent { background: var(--accent-soft); color: var(--accent); }
.stat-icon.success { background: var(--success-soft); color: var(--success); }
.stat-icon.warning { background: var(--warning-soft); color: var(--warning); }
.stat-icon.danger { background: var(--danger-soft); color: var(--danger); }
.stat-trend { font-size: 11.5px; font-weight: 700; padding: 3px 8px; border-radius: 20px; }
.stat-trend.up { background: var(--success-soft); color: var(--success); }
.stat-trend.down { background: var(--danger-soft); color: var(--danger); }
.stat-value { font-family: var(--font-mono); font-size: 26px; font-weight: 700; }
.stat-label { font-size: 12.5px; color: var(--text-muted); }

/* ==================== TABLE ==================== */

.table-card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; }
.table-toolbar {
  display: flex; align-items: center; justify-content: space-between; padding: 16px 20px;
  border-bottom: 1px solid var(--border-soft); flex-wrap: wrap; gap: 12px;
}
.table-toolbar-left { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }

.data-table { width: 100%; border-collapse: collapse; font-size: 13.5px; }
.data-table thead th {
  text-align: left; padding: 12px 20px; background: var(--bg-app);
  color: var(--text-muted); font-size: 11.5px; text-transform: uppercase;
  letter-spacing: 0.04em; font-weight: 700; border-bottom: 1px solid var(--border);
  white-space: nowrap;
}
.data-table tbody td { padding: 13px 20px; border-bottom: 1px solid var(--border-soft); vertical-align: middle; }
.data-table tbody tr:last-child td { border-bottom: none; }
.data-table tbody tr:hover { background: var(--bg-app); }
.cell-strong { font-weight: 600; }
.cell-muted { color: var(--text-muted); font-size: 12.5px; }
.cell-mono { font-family: var(--font-mono); font-size: 12.5px; }

.row-actions { display: flex; gap: 6px; justify-content: flex-end; }

.table-empty { text-align: center; padding: 60px 20px; color: var(--text-muted); }
.table-empty i { font-size: 32px; margin-bottom: 10px; display: block; color: var(--border); }

.table-footer {
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 20px; border-top: 1px solid var(--border-soft); font-size: 12.5px; color: var(--text-muted);
}

/* ==================== BADGES ==================== */

.badge-pill {
  display: inline-flex; align-items: center; gap: 5px;
  padding: 4px 10px; border-radius: 20px; font-size: 11.5px; font-weight: 700;
}
.badge-pill.success { background: var(--success-soft); color: var(--success); }
.badge-pill.warning { background: var(--warning-soft); color: var(--warning); }
.badge-pill.danger { background: var(--danger-soft); color: var(--danger); }
.badge-pill.info { background: var(--info-soft); color: var(--info); }
.badge-pill.muted { background: var(--bg-app); color: var(--text-muted); border: 1px solid var(--border); }
.badge-pill .dot { width: 6px; height: 6px; border-radius: 50%; background: currentColor; }

/* ==================== FORMS / MODAL ==================== */

.form-label { font-size: 12.5px; font-weight: 600; color: var(--text-secondary); margin-bottom: 6px; display: block; }
.form-control, .form-select {
  border: 1px solid var(--border); border-radius: var(--radius-sm);
  padding: 10px 12px; font-size: 13.5px; width: 100%;
}
.form-control:focus, .form-select:focus {
  border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft); outline: none;
}

.modal-content { border-radius: var(--radius); border: none; }
.modal-header { border-bottom: 1px solid var(--border-soft); padding: 18px 22px; }
.modal-title { font-weight: 700; font-size: 16px; }
.modal-body { padding: 22px; }
.modal-footer { border-top: 1px solid var(--border-soft); padding: 16px 22px; }

/* ==================== LOGIN ==================== */

.login-page {
  min-height: 100vh; display: flex; align-items: center; justify-content: center;
  background: radial-gradient(ellipse 80% 60% at 50% -10%, rgba(84,81,240,0.25), transparent),
              linear-gradient(180deg, var(--bg-dark) 0%, var(--bg-dark-2) 100%);
  padding: 24px;
}
.login-card {
  width: 100%; max-width: 400px; background: var(--surface); border-radius: 18px;
  padding: 36px 32px; box-shadow: 0 40px 100px rgba(0,0,0,0.4);
}
.login-brand { display: flex; align-items: center; gap: 10px; margin-bottom: 28px; }
.login-brand .brand-mark {
  width: 38px; height: 38px; border-radius: 10px;
  background: linear-gradient(135deg, var(--accent), #8B5CF6);
  display: flex; align-items: center; justify-content: center; color: #fff; font-weight: 800;
}
.login-brand-text .name { font-weight: 700; font-size: 16px; }
.login-brand-text .sub { font-size: 11.5px; color: var(--text-muted); font-family: var(--font-mono); }
.login-error {
  background: var(--danger-soft); color: var(--danger); border-radius: var(--radius-sm);
  padding: 10px 14px; font-size: 13px; margin-bottom: 16px; display: none;
}

/* ==================== EMPTY STATE / GENERIC ==================== */

.empty-state { text-align: center; padding: 50px 20px; color: var(--text-muted); }
.empty-state i { font-size: 36px; color: var(--border); margin-bottom: 12px; display: block; }

.toast-stack { position: fixed; top: 20px; right: 20px; z-index: 2000; display: flex; flex-direction: column; gap: 10px; }

/* ==================== RESPONSIVE ==================== */

@media (max-width: 992px) {
  .sidebar { transform: translateX(-100%); }
  .sidebar.open { transform: translateX(0); }
  .main-area { margin-left: 0; }
  .sidebar-toggle { display: block; }
  .stat-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 600px) {
  .stat-grid { grid-template-columns: 1fr; }
  .topbar-search { display: none; }
  .page-content { padding: 18px; }
}