:root {
  --bg: #0f172a;
  --panel: #1e293b;
  --panel2: #273549;
  --text: #e2e8f0;
  --muted: #94a3b8;
  --border: #334155;
  --primary: #3b82f6;
  --primary-h: #2563eb;
  --green: #22c55e;
  --red: #ef4444;
  --meca: #3b82f6;
  --elec: #a855f7;
  --parts: #f97316;
  --expenses: #ec4899;
  --gain: #22c55e;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: "Segoe UI", system-ui, -apple-system, sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
}

.hidden { display: none !important; }
.muted { color: var(--muted); }
.error { color: var(--red); }
.ok { color: var(--green); }

/* ---------- connexion ---------- */
#view-login {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  padding: 16px;
}
.login-box {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 32px;
  width: 100%;
  max-width: 380px;
}
.login-box h1 { font-size: 1.3rem; margin: 0 0 4px; }
.login-box p { margin-top: 0; }

.nav-bar {
  display: flex;
  gap: 4px;
  background: var(--panel);
  border-bottom: 1px solid var(--border);
  padding: 0 24px;
  position: sticky;
  top: 56px;
  z-index: 9;
}
.nav-link {
  background: none;
  border: none;
  border-bottom: 3px solid transparent;
  color: var(--muted);
  padding: 12px 20px;
  cursor: pointer;
  font-size: 0.95rem;
  transition: color 0.15s, border-color 0.15s;
}
.nav-link:hover { color: var(--text); }
.nav-link.active {
  color: var(--primary);
  border-bottom-color: var(--primary);
  font-weight: 600;
}

/* ---------- entête ---------- */
header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
  padding: 14px 24px;
  background: var(--panel);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 10;
}
header h1 { font-size: 1.15rem; margin: 0; }
.header-right { display: flex; align-items: center; gap: 10px; }

.sys-info {
  font-size: 0.75rem;
  color: var(--muted);
  display: flex;
  align-items: center;
  gap: 6px;
  background: var(--panel2);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 4px 10px;
}
.sys-sep { color: var(--border); }

main {
  max-width: 1200px;
  margin: 0 auto;
  padding: 20px 16px 60px;
  display: flex;
  flex-direction: column;
  gap: 18px;
}

/* ---------- barre d'outils ---------- */
.toolbar {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  flex-wrap: wrap;
  gap: 12px;
}
.tabs { display: flex; gap: 6px; }
.tab {
  background: var(--panel);
  border: 1px solid var(--border);
  color: var(--muted);
  padding: 9px 20px;
  border-radius: 10px;
  cursor: pointer;
  font-size: 0.95rem;
}
.tab.active {
  background: var(--primary);
  border-color: var(--primary);
  color: #fff;
  font-weight: 600;
}
.date-picker { display: flex; flex-direction: column; gap: 4px; font-size: 0.8rem; color: var(--muted); }

/* ---------- cartes ---------- */
.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 12px;
}
.card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 16px;
}
.card-title { font-size: 0.82rem; color: var(--muted); margin-bottom: 6px; }
.card-value { font-size: 1.5rem; font-weight: 700; }
.card-sub { font-size: 0.78rem; color: var(--muted); margin-top: 4px; }
.card.kpi { border-left: 4px solid var(--primary); }
.card.cat-meca   { border-left: 4px solid var(--meca); }
.card.cat-pieces { border-left: 4px solid var(--pieces); }
.card.cat-elec   { border-left: 4px solid var(--elec); }
.gain-pos { color: var(--green); }
.gain-neg { color: var(--red); }

/* ---------- panneaux ---------- */
.panel {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 18px;
}
.panel h2 { font-size: 1rem; margin: 0 0 14px; }
.two-cols {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
}
@media (max-width: 820px) { .two-cols { grid-template-columns: 1fr; } }

/* ---------- graphique ---------- */
#chart { width: 100%; }
.legend {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  font-size: 0.8rem;
  color: var(--muted);
  margin-bottom: 8px;
}
.dot { display: inline-block; width: 10px; height: 10px; border-radius: 3px; margin-right: 5px; }
.d-meca { background: var(--meca); }
.d-elec { background: var(--elec); }
.d-parts { background: var(--parts); }
.d-expenses { background: var(--expenses); }
.d-gain { background: var(--gain); }

/* ---------- formulaires ---------- */
label { display: flex; flex-direction: column; gap: 5px; font-size: 0.85rem; color: var(--muted); }
input, select {
  background: var(--panel2);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 9px 12px;
  border-radius: 8px;
  font-size: 0.95rem;
  width: 100%;
}
input:focus, select:focus { outline: 2px solid var(--primary); border-color: transparent; }
input[type="date"] { color-scheme: dark; }

.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}
.form-grid .span2 { grid-column: span 2; }
.form-inline { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 10px; }
.form-inline input, .form-inline select { flex: 1; min-width: 120px; width: auto; }

#login-form { display: flex; flex-direction: column; gap: 14px; margin-top: 16px; }

.btn {
  background: var(--panel2);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 9px 16px;
  border-radius: 8px;
  cursor: pointer;
  font-size: 0.92rem;
}
.btn:hover { border-color: var(--primary); }
.btn.primary { background: var(--primary); border-color: var(--primary); color: #fff; font-weight: 600; }
.btn.primary:hover { background: var(--primary-h); }
.btn.small { padding: 6px 12px; font-size: 0.82rem; }
.btn.full { width: 100%; }
.btn.danger { color: var(--red); }

/* ---------- listes ---------- */
.list { display: flex; flex-direction: column; gap: 6px; }
.list-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: var(--panel2);
  border-radius: 8px;
  padding: 8px 12px;
  font-size: 0.9rem;
}
.badge {
  background: var(--panel2);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 2px 10px;
  font-size: 0.75rem;
  color: var(--muted);
  font-weight: 400;
}

/* ---------- tableau ---------- */
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: 0.88rem; }
th, td { text-align: left; padding: 9px 10px; border-bottom: 1px solid var(--border); }
th { color: var(--muted); font-weight: 600; font-size: 0.78rem; text-transform: uppercase; }
td.num, th.num { text-align: right; font-variant-numeric: tabular-nums; }
.cat-badge {
  padding: 2px 9px;
  border-radius: 20px;
  font-size: 0.75rem;
  font-weight: 600;
  color: #fff;
}
.cb-mecanique { background: var(--meca); }
.cb-electricite { background: var(--elec); }

.pay-badge {
  padding: 2px 9px;
  border-radius: 20px;
  font-size: 0.75rem;
  font-weight: 600;
}
.pb-avance { background: #f97316; color: #fff; }
.pb-salaire { background: #3b82f6; color: #fff; }

.emp-stats { font-size: 0.8rem; color: var(--muted); }
.emp-stats strong { color: var(--text); }

/* ---------- pièces ---------- */
.parts-section {
  background: var(--panel2);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 12px;
  margin-top: 4px;
}
.parts-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 10px;
}
.part-row {
  display: grid;
  grid-template-columns: 1fr 70px 90px 30px;
  gap: 6px;
  margin-bottom: 6px;
  align-items: end;
}
.part-row input { padding: 7px 10px; font-size: 0.85rem; }
.part-row .btn-del-part {
  background: var(--red);
  border: none;
  color: #fff;
  border-radius: 6px;
  cursor: pointer;
  height: 36px;
  font-size: 0.9rem;
}
.parts-total {
  margin-top: 8px;
  font-size: 0.85rem;
  color: var(--muted);
  text-align: right;
}

/* ---------- dialogue ---------- */
dialog {
  background: var(--panel);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 24px;
  width: 100%;
  max-width: 360px;
}
dialog::backdrop { background: rgba(0,0,0,0.6); }
dialog form { display: flex; flex-direction: column; gap: 12px; }
dialog h2 { margin: 0 0 4px; font-size: 1.05rem; }
.dialog-actions { display: flex; justify-content: flex-end; gap: 8px; margin-top: 6px; }