/* Simulateur financier PV — styles. Owns all visual presentation for /simulateur. */
:root {
  --bg: #0c0f14;
  --bg-card: #151920;
  --bg-input: #1c2028;
  --border: #2a2f3a;
  --border-focus: #3b82f6;
  --text: #e8eaed;
  --text-muted: #8b919e;
  --text-heading: #f4f5f7;
  --accent: #3b82f6;
  --accent-light: #60a5fa;
  --accent-glow: rgba(59, 130, 246, 0.15);
  --green: #22c55e;
  --green-muted: rgba(34,197,94,0.12);
  --amber: #f59e0b;
  --amber-muted: rgba(245,158,11,0.12);
  --red: #ef4444;
  --red-muted: rgba(239,68,68,0.12);
  --font-display: 'Instrument Serif', serif;
  --font-body: 'Satoshi', -apple-system, sans-serif;
  --radius: 12px;
}

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

body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--text);
  line-height: 1.55;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

/* Header */
.sim-header {
  border-bottom: 1px solid var(--border);
  padding: 20px 0;
  background: linear-gradient(180deg, rgba(59,130,246,0.04) 0%, transparent 100%);
}
.sim-header .inner {
  max-width: 1200px; margin: 0 auto; padding: 0 24px;
  display: flex; align-items: center; justify-content: space-between;
  flex-wrap: wrap; gap: 12px;
}
.sim-header .brand {
  font-family: var(--font-display); font-size: 1.5rem;
  color: var(--text-heading); letter-spacing: -0.02em;
}
.sim-header .brand span { color: var(--accent-light); }
.sim-header .subtitle { font-size: 0.85rem; color: var(--text-muted); font-weight: 500; }

/* Main layout */
.sim-main {
  max-width: 1200px; margin: 0 auto; padding: 32px 24px 64px;
  display: grid; grid-template-columns: 380px 1fr; gap: 32px; align-items: start;
}
@media (max-width: 900px) {
  .sim-main { grid-template-columns: 1fr; padding: 20px 16px 48px; gap: 24px; }
}

/* Input panel */
.panel {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 28px 24px;
  position: sticky; top: 24px;
}
@media (max-width: 900px) { .panel { position: static; } }
.panel-title {
  font-family: var(--font-display); font-size: 1.35rem;
  color: var(--text-heading); margin-bottom: 24px;
  padding-bottom: 16px; border-bottom: 1px solid var(--border);
}

.field { margin-bottom: 20px; }
.field:last-child { margin-bottom: 0; }
.field label {
  display: block; font-size: 0.8rem; font-weight: 600;
  color: var(--text-muted); text-transform: uppercase;
  letter-spacing: 0.06em; margin-bottom: 6px;
}
.field .input-wrap { position: relative; display: flex; align-items: center; }
.field input[type="number"] {
  width: 100%; background: var(--bg-input); border: 1px solid var(--border);
  border-radius: 8px; padding: 10px 14px;
  font-family: var(--font-body); font-size: 0.95rem; font-weight: 500;
  color: var(--text); outline: none;
  transition: border-color 0.2s, box-shadow 0.2s;
  -moz-appearance: textfield;
}
.field input[type="number"]::-webkit-inner-spin-button,
.field input[type="number"]::-webkit-outer-spin-button { -webkit-appearance: none; margin: 0; }
.field input:focus { border-color: var(--border-focus); box-shadow: 0 0 0 3px var(--accent-glow); }
.field .unit {
  position: absolute; right: 12px; font-size: 0.8rem;
  color: var(--text-muted); font-weight: 500; pointer-events: none;
}
.field input.has-unit { padding-right: 60px; }
.field .hint { font-size: 0.75rem; color: var(--text-muted); margin-top: 4px; }

.sep { height: 1px; background: var(--border); margin: 24px 0; }

.btn-calc {
  width: 100%; padding: 13px 20px; background: var(--accent);
  color: #fff; border: none; border-radius: 8px;
  font-family: var(--font-body); font-size: 0.95rem; font-weight: 600;
  cursor: pointer; transition: background 0.2s, transform 0.1s; letter-spacing: 0.01em;
}
.btn-calc:hover { background: #2563eb; }
.btn-calc:active { transform: scale(0.98); }

/* Results */
.results { min-width: 0; }
.results-empty {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 80px 32px; text-align: center;
}
.results-empty .icon { font-size: 2.5rem; margin-bottom: 16px; opacity: 0.5; }
.results-empty p { color: var(--text-muted); font-size: 0.95rem; }

/* KPI grid */
.kpi-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(170px, 1fr));
  gap: 14px; margin-bottom: 24px;
}
.kpi {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 20px 18px; transition: border-color 0.2s;
}
.kpi:hover { border-color: var(--accent); }
.kpi .kpi-label {
  font-size: 0.75rem; font-weight: 600; color: var(--text-muted);
  text-transform: uppercase; letter-spacing: 0.06em; margin-bottom: 8px;
}
.kpi .kpi-value {
  font-family: var(--font-display); font-size: 1.6rem;
  color: var(--text-heading); line-height: 1.2;
}
.kpi .kpi-sub { font-size: 0.78rem; color: var(--text-muted); margin-top: 4px; }
.kpi.positive .kpi-value { color: var(--green); }
.kpi.caution .kpi-value { color: var(--amber); }
.kpi.negative .kpi-value { color: var(--red); }

/* Chart */
.chart-card {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 24px; margin-bottom: 24px;
}
.chart-card h3 {
  font-family: var(--font-display); font-size: 1.15rem;
  color: var(--text-heading); margin-bottom: 20px;
}
.chart-wrap { position: relative; width: 100%; height: 340px; }
@media (max-width: 600px) { .chart-wrap { height: 260px; } }

/* Table */
.table-card {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius); overflow: hidden; margin-bottom: 24px;
}
.table-card h3 {
  font-family: var(--font-display); font-size: 1.15rem;
  color: var(--text-heading); padding: 20px 24px 16px;
}
.table-scroll { overflow-x: auto; }
.sim-table { width: 100%; border-collapse: collapse; font-size: 0.85rem; min-width: 640px; }
.sim-table thead th {
  background: var(--bg-input); color: var(--text-muted); font-weight: 600;
  text-transform: uppercase; letter-spacing: 0.05em; font-size: 0.72rem;
  padding: 10px 16px; text-align: right; border-bottom: 1px solid var(--border);
  position: sticky; top: 0;
}
.sim-table thead th:first-child { text-align: center; }
.sim-table tbody td {
  padding: 9px 16px; text-align: right;
  border-bottom: 1px solid rgba(42,47,58,0.5); font-variant-numeric: tabular-nums;
}
.sim-table tbody td:first-child { text-align: center; font-weight: 600; color: var(--accent-light); }
.sim-table tbody tr:hover { background: rgba(59,130,246,0.04); }
.sim-table .neg { color: var(--red); }
.sim-table .pos { color: var(--green); }

/* Actions */
.actions { display: flex; gap: 12px; flex-wrap: wrap; }
.btn-secondary {
  padding: 10px 20px; background: var(--bg-input); border: 1px solid var(--border);
  border-radius: 8px; color: var(--text); font-family: var(--font-body);
  font-size: 0.85rem; font-weight: 600; cursor: pointer;
  transition: border-color 0.2s, background 0.2s;
}
.btn-secondary:hover { border-color: var(--accent); background: var(--accent-glow); }

/* Print */
@media print {
  body { background: #fff; color: #1a1a1a; -webkit-print-color-adjust: exact; print-color-adjust: exact; }
  .sim-header { background: none; border-bottom: 2px solid #1a1a1a; }
  .sim-header .brand { color: #1a1a1a; }
  .sim-header .brand span { color: #3b82f6; }
  .sim-main { display: block; max-width: 100%; padding: 16px; }
  .panel { position: static; background: #f8f9fa; border: 1px solid #ddd; page-break-after: avoid; margin-bottom: 24px; }
  .panel-title, .chart-card h3, .table-card h3 { color: #1a1a1a; }
  .field label { color: #555; }
  .field input { background: #fff; border-color: #ccc; color: #1a1a1a; }
  .field .unit { color: #666; }
  .btn-calc, .actions { display: none !important; }
  .kpi { background: #f8f9fa; border-color: #ddd; }
  .kpi .kpi-label { color: #555; }
  .kpi .kpi-value { color: #1a1a1a; }
  .kpi.positive .kpi-value { color: #16a34a; }
  .chart-card { background: #fff; border-color: #ddd; page-break-inside: avoid; }
  .table-card { background: #fff; border-color: #ddd; }
  .sim-table thead th { background: #eee; color: #333; }
  .sim-table tbody td { color: #1a1a1a; border-color: #ddd; }
  .sim-table tbody td:first-child { color: #3b82f6; }
  .results-empty { display: none; }
}

/* Animations */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(12px); }
  to { opacity: 1; transform: translateY(0); }
}
.animate-in { animation: fadeInUp 0.35s ease forwards; }