/* ============================================================
   NEMOUBLIESPAS — Design system (Phase 4)
   Palette quasi monochrome + un accent. Le rouge = action requise.
   ============================================================ */

:root {
  --bg-base: #FAFAF9;
  --bg-surface: #FFFFFF;
  --bg-subtle: #F2F2F0;
  --ink-primary: #1A1C1F;
  --ink-secondary: #6B6F76;
  --border: rgba(0, 0, 0, 0.08);
  --accent: #2D5BFF;
  --accent-soft: rgba(45, 91, 255, 0.08);
  --status-paid: #1F8A5C;
  --status-paid-soft: rgba(31, 138, 92, 0.10);
  --status-soon: #C77D1E;
  --status-soon-soft: rgba(199, 125, 30, 0.10);
  --status-urgent: #C4372F;
  --status-urgent-soft: rgba(196, 55, 47, 0.09);
  --status-done: #A8ABB0;
  --shadow-float: 0 12px 40px rgba(16, 18, 24, 0.14);
  --radius-card: 12px;
  --radius-ctrl: 8px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg-base: #0E0F11;
    --bg-surface: #17181B;
    --bg-subtle: #1F2024;
    --ink-primary: #F2F2F0;
    --ink-secondary: #9A9EA6;
    --border: rgba(255, 255, 255, 0.09);
    --accent: #5B7FFF;
    --accent-soft: rgba(91, 127, 255, 0.14);
    --status-paid: #34C088;
    --status-paid-soft: rgba(52, 192, 136, 0.13);
    --status-soon: #E5A44A;
    --status-soon-soft: rgba(229, 164, 74, 0.13);
    --status-urgent: #E85D53;
    --status-urgent-soft: rgba(232, 93, 83, 0.12);
    --status-done: #5A5D63;
    --shadow-float: 0 12px 40px rgba(0, 0, 0, 0.5);
  }
}

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

html { scroll-behavior: smooth; }

body {
  font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;
  background: var(--bg-base);
  color: var(--ink-primary);
  font-size: 15px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

.num, .amount { font-variant-numeric: tabular-nums; }

h1, h2, h3 { letter-spacing: -0.02em; line-height: 1.15; }

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

button { font-family: inherit; cursor: pointer; }

.container { max-width: 1080px; margin: 0 auto; padding: 0 24px; }

/* ---------- Boutons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  border: none; border-radius: var(--radius-ctrl);
  padding: 12px 22px; font-size: 15px; font-weight: 600;
  transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.15s ease;
}
.btn:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { transform: translateY(-1px); box-shadow: 0 6px 20px rgba(45, 91, 255, 0.3); }
.btn-ghost { background: transparent; color: var(--ink-primary); border: 1px solid var(--border); }
.btn-ghost:hover { background: var(--bg-subtle); }
.btn-sm { padding: 7px 14px; font-size: 13px; }
.btn-block { width: 100%; }

/* ---------- Navigation ---------- */
.nav {
  position: sticky; top: 0; z-index: 50;
  background: color-mix(in srgb, var(--bg-base) 85%, transparent);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}
.nav-inner {
  display: flex; align-items: center; justify-content: space-between;
  height: 64px;
}
.logo {
  display: flex; align-items: center; gap: 10px;
  font-weight: 700; font-size: 16px; letter-spacing: -0.01em;
  color: var(--ink-primary);
}
.logo-mark {
  width: 28px; height: 28px; border-radius: 8px;
  background: var(--accent); color: #fff;
  display: inline-flex; align-items: center; justify-content: center;
  font-size: 14px; font-weight: 700;
}
.nav-actions { display: flex; gap: 10px; align-items: center; }

/* ---------- Landing ---------- */
.hero { padding: 88px 0 64px; text-align: center; }
.hero h1 {
  font-size: clamp(34px, 5.5vw, 54px); font-weight: 700;
  max-width: 780px; margin: 0 auto 20px;
}
.hero .sub {
  font-size: 18px; color: var(--ink-secondary);
  max-width: 640px; margin: 0 auto 32px;
}
.hero .fine { margin-top: 14px; font-size: 13px; color: var(--ink-secondary); }

.strip { border-block: 1px solid var(--border); background: var(--bg-surface); padding: 40px 0; }
.strip-items { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.strip-item strong { display: block; font-size: 17px; margin-bottom: 6px; }
.strip-item span { color: var(--ink-secondary); font-size: 14px; }
.strip-footer { text-align: center; margin-top: 28px; color: var(--ink-secondary); font-size: 15px; }

.section { padding: 72px 0; }
.section-title { font-size: 30px; font-weight: 700; text-align: center; margin-bottom: 12px; }
.section-sub { text-align: center; color: var(--ink-secondary); max-width: 620px; margin: 0 auto 44px; }

.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.card {
  background: var(--bg-surface); border: 1px solid var(--border);
  border-radius: var(--radius-card); padding: 26px;
}
.card h3 { font-size: 17px; margin-bottom: 10px; }
.card p { color: var(--ink-secondary); font-size: 14px; }
.card .icon {
  width: 38px; height: 38px; border-radius: 10px; background: var(--accent-soft);
  color: var(--accent); display: flex; align-items: center; justify-content: center;
  font-size: 18px; margin-bottom: 16px;
}

/* Pricing */
.pricing { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; max-width: 760px; margin: 0 auto; }
.price-card {
  background: var(--bg-surface); border: 1px solid var(--border);
  border-radius: var(--radius-card); padding: 30px; position: relative;
}
.price-card.featured { border-color: var(--accent); box-shadow: 0 0 0 1px var(--accent); }
.price-badge {
  position: absolute; top: -11px; left: 24px;
  background: var(--accent); color: #fff; font-size: 11px; font-weight: 700;
  padding: 3px 10px; border-radius: 99px; letter-spacing: 0.03em;
}
.price-name { font-size: 15px; font-weight: 600; color: var(--ink-secondary); }
.price-amount { font-size: 42px; font-weight: 700; margin: 8px 0 2px; letter-spacing: -0.02em; }
.price-amount small { font-size: 15px; font-weight: 500; color: var(--ink-secondary); }
.price-card ul { list-style: none; margin: 20px 0 24px; }
.price-card li { padding: 7px 0; font-size: 14px; display: flex; gap: 10px; align-items: baseline; }
.price-card li::before { content: "✓"; color: var(--status-paid); font-weight: 700; }
.guarantee {
  max-width: 760px; margin: 28px auto 0; padding: 20px 24px;
  background: var(--status-paid-soft); border-radius: var(--radius-card);
  font-size: 14px; color: var(--ink-primary);
}

/* FAQ */
.faq { max-width: 720px; margin: 0 auto; }
.faq details {
  background: var(--bg-surface); border: 1px solid var(--border);
  border-radius: var(--radius-card); padding: 18px 22px; margin-bottom: 10px;
}
.faq summary { font-weight: 600; cursor: pointer; font-size: 15px; }
.faq details p { margin-top: 12px; color: var(--ink-secondary); font-size: 14px; }

.footer {
  border-top: 1px solid var(--border); padding: 36px 0; margin-top: 40px;
  color: var(--ink-secondary); font-size: 13px; text-align: center;
}

/* ---------- Modale d'authentification ---------- */
.modal-overlay {
  position: fixed; inset: 0; z-index: 100;
  background: rgba(14, 15, 17, 0.55);
  display: none; align-items: center; justify-content: center; padding: 20px;
}
.modal-overlay.open { display: flex; }
.modal {
  background: var(--bg-surface); border-radius: 16px; box-shadow: var(--shadow-float);
  width: 100%; max-width: 400px; padding: 32px;
}
.modal h2 { font-size: 22px; margin-bottom: 4px; }
.modal .modal-sub { color: var(--ink-secondary); font-size: 14px; margin-bottom: 22px; }
.tabs { display: flex; background: var(--bg-subtle); border-radius: var(--radius-ctrl); padding: 3px; margin-bottom: 22px; }
.tab {
  flex: 1; border: none; background: transparent; padding: 8px;
  font-size: 14px; font-weight: 600; color: var(--ink-secondary);
  border-radius: 6px;
}
.tab.active { background: var(--bg-surface); color: var(--ink-primary); box-shadow: 0 1px 3px rgba(0,0,0,0.08); }

.field { margin-bottom: 14px; }
.field label { display: block; font-size: 13px; font-weight: 600; margin-bottom: 6px; }
.field input, .field select {
  width: 100%; padding: 11px 13px; font-size: 15px; font-family: inherit;
  border: 1px solid var(--border); border-radius: var(--radius-ctrl);
  background: var(--bg-base); color: var(--ink-primary);
}
.field input:focus, .field select:focus { outline: 2px solid var(--accent); outline-offset: -1px; border-color: transparent; }
.form-error {
  display: none; background: var(--status-urgent-soft); color: var(--status-urgent);
  font-size: 13px; padding: 10px 14px; border-radius: var(--radius-ctrl); margin-bottom: 14px;
}
.form-error.visible { display: block; }
.form-error.info { background: var(--accent-soft); color: var(--accent); }
.modal-close {
  position: absolute; top: 14px; right: 16px; border: none; background: none;
  font-size: 20px; color: var(--ink-secondary); line-height: 1;
}
.modal { position: relative; }

/* ---------- Application ---------- */
.app-main { padding: 32px 0 80px; }
.app-header { display: flex; align-items: baseline; justify-content: space-between; margin-bottom: 24px; flex-wrap: wrap; gap: 12px; }
.app-header h1 { font-size: 24px; }
.app-header .date { color: var(--ink-secondary); font-size: 14px; }

.hero-grid { display: grid; grid-template-columns: 1.2fr 1fr 1fr; gap: 16px; margin-bottom: 32px; }
.stat-card {
  background: var(--bg-surface); border: 1px solid var(--border);
  border-radius: var(--radius-card); padding: 22px;
}
.stat-label { font-size: 13px; font-weight: 600; color: var(--ink-secondary); margin-bottom: 8px; }
.stat-value { font-size: 40px; font-weight: 650; letter-spacing: -0.02em; line-height: 1; }
.stat-value small { font-size: 18px; color: var(--ink-secondary); font-weight: 500; }
.stat-meta { margin-top: 10px; font-size: 13px; color: var(--ink-secondary); }
.stat-card.ok { border-color: color-mix(in srgb, var(--status-paid) 35%, transparent); }
.stat-card.ok .stat-value { color: var(--status-paid); font-size: 22px; display: flex; align-items: center; gap: 8px; }
.stat-card.alerte { border-color: color-mix(in srgb, var(--status-urgent) 45%, transparent); background: var(--status-urgent-soft); }
.stat-card.alerte .stat-value { color: var(--status-urgent); font-size: 22px; }

.panel {
  background: var(--bg-surface); border: 1px solid var(--border);
  border-radius: var(--radius-card); margin-bottom: 24px; overflow: hidden;
}
.panel-head {
  display: flex; align-items: center; justify-content: space-between;
  padding: 18px 22px; border-bottom: 1px solid var(--border);
}
.panel-head h2 { font-size: 16px; }
.panel-head .hint { font-size: 13px; color: var(--ink-secondary); }

/* Timeline */
.tl-day { border-bottom: 1px solid var(--border); }
.tl-day:last-child { border-bottom: none; }
.tl-day-head {
  display: flex; justify-content: space-between; align-items: baseline;
  padding: 10px 22px 4px; font-size: 12px; font-weight: 700;
  color: var(--ink-secondary); text-transform: uppercase; letter-spacing: 0.05em;
}
.tl-row {
  display: flex; align-items: center; gap: 14px;
  padding: 10px 22px; min-height: 48px;
  transition: background 0.15s ease;
}
.tl-row:hover { background: var(--bg-subtle); }
.tl-row.manual { border-left: 3px solid var(--accent); padding-left: 19px; }
.bill-logo {
  width: 34px; height: 34px; border-radius: 9px; flex-shrink: 0;
  display: flex; align-items: center; justify-content: center;
  font-size: 13px; font-weight: 700; color: #fff;
}
.tl-name { flex: 1; min-width: 0; }
.tl-name strong { display: block; font-size: 14px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.tl-name span { font-size: 12px; color: var(--ink-secondary); }
.tl-amount { font-size: 15px; font-weight: 600; font-variant-numeric: tabular-nums; }
.status-pill {
  font-size: 11px; font-weight: 700; padding: 4px 10px; border-radius: 99px;
  white-space: nowrap; letter-spacing: 0.02em;
}
.status-pill.paid   { background: var(--status-paid-soft);   color: var(--status-paid); }
.status-pill.soon   { background: var(--status-soon-soft);   color: var(--status-soon); }
.status-pill.urgent { background: var(--status-urgent-soft); color: var(--status-urgent); }
.status-pill.late   { background: var(--status-urgent);      color: #fff; }
.status-pill.calm   { background: var(--bg-subtle);          color: var(--ink-secondary); }

.empty-state { padding: 48px 22px; text-align: center; }
.empty-state .ghost-row {
  display: flex; align-items: center; gap: 14px; max-width: 380px;
  margin: 0 auto 20px; padding: 12px 16px; opacity: 0.45;
  border: 1px dashed var(--border); border-radius: var(--radius-card);
}
.empty-state p { color: var(--ink-secondary); font-size: 14px; margin-bottom: 18px; }

/* Répartition catégories */
.cat-list { padding: 10px 22px 18px; }
.cat-row { display: flex; align-items: center; gap: 12px; padding: 7px 0; font-size: 14px; }
.cat-dot { width: 10px; height: 10px; border-radius: 3px; flex-shrink: 0; }
.cat-name { flex: 1; }
.cat-bar-track { flex: 2; height: 6px; background: var(--bg-subtle); border-radius: 99px; overflow: hidden; }
.cat-bar { height: 100%; border-radius: 99px; }
.cat-amount { width: 100px; text-align: right; font-weight: 600; font-variant-numeric: tabular-nums; font-size: 14px; }

.two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; align-items: start; }

.toast {
  position: fixed; bottom: 24px; left: 50%; transform: translateX(-50%) translateY(80px);
  background: var(--ink-primary); color: var(--bg-base);
  padding: 12px 22px; border-radius: 10px; font-size: 14px; font-weight: 500;
  box-shadow: var(--shadow-float); z-index: 200; opacity: 0;
  transition: transform 0.25s ease, opacity 0.25s ease; pointer-events: none;
}
.toast.show { transform: translateX(-50%) translateY(0); opacity: 1; }

.user-chip { display: flex; align-items: center; gap: 10px; font-size: 14px; color: var(--ink-secondary); }
.user-avatar {
  width: 30px; height: 30px; border-radius: 99px; background: var(--accent);
  color: #fff; display: flex; align-items: center; justify-content: center;
  font-size: 12px; font-weight: 700;
}

@media (max-width: 860px) {
  .strip-items, .cards, .pricing, .hero-grid, .two-col { grid-template-columns: 1fr; }
  .hero { padding: 56px 0 40px; }
  .stat-value { font-size: 32px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { transition: none !important; animation: none !important; }
  html { scroll-behavior: auto; }
}