/* ============================================================
   GestAtPhone — Vitrine publique
   Thème "Indigo Circuit"
   ============================================================ */

:root {
  --primary: #4F46E5;
  --primary-dark: #4338CA;
  --accent: #34D399;
  --accent-dark: #16A34A;
  --ink: #0F172A;
  --ink-soft: #1E293B;
  --gray-700: #475569;
  --gray-500: #64748B;
  --gray-300: #CBD5E1;
  --gray-200: #E2E8F0;
  --gray-100: #F1F5F9;
  --tint: #EEF2FF;
  --bg: #FFFFFF;
  --danger: #DC2626;
  --radius-sm: 8px;
  --radius: 14px;
  --radius-lg: 22px;
  --shadow: 0 1px 2px rgba(15,23,42,0.06), 0 8px 24px rgba(15,23,42,0.06);
  --shadow-lg: 0 12px 40px rgba(79,70,229,0.16);
  --max-w: 1160px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  color: var(--ink);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 {
  font-family: 'Manrope', sans-serif;
  font-weight: 800;
  letter-spacing: -0.02em;
  margin: 0;
  color: var(--ink);
}

p { margin: 0; line-height: 1.6; }
a { text-decoration: none; color: inherit; }
img { max-width: 100%; display: block; }

.container {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 24px;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: 'Inter', sans-serif;
  font-weight: 600;
  font-size: 15px;
  padding: 13px 24px;
  border-radius: var(--radius-sm);
  border: none;
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.15s ease;
  white-space: nowrap;
}
.btn-primary {
  background: var(--primary);
  color: #fff;
  box-shadow: var(--shadow-lg);
}
.btn-primary:hover { background: var(--primary-dark); transform: translateY(-1px); }
.btn-ghost {
  background: transparent;
  color: var(--ink);
  border: 1px solid var(--gray-200);
}
.btn-ghost:hover { border-color: var(--primary); color: var(--primary); }
.btn-lg { padding: 16px 30px; font-size: 16px; }
.btn-block { width: 100%; }
.btn:disabled { opacity: 0.6; cursor: not-allowed; transform: none; }

/* ---------- Header / Nav ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--gray-200);
}
.site-header .container {
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.brand { display: flex; align-items: center; gap: 10px; }
.brand svg { flex-shrink: 0; }
.brand-word {
  font-family: 'Manrope', sans-serif;
  font-weight: 800;
  font-size: 20px;
  color: var(--ink);
}
.brand-word .at { color: var(--accent-dark); font-style: italic; }

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
}
.nav-links a:not(.btn) {
  font-size: 14.5px;
  font-weight: 600;
  color: var(--gray-700);
}
.nav-links a:not(.btn):hover { color: var(--primary); }

.nav-actions { display: flex; align-items: center; gap: 18px; }

.nav-toggle { display: none; background: none; border: none; cursor: pointer; padding: 8px; }
.nav-toggle span { display: block; width: 22px; height: 2px; background: var(--ink); margin: 4px 0; border-radius: 2px; }

/* ---------- Footer ---------- */
.site-footer {
  background: var(--ink);
  color: var(--gray-300);
  padding: 56px 0 28px;
  margin-top: 100px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 32px;
  padding-bottom: 36px;
  border-bottom: 1px solid rgba(255,255,255,0.1);
}
.footer-col h4 {
  color: #fff;
  font-size: 13px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 14px;
}
.footer-col a, .footer-col p {
  display: block;
  font-size: 14px;
  color: var(--gray-300);
  margin-bottom: 10px;
}
.footer-col a:hover { color: #fff; }
.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 24px;
  font-size: 13px;
  color: #64748B;
  flex-wrap: wrap;
  gap: 12px;
}

/* ---------- Generic sections ---------- */
.section { padding: 96px 0; }
.section-tight { padding: 64px 0; }
.eyebrow {
  display: inline-block;
  font-size: 12.5px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--primary);
  background: var(--tint);
  padding: 6px 14px;
  border-radius: 999px;
  margin-bottom: 18px;
}
.section-title { font-size: 36px; line-height: 1.15; }
.section-sub { font-size: 17px; color: var(--gray-500); margin-top: 14px; max-width: 640px; }
.center { text-align: center; margin-left: auto; margin-right: auto; }

/* ---------- Cards ---------- */
.card {
  background: #fff;
  border: 1px solid var(--gray-200);
  border-radius: var(--radius);
  padding: 26px;
}

/* ---------- Forms ---------- */
.field { display: flex; flex-direction: column; gap: 6px; margin-bottom: 18px; }
.field label { font-size: 13.5px; font-weight: 600; color: var(--ink-soft); }
.field input, .field select {
  font-family: inherit;
  font-size: 15px;
  padding: 12px 14px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--gray-200);
  background: #fff;
  color: var(--ink);
  outline: none;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}
.field input:focus, .field select:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(79,70,229,0.15);
}
.field-hint { font-size: 12.5px; color: var(--gray-500); }
.field-error { font-size: 12.5px; color: var(--danger); display: none; }
.form-error-banner {
  display: none;
  background: #FEF2F2;
  border: 1px solid #FECACA;
  color: #991B1B;
  font-size: 14px;
  padding: 12px 16px;
  border-radius: var(--radius-sm);
  margin-bottom: 20px;
}

/* ---------- Utility ---------- */
.mobile-only { display: none; }

@media (max-width: 880px) {
  .nav-links { display: none; }
  .nav-toggle { display: block; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .section { padding: 64px 0; }
  .section-title { font-size: 28px; }
}