/* ABOUTME: Thème visuel STP — palette bleu professionnel, police système, composants modernes.
   ABOUTME: Surcharge Bootstrap 5.3 (vendored) ; modes clair/sombre via data-bs-theme. */

:root,
[data-bs-theme="light"] {
  --stp-primary: #2563EB;
  --stp-primary-dark: #1D4ED8;
  --stp-accent: #0EA5E9;
  --bs-primary: var(--stp-primary);
  --bs-primary-rgb: 37, 99, 235;
  --bs-link-color: var(--stp-primary);
  --bs-link-color-rgb: 37, 99, 235;
  --bs-link-hover-color: var(--stp-primary-dark);
  --bs-body-bg: #F8FAFC;
  --bs-body-color: #0F172A;
  --bs-secondary-color: #475569;
  --bs-border-color: #E2E8F0;
  --bs-border-radius: .6rem;
  --bs-font-sans-serif: "Inter", system-ui, -apple-system, "Segoe UI", Roboto,
    "Helvetica Neue", Arial, "Noto Sans", sans-serif;
}

[data-bs-theme="dark"] {
  --stp-primary: #3B82F6;
  --stp-primary-dark: #2563EB;
  --stp-accent: #38BDF8;
  --bs-primary: var(--stp-primary);
  --bs-primary-rgb: 59, 130, 246;
  --bs-link-color: #93C5FD;
  --bs-link-color-rgb: 147, 197, 253;
  --bs-link-hover-color: #BFDBFE;
  --bs-body-bg: #0B1220;
  --bs-body-color: #E2E8F0;
  --bs-border-color: #1E293B;
  --bs-tertiary-bg: #111A2E;
}

body {
  font-family: var(--bs-font-sans-serif);
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5, h6, .navbar-brand { letter-spacing: -0.01em; }

/* Navbar — bleu profond en dégradé (texte clair forcé via data-bs-theme="dark") */
.stp-navbar {
  background: linear-gradient(90deg, #1E3A8A 0%, #2563EB 100%);
  box-shadow: 0 1px 3px rgba(2, 6, 23, .14);
}
[data-bs-theme="dark"] .stp-navbar {
  background: linear-gradient(90deg, #0B1220 0%, #1E293B 100%);
  border-bottom: 1px solid var(--bs-border-color);
}
.stp-navbar .navbar-brand { font-weight: 700; }
.stp-navbar .nav-link { font-weight: 500; }

/* Bouton bascule de thème */
.stp-theme-toggle {
  background: transparent;
  border: 0;
  line-height: 1;
  font-size: 1.05rem;
  padding: .4rem .6rem;
}

/* Boutons */
.btn { border-radius: .55rem; font-weight: 500; }
.btn-primary {
  --bs-btn-bg: var(--stp-primary);
  --bs-btn-border-color: var(--stp-primary);
  --bs-btn-hover-bg: var(--stp-primary-dark);
  --bs-btn-hover-border-color: var(--stp-primary-dark);
  --bs-btn-active-bg: var(--stp-primary-dark);
  --bs-btn-active-border-color: var(--stp-primary-dark);
  --bs-btn-disabled-bg: var(--stp-primary);
  --bs-btn-disabled-border-color: var(--stp-primary);
}
.btn-outline-primary {
  --bs-btn-color: var(--stp-primary);
  --bs-btn-border-color: var(--stp-primary);
  --bs-btn-hover-bg: var(--stp-primary);
  --bs-btn-hover-border-color: var(--stp-primary);
  --bs-btn-active-bg: var(--stp-primary);
  --bs-btn-active-border-color: var(--stp-primary);
}

/* Cartes — coins arrondis, ombre douce */
.card {
  border: 1px solid var(--bs-border-color);
  border-radius: .9rem;
  box-shadow: 0 1px 2px rgba(2, 6, 23, .05), 0 10px 25px -15px rgba(2, 6, 23, .18);
}

/* Champs — focus en bleu marque */
.form-control, .form-select { border-radius: .55rem; }
.form-control:focus, .form-select:focus {
  border-color: var(--stp-primary);
  box-shadow: 0 0 0 .2rem rgba(var(--bs-primary-rgb), .22);
}

/* Tables */
.table { --bs-table-hover-bg: rgba(var(--bs-primary-rgb), .06); }
.table > thead th { font-weight: 600; color: var(--bs-secondary-color); }

/* Liens : soulignement seulement au survol */
a { text-decoration: none; }
a:hover { text-decoration: underline; }

/* Accents utilitaires */
.text-primary { color: var(--stp-primary) !important; }
.bg-primary { background-color: var(--stp-primary) !important; }

/* Alerts un peu plus douces */
.alert { border-radius: .7rem; }

/* Landing (page vitrine) */
.stp-hero {
  background: linear-gradient(135deg, #1E3A8A 0%, #2563EB 55%, #0EA5E9 100%);
  color: #fff;
  border-radius: 1.1rem;
}
.stp-hero .lead { color: rgba(255, 255, 255, .9); }
.stp-feature-icon {
  width: 2.6rem; height: 2.6rem; border-radius: .7rem;
  display: inline-flex; align-items: center; justify-content: center;
  background: rgba(var(--bs-primary-rgb), .12);
  color: var(--stp-primary); font-size: 1.3rem;
}
.stp-step-num {
  width: 2rem; height: 2rem; border-radius: 50%;
  display: inline-flex; align-items: center; justify-content: center;
  background: var(--stp-primary); color: #fff; font-weight: 600;
}