/* ============================================================
   OKALM — Pages de téléchargement des applications Android
   Feuille de style partagée par :
     · telecharger-au-calme.html   (parents / élèves)
     · telecharger-kalmeurs.html   (professeurs / répétiteurs)

   Principes tenus :
     · aucune police distante — pile de polices système, comme les
       deux applications Flutter qui n'embarquent aucune police ;
     · aucun appel réseau autre que same-origin ;
     · rendu mobile d'abord (base pensée pour 360 px).

   Reprend les couleurs réelles des applications :
     · Au calme  : primaire #337843  (lib/core/constants/app_colors.dart:6)
     · Kalmeurs  : primaire #F47A1F  (lib/core/constants/app_colors.dart:6)

   Fichier créé pour la Phase 3 — aucun déploiement effectué.
   ============================================================ */

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

:root {
  /* Couleurs neutres, communes aux deux pages */
  --ink:        #1F2937;   /* texte principal  — app_colors.dart:23 */
  --ink-muted:  #6B7280;   /* texte secondaire — app_colors.dart:24 */
  --ink-light:  #9CA3AF;   /* texte discret    — app_colors.dart:25 */
  --border:     #E5E7EB;   /* bordures         — app_colors.dart:28 */
  --surface:    #FFFFFF;
  --bg:         #F8FAF9;
  --radius:     12px;
  --radius-lg:  20px;
  --shadow:     0 4px 24px rgba(0, 0, 0, .08);
  --shadow-sm:  0 1px 2px rgba(0, 0, 0, .04), 0 1px 3px rgba(0, 0, 0, .06);
  --font: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto,
          'Helvetica Neue', Arial, sans-serif;
}

/* Thème « Au calme » — parents d'élèves */
.theme-au-calme {
  --primary:       #337843;
  --primary-dark:  #0D6E4F;
  --primary-soft:  #DDEFE3;   /* app_colors.dart:9  */
  --primary-deep:  #E9F5EE;
  --on-primary:    #FFFFFF;
  --ring:          rgba(51, 120, 67, .30);
  --shadow-brand:  0 8px 24px -4px rgba(51, 120, 67, .38),
                   0 4px 12px -2px rgba(51, 120, 67, .20);
}

/* Thème « Kalmeurs » — professeurs et répétiteurs */
.theme-kalmeurs {
  --primary:       #F47A1F;
  --primary-dark:  #C25E0F;
  --primary-soft:  #FFE8D6;   /* app_colors.dart:9  */
  --primary-deep:  #FFF4ED;
  --on-primary:    #FFFFFF;
  --ring:          rgba(244, 122, 31, .30);
  --shadow-brand:  0 8px 24px -4px rgba(244, 122, 31, .38),
                   0 4px 12px -2px rgba(244, 122, 31, .20);
}

html { -webkit-text-size-adjust: 100%; }

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--ink);
  line-height: 1.55;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 28px 16px calc(44px + env(safe-area-inset-bottom));
}

.wrap {
  width: 100%;
  max-width: 540px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
}

/* ---------------------------------------------------------- En-tête */

.logo {
  width: 88px;
  height: 88px;
  border-radius: 20px;
  display: block;
  background: var(--surface);
  box-shadow: var(--shadow-brand);
  margin-bottom: 18px;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  background: var(--primary-soft);
  color: var(--primary-dark);
  border: 1px solid var(--ring);
  font-size: 11.5px;
  font-weight: 700;
  letter-spacing: .04em;
  text-transform: uppercase;
  padding: 5px 12px;
  border-radius: 999px;
  margin-bottom: 14px;
}

.badge::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--primary);
  flex-shrink: 0;
}

h1 {
  font-size: 27px;
  font-weight: 900;
  letter-spacing: -.02em;
  line-height: 1.2;
  text-align: center;
  margin-bottom: 10px;
}

@media (min-width: 480px) { h1 { font-size: 31px; } }

.promise {
  font-size: 15.5px;
  color: var(--ink-muted);
  text-align: center;
  max-width: 450px;
  line-height: 1.6;
  margin-bottom: 24px;
}

.promise strong { color: var(--ink); font-weight: 700; }

/* ---------------------------------------------------------- Carte de version */

.version-card {
  width: 100%;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px 18px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  box-shadow: var(--shadow-sm);
  margin-bottom: 16px;
}

.version-meta { display: flex; flex-direction: column; gap: 2px; }

.version-title {
  font-size: 15px;
  font-weight: 700;
  color: var(--ink);
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.version-compat { font-size: 12.5px; color: var(--ink-muted); }

.version-pill {
  font-size: 11.5px;
  font-weight: 700;
  color: var(--primary-dark);
  background: var(--primary-deep);
  border: 1px solid var(--ring);
  padding: 4px 10px;
  border-radius: 8px;
  white-space: nowrap;
}

/* ---------------------------------------------------------- Appel à l'action */

.cta-block {
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  margin-bottom: 14px;
}

.btn-download {
  width: 100%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 100%);
  color: var(--on-primary);
  text-decoration: none;
  font-size: 17px;
  font-weight: 800;
  padding: 17px 26px;
  border-radius: 14px;
  border: none;
  cursor: pointer;
  box-shadow: var(--shadow-brand);
  transition: transform .15s ease, box-shadow .15s ease;
}

.btn-download:hover { transform: translateY(-2px); }
.btn-download:active { transform: translateY(0); }
.btn-download svg { width: 21px; height: 21px; flex-shrink: 0; }

/* État affiché tant que le fichier APK n'est pas publié */
.btn-download.is-placeholder {
  background: repeating-linear-gradient(
    135deg, #F3F4F6 0 12px, #E5E7EB 12px 24px
  );
  color: #4B5563;
  box-shadow: none;
  border: 2px dashed #9CA3AF;
  cursor: not-allowed;
}

.microcopy {
  font-size: 12.5px;
  color: var(--ink-light);
  text-align: center;
  margin-top: 11px;
  line-height: 1.5;
  max-width: 440px;
}

/* ---------------------------------------------------------- Blocs génériques */

.card {
  width: 100%;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 22px 20px;
  box-shadow: var(--shadow-sm);
  margin-bottom: 16px;
}

.card__title {
  font-size: 15.5px;
  font-weight: 800;
  color: var(--ink);
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 9px;
}

.card__title svg { width: 18px; height: 18px; flex-shrink: 0; color: var(--primary); }

/* ---------------------------------------------------------- Avantages */

.avantages { display: flex; flex-direction: column; gap: 15px; }

.avantage { display: flex; gap: 13px; align-items: flex-start; }

.avantage__icon {
  width: 34px;
  height: 34px;
  border-radius: 10px;
  background: var(--primary-deep);
  color: var(--primary-dark);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.avantage__icon svg { width: 18px; height: 18px; }

.avantage h3 { font-size: 14px; font-weight: 700; margin-bottom: 2px; }

.avantage p { font-size: 13px; color: var(--ink-muted); line-height: 1.5; }

/* ---------------------------------------------------------- Étapes d'installation */

.steps { display: flex; flex-direction: column; gap: 15px; }

.step { display: flex; gap: 13px; align-items: flex-start; }

.step__num {
  width: 27px;
  height: 27px;
  border-radius: 8px;
  background: var(--primary-deep);
  border: 1px solid var(--ring);
  color: var(--primary-dark);
  font-size: 12.5px;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  margin-top: 1px;
}

.step h3 { font-size: 13.5px; font-weight: 700; margin-bottom: 2px; }

.step p { font-size: 12.5px; color: var(--ink-muted); line-height: 1.5; }

.step code {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 11.5px;
  background: #F3F4F6;
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 1px 5px;
  color: #374151;
}

/* ---------------------------------------------------------- Encadrés d'information */

.notice {
  margin-top: 16px;
  padding: 13px 15px;
  background: var(--primary-deep);
  border: 1px solid var(--border);
  border-left: 3px solid var(--primary);
  border-radius: 10px;
  font-size: 12.5px;
  color: #4B5563;
  line-height: 1.55;
}

.notice strong { color: var(--ink); }

/* ---------------------------------------------------------- Prérequis (page Kalmeurs) */

.prerequis { display: flex; flex-direction: column; gap: 12px; }

.prerequis__item {
  display: flex;
  gap: 11px;
  align-items: flex-start;
  font-size: 13px;
  color: #374151;
  line-height: 1.5;
}

.prerequis__item svg {
  width: 16px;
  height: 16px;
  color: var(--primary);
  flex-shrink: 0;
  margin-top: 2px;
}

.prerequis__item strong { font-weight: 700; color: var(--ink); }

/* ---------------------------------------------------------- Carte mise à jour */

.update-card {
  width: 100%;
  border: 1px dashed var(--border);
  border-radius: var(--radius);
  padding: 14px 18px;
  text-align: center;
  margin-bottom: 16px;
  background: transparent;
}

.update-card p { font-size: 12.5px; color: var(--ink-muted); line-height: 1.55; }

.update-card strong { color: var(--ink); }

/* ---------------------------------------------------------- Contact */

.contact-block {
  width: 100%;
  text-align: center;
  margin-top: 4px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  align-items: center;
}

.contact-link {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  color: var(--ink-muted);
  text-decoration: none;
  font-size: 13.5px;
  font-weight: 600;
  padding: 9px 14px;
  border-radius: 8px;
  transition: color .15s ease, background .15s ease;
}

.contact-link:hover { color: var(--primary-dark); background: var(--primary-deep); }

.contact-link svg { width: 16px; height: 16px; fill: currentColor; flex-shrink: 0; }

/* ---------------------------------------------------------- Pied de page */

.footer {
  margin-top: 30px;
  font-size: 11.5px;
  color: var(--ink-light);
  text-align: center;
  line-height: 1.7;
}

.footer a { color: var(--ink-muted); text-decoration: none; }
.footer a:hover { text-decoration: underline; }