/* =====================================================================
   WEB 213 — Composants réutilisables
   Verre dépoli, boutons, champs, sélecteurs, alertes.
   ===================================================================== */

/* ------------------------------------------------- Icônes inline (SVG) */
/* Toute icône insérée par icon() est calibrée ici ; les logos sont exclus
   car leur taille est fixée par leur propre classe. */
.btn > svg,
.badge > svg,
.alert > svg,
.benefits li > svg,
.lead > svg,
.trail > svg,
.icon-btn > svg,
.lang-switch__btn > svg {
  flex: 0 0 auto;
  width: 18px;
  height: 18px;
}
.badge > svg { width: 15px; height: 15px; }

/* ---------------------------------------------------------------- Verre */
.glass {
  background: var(--glass-bg);
  -webkit-backdrop-filter: blur(var(--glass-blur)) saturate(165%);
  backdrop-filter: blur(var(--glass-blur)) saturate(165%);
  border: 1px solid var(--glass-border);
  border-radius: var(--r-lg);
  box-shadow: var(--glass-shadow), var(--glass-inner);
}

.glass-soft {
  background: var(--glass-bg-soft);
  -webkit-backdrop-filter: blur(14px) saturate(140%);
  backdrop-filter: blur(14px) saturate(140%);
  border: 1px solid var(--glass-border);
  border-radius: var(--r-md);
}

/* ------------------------------------------------------------- En-tête */
.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  padding: 12px 0;
}
.site-header .container {
  display: flex;
  align-items: center;
  gap: 14px;
}
.site-header .bar {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 10px 16px;
  border-radius: var(--r-full);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--text);
  text-decoration: none;
  font-weight: 700;
}
.brand:hover { text-decoration: none; color: var(--text); }
.brand .logo { height: 30px; width: auto; color: var(--text); display: block; }

/* La marque ne doit jamais être écrasée par les boutons voisins. */
.site-header .brand { flex: 0 0 auto; }
.site-header .bar { min-width: 0; }

.header-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

/* ----------------------------------------------------------- Boutons */
.btn {
  --btn-bg: transparent;
  --btn-fg: var(--text);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 22px;
  min-height: 46px;
  font: inherit;
  font-weight: 600;
  line-height: 1;
  color: var(--btn-fg);
  background: var(--btn-bg);
  border: 1px solid transparent;
  border-radius: var(--r-full);
  cursor: pointer;
  text-decoration: none;
  white-space: nowrap;
  transition: transform var(--t-fast), background-color var(--t-fast),
              box-shadow var(--t-fast), border-color var(--t-fast), opacity var(--t-fast);
}
.btn:hover { text-decoration: none; transform: translateY(-1px); }
.btn:active { transform: translateY(0); }
.btn:disabled, .btn[aria-disabled="true"] { opacity: .55; cursor: not-allowed; transform: none; }

.btn-primary {
  --btn-bg: var(--primary);
  --btn-fg: var(--on-primary);
  box-shadow: 0 10px 26px -10px rgba(30, 143, 213, .85);
}
.btn-primary:hover { --btn-bg: var(--primary-hover); color: var(--on-primary); }

.btn-ghost {
  --btn-fg: var(--text-soft);
  border-color: var(--border);
  background: var(--glass-bg-soft);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
}
.btn-ghost:hover { --btn-fg: var(--text); border-color: var(--border-strong); }

.btn-block { width: 100%; }
.btn-sm { min-height: 38px; padding: 9px 16px; font-size: .9rem; }

.btn .spinner {
  width: 16px; height: 16px;
  border: 2px solid currentColor;
  border-top-color: transparent;
  border-radius: 50%;
  animation: spin .7s linear infinite;
  display: none;
}
.btn.is-loading .spinner { display: block; }
.btn.is-loading .btn-label { opacity: .7; }
@keyframes spin { to { transform: rotate(360deg); } }

/* --------------------------------------------- Bouton icône (thème…) */
.icon-btn {
  display: inline-grid;
  place-items: center;
  width: 42px; height: 42px;
  padding: 0;
  color: var(--text-soft);
  background: var(--glass-bg-soft);
  border: 1px solid var(--border);
  border-radius: var(--r-full);
  cursor: pointer;
  transition: color var(--t-fast), border-color var(--t-fast), background-color var(--t-fast);
}
.icon-btn:hover { color: var(--primary); border-color: var(--brand-300); }
.icon-btn svg { width: 20px; height: 20px; }

/* Icônes soleil / lune : une seule visible selon le thème */
.theme-toggle .i-moon { display: none; }
[data-theme="dark"] .theme-toggle .i-sun  { display: none; }
[data-theme="dark"] .theme-toggle .i-moon { display: block; }
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .theme-toggle .i-sun  { display: none; }
  :root:not([data-theme="light"]) .theme-toggle .i-moon { display: block; }
}

/* ------------------------------------------------ Sélecteur de langue */
.lang-switch { position: relative; }

.lang-switch__btn {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  height: 42px;
  padding: 0 14px;
  font: inherit;
  font-weight: 600;
  font-size: .9rem;
  color: var(--text-soft);
  background: var(--glass-bg-soft);
  border: 1px solid var(--border);
  border-radius: var(--r-full);
  cursor: pointer;
}
.lang-switch__btn:hover { color: var(--primary); border-color: var(--brand-300); }
.lang-switch__btn svg { width: 18px; height: 18px; }
.lang-switch__btn .chev { transition: transform var(--t-fast); width: 14px; }
.lang-switch[data-open="true"] .chev { transform: rotate(180deg); }

.lang-switch__menu {
  position: absolute;
  top: calc(100% + 8px);
  inset-inline-end: 0;
  min-width: 170px;
  padding: 6px;
  list-style: none;
  margin: 0;
  z-index: 60;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-6px);
  transition: opacity var(--t-fast), transform var(--t-fast), visibility var(--t-fast);
}
.lang-switch[data-open="true"] .lang-switch__menu {
  opacity: 1; visibility: visible; transform: translateY(0);
}
.lang-switch__menu a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 10px 12px;
  border-radius: var(--r-sm);
  color: var(--text-soft);
  font-size: .93rem;
  font-weight: 600;
}
.lang-switch__menu a:hover { background: var(--bg-sunken); color: var(--text); text-decoration: none; }
.lang-switch__menu a[aria-current="true"] { color: var(--primary); }
.lang-switch__menu a[aria-current="true"]::after { content: "✓"; }

/* ------------------------------------------------------------ Champs */
.field { margin-bottom: 18px; }

.field > label {
  display: block;
  margin-bottom: 7px;
  font-size: .9rem;
  font-weight: 600;
  color: var(--text-soft);
}
.field .req { color: var(--err-500); }

.control { position: relative; display: flex; align-items: center; }

.control .lead {
  position: absolute;
  inset-inline-start: 14px;
  display: grid;
  place-items: center;
  color: var(--text-muted);
  pointer-events: none;
}
.control .lead svg { width: 19px; height: 19px; }

.input {
  width: 100%;
  min-height: 52px;
  padding: 14px 16px 14px 44px;
  font: inherit;
  color: var(--text);
  background: var(--field-bg);
  border: 1px solid var(--field-border);
  border-radius: var(--r-md);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
  transition: border-color var(--t-fast), box-shadow var(--t-fast), background-color var(--t-fast);
}
html[dir="rtl"] .input { padding: 14px 44px 14px 16px; }

.input::placeholder { color: var(--text-muted); opacity: .8; }
.input:hover { border-color: var(--border-strong); }
.input:focus {
  outline: none;
  border-color: var(--field-focus);
  box-shadow: 0 0 0 4px var(--ring);
  background: var(--bg-elevated);
}
.input[aria-invalid="true"] { border-color: var(--err-500); }
.input[aria-invalid="true"]:focus { box-shadow: 0 0 0 4px rgba(225, 73, 63, .18); }
.control.is-valid .input { border-color: var(--ok-500); }

/* Bouton œil du mot de passe / suffixes */
.control .trail {
  position: absolute;
  inset-inline-end: 8px;
  display: grid;
  place-items: center;
  width: 38px; height: 38px;
  padding: 0;
  color: var(--text-muted);
  background: none;
  border: 0;
  border-radius: var(--r-sm);
  cursor: pointer;
}
.control .trail:hover { color: var(--primary); }
.control .trail svg { width: 19px; height: 19px; }
.control:has(.trail) .input { padding-inline-end: 52px; }

/* Préfixe pays du téléphone */
.control .prefix {
  position: absolute;
  inset-inline-start: 42px;
  font-weight: 600;
  color: var(--text-muted);
  pointer-events: none;
  font-variant-numeric: tabular-nums;
}
.control.has-prefix .input { padding-inline-start: 92px; }

.hint {
  display: block;
  margin-top: 6px;
  font-size: .82rem;
  color: var(--text-muted);
}
.hint.error { color: var(--err-500); font-weight: 600; }
.hint.ok    { color: var(--ok-500);  font-weight: 600; }

/* Case à cocher */
.check {
  display: flex;
  align-items: flex-start;
  gap: 11px;
  font-size: .9rem;
  color: var(--text-soft);
  cursor: pointer;
}
.check input {
  appearance: none;
  flex: 0 0 auto;
  width: 21px; height: 21px;
  margin: 1px 0 0;
  background: var(--field-bg);
  border: 1.5px solid var(--field-border);
  border-radius: 7px;
  cursor: pointer;
  transition: background-color var(--t-fast), border-color var(--t-fast);
}
.check input:checked {
  background: var(--primary) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23fff' stroke-width='3.4' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='20 6 9 17 4 12'/%3E%3C/svg%3E") center/14px no-repeat;
  border-color: var(--primary);
}
.check input:focus-visible { outline: 3px solid var(--field-focus); outline-offset: 2px; }

/* ------------------------------------------- Jauge de robustesse */
.strength { margin-top: 10px; transition: opacity var(--t-base); }
.strength[data-score="0"] { opacity: 0; }
.strength__bars { display: flex; gap: 5px; }
.strength__bars i {
  flex: 1;
  height: 5px;
  border-radius: var(--r-full);
  background: var(--border);
  transition: background-color var(--t-base);
}
.strength__label {
  display: block;
  margin-top: 6px;
  font-size: .78rem;
  font-weight: 600;
  color: var(--text-muted);
}
.strength[data-score="1"] .strength__bars i:nth-child(-n+1) { background: var(--err-500); }
.strength[data-score="2"] .strength__bars i:nth-child(-n+2) { background: var(--warn-500); }
.strength[data-score="3"] .strength__bars i:nth-child(-n+3) { background: var(--brand-400); }
.strength[data-score="4"] .strength__bars i                 { background: var(--ok-500); }
.strength[data-score="1"] .strength__label { color: var(--err-500); }
.strength[data-score="2"] .strength__label { color: var(--warn-500); }
.strength[data-score="3"] .strength__label { color: var(--brand-500); }
.strength[data-score="4"] .strength__label { color: var(--ok-500); }

/* ---------------------------------------------------------- Alertes */
.alert {
  display: flex;
  align-items: flex-start;
  gap: 11px;
  padding: 14px 16px;
  margin-bottom: 18px;
  font-size: .92rem;
  border-radius: var(--r-md);
  border: 1px solid;
}
.alert svg { flex: 0 0 auto; width: 19px; height: 19px; margin-top: 2px; }
.alert-success { color: #0B6B46; background: rgba(22, 164, 107, .12); border-color: rgba(22, 164, 107, .34); }
.alert-error   { color: #98261E; background: rgba(225, 73, 63, .12);  border-color: rgba(225, 73, 63, .34); }
.alert-info    { color: var(--brand-800); background: rgba(30, 143, 213, .10); border-color: rgba(30, 143, 213, .30); }
[data-theme="dark"] .alert-success { color: #67E3AE; }
[data-theme="dark"] .alert-error   { color: #FF9E96; }
[data-theme="dark"] .alert-info    { color: var(--brand-200); }

/* ----------------------------------------------------------- Divers */
.divider {
  display: flex;
  align-items: center;
  gap: 14px;
  margin: 22px 0;
  color: var(--text-muted);
  font-size: .82rem;
}
.divider::before, .divider::after {
  content: "";
  flex: 1;
  height: 1px;
  background: var(--border);
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 11px;
  font-size: .76rem;
  font-weight: 700;
  letter-spacing: .02em;
  border-radius: var(--r-full);
  color: var(--brand-700);
  background: rgba(30, 143, 213, .12);
  border: 1px solid rgba(30, 143, 213, .24);
}
[data-theme="dark"] .badge { color: var(--brand-200); }

/* ---- En-tête sur petit écran ---------------------------------------- */
@media (max-width: 700px) {
  .site-header { padding: 8px 0; }
  .site-header .bar { padding: 8px 10px; gap: 8px; }
  .site-header .brand .logo { height: 25px; }
  .header-actions { gap: 6px; }
  .lang-switch__btn, .icon-btn { height: 38px; width: auto; }
  .icon-btn { width: 38px; }
  .lang-switch__btn { padding: 0 11px; }
}

/* Sous 580 px, « Se connecter » cède la place : le bouton principal et
   le pied de page suffisent à retrouver la connexion. */
.lbl-short { display: none; }

@media (max-width: 580px) {
  .site-header .header-actions > .btn-ghost { display: none; }
  .site-header .header-actions > .btn { padding-inline: 14px; font-size: .86rem; }
  /* Le libellé du bouton principal raccourcit plutôt que de déborder. */
  .lbl-full  { display: none; }
  .lbl-short { display: inline; }
}

.site-footer {
  padding: 28px 0;
  margin-top: 40px;
  font-size: .86rem;
  color: var(--text-muted);
  text-align: center;
}