:root {
  --color-ink: #0F2A2A;
  --color-ink-light: #17403F;
  --color-sand: #F4EFE6;
  --color-sand-dim: #E7DFD0;
  --color-clay: #C97A4A;
  --color-sea: #4F8C88;
  --color-ink-text: #1B1B1B;

  --font-display: "Fraunces", Georgia, serif;
  --font-body: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;

  --radius-card: 16px;
  --space-1: 4px; --space-2: 8px; --space-3: 16px; --space-4: 24px; --space-5: 40px;
  --max-width: 480px;
}

* { box-sizing: border-box; }

html, body {
  margin: 0; padding: 0;
  background: var(--color-sand);
  color: var(--color-ink-text);
  font-family: var(--font-body);
  -webkit-font-smoothing: antialiased;
}

#app {
  max-width: var(--max-width);
  margin: 0 auto;
  min-height: 100vh;
  padding-bottom: env(safe-area-inset-bottom);
}

h1, h2, h3 { font-family: var(--font-display); font-weight: 600; color: var(--color-ink); margin: 0 0 var(--space-2); }
a { color: var(--color-sea); }

button, .btn {
  font-family: var(--font-body);
  border: none; border-radius: 999px;
  padding: 12px 20px; font-size: 16px; font-weight: 600; cursor: pointer;
}
.btn-primary { background: var(--color-clay); color: white; }
.btn-secondary { background: transparent; color: var(--color-ink); border: 1.5px solid var(--color-ink-light); }
.btn-block { display: block; width: 100%; text-align: center; margin-top: var(--space-2); text-decoration: none; }
.btn-text { background: none; color: var(--color-ink-light); text-decoration: underline; padding: 8px; }
.btn-danger { color: #B23A2E; }

.card { background: white; border-radius: var(--radius-card); padding: var(--space-3); box-shadow: 0 1px 3px rgba(15,42,42,0.08); margin-bottom: var(--space-3); }

button, a, input, select { min-height: 44px; }

@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; }
}

/* --- Barre supérieure --- */
.topbar {
  display: flex; align-items: center; gap: var(--space-2);
  padding: var(--space-3);
  background: var(--color-ink);
  color: white;
  position: sticky; top: 0; z-index: 10;
}
.topbar-title { color: white; margin: 0; font-size: 19px; flex: 1; text-align: center; }
.topbar-back, .icon-btn {
  background: none; color: white; font-size: 22px; padding: 0 8px; min-height: auto; line-height: 1;
}
.topbar-spacer, .topbar-action { min-width: 32px; display: inline-flex; justify-content: flex-end; }

/* --- Mise en page générale --- */
.screen { padding: var(--space-3); }
.screen-footer { padding: 0 var(--space-3) var(--space-4); text-align: center; }
.muted { color: #7A8C8B; }
.muted-small { color: #7A8C8B; font-size: 13px; }
.optional { font-weight: 400; color: #7A8C8B; font-size: 13px; }

/* --- Formulaires --- */
.form-card { display: flex; flex-direction: column; gap: var(--space-3); }
.form-card label { display: flex; flex-direction: column; gap: 6px; font-weight: 600; font-size: 14px; color: var(--color-ink); }
.form-card input, .form-card select, .form-card textarea {
  font-family: var(--font-body); font-size: 16px; font-weight: 400;
  border: 1.5px solid var(--color-sand-dim); border-radius: 10px; padding: 10px 12px;
  background: white;
}
.form-row { display: flex; gap: var(--space-2); }
.form-row label { flex: 1; }
.form-error { color: #B23A2E; font-size: 14px; min-height: 1em; }
.form-footer { text-align: center; color: #7A8C8B; }
.form-fieldset { border: 1.5px solid var(--color-sand-dim); border-radius: 10px; padding: var(--space-2) var(--space-3); }
.form-fieldset legend { font-weight: 600; padding: 0 4px; }
.checkbox-row, .radio-row { display: flex; align-items: center; gap: 8px; font-weight: 400; min-height: 36px; }
.checkbox-row input, .radio-row input { min-height: auto; width: auto; }
.copy-input { width: 100%; font-size: 13px; color: #555; padding: 8px; border-radius: 8px; border: 1px solid var(--color-sand-dim); }

/* --- Liste des voyages --- */
.trip-card { display: flex; align-items: center; gap: var(--space-3); text-decoration: none; color: inherit; }
.trip-card-avatar { width: 48px; height: 48px; border-radius: 12px; object-fit: cover; flex-shrink: 0; }
.trip-card-avatar-placeholder { display: flex; align-items: center; justify-content: center; background: var(--color-sea); color: white; font-weight: 700; }
.trip-card-info { flex: 1; min-width: 0; }
.trip-card-title { font-weight: 700; color: var(--color-ink); }
.trip-card-dates { font-size: 13px; color: #7A8C8B; }

.badge { font-size: 12px; font-weight: 700; padding: 3px 10px; border-radius: 999px; white-space: nowrap; }
.badge-organizer { background: #FCEBD9; color: var(--color-clay); }
.badge-traveler { background: #E3EEED; color: var(--color-sea); }
.badge-draft { background: #F0E6D8; color: #8A6D3B; }

/* --- Détail du voyage --- */
.trip-header { text-align: left; }
.trip-cover { width: 100%; height: 140px; object-fit: cover; border-radius: 10px; margin-bottom: var(--space-2); }
.trip-header-dates { color: #7A8C8B; margin: 0 0 var(--space-2); }
.trip-header-description { margin: 0; }
.trip-header-actions { display: flex; gap: var(--space-2); margin-top: var(--space-3); flex-wrap: wrap; }
.btn-upload { font-size: 13px; padding: 8px 14px; text-align: center; }

.tabs { display: flex; gap: var(--space-2); margin-bottom: var(--space-3); }
.tab { flex: 1; background: white; color: var(--color-ink-light); border: 1.5px solid var(--color-sand-dim); }
.tab-active { background: var(--color-ink); color: white; border-color: var(--color-ink); }

.step-card { display: flex; align-items: center; gap: var(--space-3); text-decoration: none; color: inherit; }
.step-card-date { text-align: center; min-width: 52px; flex-shrink: 0; }
.step-card-day { font-weight: 700; color: var(--color-ink); font-size: 14px; }
.step-card-time { font-size: 12px; color: #7A8C8B; }
.step-card-info { flex: 1; min-width: 0; }
.step-card-title { font-weight: 700; }
.step-card-location { font-size: 13px; color: #7A8C8B; }

.members-list { display: flex; flex-direction: column; gap: var(--space-2); margin-bottom: var(--space-3); }
.member-row { display: flex; align-items: center; gap: var(--space-2); background: white; border-radius: 12px; padding: 10px 14px; }
.member-name { flex: 1; font-weight: 600; }

.avatar-circle { width: 40px; height: 40px; border-radius: 50%; object-fit: cover; flex-shrink: 0; }
.avatar-small { width: 32px; height: 32px; }
.avatar-placeholder { display: flex; align-items: center; justify-content: center; background: var(--color-clay); color: white; font-weight: 700; font-size: 14px; }

.chips { display: flex; flex-wrap: wrap; gap: 6px; margin-top: var(--space-2); }
.chip { background: var(--color-sand-dim); border-radius: 999px; padding: 4px 12px; font-size: 13px; }

/* --- Détail d'étape + fil social --- */
.step-detail-card { text-align: left; }
.step-cover { width: 100%; height: 160px; object-fit: cover; border-radius: 10px; margin-bottom: var(--space-2); }
.step-detail-meta { display: flex; justify-content: space-between; align-items: center; color: #7A8C8B; font-size: 14px; margin-bottom: 4px; }
.step-detail-location { font-size: 14px; margin-bottom: var(--space-2); }

.feed-title { margin-top: var(--space-4); }
.feed-item-header { display: flex; align-items: center; gap: 8px; margin-bottom: 8px; }
.feed-item-author { font-weight: 700; flex: 1; }
.feed-item-delete { background: none; padding: 0; min-height: auto; font-size: 16px; opacity: 0.6; }
.feed-item-text { margin: 0; }
.feed-item-media { width: 100%; border-radius: 10px; max-height: 320px; object-fit: cover; }
.feed-item-link { word-break: break-all; }

.reactions-row { display: flex; flex-wrap: wrap; gap: 6px; margin-top: var(--space-2); align-items: center; }
.reaction-pill { background: var(--color-sand-dim); border-radius: 999px; padding: 2px 10px; font-size: 13px; min-height: 30px; }
.reaction-pill-active { background: var(--color-sea); color: white; }
.reaction-picker { display: flex; gap: 2px; margin-left: auto; }
.reaction-picker-btn { background: none; padding: 2px 4px; min-height: auto; font-size: 18px; opacity: 0.5; }
.reaction-picker-btn:hover { opacity: 1; }

.feed-form { flex-direction: row; flex-wrap: wrap; align-items: center; margin-top: var(--space-3); }
.feed-form select { flex-shrink: 0; }
.feed-form textarea, .feed-form input { flex: 1; min-width: 140px; }
.feed-form button { flex-shrink: 0; }

.invitation-row { display: flex; justify-content: space-between; align-items: center; }

/* --- Toast --- */
.toast {
  position: fixed; left: 50%; bottom: 24px; transform: translate(-50%, 20px);
  background: var(--color-ink); color: white; padding: 12px 20px; border-radius: 999px;
  font-size: 14px; opacity: 0; transition: opacity 0.25s, transform 0.25s;
  max-width: 90%; text-align: center; z-index: 100; box-shadow: 0 4px 12px rgba(0,0,0,0.2);
}
.toast-visible { opacity: 1; transform: translate(-50%, 0); }
.toast-success { background: var(--color-sea); }