:root {
  color-scheme: light dark;
  --bg: #0b0d12;
  --bg-alt: #12151c;
  --fg: #eef0f4;
  --muted: #9399a8;
  --card: #161a22;
  --card-hover: #1c212b;
  --accent: #5b8cff;
  --accent-2: #7c5cff;
  --success: #34d399;
  --warning: #eab308;
  --danger: #f0596b;
  --border: #262b36;
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --vinted: #09b1a5;
  --leboncoin: #ff6e14;
  --marketplace: #1877f2;
}

@media (prefers-color-scheme: light) {
  :root {
    --bg: #f3f5f9;
    --bg-alt: #eaedf3;
    --fg: #171a21;
    --muted: #6b7280;
    --card: #ffffff;
    --card-hover: #f8f9fc;
    --border: #e2e5ec;
  }
}

* { box-sizing: border-box; }

html {
  min-height: 100%;
  background: var(--bg);
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  background:
    radial-gradient(1200px 500px at 10% -10%, rgba(91, 140, 255, 0.12), transparent),
    radial-gradient(1000px 400px at 100% 0%, rgba(124, 92, 255, 0.10), transparent),
    var(--bg);
  background-attachment: fixed;
  color: var(--fg);
  line-height: 1.5;
}

/* --- Navigation --- */
.topnav {
  display: flex;
  gap: 1.75rem;
  align-items: center;
  padding: 1rem 1.75rem;
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  background: color-mix(in srgb, var(--bg) 85%, transparent);
  backdrop-filter: blur(10px);
  z-index: 10;
}

.topnav .brand {
  font-weight: 800;
  font-size: 1.05rem;
  margin-right: auto;
  letter-spacing: -0.01em;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.brand-logo {
  width: 28px;
  height: 28px;
  border-radius: 8px;
  display: block;
}

.topnav a {
  color: var(--muted);
  text-decoration: none;
  font-weight: 500;
  font-size: 0.9rem;
  padding: 0.35rem 0;
  border-bottom: 2px solid transparent;
  transition: color 0.15s ease, border-color 0.15s ease;
}
.topnav a:hover { color: var(--fg); }
.topnav a.is-active { color: var(--fg); border-bottom-color: var(--accent); }

.lang-switch {
  display: flex;
  gap: 0.35rem;
  margin-left: 0.5rem;
  padding-left: 1rem;
  border-left: 1px solid var(--border);
}
.lang-link {
  font-size: 0.75rem;
  font-weight: 700;
  padding: 0.15rem 0.5rem;
  border-radius: 999px;
  border: 1px solid var(--border);
  color: var(--muted);
  text-decoration: none;
}
.lang-link:hover { color: var(--fg); }

.user-email {
  font-size: 0.8rem;
  color: var(--muted);
  margin-left: 0.5rem;
}

/* --- Auth pages --- */
.auth-page {
  display: flex;
  justify-content: center;
  padding-top: 2rem;
}
.auth-card { width: 100%; max-width: 400px; }
.auth-card form button { width: 100%; margin-top: 0.5rem; }

.settings-block { display: block; margin-bottom: 1.5rem; }
.lang-link.is-active { color: white; background: var(--accent); border-color: var(--accent); }

/* --- Carte "Passer Premium" --- */
.premium-card {
  border: 1px solid color-mix(in srgb, var(--accent) 45%, var(--border));
  background:
    linear-gradient(160deg, color-mix(in srgb, var(--accent) 10%, transparent), transparent 60%),
    var(--card);
}

.premium-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 1.25rem;
}
.premium-title { font-size: 1.1rem; font-weight: 700; letter-spacing: -0.01em; }
.premium-hint { margin-top: 0.35rem; max-width: 40ch; }

.premium-price { text-align: right; flex-shrink: 0; }
.premium-price-amount {
  display: block;
  font-size: 1.8rem;
  font-weight: 800;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  line-height: 1;
}
.premium-price-note { font-size: 0.72rem; color: var(--muted); }

.premium-steps {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
  margin-bottom: 1.25rem;
}
.premium-step {
  display: flex;
  align-items: baseline;
  gap: 0.65rem;
  font-size: 0.88rem;
}
.premium-step-num {
  flex-shrink: 0;
  width: 1.4rem;
  height: 1.4rem;
  border-radius: 50%;
  background: color-mix(in srgb, var(--accent) 20%, transparent);
  color: var(--accent);
  font-weight: 700;
  font-size: 0.78rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}
.premium-email {
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 0.1rem 0.4rem;
  font-size: 0.85rem;
}

.premium-cta { font-size: 0.95rem; padding: 0.65rem 1.4rem; }

/* --- Emplacements publicitaires (AdSense) : réservés, vides tant qu'aucun
   code n'est fourni. */
.ad-slot {
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px dashed var(--border);
  border-radius: var(--radius-md);
  color: var(--muted);
  font-size: 0.75rem;
  background: var(--bg-alt);
  overflow: hidden;
}
.ad-slot-leaderboard {
  max-width: 970px;
  min-height: 60px;
  margin: 0.75rem 1.75rem 0;
}
@media (min-width: 1020px) {
  .ad-slot-leaderboard { margin-left: auto; margin-right: auto; }
}

main { padding: 1.75rem; max-width: 1150px; margin: 0 auto; }
main.wide { max-width: 1600px; }

.page-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  margin-bottom: 1rem;
}
.page-header h1 { margin-bottom: 0.25rem; }

h1 { font-size: 1.6rem; letter-spacing: -0.02em; margin: 0 0 0.5rem; }
h2 { font-size: 1.1rem; letter-spacing: -0.01em; margin: 0 0 1rem; }

/* --- Live indicator --- */
.live-dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--success);
  box-shadow: 0 0 0 0 rgba(52, 211, 153, 0.6);
  animation: pulse 2s infinite;
  vertical-align: middle;
}
@keyframes pulse {
  0% { box-shadow: 0 0 0 0 rgba(52, 211, 153, 0.55); }
  70% { box-shadow: 0 0 0 8px rgba(52, 211, 153, 0); }
  100% { box-shadow: 0 0 0 0 rgba(52, 211, 153, 0); }
}

/* --- Cards --- */
.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  margin-bottom: 1.25rem;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.06);
}

fieldset {
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  margin-bottom: 1rem;
  padding: 1rem;
}
legend { padding: 0 0.4rem; font-weight: 600; font-size: 0.9rem; color: var(--muted); }

.form-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1rem;
}

label { display: block; margin-bottom: 0.85rem; font-size: 0.9rem; font-weight: 500; }
label.checkbox {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.5rem;
  font-weight: 400;
}

.platform-options, .channel-options {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1.25rem;
  margin-bottom: 0.5rem;
}
.platform-checkbox { margin-bottom: 0; }

.location-fields {
  margin-top: 0.75rem;
  padding-top: 0.75rem;
  border-top: 1px dashed var(--border);
}

input[type="text"], input[type="number"], input[type="email"], input[type="password"] {
  width: 100%;
  padding: 0.55rem 0.7rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: var(--bg-alt);
  color: var(--fg);
  font-size: 0.9rem;
  transition: border-color 0.15s ease;
}
input:focus {
  outline: none;
  border-color: var(--accent);
}

/* --- Buttons --- */
button, a.btn {
  padding: 0.5rem 1rem;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  background: var(--bg-alt);
  color: var(--fg);
  font-size: 0.85rem;
  font-weight: 500;
  cursor: pointer;
  transition: transform 0.08s ease, filter 0.15s ease, background 0.15s ease;
  display: inline-block;
  text-decoration: none;
}
button:hover, a.btn:hover { filter: brightness(1.1); }
button:active, a.btn:active { transform: scale(0.97); }

button.primary, a.btn.primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: white;
  border: none;
  font-weight: 600;
}
button.danger { background: transparent; border-color: var(--danger); color: var(--danger); }
button.danger:hover { background: var(--danger); color: white; }

/* --- Tables --- */
table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: 0.6rem 0.5rem; border-bottom: 1px solid var(--border); }
th { color: var(--muted); font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.03em; font-weight: 600; }

.admin-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  min-width: 220px;
}
.admin-actions form { display: flex; }
.admin-actions button {
  font-size: 0.78rem;
  padding: 0.4rem 0.7rem;
  white-space: nowrap;
}

.warning {
  color: var(--warning);
  font-size: 0.8rem;
  margin: 0.25rem 0 0.5rem;
  background: color-mix(in srgb, var(--warning) 12%, transparent);
  border-radius: var(--radius-sm);
  padding: 0.4rem 0.6rem;
}
.hint { color: var(--muted); font-size: 0.85rem; }

/* --- Toasts (notifications flash) --- */
.toast-container {
  position: fixed;
  bottom: 1.25rem;
  right: 1.25rem;
  z-index: 100;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 0.5rem;
  pointer-events: none;
}

.toast {
  background: var(--card);
  border: 1px solid var(--success);
  color: var(--fg);
  padding: 0.65rem 1.1rem;
  border-radius: 999px;
  font-size: 0.85rem;
  font-weight: 500;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
  opacity: 0;
  transform: translateY(12px);
  animation: toast-in 0.25s ease forwards;
}
.toast.hide { animation: toast-out 0.25s ease forwards; }

@keyframes toast-in {
  to { opacity: 1; transform: translateY(0); }
}
@keyframes toast-out {
  to { opacity: 0; transform: translateY(12px); }
}

/* --- Empty state --- */
.empty-state {
  border: 1px dashed var(--border);
  border-radius: var(--radius-lg);
  padding: 2rem;
  text-align: center;
  color: var(--muted);
}
.empty-state p:first-child { color: var(--fg); font-weight: 600; margin: 0 0 0.25rem; }

/* --- Search cards --- */
.search-card { margin-bottom: 1.25rem; }
.search-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-bottom: 1rem;
}
.search-title {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.5rem;
}
.search-title > strong { font-size: 1.05rem; }

.search-actions { display: flex; align-items: center; gap: 0.5rem; flex-wrap: wrap; }

.chip, .price-chip, .location-chip {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  padding: 0.15rem 0.6rem;
  border-radius: 999px;
  font-size: 0.78rem;
  font-weight: 600;
  background: var(--bg-alt);
  border: 1px solid var(--border);
}
.price-chip { color: var(--accent); border-color: color-mix(in srgb, var(--accent) 40%, var(--border)); }
.location-chip { color: var(--muted); font-weight: 500; }

.platform-badges { display: inline-flex; gap: 0.35rem; }

.badge {
  display: inline-flex;
  align-items: center;
  padding: 0.15rem 0.55rem;
  border-radius: 999px;
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.02em;
  color: white;
}
.badge-vinted { background: var(--vinted); }
.badge-leboncoin { background: var(--leboncoin); }
.badge-marketplace { background: var(--marketplace); }

.status {
  padding: 0.2rem 0.65rem;
  border-radius: 999px;
  font-size: 0.78rem;
  font-weight: 600;
}
.status.active { background: color-mix(in srgb, var(--success) 18%, transparent); color: var(--success); }
.status.paused { background: color-mix(in srgb, var(--warning) 18%, transparent); color: var(--warning); }

/* --- Offer grid --- */
.thumb {
  width: 48px;
  height: 48px;
  object-fit: cover;
  border-radius: var(--radius-sm);
  display: block;
}

.offer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  gap: 0.85rem;
  margin-top: 0.5rem;
}

.offer-tile {
  display: flex;
  flex-direction: column;
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  overflow: hidden;
  text-decoration: none;
  color: var(--fg);
  transition: transform 0.15s ease, border-color 0.15s ease, box-shadow 0.15s ease;
}
.offer-tile:hover {
  border-color: var(--accent);
  transform: translateY(-3px);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.18);
}

.offer-tile-media { position: relative; }

.offer-tile img {
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  display: block;
  background: var(--border);
  transition: transform 0.25s ease;
}
.offer-tile:hover img { transform: scale(1.05); }

.offer-tile-noimg {
  width: 100%;
  aspect-ratio: 1 / 1;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--border);
  color: var(--muted);
  font-size: 0.75rem;
  text-align: center;
  padding: 0.5rem;
}

.offer-badge {
  position: absolute;
  top: 0.4rem;
  left: 0.4rem;
  font-size: 0.62rem;
  padding: 0.1rem 0.4rem;
}

.offer-price-badge {
  position: absolute;
  bottom: 0.4rem;
  right: 0.4rem;
  background: rgba(10, 12, 16, 0.82);
  color: white;
  font-weight: 700;
  font-size: 0.78rem;
  padding: 0.15rem 0.5rem;
  border-radius: 999px;
}

.offer-tile-info {
  padding: 0.55rem 0.6rem;
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
}

.offer-title {
  font-size: 0.82rem;
  font-weight: 500;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.offer-platform { font-size: 0.72rem; }

/* --- Layout: zone de recherche / annonce / choix de l'annonce ---
   Mobile-first : les deux panneaux latéraux sont des <details> = menus
   déroulants natifs, empilés au-dessus de l'annonce. À partir de 900px,
   ils deviennent des colonnes fixes de part et d'autre, toujours ouvertes
   (le <summary> perd son comportement cliquable). */

.layout-grid { display: block; }

.side-drawer {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.06);
  padding: 1.25rem;
  margin-bottom: 1.25rem;
}

.side-drawer > summary {
  cursor: pointer;
  font-size: 1.1rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  list-style: none;
}
.side-drawer > summary::-webkit-details-marker { display: none; }
.side-drawer > summary::after {
  content: '▾';
  float: right;
  color: var(--muted);
  transition: transform 0.15s ease;
}
.side-drawer[open] > summary::after { transform: rotate(180deg); }

.side-drawer-body { margin-top: 1rem; }

.panel-annonce { margin-top: 0; margin-bottom: 1.25rem; }

@media (min-width: 900px) {
  .layout-grid {
    display: grid;
    grid-template-columns: 300px minmax(0, 1fr) 300px;
    gap: 1.75rem;
    align-items: start;
  }
  .side-drawer-left { grid-column: 1; grid-row: 1; margin-bottom: 0; }
  .panel-annonce { grid-column: 2; grid-row: 1; margin-bottom: 0; }
  .side-drawer-right { grid-column: 3; grid-row: 1; margin-bottom: 0; }

  /* Sur bureau, ces "bulles" restent toujours ouvertes : on neutralise
     le comportement cliquable/repliable du <summary> de la bulle elle-même
     (sélecteur d'enfant direct : ne touche pas aux <details> imbriqués,
     comme le menu "Notifications" à l'intérieur du formulaire). */
  .side-drawer > summary {
    cursor: default;
    pointer-events: none;
  }
  .side-drawer > summary::after { display: none; }
}

.notif-details { margin-top: 0.75rem; }
.notif-details summary {
  cursor: pointer;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--muted);
  padding: 0.4rem 0;
}
.notif-details summary:hover { color: var(--fg); }
.notif-details[open] summary { color: var(--fg); margin-bottom: 0.5rem; }

select {
  width: 100%;
  padding: 0.6rem 0.7rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: var(--bg-alt);
  color: var(--fg);
  font-size: 0.9rem;
  margin-bottom: 0.85rem;
}
select:focus { outline: none; border-color: var(--accent); }

.selected-meta-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.4rem;
}

.panel-annonce { margin-top: 1.25rem; }
.panel-annonce h2 { display: flex; align-items: center; gap: 0.5rem; }