/* veille. — mode sombre, accent orange */
:root {
  --bg: #121214;
  --surface: #1C1C1F;
  --surface-2: #222226;
  --line: #26262A;
  --line-strong: #3A3A40;
  --accent: #FF7A1A;        /* orange principal — 7,4:1 sur le fond */
  --accent-soft: #FFB27A;   /* orange clair — liens, étiquettes */
  --accent-tint: #2E2118;
  --text: #FFFFFF;
  --text-2: #EDEDF0;
  --muted: #B4B4BC;         /* 9:1 sur le fond */
  --muted-2: #A3A3AB;
  --header-h: 52px;
  --nav-h: 52px;
  --safe-top: env(safe-area-inset-top, 0px);
  --safe-bottom: env(safe-area-inset-bottom, 0px);
  color-scheme: dark;
}

/* Dynamic Type : sur iOS la taille de base suit le réglage « Taille du texte » */
html { font-size: 17px; }
@supports (font: -apple-system-body) {
  html { font: -apple-system-body; }
}
html, body { height: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, "SF Pro Text", system-ui, sans-serif;
  -webkit-font-smoothing: antialiased;
  -webkit-text-size-adjust: 100%;
}
/* vue détail ouverte : le fil derrière ne défile pas */
body.detail-open { overflow: hidden; }

button { font: inherit; color: inherit; background: none; border: 0; padding: 0; margin: 0; cursor: pointer; -webkit-tap-highlight-color: transparent; }
a { color: var(--accent-soft); }
:focus-visible { outline: 2px solid var(--accent-soft); outline-offset: 2px; border-radius: 10px; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0; }
.skip-link { position: absolute; left: 12px; top: -60px; z-index: 50; padding: 12px 16px; border-radius: 12px; background: var(--accent); color: var(--bg); font-weight: 700; text-decoration: none; }
.skip-link:focus { top: calc(var(--safe-top) + 8px); }
[hidden] { display: none !important; }

/* En-tête */
.app-header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 10;
  height: var(--header-h); padding: var(--safe-top) 6px 0 16px;
  display: flex; align-items: center; justify-content: space-between;
  background: var(--bg); border-bottom: 1px solid #1F1F23;
}
.wordmark { min-height: 44px; display: inline-flex; align-items: center; font-family: ui-rounded, -apple-system, system-ui, sans-serif; font-size: 28px; font-weight: 800; letter-spacing: -0.03em; line-height: 1; }
.wordmark-dot { color: var(--accent); }
.icon-btn { width: 44px; height: 44px; display: flex; align-items: center; justify-content: center; color: var(--text); border-radius: 12px; }
.icon-btn.is-spinning svg { animation: spin .9s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

/* Fil */
/* Le fil défile avec la page elle-même (et non dans une zone à part) : défilement natif et fluide,
   et un toucher sur la barre d'état de l'iPhone remonte tout en haut, comme sur Instagram. */
.feed {
  display: block;
  min-height: 100vh; min-height: 100dvh; box-sizing: border-box;
  padding-top: calc(var(--safe-top) + var(--header-h));
  padding-bottom: calc(var(--safe-bottom) + var(--nav-h) + 8px);
  outline: none;
}
.sources, .detail { scrollbar-width: none; }
.sources::-webkit-scrollbar, .detail::-webkit-scrollbar { display: none; }

.sources { display: flex; gap: 14px; overflow-x: auto; padding: 14px 16px 10px; }
.source { flex: none; width: 70px; display: flex; flex-direction: column; align-items: center; gap: 6px; }
.source-ring { width: 64px; height: 64px; box-sizing: border-box; border-radius: 50%; padding: 3px; border: 1.5px solid #4A4A50; }
.source[aria-pressed="true"] .source-ring { border: 3px solid var(--accent); }
.source-ring { position: relative; }
/* coche : l'état « favori » ne repose pas que sur la couleur */
.source-check { display: none; position: absolute; right: -2px; bottom: -2px; width: 22px; height: 22px; border-radius: 50%;
  background: var(--accent); color: var(--bg); border: 2px solid var(--bg); align-items: center; justify-content: center; }
.source[aria-pressed="true"] .source-check { display: flex; }
.source-avatar { width: 100%; height: 100%; border-radius: 50%; background: var(--surface-2); display: flex; align-items: center; justify-content: center; font-size: 15px; font-weight: 700; color: var(--accent-soft); }
.source-label { max-width: 70px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; font-size: .72rem; color: var(--muted); font-weight: 500; }
.source[aria-pressed="true"] .source-label { color: var(--text); font-weight: 700; }

.feed-head { padding: 10px 16px 14px; }
.feed-head h1 { margin: 0; font-size: 1.65rem; line-height: 1.15; font-weight: 800; letter-spacing: -0.02em; }
.feed-status { margin: 4px 0 0; font-size: .82rem; color: var(--muted); }
.banner { margin: 0 16px 14px; padding: 12px 14px; border-radius: 12px; background: var(--surface); border: 1px solid var(--line-strong); font-size: .88rem; color: var(--text-2); line-height: 1.4; }

/* Carte d'actualité */
.post { padding-bottom: 22px; border-top: 1px solid #232327; cursor: pointer; transition: background-color .12s ease;
  /* les cartes hors écran ne sont pas dessinées : défilement fluide même avec beaucoup d'articles */
  content-visibility: auto; contain-intrinsic-size: auto 640px; }
/* léger retour visuel quand on touche la carte (pas sur la rangée de boutons) */
.post:active:not(:has(.actions:active)) { background-color: #18181B; }
.post-head { display: flex; align-items: center; gap: 12px; padding: 12px 16px; }
.avatar { flex: none; width: 36px; height: 36px; box-sizing: border-box; border-radius: 50%; border: 1.5px solid #4A4A50; background: var(--surface-2); display: flex; align-items: center; justify-content: center; font-size: 12px; font-weight: 700; color: var(--accent-soft); }
.post.is-new .avatar { border: 2.5px solid var(--accent); }
.post-meta { display: flex; flex-direction: column; gap: 2px; min-width: 0; }
.post-source { font-size: .88rem; font-weight: 600; display: flex; align-items: center; gap: 8px; }
.new-tag { font-size: .68rem; font-weight: 700; padding: 2px 7px; border-radius: 999px; background: var(--accent); color: var(--bg); letter-spacing: .01em; }
.post-sub { font-size: .76rem; color: var(--muted); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

.cover { position: relative; min-height: 300px; box-sizing: border-box; padding: 20px; background: var(--surface); display: flex; flex-direction: column; justify-content: space-between; gap: 24px; overflow: hidden; }
.cover-decor { position: absolute; right: -30px; top: 24px; width: 190px; height: 190px; color: #2A2A2F; pointer-events: none; }
.cover-top { position: relative; display: flex; align-items: center; justify-content: space-between; }
.chip { display: inline-flex; align-items: center; gap: 6px; padding: 6px 12px; border-radius: 999px; background: var(--accent-tint); color: var(--accent-soft); font-size: .76rem; font-weight: 600; }
.chip svg { width: 14px; height: 14px; }
.counter { font-size: .76rem; font-weight: 600; color: var(--muted-2); font-variant-numeric: tabular-nums; }
.headline { position: relative; margin: 0; font-size: 1.76rem; line-height: 1.12; font-weight: 800; letter-spacing: -0.02em; color: var(--text); overflow-wrap: anywhere; }
.hl { color: var(--accent); }

/* Couverture avec image de l'article */
.cover--image { padding: 0; min-height: 0; aspect-ratio: 4 / 3; display: block; background: var(--surface); }
.cover-img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; display: block; }
.cover--image .cover-top { position: absolute; left: 12px; right: 12px; top: 12px; }
/* pastilles opaques : le texte reste lisible quelle que soit la photo */
.cover--image .chip { background: rgba(18, 18, 20, 0.88); }
.cover--image .counter { padding: 6px 10px; border-radius: 999px; background: rgba(18, 18, 20, 0.88); color: var(--text-2); }
.headline--below { padding: 14px 16px 2px; font-size: 1.5rem; }

.actions { display: flex; align-items: center; padding: 4px 6px 0; }
.actions .spacer { flex: 1; }
.action { width: 44px; height: 44px; display: flex; align-items: center; justify-content: center; color: var(--text); border-radius: 12px; }
.action[aria-pressed="true"] { color: var(--accent); }
.action[aria-pressed="true"] svg { fill: currentColor; }
@media (prefers-reduced-motion: no-preference) {
  .action[aria-pressed="true"] svg { animation: pop .25s ease-out; }
  @keyframes pop { 50% { transform: scale(1.18); } }
}

.caption { padding: 2px 16px 0; display: flex; flex-direction: column; align-items: flex-start; gap: 6px; }
.caption p { margin: 0; font-size: .88rem; line-height: 1.47; color: var(--text-2); }
.more { display: inline-flex; align-items: center; gap: 4px; min-height: 44px; font-size: .88rem; font-weight: 600; color: var(--accent-soft); }

.feed-end { margin: 0; padding: 20px 16px 28px; text-align: center; font-size: .82rem; color: var(--muted-2); }

/* État vide */
.empty { margin: 24px 16px; padding: 32px 24px; border-radius: 20px; background: var(--surface); display: flex; flex-direction: column; align-items: center; gap: 12px; text-align: center; }
.empty h2 { margin: 0; font-size: 1.18rem; }
.empty p { margin: 0; font-size: .88rem; line-height: 1.45; color: var(--muted); }
.btn-primary { min-height: 48px; padding: 0 22px; border-radius: 14px; background: var(--accent); color: var(--bg); font-size: .94rem; font-weight: 700; display: inline-flex; align-items: center; justify-content: center; gap: 8px; text-decoration: none; }
.btn-secondary { min-height: 48px; padding: 0 16px; border-radius: 14px; background: var(--surface); border: 1px solid #333338; color: var(--text); font-size: .94rem; font-weight: 600; display: inline-flex; align-items: center; justify-content: center; gap: 8px; }
.btn-secondary[aria-pressed="true"] { color: var(--accent); }
.btn-secondary[aria-pressed="true"] svg { fill: currentColor; }

/* Squelettes de chargement */
.skeleton { margin: 0 0 22px; }
.skeleton .sk-line { height: 14px; border-radius: 7px; background: var(--surface-2); margin: 12px 16px; }
.skeleton .sk-cover { height: 300px; background: var(--surface); }

/* Détail */
.detail {
  position: fixed; left: 0; right: 0; z-index: 20;
  top: 0; bottom: calc(var(--safe-bottom) + var(--nav-h));
  background: var(--bg); overflow-y: auto; overscroll-behavior: contain;
}
/* Le bandeau « Retour » est fixé tout en haut de l'écran, barre d'état comprise, avec un fond opaque :
   le texte qui défile ne passe plus derrière l'heure et la batterie. (position fixe plutôt que
   « sticky », plus fiable sur iOS dans une zone qui défile) */
.detail-bar { position: fixed; top: 0; left: 0; right: 0; z-index: 21; height: var(--header-h); padding: var(--safe-top) 6px 0;
  display: flex; align-items: center; background: var(--bg); border-bottom: 1px solid #1F1F23; }
.back { display: flex; align-items: center; gap: 2px; min-height: 44px; padding: 0 10px 0 4px; color: var(--accent-soft); font-size: 1rem; }
.detail-body { padding: calc(var(--safe-top) + var(--header-h) + 20px) 20px 32px; display: flex; flex-direction: column; gap: 16px; }
.detail-body .chip { align-self: flex-start; }
.chip-row { display: flex; flex-wrap: wrap; gap: 8px; }
.chip--tag { background: var(--surface); color: var(--text-2); border: 1px solid var(--line-strong); }
.detail-body .meta { margin: 0; font-size: .82rem; color: var(--muted); }
.detail-body p.text { margin: 0; font-size: 1rem; line-height: 1.55; color: var(--text-2); }
.detail-body p.lead { color: var(--text); font-weight: 500; }
.detail-figure { margin: 0 -20px; }
.detail-img { display: block; width: 100%; aspect-ratio: 16 / 9; object-fit: cover; background: var(--surface); }
.detail-figure figcaption { padding: 6px 20px 0; font-size: .72rem; color: var(--muted-2); }
.points { padding: 14px 16px; border-radius: 14px; background: var(--surface); border: 1px solid var(--line); }
.points h3 { margin: 0 0 8px; font-size: .82rem; font-weight: 700; color: var(--accent-soft); text-transform: uppercase; letter-spacing: .04em; }
.points ul { margin: 0; padding: 0; list-style: none; display: flex; flex-direction: column; gap: 8px; }
.points li { position: relative; padding-left: 18px; font-size: .94rem; line-height: 1.45; color: var(--text-2); }
.points li::before { content: ""; position: absolute; left: 2px; top: .55em; width: 7px; height: 7px; border-radius: 50%; background: var(--accent); }
.detail-actions { display: flex; gap: 10px; margin-top: 4px; }
.detail-actions > * { flex: 1; }

/* Toast */
.toast-region { position: fixed; left: 16px; right: 16px; bottom: calc(var(--safe-bottom) + var(--nav-h) + 12px); z-index: 30; pointer-events: none; }
.toast { pointer-events: auto; min-height: 52px; box-sizing: border-box; display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 4px 4px 4px 16px; border-radius: 14px; background: #2A2A2F; border: 1px solid var(--line-strong); font-size: .88rem; box-shadow: 0 8px 24px rgba(0,0,0,.4); }
.toast button { min-height: 44px; padding: 0 14px; color: var(--accent-soft); font-weight: 700; border-radius: 10px; }

/* Barre d'onglets */
.tabbar {
  position: fixed; left: 0; right: 0; bottom: 0; z-index: 40;
  padding-bottom: var(--safe-bottom);
  display: grid; grid-template-columns: repeat(4, minmax(0, 1fr));
  background: var(--bg); border-top: 1px solid var(--line);
}
.tab { position: relative; height: var(--nav-h); display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 3px; color: var(--muted-2); }
.tab-label { font-size: 12px; font-weight: 500; }
.tab-bar { position: absolute; top: -1px; width: 28px; height: 3px; border-radius: 0 0 3px 3px; background: transparent; }
.tab[aria-current="page"] { color: var(--accent); }
.tab[aria-current="page"] .tab-label { font-weight: 700; }
.tab[aria-current="page"] .tab-bar { background: var(--accent); }
.tab[aria-current="page"] .fillable { fill: currentColor; }
.tab[aria-current="page"] .thick { stroke-width: 2.4; }
.tab-icon { position: relative; display: flex; }
.badge { position: absolute; top: -4px; left: 16px; min-width: 18px; height: 18px; padding: 0 5px; box-sizing: border-box; border-radius: 9px; background: var(--accent); color: var(--bg); font-size: 11px; font-weight: 800; line-height: 18px; text-align: center; border: 2px solid var(--bg); }

/* Grands écrans : centrer le fil comme une app mobile */
@media (min-width: 600px) {
  .feed > *, .detail > * { max-width: 480px; margin-left: auto; margin-right: auto; }
}