:root { --bg: #fff; --soft: #fafafa; --line: #dbdbdb; --text: #000; --muted: #737373; --blue: #0095f6; --ring: linear-gradient(45deg, #feda75, #fa7e1e, #d62976, #962fbf, #4f5bd5); }
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--text); font: 14px/1.45 -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif; }
a { color: inherit; text-decoration: none; }
button { font: inherit; cursor: pointer; }
.i { flex: none; }
.muted { color: var(--muted); }
.logo { font-family: "Grand Hotel", "Brush Script MT", cursive; font-size: 32px; line-height: 1; }

/* Navigation latérale */
.side-nav { position: fixed; inset: 0 auto 0 0; width: 245px; border-right: 1px solid var(--line); padding: 26px 12px 20px; display: flex; flex-direction: column; gap: 4px; background: var(--bg); z-index: 10; }
.side-nav .logo { padding: 0 12px 26px; }
.side-nav .item { display: flex; align-items: center; gap: 16px; padding: 12px; border-radius: 10px; font-size: 16px; transition: background .15s; }
.side-nav .item:hover { background: #f2f2f2; }
.side-nav .item:hover .i { transform: scale(1.06); }
.side-nav .item .i { transition: transform .15s; }
.side-nav .item.on { font-weight: 700; }
.side-nav .item.off { color: var(--muted); cursor: default; }
.side-nav .item.off:hover { background: none; }
.side-nav .spacer { flex: 1; }
.page { margin-left: 245px; min-height: 100vh; }
.wrap { max-width: 935px; margin: 0 auto; padding: 30px 20px 60px; }

/* Avatars */
.av { display: grid; place-items: center; flex: none; width: 32px; height: 32px; border-radius: 50%; color: #fff; font-weight: 700; }
.ring { padding: 3px; border-radius: 50%; background: var(--ring); display: inline-grid; flex: none; }
.ring > .av { border: 3px solid var(--bg); }
.av.xl { width: 150px; height: 150px; font-size: 60px; }
.av.md { width: 56px; height: 56px; font-size: 22px; }

/* Profil */
.prof { display: flex; gap: 80px; align-items: center; padding: 0 0 44px 50px; border-bottom: 1px solid var(--line); animation: rise .5s both; }
.prof section { min-width: 0; }
.row1 { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.row1 h1 { margin: 0 12px 0 0; font-size: 20px; font-weight: 400; }
.btn { border: 0; border-radius: 8px; padding: 7px 16px; font-weight: 600; background: #efefef; color: #000; transition: background .15s; }
.btn:hover { background: #dbdbdb; }
.btn.primary { background: var(--blue); color: #fff; }
.btn.primary:hover { background: #1877f2; }
.btn.primary.on { background: #efefef; color: #000; }
.stats { display: flex; gap: 40px; list-style: none; padding: 0; margin: 20px 0; font-size: 16px; }
.stats b { font-weight: 600; }
.bio { white-space: pre-line; }
.bio b { display: block; }
.ptabs { display: flex; justify-content: center; gap: 60px; font-size: 12px; letter-spacing: 1px; font-weight: 600; color: var(--muted); }
.ptabs span { display: flex; align-items: center; gap: 6px; padding: 16px 0; border-top: 1px solid transparent; margin-top: -1px; }
.ptabs .on { color: #000; border-color: #000; }

/* Grille de publications */
.grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 4px; }
.tile { position: relative; aspect-ratio: 1; display: grid; place-items: center; overflow: hidden; animation: rise .5s both; }
.tile .emo { font-size: clamp(48px, 9vw, 96px); filter: drop-shadow(0 6px 14px rgba(0, 0, 0, .25)); transition: transform .4s cubic-bezier(.2, .8, .2, 1); }
.tile:hover .emo { transform: scale(1.12) rotate(-4deg); }
.tile .ov { position: absolute; inset: 0; display: flex; align-items: center; justify-content: center; gap: 6px; background: rgba(0, 0, 0, .35); color: #fff; font-weight: 700; font-size: 16px; opacity: 0; transition: opacity .2s; }
.tile .ov .i { fill: #fff; }
.tile:hover .ov { opacity: 1; }
.photo { background-image: radial-gradient(circle at 25% 15%, rgba(255, 255, 255, .35), transparent 55%); }

/* Fenêtre d'une publication (ouverte au clic, via l'ancre de l'adresse) */
.modal { display: none; position: fixed; inset: 0; z-index: 50; align-items: center; justify-content: center; padding: 40px; }
.modal:target { display: flex; animation: fade .2s both; }
.modal .shade { position: absolute; inset: 0; background: rgba(0, 0, 0, .65); }
.modal .close { position: absolute; top: 14px; right: 18px; color: #fff; z-index: 2; }
.sheet { position: relative; z-index: 1; display: grid; grid-template-columns: minmax(0, 1fr) 360px; width: min(1000px, 100%); max-height: calc(100vh - 80px); background: #fff; border-radius: 4px; overflow: hidden; animation: zoom .25s cubic-bezier(.2, .8, .2, 1) both; }
.sheet .big { aspect-ratio: 1; display: grid; place-items: center; font-size: clamp(90px, 16vw, 200px); }
.sheet aside { display: flex; flex-direction: column; border-left: 1px solid #efefef; min-height: 0; }
.sheet .who { display: flex; align-items: center; gap: 12px; padding: 14px 16px; border-bottom: 1px solid #efefef; font-weight: 600; }
.sheet .cap { flex: 1; padding: 16px; display: flex; gap: 12px; align-items: flex-start; overflow: auto; }
.sheet .cap b { margin-right: 4px; }
.sheet .foot { border-top: 1px solid #efefef; padding: 10px 16px 16px; }

/* Actions d'une publication */
.acts { display: flex; gap: 14px; padding: 6px 0; }
.acts .end { margin-left: auto; }
.acts button { background: none; border: 0; padding: 2px; color: inherit; transition: transform .15s, color .15s; }
.acts button:hover { color: var(--muted); }
.acts button.on { color: #ff3040; }
.acts button.on .i { fill: #ff3040; animation: pop .35s; }
.likes { font-weight: 600; }
.date { color: var(--muted); font-size: 11px; text-transform: uppercase; letter-spacing: .3px; margin-top: 6px; display: block; }

/* Accueil */
.home { display: grid; grid-template-columns: minmax(0, 630px) 320px; gap: 64px; justify-content: center; padding: 26px 20px 60px; }
.stories { display: flex; gap: 16px; overflow-x: auto; padding: 4px 4px 18px; margin-bottom: 8px; scrollbar-width: none; }
.story { display: flex; flex-direction: column; align-items: center; gap: 6px; width: 74px; font-size: 12px; text-align: center; animation: rise .5s both; }
.story .ring { transition: transform .2s; }
.story:hover .ring { transform: scale(1.06); }
.story span.n { width: 74px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.search { border: 1px solid var(--line); border-radius: 12px; padding: 18px; margin-bottom: 28px; background: var(--soft); scroll-margin-top: 20px; }
.search h2 { margin: 0 0 12px; font-size: 16px; }
.seg { display: flex; gap: 6px; margin-bottom: 12px; flex-wrap: wrap; }
.seg button { border: 1px solid var(--line); background: #fff; border-radius: 999px; padding: 7px 14px; font-weight: 600; color: var(--muted); transition: .15s; }
.seg button.on { background: #000; border-color: #000; color: #fff; }
.search form { display: flex; gap: 8px; }
.search input { flex: 1; min-width: 0; padding: 10px 14px; border: 0; border-radius: 8px; background: #efefef; font: inherit; outline: 0; }
.search input:focus { background: #e6e6e6; }
.search form .btn { background: var(--blue); color: #fff; }
.results { margin-top: 12px; display: grid; gap: 6px; }
.result { display: flex; gap: 12px; align-items: center; padding: 8px; border-radius: 10px; background: #fff; border: 1px solid #efefef; animation: rise .3s both; transition: background .15s; }
.result:hover { background: #f5f5f5; }
.result .thumb { width: 56px; height: 56px; border-radius: 6px; display: grid; place-items: center; font-size: 28px; flex: none; }
.result .note { padding: 6px; }
.fpost { border-bottom: 1px solid var(--line); padding-bottom: 18px; margin-bottom: 18px; animation: rise .5s both; }
.fpost header { display: flex; align-items: center; gap: 10px; padding: 0 0 10px; }
.fpost header b { font-weight: 600; }
.fpost .media { display: grid; place-items: center; aspect-ratio: 1; border-radius: 6px; border: 1px solid #efefef; font-size: clamp(90px, 20vw, 170px); overflow: hidden; }
.fpost .media span { transition: transform .5s cubic-bezier(.2, .8, .2, 1); filter: drop-shadow(0 10px 22px rgba(0, 0, 0, .25)); }
.fpost .media:hover span { transform: scale(1.08); }
.fpost .cap b { margin-right: 4px; }
.suggest h3 { font-size: 14px; color: var(--muted); margin: 18px 0 10px; }
.sug { display: flex; align-items: center; gap: 12px; padding: 7px 0; }
.sug .who { flex: 1; min-width: 0; line-height: 1.25; }
.sug .who b { display: block; font-weight: 600; }
.sug button { background: none; border: 0; color: var(--blue); font-weight: 600; font-size: 12px; }
.sug button.on { color: #000; }
.tiny { color: #c7c7c7; font-size: 12px; margin-top: 26px; line-height: 1.7; }
.tiny a:hover { text-decoration: underline; }

.mobile-top { display: none; }
@keyframes rise { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: none; } }
@keyframes fade { from { opacity: 0; } }
@keyframes zoom { from { opacity: 0; transform: scale(.96); } }
@keyframes pop { 50% { transform: scale(1.3); } }
@media (prefers-reduced-motion: reduce) { * { animation: none !important; transition: none !important; } }

@media (max-width: 1260px) { .side-nav { width: 73px; align-items: center; } .side-nav .label, .side-nav .logo { display: none; } .page { margin-left: 73px; } }
@media (max-width: 1000px) { .home { grid-template-columns: minmax(0, 630px); } .home .suggest { display: none; } }
@media (max-width: 760px) {
  .side-nav { inset: auto 0 0 0; width: auto; height: 50px; flex-direction: row; justify-content: space-around; padding: 0; border-right: 0; border-top: 1px solid var(--line); }
  .side-nav .spacer, .side-nav .item.off { display: none; }
  .page { margin-left: 0; padding-bottom: 50px; }
  .mobile-top { display: flex; align-items: center; justify-content: space-between; padding: 10px 16px; border-bottom: 1px solid var(--line); }
  .prof { gap: 24px; padding: 0 0 24px; }
  .av.xl { width: 86px; height: 86px; font-size: 34px; }
  .stats { gap: 18px; font-size: 14px; }
  .ptabs { gap: 30px; }
  .modal { padding: 0; }
  .sheet { grid-template-columns: 1fr; max-height: 100vh; overflow: auto; border-radius: 0; }
}