:root{
  --bg:#07070b;--stage:#0c0c12;--surface:#16161f;--surface2:#1f1f2b;--line:#2a2a38;
  --text:#f3f2fa;--muted:#9190a8;--accent:#8b7bff;--ink:#0b0a18;--like:#ff3b6b;
  --glass:rgba(255,255,255,.12);--safe-b:env(safe-area-inset-bottom,0px);--safe-t:env(safe-area-inset-top,0px);
  --display:"Bricolage Grotesque","Figtree",system-ui,sans-serif;
  --body:"Figtree",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}
html,body{margin:0;height:100%;background:var(--bg);color:var(--text);font-family:var(--body);overflow:hidden}
body{display:grid;place-items:center;height:100dvh}
button,input,textarea{font:inherit;color:inherit}
button{cursor:pointer;border:0;background:none;padding:0}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:8px}
[hidden]{display:none!important}
.ic{width:24px;height:24px;fill:none;stroke:currentColor;stroke-width:1.9;stroke-linecap:round;stroke-linejoin:round;flex:none}

/* ---------- stage ---------- */
.stage{position:relative;width:min(460px,100%);height:100dvh;background:var(--stage);overflow:hidden}
@media(min-width:600px) and (min-height:720px){
  .stage{height:min(calc(100dvh - 32px),900px);border-radius:28px;border:1px solid var(--line);box-shadow:0 30px 80px #000a}
}

/* ---------- top bar ---------- */
.topbar{position:absolute;z-index:20;top:0;left:0;right:0;padding:calc(10px + var(--safe-t)) 12px 18px;display:grid;grid-template-columns:auto 1fr auto;gap:8px;align-items:center;background:linear-gradient(rgba(0,0,0,.6),transparent);pointer-events:none}
.topbar>*{pointer-events:auto}
.mark{display:inline-grid;place-items:center;width:30px;height:30px;border-radius:10px;background:linear-gradient(145deg,#a99dff,#6d5bf5);color:var(--ink);font:800 18px/1 var(--display)}
.tabs{display:flex;justify-content:center;gap:18px;min-width:0}
.tab{position:relative;padding:8px 2px;font:600 16px var(--body);color:#ffffffa6;transition:color .2s}
.tab.active{color:#fff}
.tab.active::after{content:"";position:absolute;left:50%;bottom:0;width:22px;height:3px;margin-left:-11px;border-radius:3px;background:var(--accent)}
.icon-btn{width:44px;height:44px;display:grid;place-items:center;border-radius:50%;justify-self:end}

/* ---------- feed ---------- */
.feed{height:100%;overflow-y:auto;scroll-snap-type:y mandatory;overscroll-behavior:contain;scrollbar-width:none}
.feed::-webkit-scrollbar{display:none}
.card{position:relative;height:100%;scroll-snap-align:start;scroll-snap-stop:always;background:#000;overflow:hidden}
.video{width:100%;height:100%;object-fit:cover;display:block;background:#000}
.video.wide{object-fit:contain}
.tap{position:absolute;inset:0;z-index:1}
.shade{position:absolute;inset:0;pointer-events:none;background:linear-gradient(rgba(0,0,0,.35),transparent 22%,transparent 50%,rgba(0,0,0,.82))}
.pause-ind{position:absolute;z-index:1;left:50%;top:50%;width:76px;height:76px;margin:-38px 0 0 -38px;border-radius:50%;display:grid;place-items:center;background:rgba(0,0,0,.42);backdrop-filter:blur(8px);opacity:0;transform:scale(.8);transition:opacity .18s,transform .18s;pointer-events:none}
.pause-ind .ic{width:32px;height:32px;fill:#fff;stroke:#fff;margin-left:4px}
.card.paused .pause-ind{opacity:1;transform:none}
.burst{position:absolute;z-index:3;width:92px;height:92px;margin:-46px 0 0 -46px;pointer-events:none;animation:burst .75s ease-out forwards}
.burst .ic{width:100%;height:100%;fill:var(--like);stroke:var(--like);filter:drop-shadow(0 6px 18px #0008)}
@keyframes burst{0%{transform:scale(.3);opacity:0}25%{transform:scale(1.15);opacity:1}60%{transform:scale(1)}100%{transform:scale(1.25) translateY(-30px);opacity:0}}
.bar{position:absolute;z-index:4;left:16px;right:16px;bottom:calc(82px + var(--safe-b));height:4px;border-radius:4px;background:rgba(255,255,255,.22);cursor:pointer}
.bar::before{content:"";position:absolute;left:0;right:0;top:-14px;bottom:-14px}
.bar i{display:block;height:100%;width:0;border-radius:4px;background:linear-gradient(90deg,#c4baff,#fff);pointer-events:none}
.bar:hover{height:6px}

.meta{position:absolute;z-index:2;left:16px;right:84px;bottom:calc(94px + var(--safe-b))}
.author{display:flex;align-items:center;gap:10px}
.author .who{display:flex;align-items:center;gap:10px;font-weight:700;font-size:15.5px;text-shadow:0 1px 8px #0009}
.avatar{width:40px;height:40px;border-radius:50%;object-fit:cover;background:var(--surface2);border:2px solid rgba(255,255,255,.35);flex:none}
.follow{padding:6px 14px;border-radius:999px;font-size:13px;font-weight:700;background:var(--accent);color:var(--ink);transition:background .2s}
.follow.on{background:var(--glass);color:#fff;backdrop-filter:blur(8px)}
.caption{margin:12px 0 6px;font-size:14.5px;line-height:1.4;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;text-shadow:0 1px 8px #0009}
.tags{color:#cbc5ff;font-size:14px;font-weight:600}

.actions{position:absolute;z-index:3;right:10px;bottom:calc(98px + var(--safe-b));display:flex;flex-direction:column;gap:14px;align-items:center}
.action{display:flex;flex-direction:column;align-items:center;gap:5px;font-size:12.5px;font-weight:600;text-shadow:0 1px 6px #0009}
.action .ic-wrap{width:48px;height:48px;border-radius:50%;display:grid;place-items:center;background:var(--glass);backdrop-filter:blur(10px);transition:transform .15s}
.action:active .ic-wrap{transform:scale(.9)}
.action .ic{width:25px;height:25px}
.action.liked .ic{fill:var(--like);stroke:var(--like)}
.sound{position:absolute;z-index:3;right:12px;top:calc(66px + var(--safe-t));width:38px;height:38px;border-radius:50%;display:grid;place-items:center;background:rgba(0,0,0,.4);backdrop-filter:blur(8px)}
.sound .ic{width:19px;height:19px}

.loading{position:absolute;z-index:15;top:calc(64px + var(--safe-t));left:50%;margin-left:-14px;width:28px;height:28px;border-radius:50%;background:rgba(0,0,0,.5);display:none;place-items:center}
.loading.on{display:grid}
.loading i{width:14px;height:14px;border-radius:50%;border:2px solid #fff4;border-top-color:#fff;animation:spin .7s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}

.empty{height:100%;scroll-snap-align:start;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;padding:0 36px 70px;gap:10px}
.empty .badge{width:72px;height:72px;border-radius:24px;display:grid;place-items:center;background:var(--surface);border:1px solid var(--line);color:var(--accent);margin-bottom:8px}
.empty .badge .ic{width:32px;height:32px}
.empty h3{margin:0;font:800 24px/1.15 var(--display);letter-spacing:-.4px}
.empty p{margin:0 0 10px;color:var(--muted);line-height:1.5;max-width:30ch}
.empty .primary{width:auto;padding:12px 24px}

/* ---------- bottom nav ---------- */
.bottom{position:absolute;z-index:30;left:12px;right:12px;bottom:calc(12px + var(--safe-b));height:62px;padding:0 6px;display:flex;align-items:center;justify-content:space-around;border-radius:22px;background:rgba(18,18,27,.72);backdrop-filter:blur(20px) saturate(1.4);-webkit-backdrop-filter:blur(20px) saturate(1.4);border:1px solid rgba(255,255,255,.08)}
.nav{display:flex;flex-direction:column;align-items:center;gap:3px;min-width:56px;height:100%;justify-content:center;color:#ffffff8c;font-size:11px;font-weight:600;transition:color .2s}
.nav.active{color:#fff}
.nav.create i{display:grid;place-items:center;width:50px;height:36px;border-radius:13px;background:linear-gradient(145deg,#a99dff,#6d5bf5);color:var(--ink)}
.nav.create .ic{stroke-width:2.4}

/* ---------- modals ---------- */
.modal{display:none;position:fixed;z-index:100;inset:0;background:rgba(3,3,6,.66);backdrop-filter:blur(6px);align-items:flex-end;justify-content:center}
.modal.open{display:flex}
.sheet{position:relative;width:min(520px,100%);max-height:92dvh;overflow:auto;background:var(--surface);border-radius:26px 26px 0 0;padding:30px 20px calc(24px + var(--safe-b));border:1px solid var(--line);border-bottom:0;animation:rise .28s cubic-bezier(.2,.8,.2,1)}
.sheet::before{content:"";position:absolute;top:8px;left:50%;width:38px;height:4px;margin-left:-19px;border-radius:4px;background:var(--line)}
@keyframes rise{from{transform:translateY(28px);opacity:0}to{transform:none;opacity:1}}
@media(min-width:640px){.modal{align-items:center}.sheet{border-radius:26px;border-bottom:1px solid var(--line);padding-bottom:28px}.sheet::before{display:none}}
.close{position:absolute;right:14px;top:16px;width:36px;height:36px;border-radius:50%;display:grid;place-items:center;background:var(--surface2);color:var(--muted);z-index:2}
.close .ic{width:18px;height:18px}
.sheet h2{margin:0 0 4px;font:800 26px/1.15 var(--display);letter-spacing:-.5px}
.sheet h3{margin:0 0 12px;font:800 20px var(--display)}
.muted{color:var(--muted);margin:0}
.sheet input,.sheet textarea{display:block;width:100%;background:var(--surface2);border:1px solid var(--line);border-radius:14px;padding:14px;outline:none;margin:10px 0;transition:border-color .15s,box-shadow .15s}
.sheet input::placeholder,.sheet textarea::placeholder{color:#6f6e86}
.sheet input:focus,.sheet textarea:focus{border-color:var(--accent);box-shadow:0 0 0 3px #8b7bff33}
.sheet textarea{min-height:96px;resize:vertical}
.primary{width:100%;background:var(--accent);color:var(--ink);font-weight:700;font-size:16px;border-radius:14px;padding:14px;margin-top:8px;transition:opacity .2s,transform .1s}
.primary:active{transform:scale(.985)}
.primary:disabled{opacity:.55;cursor:default}
.brand-big{display:flex;align-items:center;justify-content:center;gap:9px;margin:4px 0 24px;font:800 22px var(--display);letter-spacing:-.5px}
.brand-big .sub{font-weight:600;color:var(--accent);margin-left:-3px}
.switch{text-align:center;color:var(--muted);margin:16px 0 0}
.switch button{color:var(--text);font-weight:700;text-decoration:underline;text-underline-offset:3px}
.auth h2{margin-top:4px}

.drop{position:relative;display:block;height:220px;border:1.5px dashed #3a3a4e;border-radius:18px;background:var(--surface2);margin:16px 0 4px;cursor:pointer;overflow:hidden;transition:border-color .2s}
.drop:hover{border-color:var(--accent)}
.drop input{position:absolute;inset:0;opacity:0;cursor:pointer;margin:0;z-index:2}
.drop video{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;display:none}
.drop-empty{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:6px;color:var(--muted)}
.drop-empty .ic{width:30px;height:30px;color:var(--accent);margin-bottom:4px}
.drop-empty b{color:var(--text);font-size:16px}
.drop-empty small{font-size:13px}
.drop-name{position:absolute;left:10px;right:10px;bottom:10px;padding:7px 12px;border-radius:10px;background:rgba(0,0,0,.6);backdrop-filter:blur(6px);font-size:13px;display:none;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.drop.has video,.drop.has .drop-name{display:block}
.drop.has .drop-empty{display:none}
.count{text-align:right;font-size:12px;color:var(--muted);margin-top:-4px}
.progress{height:6px;background:var(--surface2);margin-top:14px;border-radius:6px;overflow:hidden}
.progress i{display:block;height:100%;width:0;background:var(--accent);border-radius:6px;transition:width .15s}

.comments-sheet{height:74dvh;display:flex;flex-direction:column}
.comments-list{flex:1;overflow:auto;margin:0 -4px;padding:0 4px}
.comment{display:flex;gap:11px;padding:12px 0}
.comment .avatar{width:36px;height:36px;border-width:1px}
.comment p{margin:2px 0 0;color:#dcdbe8;line-height:1.4;overflow-wrap:anywhere}
.comment b{font-size:14px}
.comment-form{display:flex;gap:8px;align-items:center;padding-top:10px}
.comment-form input{margin:0}
.send{padding:0 18px;height:48px;border-radius:14px;background:var(--accent);color:var(--ink);font-weight:700}

.result,.notice{display:flex;align-items:center;gap:12px;padding:13px 0;border-bottom:1px solid var(--line)}
.result:last-child,.notice:last-child{border-bottom:0}
.result button.view{margin-left:auto;padding:8px 16px;border-radius:999px;background:var(--surface2);font-weight:600;font-size:14px}
.notice .n-ic{width:38px;height:38px;border-radius:50%;display:grid;place-items:center;background:var(--surface2);flex:none}
.notice .n-ic .ic{width:19px;height:19px}
.notice .n-ic.like{color:var(--like)}.notice .n-ic.comment{color:var(--accent)}.notice .n-ic.follow{color:#6ee7d0}
.notice .t{font-size:12.5px;color:var(--muted);margin-top:2px}
#searchResults{margin-top:6px}

.profile-head{text-align:center;padding-top:6px}
.profile-head .avatar{width:88px;height:88px;margin:0 auto 12px;border-color:var(--accent)}
.profile-head h2{font-size:24px}
.profile-head p{color:#cfcee0;margin:10px auto 0;max-width:34ch;line-height:1.45}
.stats{display:flex;justify-content:center;gap:34px;margin:22px 0}
.stats b{display:block;font:800 22px var(--display)}
.stats span{font-size:13px;color:var(--muted)}
.ghost{width:100%;margin-bottom:18px;padding:12px;border-radius:14px;background:var(--surface2);font-weight:700}
.profile-head .primary{margin:0 0 18px}
.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:3px}
.grid video{width:100%;aspect-ratio:9/16;object-fit:cover;background:var(--surface2);border-radius:10px;cursor:pointer}
.grid-empty{grid-column:1/-1;text-align:center;padding:26px 0;color:var(--muted)}

.toasts{position:fixed;z-index:300;left:0;right:0;bottom:calc(92px + var(--safe-b));display:flex;flex-direction:column;align-items:center;gap:8px;pointer-events:none}
.toast{max-width:min(380px,90vw);padding:12px 18px;border-radius:14px;background:#1d1d29;border:1px solid var(--line);font-size:14.5px;font-weight:500;box-shadow:0 12px 36px #000a;animation:rise .22s ease-out;transition:opacity .35s}
.toast.out{opacity:0}

@media(prefers-reduced-motion:reduce){*,*::before,*::after{animation-duration:.01ms!important;transition-duration:.01ms!important}}

.nav{position:relative}.nav .dot{position:absolute;top:2px;right:calc(50% - 22px);min-width:17px;height:17px;padding:0 4px;border-radius:9px;background:#ff4d6d;color:#fff;font:700 10px/17px system-ui;text-align:center;font-style:normal}
.filter-bar{position:absolute;z-index:25;top:calc(62px + var(--safe-t));left:50%;transform:translateX(-50%);display:flex;align-items:center;gap:8px;padding:6px 8px 6px 14px;border-radius:20px;background:var(--glass);backdrop-filter:blur(12px);font-size:13px;max-width:80%}
.filter-bar button{width:26px;height:26px;display:grid;place-items:center;border-radius:50%;background:rgba(255,255,255,.12);color:inherit}.filter-bar .ic{width:14px;height:14px}
.tag{color:var(--accent,#a99dff);margin-right:4px;cursor:pointer}
.gwrap{position:relative}.gwrap video{width:100%;display:block}.gdel{position:absolute;top:4px;right:4px;width:26px;height:26px;border-radius:50%;display:grid;place-items:center;background:rgba(0,0,0,.65);color:#fff}.gdel .ic{width:14px;height:14px}
.edit-form{display:grid;gap:10px;padding:8px 0}.edit-form input,.edit-form textarea{padding:12px 14px;border-radius:14px;border:1px solid var(--line);background:var(--surface2);color:inherit;font:inherit}

/* ---------- v4: UX + cinematic polish ---------- */
.logo{justify-self:start}
.top-right{justify-self:end;display:flex;align-items:center;gap:6px}
.login-pill{padding:7px 13px;white-space:nowrap;border-radius:999px;font-weight:700;font-size:13px;background:#fff;color:var(--ink);box-shadow:0 6px 20px #0006}
.mark{box-shadow:0 0 22px #8b7bff88}
.stage{background:radial-gradient(120% 80% at 50% 0%,#1b1740 0%,var(--stage) 60%)}
.card{background:radial-gradient(90% 60% at 50% 40%,#17132e,#000)}
.shade{background:linear-gradient(rgba(0,0,0,.45),transparent 20%,transparent 42%,rgba(0,0,0,.88))}
.bottom{box-shadow:0 14px 40px #000b}
.nav.active{color:#fff}.nav.active .ic{color:var(--accent);filter:drop-shadow(0 0 8px #8b7bffaa)}
.nav.create i{box-shadow:0 8px 24px #6d5bf577}
.follow{box-shadow:0 4px 14px #6d5bf566}
.action .ic-wrap{border:1px solid rgba(255,255,255,.1)}
.action.liked .ic-wrap{background:#ff3b6b33}
.caption{cursor:pointer}.caption.open{-webkit-line-clamp:unset;max-height:34dvh;overflow:auto}
.card:not(.paused) .caption.open{pointer-events:auto}

.buf{position:absolute;z-index:2;left:50%;top:50%;width:44px;height:44px;margin:-22px 0 0 -22px;border-radius:50%;display:none;place-items:center;background:rgba(0,0,0,.45);backdrop-filter:blur(6px);pointer-events:none}
.buf i{width:22px;height:22px;border-radius:50%;border:3px solid #fff4;border-top-color:#fff;animation:spin .7s linear infinite}
.card.buffering .buf{display:grid}
.retry{position:absolute;z-index:4;left:50%;top:50%;transform:translate(-50%,-50%);display:none;padding:12px 20px;border-radius:14px;background:rgba(0,0,0,.65);backdrop-filter:blur(8px);font-weight:600;font-size:14px;border:1px solid var(--line);max-width:80%}
.card.failed .retry{display:block}

.sound-hint{position:absolute;z-index:22;top:calc(112px + var(--safe-t));left:50%;transform:translateX(-50%);display:flex;align-items:center;gap:8px;padding:9px 16px;border-radius:999px;background:rgba(0,0,0,.55);backdrop-filter:blur(10px);border:1px solid rgba(255,255,255,.14);font-weight:600;font-size:13.5px;animation:rise .4s .6s both;transition:opacity .25s}
.sound-hint .ic{width:18px;height:18px}.sound-hint.hide{opacity:0;pointer-events:none}
.swipe-hint{position:absolute;z-index:22;left:50%;bottom:36%;transform:translateX(-50%);display:flex;flex-direction:column;align-items:center;gap:2px;font-size:12.5px;font-weight:600;color:#fffc;pointer-events:none;animation:nudge 1.4s ease-in-out 1.2s 4 both;text-shadow:0 1px 8px #000}
@keyframes nudge{0%,100%{transform:translate(-50%,0);opacity:0}30%{opacity:1}60%{transform:translate(-50%,-14px);opacity:1}}

/* ads */
.card.ad{display:grid;place-items:center;background:radial-gradient(80% 60% at 50% 35%,#2a2060,#0b0a18 70%)}
.ad-badge{position:absolute;z-index:3;top:calc(70px + var(--safe-t));left:16px;padding:4px 10px;border-radius:8px;background:rgba(255,255,255,.14);backdrop-filter:blur(8px);font-size:11.5px;font-weight:700;letter-spacing:.8px;text-transform:uppercase}
.ad-body{width:min(100%,380px);padding:0 20px;text-align:center}
.house{padding:34px 22px;border-radius:26px;background:linear-gradient(160deg,#1f1f2b,#16161f);border:1px solid var(--line);box-shadow:0 30px 70px #0009}
.house-ic{width:64px;height:64px;margin:0 auto 16px;border-radius:20px;display:grid;place-items:center;background:linear-gradient(145deg,#a99dff,#6d5bf5);color:var(--ink)}.house-ic .ic{width:30px;height:30px}
.house h3{margin:0 0 8px;font:800 26px/1.15 var(--display);letter-spacing:-.4px}
.house p{margin:0 0 20px;color:var(--muted);line-height:1.5}
.house .primary{display:block;text-decoration:none;text-align:center}
.ad-skip{position:absolute;z-index:3;left:0;right:0;bottom:calc(92px + var(--safe-b));display:flex;flex-direction:column;align-items:center;color:#ffffffa6;font-size:12.5px;font-weight:600;pointer-events:none}
.card[data-sample] .follow,.card[data-sample] .share{display:none}

/* desktop arrows */
.navarrows{display:none}
@media(min-width:760px) and (hover:hover){
  .navarrows{display:flex;flex-direction:column;gap:10px;position:fixed;z-index:40;top:50%;transform:translateY(-50%);left:calc(50% + 230px + 20px)}
  .navarrows button{width:48px;height:48px;border-radius:50%;display:grid;place-items:center;background:var(--surface2);border:1px solid var(--line);transition:background .2s,transform .1s}
  .navarrows button:hover{background:var(--accent);color:var(--ink)}.navarrows button:active{transform:scale(.92)}
}

.tab{white-space:nowrap}