/* ===== Theme ===== */
:root{
  --bg:#070b18; --bg2:#0d1430; --panel:rgba(255,255,255,.055); --line:rgba(255,255,255,.12);
  --text:#eef1fb; --muted:#9aa6c7; --dim:#5d6a8f;
  --a1:#8b5cf6; --a2:#22d3ee; --a3:#f472b6; --a4:#34d399; --a5:#fbbf24; --a6:#fb7185;
  --grad:linear-gradient(90deg,var(--a2),var(--a1) 55%,var(--a3));
  --font:"Segoe UI Variable Display","Segoe UI",system-ui,-apple-system,Roboto,"Helvetica Neue",Arial,sans-serif;
  --mono:"Cascadia Code","JetBrains Mono",Consolas,"SF Mono",monospace;
}
*{box-sizing:border-box;margin:0;padding:0}
html,body{height:100%;overflow:hidden;background:var(--bg);color:var(--text);font-family:var(--font);-webkit-tap-highlight-color:transparent}
body{touch-action:none}

/* ===== Animated backdrop ===== */
.bg{position:fixed;inset:0;overflow:hidden;z-index:0;background:radial-gradient(ellipse at top,var(--bg2),var(--bg) 70%)}
.bg::before{content:"";position:absolute;inset:0;background-image:linear-gradient(var(--line) 1px,transparent 1px),linear-gradient(90deg,var(--line) 1px,transparent 1px);background-size:60px 60px;opacity:.18;mask-image:radial-gradient(ellipse at center,#000 20%,transparent 75%)}
.blob{position:absolute;width:46vmax;height:46vmax;border-radius:50%;filter:blur(90px);opacity:.28;animation:drift 22s ease-in-out infinite alternate}
.blob.b1{background:var(--a1);top:-15vmax;left:-10vmax}
.blob.b2{background:var(--a2);bottom:-20vmax;right:-12vmax;animation-delay:-8s}
.blob.b3{background:var(--a3);top:30%;left:45%;width:28vmax;height:28vmax;opacity:.16;animation-delay:-14s}
@keyframes drift{to{transform:translate(6vmax,4vmax) scale(1.12)}}

/* ===== Stage: fixed 1600x900, scaled by JS ===== */
#stage{position:absolute;left:50%;top:50%;width:1600px;height:900px;transform-origin:0 0;z-index:1}
.slide{position:absolute;inset:0;padding:64px 88px 70px;display:flex;flex-direction:column;opacity:0;visibility:hidden;transform:translateX(60px) scale(.98);transition:opacity .55s ease,transform .55s cubic-bezier(.2,.8,.2,1),visibility 0s .55s}
.slide.active{opacity:1;visibility:visible;transform:none;transition:opacity .55s ease,transform .55s cubic-bezier(.2,.8,.2,1)}
.slide.past{transform:translateX(-60px) scale(.98)}
.slide.center{justify-content:center;align-items:center;text-align:center}

/* ===== Type ===== */
.kicker{font:600 20px/1 var(--mono);letter-spacing:.18em;text-transform:uppercase;color:var(--a2);margin-bottom:14px;display:flex;align-items:center;gap:12px}
.kicker::before{content:"";width:34px;height:3px;border-radius:3px;background:var(--grad)}
.center .kicker{justify-content:center}
h1{font-size:96px;line-height:1.02;font-weight:800;letter-spacing:-.03em}
h2{font-size:58px;line-height:1.08;font-weight:750;letter-spacing:-.02em;margin-bottom:34px}
h3{font-size:28px;font-weight:700;margin-bottom:8px}
p,li{font-size:26px;line-height:1.45;color:var(--muted)}
.lead{font-size:32px;color:var(--text);max-width:1250px}
.gt{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
b,strong{color:var(--text)}
.mono{font-family:var(--mono)}
.small{font-size:20px}
.muted{color:var(--muted)}
ul.clean{list-style:none;display:grid;gap:14px}
ul.clean li{padding-left:40px;position:relative}
ul.clean li::before{content:"";position:absolute;left:6px;top:14px;width:14px;height:14px;border-radius:4px;background:var(--grad);transform:rotate(45deg)}
.c1{color:var(--a1)}.c2{color:var(--a2)}.c3{color:var(--a3)}.c4{color:var(--a4)}.c5{color:var(--a5)}.c6{color:var(--a6)}

/* ===== Layout ===== */
.row{display:flex;gap:28px;align-items:center}
.grid{display:grid;gap:24px}
.g2{grid-template-columns:repeat(2,1fr)}.g3{grid-template-columns:repeat(3,1fr)}.g4{grid-template-columns:repeat(4,1fr)}
.fill{flex:1;min-height:0}
.mt{margin-top:28px}.mb{margin-bottom:28px}

/* ===== Components ===== */
.card{background:var(--panel);border:1px solid var(--line);border-radius:22px;padding:26px 28px;backdrop-filter:blur(6px);position:relative;overflow:hidden}
.card p{font-size:22px}
.card .ic{font-size:44px;line-height:1;margin-bottom:12px;display:block}
.card.glow::after{content:"";position:absolute;inset:-1px;border-radius:inherit;padding:1px;background:var(--grad);-webkit-mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);-webkit-mask-composite:xor;mask-composite:exclude;pointer-events:none}
.tag{display:inline-block;font:600 16px/1 var(--mono);padding:7px 12px;border-radius:99px;background:rgba(139,92,246,.18);color:#c4b5fd;margin:4px 6px 0 0}
.tag.t2{background:rgba(34,211,238,.15);color:#67e8f9}.tag.t3{background:rgba(244,114,182,.15);color:#f9a8d4}.tag.t4{background:rgba(52,211,153,.15);color:#6ee7b7}.tag.t5{background:rgba(251,191,36,.15);color:#fcd34d}
.code{font:22px/1.55 var(--mono);background:#050816;border:1px solid var(--line);border-radius:18px;padding:22px 26px;color:#cbd5f5;white-space:pre-wrap;text-align:left}
.code .k{color:var(--a3)}.code .s{color:var(--a4)}.code .c{color:var(--dim)}.code .n{color:var(--a5)}
.win{border-radius:18px;overflow:hidden;border:1px solid var(--line);background:#050816}
.win>.bar{height:38px;display:flex;align-items:center;gap:8px;padding:0 16px;background:rgba(255,255,255,.05);font:15px var(--mono);color:var(--muted)}
.win>.bar i{width:12px;height:12px;border-radius:50%;background:#ff5f57}.win>.bar i:nth-child(2){background:#febc2e}.win>.bar i:nth-child(3){background:#28c840;margin-right:10px}
.win>.code{border:0;border-radius:0}
table.t{width:100%;border-collapse:separate;border-spacing:0;font-size:22px;border:1px solid var(--line);border-radius:18px;overflow:hidden}
table.t th{background:rgba(139,92,246,.18);color:var(--text);text-align:left;padding:14px 18px;font-weight:700}
table.t td{padding:12px 18px;border-top:1px solid var(--line);color:var(--muted)}
table.t td:first-child{color:var(--text);font-weight:600}
.num{font-size:120px;font-weight:800;line-height:1}
.badge{display:inline-flex;align-items:center;gap:10px;padding:10px 18px;border-radius:99px;border:1px solid var(--line);background:var(--panel);font-size:20px;color:var(--muted)}
.dot{width:10px;height:10px;border-radius:50%;background:var(--a4);box-shadow:0 0 0 0 var(--a4);animation:ping 1.6s infinite}
@keyframes ping{70%{box-shadow:0 0 0 12px transparent}100%{box-shadow:0 0 0 0 transparent}}
.section-no{font-size:220px;font-weight:900;line-height:.9;opacity:.12;position:absolute;right:70px;bottom:40px;letter-spacing:-.05em}

/* ===== Entrance animations (replay every time the slide opens) ===== */
.slide.active .up{animation:up .7s cubic-bezier(.2,.8,.2,1) both;animation-delay:calc(var(--i,0)*90ms + 120ms)}
.slide.active .pop{animation:pop .6s cubic-bezier(.3,1.5,.5,1) both;animation-delay:calc(var(--i,0)*90ms + 150ms)}
.slide.active .fade{animation:fade .9s ease both;animation-delay:calc(var(--i,0)*90ms + 150ms)}
@keyframes up{from{opacity:0;transform:translateY(34px)}}
@keyframes pop{from{opacity:0;transform:scale(.7)}}
@keyframes fade{from{opacity:0}}
.float{animation:float 5s ease-in-out infinite}
@keyframes float{50%{transform:translateY(-12px)}}

/* Step-by-step reveal (click / → shows next .f) */
.f{opacity:0;transform:translateY(18px);transition:opacity .45s,transform .45s,filter .45s}
.f.on{opacity:1;transform:none}
.f.dimmed{opacity:.35;filter:grayscale(1)}
.f.zoom{transform:scale(.85)}.f.zoom.on{transform:none}

/* Typing text */
.type{display:inline-block;overflow:hidden;white-space:nowrap;border-right:3px solid var(--a2);width:0}
.slide.active .type{animation:typing var(--d,2.4s) steps(var(--n,40)) .5s forwards,caret .8s step-end infinite}
@keyframes typing{to{width:calc(var(--n,40)*1ch)}}
@keyframes caret{50%{border-color:transparent}}

/* ===== Flow diagrams (nodes + moving packets) ===== */
.flow{display:flex;align-items:center;justify-content:space-between;gap:0;position:relative}
.node{flex:0 0 auto;width:220px;text-align:center;padding:22px 14px;border-radius:22px;background:var(--panel);border:1px solid var(--line);position:relative;z-index:2}
.node .ic{font-size:52px;display:block;margin-bottom:8px}
.node b{font-size:24px;display:block}.node span{font-size:17px;color:var(--muted)}
.wire{flex:1;height:4px;margin:0 10px;border-radius:4px;background:repeating-linear-gradient(90deg,var(--line) 0 10px,transparent 10px 18px);position:relative}
.wire .pk{position:absolute;top:50%;left:0;transform:translate(-50%,-50%);font:600 15px var(--mono);white-space:nowrap;padding:6px 12px;border-radius:99px;background:var(--a1);color:#fff;box-shadow:0 0 22px var(--a1);opacity:0}
.wire .pk.back{background:var(--a4);box-shadow:0 0 22px var(--a4);color:#04281c}
.f.on .pk,.wire.f.on .pk{animation:go 1.6s cubic-bezier(.6,0,.4,1) .1s forwards}
.f.on .pk.back{animation-name:goback}
@keyframes go{0%{left:0;opacity:0}15%{opacity:1}85%{opacity:1}100%{left:100%;opacity:0}}
@keyframes goback{0%{left:100%;opacity:0}15%{opacity:1}85%{opacity:1}100%{left:0;opacity:0}}
.wire .pk.f{transform:translate(-50%,-50%);transition:none}
.wire .pk.f.on{animation:go 1.8s cubic-bezier(.6,0,.4,1) .1s forwards}
.wire .pk.f.back.on{animation-name:goback}
.cap{font-size:22px;color:var(--text);padding:12px 18px;border-left:4px solid var(--a1);background:var(--panel);border-radius:0 12px 12px 0}
.cap b{color:var(--a2)}
.wire.loop .pk{animation:go 2.4s cubic-bezier(.6,0,.4,1) infinite}
.wire.loop .pk.back{animation:goback 2.4s cubic-bezier(.6,0,.4,1) 1.2s infinite}
/* .wire.loop is the moving line; .loop alone is the big round diagram, so keep the line's own size */
.wire.loop{width:auto;height:4px;flex:1 1 auto}

/* Vertical sequence (for OAuth etc.) */
.seq{display:grid;gap:12px}
.seq .st{display:grid;grid-template-columns:56px 1fr;gap:18px;align-items:center;padding:14px 20px;border-radius:16px;background:var(--panel);border:1px solid var(--line)}
.seq .st .n{width:46px;height:46px;border-radius:14px;display:grid;place-items:center;font-weight:800;background:var(--grad);color:#0b1020;font-size:22px}
.seq .st p{font-size:23px;color:var(--text)}
.seq .st p em{font-style:normal;color:var(--muted)}

/* Decision tree */
.q{padding:16px 22px;border-radius:16px;background:rgba(34,211,238,.08);border:1px solid rgba(34,211,238,.35);font-size:23px;color:var(--text)}
.ans{padding:16px 22px;border-radius:16px;background:rgba(52,211,153,.1);border:1px solid rgba(52,211,153,.4);font-size:23px;color:var(--text)}
.ans b{color:var(--a4)}
.arrow{color:var(--dim);font-size:28px;text-align:center}

/* DB data look */
.data{font:18px/1.5 var(--mono);color:#cbd5f5;background:#050816;border-radius:14px;padding:14px 16px;border:1px solid var(--line);white-space:pre;overflow:hidden;margin-top:12px}

/* Spreadsheet → table morph */
.sheet{display:grid;grid-template-columns:repeat(4,1fr);border:1px solid var(--line);border-radius:14px;overflow:hidden;font:20px var(--mono)}
.sheet div{padding:12px 14px;border-right:1px solid var(--line);border-bottom:1px solid var(--line);color:var(--muted)}
.sheet div.h{background:rgba(139,92,246,.2);color:var(--text);font-weight:700}
.sheet div.k{color:var(--a5)}

/* RAG pipeline */
.pipe{display:grid;grid-template-columns:repeat(5,1fr);gap:16px;align-items:stretch}
.pipe .card{text-align:center;padding:22px 16px}
.pipe .card .ic{font-size:50px}
.pipe .card p{font-size:19px}

/* Agent loop */
.loop{position:relative;width:520px;height:520px;flex:0 0 auto}
.loop .ring{position:absolute;inset:60px;border-radius:50%;border:3px dashed var(--line)}
.loop .orb{position:absolute;inset:60px;border-radius:50%;animation:spin 6s linear infinite}
.loop .orb::before{content:"";position:absolute;top:-11px;left:50%;width:22px;height:22px;margin-left:-11px;border-radius:50%;background:var(--a2);box-shadow:0 0 24px var(--a2)}
.loop .pt{position:absolute;width:170px;text-align:center;padding:16px;border-radius:18px;background:var(--bg2);border:1px solid var(--line)}
.loop .pt b{display:block;font-size:26px}.loop .pt span{font-size:17px;color:var(--muted)}
.loop .core{position:absolute;inset:190px;border-radius:50%;display:grid;place-items:center;background:var(--grad);color:#0b1020;font-weight:800;font-size:24px;text-align:center}
@keyframes spin{to{transform:rotate(360deg)}}

/* Title slide */
.hero-tag{display:inline-flex;gap:12px;align-items:center;padding:10px 20px;border-radius:99px;border:1px solid var(--line);background:var(--panel);color:var(--muted);font-size:20px;margin-bottom:34px}
.orbit{position:absolute;border-radius:50%;border:1px solid var(--line)}
.orbit i{position:absolute;top:-7px;left:50%;width:14px;height:14px;border-radius:50%;background:var(--a2);box-shadow:0 0 18px var(--a2)}
.o1{width:1100px;height:1100px;left:250px;top:-100px;animation:spin 40s linear infinite}
.o2{width:800px;height:800px;left:400px;top:50px;animation:spin 28s linear infinite reverse}
.o2 i{background:var(--a3);box-shadow:0 0 18px var(--a3)}

/* QR */
.qr{background:#fff;border-radius:22px;padding:18px;display:inline-block}
.qr img,.qr svg{display:block;width:300px;height:300px}

/* ===== Board layers ===== */
#ink{position:absolute;inset:0;width:100%;height:100%;z-index:20;pointer-events:none}
#laser{position:absolute;inset:0;width:100%;height:100%;z-index:21;pointer-events:none}
body.tool #ink{pointer-events:auto;cursor:crosshair}
body.tool-laser #ink,body.tool-spot #ink{cursor:none}
#wb{position:absolute;inset:0;z-index:15;background:#fbfbf7;opacity:0;pointer-events:none;transition:opacity .3s;border-radius:6px}
body.wb #wb{opacity:1}
body.wb .slide.active{opacity:0}
#spot{position:fixed;inset:0;z-index:30;pointer-events:none;opacity:0;transition:opacity .25s;background:radial-gradient(circle var(--r,170px) at var(--x,50%) var(--y,50%),transparent 96%,rgba(0,0,0,.82) 100%)}
body.tool-spot #spot{opacity:1}
#black{position:fixed;inset:0;background:#000;z-index:60;display:none}
body.black #black{display:block}

/* ===== Chrome: progress, toolbar, timer, overview ===== */
#progress{position:fixed;left:0;bottom:0;height:4px;background:var(--grad);z-index:40;transition:width .4s}
#count{position:fixed;right:18px;bottom:14px;z-index:40;font:600 14px var(--mono);color:var(--dim)}
#bar{position:fixed;left:50%;bottom:16px;transform:translateX(-50%);z-index:50;display:flex;align-items:center;gap:4px;padding:6px;border-radius:16px;background:rgba(13,20,48,.88);border:1px solid var(--line);backdrop-filter:blur(10px);transition:opacity .3s,transform .3s}
body.idle:not(.tool) #bar:not(:hover){opacity:0;transform:translate(-50%,20px)}
#bar button{all:unset;cursor:pointer;width:40px;height:40px;border-radius:11px;display:grid;place-items:center;color:var(--muted);font-size:19px;position:relative}
#bar button:hover{background:rgba(255,255,255,.08);color:var(--text)}
#bar button.on{background:var(--a1);color:#fff}
#bar button[data-tip]:hover::after{content:attr(data-tip);position:absolute;bottom:50px;left:50%;transform:translateX(-50%);white-space:nowrap;font:13px var(--font);padding:6px 9px;border-radius:8px;background:#000;color:#fff}
#bar .sep{width:1px;height:26px;background:var(--line);margin:0 4px}
#bar .sw{width:22px;height:22px;border-radius:50%;border:2px solid transparent;cursor:pointer}
#bar .sw.on{border-color:#fff}
#bar svg{width:20px;height:20px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
#fab{display:none}
#timer{position:fixed;top:14px;right:16px;z-index:50;font:600 16px var(--mono);padding:8px 14px;border-radius:12px;background:rgba(13,20,48,.88);border:1px solid var(--line);display:none;gap:10px;align-items:center}
body.timer #timer{display:flex}
#timer .ok{color:var(--a4)}#timer .late{color:var(--a6)}
#goto{position:fixed;top:14px;left:50%;transform:translateX(-50%);z-index:55;font:600 22px var(--mono);padding:8px 16px;border-radius:12px;background:var(--a1);display:none}
#ov{position:fixed;inset:0;z-index:70;background:rgba(7,11,24,.96);overflow:auto;padding:30px;display:none}
body.ov #ov{display:block}
#ov .ovg{display:grid;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:14px;max-width:1500px;margin:0 auto}
#ov a{display:block;padding:16px;border-radius:14px;background:var(--panel);border:1px solid var(--line);color:var(--text);text-decoration:none;font-size:16px;min-height:96px}
#ov a small{display:block;color:var(--a2);font:600 12px var(--mono);letter-spacing:.1em;margin-bottom:6px}
#ov a.cur{border-color:var(--a1);background:rgba(139,92,246,.18)}
#ov h4{max-width:1500px;margin:0 auto 18px;font-size:22px;display:flex;justify-content:space-between}
#help{position:fixed;inset:0;z-index:80;display:none;place-items:center;background:rgba(0,0,0,.6)}
body.help #help{display:grid}
#help .box{background:var(--bg2);border:1px solid var(--line);border-radius:20px;padding:28px 32px;max-width:640px;width:calc(100% - 32px);max-height:90vh;overflow:auto}
#help h4{font-size:22px;margin-bottom:14px}
#help dl{display:grid;grid-template-columns:auto 1fr;gap:8px 18px;font-size:16px}
#help dt{font:600 15px var(--mono);color:var(--a2)}
#help dd{color:var(--muted)}
#toast{position:fixed;top:20px;left:50%;transform:translate(-50%,-80px);z-index:90;padding:10px 18px;border-radius:12px;background:var(--a1);color:#fff;font-size:15px;transition:transform .3s}
#toast.show{transform:translate(-50%,0)}

/* ===== Phones ===== */
@media (max-width:760px),(pointer:coarse) and (max-height:500px){
  #bar{flex-wrap:wrap;justify-content:center;max-width:calc(100vw - 24px);bottom:66px;display:none}
  body.bar-open #bar{display:flex;opacity:1!important;transform:translateX(-50%)!important}   /* never fade out while opened with the pencil */
  #fab{all:unset;position:fixed;right:14px;bottom:14px;z-index:51;width:48px;height:48px;border-radius:50%;background:var(--a1);display:grid;place-items:center;color:#fff;font-size:22px;box-shadow:0 6px 20px rgba(0,0,0,.4)}
  #count{left:calc(14px + env(safe-area-inset-left));right:auto;bottom:calc(14px + env(safe-area-inset-bottom))}
  #fab{right:calc(14px + env(safe-area-inset-right));bottom:calc(14px + env(safe-area-inset-bottom))}
}

/* phone held upright: small hint to turn it sideways */
body.turn::after{content:'\21BB  Turn your phone sideways for the full slide';position:fixed;top:calc(12px + env(safe-area-inset-top));left:50%;transform:translateX(-50%);z-index:60;padding:8px 14px;border-radius:12px;background:var(--a1);color:#fff;font:600 14px var(--font);white-space:nowrap;pointer-events:none}

/* ===== Print = PDF backup (one slide per page) ===== */
@media print{
  @page{size:1600px 900px;margin:0}
  html,body{overflow:visible;height:auto}
  .bg,#bar,#fab,#progress,#count,#timer,#ink,#laser,#spot,#wb{display:none!important}
  #stage{position:static;transform:none!important;width:1600px;height:auto}
  .slide{position:relative;height:900px;opacity:1;visibility:visible;transform:none;page-break-after:always;background:var(--bg)}
  .f{opacity:1;transform:none}
  .type{width:auto;border:0}
  *{-webkit-print-color-adjust:exact;print-color-adjust:exact}
}
body.static *{animation:none!important;transition:none!important}
body.static .type{width:auto;border:0}
@media (prefers-reduced-motion:reduce){*{animation-duration:.01ms!important;transition-duration:.01ms!important}}
.dtree .q,.dtree .ans{padding:11px 20px;font-size:21px}
.slide .node{width:240px;padding:28px 14px}
.pipe .card{padding:34px 18px}.pipe .card p{font-size:21px}
.pipe .card:not(:last-child)::before{content:"→";position:absolute;right:-4px;top:50%;transform:translateY(-50%);color:var(--dim);font-size:22px}
@media (max-width:1100px){#bar{flex-wrap:wrap;justify-content:center;max-width:calc(100vw - 24px)}}

/* ===== Portrait phones: the stage becomes 720x1280 and side-by-side blocks stack (deck.js adds body.portrait) ===== */
body.portrait .slide{padding:54px 32px 120px}
body.portrait h1{font-size:64px}
body.portrait h2{font-size:42px;margin-bottom:22px}
body.portrait .kicker{font-size:17px}
body.portrait .lead{max-width:none;font-size:28px}
body.portrait .row,body.portrait .scene{flex-direction:column;align-items:stretch;gap:20px!important}
body.portrait .row>*,body.portrait .scene>*{flex:none!important;max-width:100%}
body.portrait .g2{grid-template-columns:1fr}
body.portrait .g3,body.portrait .g4{grid-template-columns:repeat(2,1fr)}
body.portrait .pipe{grid-template-columns:repeat(3,1fr)!important}
body.portrait .pipe .card:nth-child(3n)::before{display:none}
body.portrait .node{width:140px;padding:16px 8px}
body.portrait .section-no{font-size:130px;right:28px;bottom:110px}
body.portrait .fill{flex:none}
body.portrait .scene:has(> .glideL){flex-direction:row;flex-wrap:wrap;justify-content:center;align-items:flex-start;gap:16px 28px!important}
body.portrait .flow .node{width:auto!important;min-width:0;padding:12px 10px}
body.portrait .flow.mini .node b{font-size:19px}
body.portrait .flow .wire{min-width:16px;margin:0 4px}
/* closure-table slides: tree on top, then the table and the notes side by side */
body.portrait .row:has(> svg.tree){flex-direction:row;flex-wrap:wrap;gap:14px 20px!important}
body.portrait .row:has(> svg.tree)>svg.tree{flex:0 0 100%!important;height:210px!important}
body.portrait .row:has(> svg.tree)>.caps{flex:1 1 0!important;min-width:0}
body.portrait .card ul.clean{gap:8px}
body.portrait .card ul.clean li{font-size:21px;padding-left:32px}
body.portrait .card ul.clean li::before{top:11px;width:11px;height:11px}