/* ==========================================================================
   Tangle — landing
   The page is a chat: every chapter sits on one of the app's real chat papers
   (dots, graph, ruled, stardust…) and every feature is a toy, not a card.

   Tokens → base → components → chapters → motion → responsive
   The ten paper themes at the bottom of the "themes" block are generated from
   mobile/lib/core/theme/chat_theme.dart (see tools/gen_themes.py).
   ========================================================================== */

@font-face{font-family:"Plus Jakarta Sans";font-weight:400;font-style:normal;font-display:swap;src:url("assets/fonts/PlusJakartaSans-Regular.woff") format("woff")}
@font-face{font-family:"Plus Jakarta Sans";font-weight:500;font-style:normal;font-display:swap;src:url("assets/fonts/PlusJakartaSans-Medium.woff") format("woff")}
@font-face{font-family:"Plus Jakarta Sans";font-weight:600;font-style:normal;font-display:swap;src:url("assets/fonts/PlusJakartaSans-SemiBold.woff") format("woff")}
@font-face{font-family:"Plus Jakarta Sans";font-weight:700;font-style:normal;font-display:swap;src:url("assets/fonts/PlusJakartaSans-Bold.woff") format("woff")}
@font-face{font-family:"Plus Jakarta Sans";font-weight:800;font-style:normal;font-display:swap;src:url("assets/fonts/PlusJakartaSans-ExtraBold.woff") format("woff")}

:root{
  color-scheme:light;
  --sat:env(safe-area-inset-top,0px);
  --sab:env(safe-area-inset-bottom,0px);
  --sal:env(safe-area-inset-left,0px);
  --sar:env(safe-area-inset-right,0px);
  --ink:#151c22;            /* app text */
  --ink-2:#475569;          /* secondary text, 7.6:1 on white */
  --ink-3:#64748b;
  --blue:#02a3fe;           /* Electric sky blue */
  --blue-deep:#0170b0;
  --blue-wash:#e6f5fe;
  --blush:#fce1e4;
  --mint:#e2f9fc;
  --butter:#fff8d9;
  --plum:#421422;
  --rose:#e87a8a;
  --line:rgba(21,28,34,.09);

  --spring:cubic-bezier(.34,1.56,.64,1);   /* playful overshoot */
  --ease:cubic-bezier(.2,.8,.2,1);
  --r-card:28px;
  --font:"Plus Jakarta Sans",ui-sans-serif,system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;

  /* default paper = Classic Dots (overridden per [data-theme]) */
  --page:#fff;--pat:#e2e8f0;--accent:#3b82f6;
  --out-bg:#d6e6fa;--out-bd:#b0cdf2;--in-bg:#fff;--in-bd:#cad5e2;
  --out-ink:#0f1a29;--in-ink:#141f2e;--tick:#0950c3;--link:#114497;
  --paper-img:radial-gradient(circle at center,var(--pat) 1.25px,transparent 1.75px);--paper-size:22px 22px;
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;scroll-padding-top:84px;overflow-x:hidden}
body{margin:0;font-family:var(--font);font-size:17px;line-height:1.55;color:var(--ink);background:#fff;overflow-x:hidden;width:100%;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
img,svg,canvas{display:block;max-width:100%}
button{font:inherit;color:inherit;cursor:pointer;border:0;background:none;padding:0}
h1,h2,h3,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
a{color:inherit;text-decoration:none}
:focus-visible{outline:3px solid var(--blue);outline-offset:3px;border-radius:10px}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.skip{position:fixed;left:16px;top:-60px;z-index:100;background:var(--ink);color:#fff;padding:12px 18px;border-radius:12px;font-weight:700;transition:top .2s}
.skip:focus{top:16px}

.wrap,.container{width:min(1200px,calc(100% - 48px));margin-inline:auto}
.paper{background-color:var(--page);background-image:var(--paper-img);background-size:var(--paper-size)}
.ic{width:22px;height:22px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}

/* ---------- type ---------- */
h1,h2{font-weight:800;letter-spacing:-.045em;line-height:.98;text-wrap:balance}
h1{font-size:clamp(50px,7.4vw,104px)}
h2{font-size:clamp(40px,5.8vw,80px)}
h3{font-weight:800;letter-spacing:-.02em;line-height:1.2}
.lead{font-size:clamp(18px,1.7vw,22px);line-height:1.55;color:var(--ink-2);max-width:34em;text-wrap:pretty}
.lead em{font-style:normal;color:var(--ink);font-weight:700;background:linear-gradient(transparent 62%,rgba(90,204,216,.45) 62%)}
.fine{font-size:14px;color:var(--ink-3);font-weight:500}
.fine.light{color:rgba(255,255,255,.82)}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;height:48px;padding:0 22px;border-radius:999px;font-weight:700;font-size:15px;letter-spacing:-.005em;white-space:nowrap;transition:transform .35s var(--spring),box-shadow .25s,background .2s;-webkit-tap-highlight-color:transparent}
.btn svg{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.btn:hover{transform:translateY(-2px)}
.btn:active{transform:scale(.96)}
.btn-lg{height:58px;padding:0 28px;font-size:16.5px}
.btn-sm{height:38px;padding:0 16px;font-size:14px}
.btn-primary{background:var(--blue);color:#fff;box-shadow:0 1px 0 rgba(255,255,255,.25) inset,0 10px 24px -8px rgba(13,116,180,.6)}
.btn-primary:hover{background:var(--blue-deep);box-shadow:0 1px 0 rgba(255,255,255,.2) inset,0 16px 30px -10px rgba(13,116,180,.7)}
.btn-ghost{background:rgba(255,255,255,.78);border:1.5px solid rgba(21,28,34,.14);backdrop-filter:blur(8px)}
.btn-ghost:hover{background:#fff;border-color:rgba(21,28,34,.3)}
.btn-white{background:#fff;color:var(--blue-deep);box-shadow:0 14px 30px -12px rgba(0,0,0,.35)}
.btn-outline{border:1.5px solid rgba(255,255,255,.7);color:#fff}
.btn-plum{background:var(--plum);color:#fff;box-shadow:0 12px 26px -10px rgba(66,20,34,.6)}
.btn-plum:hover{background:#5a1c30}
.btn.is-disabled{opacity:.8;cursor:default}
.btn.is-disabled:hover{transform:none}
.link-btn{display:block;margin:18px auto 0;font-weight:700;font-size:14px;color:var(--ink-2);text-decoration:underline;text-underline-offset:4px}
.link-btn:hover{color:var(--blue)}

.chip{display:inline-flex;align-items:center;gap:8px;padding:8px 15px;border-radius:999px;font-weight:700;font-size:14px;border:1px solid rgba(21,28,34,.06)}
.chip-mint{background:#e2f9fc;color:#0b5560}
.chip-butter{background:#fff8d9;color:#6b4a00}
.chip-blush{background:#fce1e4;color:#7a1730}

/* ---------- nav: a floating pill ---------- */
.nav{position:fixed;z-index:50;top:14px;left:50%;transform:translateX(-50%);width:min(1040px,calc(100% - 24px));height:58px;padding:0 10px 0 16px;display:flex;align-items:center;gap:20px;border-radius:999px;background:rgba(255,255,255,.74);backdrop-filter:saturate(180%) blur(20px);-webkit-backdrop-filter:saturate(180%) blur(20px);border:1px solid rgba(21,28,34,.07);box-shadow:0 8px 30px -12px rgba(8,79,125,.25);transition:box-shadow .3s,background .3s}
.nav.is-scrolled{background:rgba(255,255,255,.9);box-shadow:0 12px 36px -12px rgba(8,79,125,.35)}
.brand{display:inline-flex;align-items:center;gap:9px;font-weight:800;font-size:20px;letter-spacing:-.04em}
.brand img{width:30px;height:30px;border-radius:9px}
.nav-links{display:flex;gap:6px;margin-left:auto}
.nav-links a{padding:8px 14px;border-radius:999px;font-weight:600;font-size:14.5px;color:var(--ink-2);transition:background .2s,color .2s}
.nav-links a:hover{background:rgba(21,28,34,.06);color:var(--ink)}
.nav .btn{margin-left:0}

/* ==========================================================================
   Phone + chat (shared by hero and papers chapter)
   ========================================================================== */
.phone{--w:320px;width:var(--w);aspect-ratio:9/18.6;border-radius:50px;padding:9px;background:linear-gradient(145deg,#2c353d,#0f1418);box-shadow:0 0 0 1.5px #44505a inset,0 50px 90px -30px rgba(8,79,125,.55),0 18px 30px -12px rgba(21,28,34,.3);position:relative;flex:none}
.phone-screen{height:100%;border-radius:41px;overflow:hidden;display:flex;flex-direction:column;position:relative;isolation:isolate}
.phone-screen::before{content:"";position:absolute;z-index:5;top:9px;left:50%;width:92px;height:26px;border-radius:20px;background:#0b0f12;transform:translateX(-50%)}
.statusbar{display:flex;justify-content:space-between;align-items:center;height:46px;padding:6px 26px 0 28px;font-size:13px;font-weight:700;position:relative;z-index:4}
.sb-dots{display:flex;gap:3px}.sb-dots i{width:5px;height:5px;border-radius:50%;background:var(--ink)}
.chat-head{display:flex;align-items:center;gap:10px;padding:6px 14px 10px;background:rgba(255,255,255,.78);backdrop-filter:blur(10px);border-bottom:1px solid rgba(21,28,34,.06);position:relative;z-index:3}
.chat-head .ic{width:22px;height:22px;color:var(--ink)}
.avatar{width:34px;height:34px;border-radius:50%;display:grid;place-items:center;background:var(--blush);color:var(--plum);font-weight:800;font-size:14px}
.who{display:flex;flex-direction:column;line-height:1.2}.who b{font-size:15px;font-weight:700}.who small{font-size:12px;color:var(--ink-3)}
.chat-body{flex:1;min-height:0;display:flex;flex-direction:column;justify-content:flex-end;gap:9px;padding:14px 14px 10px;overflow:hidden;-webkit-mask-image:linear-gradient(to bottom,transparent 0,#000 34px);mask-image:linear-gradient(to bottom,transparent 0,#000 34px)}
.composer{display:flex;align-items:center;gap:8px;padding:8px 12px 20px;background:linear-gradient(transparent,rgba(255,255,255,.7) 40%)}
.c-btn{width:40px;height:40px;border-radius:50%;display:grid;place-items:center;background:rgba(255,255,255,.92);border:1px solid rgba(21,28,34,.08);color:var(--ink);flex:none}
.c-btn .ic{width:19px;height:19px}
.c-input{flex:1;height:42px;border-radius:21px;background:#fff;border:1px solid rgba(21,28,34,.08);display:flex;align-items:center;padding:0 16px;font-size:14.5px;color:#94a3b8}

.msg{position:relative;max-width:84%;font-size:15px;line-height:1.35;font-weight:500}
.msg p{padding:9px 15px;border-radius:20px;border:1px solid;box-shadow:0 1.5px 3px rgba(21,28,34,.05)}
.msg.in{align-self:flex-start}
.msg.in p{background:var(--in-bg);border-color:var(--in-bd);color:var(--in-ink)}
.msg.out{align-self:flex-end}
.msg.out p{background:var(--out-bg);border-color:var(--out-bd);color:var(--out-ink);padding-right:36px}
.ticks{position:absolute;right:13px;bottom:11px;width:14px;height:9px}
.ticks::before,.ticks::after{content:"";position:absolute;bottom:0;width:5px;height:9px;border:solid var(--tick);border-width:0 2px 2px 0;transform:rotate(40deg) scale(.8);transform-origin:bottom right}
.ticks::before{left:1px}.ticks::after{left:6px}

.msg.doodle{padding:2px 4px 6px}
.heart{width:128px;height:118px;overflow:visible;filter:drop-shadow(0 5px 7px rgba(8,79,125,.2))}
.heart path{fill:none;stroke-linecap:round;stroke-linejoin:round;stroke-dasharray:1;stroke-dashoffset:0}
.heart .diecut path{stroke:#fff;stroke-width:14}
.heart .ink path{stroke:#4fc3d0;stroke-width:5.2}
.reaction{position:absolute;right:-6px;bottom:-2px;width:30px;height:30px;border-radius:50%;display:grid;place-items:center;font-size:16px;background:#fff;border:1px solid rgba(21,28,34,.1);box-shadow:0 4px 10px -2px rgba(21,28,34,.25)}
.js .reaction{transform:scale(0)}
.reaction.is-on{transform:scale(1);transition:transform .5s var(--spring)}

.has-sticker{margin-bottom:18px}
.stuck{position:absolute;right:-22px;bottom:-30px;width:66px;height:auto;transform:rotate(10deg);filter:drop-shadow(2px 0 0 #fff) drop-shadow(-2px 0 0 #fff) drop-shadow(0 2px 0 #fff) drop-shadow(0 -2px 0 #fff) drop-shadow(0 6px 8px rgba(21,28,34,.25));pointer-events:none}
.jumbo{align-self:flex-end;position:relative;font-size:58px;line-height:1;padding:0 6px}
.burst{position:absolute;left:50%;top:50%;font-size:22px;line-height:1;pointer-events:none;will-change:transform,opacity;z-index:6}

/* scripted reveal: hidden until the script shows each step */
.js [data-scripted] > [data-step]{display:none}
.js [data-scripted] > [data-step].is-in{display:block;animation:msg-in .55s var(--spring) both}
.js [data-scripted] > .msg.is-in,.js [data-scripted] > .jumbo.is-in{display:block}
.typing{align-self:flex-start;display:flex;gap:5px;padding:13px 16px;border-radius:20px;background:var(--in-bg);border:1px solid var(--in-bd);animation:msg-in .4s var(--spring) both}
.typing.out{align-self:flex-end;background:var(--out-bg);border-color:var(--out-bd)}
.typing i{width:7px;height:7px;border-radius:50%;background:var(--ink-3);animation:blink 1s infinite}
.typing i:nth-child(2){animation-delay:.15s}.typing i:nth-child(3){animation-delay:.3s}
@keyframes blink{0%,60%,100%{transform:none;opacity:.45}30%{transform:translateY(-4px);opacity:1}}
@keyframes msg-in{from{opacity:0;transform:translateY(14px) scale(.9)}to{opacity:1;transform:none}}

/* bubble vibes (the papers chapter) */
.phone[data-vibe="sketch"] .msg p{border-width:2px;border-color:var(--in-ink);border-radius:18px 22px 17px 21px/21px 17px 22px 18px;box-shadow:3px 3px 0 color-mix(in srgb,var(--accent) 55%,transparent);font-weight:600}
.phone[data-vibe="sketch"] .msg.out p{border-color:var(--out-ink)}
.phone[data-vibe="sketch"] .msg.in{transform:rotate(-.7deg)}.phone[data-vibe="sketch"] .msg.out{transform:rotate(.7deg)}
.phone[data-vibe="pop"] .msg p{border-width:2.5px;border-color:var(--accent);border-radius:22px;box-shadow:4px 4px 0 var(--accent);font-weight:800;letter-spacing:-.01em}
.phone[data-vibe="pop"] .msg.out p{background:color-mix(in srgb,var(--accent) 20%,#fff)}
.phone[data-vibe="pop"] .msg::after{content:"✦";position:absolute;top:-9px;right:-6px;font-size:16px;color:var(--accent)}
.phone[data-vibe="pop"] .msg.in{transform:rotate(-1.2deg)}.phone[data-vibe="pop"] .msg.out{transform:rotate(1.2deg)}
.phone[data-vibe="pop"] .msg.has-sticker::after{display:none}
.msg{transition:transform .5s var(--spring)}
.msg p{transition:background .4s,border-color .4s,box-shadow .4s,color .4s}

/* ==========================================================================
   0 · Hero
   ========================================================================== */
.hero{position:relative;min-height:100svh;padding:132px 0 90px;overflow:hidden;display:flex;align-items:center}
.hero::after{content:"";position:absolute;inset:auto 0 0 0;height:160px;background:linear-gradient(transparent,var(--page));pointer-events:none}
.hero-grid{display:grid;grid-template-columns:minmax(0,1.08fr) minmax(0,.92fr);gap:40px;align-items:center;width:min(1240px,calc(100% - 48px))}
.hero-copy{position:relative;z-index:2}
.hero-copy>*+*{margin-top:26px}
.status-pill{display:inline-flex;align-items:center;gap:10px;padding:8px 16px 8px 12px;border-radius:999px;background:rgba(255,255,255,.88);border:1px solid var(--line);font-size:13.5px;font-weight:600;color:var(--ink-2);box-shadow:0 6px 16px -10px rgba(21,28,34,.3)}
.status-pill i{width:9px;height:9px;border-radius:50%;background:#22c55e;box-shadow:0 0 0 0 rgba(34,197,94,.5);animation:ping 2.2s infinite}
.status-pill b{color:var(--ink-3)}
@keyframes ping{70%{box-shadow:0 0 0 9px rgba(34,197,94,0)}100%{box-shadow:0 0 0 0 rgba(34,197,94,0)}}
.hero h1{margin-top:22px}
.scribble{position:relative;display:inline-block;color:var(--blue)}
.scribble svg{position:absolute;left:-2%;right:-2%;bottom:-.14em;width:104%;height:.3em;overflow:visible}
.scribble path{fill:none;stroke:var(--rose);stroke-width:7;stroke-linecap:round;stroke-dasharray:1;stroke-dashoffset:1;animation:draw 1.1s .8s var(--ease) forwards}
@keyframes draw{to{stroke-dashoffset:0}}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;align-items:center}
.hero-cta.center{justify-content:center}
.hero-stage{position:relative;display:flex;justify-content:center;align-items:center;min-height:680px}
.replay{position:absolute;left:50%;bottom:-6px;transform:translateX(-50%);padding:9px 16px;border-radius:999px;background:#fff;border:1px solid var(--line);font-weight:700;font-size:13.5px;box-shadow:0 8px 20px -10px rgba(21,28,34,.4);z-index:7;transition:transform .3s var(--spring)}
.replay:hover{transform:translateX(-50%) translateY(-2px)}
.replay[hidden]{display:none}

.float-sticker{--x:0px;--y:0px;--r:0deg;--s:1;position:absolute;z-index:4;cursor:grab;touch-action:none;transform:translate(var(--x),var(--y)) rotate(var(--r)) scale(var(--s));transition:transform .6s var(--spring);-webkit-tap-highlight-color:transparent;user-select:none}
.float-sticker img{pointer-events:none;height:auto;filter:drop-shadow(3px 0 0 #fff) drop-shadow(-3px 0 0 #fff) drop-shadow(0 3px 0 #fff) drop-shadow(0 -3px 0 #fff) drop-shadow(0 14px 14px rgba(8,79,125,.28))}
.float-sticker.is-drag{--s:1.12;cursor:grabbing;transition:none;z-index:8}
.s1{left:-3%;top:8%;--r:-10deg;width:clamp(96px,11vw,140px)}
.s2{right:-4%;top:3%;--r:8deg;width:clamp(108px,12vw,156px)}
.s3{left:-7%;bottom:12%;--r:-7deg;width:clamp(108px,12vw,150px)}
.s4{right:-3%;bottom:7%;--r:6deg;width:clamp(92px,10.5vw,128px)}
.float-sticker:hover{--s:1.05}
.drag-tip{position:absolute;left:8%;top:27%;z-index:5;font-weight:700;font-style:italic;font-size:15px;color:var(--blue);display:flex;align-items:flex-start;gap:4px;transform:rotate(-8deg);transition:opacity .4s;pointer-events:none}
.drag-tip svg{width:48px;height:34px;fill:none;stroke:var(--blue);stroke-width:2.2;stroke-linecap:round;stroke-linejoin:round;margin-top:12px}
.drag-tip.is-gone{opacity:0}

/* ==========================================================================
   Chapters
   ========================================================================== */
.chapter{position:relative;padding:clamp(84px,12vw,160px) 0}
.chapter-head{text-align:center;max-width:820px;margin-inline:auto}
.chapter-head .chip{margin-bottom:22px}
.chapter-head h2{margin-bottom:24px}
.chapter-head .lead{margin-inline:auto}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);box-shadow:0 1px 0 rgba(21,28,34,.04),0 28px 56px -28px rgba(8,79,125,.32)}

/* 1 · Doodle */
.doodle-stage{display:grid;grid-template-columns:minmax(0,1.2fr) 96px minmax(0,.8fr);align-items:center;gap:6px;max-width:1060px;margin:64px auto 0}
.pad{padding:14px 14px 16px}
.pad-tools{display:flex;align-items:center;gap:10px;padding:2px 4px 12px}
.swatches{display:flex;gap:12px;padding-left:4px}
.swatch{width:28px;height:28px;border-radius:50%;background:var(--c);box-shadow:0 0 0 2px #fff,0 0 0 3.5px rgba(21,28,34,.14);transition:transform .35s var(--spring),box-shadow .2s}
.swatch:hover{transform:scale(1.15)}
.swatch.is-on{box-shadow:0 0 0 2px #fff,0 0 0 4.5px var(--c);transform:scale(1.1)}
.tool-gap{flex:1}
.tool{width:40px;height:40px;border-radius:50%;display:grid;place-items:center;border:1px solid var(--line);background:#fff;color:var(--ink-2);transition:transform .3s var(--spring),background .2s}
.tool:hover{background:var(--blue-wash);color:var(--blue-deep);transform:translateY(-1px)}
.tool:active{transform:scale(.92)}
.pad-surface{position:relative;height:clamp(250px,30vw,340px);border-radius:20px;border:1.5px dashed rgba(21,28,34,.16);background:#fff radial-gradient(circle at center,#dfe6ee 1.2px,transparent 1.7px);background-size:22px 22px;overflow:hidden}
.pad-surface canvas{position:absolute;inset:0;width:100%;height:100%;touch-action:none;cursor:crosshair}
.pad-hint{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);display:flex;align-items:center;gap:10px;color:var(--ink-3);font-weight:600;font-style:italic;font-size:18px;pointer-events:none;transition:opacity .3s}
.pad-hint svg{width:48px;height:32px;fill:none;stroke:currentColor;stroke-width:2.2;stroke-linecap:round;stroke-linejoin:round;transform:rotate(-14deg)}
.pad-surface.has-ink .pad-hint{opacity:0}
.pad-actions{display:flex;justify-content:space-between;gap:12px;padding-top:14px}
.hop svg{width:100%;height:60px;fill:none;stroke:var(--blue);stroke-width:2.6;stroke-linecap:round;stroke-linejoin:round;stroke-dasharray:1;stroke-dashoffset:0;overflow:visible}
.hop svg path{stroke-dasharray:1;stroke-dashoffset:0}
.hop.go path{animation:draw-hop .9s var(--ease)}
@keyframes draw-hop{from{stroke-dashoffset:1}to{stroke-dashoffset:0}}
.recv{align-self:center}
.recv-cap{text-align:center;font-weight:700;font-size:14px;color:var(--ink-2);margin-bottom:12px}
.recv-screen{border-radius:var(--r-card);border:1px solid var(--line);box-shadow:0 28px 56px -28px rgba(8,79,125,.4);padding:22px 20px 20px;min-height:300px;display:flex;flex-direction:column;align-items:flex-start;justify-content:center;gap:14px;position:relative}
.recv-empty{color:var(--ink-3);font-weight:600;align-self:center;text-align:center}
.doodle-msg{padding:0}
.doodle-msg[hidden],.recv-empty[hidden]{display:none}
.doodle-msg canvas{width:min(100%,290px);aspect-ratio:290/230;filter:drop-shadow(0 6px 8px rgba(8,79,125,.2))}
.doodle-msg .reaction{right:-4px;bottom:-6px}
.recv-screen .btn{align-self:center}

/* 2 · Stickers */
.scene-wrap{max-width:880px;margin:64px auto 0}
.scene{position:relative;height:clamp(380px,52vw,470px);border-radius:34px;background:#fff;border:1px solid var(--line);box-shadow:0 36px 70px -34px rgba(120,80,0,.4);overflow:hidden;touch-action:none;user-select:none;display:grid;place-items:center}
.scene-inner{display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:18px;padding:28px;width:100%}
.scene-inner .msg{max-width:100%}
.scene-inner .msg.in{justify-self:end}.scene-inner .msg.out{justify-self:start}
.scene-inner .msg p{font-size:15.5px}
.polaroid{width:clamp(190px,26vw,250px);padding:12px 12px 14px;background:#fff;border:1px solid var(--line);box-shadow:0 20px 40px -18px rgba(21,28,34,.4);transform:rotate(-3deg)}
.photo{position:relative;height:clamp(130px,17vw,170px);overflow:hidden;border-radius:3px;background:linear-gradient(#8fd0ff 0%,#cfeaff 46%,#ffe0bd 100%)}
.photo .sun{position:absolute;right:22%;top:22%;width:34px;height:34px;border-radius:50%;background:#ffb43c;box-shadow:0 0 0 8px rgba(255,180,60,.25)}
.photo .hill{position:absolute;bottom:-30%;border-radius:50%}
.photo .h1{left:-20%;width:90%;height:80%;background:#5fb36b}
.photo .h2{right:-25%;width:95%;height:70%;background:#3f9a63}
.photo .cloud{position:absolute;left:14%;top:18%;width:54px;height:16px;border-radius:99px;background:#fff;box-shadow:16px -7px 0 -1px #fff}
.polaroid figcaption{margin-top:12px;text-align:center;font-weight:700;font-style:italic;font-size:15px;color:var(--ink-2)}
.scene-hint{position:absolute;left:50%;bottom:14px;transform:translateX(-50%);padding:7px 15px;border-radius:999px;background:rgba(21,28,34,.82);color:#fff;font-size:13px;font-weight:600;white-space:nowrap;pointer-events:none;transition:opacity .4s}
.scene-hint.is-gone{opacity:0}
.scene.is-over{box-shadow:0 0 0 4px rgba(13,116,180,.35),0 36px 70px -34px rgba(120,80,0,.4)}
.placed{position:absolute;z-index:3;transform:translate(-50%,-50%) rotate(var(--r,0deg)) scale(var(--s,1));cursor:grab;touch-action:none;line-height:1;transition:filter .2s}
.placed img{width:clamp(78px,10vw,104px);height:auto;pointer-events:none;filter:drop-shadow(2px 0 0 #fff) drop-shadow(-2px 0 0 #fff) drop-shadow(0 2px 0 #fff) drop-shadow(0 -2px 0 #fff) drop-shadow(0 8px 8px rgba(21,28,34,.28))}
.placed.emoji{font-size:clamp(40px,6vw,56px);filter:drop-shadow(0 6px 6px rgba(21,28,34,.25))}
.placed.is-drag{cursor:grabbing;--s:1.14;z-index:9}
.ghost{position:fixed;z-index:200;left:0;top:0;pointer-events:none;transform:translate(-50%,-50%) scale(1.15) rotate(-6deg);line-height:1}
.ghost img{width:92px;height:auto;filter:drop-shadow(0 12px 12px rgba(21,28,34,.3))}
.ghost.emoji{font-size:54px}
.dock{--pad:12px;display:flex;align-items:flex-end;gap:8px;width:fit-content;max-width:100%;margin:26px auto 0;padding:var(--pad) 16px;border-radius:30px;background:rgba(255,255,255,.82);backdrop-filter:blur(14px);border:1px solid var(--line);box-shadow:0 24px 44px -22px rgba(21,28,34,.4);overflow-x:auto;scrollbar-width:none}
.dock::-webkit-scrollbar{display:none}
.dock-item{--m:1;width:58px;height:58px;flex:none;border-radius:18px;display:grid;place-items:center;background:#fff;border:1px solid var(--line);transform:translateY(calc((var(--m) - 1) * -22px)) scale(var(--m));transform-origin:bottom center;transition:transform .16s var(--ease);cursor:grab;touch-action:none;box-shadow:0 2px 6px -2px rgba(21,28,34,.15)}
.dock-item img{width:44px;height:auto;max-height:44px;object-fit:contain;pointer-events:none}
.dock-item.emoji span{font-size:30px;line-height:1;pointer-events:none}
.dock-sep{align-self:center;width:1px;height:38px;background:var(--line);margin:0 4px;flex:none}

/* 3 · Papers */
.papers{transition:background-color .5s}
.papers-grid{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);gap:72px;align-items:center}
.papers-copy .chip{margin-bottom:22px}
.papers-copy h2{margin-bottom:22px}
.ctl-label{margin:34px 0 12px;font-weight:700;font-size:14px;color:var(--ink-2)}
.theme-chips{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:10px;max-width:520px}
.theme-chip{display:grid;justify-items:center;gap:7px;padding:10px 2px 9px;border-radius:18px;background:rgba(255,255,255,.7);border:2px solid transparent;font-size:12px;font-weight:700;color:var(--ink-2);transition:transform .35s var(--spring),border-color .2s,background .2s}
.theme-chip:hover{transform:translateY(-3px);background:#fff}
.theme-chip .sw{position:relative;width:44px;height:44px;border-radius:50%;background:var(--c-page);border:1.5px solid rgba(21,28,34,.12);box-shadow:0 4px 10px -4px rgba(21,28,34,.25)}
.theme-chip .sw::after{content:"";position:absolute;right:-3px;bottom:-3px;width:20px;height:20px;border-radius:50%;background:var(--c-out);border:2px solid #fff}
.theme-chip.is-on{background:#fff;border-color:var(--c-acc);color:var(--ink);transform:translateY(-3px)}
.seg{display:inline-flex;padding:4px;border-radius:999px;background:rgba(255,255,255,.75);border:1px solid var(--line);gap:2px}
.seg-btn{padding:10px 20px;border-radius:999px;font-weight:700;font-size:14.5px;color:var(--ink-2);transition:background .25s,color .25s,transform .3s var(--spring)}
.seg-btn:hover{color:var(--ink)}
.seg-btn.is-on{background:var(--ink);color:#fff}
.papers-copy .fine{margin-top:22px}
.papers-stage{display:grid;place-items:center}
.papers-stage .phone{--w:330px}
.chat-body.static{justify-content:flex-end}

/* 4 · Little things */
.pocket{padding:clamp(80px,11vw,140px) 0 clamp(90px,12vw,150px);background:#fff;position:relative}
.pocket .chapter-head h2{margin-bottom:16px}
.scraps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:26px 22px;margin-top:64px}
.scrap{--r:0deg;position:relative;padding:34px 22px 26px;border-radius:8px 12px 6px 14px;transform:rotate(var(--r));box-shadow:0 2px 0 rgba(21,28,34,.04),0 22px 34px -20px rgba(21,28,34,.35);transition:transform .5s var(--spring),box-shadow .3s}
.scrap:hover{transform:rotate(0) translateY(-8px);box-shadow:0 2px 0 rgba(21,28,34,.04),0 30px 40px -20px rgba(21,28,34,.4)}
.scrap .tape{position:absolute;top:-12px;left:50%;width:78px;height:25px;margin-left:-39px;transform:rotate(-3deg);background:rgba(255,255,255,.72);border:1px solid rgba(21,28,34,.06);box-shadow:0 2px 4px rgba(21,28,34,.08);-webkit-mask:linear-gradient(90deg,transparent 0 2px,#000 2px calc(100% - 2px),transparent 0);mask:linear-gradient(90deg,transparent 0 2px,#000 2px calc(100% - 2px),transparent 0)}
.scrap:nth-child(even) .tape{transform:rotate(4deg)}
.scrap b{display:block;font-size:40px;line-height:1;margin-bottom:16px}
.scrap h3{font-size:19px;margin-bottom:6px}
.scrap p{font-size:15px;color:var(--ink-2);line-height:1.5}
.c-blue{background:#e8f4fc}.c-blush{background:#fce1e4}.c-butter{background:#fff8d9}.c-mint{background:#e2f9fc}

/* 5 · Privacy */
.private{position:relative;background:#fff0f2;color:var(--plum);padding:clamp(90px,11vw,150px) 0 clamp(170px,18vw,230px)}
.private-grid{display:grid;grid-template-columns:minmax(0,.9fr) minmax(0,1.1fr);gap:72px;align-items:start;position:relative}
.private h2{margin-bottom:22px}
.private .lead{color:rgba(66,20,34,.82);margin-bottom:30px}
.promises li{display:flex;gap:20px;align-items:flex-start;padding:26px 0;border-top:1.5px solid rgba(66,20,34,.14)}
.promises li:last-child{border-bottom:1.5px solid rgba(66,20,34,.14)}
.pi{flex:none;width:58px;height:58px;border-radius:20px;display:grid;place-items:center;font-size:27px;background:#fff;box-shadow:0 10px 18px -10px rgba(66,20,34,.4)}
.promises h3{font-size:clamp(19px,2vw,23px);margin-bottom:4px}
.promises p{color:rgba(66,20,34,.8);font-size:16px}
.private-cat{position:absolute;right:max(24px,calc(50% - 600px));bottom:-24px;width:clamp(170px,20vw,250px);height:auto;filter:drop-shadow(3px 0 0 #fff) drop-shadow(-3px 0 0 #fff) drop-shadow(0 3px 0 #fff) drop-shadow(0 12px 12px rgba(66,20,34,.2));transform:rotate(-3deg)}

/* 6 · Finale */
.finale{position:relative;z-index:1;background-color:var(--blue);background-image:none;color:#fff;text-align:center;padding:clamp(130px,16vw,210px) 0 clamp(110px,12vw,150px)}
.finale::before{content:"";position:absolute;inset:0;background-image:var(--paper-img);background-size:var(--paper-size);opacity:.2;pointer-events:none}
.finale::after{content:"";position:absolute;inset:0;background:radial-gradient(60% 55% at 50% 0%,rgba(90,204,216,.35),transparent 70%);pointer-events:none}
.peek{position:absolute;z-index:2;left:50%;top:0;width:clamp(190px,22vw,290px);height:auto;transform:translate(-50%,-99%);filter:drop-shadow(0 -2px 0 #fff)}
.finale-inner{position:relative;z-index:1}
.finale h2{font-size:clamp(52px,9.4vw,136px);letter-spacing:-.055em;line-height:.93;margin-bottom:26px}
.finale .lead{color:rgba(255,255,255,.92);margin:0 auto 38px}
.finale .fine{margin-top:26px}

.foot{background:#fff;padding:34px 0 40px;color:var(--ink-3);font-size:14.5px;font-weight:500}
.foot-row{display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap}
.foot .brand{color:var(--ink);font-size:18px}.foot .brand img{width:26px;height:26px;border-radius:8px}
.foot a:not(.brand){font-weight:700;color:var(--ink-2);text-decoration:underline;text-underline-offset:4px}
.foot a:not(.brand):hover{color:var(--blue)}

/* ==========================================================================
   Motion
   ========================================================================== */
.js [data-reveal]{opacity:0;transform:translateY(30px);transition:opacity .7s var(--ease),transform .9s var(--spring);transition-delay:calc(var(--i,0) * 70ms)}
.js [data-reveal].in{opacity:1;transform:none}
.js .scrap[data-reveal]{transform:translateY(30px) rotate(var(--r))}
.js .scrap[data-reveal].in{transform:rotate(var(--r))}
.js .scrap[data-reveal].in:hover{transform:rotate(0) translateY(-8px)}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important;transition-delay:0s!important}
  .js [data-reveal]{opacity:1;transform:none}
  .js .scrap[data-reveal]{transform:rotate(var(--r))}
  .scribble path{stroke-dashoffset:0}
}

/* ==========================================================================
   Responsive
   ========================================================================== */
@media (max-width:1020px){
  .nav-links{display:none}
  .nav{justify-content:space-between;width:min(1040px,calc(100% - 28px))}
  .hero{padding-top:118px;min-height:0}
  .hero-grid{grid-template-columns:1fr;gap:36px}
  .hero-copy{text-align:center;display:flex;flex-direction:column;align-items:center}
  .hero-copy .lead{margin-inline:auto}
  .hero-cta{justify-content:center}
  .hero-stage{min-height:600px}
  .papers-grid{grid-template-columns:1fr;gap:48px}
  .papers-copy{text-align:center}
  .papers-copy .lead{margin-inline:auto}
  .theme-chips{margin-inline:auto}
  .private-grid{grid-template-columns:1fr;gap:44px}
  .scraps{grid-template-columns:repeat(2,minmax(0,1fr));gap:24px 20px}
  .doodle-stage{grid-template-columns:1fr;gap:12px;max-width:560px}
  .hop{width:70px;height:46px;margin:8px auto;transform:rotate(90deg) scale(.85)}
  .recv{width:100%}
  .recv-screen{align-items:center}
}
@media (max-width:640px){
  body{font-size:16px}
  .wrap,.container,.hero-grid{width:calc(100% - 32px);max-width:100%}

  /* Nav */
  .nav{top:max(8px,var(--sat));height:52px;padding:0 8px 0 14px;width:min(1040px,calc(100% - 20px));max-width:calc(100vw - 20px);gap:10px;justify-content:space-between}
  .brand{font-size:18px;gap:8px;flex-shrink:0}
  .brand img{width:26px;height:26px}
  .nav .btn{height:36px;padding:0 14px;font-size:13.5px;flex-shrink:0}

  /* Hero */
  .hero{padding:88px 0 44px;overflow-x:hidden}
  .hero-copy>*{margin-top:0}
  .hero-copy{gap:20px}
  .status-pill{display:inline-flex;align-items:center;justify-content:center;flex-wrap:wrap;gap:6px 8px;padding:6px 14px;font-size:12px;line-height:1.35;text-align:center;max-width:100%}
  .hero h1{font-size:clamp(32px,8.5vw,46px);line-height:1.06;letter-spacing:-.035em;overflow-wrap:break-word}
  .scribble path{stroke-width:6}
  .lead{font-size:16px;line-height:1.52;overflow-wrap:break-word}
  .hero-cta{flex-direction:column;width:100%;max-width:320px;margin-inline:auto;gap:10px}
  .hero-cta .btn{width:100%;height:52px;font-size:15px;justify-content:center}
  .hero-stage{min-height:auto;padding:24px 0 32px;width:100%;max-width:100%;overflow:hidden}
  .drag-tip{display:none}

  /* Phone Mockups */
  .phone,.papers-stage .phone{--w:min(290px,78vw);border-radius:44px;padding:8px}
  .phone-screen{border-radius:36px}
  .phone-screen::before{width:80px;height:22px;top:8px}
  .statusbar{height:38px;padding:2px 20px 0 22px;font-size:12px}
  .chat-head{padding:6px 10px 8px;gap:8px}
  .avatar{width:30px;height:30px;font-size:13px}
  .who b{font-size:14px}.who small{font-size:11px}
  .chat-body{padding:8px 8px 6px;gap:7px}
  .msg p{padding:8px 12px;font-size:13.5px;border-radius:18px}
  .msg.out p{padding-right:32px}
  .ticks{right:10px;bottom:9px}
  .composer{padding:6px 8px 14px;gap:6px}
  .c-btn{width:34px;height:34px}
  .c-btn .ic{width:17px;height:17px}
  .c-input{height:36px;padding:0 12px;font-size:13px}
  .jumbo{font-size:44px}
  .heart{width:106px;height:96px}
  .replay{font-size:13px;padding:7px 16px;bottom:-8px}

  /* Hero Floating Stickers */
  .float-sticker{touch-action:none}
  .s1{left:max(0px,calc(50% - 165px));top:2%;width:clamp(72px,19vw,92px)}
  .s2{right:max(0px,calc(50% - 165px));top:1%;width:clamp(76px,20vw,98px)}
  .s3{left:max(0px,calc(50% - 170px));bottom:8%;width:clamp(74px,19vw,94px)}
  .s4{right:max(0px,calc(50% - 170px));bottom:5%;width:clamp(70px,18vw,88px)}

  /* Chapters General */
  .chapter{padding:54px 0;overflow-x:hidden}
  .chapter-head .chip{margin-bottom:16px}
  .chapter-head h2{font-size:clamp(28px,7.8vw,42px);margin-bottom:16px;line-height:1.06}
  .chapter-head .lead{font-size:15.5px}

  /* 1 · Doodle */
  .doodle-stage{margin-top:32px;gap:10px}
  .pad{padding:12px;border-radius:22px}
  .pad-tools{padding:2px 2px 10px;gap:6px}
  .swatches{gap:8px}
  .swatch{width:32px;height:32px}
  .tool{width:38px;height:38px}
  .pad-surface{height:230px;border-radius:16px}
  .pad-hint{font-size:15px;gap:8px}
  .pad-hint svg{width:36px;height:24px}
  .pad-actions{flex-direction:column;gap:10px;padding-top:12px}
  .pad-actions .btn{width:100%;height:48px}
  .recv-cap{font-size:13px;margin-bottom:8px}
  .recv-screen{min-height:230px;padding:16px 14px;border-radius:22px}
  .doodle-msg canvas{width:min(100%,260px)}

  /* 2 · Stickers */
  .scene-wrap{margin-top:32px}
  .scene{height:auto;min-height:370px;border-radius:24px}
  .scene-inner{grid-template-columns:1fr;gap:10px;padding:16px 12px 48px}
  .scene-inner .msg.in,.scene-inner .msg.out{justify-self:center;max-width:92%}
  .polaroid{order:-1;margin:2px auto;width:min(205px,62vw);padding:10px 10px 12px}
  .photo{height:120px}
  .scene-hint{bottom:10px;font-size:12px;padding:6px 14px;white-space:normal;text-align:center;max-width:90%}
  .dock{width:100%;max-width:100%;margin:16px auto 0;padding:10px 12px;border-radius:24px;gap:8px;justify-content:center;flex-wrap:wrap}
  .dock-item{width:48px;height:48px;border-radius:14px;touch-action:manipulation}
  .dock-item img{width:36px;max-height:36px}
  .dock-item.emoji span{font-size:24px}
  .dock-sep{height:30px;margin:0 2px}

  /* 3 · Papers */
  .papers-grid{gap:32px}
  .ctl-label{margin:22px 0 10px}
  .theme-chips{grid-template-columns:repeat(2,minmax(0,1fr));gap:8px;width:100%;max-width:100%}
  .theme-chip{display:flex;align-items:center;gap:10px;padding:8px 12px;border-radius:16px;font-size:13px;font-weight:700;text-align:left;line-height:1.25;min-height:50px;background:rgba(255,255,255,.85);box-shadow:0 2px 6px rgba(21,28,34,.04)}
  .theme-chip .sw{width:32px;height:32px;flex:none}
  .theme-chip .sw::after{width:14px;height:14px}
  .theme-chip.is-on{background:#fff;box-shadow:0 4px 12px -2px rgba(13,116,180,.25)}
  .seg{width:100%;max-width:320px;margin-inline:auto;display:flex}
  .seg-btn{flex:1;text-align:center;padding:9px 12px;font-size:14px}
  .papers-copy .fine{margin-top:16px;font-size:13px}

  /* 4 · Scraps */
  .pocket{padding:54px 0 60px}
  .scraps{grid-template-columns:1fr;gap:20px;margin-top:32px}
  .scrap{--r:0deg!important;transform:none!important;border-radius:18px;padding:26px 18px 20px;max-width:100%}
  .scrap .tape{top:-10px}
  .scrap b{font-size:34px;margin-bottom:12px}
  .scrap h3{font-size:18px}
  .scrap p{font-size:14.5px}

  /* 5 · Privacy */
  .private{padding:54px 0 150px}
  .private-grid{gap:30px}
  .private-copy .btn{width:100%;max-width:320px;justify-content:center;margin-inline:auto}
  .promises li{padding:16px 0;gap:14px}
  .pi{width:46px;height:46px;font-size:22px;border-radius:16px}
  .promises h3{font-size:16.5px}
  .promises p{font-size:14px}
  .private-cat{left:50%;right:auto;transform:translateX(-50%) rotate(-2deg);width:min(170px,46vw);bottom:-14px}

  /* 6 · Finale & Footer */
  .finale{padding:90px 0 54px}
  .peek{width:min(180px,48vw);transform:translate(-50%,-88%)}
  .finale h2{font-size:clamp(36px,9.6vw,52px);margin-bottom:16px}
  .finale .lead{font-size:16px;margin-bottom:26px}
  .finale .hero-cta{flex-direction:column;width:100%;max-width:320px;margin-inline:auto;gap:10px}
  .finale .hero-cta .btn{width:100%;height:52px;justify-content:center}
  .foot{padding:26px 0}
  .foot-row{flex-direction:column;align-items:center;text-align:center;gap:12px}
}

/* Extra small devices (<=380px) */
@media (max-width:380px){
  .wrap,.container,.hero-grid{width:calc(100% - 24px)}
  .nav{height:48px;padding:0 6px 0 12px;gap:8px}
  .brand{font-size:16.5px}
  .brand img{width:24px;height:24px}
  .nav .btn{height:34px;padding:0 12px;font-size:13px}
  .hero h1{font-size:32px}
  .s3,.s4{display:none}
  .dock{gap:5px;padding:8px 8px}
  .dock-item{width:42px;height:42px;border-radius:12px}
  .dock-item img{width:30px;max-height:30px}
  .dock-item.emoji span{font-size:20px}
  .theme-chips{gap:6px}
  .theme-chip{padding:6px 8px;font-size:11.5px;gap:7px;min-height:44px}
  .theme-chip .sw{width:26px;height:26px}
  .theme-chip .sw::after{width:12px;height:12px}
}

/* ---------- paper themes (generated) ---------- */
/* GENERATED from mobile/lib/core/theme/chat_theme.dart by tools/gen_themes.py — the ten chat papers. */
[data-theme="classic_dots"]{--page:#ffffff;--pat:#e2e8f0;--accent:#3b82f6;--out-bg:#d6e6fa;--out-bd:#b0cdf2;--in-bg:#fff;--in-bd:#cad5e2;--out-ink:#0f1a29;--in-ink:#141f2e;--tick:#0950c3;--link:#114497;--paper-img:radial-gradient(circle at center, var(--pat) 1.25px, transparent 1.75px);--paper-size:22px 22px;--theme-name:"Classic Dots"}
[data-theme="doodle"]{--page:#faf8fe;--pat:#e8def8;--accent:#7c3aed;--out-bg:#e6d7f9;--out-bd:#cdb2f0;--in-bg:#fff;--in-bd:#d5cae2;--out-ink:#1a0f29;--in-ink:#1f142e;--tick:#5011bb;--link:#4d13ae;--paper-img:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='96' height='96' fill='none' stroke='%23e8def8' stroke-width='1.2' stroke-linecap='round'%3E%3Cpath d='M16 8 Q16 16 24 16 Q16 16 16 24 Q16 16 8 16 Q16 16 16 8Z'/%3E%3Ccircle cx='68' cy='20' r='3'/%3E%3Cpath d='M44 52h8M48 48v8'/%3E%3Cpath d='M76 70l5 8h-10z'/%3E%3Ccircle cx='20' cy='72' r='1.4' fill='%23e8def8'/%3E%3C/svg%3E");--paper-size:96px 96px;--theme-name:"Doodle Stars"}
[data-theme="graph"]{--page:#f7fbf8;--pat:#d6efe0;--accent:#10b981;--out-bg:#cff2e0;--out-bd:#ade5c9;--in-bg:#fff;--in-bd:#cde0d6;--out-ink:#0f291c;--in-ink:#142e21;--tick:#0a7552;--link:#0a573e;--paper-img:linear-gradient(var(--pat) 1px, transparent 1px), linear-gradient(90deg, var(--pat) 1px, transparent 1px);--paper-size:22px 22px;--theme-name:"Graph Paper"}
[data-theme="ruled_notebook"]{--page:#fdfcf7;--pat:#f5eac0;--accent:#d97706;--out-bg:#faebc2;--out-bd:#f2db9c;--in-bg:#fff;--in-bd:#e2dcca;--out-ink:#29220f;--in-ink:#2e2714;--tick:#9f5704;--link:#6e410c;--paper-img:linear-gradient(90deg, transparent 41px, rgba(232,122,138,.32) 41px, rgba(232,122,138,.32) 42px, transparent 42px), linear-gradient(var(--pat) 1px, transparent 1px);--paper-size:100% 100%, 100% 28px;--theme-name:"Ruled Notebook"}
[data-theme="blueprint"]{--page:#f7fafd;--pat:#d4e6f8;--accent:#0284c7;--out-bg:#cdeff9;--out-bd:#a8dff0;--in-bg:#fff;--in-bd:#cadde2;--out-ink:#0f2329;--in-ink:#14282e;--tick:#026ba2;--link:#0d5073;--paper-img:linear-gradient(var(--pat) 1px, transparent 1px), linear-gradient(90deg, var(--pat) 1px, transparent 1px);--paper-size:32px 32px;--theme-name:"Blueprint Grid"}
[data-theme="stardust"]{--page:#f6fafd;--pat:#d6eaf8;--accent:#0d74b4;--out-bg:#d8e9f9;--out-bd:#b3d3ef;--in-bg:#fff;--in-bd:#cad7e2;--out-ink:#0f1d29;--in-ink:#14222e;--tick:#0c6ba6;--link:#0d4f77;--paper-img:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='84' height='84' fill='none' stroke='%23d6eaf8' stroke-width='1.1'%3E%3Cpath d='M16 8 Q16 16 24 16 Q16 16 16 24 Q16 16 8 16 Q16 16 16 8Z'/%3E%3Ccircle cx='58' cy='24' r='1.6' fill='%23d6eaf8'/%3E%3Ccircle cx='36' cy='62' r='1' fill='%23d6eaf8'/%3E%3Cpath d='M66 60 Q66 66 72 66 Q66 66 66 72 Q66 66 60 66 Q66 66 66 60Z'/%3E%3C/svg%3E");--paper-size:84px 84px;--theme-name:"Stardust"}
[data-theme="halftone"]{--page:#fdf8f9;--pat:#f9dce3;--accent:#db2777;--out-bg:#f9d7e2;--out-bd:#f0b2c7;--in-bg:#fff;--in-bd:#e2cad2;--out-ink:#290f18;--in-ink:#2e141d;--tick:#af1d5e;--link:#831646;--paper-img:radial-gradient(circle at 9px 9px, var(--pat) 1.7px, transparent 2.1px), radial-gradient(circle at 27px 27px, var(--pat) 1.7px, transparent 2.1px);--paper-size:36px 36px;--theme-name:"Halftone Pop"}
[data-theme="scrapbook"]{--page:#fdf9f7;--pat:#f9ddd1;--accent:#e4572e;--out-bg:#fcd8cf;--out-bd:#f5b8a8;--in-bg:#fff;--in-bd:#e2cfca;--out-ink:#29140f;--in-ink:#2e1914;--tick:#b03917;--link:#7e2910;--paper-img:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='68' height='68' stroke='%23f9ddd1' stroke-width='1' stroke-linecap='round'%3E%3Cpath d='M12 14l6-3'/%3E%3Ccircle cx='46' cy='16' r='1.2' fill='%23f9ddd1'/%3E%3Ccircle cx='20' cy='48' r='1.5' fill='%23f9ddd1'/%3E%3Cpath d='M52 52l5 2'/%3E%3C/svg%3E");--paper-size:68px 68px;--theme-name:"Space"}
[data-theme="isometric"]{--page:#f8faf8;--pat:#dbe8db;--accent:#4f7a2b;--out-bg:#d8e6d1;--out-bd:#c0d4b5;--in-bg:#fff;--in-bd:#d5dbd1;--out-ink:#19290f;--in-ink:#1e2e14;--tick:#476d27;--link:#334f1c;--paper-img:repeating-linear-gradient(0deg, var(--pat) 0 1px, transparent 1px 24px), repeating-linear-gradient(60deg, var(--pat) 0 1px, transparent 1px 28px), repeating-linear-gradient(120deg, var(--pat) 0 1px, transparent 1px 28px);--paper-size:auto;--theme-name:"Isometric"}
[data-theme="crosshatch"]{--page:#fbfbfb;--pat:#e2e2e2;--accent:#4b5563;--out-bg:#e5e8eb;--out-bd:#cbd0d7;--in-bg:#fff;--in-bd:#d4d6d8;--out-ink:#0f1a29;--in-ink:#141f2e;--tick:#586474;--link:#424b57;--paper-img:repeating-linear-gradient(45deg, var(--pat) 0 1px, transparent 1px 18px), repeating-linear-gradient(-45deg, var(--pat) 0 1px, transparent 1px 18px);--paper-size:auto;--theme-name:"Crosshatch"}

/* ---------- interactive drag & selection safety ---------- */
.dock,.dock-item,.float-sticker,.placed,.ghost{-webkit-user-select:none;user-select:none;-webkit-touch-callout:none}
.dock img,.float-sticker img,.placed img,.ghost img{-webkit-user-drag:none;user-drag:none}
.private-copy{position:relative;z-index:2}
.private-cat,.peek{pointer-events:none}
.has-sticker p{padding-right:44px}

/* ==========================================================================
   Privacy page — same paper, same toys, calmer
   ========================================================================== */
.privacy-body{background:#fff}
.privacy-body .nav-links a[aria-current]{background:rgba(21,28,34,.07);color:var(--ink)}
.privacy-hero{padding:150px 0 70px;text-align:center;background:var(--page) var(--paper-img);background-size:var(--paper-size)}
.privacy-hero h1{font-size:clamp(44px,7vw,92px);margin:18px 0 22px}
.privacy-hero h1 em{font-style:normal;color:var(--blue)}
.lede{font-size:clamp(18px,1.7vw,21px);color:var(--ink-2);max-width:40em;margin:0 auto}
.eyebrow{display:inline-flex;align-items:center;gap:9px;padding:7px 14px;border-radius:999px;background:var(--mint);color:#0b5560;font-weight:700;font-size:13.5px}
.eyebrow span{width:8px;height:8px;border-radius:50%;background:#27b7c6}
.hero-traits{display:flex;flex-wrap:wrap;justify-content:center;gap:10px;margin-top:34px}
.hero-traits span{padding:10px 16px;border-radius:999px;background:#fff;border:1px solid var(--line);font-weight:600;font-size:14.5px;box-shadow:0 8px 18px -12px rgba(21,28,34,.4)}
.privacy-pillars{padding:90px 0}
.section-intro{text-align:center;max-width:760px;margin:0 auto 54px}
.section-intro h2{font-size:clamp(32px,4.4vw,56px);margin-top:16px}
.pillars-grid{display:grid;gap:26px;max-width:900px;margin:0 auto}
.pillar-card{display:flex;gap:24px;padding:30px;border-radius:var(--r-card);background:#fff;border:1px solid var(--line);box-shadow:0 28px 56px -32px rgba(8,79,125,.35)}
.pillar-card:nth-child(1){background:#e8f4fc}.pillar-card:nth-child(2){background:#fff0f2}.pillar-card:nth-child(3){background:#fff8d9}
.pillar-icon{flex:none;width:60px;height:60px;border-radius:20px;display:grid;place-items:center;font-size:28px;background:#fff;box-shadow:0 10px 18px -10px rgba(21,28,34,.4)}
.pillar-tag{display:inline-block;font-weight:700;font-size:13px;color:var(--ink-2);margin-bottom:8px}
.pillar-content h3{font-size:clamp(22px,2.6vw,30px);margin-bottom:10px}
.pillar-lead{color:var(--ink-2);margin-bottom:16px}
.analogy-box{padding:16px 18px;border-radius:18px;background:rgba(255,255,255,.75);border:1.5px dashed rgba(21,28,34,.18);margin-bottom:14px}
.analogy-label{display:block;font-weight:800;font-size:13.5px;margin-bottom:4px}
.tech-deepdive{border-radius:16px;background:rgba(255,255,255,.6);border:1px solid var(--line)}
.tech-deepdive summary{display:flex;justify-content:space-between;gap:12px;padding:14px 18px;font-weight:700;font-size:14.5px;cursor:pointer;list-style:none}
.tech-deepdive summary::-webkit-details-marker{display:none}
.chevron{transition:transform .3s var(--spring)}
.tech-deepdive[open] .chevron{transform:rotate(180deg)}
.tech-content{padding:0 18px 16px;font-size:14.5px;color:var(--ink-2)}
.tech-content code{display:block;margin:10px 0;padding:12px 14px;border-radius:12px;background:#151c22;color:#d7f3f7;font:500 13px/1.5 ui-monospace,Menlo,Consolas,monospace;overflow-x:auto}
.tech-sub{margin-top:8px}
.privacy-faq{padding:30px 0 90px}
.faq-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;max-width:1000px;margin:0 auto}
.faq-item{padding:24px;border-radius:22px;background:#fff;border:1px solid var(--line);box-shadow:0 20px 36px -26px rgba(21,28,34,.4)}
.faq-item h4{font-size:17px;font-weight:800;letter-spacing:-.01em;margin:0 0 8px}
.faq-item p{font-size:15px;color:var(--ink-2)}
.whitepaper-callout{padding:0 0 100px}
.whitepaper-panel{display:flex;gap:36px;align-items:center;justify-content:space-between;padding:clamp(30px,5vw,56px);border-radius:36px;background:var(--blue);color:#fff}
.whitepaper-panel .eyebrow{background:rgba(255,255,255,.18);color:#fff}.whitepaper-panel .eyebrow span{background:#fff}
.whitepaper-panel h2{font-size:clamp(28px,3.6vw,46px);margin:14px 0}
.whitepaper-panel p{color:rgba(255,255,255,.9)}
.whitepaper-actions{flex:none;text-align:center}.whitepaper-actions p{margin-top:12px;font-size:13px}

@media (max-width:760px){
  .privacy-hero{padding-top:108px}
  .pillar-card{flex-direction:column;padding:22px;gap:18px}
  .pillar-icon{width:50px;height:50px;font-size:24px;border-radius:16px}
  .faq-grid{grid-template-columns:1fr}
  .whitepaper-panel{flex-direction:column;align-items:stretch;padding:32px 24px;gap:24px;text-align:center}
  .whitepaper-panel .eyebrow{margin-inline:auto}
  .whitepaper-actions{width:100%}
  .whitepaper-actions .btn{width:100%;justify-content:center}
}
@media (max-width:640px){
  .privacy-hero{padding:96px 0 44px}
  .privacy-hero h1{font-size:clamp(32px,8.5vw,46px);margin:12px 0 16px}
  .lede{font-size:16px}
  .hero-traits{gap:8px;margin-top:22px}
  .hero-traits span{font-size:13.5px;padding:8px 14px;width:100%;max-width:340px;text-align:center}
  .privacy-pillars{padding:54px 0}
  .section-intro{margin-bottom:34px}
  .section-intro h2{font-size:clamp(26px,6.8vw,36px)}
  .pillar-card{padding:18px 16px;border-radius:20px}
  .pillar-content h3{font-size:19px}
  .tech-deepdive summary{padding:12px 14px;font-size:13.5px}
  .tech-content{padding:0 14px 14px;font-size:13.5px}
  .tech-content code{font-size:12px;padding:10px 12px}
  .faq-item{padding:18px;border-radius:18px}
  .whitepaper-callout{padding:0 0 60px}
  .whitepaper-panel{padding:26px 18px;border-radius:24px}
  .whitepaper-panel h2{font-size:clamp(24px,6.2vw,32px)}
}