/* LearnExcel.co.uk — "Ellie" design system. Shared by index.html and start.html */

/* ---------- Tokens ---------- */
:root{
  --cream:#FFF8EC; --paper:#FFFFFF; --ink:#2B2340; --ink-soft:#4A4160; --muted:#6B6380;
  --green:#21A366; --green-dk:#107C41; --mint:#C8EFD9; --mint-lt:#EAF8F0;
  --pink:#FF7EA0; --blush:#FFE3EA; --sun:#FFD23F; --sun-lt:#FFF3C4;
  --sky:#6EC1FF; --sky-lt:#E1F2FF; --lilac:#9B8CFF; --lilac-lt:#EEEAFF;
  --rose:#D93A63; --line:#E6DDCC;
  --f-head:"Fredoka","Nunito",system-ui,sans-serif;
  --f-body:"Nunito",system-ui,-apple-system,"Segoe UI",sans-serif;
  --f-mono:"JetBrains Mono",ui-monospace,Menlo,Consolas,monospace;
  --r:20px; --pop:0 4px 0 var(--ink); --pop-lg:0 7px 0 var(--ink);
  --ease:cubic-bezier(.2,.8,.2,1.15);
}

/* ---------- Base ---------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-padding-top:90px}
@media (prefers-reduced-motion:no-preference){html{scroll-behavior:smooth}}
body{margin:0;background:var(--cream);color:var(--ink);font:500 16px/1.65 var(--f-body);-webkit-font-smoothing:antialiased;
  background-image:radial-gradient(rgba(43,35,64,.07) 1.2px,transparent 1.3px);background-size:22px 22px}
@media (min-width:1024px){body{font-size:17px}}
h1,h2,h3{font-family:var(--f-head);font-weight:600;line-height:1.1;letter-spacing:-.01em;margin:0 0 .5em;text-wrap:balance}
h1{font-size:clamp(2.3rem,1.3rem + 3.8vw,4.1rem);font-weight:700}
h2{font-size:clamp(1.8rem,1.25rem + 2vw,2.75rem)}
h3{font-size:1.28rem}
p{margin:0 0 1em}
a{color:var(--green-dk);font-weight:700;text-underline-offset:3px}
a:hover{color:var(--ink)}
:focus-visible{outline:3px solid var(--lilac);outline-offset:3px;border-radius:6px}
code,kbd{font-family:var(--f-mono);font-size:.9em}
code{background:var(--lilac-lt);padding:1px 6px;border-radius:6px}
img{max-width:100%;height:auto}
.wrap{width:100%;max-width:1220px;margin:0 auto;padding:0 20px}
@media (min-width:768px){.wrap{padding:0 32px}}
.narrow{max-width:860px}
.sr-only{position:absolute!important;width:1px;height:1px;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.skip{position:absolute;left:12px;top:-60px;z-index:100;background:var(--ink);color:#fff;padding:10px 16px;border-radius:10px}
.skip:focus{top:12px;color:#fff}
.muted{color:var(--muted)} .small{font-size:.9rem}
.center{text-align:center}
.kicker{display:inline-flex;align-items:center;gap:8px;font:700 .82rem/1 var(--f-mono);text-transform:uppercase;letter-spacing:.08em;
  background:var(--paper);border:2px solid var(--ink);border-radius:999px;padding:7px 12px;margin:0 0 16px;box-shadow:0 2px 0 var(--ink)}
.kicker i{width:8px;height:8px;border-radius:50%;background:var(--green)}
.lede{font-size:1.12rem;max-width:44em;color:var(--ink-soft)}
.section{padding:84px 0}
@media (max-width:700px){.section{padding:56px 0}}
.section-head{max-width:52em;margin-bottom:34px}
.section-head.center{margin-left:auto;margin-right:auto}
.hl{background:linear-gradient(transparent 58%,var(--sun) 58%,var(--sun) 92%,transparent 92%);padding:0 .08em}
.hl-pink{background:linear-gradient(transparent 58%,var(--pink) 58%,var(--pink) 92%,transparent 92%)}

/* ---------- Buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:.5em;min-height:50px;padding:.7em 1.3em;border-radius:16px;
  font:700 1.02rem/1.2 var(--f-body);text-decoration:none;border:2.5px solid var(--ink);cursor:pointer;box-shadow:var(--pop);
  transition:transform .15s var(--ease),box-shadow .15s,background-color .15s;text-align:center;color:var(--ink);background:var(--paper)}
.btn:hover{transform:translateY(-2px);box-shadow:0 6px 0 var(--ink);color:var(--ink)}
.btn:active{transform:translateY(3px);box-shadow:0 1px 0 var(--ink)}
.btn-green{background:var(--green-dk);color:#fff}.btn-green:hover{color:#fff;background:#0C6A37}
.btn-sun{background:var(--sun)}
.btn-pink{background:var(--pink)}
.btn-lg{min-height:58px;font-size:1.1rem;padding:.8em 1.5em}
.btn-sm{min-height:40px;padding:.4em .9em;font-size:.92rem;border-radius:12px;box-shadow:0 3px 0 var(--ink)}
.btn-row{display:flex;flex-wrap:wrap;gap:14px;align-items:center}

/* ---------- Announcement ---------- */
.announce{background:var(--ink);color:#fff;font-size:.93rem}
.announce .wrap{display:flex;align-items:center;justify-content:space-between;gap:12px;min-height:42px}
.announce p{margin:0;padding:8px 0;display:flex;align-items:center;gap:10px}
.announce a{color:var(--sun)}
.pulse{width:9px;height:9px;border-radius:50%;background:var(--sun);flex:none}
@media (prefers-reduced-motion:no-preference){.pulse{animation:pulse 1.8s infinite}}
@keyframes pulse{50%{opacity:.3}}
.announce-x{background:none;border:0;color:#fff;width:40px;height:40px;border-radius:10px;cursor:pointer;font-size:1.1rem}
.announce-x:hover{background:rgba(255,255,255,.12)}
.announce-off .announce{display:none}

/* ---------- Header ---------- */
.site-header{background:rgba(255,248,236,.95);border-bottom:2.5px solid var(--ink);z-index:50;position:sticky;top:0;backdrop-filter:blur(8px)}
.nav{display:flex;align-items:center;gap:18px;min-height:70px}
.logo{display:inline-flex;align-items:center;gap:10px;text-decoration:none;color:var(--ink);flex:none}
.logo img{width:40px;height:46px}
.wm{font:700 1.3rem/1 var(--f-head);color:var(--ink)}
.wm b{color:var(--green-dk);font-weight:700}
.nav-links{display:flex;gap:4px;list-style:none;margin:0;padding:0}
.nav-links a{display:block;padding:8px 13px;border-radius:12px;color:var(--ink);text-decoration:none;font-weight:700;white-space:nowrap}
.nav-links a:hover{background:var(--sun-lt)}
.nav-right{display:flex;align-items:center;gap:12px;margin-left:auto}
.xp-chip{display:inline-flex;align-items:center;gap:6px;height:38px;padding:0 14px;border-radius:999px;background:var(--sun);border:2.5px solid var(--ink);font:700 .9rem/1 var(--f-mono);white-space:nowrap;box-shadow:0 2px 0 var(--ink)}
@media (prefers-reduced-motion:no-preference){.xp-chip.bump{animation:bump .4s var(--ease)}}
@keyframes bump{40%{transform:translateY(-5px) scale(1.12)}}
@media (max-width:960px){.nav{flex-wrap:wrap;gap:6px 12px;padding:10px 0}.nav-links{order:3;width:100%;overflow-x:auto}}
@media (max-width:560px){.nav-right .btn{min-height:42px;padding:.45em .9em;font-size:.92rem}.xp-chip{display:none}}

/* ---------- Hero ---------- */
.hero{padding:56px 0 70px;position:relative;overflow:hidden}
.hero-in{display:grid;gap:40px;align-items:center}
@media (min-width:1000px){.hero-in{grid-template-columns:1.1fr .9fr;gap:56px}}
.eyebrow{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:18px}
.tag{display:inline-flex;align-items:center;gap:6px;padding:5px 12px;border-radius:999px;border:2px solid var(--ink);font:700 .85rem/1.2 var(--f-body);background:var(--paper)}
.tag-green{background:var(--mint)} .tag-pink{background:var(--blush)} .tag-sun{background:var(--sun-lt)}
.hero-sub{font-size:1.15rem;max-width:36em;color:var(--ink-soft);margin-bottom:26px}
.trust{display:flex;flex-wrap:wrap;gap:10px 22px;list-style:none;margin:24px 0 0;padding:0;font-weight:700;font-size:.95rem}
.trust li{display:flex;align-items:center;gap:8px}
.trust li::before{content:"✓";display:grid;place-items:center;width:22px;height:22px;border-radius:50%;background:var(--green);color:#fff;font-size:.8rem;border:2px solid var(--ink)}
.stage{position:relative;min-height:440px;display:grid;place-items:center}
.stage-blob{position:absolute;inset:6% 4%;background:var(--mint);border:3px solid var(--ink);border-radius:42% 58% 55% 45%/48% 42% 58% 52%;box-shadow:var(--pop-lg)}
.stage img.ellie-hero{position:relative;width:min(340px,80%);z-index:2}
.sticker{position:absolute;z-index:3;background:var(--paper);border:2.5px solid var(--ink);border-radius:14px;padding:8px 12px;font:700 .9rem/1.2 var(--f-body);box-shadow:var(--pop);white-space:nowrap}
.sticker code{background:none;padding:0}
.s1{top:6%;left:0;transform:rotate(-6deg);background:var(--sun-lt)}
.s2{top:14%;right:-2%;transform:rotate(5deg);background:var(--sun)}
.s3{bottom:16%;left:-3%;transform:rotate(4deg);background:var(--blush)}
.s4{bottom:5%;right:2%;transform:rotate(-4deg);background:var(--sky-lt)}
@media (prefers-reduced-motion:no-preference){
  .sticker{animation:float 5s ease-in-out infinite}
  .s2{animation-delay:-1.2s}.s3{animation-delay:-2.4s}.s4{animation-delay:-3.6s}
}
@keyframes float{50%{translate:0 -8px}}
.hero-bubble{position:absolute;z-index:3;top:-2%;left:50%;transform:translateX(-50%);background:var(--paper);border:2.5px solid var(--ink);border-radius:18px;padding:10px 14px;font-weight:700;max-width:260px;text-align:center;box-shadow:var(--pop)}
.hero-bubble::after{content:"";position:absolute;bottom:-12px;left:50%;width:18px;height:18px;background:var(--paper);border-right:2.5px solid var(--ink);border-bottom:2.5px solid var(--ink);transform:translateX(-50%) rotate(45deg)}
@media (max-width:600px){.stage{min-height:380px}.s1,.s3{left:2%}.s2,.s4{right:2%}.hero-bubble{max-width:220px;font-size:.9rem}}

/* ---------- "In short" (AI-friendly summary) ---------- */
.tldr{background:var(--paper);border:3px solid var(--ink);border-radius:var(--r);box-shadow:var(--pop-lg);padding:26px;display:grid;gap:22px}
@media (min-width:900px){.tldr{grid-template-columns:1.3fr 1fr;padding:32px}}
.tldr h2{font-size:1.5rem}
.facts{display:grid;grid-template-columns:auto 1fr;gap:8px 16px;margin:0;align-self:center}
.facts dt{font:700 .8rem/1.6 var(--f-mono);text-transform:uppercase;letter-spacing:.06em;color:var(--muted)}
.facts dd{margin:0;font-weight:700}

/* ---------- Interactive lab ---------- */
.lab{position:relative;background:var(--paper);border:3px solid var(--ink);border-radius:26px;box-shadow:var(--pop-lg);padding:24px;overflow:hidden}
@media (max-width:600px){.lab{padding:14px;border-radius:20px}}
.lab-head{display:flex;flex-wrap:wrap;justify-content:space-between;gap:14px 24px;align-items:flex-start;margin-bottom:18px}
.lab-step{font:700 .85rem/1.4 var(--f-mono);color:var(--muted);margin:0 0 6px;text-transform:uppercase;letter-spacing:.05em}
.pill-ref{display:inline-block;padding:2px 9px;border-radius:8px;background:var(--green-dk);color:#fff;letter-spacing:0}
.lab-task{font:600 1.25rem/1.35 var(--f-head);margin:0;max-width:36em;min-height:2.7em}
.lab-meta{display:flex;align-items:center;gap:14px}
.segs{display:flex;gap:6px;list-style:none;margin:0;padding:0}
.segs li{width:38px;height:12px;border-radius:999px;background:var(--line);border:2px solid var(--ink);transition:background-color .3s}
.segs li.now{background:var(--sun)}
.segs li.done{background:var(--green)}
.xp-pill{padding:5px 12px;border-radius:999px;background:var(--sun);border:2px solid var(--ink);font:700 .9rem/1 var(--f-mono)}
.lab-body{display:grid;gap:22px}
@media (min-width:980px){.lab-body{grid-template-columns:minmax(0,1.65fr) minmax(280px,1fr);align-items:start}}

/* Spreadsheet */
.xl{border:2.5px solid var(--ink);border-radius:16px;overflow:hidden;background:#fff}
.xl-title{display:flex;align-items:center;gap:10px;padding:8px 12px;background:var(--green-dk);color:#fff;font:700 .85rem/1.2 var(--f-body)}
.xl-title .dots{display:flex;gap:5px}.xl-title .dots i{width:10px;height:10px;border-radius:50%;background:rgba(255,255,255,.45)}
.xl-badge{margin-left:auto;font:600 .72rem/1 var(--f-mono);background:rgba(255,255,255,.18);padding:4px 8px;border-radius:999px;white-space:nowrap}
.xl-ribbon{display:flex;gap:4px;padding:6px 10px;background:#F3F7F4;border-bottom:1px solid #D9E3DC;font-size:.8rem;font-weight:700;color:var(--muted);overflow-x:auto}
.xl-ribbon span{padding:3px 10px;border-radius:8px;white-space:nowrap}
.xl-ribbon .on{background:#fff;color:var(--green-dk);box-shadow:inset 0 -2px 0 var(--green-dk)}
.xl-fbar{display:flex;align-items:center;gap:8px;padding:8px 10px;border-bottom:1px solid #D9E3DC}
.namebox{width:64px;height:38px;border:2px solid var(--ink);border-radius:10px;text-align:center;font:700 .95rem/1 var(--f-mono);background:var(--sun-lt);color:var(--ink)}
.fx{font:italic 700 .95rem/1 Georgia,serif;color:var(--muted);padding:0 2px}
.fx-input{flex:1;min-width:0;height:38px;border:2px solid var(--ink);border-radius:10px;padding:0 12px;font:500 1rem/1 var(--f-mono);color:var(--ink);background:#fff}
.fx-input:focus{outline:3px solid var(--green);outline-offset:1px}
.fx-go{width:40px;height:38px;border-radius:10px;border:2px solid var(--ink);background:var(--green);color:#fff;font-weight:800;cursor:pointer;box-shadow:0 2px 0 var(--ink)}
.fx-go:active{transform:translateY(2px);box-shadow:none}
.xl-gridwrap{overflow-x:auto}
.grid{border-collapse:collapse;width:100%;min-width:640px;table-layout:fixed;font:500 .9rem/1.2 var(--f-mono);user-select:none}
.grid th{background:#F4F2EC;color:var(--muted);font:600 .75rem/1 var(--f-mono);border:1px solid #DCD6C8;height:26px;transition:background-color .15s,color .15s}
.grid th.corner{width:38px}
.grid th.rowh{width:38px}
.grid th.hl{background:var(--mint);color:var(--green-dk)}
.grid td{position:relative;border:1px solid #DCD6C8;height:38px;padding:0 8px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;cursor:cell;outline:none}
.grid td.head{font-weight:700;font-family:var(--f-body);background:var(--sun-lt)}
.grid td.num{text-align:right;font-variant-numeric:tabular-nums}
.grid td.lock{color:var(--ink)}
.grid td.err{color:var(--rose);font-weight:700}
.grid td.sel{box-shadow:inset 0 0 0 2.5px var(--green-dk);background:#F3FBF6;z-index:1}
.grid td.sel::after{content:"";position:absolute;right:-1px;bottom:-1px;width:7px;height:7px;background:var(--green-dk);border:1px solid #fff}
.grid td.ok{animation:okflash .8s ease-out}
.grid td.bad{background:var(--blush)}
.grid td.bad.sel{background:var(--blush)}
@keyframes okflash{from{background:var(--green);color:#fff}}
.grid td.ai .val::before{content:"AI";display:inline-block;margin-right:6px;padding:0 5px;border-radius:5px;background:var(--lilac);color:#fff;font:700 .65rem/1.5 var(--f-body);vertical-align:1px}
.grid td.hint{box-shadow:inset 0 0 0 2.5px var(--pink)}
@media (prefers-reduced-motion:no-preference){.grid td.hint{animation:hintpulse 1.1s ease-in-out infinite}}
@keyframes hintpulse{50%{box-shadow:inset 0 0 0 4px var(--pink);background:var(--blush)}}
.cell-edit{position:absolute;inset:0;width:100%;border:0;padding:0 8px;font:inherit;color:var(--ink);background:#fff;outline:2.5px solid var(--green);outline-offset:-2.5px;z-index:3}
.xl-tabs{display:flex;gap:4px;padding:6px 10px;background:#F4F2EC;border-top:1px solid #DCD6C8;font:700 .78rem/1 var(--f-body);color:var(--muted)}
.xl-tabs span{padding:5px 12px;border-radius:0 0 8px 8px}
.xl-tabs .on{background:#fff;color:var(--green-dk);border-bottom:2.5px solid var(--green-dk)}
.lab-keys{font-size:.85rem;color:var(--muted);margin:10px 2px 0}
kbd{display:inline-block;padding:1px 6px;border:1.5px solid var(--ink);border-bottom-width:3px;border-radius:6px;background:#fff;color:var(--ink);font-size:.78em;line-height:1.4}

/* Ellie coach */
.coach{display:flex;flex-direction:column;align-items:center;gap:6px}
.bubble{position:relative;width:100%;min-height:150px;background:#fff;border:2.5px solid var(--ink);border-radius:20px;padding:16px 18px;box-shadow:var(--pop);font-size:1rem;line-height:1.55;transition:background-color .25s}
.bubble::after{content:"";position:absolute;bottom:-13px;left:50%;width:20px;height:20px;background:inherit;border-right:2.5px solid var(--ink);border-bottom:2.5px solid var(--ink);transform:translateX(-50%) rotate(45deg)}
.bubble p{margin:0 0 .5em}.bubble p:last-child{margin:0}
.bubble .who{display:block;font:700 .72rem/1 var(--f-mono);text-transform:uppercase;letter-spacing:.1em;color:var(--muted);margin-bottom:8px}
.bubble.ok{background:var(--mint-lt)}
.bubble.bad{background:var(--blush)}
.bubble.hint{background:var(--sun-lt)}
.bubble code{background:rgba(43,35,64,.08)}
.ellie-wrap{width:190px;margin-top:12px}
.ellie-wrap img{display:block;width:100%;height:auto}
@media (prefers-reduced-motion:no-preference){
  .ellie-wrap.m-ok img{animation:hop .6s var(--ease)}
  .ellie-wrap.m-bad img{animation:wobble .55s ease-in-out}
  .ellie-wrap.m-hint img{animation:tilt .9s ease-in-out}
}
@keyframes hop{40%{transform:translateY(-22px) scale(1.04)}70%{transform:translateY(0) scaleY(.96)}}
@keyframes wobble{20%{transform:rotate(-7deg)}40%{transform:rotate(6deg)}60%{transform:rotate(-4deg)}80%{transform:rotate(2deg)}}
@keyframes tilt{40%,60%{transform:rotate(-8deg) translateY(-4px)}}
.coach-btns{display:flex;flex-wrap:wrap;justify-content:center;gap:8px;margin-top:4px}
@media (max-width:979px){.coach{flex-direction:row;flex-wrap:wrap;align-items:flex-end}.bubble{flex:1 1 240px;min-height:120px}.bubble::after{left:auto;right:-13px;bottom:30px;transform:rotate(-45deg)}.ellie-wrap{width:120px;margin:0}.coach-btns{width:100%}}
.lab-done{margin-top:22px;padding:22px;border-radius:18px;background:var(--sun-lt);border:2.5px solid var(--ink)}
.lab-done h3{font-size:1.5rem;outline:none}
.confetti{position:absolute;inset:0;pointer-events:none;overflow:hidden;z-index:10}
.confetti i{position:absolute;top:-12px;width:10px;height:14px;border-radius:3px;animation:fall 1.8s ease-in forwards}
@keyframes fall{to{transform:translateY(720px) rotate(560deg);opacity:.2}}

/* ---------- Comparison table ---------- */
.compare-wrap{overflow-x:auto;border:3px solid var(--ink);border-radius:var(--r);box-shadow:var(--pop-lg);background:#fff}
.compare{width:100%;min-width:700px;border-collapse:collapse}
.compare caption{text-align:left;padding:16px 18px 0;font-weight:700;color:var(--muted)}
.compare th,.compare td{padding:14px 18px;border-bottom:1.5px solid var(--line);text-align:left;vertical-align:top}
.compare thead th{font:600 1.05rem/1.2 var(--f-head);background:var(--cream)}
.compare tbody th{font-weight:800;width:24%}
.compare .us{background:var(--mint-lt);font-weight:700}
.compare thead .us{background:var(--green-dk);color:#fff}
.compare tr:last-child>*{border-bottom:0}
.y{color:var(--green-dk);font-weight:800}.n{color:var(--rose);font-weight:800}

/* ---------- Cards ---------- */
.card{background:#fff;border:2.5px solid var(--ink);border-radius:var(--r);padding:24px;box-shadow:var(--pop);transition:transform .2s var(--ease),box-shadow .2s}
.card>:last-child{margin-bottom:0}
a.card{display:block;color:var(--ink);text-decoration:none;font-weight:500;position:relative}
a.card:hover{transform:translateY(-4px) rotate(-.4deg);box-shadow:0 8px 0 var(--ink)}
a.card .go{display:inline-flex;align-items:center;gap:6px;margin-top:12px;font-weight:800;color:var(--green-dk)}
a.card:hover .go{gap:10px}
.grid-cards{display:grid;gap:18px;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));list-style:none;margin:0;padding:0}
.ico{display:grid;place-items:center;width:52px;height:52px;border-radius:16px;border:2.5px solid var(--ink);font-size:1.6rem;margin-bottom:14px;box-shadow:0 3px 0 var(--ink)}
.bg-mint{background:var(--mint)}.bg-pink{background:var(--blush)}.bg-sun{background:var(--sun-lt)}.bg-sky{background:var(--sky-lt)}.bg-lilac{background:var(--lilac-lt)}
.card ul{margin:.4em 0 0;padding-left:1.1em;color:var(--ink-soft)}
.card li{margin-bottom:3px}

/* ---------- Learning path ---------- */
.path{list-style:none;margin:0;padding:0;display:grid;gap:18px;grid-template-columns:repeat(auto-fit,minmax(270px,1fr));counter-reset:lvl}
.level{position:relative;padding-top:30px}
.level .lvl-n{position:absolute;top:-16px;left:20px;font:700 .85rem/1 var(--f-mono);background:var(--ink);color:#fff;padding:7px 12px;border-radius:999px}
.level .chips{display:flex;flex-wrap:wrap;gap:6px;margin-top:10px}
.level .chips span{font:600 .76rem/1.4 var(--f-mono);padding:2px 8px;border-radius:8px;background:var(--cream);border:1.5px solid var(--ink)}
.level.cert{background:var(--sun)}
.level.new::before{content:"New";position:absolute;top:-14px;right:18px;background:var(--pink);border:2px solid var(--ink);border-radius:999px;padding:2px 10px;font:700 .75rem/1.4 var(--f-body)}

/* ---------- Bands ---------- */
.band{border-top:2.5px solid var(--ink);border-bottom:2.5px solid var(--ink)}
.band-mint{background:var(--mint)}
.band-sun{background:var(--sun-lt)}
.band-pink{background:var(--blush)}
.band-ink{background:var(--ink);color:#fff}
.band-ink .lede{color:#D8D3E8}
.band-ink a:not(.btn){color:var(--sun)}

/* Focus features */
.features{display:grid;gap:18px;grid-template-columns:repeat(auto-fit,minmax(220px,1fr))}
.feature{background:#fff;border:2.5px solid var(--ink);border-radius:var(--r);padding:20px;box-shadow:var(--pop)}
.feature b{display:block;font:600 1.15rem/1.2 var(--f-head);margin:6px 0}
.feature .ico{margin-bottom:6px}

/* AI band */
.ai-grid{display:grid;gap:26px;align-items:center}
@media (min-width:900px){.ai-grid{grid-template-columns:1fr 1fr}}
.prompt-card{background:#1E1830;border:2.5px solid #fff;border-radius:var(--r);padding:20px;font:500 .92rem/1.6 var(--f-mono);box-shadow:0 6px 0 #000}
.prompt-card .me{color:var(--sun)}.prompt-card .ai{color:#C9C0FF}.prompt-card .el{color:var(--mint)}
.prompt-card p{margin:0 0 12px}

/* Certificate */
.cert-grid{display:grid;gap:36px;align-items:center}
@media (min-width:900px){.cert-grid{grid-template-columns:1.05fr 1fr}}
.cert{position:relative;background:#fff;border:3px solid var(--ink);border-radius:22px;padding:30px;box-shadow:var(--pop-lg);transform:rotate(1.2deg)}
.cert::before{content:"";position:absolute;inset:10px;border:2px dashed var(--green);border-radius:14px;pointer-events:none}
.cert-sample{position:absolute;top:16px;right:16px;background:var(--ink);color:#fff;font:700 .72rem/1.4 var(--f-mono);padding:3px 10px;border-radius:999px;text-transform:uppercase;letter-spacing:.1em}
.cert-brand{font:700 .95rem/1.2 var(--f-head);color:var(--green-dk)}
.cert-name{font:700 2rem/1.1 var(--f-head);margin:6px 0 16px}
.cert dl{display:grid;grid-template-columns:repeat(3,auto);gap:8px 22px;justify-content:start;margin:0 0 16px}
.cert dt{font-size:.78rem;color:var(--muted);font-weight:700}
.cert dd{margin:0;font:700 1rem/1.3 var(--f-mono)}
.cert-verify{display:flex;align-items:center;gap:10px;flex-wrap:wrap;font:600 .88rem/1.3 var(--f-mono);overflow-wrap:anywhere}
.cert-verify .tick{display:grid;place-items:center;width:26px;height:26px;border-radius:50%;background:var(--green);color:#fff;border:2px solid var(--ink)}
.cert-seal{position:absolute;bottom:-26px;right:-12px;width:110px}
@media (max-width:440px){.cert dl{grid-template-columns:1fr 1fr}}
.ticks{list-style:none;margin:0 0 22px;padding:0}
.ticks li{position:relative;padding-left:30px;margin-bottom:9px}
.ticks li::before{content:"✓";position:absolute;left:0;top:2px;display:grid;place-items:center;width:20px;height:20px;border-radius:6px;background:var(--green);color:#fff;font-size:.75rem;font-weight:800}

/* FAQ */
.faq{max-width:920px}
.faq details{background:#fff;border:2.5px solid var(--ink);border-radius:16px;margin-bottom:12px;box-shadow:0 3px 0 var(--ink)}
.faq summary{list-style:none;cursor:pointer;display:flex;justify-content:space-between;align-items:center;gap:16px;padding:16px 20px}
.faq summary::-webkit-details-marker{display:none}
.faq summary h3{margin:0;font-size:1.1rem}
.faq summary::after{content:"+";display:grid;place-items:center;flex:none;width:30px;height:30px;border-radius:50%;background:var(--sun);border:2px solid var(--ink);font:700 1.2rem/1 var(--f-mono);transition:transform .2s}
.faq details[open] summary::after{transform:rotate(45deg);background:var(--pink)}
.faq details p{padding:0 20px 18px;margin:0;max-width:48em;color:var(--ink-soft)}

/* Final CTA */
.final{display:grid;gap:24px;align-items:center;text-align:center;justify-items:center}
.final img{width:160px}

/* Privacy */
.privacy dl{display:grid;gap:12px;margin:0}
.privacy dt{font-weight:800}.privacy dd{margin:0;color:var(--ink-soft)}

/* Footer */
.site-footer{background:var(--ink);color:#D8D3E8;padding:56px 0 36px}
.site-footer a{color:#fff;font-weight:600}
.site-footer a:hover{color:var(--sun)}
.foot-grid{display:grid;gap:30px;margin-bottom:30px}
@media (min-width:800px){.foot-grid{grid-template-columns:1.4fr 1fr 1fr 1fr}}
.foot-h{font:700 .78rem/1.3 var(--f-mono);text-transform:uppercase;letter-spacing:.12em;color:var(--sun);margin-bottom:12px}
.site-footer ul{list-style:none;margin:0;padding:0}
.site-footer li{margin-bottom:8px}
.site-footer .wm{color:#fff}.site-footer .wm b{color:var(--mint)}
.foot-legal{color:#B5AECB;font-size:.88rem;max-width:62em;margin-bottom:.5em}

/* ---------- start.html (upgrading page) ---------- */
.up{padding:56px 0 80px}
.up-grid{display:grid;gap:36px;align-items:center}
@media (min-width:900px){.up-grid{grid-template-columns:1.1fr .9fr}}
.up-going{display:inline-block;background:var(--sun);border:2.5px solid var(--ink);border-radius:14px;padding:8px 14px;font-weight:800;box-shadow:var(--pop);margin-bottom:18px}
.up-cells{display:grid;grid-template-columns:repeat(8,1fr);gap:6px;max-width:420px;margin-top:22px}
.up-cells span{aspect-ratio:1;border-radius:8px;border:2px solid var(--ink);background:#fff;transition:background-color .3s}
.up-cells span.f{background:var(--green)} .up-cells span.p{background:var(--pink)} .up-cells span.s{background:var(--sun)}
.panel{background:#fff;border:2.5px solid var(--ink);border-radius:var(--r);padding:24px;box-shadow:var(--pop);margin-top:24px;max-width:760px}
.panel h2{font-size:1.4rem}
.opts{display:flex;flex-wrap:wrap;gap:10px}
.opts button{font:700 .98rem/1.3 var(--f-body);padding:10px 16px;border-radius:14px;border:2.5px solid var(--ink);background:#fff;color:var(--ink);cursor:pointer;box-shadow:0 3px 0 var(--ink)}
.opts button:hover{background:var(--sun-lt)}
.opts button[aria-pressed="true"]{background:var(--green-dk);color:#fff}
.field{width:100%;max-width:420px;height:52px;padding:0 14px;border:2.5px solid var(--ink);border-radius:14px;font:inherit;background:#fff}
.field:focus{outline:3px solid var(--green);outline-offset:1px}
.check{display:flex;gap:10px;align-items:flex-start;margin:12px 0 16px;max-width:540px}
.check input{width:20px;height:20px;margin-top:3px;accent-color:var(--green-dk);flex:none}
.thanks{font-weight:800;color:var(--green-dk);min-height:1.5em;margin:12px 0 0}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}
}