/* ============================================================
   Kilo — shared design system
   Amber-on-ink identity · Bricolage Grotesque / Manrope / JetBrains Mono
   ============================================================ */
:root{
  --bg:#F4F6F9;
  --surface:#FFFFFF;
  --surface-2:#EBEEF3;
  --surface-3:#E2E7EE;
  --border:#DCE1E9;
  --border-strong:#C6CDDA;
  --text:#111621;
  --text-dim:#586173;
  --text-faint:#8A93A5;
  --accent:#F5A524;
  --accent-2:#FF8A3D;
  --accent-ink:#2a1c02;
  --accent-soft:rgba(245,165,36,.14);
  --success:#0FA65A;
  --success-soft:rgba(15,166,90,.12);
  --danger:#E0483D;
  --danger-soft:rgba(224,72,61,.12);
  --info:#2F7BF6;
  --info-soft:rgba(47,123,246,.12);
  --shadow:0 1px 2px rgba(16,22,34,.04), 0 12px 30px -12px rgba(16,22,34,.14);
  --shadow-lg:0 30px 70px -28px rgba(16,22,34,.30);
  --radius:18px;
  --radius-sm:12px;
  --maxw:1180px;
  --nav-h:66px;
}
@media (prefers-color-scheme:dark){
  :root:not([data-theme="light"]){
    --bg:#0B0E13;--surface:#12161D;--surface-2:#1A1F29;--surface-3:#222834;
    --border:#242B37;--border-strong:#333C4B;
    --text:#EEF1F6;--text-dim:#98A2B3;--text-faint:#6B7688;
    --accent:#F5A524;--accent-2:#FF9A4A;--accent-ink:#2a1c02;--accent-soft:rgba(245,165,36,.16);
    --success:#3AD98C;--success-soft:rgba(58,217,140,.14);
    --danger:#FF6B60;--danger-soft:rgba(255,107,96,.14);
    --info:#5C9BFF;--info-soft:rgba(92,155,255,.14);
    --shadow:0 1px 2px rgba(0,0,0,.4), 0 18px 40px -18px rgba(0,0,0,.6);
    --shadow-lg:0 40px 90px -30px rgba(0,0,0,.7);
  }
}
:root[data-theme="dark"]{
  --bg:#0B0E13;--surface:#12161D;--surface-2:#1A1F29;--surface-3:#222834;
  --border:#242B37;--border-strong:#333C4B;
  --text:#EEF1F6;--text-dim:#98A2B3;--text-faint:#6B7688;
  --accent:#F5A524;--accent-2:#FF9A4A;--accent-ink:#2a1c02;--accent-soft:rgba(245,165,36,.16);
  --success:#3AD98C;--success-soft:rgba(58,217,140,.14);
  --danger:#FF6B60;--danger-soft:rgba(255,107,96,.14);
  --info:#5C9BFF;--info-soft:rgba(92,155,255,.14);
  --shadow:0 1px 2px rgba(0,0,0,.4), 0 18px 40px -18px rgba(0,0,0,.6);
  --shadow-lg:0 40px 90px -30px rgba(0,0,0,.7);
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{animation-duration:.001ms !important;transition-duration:.001ms !important}}
body{background:var(--bg);color:var(--text);font-family:"Manrope",system-ui,-apple-system,Segoe UI,Roboto,sans-serif;
  line-height:1.55;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;overflow-x:hidden;min-height:100vh}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 24px}
.mono{font-family:"JetBrains Mono",ui-monospace,SFMono-Regular,Menlo,monospace;font-variant-numeric:tabular-nums}
h1,h2,h3{font-family:"Bricolage Grotesque",system-ui,sans-serif;font-weight:800;letter-spacing:-.02em;line-height:1.05;text-wrap:balance}
a{color:inherit;text-decoration:none}
img{max-width:100%}
.eyebrow{font-family:"JetBrains Mono",monospace;font-size:12px;letter-spacing:.16em;text-transform:uppercase;color:var(--text-faint);font-weight:500}
.grad{background:linear-gradient(120deg,var(--accent),var(--accent-2));-webkit-background-clip:text;background-clip:text;color:transparent}
.center{text-align:center}
.hidden{display:none !important}

/* ---------- nav ---------- */
.nav{position:sticky;top:0;z-index:50;backdrop-filter:blur(14px);background:color-mix(in srgb,var(--bg) 80%,transparent);
  border-bottom:1px solid transparent;transition:border-color .3s}
.nav.scrolled{border-color:var(--border)}
.nav-in{display:flex;align-items:center;justify-content:space-between;height:var(--nav-h);gap:16px}
.brand{display:flex;align-items:center;gap:10px;font-family:"Bricolage Grotesque",sans-serif;font-weight:800;font-size:20px;letter-spacing:-.03em;flex-shrink:0}
.brand .mark{width:30px;height:30px;border-radius:9px;background:linear-gradient(135deg,var(--accent),var(--accent-2));
  display:grid;place-items:center;color:var(--accent-ink);box-shadow:0 4px 14px -4px var(--accent)}
.brand .mark svg{width:18px;height:18px}
.nav-links{display:flex;align-items:center;gap:26px}
.nav-links a{font-size:14px;color:var(--text-dim);font-weight:500;transition:color .2s}
.nav-links a:hover,.nav-links a.active{color:var(--text)}
.nav-right{display:flex;align-items:center;gap:12px}
@media(max-width:820px){.nav-links{display:none}}
.badge-live{display:inline-flex;align-items:center;gap:7px;font-family:"JetBrains Mono",monospace;font-size:11px;letter-spacing:.06em;
  color:var(--success);background:var(--success-soft);padding:6px 11px;border-radius:100px;font-weight:500;white-space:nowrap}
.badge-live .dot{width:6px;height:6px;border-radius:50%;background:var(--success);animation:pulse 2.4s infinite}
@keyframes pulse{0%{box-shadow:0 0 0 0 color-mix(in srgb,var(--success) 60%,transparent)}70%{box-shadow:0 0 0 7px transparent}100%{box-shadow:0 0 0 0 transparent}}
@media(max-width:560px){.badge-live{display:none}}
.icon-btn{width:38px;height:38px;border-radius:11px;border:1px solid var(--border);background:var(--surface);color:var(--text-dim);
  display:grid;place-items:center;cursor:pointer;transition:.2s;flex-shrink:0}
.icon-btn:hover{color:var(--text);border-color:var(--border-strong);transform:translateY(-1px)}
.icon-btn svg{width:18px;height:18px}
.sun{display:none}
:root[data-theme="dark"] .sun{display:block}
:root[data-theme="dark"] .moon{display:none}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]) .sun{display:block}:root:not([data-theme="light"]) .moon{display:none}}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:11px 18px;border-radius:12px;font-weight:600;font-size:14px;
  cursor:pointer;border:1px solid var(--border);background:var(--surface);color:var(--text);transition:.2s;font-family:inherit;white-space:nowrap}
.btn:hover{border-color:var(--border-strong);transform:translateY(-1px)}
.btn:disabled{opacity:.5;cursor:not-allowed;transform:none}
.btn svg{width:16px;height:16px;flex-shrink:0}
.btn.primary{background:linear-gradient(135deg,var(--accent),var(--accent-2));color:var(--accent-ink);border-color:transparent;box-shadow:0 8px 20px -8px var(--accent)}
.btn.primary:hover{box-shadow:0 12px 26px -8px var(--accent)}
.btn.ghost{background:transparent;border-color:var(--border)}
.btn.danger{color:var(--danger);border-color:var(--border)}
.btn.danger:hover{background:var(--danger-soft);border-color:var(--danger)}
.btn.lg{padding:13px 24px;font-size:15px;border-radius:14px}
.btn.block{width:100%}

/* ---------- dropzone ---------- */
.drop{position:relative;border:2px dashed var(--border-strong);border-radius:24px;background:var(--surface);
  padding:48px 30px;text-align:center;cursor:pointer;transition:.28s cubic-bezier(.16,1,.3,1);box-shadow:var(--shadow);overflow:hidden}
.drop::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent,var(--accent-soft));opacity:0;transition:.3s;pointer-events:none}
.drop:hover{border-color:var(--accent);transform:translateY(-2px);box-shadow:var(--shadow-lg)}
.drop.drag{border-color:var(--accent);border-style:solid;transform:scale(1.01)}
.drop.drag::after{opacity:1}
.drop-ico{width:62px;height:62px;margin:0 auto 16px;border-radius:18px;background:var(--accent-soft);display:grid;place-items:center;color:var(--accent);transition:.3s}
.drop:hover .drop-ico{transform:translateY(-4px) rotate(-4deg)}
.drop-ico svg{width:28px;height:28px}
.drop h3{font-size:21px;font-weight:700}
.drop p{color:var(--text-dim);margin-top:8px;font-size:14.5px}
.drop .pill{margin-top:18px;display:inline-flex;align-items:center;gap:8px;padding:11px 22px;border-radius:100px;
  background:linear-gradient(135deg,var(--accent),var(--accent-2));color:var(--accent-ink);font-weight:700;font-size:14.5px;box-shadow:0 8px 22px -8px var(--accent);transition:.2s}
.drop:hover .pill{transform:translateY(-1px)}
.drop .fmts{margin-top:15px;font-family:"JetBrains Mono",monospace;font-size:11.5px;color:var(--text-faint);letter-spacing:.05em}
.scanline{position:absolute;left:0;right:0;height:2px;background:linear-gradient(90deg,transparent,var(--accent),transparent);top:0;opacity:0;filter:blur(.5px)}
.drop.drag .scanline{opacity:.9;animation:scan 1.2s linear infinite}
@keyframes scan{0%{top:0}100%{top:100%}}

/* ---------- hero (hub) ---------- */
.hero{position:relative;padding:64px 0 30px}
.hero-glow{position:absolute;inset:0;overflow:hidden;pointer-events:none;z-index:0}
.hero-glow::before{content:"";position:absolute;top:-160px;left:50%;transform:translateX(-50%);width:900px;height:560px;
  background:radial-gradient(ellipse at center,var(--accent-soft),transparent 62%);filter:blur(20px)}
.hero-in{position:relative;z-index:1;text-align:center;max-width:840px;margin:0 auto}
.hero .eyebrow{display:inline-flex;align-items:center;gap:9px;padding:7px 14px;border:1px solid var(--border);border-radius:100px;background:var(--surface);box-shadow:var(--shadow)}
.hero .eyebrow svg{width:13px;height:13px;color:var(--accent)}
h1.title{font-size:clamp(40px,6.5vw,74px);margin:24px 0 0;line-height:.99}
.sub{font-size:clamp(16px,2.2vw,20px);color:var(--text-dim);max-width:600px;margin:22px auto 0;font-weight:500}
.trust{display:flex;flex-wrap:wrap;gap:10px 22px;justify-content:center;margin-top:26px}
.trust span{display:inline-flex;align-items:center;gap:8px;font-size:13.5px;color:var(--text-dim);font-weight:500}
.trust svg{width:15px;height:15px;color:var(--success)}

/* stagger + reveal */
.rise{opacity:0;transform:translateY(18px);animation:rise .8s cubic-bezier(.16,1,.3,1) forwards}
.rise.d1{animation-delay:.05s}.rise.d2{animation-delay:.14s}.rise.d3{animation-delay:.23s}.rise.d4{animation-delay:.32s}.rise.d5{animation-delay:.42s}
@keyframes rise{to{opacity:1;transform:none}}
.reveal{opacity:0;transform:translateY(28px);transition:opacity .7s cubic-bezier(.16,1,.3,1),transform .7s cubic-bezier(.16,1,.3,1)}
.reveal.in{opacity:1;transform:none}

/* ---------- search + tool grid (hub) ---------- */
.toolsearch{max-width:560px;margin:30px auto 0;position:relative}
.toolsearch svg{position:absolute;left:18px;top:50%;transform:translateY(-50%);width:19px;height:19px;color:var(--text-faint)}
.toolsearch input{width:100%;padding:15px 18px 15px 48px;border-radius:14px;border:1px solid var(--border);background:var(--surface);
  color:var(--text);font-size:15.5px;font-family:inherit;box-shadow:var(--shadow);transition:.2s}
.toolsearch input:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 4px var(--accent-soft)}

.cat{padding:44px 0 0}
.cat-head{display:flex;align-items:center;gap:12px;margin-bottom:20px}
.cat-head .ci{width:38px;height:38px;border-radius:11px;display:grid;place-items:center;flex-shrink:0}
.cat-head .ci svg{width:20px;height:20px}
.cat-head h2{font-size:22px}
.cat-head .count{font-family:"JetBrains Mono",monospace;font-size:12px;color:var(--text-faint);margin-left:auto}

.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(232px,1fr));gap:16px}
.tile{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:22px;display:flex;flex-direction:column;gap:10px;
  box-shadow:var(--shadow);transition:.26s cubic-bezier(.16,1,.3,1);position:relative;overflow:hidden}
.tile:hover{transform:translateY(-4px);border-color:var(--border-strong);box-shadow:var(--shadow-lg)}
.tile .ti{width:44px;height:44px;border-radius:12px;background:var(--accent-soft);color:var(--accent);display:grid;place-items:center;transition:.26s}
.tile:hover .ti{transform:scale(1.08) rotate(-4deg)}
.tile .ti svg{width:22px;height:22px}
.tile h3{font-size:16.5px;font-weight:700}
.tile p{color:var(--text-dim);font-size:13.5px;line-height:1.5}
.tile .arrow{position:absolute;top:22px;right:22px;color:var(--text-faint);opacity:0;transform:translateX(-6px);transition:.26s}
.tile:hover .arrow{opacity:1;transform:none;color:var(--accent)}
.tile .arrow svg{width:18px;height:18px}
.tag{position:absolute;top:0;right:0;font-family:"JetBrains Mono",monospace;font-size:9.5px;letter-spacing:.08em;text-transform:uppercase;
  padding:4px 9px;border-bottom-left-radius:10px;font-weight:600}
.tag.beta{background:var(--info-soft);color:var(--info)}
.tag.new{background:var(--accent-soft);color:var(--accent)}
.cat-empty{color:var(--text-faint);font-size:14px;padding:20px 0}

/* category accent variants */
.c-pdf .ci,.c-pdf.ti{background:var(--danger-soft);color:var(--danger)}
.c-img .ci{background:var(--accent-soft);color:var(--accent)}
.c-doc .ci{background:var(--info-soft);color:var(--info)}
.c-sheet .ci{background:var(--success-soft);color:var(--success)}
.c-edit .ci{background:var(--accent-soft);color:var(--accent)}

/* ---------- tool page ---------- */
.tool-hero{padding:38px 0 8px;position:relative}
.crumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--text-faint);margin-bottom:16px}
.crumb a{color:var(--text-dim)}.crumb a:hover{color:var(--text)}
.crumb svg{width:13px;height:13px}
.tool-hero .ico{width:56px;height:56px;border-radius:16px;display:grid;place-items:center;margin-bottom:16px}
.tool-hero .ico svg{width:28px;height:28px}
.tool-hero h1{font-size:clamp(30px,4.4vw,44px)}
.tool-hero p{color:var(--text-dim);font-size:17px;max-width:620px;margin-top:12px}
.tool-body{padding:22px 0 70px}
.panel{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);padding:22px}
.panel + .panel{margin-top:18px}
.note{background:var(--info-soft);border:1px solid color-mix(in srgb,var(--info) 30%,transparent);color:var(--text-dim);
  border-radius:var(--radius-sm);padding:14px 16px;font-size:13.5px;display:flex;gap:10px;align-items:flex-start;margin-top:16px}
.note svg{width:17px;height:17px;color:var(--info);flex-shrink:0;margin-top:1px}
.note.warn{background:var(--accent-soft);border-color:color-mix(in srgb,var(--accent) 34%,transparent)}
.note.warn svg{color:var(--accent)}

/* toolbar / actions row */
.toolbar{display:flex;flex-wrap:wrap;gap:10px;align-items:center}
.toolbar .spacer{flex:1}

/* ---------- controls ---------- */
.ctl{display:flex;align-items:center;gap:12px}
.ctl label{font-size:12.5px;color:var(--text-dim);font-weight:600;width:82px;flex-shrink:0}
.ctl .val{font-family:"JetBrains Mono",monospace;font-size:12.5px;color:var(--text);width:60px;text-align:right;flex-shrink:0}
input[type=range]{-webkit-appearance:none;appearance:none;flex:1;height:5px;border-radius:5px;background:var(--surface-2);outline:none;cursor:pointer}
input[type=range]::-webkit-slider-thumb{-webkit-appearance:none;width:17px;height:17px;border-radius:50%;background:var(--accent);border:3px solid var(--surface);box-shadow:0 1px 5px rgba(0,0,0,.25);transition:transform .15s}
input[type=range]::-webkit-slider-thumb:hover{transform:scale(1.15)}
input[type=range]::-moz-range-thumb{width:14px;height:14px;border-radius:50%;background:var(--accent);border:3px solid var(--surface)}
input[type=range]:disabled{opacity:.5}
.field{display:flex;flex-direction:column;gap:7px}
.field label{font-size:12.5px;color:var(--text-dim);font-weight:600}
.input,select.input{width:100%;padding:11px 13px;border-radius:11px;border:1px solid var(--border);background:var(--surface-2);color:var(--text);font-family:inherit;font-size:14px;transition:.2s}
.input:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-soft)}
.seg{display:flex;background:var(--surface-2);border-radius:10px;padding:3px;gap:2px}
.seg button{flex:1;border:none;background:none;font-family:"JetBrains Mono",monospace;font-size:11.5px;font-weight:600;color:var(--text-dim);
  padding:8px 6px;border-radius:7px;cursor:pointer;transition:.18s;text-transform:uppercase;letter-spacing:.03em}
.seg button.on{background:var(--surface);color:var(--text);box-shadow:var(--shadow)}

/* ---------- compare slider ---------- */
.compare{position:relative;background:
   linear-gradient(45deg,var(--surface-2) 25%,transparent 25%),linear-gradient(-45deg,var(--surface-2) 25%,transparent 25%),
   linear-gradient(45deg,transparent 75%,var(--surface-2) 75%),linear-gradient(-45deg,transparent 75%,var(--surface-2) 75%);
   background-size:18px 18px;background-position:0 0,0 9px,9px -9px,-9px 0;min-height:200px;overflow:hidden;border-radius:var(--radius-sm)}
.compare img{display:block;width:100%;height:100%;object-fit:contain;position:absolute;inset:0}
.compare .base{z-index:1}
.compare .top{z-index:2;clip-path:inset(0 50% 0 0)}
.cmp-range{position:absolute;inset:0;width:100%;height:100%;opacity:0;cursor:ew-resize;z-index:4;margin:0}
.cmp-div{position:absolute;top:0;bottom:0;left:50%;width:2px;background:#fff;z-index:3;box-shadow:0 0 0 1px rgba(0,0,0,.15);transform:translateX(-1px)}
.cmp-div::after{content:"";position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:30px;height:30px;border-radius:50%;background:#fff;box-shadow:0 2px 8px rgba(0,0,0,.35);
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='20' height='20' viewBox='0 0 24 24' fill='none' stroke='%23111' stroke-width='2.2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m9 7-5 5 5 5'/%3E%3Cpath d='m15 7 5 5-5 5'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:center}
.cmp-tag{position:absolute;z-index:3;top:10px;font-family:"JetBrains Mono",monospace;font-size:10px;letter-spacing:.08em;padding:4px 8px;border-radius:6px;background:rgba(0,0,0,.62);color:#fff;text-transform:uppercase}
.cmp-tag.l{left:10px}.cmp-tag.r{right:10px;background:var(--accent);color:var(--accent-ink)}

/* ---------- file/page thumbs ---------- */
.thumbs{display:grid;grid-template-columns:repeat(auto-fill,minmax(130px,1fr));gap:14px}
.thumb{position:relative;background:var(--surface-2);border:1px solid var(--border);border-radius:var(--radius-sm);overflow:hidden;aspect-ratio:3/4;display:grid;place-items:center;cursor:grab}
.thumb.dragging{opacity:.4}
.thumb canvas,.thumb img{max-width:100%;max-height:100%;display:block}
.thumb .pn{position:absolute;bottom:0;left:0;right:0;background:rgba(0,0,0,.6);color:#fff;font-family:"JetBrains Mono",monospace;font-size:11px;text-align:center;padding:3px}
.thumb .x{position:absolute;top:6px;right:6px;width:24px;height:24px;border-radius:7px;background:rgba(0,0,0,.6);color:#fff;border:none;cursor:pointer;display:grid;place-items:center}
.thumb .x svg{width:13px;height:13px}
.thumb .rot{position:absolute;top:6px;left:6px;width:24px;height:24px;border-radius:7px;background:rgba(0,0,0,.6);color:#fff;border:none;cursor:pointer;display:grid;place-items:center}
.thumb .rot svg{width:13px;height:13px}

/* result card (image compress) */
.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);display:grid;grid-template-columns:280px 1fr;margin-top:16px}
@media(max-width:680px){.card{grid-template-columns:1fr}}
.card-body{padding:20px 22px;display:flex;flex-direction:column;gap:16px}
.card-name{display:flex;align-items:center;justify-content:space-between;gap:12px}
.card-name .nm{font-weight:700;font-size:15px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.rm{color:var(--text-faint);cursor:pointer;background:none;border:none;padding:4px;border-radius:6px;transition:.2s}
.rm:hover{color:var(--text);background:var(--surface-2)}
.rm svg{width:16px;height:16px;display:block}
.stat{display:flex;align-items:center;gap:14px;flex-wrap:wrap}
.stat .sizes{display:flex;align-items:baseline;gap:9px;font-family:"JetBrains Mono",monospace;font-size:14px}
.stat .old{color:var(--text-faint);text-decoration:line-through}
.stat .arw{color:var(--text-faint)}
.stat .new{color:var(--text);font-weight:700}
.saved{margin-left:auto;font-family:"Bricolage Grotesque",sans-serif;font-weight:800;font-size:26px;color:var(--success);line-height:1}
.saved small{font-size:12px;font-family:"JetBrains Mono",monospace;color:var(--text-faint);font-weight:500;display:block;text-align:right;letter-spacing:.05em}
.controls{display:flex;flex-direction:column;gap:14px;border-top:1px solid var(--border);padding-top:16px}

/* spinner */
.spin{width:18px;height:18px;border:2.5px solid var(--accent-soft);border-top-color:var(--accent);border-radius:50%;animation:sp .7s linear infinite;display:inline-block}
@keyframes sp{to{transform:rotate(360deg)}}
.loading{display:flex;align-items:center;gap:10px;color:var(--text-dim);font-size:14px;padding:8px 0}

/* progress bar */
.bar{height:8px;border-radius:8px;background:var(--surface-2);overflow:hidden}
.bar>i{display:block;height:100%;background:linear-gradient(90deg,var(--accent),var(--accent-2));width:0;transition:width .3s}

/* ---------- sections / faq / footer (shared) ---------- */
section.blk{padding:70px 0}
.sec-head{text-align:center;max-width:640px;margin:0 auto 44px}
.sec-head h2{font-size:clamp(26px,4vw,38px);margin-top:12px}
.sec-head p{color:var(--text-dim);margin-top:12px;font-size:16px}
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
@media(max-width:760px){.steps{grid-template-columns:1fr}}
.step{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:28px 24px;box-shadow:var(--shadow);transition:.3s}
.step:hover{transform:translateY(-4px);border-color:var(--border-strong)}
.step .num{font-family:"JetBrains Mono",monospace;font-size:12px;color:var(--accent);font-weight:700;letter-spacing:.1em}
.step .si{width:44px;height:44px;border-radius:12px;background:var(--accent-soft);color:var(--accent);display:grid;place-items:center;margin:14px 0 16px}
.step .si svg{width:22px;height:22px}
.step h3{font-size:18px}.step p{color:var(--text-dim);margin-top:8px;font-size:14px}
.faq{max-width:760px;margin:0 auto;display:flex;flex-direction:column;gap:12px}
.qa{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-sm);overflow:hidden}
.qa summary{list-style:none;cursor:pointer;padding:19px 22px;font-weight:700;font-size:15.5px;display:flex;justify-content:space-between;align-items:center;gap:12px}
.qa summary::-webkit-details-marker{display:none}
.qa summary .c{width:22px;height:22px;flex-shrink:0;color:var(--text-faint);transition:transform .3s}
.qa[open] summary .c{transform:rotate(45deg);color:var(--accent)}
.qa .a{padding:0 22px 20px;color:var(--text-dim);font-size:14.5px}
footer{border-top:1px solid var(--border);padding:40px 0;margin-top:20px}
.foot{display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap;color:var(--text-faint);font-size:13.5px}
.foot .brand{font-size:17px}
.foot-links{display:flex;gap:18px;flex-wrap:wrap}
.foot a{color:var(--text-dim);transition:.2s}.foot a:hover{color:var(--text)}

/* ---------- toast ---------- */
.toast{position:fixed;bottom:24px;left:50%;transform:translate(-50%,20px);background:var(--text);color:var(--bg);padding:12px 20px;border-radius:100px;
  font-size:14px;font-weight:600;box-shadow:var(--shadow-lg);opacity:0;pointer-events:none;transition:.3s;z-index:100;display:flex;align-items:center;gap:9px;max-width:90vw}
.toast.on{opacity:1;transform:translate(-50%,0)}
.toast svg{width:16px;height:16px;color:var(--accent);flex-shrink:0}
.toast.err svg{color:var(--danger)}