:root{
  --bg:#f7f8fb; --surface:#ffffff; --surface-2:#eef1f6; --text:#131722; --muted:#667085;
  --border:#dde2ea; --accent:#111827; --accent-text:#ffffff; --shadow:0 10px 30px rgba(17,24,39,.08);
}
:root[data-theme="dark"]{
  --bg:#0d1117; --surface:#151b23; --surface-2:#1d2530; --text:#f4f7fb; --muted:#a8b3c2;
  --border:#2b3542; --accent:#f4f7fb; --accent-text:#10151d; --shadow:0 10px 30px rgba(0,0,0,.25);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--text);font:16px/1.55 Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}
a{color:inherit;text-decoration:none}
button,input,textarea,select{font:inherit}
.topbar{position:sticky;top:0;z-index:20;display:flex;justify-content:space-between;align-items:center;padding:14px max(18px,calc((100vw - 1180px)/2));background:color-mix(in srgb,var(--bg) 86%, transparent);backdrop-filter:blur(14px);border-bottom:1px solid var(--border)}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:20px}
.brand-mark{display:grid;place-items:center;width:36px;height:36px;border-radius:12px;background:var(--accent);color:var(--accent-text)}
.top-actions{display:flex;gap:8px}
.ghost-btn,.secondary-btn,.primary-btn{border:1px solid var(--border);border-radius:12px;padding:10px 14px;cursor:pointer}
.ghost-btn,.secondary-btn{background:var(--surface);color:var(--text)}
.primary-btn{background:var(--accent);border-color:var(--accent);color:var(--accent-text);font-weight:700}
.hero{max-width:1180px;margin:auto;padding:84px 18px 48px}
.hero h1{font-size:clamp(40px,7vw,76px);line-height:1.02;letter-spacing:-.04em;max-width:920px;margin:16px 0}
.hero p{max-width:760px;color:var(--muted);font-size:clamp(18px,2.4vw,22px)}
.badge,.eyebrow{display:inline-block;font-size:13px;font-weight:800;letter-spacing:.08em;text-transform:uppercase;color:var(--muted)}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:28px}
.section{max-width:1180px;margin:auto;padding:46px 18px}
.section-head{display:flex;justify-content:space-between;gap:24px;align-items:end;margin-bottom:24px}
.section-head h2,.info-panel h2{font-size:clamp(28px,4vw,42px);margin:4px 0 0;letter-spacing:-.03em}
.section-head p{max-width:450px;color:var(--muted)}
.tool-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
.tool-card{display:block;background:var(--surface);border:1px solid var(--border);border-radius:18px;padding:20px;box-shadow:var(--shadow);transition:.18s ease}
.tool-card:hover{transform:translateY(-3px)}
.tool-card h3{margin:16px 0 6px}
.tool-card p{margin:0;color:var(--muted)}
.tool-icon{display:grid;place-items:center;width:48px;height:48px;border-radius:14px;background:var(--surface-2);font-weight:900}
.info-panel{background:var(--surface);border:1px solid var(--border);border-radius:22px;padding:30px;box-shadow:var(--shadow)}
.info-panel p{color:var(--muted);max-width:760px}
footer{max-width:1180px;margin:20px auto 0;padding:30px 18px 46px;display:flex;justify-content:space-between;color:var(--muted);border-top:1px solid var(--border)}
.tool-page{max-width:980px;margin:auto;padding:48px 18px 80px}
.tool-page .back{display:inline-flex;margin-bottom:22px;color:var(--muted)}
.tool-page h1{font-size:clamp(34px,6vw,56px);letter-spacing:-.04em;margin:.1em 0}
.tool-page .lead{color:var(--muted);font-size:18px;max-width:720px}
.panel{background:var(--surface);border:1px solid var(--border);border-radius:18px;padding:20px;box-shadow:var(--shadow);margin-top:24px}
.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.field{display:flex;flex-direction:column;gap:7px;margin-bottom:14px}
.field label{font-weight:700}
.field input,.field textarea,.field select{width:100%;background:var(--bg);color:var(--text);border:1px solid var(--border);border-radius:12px;padding:12px}
.field textarea{min-height:120px;resize:vertical}
.actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:14px}
.result-box{margin-top:18px;padding:18px;border-radius:14px;background:var(--surface-2);border:1px solid var(--border)}
.kpis{display:grid;grid-template-columns:repeat(4,1fr);gap:10px}
.kpi{background:var(--surface-2);border-radius:14px;padding:14px}
.kpi strong{display:block;font-size:24px}
.preview-paper{background:#fff;color:#111;padding:34px;border-radius:10px;min-height:500px}
.preview-paper h2,.preview-paper h3{color:#111}
.preview-paper .muted{color:#666}
.row{display:flex;gap:10px;align-items:center}
.row > *{flex:1}
.small{font-size:13px;color:var(--muted)}
.canvas-wrap{display:flex;justify-content:center;align-items:center;min-height:240px;background:var(--surface-2);border-radius:14px;padding:16px}
canvas{max-width:100%;height:auto}
@media(max-width:820px){.tool-grid{grid-template-columns:repeat(2,1fr)}.section-head{display:block}.grid-2{grid-template-columns:1fr}.kpis{grid-template-columns:repeat(2,1fr)}}
@media(max-width:560px){.hero{padding-top:54px}.tool-grid{grid-template-columns:1fr}.topbar{padding:12px 14px}.section,.tool-page{padding-left:14px;padding-right:14px}footer{padding-left:14px;padding-right:14px;display:block}.hero-actions a{width:100%;text-align:center}}
@media print{
  .topbar,.back,.no-print,.actions,footer{display:none!important}
  body{background:#fff}
  .tool-page{padding:0;max-width:none}
  .panel{border:0;box-shadow:none;padding:0;margin:0}
  .preview-paper{box-shadow:none;border:0}
}
.premium-pill{display:inline-flex;align-items:center;gap:7px;padding:7px 11px;border-radius:999px;background:var(--surface-2);border:1px solid var(--border);font-size:13px;font-weight:800}
.premium-pill::before{content:"★"}
.premium-card{position:relative;overflow:hidden}
.premium-card::after{content:"PREMIUM";position:absolute;right:14px;top:14px;font-size:10px;font-weight:900;letter-spacing:.08em;padding:5px 8px;border-radius:999px;background:var(--accent);color:var(--accent-text)}
.pricing-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-top:24px}
.price-card{background:var(--surface);border:1px solid var(--border);border-radius:22px;padding:26px;box-shadow:var(--shadow)}
.price-card.featured{border:2px solid var(--text)}
.price{font-size:48px;font-weight:900;letter-spacing:-.05em;margin:8px 0}
.price small{font-size:15px;color:var(--muted);font-weight:600;letter-spacing:0}
.feature-list{list-style:none;padding:0;margin:20px 0}
.feature-list li{padding:9px 0;border-bottom:1px solid var(--border)}
.feature-list li::before{content:"✓";font-weight:900;margin-right:9px}
.notice{padding:15px 17px;border:1px solid var(--border);background:var(--surface-2);border-radius:14px;margin:18px 0}
.template-tabs{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:14px}
.template-btn{padding:8px 11px;border:1px solid var(--border);background:var(--surface);color:var(--text);border-radius:10px;cursor:pointer}
.template-btn.active{background:var(--accent);color:var(--accent-text)}
@media(max-width:700px){.pricing-grid{grid-template-columns:1fr}.price{font-size:40px}}