/* ThrillSEO free tools — shared styles (design system matches /calc/ calculators) */
*{box-sizing:border-box;margin:0;padding:0}
:root{
  --black:#0a0a08;
  --white:#f5f2ec;
  --accent:#c8f060;
  --accent-dark:#8fb820;
  --mid:#2a2a25;
  --muted:#6b6b60;
  --border:#2a2a25;
  --card:#141410;
  --highlight:#1e1e18;
  --pass:#c8f060;
  --warn:#f0c860;
  --fail:#f07860;
}
html{font-size:16px;scroll-behavior:smooth}
body{background:var(--black);color:var(--white);font-family:'Syne',sans-serif;min-height:100vh;padding:0}

/* HEADER */
header{border-bottom:1px solid var(--border);padding:20px 40px;display:flex;align-items:center;justify-content:space-between}
.logo{font-family:'DM Serif Display',serif;font-size:18px;letter-spacing:-.02em;color:var(--white)}
.logo span{color:var(--accent)}
.tagline{font-size:11px;color:var(--muted);letter-spacing:.12em;text-transform:uppercase}

/* HERO */
.hero{padding:64px 40px 48px;max-width:820px;margin:0 auto}
.hero-label{font-size:10px;letter-spacing:.2em;text-transform:uppercase;color:var(--accent);font-family:'DM Mono',monospace;margin-bottom:20px;display:flex;align-items:center;gap:8px}
.hero-label::before{content:'';width:24px;height:1px;background:var(--accent)}
h1{font-family:'DM Serif Display',serif;font-size:clamp(36px,5vw,60px);line-height:1.05;letter-spacing:-.03em;margin-bottom:16px;color:var(--white)}
h1 em{font-style:italic;color:var(--accent)}
.hero-sub{font-size:15px;color:var(--muted);line-height:1.65;max-width:560px;font-family:'Syne',sans-serif;font-weight:400}

/* LAYOUT */
.main{max-width:820px;margin:0 auto;padding:0 40px 80px}
.section-label{font-size:10px;letter-spacing:.18em;text-transform:uppercase;color:var(--muted);font-family:'DM Mono',monospace;margin-bottom:16px;padding-bottom:10px;border-bottom:1px solid var(--border)}
.section-label.spaced{margin-top:48px}

/* INPUTS */
.input-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-bottom:40px}
.input-block{display:flex;flex-direction:column;gap:6px}
.input-block.full{grid-column:1/-1}
label{font-size:11px;letter-spacing:.1em;text-transform:uppercase;color:var(--muted);font-family:'DM Mono',monospace}
.input-wrap{position:relative}
.prefix{position:absolute;left:14px;top:50%;transform:translateY(-50%);color:var(--muted);font-family:'DM Mono',monospace;font-size:14px;pointer-events:none}
input[type=number],input[type=text],input[type=url],input[type=date],select,textarea{width:100%;background:var(--card);border:1px solid var(--border);color:var(--white);font-family:'DM Mono',monospace;font-size:14px;padding:13px 14px;border-radius:4px;outline:none;-moz-appearance:textfield;transition:border-color .2s}
textarea{min-height:180px;resize:vertical;line-height:1.6}
textarea.tall{min-height:260px}
input[type=number]::-webkit-inner-spin-button{-webkit-appearance:none}
input.has-prefix{padding-left:28px}
input:focus,select:focus,textarea:focus{border-color:var(--accent)}
select{appearance:none;cursor:pointer;background-image:url("data:image/svg+xml,%3Csvg width='10' height='6' viewBox='0 0 10 6' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M1 1L5 5L9 1' stroke='%236b6b60' stroke-width='1.5' stroke-linecap='round'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 14px center}
.hint{font-size:11px;color:var(--muted);line-height:1.5;font-family:'DM Mono',monospace}

/* SLIDER */
.slider-block{grid-column:1/-1;display:flex;flex-direction:column;gap:8px}
.slider-row{display:flex;align-items:center;gap:12px}
input[type=range]{flex:1;-webkit-appearance:none;appearance:none;height:2px;background:var(--border);border-radius:1px;outline:none;cursor:pointer}
input[type=range]::-webkit-slider-thumb{-webkit-appearance:none;width:16px;height:16px;background:var(--accent);border-radius:50%;cursor:pointer;transition:transform .15s}
input[type=range]::-webkit-slider-thumb:hover{transform:scale(1.2)}
.slider-val{font-family:'DM Mono',monospace;font-size:13px;color:var(--accent);min-width:40px;text-align:right}
.slider-labels{display:flex;justify-content:space-between;font-size:10px;color:var(--muted);font-family:'DM Mono',monospace}

/* BUTTONS */
.calc-btn{width:100%;padding:16px;background:var(--accent);color:var(--black);font-family:'Syne',sans-serif;font-size:14px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;border:none;border-radius:4px;cursor:pointer;transition:opacity .2s,transform .1s;margin-bottom:40px}
.calc-btn:hover{opacity:.9;transform:translateY(-1px)}
.calc-btn:active{transform:scale(.99)}
.ghost-btn{display:inline-block;padding:10px 18px;background:transparent;border:1px solid var(--border);color:var(--white);font-family:'DM Mono',monospace;font-size:12px;border-radius:4px;cursor:pointer;transition:border-color .2s;text-decoration:none}
.ghost-btn:hover{border-color:var(--accent);color:var(--accent)}
.btn-row{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:32px}

/* RESULTS */
.results{display:none}
.results.visible{display:block}
.result-hero{background:var(--highlight);border:1px solid var(--border);border-radius:6px;padding:32px;margin-bottom:16px;position:relative;overflow:hidden}
.result-hero::before{content:'';position:absolute;top:0;right:0;width:200px;height:200px;background:radial-gradient(circle at 100% 0%, rgba(200,240,96,.06) 0%, transparent 70%)}
.result-hero-label{font-size:10px;letter-spacing:.18em;text-transform:uppercase;color:var(--muted);font-family:'DM Mono',monospace;margin-bottom:10px}
.result-hero-num{font-family:'DM Serif Display',serif;font-size:clamp(42px,7vw,72px);line-height:1;letter-spacing:-.04em;color:var(--accent);margin-bottom:8px}
.result-hero-desc{font-size:13px;color:var(--muted);line-height:1.5}
.result-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-bottom:32px}
.result-card{background:var(--card);border:1px solid var(--border);border-radius:6px;padding:20px}
.result-card-label{font-size:10px;letter-spacing:.14em;text-transform:uppercase;color:var(--muted);font-family:'DM Mono',monospace;margin-bottom:8px}
.result-card-num{font-family:'DM Serif Display',serif;font-size:28px;letter-spacing:-.03em;color:var(--white);margin-bottom:4px}
.result-card-num.accent-num{color:var(--accent)}
.result-card-sub{font-size:11px;color:var(--muted)}

/* TABLES */
.comparison{border:1px solid var(--border);border-radius:6px;overflow:hidden;margin-bottom:32px}
.comparison-header{background:var(--highlight);padding:16px 20px;font-size:10px;letter-spacing:.14em;text-transform:uppercase;color:var(--muted);font-family:'DM Mono',monospace;border-bottom:1px solid var(--border)}
.comparison-row{display:grid;grid-template-columns:1fr 1fr 1fr;padding:14px 20px;border-bottom:1px solid var(--border);font-size:13px;align-items:center;gap:10px}
.comparison-row.cols2{grid-template-columns:1.4fr 1fr}
.comparison-row.cols4{grid-template-columns:1.2fr 1fr 1fr 1fr}
.comparison-row:last-child{border-bottom:none}
.comparison-row.head{font-size:10px;letter-spacing:.1em;text-transform:uppercase;color:var(--muted);font-family:'DM Mono',monospace;background:var(--highlight)}
.comparison-row.highlight-row{background:rgba(200,240,96,.04)}
.c-label{color:var(--muted);overflow-wrap:anywhere}
.c-seo{color:var(--accent);font-family:'DM Mono',monospace;font-weight:500}
.c-ads{color:var(--muted);font-family:'DM Mono',monospace}
.c-white{color:var(--white)}

/* CHECKLIST (audit rows) */
.check-row{display:grid;grid-template-columns:26px 1fr;gap:12px;padding:14px 20px;border-bottom:1px solid var(--border);font-size:13px;align-items:start}
.check-row:last-child{border-bottom:none}
.check-ico{font-family:'DM Mono',monospace;font-size:13px;line-height:1.5;text-align:center;border-radius:50%}
.check-row.pass .check-ico{color:var(--pass)}
.check-row.warn .check-ico{color:var(--warn)}
.check-row.fail .check-ico{color:var(--fail)}
.check-title{color:var(--white);margin-bottom:2px}
.check-note{color:var(--muted);font-size:12px;line-height:1.55}

/* CHART */
.curve-wrap{margin-bottom:32px}
.chart-container{position:relative;height:220px}
canvas.chart{border-radius:6px;background:var(--card);border:1px solid var(--border);width:100%;height:100%}

/* CODE OUTPUT */
.code-out{background:var(--card);border:1px solid var(--border);border-radius:6px;padding:20px;font-family:'DM Mono',monospace;font-size:12.5px;line-height:1.7;color:var(--white);white-space:pre-wrap;overflow-wrap:anywhere;margin-bottom:16px;max-height:480px;overflow-y:auto}

/* SERP PREVIEW */
.serp-card{background:#fff;border-radius:8px;padding:22px 24px;margin-bottom:16px}
.serp-card.mobile{max-width:400px}
.serp-crumb{display:flex;align-items:center;gap:10px;margin-bottom:6px}
.serp-fav{width:26px;height:26px;border-radius:50%;background:#f1f3f4;display:flex;align-items:center;justify-content:center;font-size:12px}
.serp-site{font-family:Arial,sans-serif;font-size:14px;color:#202124;line-height:1.3}
.serp-url{font-family:Arial,sans-serif;font-size:12px;color:#4d5156}
.serp-title{font-family:Arial,sans-serif;font-size:20px;line-height:1.3;color:#1a0dab;margin-bottom:4px;cursor:pointer;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.serp-card.mobile .serp-title{white-space:normal;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical}
.serp-desc{font-family:Arial,sans-serif;font-size:14px;line-height:1.58;color:#4d5156;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.serp-card.mobile .serp-desc{-webkit-line-clamp:3}
.pixel-bar{height:6px;background:var(--card);border:1px solid var(--border);border-radius:3px;overflow:hidden;margin:6px 0 2px}
.pixel-fill{height:100%;background:var(--accent);transition:width .2s,background .2s}
.pixel-fill.over{background:var(--fail)}

/* CTA */
.cta-box{border:1px solid var(--accent);border-radius:6px;padding:32px;text-align:center;background:rgba(200,240,96,.03)}
.cta-box h3{font-family:'DM Serif Display',serif;font-size:26px;letter-spacing:-.02em;margin-bottom:10px}
.cta-box p{font-size:14px;color:var(--muted);line-height:1.6;margin-bottom:24px}
.cta-link{display:inline-block;background:var(--accent);color:var(--black);font-family:'Syne',sans-serif;font-weight:700;font-size:13px;letter-spacing:.08em;text-transform:uppercase;padding:14px 32px;border-radius:4px;text-decoration:none;transition:opacity .2s}
.cta-link:hover{opacity:.85}
.cta-secondary{font-size:12px;color:var(--muted);margin-top:14px}
.cta-secondary a{color:var(--accent);text-decoration:none}

/* HUB GRID */
.calc-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-bottom:48px}
.calc-card{background:var(--card);border:1px solid var(--border);border-radius:6px;padding:24px;text-decoration:none;display:block;transition:border-color .2s,transform .15s}
.calc-card:hover{border-color:var(--accent);transform:translateY(-2px)}
.calc-card h3{font-family:'DM Serif Display',serif;font-size:20px;color:var(--white);letter-spacing:-.02em;margin-bottom:8px}
.calc-card p{font-size:12px;color:var(--muted);line-height:1.6}
.calc-card .go{font-size:11px;color:var(--accent);font-family:'DM Mono',monospace;margin-top:14px;display:inline-block}

/* DISCLAIMER + FOOTER */
.disclaimer{font-size:11px;color:var(--muted);text-align:center;margin-top:32px;line-height:1.6;font-family:'DM Mono',monospace}
.disclaimer a{color:inherit}
footer{border-top:1px solid var(--border);padding:20px 40px;display:flex;justify-content:space-between;align-items:center;font-size:11px;color:var(--muted);font-family:'DM Mono',monospace;gap:12px;flex-wrap:wrap}
footer a{color:var(--muted);text-decoration:none}
footer a:hover{color:var(--accent)}

@media(max-width:600px){
  header,footer{padding:16px 20px}
  .hero,.main{padding-left:20px;padding-right:20px}
  .hero{padding-top:40px;padding-bottom:32px}
  .input-grid,.result-grid,.calc-grid{grid-template-columns:1fr}
  .comparison-row{font-size:11px}
}