:root{
  --bg:#ffffff;--surface:#f2f4f6;--surface-2:#e5e8eb;--line:#e5e8eb;
  --text:#191f28;--text-2:#4e5968;--muted:#8b95a1;
  --blue:#3182f6;--blue-press:#1b64da;--blue-soft:#e8f3ff;
  --green:#00b06f;--green-soft:#e6f7f0;
  --yellow:#f5a623;--yellow-soft:#fff5e0;
  --orange:#ff7a00;--orange-soft:#fff0e2;
  --red:#f04452;--red-soft:#fdecee;
  --r-input:14px;--r-sheet:24px;--r-card:20px;
  --font:"Pretendard Variable",Pretendard,-apple-system,BlinkMacSystemFont,system-ui,"Apple SD Gothic Neo",Roboto,sans-serif;
}
@media (prefers-color-scheme:dark){:root{
  --bg:#17171c;--surface:#202027;--surface-2:#2c2c35;--line:#2c2c35;
  --text:#e5e8eb;--text-2:#b0b8c1;--muted:#8b95a1;
  --blue:#4593fc;--blue-press:#3182f6;--blue-soft:#1b2a44;
  --green:#2ed48c;--green-soft:#16302a;--yellow:#ffc14d;--yellow-soft:#3a2f18;
  --orange:#ff9640;--orange-soft:#3d2a18;--red:#ff6b76;--red-soft:#3d1f24;
}}
*{box-sizing:border-box}
html{font-family:var(--font);font-size:17px;line-height:1.6;background:var(--bg);color:var(--text);-webkit-text-size-adjust:100%;font-feature-settings:"tnum"}
body{margin:0}
a{color:var(--blue);text-decoration:none}a:hover{color:var(--blue-press)}
:focus-visible{outline:3px solid var(--blue);outline-offset:2px;border-radius:6px}
main{max-width:720px;margin:0 auto;padding:8px 20px 72px}
h1{font-size:1.85rem;line-height:1.25;letter-spacing:-.02em;font-weight:700;margin:1.2em 0 .5em}
h2{font-size:1.3rem;line-height:1.3;letter-spacing:-.01em;font-weight:700;margin:2.4em 0 .7em}
h3{font-size:1.05rem;font-weight:700;margin:1.4em 0 .5em}
p{margin:.6em 0}
.muted{color:var(--muted)}.small{font-size:.9rem}
.prose{max-width:62ch}.prose p{margin:.8em 0;color:var(--text-2)}.prose strong{color:var(--text)}
code{font-family:inherit;background:var(--surface);padding:2px 8px;border-radius:8px;font-size:.95em}

/* header / footer */
header.top{display:flex;align-items:center;justify-content:space-between;gap:16px;max-width:720px;margin:0 auto;padding:18px 20px}
.brand{font-weight:800;font-size:1.15rem;letter-spacing:-.02em;color:var(--text)}
header nav{display:flex;gap:6px;flex-wrap:wrap}
header nav a{color:var(--text-2);font-size:.92rem;padding:6px 10px;border-radius:10px}
header nav a:hover{background:var(--surface);color:var(--text)}
@media(max-width:560px){header.top{flex-direction:column;align-items:flex-start;gap:8px}header nav a{padding:4px 8px}}
footer{max-width:720px;margin:0 auto;padding:32px 20px 48px;color:var(--muted);font-size:.9rem;border-top:1px solid var(--line)}
footer a{color:var(--text-2)}
.crumbs{color:var(--muted);font-size:.9rem;margin-top:16px}.crumbs a{color:var(--muted)}

/* hero */
.hero h1{font-size:2.2rem;margin-top:.9em}
.hero p{color:var(--text-2);max-width:56ch;font-size:1.05rem}
@media(max-width:560px){.hero h1{font-size:1.75rem}}

/* calculator */
.card{background:var(--surface);border-radius:var(--r-card);padding:20px}
.calc .row{display:grid;grid-template-columns:1fr 1fr;gap:12px}
@media(max-width:560px){.calc .row{grid-template-columns:1fr}}
.calc label{display:flex;flex-direction:column;gap:6px;font-size:.9rem;color:var(--text-2);font-weight:600}
.calc select{appearance:none;-webkit-appearance:none;width:100%;padding:14px 40px 14px 16px;border-radius:var(--r-input);border:1px solid transparent;background:var(--bg) url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 16 16'><path d='M4 6l4 4 4-4' fill='none' stroke='%238b95a1' stroke-width='1.8' stroke-linecap='round'/></svg>") no-repeat right 14px center;color:var(--text);font:inherit;font-size:1rem;font-weight:600}
.calc select:focus{border-color:var(--blue);outline:none}
.seg{display:inline-flex;background:var(--surface-2);padding:4px;border-radius:14px;margin-top:14px}
.seg label{position:relative}
.seg input{position:absolute;opacity:0;inset:0;margin:0}
.seg span{display:block;padding:8px 18px;border-radius:11px;font-size:.95rem;font-weight:600;color:var(--text-2);cursor:pointer;transition:background .15s,color .15s}
.seg input:checked+span{background:var(--bg);color:var(--text);box-shadow:0 1px 3px rgba(0,0,0,.08)}
.seg input:focus-visible+span{outline:3px solid var(--blue)}
.result{margin-top:16px;min-height:1em}

/* verdict sheet — the one loud element */
.sheet{background:var(--blue-soft);border-radius:var(--r-sheet);padding:28px 24px 22px;margin:18px 0 8px}
.sheet.mild,.sheet.gpu-bound{background:var(--yellow-soft)}
.sheet.moderate,.sheet.overkill{background:var(--orange-soft)}
.sheet.severe{background:var(--red-soft)}
.sheet.balanced{background:var(--green-soft)}
.sheet-num{display:flex;align-items:baseline;gap:4px;line-height:1}
.sheet-num .num{font-size:4.5rem;font-weight:800;letter-spacing:-.04em}
.sheet-num .pct{font-size:1.6rem;font-weight:700;color:var(--text-2)}
.sheet-title{font-size:1.15rem;font-weight:700;margin:.6em 0 .2em}
.sheet-text{color:var(--text-2);margin:.4em 0 0;max-width:56ch}
.sheet-text a{font-weight:600}
.beam{display:grid;grid-template-columns:auto 1fr auto;align-items:center;gap:12px;margin:18px 0 6px}
.beam-label{font-size:.85rem;font-weight:700;color:var(--text-2)}
.beam-track{position:relative;height:6px;border-radius:3px;background:rgba(0,0,0,.08)}
@media(prefers-color-scheme:dark){.beam-track{background:rgba(255,255,255,.12)}}
.beam-track::before{content:"";position:absolute;left:50%;top:-5px;width:2px;height:16px;background:var(--muted);transform:translateX(-1px);border-radius:1px}
.beam-dot{position:absolute;top:50%;width:18px;height:18px;border-radius:50%;background:var(--text);transform:translate(-50%,-50%);box-shadow:0 0 0 4px var(--bg);transition:left .5s cubic-bezier(.2,.8,.2,1)}
@media(prefers-reduced-motion:reduce){.beam-dot,.seg span{transition:none}}

/* tables */
.tbl{width:100%;border-collapse:collapse;margin:.4em 0;font-size:.95rem}
.tbl th,.tbl td{padding:12px 10px;border-bottom:1px solid var(--line);text-align:left;vertical-align:middle}
.tbl th{color:var(--muted);font-weight:600;font-size:.85rem}
.tbl tr:last-child td{border-bottom:none}
.tbl.spec{background:var(--surface);border-radius:var(--r-card);overflow:hidden}
.tbl.spec th{width:48%;color:var(--text-2)}
.tbl.spec th,.tbl.spec td{border-bottom:1px solid var(--bg)}
.tbl caption{text-align:left;font-weight:700;padding:0 0 10px;font-size:1rem}
.bar{display:inline-block;width:72px;height:6px;background:var(--surface-2);border-radius:3px;vertical-align:middle;margin-right:8px;overflow:hidden}
.bar span{display:block;height:100%;background:var(--blue);border-radius:3px}
.v-balanced{color:var(--green);font-weight:600}.v-mild,.v-gpu-bound{color:var(--yellow);font-weight:600}
.v-moderate,.v-overkill{color:var(--orange);font-weight:600}.v-severe{color:var(--red);font-weight:600}

/* lists, grids */
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:20px 32px}
@media(max-width:600px){.grid2{grid-template-columns:1fr}}
.cols{columns:2;column-gap:24px;padding:0;margin:.4em 0;list-style:none}
.cols li,.best li{padding:7px 0;border-bottom:1px solid var(--line)}
.best{padding:0;list-style:none}
ul{padding-left:1.1em}
.grid2 ul{padding-left:0;list-style:none}.grid2 ul li{padding:7px 0;border-bottom:1px solid var(--line)}

/* ads: reserved, quiet */
.ad-slot{margin:28px 0}
.ad-slot:empty{display:none}