/* K-SFTs project page. Original implementation for issue #155. */
:root{color-scheme:light;--navy:#00338d;--blue:#005eb8;--ink:#172c4d;--muted:#50617a;--line:#d7e1ef;--paper:#f7f9fc;--ice:#eaf1fa}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:24px}body{margin:0;background:var(--paper);color:var(--ink);font:16px/1.65 system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}a{color:var(--blue);text-underline-offset:.24em}a:hover{text-decoration-thickness:2px}a:focus-visible{outline:3px solid #0077c8;outline-offset:5px}.wrap{width:min(1200px,90%);margin-inline:auto}.skip{position:absolute;top:-100px;left:16px;z-index:10;background:#fff;padding:12px}.skip:focus{top:12px}header{background:#fff;border-bottom:1px solid var(--line)}nav{display:flex;justify-content:space-between;align-items:center;gap:24px;min-height:88px}.brand{display:flex;align-items:center;gap:12px;font-size:1.25rem;font-weight:800;text-decoration:none;color:var(--navy);white-space:nowrap}.brand span{display:grid;place-items:center;width:36px;height:36px;background:var(--navy);color:#fff;border-radius:6px;border-bottom:3px solid #5ac8ff}.nav-links{display:flex;flex-wrap:wrap;gap:12px 25px;font-size:.88rem}.nav-links a{color:var(--ink);text-decoration:none}.nav-links a:hover{text-decoration:underline}section{padding-block:72px}.hero{background:linear-gradient(115deg,#001b51,#00338d 75%,#354492);color:white;padding-bottom:0}.hero-grid{display:grid;grid-template-columns:1.05fr 1fr;gap:52px;align-items:center}.eyebrow{margin:0 0 16px;font-size:.72rem;font-weight:750;letter-spacing:.15em;text-transform:uppercase;color:var(--blue)}.hero .eyebrow,.closing .eyebrow{color:#a4ddff}h1{font-size:clamp(2.7rem,4.7vw,4.3rem);line-height:1.08;letter-spacing:-.05em;margin:0 0 24px}h1 em{font-style:normal;color:#9ed9ff}.lead{font-size:1.2rem;max-width:42ch}.hero-copy{color:#d4e7fa;max-width:54ch}.actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}.button{display:inline-block;border:1px solid transparent;border-radius:5px;padding:13px 19px;font-size:.9rem;font-weight:650;text-decoration:none}.primary{color:var(--navy);background:#fff}.primary:hover{background:#e8f4ff}.secondary{color:#fff;border-color:#8cafd9}.hero-art{margin:0;border:1px solid #6896cc;border-radius:10px;overflow:hidden;background:#001b51;box-shadow:0 24px 50px #00123855}.hero-art img{display:block;width:100%;height:auto}.hero-art figcaption{color:#d4e7fa;font-size:.73rem;padding:12px 16px}.principles{display:flex;flex-wrap:wrap;gap:12px 40px;border-top:1px solid #ffffff38;margin-top:52px;padding-block:22px;color:#d4e7fa;font-size:.8rem}.status{margin-top:32px;padding:20px 24px;background:#fff7e6;border-left:4px solid #ac6500;font-size:.95rem}.status strong{display:block;margin-bottom:4px}h2{color:var(--navy);font-size:clamp(1.9rem,3vw,2.65rem);line-height:1.18;letter-spacing:-.04em;margin:0 0 24px}h3{font-size:1.18rem;line-height:1.3;letter-spacing:-.02em}.intro{max-width:85ch;color:var(--muted)}.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:40px;list-style:none;padding:0;margin:36px 0}.steps li{border-top:2px solid var(--blue);padding-top:16px}.number{color:var(--blue);font: .78rem/1.5 ui-monospace,monospace}.steps p,.split p,.cards p{color:var(--muted)}.result-strip{display:flex;align-items:center;flex-wrap:wrap;gap:10px 16px;padding:22px;background:#fff;border:1px solid var(--line);border-radius:6px;font-size:.8rem}.result-strip strong{font-size:1.3rem;color:var(--navy)}.note{font-size:.88rem;border-left:3px solid #483698;padding-left:18px;margin-top:24px;color:var(--muted)}.tint{background:var(--ice);border-block:1px solid var(--line)}.diagram{margin:32px 0;background:#fff;border:1px solid var(--line);border-radius:8px;overflow:hidden}.diagram>a{display:block;padding:20px}.diagram img{display:block;width:100%;height:auto}.diagram figcaption{font-size:.82rem;padding:16px 22px;border-top:1px solid var(--line);color:var(--muted)}.split{display:grid;grid-template-columns:1fr 1fr;gap:72px}pre{white-space:pre-wrap;overflow-wrap:anywhere;background:var(--ice);padding:18px;border-radius:6px;font-size:.85rem}.resources>a{display:block;border-top:1px solid var(--line);padding:16px 0;text-decoration:none}.resources strong,.resources span{display:block}.resources span{font-size:.9rem;color:var(--muted);margin-top:4px}.resources a:hover strong{text-decoration:underline}.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}.cards article{background:#fff;border:1px solid var(--line);border-top:4px solid var(--blue);padding:26px;border-radius:7px}.cards article:nth-child(2){border-top-color:#0091da}.cards article:nth-child(3){border-top-color:#483698}.cards a{display:block;font-size:.86rem;margin-top:14px}.closing{background:var(--navy);color:#fff}.closing>.wrap{display:flex;justify-content:space-between;align-items:center;gap:36px}.closing h2{color:#fff;margin:0;max-width:23ch}.closing .button{flex-shrink:0}footer{background:#001b51;color:#ccdaf0;padding-block:28px;font-size:.8rem}footer p{margin:0 0 8px}footer a{color:#fff}.hero a:focus-visible,.closing a:focus-visible,footer a:focus-visible{outline-color:#9ed9ff}
@media(max-width:1000px){nav{align-items:flex-start;flex-direction:column;padding-block:20px;gap:16px}.hero-grid{grid-template-columns:1fr;gap:36px}.hero-art{max-width:760px}.hero{padding-top:48px}.split{gap:36px}.cards{grid-template-columns:1fr}.cards article{padding:24px}}
@media(max-width:680px){section{padding-block:48px}.steps,.split{grid-template-columns:1fr;gap:24px}.nav-links{gap:10px 18px}.principles{gap:8px 22px;margin-top:36px}.hero-art figcaption{font-size:.7rem}.closing>.wrap{display:block}.closing .button{margin-top:24px}.diagram>a{padding:8px}.diagram figcaption{padding:14px}.status{padding:18px}.result-strip{gap:10px}.result-strip>span:first-child{flex-basis:100%}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}