:root{--bg: #0b0f17;--bg-soft: #0e1420;--surface: #141b2b;--surface-2: #1a2335;--border: #242e44;--text: #e7ecf6;--muted: #97a3bd;--accent: #4f9dff;--accent-2: #7c5cff;--radius: 14px;--container: 1080px;--font: -apple-system, BlinkMacSystemFont, "Segoe UI", "Apple SD Gothic Neo", "Malgun Gothic", "Noto Sans KR", Roboto, sans-serif}*,*:before,*:after{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:80px}body{margin:0;font-family:var(--font);background:var(--bg);color:var(--text);line-height:1.65;-webkit-font-smoothing:antialiased}a{color:inherit;text-decoration:none}h1,h2,h3,h4{line-height:1.25;margin:0 0 .5em;letter-spacing:-.01em}p{margin:0 0 1em}.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}.btn{display:inline-flex;align-items:center;gap:8px;padding:12px 22px;border-radius:999px;font-weight:600;font-size:.95rem;background:linear-gradient(135deg,var(--accent),var(--accent-2));color:#fff;border:1px solid transparent;transition:transform .15s ease,box-shadow .15s ease;box-shadow:0 8px 24px -10px #4f9dff99}.btn:hover{transform:translateY(-2px);box-shadow:0 12px 30px -10px #4f9dffb3}.btn-ghost{background:transparent;border-color:var(--border);color:var(--text);box-shadow:none}.btn-ghost:hover{border-color:var(--accent);box-shadow:none}.btn-sm{padding:8px 16px;font-size:.85rem}.site-header{position:sticky;top:0;z-index:50;backdrop-filter:blur(12px);background:#0b0f17b8;border-bottom:1px solid var(--border)}.header-inner{display:flex;align-items:center;justify-content:space-between;height:64px}.brand{font-weight:800;font-size:1.15rem;letter-spacing:-.02em}.brand-dot{color:var(--accent)}.nav{display:flex;align-items:center;gap:22px}.nav a{color:var(--muted);font-size:.92rem;font-weight:500;transition:color .15s ease}.nav a:hover{color:var(--text)}.nav .btn{color:#fff}.hero{position:relative;padding:96px 0 72px;overflow:hidden}.hero:before{content:"";position:absolute;inset:-20% 20% auto -10%;height:480px;background:radial-gradient(600px 380px at 30% 20%,rgba(79,157,255,.22),transparent 70%);pointer-events:none}.eyebrow{color:var(--accent);font-weight:600;font-size:.9rem;letter-spacing:.04em;text-transform:uppercase;margin-bottom:14px}.hero-title{font-size:clamp(2rem,5vw,3.2rem);font-weight:800;max-width:18ch;background:linear-gradient(180deg,#fff,#c7d2e8);-webkit-background-clip:text;background-clip:text;color:transparent}.hero-intro{color:var(--muted);font-size:1.1rem;max-width:60ch;margin-top:18px}.hero-cta{display:flex;gap:12px;flex-wrap:wrap;margin:28px 0 20px}.hero-links{display:flex;gap:18px;list-style:none;padding:0;margin:0}.hero-links a{color:var(--muted);font-size:.92rem;border-bottom:1px solid transparent;transition:color .15s ease,border-color .15s ease}.hero-links a:hover{color:var(--text);border-color:var(--accent)}.section{padding:72px 0}.section-alt{background:var(--bg-soft);border-top:1px solid var(--border);border-bottom:1px solid var(--border)}.section-title{font-size:clamp(1.5rem,3vw,2rem);font-weight:700}.section-sub{color:var(--muted);margin-top:-4px;margin-bottom:36px}.grid{display:grid;gap:20px}.grid-1{grid-template-columns:1fr}.grid-2{grid-template-columns:repeat(2,1fr)}.grid-3{grid-template-columns:repeat(3,1fr)}.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:26px;transition:border-color .2s ease,transform .2s ease}.card:hover{border-color:var(--accent);transform:translateY(-3px)}.service-card h3{font-size:1.15rem}.service-card p{color:var(--muted);margin:0}.project-head{display:flex;align-items:baseline;justify-content:space-between;gap:12px;flex-wrap:wrap}.project-card h3{font-size:1.3rem}.period{color:var(--muted);font-size:.85rem;white-space:nowrap}.role{color:var(--accent);font-weight:600;font-size:.92rem;margin:0 0 12px}.summary{color:var(--text)}.highlights{margin:0 0 18px;padding-left:18px;color:var(--muted)}.highlights li{margin-bottom:8px}.stack{display:flex;flex-wrap:wrap;gap:8px;list-style:none;padding:0;margin:0}.stack li{font-size:.78rem;color:var(--muted);background:var(--surface-2);border:1px solid var(--border);border-radius:999px;padding:4px 11px}.project-link{display:inline-block;margin-top:16px;color:var(--accent);font-weight:600}.confidential{margin-top:16px;color:var(--muted);font-size:.85rem;font-style:italic}.product-head{display:flex;align-items:center;justify-content:space-between;gap:10px}.status{font-size:.72rem;color:#9ff5c6;background:#36d3991f;border:1px solid rgba(54,211,153,.3);border-radius:999px;padding:3px 10px;white-space:nowrap}.product-card p{color:var(--muted)}.about{display:grid;grid-template-columns:1.1fr 1fr;gap:40px}.about-text p{color:var(--muted)}.about-skills{display:grid;grid-template-columns:1fr 1fr;gap:22px}.skill-group h4{font-size:.95rem;margin-bottom:12px;color:var(--text)}.site-footer{padding:72px 0;text-align:center}.site-footer h2{font-size:clamp(1.6rem,4vw,2.4rem)}.site-footer p{color:var(--muted)}.footer-links{display:flex;justify-content:center;gap:20px;margin:24px 0}.footer-links a{color:var(--text);font-weight:600;border-bottom:1px solid var(--border);padding-bottom:2px}.footer-links a:hover{border-color:var(--accent)}.copy{font-size:.82rem;margin-top:28px}@media(max-width:880px){.grid-3,.grid-2,.about{grid-template-columns:1fr}}@media(max-width:600px){.nav{gap:14px}.nav a:not(.btn){display:none}.about-skills{grid-template-columns:1fr}}