:root{--md-sys-color-primary:#10b77f;--md-sys-color-on-primary:#f5fffc;--md-sys-color-primary-container:#064631;--md-sys-color-on-primary-container:#b9f9e3;--md-sys-color-secondary:#45a1a1;--md-sys-color-on-secondary:#f5ffff;--md-sys-color-surface:#111715;--md-sys-color-surface-variant:#222a28;--md-sys-color-on-surface:#e0ebe7;--md-sys-color-on-surface-variant:#b9c6c1;--md-sys-color-outline:#616b68;--md-sys-color-inverse-surface:#f0f5f3;--md-sys-color-inverse-on-surface:#161d1b;--duration-short:.2s;--duration-medium:.4s;--duration-long:.7s;--space-unit:8px}*{box-sizing:border-box;-webkit-tap-highlight-color:transparent;margin:0;padding:0}body{background-color:var(--md-sys-color-surface);color:var(--md-sys-color-on-surface);scroll-behavior:smooth;font-family:Inter,Noto Sans KR,system-ui,-apple-system,sans-serif;line-height:1.5;overflow-x:hidden}h1{letter-spacing:-.02em;font-size:clamp(2.5rem,8vw,5rem);font-weight:800;line-height:1.1}h2{color:var(--md-sys-color-primary);margin-bottom:2rem;font-size:clamp(1.75rem,5vw,3rem);font-weight:700}h3{margin-bottom:1rem;font-size:1.5rem;font-weight:600}p{color:var(--md-sys-color-on-surface-variant);max-width:600px;font-size:1.1rem}.container{max-width:1200px;margin:0 auto;padding:0 2rem}section{opacity:0;min-height:100vh;transition:all var(--duration-long) cubic-bezier(.2, 0, 0, 1);flex-direction:column;justify-content:center;padding:80px 0;display:flex;transform:translateY(30px)}section.visible{opacity:1;transform:translateY(0)}.glass{-webkit-backdrop-filter:blur(20px);background:#121615b3;border:1px solid #ffffff0d}.chip{background:var(--md-sys-color-surface-variant);color:var(--md-sys-color-on-surface);border:1px solid var(--md-sys-color-outline);transition:all var(--duration-short);cursor:default;border-radius:8px;align-items:center;padding:8px 16px;font-size:.9rem;font-weight:500;display:inline-flex}.chip:hover{background:var(--md-sys-color-primary-container);color:var(--md-sys-color-on-primary-container);border-color:var(--md-sys-color-primary)}.btn{cursor:pointer;border:none;border-radius:32px;align-items:center;padding:12px 32px;font-weight:600;text-decoration:none;transition:all .3s cubic-bezier(.2,0,0,1);display:inline-flex}.btn-primary{background:var(--md-sys-color-primary);color:var(--md-sys-color-on-primary)}.btn-primary:hover{filter:brightness(1.1);transform:translateY(-2px);box-shadow:0 8px 20px #10b77f4d}nav{z-index:1000;height:72px;transition:transform var(--duration-medium);justify-content:space-between;align-items:center;padding:0 2rem;display:flex;position:fixed;top:0;left:0;right:0}nav.hidden{transform:translateY(-100%)}.nav-links{gap:2rem;display:flex}.nav-links a{color:var(--md-sys-color-on-surface-variant);transition:color var(--duration-short);font-weight:500;text-decoration:none}.nav-links a:hover{color:var(--md-sys-color-primary)}.hero-glow{filter:blur(80px);z-index:-1;pointer-events:none;background:radial-gradient(circle,#10b77f26 0%,#0000 70%);width:60vw;height:60vw;position:absolute;top:-20%;right:-10%}.project-grid{grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:2rem;margin-top:3rem;display:grid}.project-card{background:var(--md-sys-color-surface-variant);border:1px solid #ffffff0d;border-radius:24px;padding:24px;transition:transform .4s cubic-bezier(.2,0,0,1),box-shadow .4s}.project-card:hover{background:var(--md-sys-color-primary-container);transform:translateY(-10px)scale(1.02);box-shadow:0 20px 40px #0006}.lang-toggle{background:var(--md-sys-color-surface-variant);border:1px solid var(--md-sys-color-outline);color:var(--md-sys-color-on-surface);cursor:pointer;border-radius:20px;padding:6px 12px;font-size:.85rem;font-weight:600}@keyframes float{0%,to{transform:translateY(0)}50%{transform:translateY(-10px)}}.float{animation:6s ease-in-out infinite float}