:root {
  --ink: #f3f7ff;
  --muted: #a8b5c9;
  --dim: #71819a;
  --bg: #08111f;
  --bg-deep: #050b14;
  --surface: #0e1a2b;
  --surface-strong: #13243a;
  --line: rgba(166, 191, 224, .17);
  --blue: #5b8cff;
  --cyan: #5de1e6;
  --max: 1180px;
  --radius: 22px;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--ink);
  background: var(--bg);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { min-width: 320px; margin: 0; background: radial-gradient(circle at 75% 0%, rgba(60, 113, 214, .18), transparent 34rem), var(--bg); color: var(--ink); line-height: 1.65; }
body::before { position: fixed; inset: 0; z-index: -1; opacity: .28; pointer-events: none; content: ""; background-image: linear-gradient(rgba(121, 168, 235, .06) 1px, transparent 1px), linear-gradient(90deg, rgba(121, 168, 235, .06) 1px, transparent 1px); background-size: 42px 42px; mask-image: linear-gradient(to bottom, black, transparent 70%); }
a { color: inherit; }
img, svg { max-width: 100%; }
.container { width: min(calc(100% - 2.5rem), var(--max)); margin-inline: auto; }
.skip-link { position: absolute; left: 1rem; top: -4rem; z-index: 50; padding: .7rem 1rem; border-radius: 10px; background: var(--cyan); color: #06121e; font-weight: 800; }
.skip-link:focus { top: 1rem; }
:focus-visible { outline: 3px solid var(--cyan); outline-offset: 4px; }
.site-header { position: sticky; top: 0; z-index: 20; border-bottom: 1px solid var(--line); background: rgba(8, 17, 31, .86); backdrop-filter: blur(18px); }
.nav { min-height: 76px; display: flex; align-items: center; justify-content: space-between; gap: 1.5rem; }
.brand { display: inline-flex; align-items: center; gap: .8rem; color: var(--ink); font-weight: 800; text-decoration: none; }
.brand-mark { display: grid; width: 38px; height: 38px; place-items: center; border: 1px solid rgba(93, 225, 230, .45); border-radius: 11px; background: linear-gradient(135deg, var(--blue), #243a73); color: white; font-family: ui-monospace, monospace; font-size: .9rem; letter-spacing: -.12em; }
.brand-name { letter-spacing: -.02em; }
.nav-links { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: 1.15rem; }
.nav-links a { color: var(--muted); font-size: .9rem; font-weight: 700; text-decoration: none; }
.nav-links a:hover, .nav-links a:focus-visible { color: var(--cyan); }
main { overflow: hidden; }
.hero { display: grid; min-height: 690px; grid-template-columns: minmax(0, 1fr) minmax(320px, .85fr); align-items: center; gap: 3.5rem; padding: 6.5rem 0 6rem; }
.eyebrow, .kicker { margin: 0 0 1rem; color: var(--cyan); font-family: ui-monospace, SFMono-Regular, Consolas, monospace; font-size: .78rem; font-weight: 800; letter-spacing: .13em; text-transform: uppercase; }
h1, h2, h3 { margin-top: 0; line-height: 1.1; letter-spacing: -.045em; }
h1 { max-width: 760px; margin-bottom: 1.4rem; font-size: clamp(3.5rem, 9vw, 7.8rem); }
h2 { margin-bottom: .9rem; font-size: clamp(2rem, 4vw, 3.4rem); }
h3 { margin-bottom: .6rem; font-size: 1.45rem; }
.gradient-text { background: linear-gradient(110deg, var(--ink), #a5c6ff 62%, var(--cyan)); background-clip: text; -webkit-background-clip: text; color: transparent; }
.hero-copy { max-width: 690px; color: var(--muted); font-size: clamp(1.05rem, 2vw, 1.28rem); }
.hero-copy strong { color: var(--ink); font-weight: 650; }
.actions { display: flex; flex-wrap: wrap; align-items: center; gap: .8rem; margin-top: 2rem; }
.button { display: inline-flex; min-height: 48px; align-items: center; justify-content: center; gap: .5rem; padding: .75rem 1.05rem; border: 1px solid var(--line); border-radius: 12px; background: rgba(255, 255, 255, .03); color: var(--ink); font-weight: 800; text-decoration: none; transition: border-color .2s ease, background .2s ease, transform .2s ease; }
.button:hover, .button:focus-visible { transform: translateY(-2px); border-color: rgba(93, 225, 230, .6); background: rgba(93, 225, 230, .09); }
.button-primary { border-color: transparent; background: linear-gradient(110deg, var(--blue), #4778e9); color: white; box-shadow: 0 12px 30px rgba(53, 105, 218, .25); }
.button-link { min-height: 0; padding: .25rem 0; border: 0; background: transparent; color: var(--cyan); }
.hero-visual { position: relative; }
.hero-visual::after { position: absolute; inset: 15% 12%; z-index: -1; border-radius: 50%; background: rgba(63, 116, 230, .2); filter: blur(70px); content: ""; }
.hero-visual img, .project-visual { width: 100%; border: 1px solid var(--line); border-radius: var(--radius); background: rgba(10, 23, 41, .8); box-shadow: 0 30px 80px rgba(0, 0, 0, .25); }
.section { padding: 5rem 0; }
.section-muted { border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); background: rgba(255, 255, 255, .018); }
.section-heading { display: flex; align-items: end; justify-content: space-between; gap: 2rem; margin-bottom: 2rem; }
.section-heading p, .muted { max-width: 620px; margin: 0; color: var(--muted); }
.profile-layout { display: grid; grid-template-columns: 1.1fr .9fr; gap: 3rem; align-items: start; }
.profile-text { margin: 0; color: var(--muted); font-size: 1.12rem; }
.principles, .project-grid, .skill-grid, .link-grid { display: grid; gap: 1rem; }
.principles { grid-template-columns: repeat(3, 1fr); }
.principle, .project-card, .skill-group, .contact-panel, .legal-card { border: 1px solid var(--line); border-radius: var(--radius); background: linear-gradient(145deg, rgba(21, 38, 62, .82), rgba(11, 24, 42, .72)); }
.principle { padding: 1.25rem; }
.principle-number { display: block; margin-bottom: 1.8rem; color: var(--cyan); font-family: ui-monospace, monospace; font-size: .8rem; }
.principle p { margin: 0; color: var(--muted); font-weight: 700; }
.project-grid { grid-template-columns: repeat(3, 1fr); }
.project-card { display: flex; flex-direction: column; overflow: hidden; }
.project-visual { display: block; border: 0; border-bottom: 1px solid var(--line); border-radius: 0; box-shadow: none; }
.project-body { display: flex; flex: 1; flex-direction: column; padding: 1.4rem; }
.project-category { margin: 0 0 .7rem; color: var(--cyan); font-family: ui-monospace, monospace; font-size: .72rem; font-weight: 800; letter-spacing: .04em; }
.project-body p { color: var(--muted); }
.tech-list { margin: auto 0 0; padding-top: 1rem; color: var(--dim); font-family: ui-monospace, monospace; font-size: .76rem; line-height: 1.8; }
.project-links { display: flex; flex-wrap: wrap; gap: .9rem; margin-top: 1rem; }
.project-links a { color: var(--cyan); font-size: .86rem; font-weight: 800; text-decoration: none; }
.notice { margin-top: 1rem; padding: .8rem .9rem; border-left: 2px solid var(--cyan); background: rgba(93, 225, 230, .06); color: var(--muted); font-size: .84rem; }
.skill-grid { grid-template-columns: repeat(4, 1fr); }
.skill-group { padding: 1.3rem; }
.skill-group h3 { font-size: 1.1rem; }
.skill-group ul { margin: 0; padding: 0; list-style: none; color: var(--muted); font-family: ui-monospace, monospace; font-size: .83rem; line-height: 2; }
.background-panel { max-width: 800px; border-left: 2px solid var(--blue); padding-left: 1.3rem; color: var(--muted); font-size: 1.08rem; }
.link-grid { grid-template-columns: repeat(4, 1fr); }
.link-card { display: flex; min-height: 100px; flex-direction: column; justify-content: space-between; padding: 1.1rem; border: 1px solid var(--line); border-radius: 16px; background: rgba(255, 255, 255, .025); text-decoration: none; }
.link-card:hover, .link-card:focus-visible { border-color: rgba(93, 225, 230, .55); background: rgba(93, 225, 230, .06); }
.link-card span { color: var(--dim); font-size: .8rem; }
.contact-panel { display: flex; align-items: center; justify-content: space-between; gap: 2rem; padding: clamp(1.5rem, 4vw, 3rem); }
.contact-panel p { max-width: 620px; margin: 0; color: var(--muted); }
footer { padding: 2rem 0 3rem; border-top: 1px solid var(--line); color: var(--dim); font-size: .86rem; }
footer a { color: var(--muted); text-decoration: none; } footer a:hover { color: var(--cyan); }
.legal-main { min-height: calc(100vh - 160px); padding: 5.5rem 0; }
.legal-card { max-width: 850px; padding: clamp(1.5rem, 5vw, 3.5rem); }
.legal-card p, .legal-card li { color: var(--muted); } .legal-card h2 { margin-top: 2.5rem; font-size: 1.5rem; } .legal-card address { color: var(--muted); font-style: normal; }
.architecture { display: grid; grid-template-columns: repeat(4, 1fr); gap: .65rem; margin-top: 2rem; }
.architecture-step { padding: 1rem; border: 1px solid var(--line); border-radius: 13px; background: rgba(255, 255, 255, .035); color: var(--muted); font-family: ui-monospace, monospace; font-size: .78rem; }
.architecture-step strong { display: block; margin-bottom: .4rem; color: var(--cyan); font-size: .7rem; }
.detail-hero { padding: 5.5rem 0 3rem; }
.detail-hero .hero-copy { max-width: 820px; }
.detail-card { padding: clamp(1.3rem, 4vw, 2.5rem); border: 1px solid var(--line); border-radius: var(--radius); background: rgba(14, 26, 43, .78); }
.detail-grid { display: grid; grid-template-columns: 1.1fr .9fr; gap: 2rem; }
.detail-card p, .detail-card li { color: var(--muted); }
@media (max-width: 900px) { .hero { grid-template-columns: 1fr; min-height: auto; padding-top: 5rem; } .hero-visual { max-width: 650px; } .profile-layout, .detail-grid { grid-template-columns: 1fr; } .project-grid { grid-template-columns: 1fr; } .skill-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 640px) { .container { width: min(calc(100% - 1.5rem), var(--max)); } .nav { align-items: flex-start; flex-direction: column; padding: .75rem 0; } .nav-links { justify-content: flex-start; gap: .7rem 1rem; } h1 { font-size: clamp(3rem, 17vw, 5rem); } .hero { padding: 4rem 0; } .section { padding: 3.5rem 0; } .section-heading, .contact-panel { align-items: flex-start; flex-direction: column; } .principles, .link-grid { grid-template-columns: 1fr; } .skill-grid { grid-template-columns: 1fr; } .architecture { grid-template-columns: 1fr 1fr; } }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } *, *::before, *::after { scroll-behavior: auto !important; transition-duration: .01ms !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; } }