:root {
  --background: #090a0c;
  --background-deep: #050607;
  --surface: #111317;
  --surface-strong: #171a20;
  --surface-soft: #0d0f12;
  --text: #f5f5f0;
  --text-soft: #d3d4cf;
  --text-muted: #8d929b;
  --border: rgba(255, 255, 255, 0.105);
  --border-strong: rgba(255, 255, 255, 0.18);
  --accent: #d8ff3e;
  --accent-soft: rgba(216, 255, 62, 0.12);
  --accent-contrast: #111400;
  --shadow: 0 32px 90px rgba(0, 0, 0, 0.42);
  --radius-sm: 14px;
  --radius-md: 24px;
  --radius-lg: 34px;
  --container: 1240px;
  --header-height: 88px;
  --transition: 220ms cubic-bezier(0.2, 0.8, 0.2, 1);
}

html[data-theme="light"] {
  --background: #f2f2ee;
  --background-deep: #e8e8e2;
  --surface: #fbfbf8;
  --surface-strong: #ffffff;
  --surface-soft: #eaeae4;
  --text: #101114;
  --text-soft: #292c31;
  --text-muted: #676c75;
  --border: rgba(16, 17, 20, 0.12);
  --border-strong: rgba(16, 17, 20, 0.2);
  --accent: #9fbd00;
  --accent-soft: rgba(159, 189, 0, 0.12);
  --accent-contrast: #101200;
  --shadow: 0 32px 90px rgba(25, 30, 20, 0.12);
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: calc(var(--header-height) + 24px); }
body {
  margin: 0;
  overflow-x: hidden;
  background: var(--background);
  color: var(--text);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.6;
  text-rendering: optimizeLegibility;
  transition: background-color var(--transition), color var(--transition);
}
body.menu-open { overflow: hidden; }
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button, input, textarea, select { font: inherit; }
button { cursor: pointer; }
.is-hidden { display: none !important; }

.noise {
  position: fixed;
  z-index: 9999;
  inset: 0;
  pointer-events: none;
  opacity: 0.03;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 180 180' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.86' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.85'/%3E%3C/svg%3E");
}
.skip-link {
  position: fixed; top: 12px; left: 12px; z-index: 10000; transform: translateY(-160%);
  padding: 10px 14px; border-radius: 10px; background: var(--accent); color: var(--accent-contrast); font-weight: 850;
}
.skip-link:focus { transform: translateY(0); }
.container { width: min(calc(100% - 48px), var(--container)); margin-inline: auto; }
.section { position: relative; padding: 140px 0; }
.section-panel { background: var(--surface-soft); border-block: 1px solid var(--border); }

.site-header { position: fixed; z-index: 1000; top: 0; left: 0; width: 100%; padding: 16px 0; }
.header-shell {
  min-height: 58px; display: grid; grid-template-columns: auto 1fr auto; align-items: center; gap: 28px;
  padding: 8px 10px 8px 14px; border: 1px solid transparent; border-radius: 22px;
  transition: background-color var(--transition), border-color var(--transition), box-shadow var(--transition), backdrop-filter var(--transition);
}
.site-header.scrolled .header-shell {
  border-color: var(--border); background: color-mix(in srgb, var(--background) 82%, transparent);
  backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px); box-shadow: 0 16px 50px rgba(0,0,0,.15);
}
.brand { display: inline-flex; align-items: center; gap: 12px; min-width: 180px; }
.brand-symbol {
  display: inline-grid; width: 42px; height: 42px; place-items: center; border: 1px solid var(--border-strong); border-radius: 14px;
  background: var(--surface); font-size: 19px; font-weight: 900; letter-spacing: -.05em;
}
.brand-dot { color: var(--accent); }
.brand-copy { display: grid; gap: 0; }
.brand-copy strong { font-size: 14px; letter-spacing: -.025em; }
.brand-copy small { color: var(--text-muted); font-size: 10px; letter-spacing: .08em; text-transform: uppercase; }
.main-nav { justify-self: center; }
.nav-links { display: flex; align-items: center; gap: 6px; }
.nav-links a { padding: 10px 13px; border-radius: 11px; color: var(--text-muted); font-size: 12px; font-weight: 750; transition: color var(--transition), background-color var(--transition); }
.nav-links a span { display: none; }
.nav-links a:hover, .nav-links a.active { background: var(--surface); color: var(--text); }
.mobile-nav-intro, .mobile-nav-footer, .menu-backdrop { display: none; }
.header-actions { display: flex; align-items: center; gap: 8px; }
.theme-toggle, .menu-toggle {
  border: 1px solid var(--border); background: var(--surface); color: var(--text); border-radius: 14px; transition: border-color var(--transition), background-color var(--transition), transform var(--transition);
}
.theme-toggle:hover, .menu-toggle:hover { border-color: var(--border-strong); transform: translateY(-1px); }
.theme-toggle { display: inline-grid; width: 42px; height: 42px; place-items: center; }
.menu-toggle { position: relative; z-index: 1200; display: none; width: 44px; height: 44px; padding: 10px; }
.menu-toggle span { display: block; width: 22px; height: 2px; margin: 4px auto; border-radius: 999px; background: currentColor; transform-origin: center; transition: transform 240ms ease, opacity 180ms ease, width 240ms ease; }
.menu-toggle.open span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.menu-toggle.open span:nth-child(2) { width: 0; opacity: 0; }
.menu-toggle.open span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

.hero { position: relative; min-height: 100svh; padding: 150px 0 36px; overflow: hidden; background: radial-gradient(circle at 72% 26%, var(--accent-soft), transparent 27%); }
.hero::before {
  content: ""; position: absolute; inset: 0; pointer-events: none; opacity: .32;
  background-image: linear-gradient(var(--border) 1px, transparent 1px), linear-gradient(90deg, var(--border) 1px, transparent 1px);
  background-size: 76px 76px; mask-image: linear-gradient(to bottom, black, transparent 86%);
}
.hero-glow { position: absolute; border-radius: 50%; filter: blur(90px); pointer-events: none; }
.hero-glow-one { top: 6%; right: -10%; width: 460px; height: 460px; background: color-mix(in srgb, var(--accent) 15%, transparent); }
.hero-glow-two { bottom: 4%; left: -12%; width: 360px; height: 360px; background: rgba(93, 93, 255, .08); }
.hero-layout { position: relative; z-index: 2; display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(360px, .85fr); align-items: center; gap: 80px; }
.hero-copy { padding-top: 16px; }
.hero-kicker { display: inline-flex; align-items: center; gap: 12px; margin-bottom: 30px; color: var(--text-soft); font-size: 12px; font-weight: 800; letter-spacing: .15em; text-transform: uppercase; }
.status-dot { display: inline-block; flex: 0 0 auto; width: 8px; height: 8px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 5px var(--accent-soft); }
.hero h1 { margin: 0; max-width: 780px; font-size: clamp(68px, 8.5vw, 132px); line-height: .82; letter-spacing: -.075em; font-weight: 850; }
.hero h1 > span { display: block; }
.hero h1 em { display: block; margin-top: 25px; color: var(--text-muted); font-size: clamp(30px, 4vw, 58px); line-height: 1; letter-spacing: -.055em; font-style: normal; font-weight: 520; }
.hero-description { max-width: 650px; margin: 34px 0 0; color: var(--text-soft); font-size: clamp(17px, 1.6vw, 21px); line-height: 1.65; }
.hero-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 14px; margin-top: 38px; }
.button {
  display: inline-flex; min-height: 54px; align-items: center; justify-content: center; gap: 24px; padding: 14px 20px; border: 1px solid transparent; border-radius: 16px;
  font-size: 13px; font-weight: 850; letter-spacing: -.01em; transition: transform var(--transition), background-color var(--transition), border-color var(--transition), color var(--transition);
}
.button:hover { transform: translateY(-3px); }
.button-primary { background: var(--accent); color: var(--accent-contrast); box-shadow: 0 16px 40px color-mix(in srgb, var(--accent) 16%, transparent); }
.button-quiet { border-color: var(--border); background: var(--surface); color: var(--text-soft); }
.button:focus-visible, .social-link:focus-visible, .filter-button:focus-visible, .nav-links a:focus-visible, .theme-toggle:focus-visible, .menu-toggle:focus-visible { outline: 3px solid color-mix(in srgb, var(--accent) 48%, transparent); outline-offset: 3px; }
.social-links { display: flex; flex-wrap: wrap; gap: 9px; margin-top: 28px; }
.social-link { padding: 8px 11px; border-bottom: 1px solid var(--border-strong); color: var(--text-muted); font-size: 11px; font-weight: 800; letter-spacing: .08em; text-transform: uppercase; transition: color var(--transition), border-color var(--transition); }
.social-link:hover { color: var(--text); border-color: var(--accent); }

.hero-stage { position: relative; min-height: 620px; display: grid; place-items: center; }
.portrait-frame { position: relative; width: min(100%, 440px); padding: 14px; border: 1px solid var(--border); border-radius: 32px; background: color-mix(in srgb, var(--surface) 92%, transparent); box-shadow: var(--shadow); transform: rotate(1.5deg); }
.portrait-topline, .portrait-caption { display: flex; justify-content: space-between; gap: 18px; color: var(--text-muted); font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 9px; letter-spacing: .08em; text-transform: uppercase; }
.portrait-topline { padding: 4px 7px 14px; }
.portrait-topline b { color: var(--text-soft); font-weight: 700; }
.portrait-window { position: relative; overflow: hidden; border-radius: 22px; background: var(--surface-soft); }
.portrait-window::before { content: ""; position: absolute; z-index: 2; inset: 0; border: 1px solid rgba(255,255,255,.09); border-radius: inherit; pointer-events: none; }
.portrait-window img { width: 100%; aspect-ratio: 4 / 5; object-fit: cover; filter: saturate(.8) contrast(1.04); }
.portrait-overlay { position: absolute; inset: 0; background: linear-gradient(to top, rgba(0,0,0,.22), transparent 45%); }
.portrait-caption { align-items: center; padding: 14px 7px 3px; }
.portrait-caption > span:first-child { display: inline-flex; align-items: center; gap: 9px; color: var(--text-soft); }
.floating-card { position: absolute; z-index: 5; display: grid; gap: 3px; padding: 15px 17px; border: 1px solid var(--border-strong); border-radius: 16px; background: color-mix(in srgb, var(--background) 86%, transparent); backdrop-filter: blur(14px); box-shadow: 0 16px 45px rgba(0,0,0,.28); }
.floating-card-code { left: -28px; bottom: 18%; transform: rotate(-4deg); }
.floating-card-year { top: 13%; right: -30px; transform: rotate(4deg); }
.floating-label, .floating-card span { color: var(--text-muted); font-size: 9px; font-weight: 800; letter-spacing: .12em; text-transform: uppercase; }
.floating-card code { color: var(--accent); font-size: 12px; }
.floating-card strong { font-size: 24px; line-height: 1; }
.capability-rail { position: relative; z-index: 2; display: flex; align-items: center; justify-content: space-between; gap: 20px; margin-top: 72px; padding: 22px 0 0; border-top: 1px solid var(--border); color: var(--text-muted); font-size: 10px; font-weight: 850; letter-spacing: .14em; text-transform: uppercase; }
.capability-rail i { width: 4px; height: 4px; border-radius: 50%; background: var(--accent); }

.section-index { display: flex; justify-content: space-between; margin-bottom: 58px; padding-bottom: 16px; border-bottom: 1px solid var(--border); color: var(--text-muted); font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 10px; letter-spacing: .13em; text-transform: uppercase; }
.section-heading { max-width: 690px; }
.section-heading-wide { max-width: 930px; margin-bottom: 58px; }
.eyebrow { margin: 0 0 17px; color: var(--accent); font-size: 10px; font-weight: 900; letter-spacing: .2em; text-transform: uppercase; }
.section-heading h2 { margin: 0; font-size: clamp(44px, 5.6vw, 80px); line-height: .98; letter-spacing: -.065em; font-weight: 760; }
.section-heading p:not(.eyebrow) { max-width: 620px; margin: 24px 0 0; color: var(--text-muted); font-size: 16px; }

.about-layout { display: grid; grid-template-columns: minmax(0, .9fr) minmax(0, 1.1fr); gap: 100px; align-items: start; }
.about-copy { max-width: 680px; }
.about-copy p { margin: 0 0 24px; color: var(--text-soft); font-size: clamp(20px, 2.1vw, 29px); line-height: 1.45; letter-spacing: -.025em; }
.about-copy p + p { color: var(--text-muted); font-size: clamp(16px, 1.45vw, 20px); }
.stats-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin-top: 56px; }
.stat-card { min-height: 150px; display: flex; flex-direction: column; justify-content: space-between; padding: 22px; border: 1px solid var(--border); border-radius: 20px; background: var(--surface); }
.stat-card strong { color: var(--accent); font-size: clamp(36px, 4vw, 54px); line-height: 1; letter-spacing: -.06em; }
.stat-card span { color: var(--text-muted); font-size: 10px; font-weight: 800; letter-spacing: .11em; text-transform: uppercase; }

.skills-grid { display: grid; grid-template-columns: repeat(12, 1fr); gap: 14px; }
.skill-group { position: relative; min-height: 250px; grid-column: span 4; overflow: hidden; padding: 28px; border: 1px solid var(--border); border-radius: 24px; background: var(--surface); transition: transform var(--transition), border-color var(--transition), background-color var(--transition); }
.skill-group:nth-child(1), .skill-group:nth-child(4) { grid-column: span 5; }
.skill-group:nth-child(2), .skill-group:nth-child(5) { grid-column: span 3; }
.skill-group::after { content: ""; position: absolute; right: -45px; bottom: -55px; width: 130px; height: 130px; border: 1px solid var(--border); border-radius: 50%; transition: transform .45s ease, border-color .45s ease; }
.skill-group:hover { transform: translateY(-5px); border-color: var(--border-strong); background: var(--surface-strong); }
.skill-group:hover::after { transform: scale(1.28); border-color: color-mix(in srgb, var(--accent) 35%, var(--border)); }
.skill-group h3 { position: relative; z-index: 2; margin: 0; font-size: 24px; letter-spacing: -.04em; }
.skill-tags { position: relative; z-index: 2; display: flex; flex-wrap: wrap; gap: 8px; margin-top: 36px; }
.skill-tag, .project-tag { display: inline-flex; padding: 7px 9px; border: 1px solid var(--border); border-radius: 999px; color: var(--text-muted); font-size: 10px; font-weight: 760; }

.projects-header { display: flex; align-items: end; justify-content: space-between; gap: 40px; margin-bottom: 60px; }
.project-filters { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: 7px; max-width: 470px; }
.filter-button { padding: 9px 12px; border: 1px solid var(--border); border-radius: 999px; background: transparent; color: var(--text-muted); font-size: 10px; font-weight: 850; letter-spacing: .04em; }
.filter-button:hover, .filter-button.active { border-color: var(--accent); background: var(--accent); color: var(--accent-contrast); }
.projects-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; }
.project-card { position: relative; overflow: hidden; border: 1px solid var(--border); border-radius: 28px; background: var(--surface); transition: transform var(--transition), border-color var(--transition); }
.project-card:first-child { grid-column: 1 / -1; display: grid; grid-template-columns: 1.35fr .65fr; }
.project-card:hover { transform: translateY(-6px); border-color: var(--border-strong); }
.project-media { position: relative; overflow: hidden; min-height: 330px; background: var(--surface-soft); }
.project-card:first-child .project-media { min-height: 520px; }
.project-image { width: 100%; height: 100%; object-fit: cover; transition: transform .8s cubic-bezier(.2,.8,.2,1); }
.project-card:hover .project-image { transform: scale(1.035); }
.project-number { position: absolute; z-index: 3; top: 18px; left: 18px; display: inline-grid; min-width: 42px; height: 42px; place-items: center; border: 1px solid rgba(255,255,255,.17); border-radius: 50%; background: rgba(10,11,13,.72); color: #fff; font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 10px; backdrop-filter: blur(10px); }
.project-body { display: flex; flex-direction: column; padding: 28px; }
.project-card:first-child .project-body { justify-content: flex-end; padding: 40px; }
.project-body h3 { margin: 0; font-size: clamp(25px, 3vw, 42px); line-height: 1.03; letter-spacing: -.055em; }
.project-card:not(:first-child) .project-body h3 { font-size: 27px; }
.project-body p { margin: 18px 0 0; color: var(--text-muted); }
.project-tags { display: flex; flex-wrap: wrap; gap: 7px; margin-top: 24px; }
.project-links { display: flex; flex-wrap: wrap; gap: 10px; margin-top: auto; padding-top: 30px; }
.project-links:empty { display: none; }
.project-links a { display: inline-flex; min-height: 42px; align-items: center; padding: 9px 13px; border: 1px solid var(--border); border-radius: 12px; color: var(--text-soft); font-size: 11px; font-weight: 850; transition: border-color var(--transition), color var(--transition), transform var(--transition); }
.project-links a:hover { border-color: var(--accent); color: var(--accent); transform: translateY(-2px); }

.experience-layout { display: grid; grid-template-columns: .75fr 1.25fr; gap: 100px; align-items: start; }
.timeline { border-top: 1px solid var(--border); }
.timeline-item { position: relative; display: grid; grid-template-columns: 160px 1fr; gap: 34px; padding: 30px 8px; border-bottom: 1px solid var(--border); transition: padding-left var(--transition), background-color var(--transition); }
.timeline-item:hover { padding-left: 18px; background: linear-gradient(90deg, var(--accent-soft), transparent 45%); }
.timeline-dot { position: absolute; top: 38px; left: -4px; width: 8px; height: 8px; border-radius: 50%; background: var(--accent); opacity: 0; transition: opacity var(--transition); }
.timeline-item:hover .timeline-dot { opacity: 1; }
.timeline-item time { grid-row: 1 / span 3; color: var(--text-muted); font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 10px; letter-spacing: .06em; text-transform: uppercase; }
.timeline-item h3 { margin: 0; font-size: 24px; letter-spacing: -.04em; }
.timeline-item h4 { margin: 5px 0 0; color: var(--accent); font-size: 11px; letter-spacing: .09em; text-transform: uppercase; }
.timeline-item p { margin: 13px 0 0; color: var(--text-muted); }

.services-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.service-card { position: relative; min-height: 310px; display: flex; flex-direction: column; justify-content: flex-end; padding: 30px; overflow: hidden; border: 1px solid var(--border); border-radius: 26px; background: var(--surface); transition: transform var(--transition), border-color var(--transition); }
.service-card::before { content: attr(data-index); position: absolute; top: 24px; right: 26px; color: var(--text-muted); font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 10px; }
.service-card::after { content: "↗"; position: absolute; top: 21px; left: 26px; color: var(--accent); font-size: 22px; transform: rotate(45deg); transition: transform .35s ease; }
.service-card:hover { transform: translateY(-6px); border-color: var(--border-strong); }
.service-card:hover::after { transform: rotate(0deg); }
.service-card h3 { margin: 0; font-size: 28px; line-height: 1.05; letter-spacing: -.05em; }
.service-card p { margin: 17px 0 0; color: var(--text-muted); }

.contact-section { padding-top: 80px; background: var(--background-deep); }
.contact-shell { position: relative; display: grid; grid-template-columns: 1.15fr .85fr; gap: 70px; align-items: end; overflow: hidden; padding: clamp(34px, 6vw, 80px); border: 1px solid var(--border); border-radius: 38px; background: linear-gradient(135deg, var(--surface), var(--surface-soft)); box-shadow: var(--shadow); }
.contact-orbit { position: absolute; top: -260px; left: -150px; width: 600px; height: 600px; border: 1px solid var(--border); border-radius: 50%; box-shadow: inset 0 0 120px var(--accent-soft); }
.contact-copy, .contact-card { position: relative; z-index: 2; }
.contact-copy h2 { max-width: 750px; margin: 0; font-size: clamp(52px, 7vw, 100px); line-height: .9; letter-spacing: -.075em; }
.contact-copy p:not(.eyebrow) { max-width: 600px; margin: 28px 0 0; color: var(--text-muted); font-size: 17px; }
.contact-cta { margin-top: 34px; }
.contact-card { padding: 24px; border: 1px solid var(--border); border-radius: 24px; background: color-mix(in srgb, var(--background) 72%, transparent); backdrop-filter: blur(12px); }
.contact-card-head { display: flex; justify-content: space-between; align-items: center; padding-bottom: 18px; border-bottom: 1px solid var(--border); color: var(--text-muted); font-size: 10px; font-weight: 850; letter-spacing: .12em; text-transform: uppercase; }
.status-pill { display: inline-flex; align-items: center; gap: 8px; padding: 7px 9px; border: 1px solid var(--border); border-radius: 999px; }
.contact-list { display: grid; }
.contact-item { display: grid; grid-template-columns: 105px 1fr; gap: 20px; padding: 18px 0; border-bottom: 1px solid var(--border); }
.contact-item:last-child { border-bottom: 0; }
.contact-item span { color: var(--text-muted); font-size: 10px; font-weight: 850; letter-spacing: .08em; text-transform: uppercase; }
.contact-item a, .contact-item strong { color: var(--text-soft); font-size: 13px; font-weight: 750; text-align: right; overflow-wrap: anywhere; }

.site-footer { background: var(--background-deep); }
.footer-inner { min-height: 110px; display: flex; align-items: center; justify-content: space-between; gap: 24px; color: var(--text-muted); font-size: 11px; letter-spacing: .05em; text-transform: uppercase; }
.footer-inner a { display: inline-flex; align-items: center; gap: 10px; color: var(--text-soft); }
.footer-inner a span { color: var(--accent); }

.reveal { opacity: 0; transform: translateY(24px); transition: opacity 650ms cubic-bezier(.2,.8,.2,1), transform 650ms cubic-bezier(.2,.8,.2,1); }
.reveal.visible { opacity: 1; transform: translateY(0); }
.empty-state, .noscript-message { padding: 30px; border: 1px dashed var(--border); border-radius: var(--radius-md); color: var(--text-muted); text-align: center; }
.empty-state { grid-column: 1 / -1; }
.noscript-message { margin: 24px; }

@media (max-width: 1060px) {
  .hero-layout { grid-template-columns: 1fr .78fr; gap: 48px; }
  .hero h1 { font-size: clamp(64px, 9vw, 104px); }
  .floating-card-code { left: -12px; }
  .floating-card-year { right: -12px; }
  .about-layout, .experience-layout { gap: 60px; }
  .skill-group, .skill-group:nth-child(1), .skill-group:nth-child(2), .skill-group:nth-child(4), .skill-group:nth-child(5) { grid-column: span 6; }
}

@media (max-width: 900px) {
  .container { width: min(calc(100% - 32px), var(--container)); }
  .site-header { padding: 10px 0; }
  .header-shell { grid-template-columns: auto 1fr auto; min-height: 56px; padding-left: 10px; }
  .brand-copy small { display: none; }
  .brand { min-width: auto; }
  .header-actions { justify-self: end; }
  .menu-toggle { display: block; }
  .main-nav {
    position: fixed; z-index: 1150; top: 0; right: 0; width: min(88vw, 410px); height: 100vh; height: 100dvh; overflow-y: auto;
    padding: 102px 28px 30px; visibility: hidden; border-left: 1px solid var(--border); background: var(--surface);
    box-shadow: -30px 0 80px rgba(0,0,0,.34); transform: translateX(105%); transition: transform 330ms cubic-bezier(.22,1,.36,1), visibility 330ms ease;
  }
  .main-nav.open { visibility: visible; transform: translateX(0); }
  .mobile-nav-intro { display: grid; gap: 6px; margin-bottom: 32px; padding-bottom: 24px; border-bottom: 1px solid var(--border); }
  .mobile-nav-label { color: var(--accent); font-size: 10px; font-weight: 900; letter-spacing: .2em; text-transform: uppercase; }
  .mobile-nav-intro strong { font-size: 26px; letter-spacing: -.045em; }
  .nav-links { display: grid; gap: 8px; }
  .nav-links a { display: grid; grid-template-columns: 38px 1fr; align-items: center; min-height: 62px; padding: 10px 14px; border: 1px solid transparent; border-radius: 16px; color: var(--text); font-size: 18px; font-weight: 800; }
  .nav-links a span { display: inline; color: var(--accent); font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 9px; letter-spacing: .08em; }
  .nav-links a:hover, .nav-links a.active { border-color: var(--border); background: var(--surface-strong); transform: translateX(4px); }
  .mobile-nav-footer { display: flex; align-items: center; gap: 10px; margin-top: 34px; padding: 17px; border: 1px solid var(--border); border-radius: 16px; background: var(--surface-soft); color: var(--text-muted); font-size: 12px; }
  .menu-backdrop { position: fixed; z-index: 1100; inset: 0; display: block; visibility: hidden; background: rgba(3,6,9,.3); opacity: 0; transition: opacity 260ms ease, visibility 260ms ease; }
  .menu-backdrop.visible { visibility: visible; opacity: 1; }

  .hero { min-height: auto; padding-top: 130px; }
  .hero-layout { grid-template-columns: 1fr; gap: 70px; }
  .hero-copy { max-width: 790px; }
  .hero-stage { min-height: 600px; }
  .portrait-frame { width: min(78vw, 440px); }
  .capability-rail { overflow-x: auto; justify-content: flex-start; white-space: nowrap; }
  .capability-rail span { flex: 0 0 auto; }
  .about-layout, .experience-layout { grid-template-columns: 1fr; gap: 50px; }
  .projects-header { display: grid; }
  .project-filters { justify-content: flex-start; max-width: none; }
  .project-card:first-child { grid-template-columns: 1fr; }
  .project-card:first-child .project-media { min-height: 430px; }
  .services-grid { grid-template-columns: 1fr 1fr; }
  .service-card:last-child { grid-column: 1 / -1; }
  .contact-shell { grid-template-columns: 1fr; gap: 48px; }
}

@media (max-width: 640px) {
  .section { padding: 96px 0; }
  .hero { padding-top: 118px; }
  .brand-symbol { width: 38px; height: 38px; }
  .brand-copy { display: none; }
  .hero-kicker { margin-bottom: 23px; }
  .hero h1 { font-size: clamp(57px, 18vw, 82px); line-height: .86; }
  .hero h1 em { margin-top: 18px; font-size: clamp(26px, 9vw, 40px); }
  .hero-description { margin-top: 26px; font-size: 17px; }
  .hero-actions { display: grid; }
  .button { width: 100%; }
  .social-links { gap: 5px; }
  .hero-stage { min-height: 500px; }
  .portrait-frame { width: min(88vw, 390px); transform: none; }
  .portrait-topline, .portrait-caption { font-size: 8px; }
  .floating-card-code { left: -5px; bottom: 13%; }
  .floating-card-year { top: 8%; right: -5px; }
  .capability-rail { margin-top: 54px; }
  .section-index { margin-bottom: 38px; }
  .section-heading h2 { font-size: clamp(42px, 13vw, 62px); }
  .about-copy p { font-size: 21px; }
  .stats-grid { grid-template-columns: 1fr; }
  .stat-card { min-height: 120px; }
  .skills-grid { grid-template-columns: 1fr; }
  .skill-group, .skill-group:nth-child(1), .skill-group:nth-child(2), .skill-group:nth-child(4), .skill-group:nth-child(5) { grid-column: auto; min-height: 220px; }
  .projects-grid { grid-template-columns: 1fr; }
  .project-card:first-child { grid-column: auto; }
  .project-card:first-child .project-media, .project-media { min-height: 290px; }
  .project-card:first-child .project-body, .project-body { padding: 24px; }
  .project-filters { flex-wrap: nowrap; overflow-x: auto; padding-bottom: 6px; }
  .filter-button { flex: 0 0 auto; }
  .timeline-item { grid-template-columns: 1fr; gap: 8px; padding-left: 0; }
  .timeline-item time { grid-row: auto; }
  .timeline-item:hover { padding-left: 10px; }
  .services-grid { grid-template-columns: 1fr; }
  .service-card:last-child { grid-column: auto; }
  .contact-shell { padding: 30px 22px; border-radius: 28px; }
  .contact-copy h2 { font-size: clamp(49px, 15vw, 70px); }
  .contact-item { grid-template-columns: 1fr; gap: 5px; }
  .contact-item a, .contact-item strong { text-align: left; }
  .footer-inner { min-height: 96px; flex-direction: column; justify-content: center; text-align: center; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
  .reveal { opacity: 1; transform: none; }
}