:root {
  color-scheme: dark;
  --bg: #050a16;
  --bg-soft: #08111f;
  --panel: rgba(11, 23, 42, 0.74);
  --panel-solid: #0b1628;
  --line: rgba(145, 190, 244, 0.14);
  --line-bright: rgba(75, 207, 255, 0.46);
  --text: #f3f7fd;
  --muted: #91a2b9;
  --dim: #61758f;
  --cyan: #46d7ff;
  --blue: #5785ff;
  --violet: #9b72ff;
  --green: #4de5b2;
  --max-width: 1180px;
  --font-display: "Space Grotesk", "Noto Sans SC", system-ui, sans-serif;
  --font-body: "Manrope", "Noto Sans SC", system-ui, sans-serif;
  --font-cn: "Noto Sans SC", system-ui, sans-serif;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  overflow-x: hidden;
  background:
    radial-gradient(circle at 82% 8%, rgba(49, 96, 184, 0.11), transparent 26rem),
    radial-gradient(circle at 5% 55%, rgba(52, 80, 168, 0.08), transparent 28rem),
    var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  line-height: 1.7;
}

body::before {
  position: fixed;
  inset: 0;
  z-index: -1;
  background-image:
    linear-gradient(rgba(91, 147, 219, 0.022) 1px, transparent 1px),
    linear-gradient(90deg, rgba(91, 147, 219, 0.022) 1px, transparent 1px);
  background-size: 72px 72px;
  content: "";
  pointer-events: none;
}

::selection { background: rgba(70, 215, 255, 0.25); color: #fff; }
a { color: inherit; text-decoration: none; }
button { font: inherit; }

.skip-link {
  position: fixed;
  top: 1rem;
  left: 1rem;
  z-index: 100;
  padding: 0.7rem 1rem;
  transform: translateY(-180%);
  border-radius: 0.35rem;
  background: var(--cyan);
  color: #03111c;
  font-weight: 700;
}

.skip-link:focus { transform: translateY(0); }

.site-header {
  position: fixed;
  top: 0;
  left: 50%;
  z-index: 50;
  display: flex;
  width: min(calc(100% - 3rem), var(--max-width));
  align-items: center;
  justify-content: space-between;
  padding: 1.2rem 0;
  transform: translateX(-50%);
  transition: padding 220ms ease;
}

.site-header::before {
  position: absolute;
  inset: 0 -1.5rem;
  z-index: -1;
  border-bottom: 1px solid transparent;
  background: rgba(5, 10, 22, 0);
  content: "";
  transition: 220ms ease;
}

.site-header.is-scrolled { padding-block: 0.78rem; }
.site-header.is-scrolled::before {
  border-color: var(--line);
  background: rgba(5, 10, 22, 0.84);
  backdrop-filter: blur(18px);
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-family: var(--font-display);
  font-size: 0.84rem;
  font-weight: 700;
  letter-spacing: 0.14em;
}

.brand-mark {
  position: relative;
  width: 1.7rem;
  height: 1.7rem;
  border: 1px solid var(--cyan);
  border-radius: 50%;
  box-shadow: 0 0 24px rgba(70, 215, 255, 0.3);
}

.brand-mark::before,
.brand-mark::after { position: absolute; content: ""; }
.brand-mark::before { inset: 0.32rem; border: 1px solid var(--blue); border-radius: 50%; }
.brand-mark::after { top: 50%; left: -0.22rem; width: 2.1rem; height: 1px; background: var(--cyan); transform: rotate(-35deg); }
.brand-dot { color: var(--cyan); }

.nav { display: flex; align-items: center; gap: 1.65rem; font-family: var(--font-cn); font-size: 0.75rem; font-weight: 500; letter-spacing: 0.08em; }
.nav > a { color: #afbed2; transition: color 180ms ease; }
.nav > a:hover { color: var(--text); }
.nav .nav-cta { padding: 0.5rem 0.85rem; border: 1px solid var(--line-bright); border-radius: 999px; color: var(--text); }
.menu-button { display: none; width: 2.5rem; height: 2.5rem; padding: 0.6rem; border: 1px solid var(--line); background: rgba(7, 15, 29, 0.72); }
.menu-button span { display: block; width: 100%; height: 1px; margin: 0.3rem 0; background: var(--text); transition: transform 180ms ease; }

.hero {
  position: relative;
  display: grid;
  min-height: 100svh;
  align-items: center;
  overflow: hidden;
  isolation: isolate;
}

.hero-backdrop {
  position: absolute;
  inset: 0;
  z-index: -3;
  background-image: url("assets/robotics-hero.png");
  background-position: center;
  background-size: cover;
  animation: hero-in 1.6s cubic-bezier(0.2, 0.75, 0.25, 1) both;
}

.hero::before {
  position: absolute;
  inset: 0;
  z-index: -2;
  background:
    linear-gradient(90deg, rgba(3, 8, 18, 0.96) 0%, rgba(3, 8, 18, 0.75) 43%, rgba(3, 8, 18, 0.08) 77%),
    linear-gradient(0deg, var(--bg) 0%, transparent 25%, rgba(2, 5, 12, 0.16) 100%);
  content: "";
}

.hero-grid {
  position: absolute;
  inset: auto 0 0;
  z-index: -1;
  height: 42%;
  background-image:
    linear-gradient(rgba(95, 162, 255, 0.08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(95, 162, 255, 0.08) 1px, transparent 1px);
  background-size: 68px 68px;
  mask-image: linear-gradient(transparent, black);
  opacity: 0.43;
  transform: perspective(500px) rotateX(64deg) scale(1.4);
  transform-origin: bottom;
}

.hero-content { width: min(calc(100% - 3rem), var(--max-width)); margin: 0 auto; padding-top: 6rem; }

.eyebrow,
.kicker,
.mono-label {
  color: var(--cyan);
  font-family: var(--font-display);
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.17em;
  text-transform: uppercase;
}

.eyebrow { display: flex; align-items: center; gap: 0.8rem; margin: 0 0 1.25rem; }
.eyebrow span { width: 2.4rem; height: 1px; background: linear-gradient(90deg, var(--cyan), transparent); }
.hero-name { margin: 0 0 0.7rem; color: #c3cfdf; font-family: var(--font-cn); font-size: 0.94rem; letter-spacing: 0.05em; }
.hero-name strong { color: var(--text); font-family: var(--font-display); font-size: 1.14rem; }

h1, h2, h3 { margin-top: 0; font-family: var(--font-cn); line-height: 1.15; }
h1 { max-width: 780px; margin-bottom: 1.35rem; font-family: var(--font-display); font-size: clamp(2.65rem, 4.65vw, 4.45rem); line-height: 1.08; letter-spacing: -0.045em; }
h1 em { color: #8adfff; font-style: normal; text-shadow: 0 0 32px rgba(70, 215, 255, 0.18); }
.hero-copy { max-width: 640px; margin: 0 0 0.5rem; color: #edf6ff; font-family: var(--font-cn); font-size: clamp(1rem, 1.35vw, 1.18rem); font-weight: 600; }
.hero-subcopy { max-width: 660px; margin: 0 0 1.8rem; color: #9caec3; font-family: var(--font-cn); font-size: 0.84rem; }
.hero-actions { display: flex; max-width: 780px; flex-wrap: wrap; gap: 0.65rem; }

.button {
  display: inline-flex;
  min-height: 2.85rem;
  align-items: center;
  justify-content: center;
  gap: 0.7rem;
  padding: 0.72rem 1rem;
  border: 1px solid transparent;
  border-radius: 0.3rem;
  font-family: var(--font-display);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  transition: transform 180ms ease, border-color 180ms ease, box-shadow 180ms ease, background 180ms ease;
}

.button:hover { transform: translateY(-2px); }
.button-primary { background: linear-gradient(135deg, var(--cyan), #5a8cff); box-shadow: 0 12px 36px rgba(33, 142, 220, 0.18); color: #03101c; }
.button-primary:hover { box-shadow: 0 16px 42px rgba(33, 142, 220, 0.3); }
.button-ghost { border-color: var(--line); background: rgba(8, 18, 33, 0.54); backdrop-filter: blur(10px); }
.button-ghost:hover { border-color: var(--line-bright); background: rgba(13, 31, 54, 0.76); }

.status-line { display: flex; align-items: center; gap: 0.65rem; margin-top: 1.8rem; color: #8396ad; font-family: var(--font-cn); font-size: 0.72rem; letter-spacing: 0.04em; }
.status-dot { width: 0.42rem; height: 0.42rem; border-radius: 50%; background: var(--green); box-shadow: 0 0 0 5px rgba(77, 229, 178, 0.07), 0 0 14px rgba(77, 229, 178, 0.8); }
.hero-index { position: absolute; right: max(1.5rem, calc((100vw - var(--max-width)) / 2)); bottom: 3rem; display: flex; align-items: center; gap: 0.8rem; color: #6f86a1; font-family: var(--font-display); font-size: 0.58rem; letter-spacing: 0.16em; writing-mode: vertical-rl; }
.index-line { width: 1px; height: 2.5rem; background: linear-gradient(var(--cyan), transparent); }

.section { width: min(calc(100% - 3rem), var(--max-width)); margin: 0 auto; padding: 7.5rem 0; scroll-margin-top: 4rem; }
.section-heading { display: grid; grid-template-columns: 0.7fr 1.35fr 1fr; gap: 2.5rem; align-items: end; margin-bottom: 3.4rem; }
.section-heading .kicker { align-self: start; margin: 0.35rem 0 0; }
.section-heading h2, .contact-section h2 { margin-bottom: 0; font-size: clamp(1.9rem, 2.85vw, 2.85rem); font-weight: 700; letter-spacing: -0.035em; }
.section-heading > p:last-child { margin: 0; color: var(--muted); font-family: var(--font-cn); font-size: 0.9rem; }

.about-layout { display: grid; grid-template-columns: 1.08fr 1.4fr; gap: 1rem; }
.profile-panel, .info-card, .project-card, .paper-card { border: 1px solid var(--line); background: linear-gradient(145deg, rgba(13, 29, 51, 0.76), rgba(7, 15, 29, 0.64)); }
.profile-panel { display: flex; min-height: 430px; flex-direction: column; padding: 2rem; }
.profile-id { display: flex; align-items: center; gap: 1.2rem; }
.profile-avatar { display: grid; width: 4.8rem; height: 4.8rem; place-items: center; border: 1px solid var(--line-bright); border-radius: 50%; background: radial-gradient(circle at 35% 30%, #173c62, #081321); color: var(--cyan); font-family: var(--font-display); font-size: 2rem; box-shadow: 0 0 35px rgba(70, 215, 255, 0.12); }
.profile-id .mono-label { margin: 0 0 0.2rem; }
.profile-id h3 { margin: 0; font-family: var(--font-display); font-size: 1.72rem; }
.profile-id p:last-child { margin: 0.25rem 0 0; color: var(--muted); font-family: var(--font-cn); font-size: 0.82rem; }
.profile-statement { margin: 2rem 0; color: #c8d5e5; font-family: var(--font-cn); font-size: 0.94rem; line-height: 1.9; }
.profile-meta { display: grid; gap: 0.8rem; margin-top: auto; }
.profile-meta span { display: flex; justify-content: space-between; gap: 1rem; padding-top: 0.75rem; border-top: 1px solid var(--line); color: #a9b9cc; font-family: var(--font-cn); font-size: 0.73rem; }
.profile-meta b { color: var(--dim); font-weight: 500; }
.about-cards { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1rem; }
.info-card { position: relative; min-height: 207px; overflow: hidden; padding: 1.4rem; transition: transform 220ms ease, border-color 220ms ease; }
.info-card:hover { transform: translateY(-4px); border-color: var(--line-bright); }
.info-card::after { position: absolute; right: -4rem; bottom: -5rem; width: 10rem; height: 10rem; border-radius: 50%; background: var(--cyan); filter: blur(70px); content: ""; opacity: 0.05; }
.card-symbol { position: absolute; top: 1.3rem; right: 1.3rem; color: var(--cyan); font-family: var(--font-display); font-size: 1.2rem; }
.info-card .mono-label { margin: 0 0 2rem; }
.info-card h3 { margin-bottom: 0.65rem; font-size: 1.14rem; }
.info-card p:last-child { margin: 0; color: var(--muted); font-family: var(--font-cn); font-size: 0.82rem; }

.roadmap { position: relative; display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; overflow: hidden; border: 1px solid var(--line); background: var(--line); }
.roadmap::before { position: absolute; top: 3.55rem; left: 6%; right: 6%; z-index: 1; height: 1px; background: linear-gradient(90deg, transparent, var(--line-bright) 12%, var(--line-bright) 88%, transparent); content: ""; }
.roadmap-step { position: relative; min-height: 275px; padding: 1.4rem; background: rgba(7, 16, 30, 0.96); }
.step-index { color: var(--dim); font-family: var(--font-display); font-size: 0.65rem; letter-spacing: 0.12em; }
.step-dot { position: absolute; top: 3.25rem; left: 1.4rem; z-index: 2; width: 0.62rem; height: 0.62rem; border: 1px solid var(--cyan); border-radius: 50%; background: var(--bg); box-shadow: 0 0 14px rgba(70, 215, 255, 0.7); }
.roadmap-step > div { margin-top: 4rem; }
.roadmap-step .mono-label { margin: 0 0 0.45rem; }
.roadmap-step h3 { margin-bottom: 0.7rem; font-family: var(--font-display); font-size: 1.08rem; }
.roadmap-step p:last-child { margin: 0; color: var(--muted); font-family: var(--font-cn); font-size: 0.78rem; }

.project-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1rem; }
.project-card { min-height: 320px; padding: 1.6rem; transition: transform 220ms ease, border-color 220ms ease; }
.project-card:hover { transform: translateY(-5px); border-color: var(--line-bright); }
.project-top { display: flex; align-items: center; justify-content: space-between; margin-bottom: 2.5rem; }
.project-icon { display: grid; width: 2.4rem; height: 2.4rem; place-items: center; border: 1px solid var(--line); color: var(--cyan); font-size: 1.1rem; }
.project-status { padding: 0.25rem 0.55rem; border: 1px solid rgba(77, 229, 178, 0.3); border-radius: 999px; color: var(--green); font-family: var(--font-display); font-size: 0.55rem; letter-spacing: 0.12em; }
.project-status.planned { border-color: rgba(70, 215, 255, 0.28); color: var(--cyan); }
.project-status.longterm { border-color: rgba(155, 114, 255, 0.35); color: #b69bff; }
.project-card .mono-label { margin: 0 0 0.45rem; }
.project-card h3 { margin-bottom: 0.75rem; font-family: var(--font-display); font-size: 1.28rem; }
.project-card > p:not(.mono-label) { min-height: 3.2rem; margin: 0; color: var(--muted); font-family: var(--font-cn); font-size: 0.82rem; }
.card-tags, .paper-keywords { display: flex; flex-wrap: wrap; gap: 0.4rem; margin-top: 1.3rem; }
.card-tags span, .paper-keywords span { padding: 0.23rem 0.5rem; border: 1px solid var(--line); border-radius: 999px; color: #9eb2ca; font-family: var(--font-display); font-size: 0.58rem; }
.project-card > a { display: flex; align-items: center; justify-content: space-between; margin-top: 1.7rem; padding-top: 1rem; border-top: 1px solid var(--line); color: #b7c7d9; font-family: var(--font-cn); font-size: 0.73rem; }
.project-card > a span { color: var(--cyan); font-size: 1rem; }

.notes-board { display: grid; grid-template-columns: repeat(5, 1fr); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.note-card { display: flex; min-height: 300px; flex-direction: column; padding: 1.4rem; border-right: 1px solid var(--line); background: rgba(7, 16, 30, 0.45); transition: background 200ms ease, transform 200ms ease; }
.note-card:last-child { border-right: 0; }
.note-card:hover { z-index: 1; background: rgba(14, 35, 60, 0.76); transform: translateY(-5px); }
.note-card > span { color: var(--dim); font-family: var(--font-display); font-size: 0.62rem; }
.note-card > div { margin-top: auto; }
.note-card .mono-label { margin: 0 0 0.5rem; }
.note-card h3 { margin-bottom: 0.7rem; font-family: var(--font-display); font-size: 1.06rem; }
.note-card p:last-child { margin: 0; color: var(--muted); font-family: var(--font-cn); font-size: 0.76rem; }
.note-card > b { margin-top: 1.4rem; color: var(--cyan); font-weight: 400; }

.paper-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1rem; }
.paper-card { position: relative; min-height: 310px; padding: 1.45rem; overflow: hidden; }
.paper-card::before { position: absolute; top: 0; left: 0; width: 100%; height: 2px; background: linear-gradient(90deg, var(--cyan), transparent 70%); content: ""; opacity: 0.65; }
.paper-year { margin-bottom: 3rem; color: var(--dim); font-family: var(--font-display); font-size: 0.66rem; }
.paper-card .mono-label { margin: 0 0 0.5rem; }
.paper-card h3 { margin-bottom: 0.9rem; font-family: var(--font-display); font-size: 1.3rem; }
.paper-card > p:not(.mono-label) { margin: 0; color: var(--muted); font-family: var(--font-cn); font-size: 0.78rem; }

.industry-list { border-top: 1px solid var(--line); }
.industry-item { display: grid; grid-template-columns: 0.55fr 2.4fr 0.7fr; gap: 1.5rem; align-items: center; padding: 1.65rem 0; border-bottom: 1px solid var(--line); transition: padding 200ms ease, background 200ms ease; }
.industry-item:hover { padding-inline: 1rem; background: linear-gradient(90deg, rgba(70, 215, 255, 0.055), transparent); }
.industry-code { color: var(--dim); font-family: var(--font-display); font-size: 0.62rem; letter-spacing: 0.12em; }
.industry-item h3 { margin: 0 0 0.35rem; font-family: var(--font-display); font-size: 1.12rem; }
.industry-item p { margin: 0; color: var(--muted); font-family: var(--font-cn); font-size: 0.78rem; }
.industry-label { justify-self: end; padding: 0.25rem 0.55rem; border: 1px solid var(--line); border-radius: 999px; color: #9ab0c8; font-family: var(--font-cn); font-size: 0.62rem; }

.timeline { position: relative; max-width: 900px; margin-left: auto; }
.timeline::before { position: absolute; top: 0.5rem; bottom: 1rem; left: 8.1rem; width: 1px; background: linear-gradient(var(--cyan), rgba(87, 133, 255, 0.3), transparent); content: ""; }
.timeline-item { display: grid; grid-template-columns: 1rem 5.4rem 1fr; gap: 1.4rem; min-height: 180px; }
.timeline-marker { position: relative; grid-column: 1; }
.timeline-marker span { position: absolute; top: 0.55rem; left: 7.8rem; z-index: 2; width: 0.62rem; height: 0.62rem; border: 1px solid var(--cyan); border-radius: 50%; background: var(--bg); box-shadow: 0 0 13px rgba(70, 215, 255, 0.65); }
.timeline-date { grid-column: 2; margin: 0.18rem 0 0; color: var(--dim); font-family: var(--font-display); font-size: 0.62rem; letter-spacing: 0.12em; }
.timeline-item > div:last-child { grid-column: 3; padding: 0 0 2.7rem 2rem; }
.timeline-item .mono-label { margin: 0 0 0.45rem; }
.timeline-item h3 { margin-bottom: 0.6rem; font-size: 1.16rem; }
.timeline-item p:last-child { max-width: 620px; margin: 0; color: var(--muted); font-family: var(--font-cn); font-size: 0.8rem; }

.contact-section { position: relative; display: flex; min-height: 650px; flex-direction: column; align-items: center; justify-content: center; overflow: hidden; padding: 7rem 1.5rem; text-align: center; }
.contact-section::before { position: absolute; inset: 0; z-index: -1; background: radial-gradient(circle at 50% 50%, rgba(28, 89, 146, 0.2), transparent 34rem); content: ""; }
.contact-section h2 { margin-bottom: 1.2rem; }
.contact-section > p:not(.kicker) { max-width: 620px; margin: 0 0 2.2rem; color: var(--muted); font-family: var(--font-cn); }
.contact-orbit { position: absolute; z-index: -1; width: min(74vw, 760px); aspect-ratio: 1; border: 1px solid rgba(70, 215, 255, 0.085); border-radius: 50%; }
.contact-orbit::before, .contact-orbit::after { position: absolute; border: 1px solid rgba(76, 125, 255, 0.075); border-radius: 50%; content: ""; }
.contact-orbit::before { inset: 14%; }
.contact-orbit::after { inset: 29%; }
.contact-orbit span { position: absolute; width: 0.45rem; height: 0.45rem; border-radius: 50%; background: var(--cyan); box-shadow: 0 0 18px var(--cyan); }
.contact-orbit span:first-child { top: 18%; left: 15%; }
.contact-orbit span:last-child { right: 5%; bottom: 35%; background: var(--violet); box-shadow: 0 0 18px var(--violet); }
.contact-links { display: grid; width: min(100%, 670px); grid-template-columns: repeat(2, 1fr); gap: 0.8rem; }
.contact-card { display: grid; grid-template-columns: auto 1fr auto; gap: 0.9rem; align-items: center; padding: 1rem; border: 1px solid var(--line); background: rgba(7, 16, 30, 0.72); text-align: left; transition: transform 180ms ease, border-color 180ms ease; }
a.contact-card:hover { transform: translateY(-3px); border-color: var(--line-bright); }
.contact-icon { display: grid; width: 2.6rem; height: 2.6rem; place-items: center; border: 1px solid var(--line-bright); color: var(--cyan); font-family: var(--font-display); font-size: 0.72rem; }
.contact-card span:nth-child(2) { display: flex; flex-direction: column; }
.contact-card b { font-family: var(--font-display); font-size: 0.82rem; }
.contact-card small { color: var(--muted); font-family: var(--font-cn); font-size: 0.65rem; }
.contact-card i { color: var(--cyan); font-style: normal; }
.contact-disabled { opacity: 0.7; }

footer { display: flex; width: min(calc(100% - 3rem), var(--max-width)); justify-content: space-between; margin: 0 auto; padding: 1.5rem 0 2rem; border-top: 1px solid var(--line); color: #6e829c; font-size: 0.65rem; letter-spacing: 0.06em; }
footer a:hover { color: var(--cyan); }

.reveal { opacity: 0; transform: translateY(24px); transition: opacity 700ms ease, transform 700ms ease; }
.reveal.is-visible { opacity: 1; transform: translateY(0); }

@keyframes hero-in {
  from { opacity: 0; transform: scale(1.055); }
  to { opacity: 1; transform: scale(1); }
}

@media (max-width: 1000px) {
  .nav { gap: 1rem; }
  .section-heading { grid-template-columns: 0.55fr 1.3fr 1fr; }
  .roadmap { grid-template-columns: repeat(2, 1fr); }
  .roadmap::before { display: none; }
  .roadmap-step { min-height: 230px; }
  .roadmap-step > div { margin-top: 3.5rem; }
  .notes-board { grid-template-columns: repeat(3, 1fr); }
  .note-card { border-bottom: 1px solid var(--line); }
  .paper-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 820px) {
  .menu-button { display: block; }
  .nav { position: absolute; top: calc(100% + 0.55rem); right: 0; display: none; width: min(280px, calc(100vw - 2rem)); flex-direction: column; align-items: stretch; gap: 0; padding: 0.55rem; border: 1px solid var(--line); background: rgba(5, 10, 22, 0.97); backdrop-filter: blur(16px); }
  .nav.is-open { display: flex; }
  .nav > a { padding: 0.75rem 0.85rem; }
  .nav .nav-cta { margin-top: 0.35rem; text-align: center; }
  .hero::before { background: linear-gradient(90deg, rgba(3, 8, 18, 0.94), rgba(3, 8, 18, 0.42)), linear-gradient(0deg, var(--bg), transparent 35%); }
  .hero-backdrop { background-position: 58% center; }
  .section-heading { grid-template-columns: 1fr; gap: 1rem; }
  .section-heading h2 { max-width: 650px; }
  .section-heading > p:last-child { max-width: 560px; }
  .about-layout { grid-template-columns: 1fr; }
  .project-grid { grid-template-columns: 1fr; }
  .notes-board { grid-template-columns: repeat(2, 1fr); }
  .note-card { min-height: 260px; }
  .industry-item { grid-template-columns: 0.45fr 2fr auto; }
}

@media (max-width: 600px) {
  .site-header { width: calc(100% - 2rem); }
  .site-header::before { inset-inline: -1rem; }
  .brand { font-size: 0.72rem; }
  .hero-content { width: calc(100% - 2rem); padding-top: 5rem; }
  h1 { max-width: 100%; font-size: clamp(2.05rem, 9.2vw, 2.8rem); line-height: 1.12; }
  .hero-name { font-size: 0.8rem; }
  .hero-name strong { font-size: 1rem; }
  .hero-copy { font-size: 0.94rem; }
  .hero-subcopy { font-size: 0.77rem; }
  .hero-actions { display: grid; width: 100%; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0.5rem; }
  .hero-actions .button:last-child { grid-column: 1 / -1; }
  .button { min-width: 0; min-height: 2.6rem; padding: 0.62rem 0.55rem; font-size: 0.65rem; white-space: nowrap; }
  .hero-index { display: none; }
  .section { width: calc(100% - 2rem); padding-block: 5.4rem; }
  .section-heading h2, .contact-section h2 { font-size: 1.72rem; line-height: 1.25; }
  .about-cards { grid-template-columns: 1fr; }
  .profile-panel { min-height: 0; padding: 1.35rem; }
  .profile-meta span { flex-direction: column; gap: 0.15rem; }
  .roadmap { grid-template-columns: 1fr; }
  .roadmap-step { min-height: 215px; }
  .notes-board, .paper-grid { grid-template-columns: 1fr; }
  .note-card { min-height: 230px; border-right: 0; }
  .paper-card { min-height: 280px; }
  .industry-item { grid-template-columns: 1fr auto; gap: 0.7rem; }
  .industry-code { grid-column: 1 / -1; }
  .industry-label { align-self: start; }
  .timeline { margin-left: 0; }
  .timeline::before { left: 0.3rem; }
  .timeline-item { grid-template-columns: 1rem 1fr; gap: 0.8rem; min-height: 190px; }
  .timeline-marker span { left: 0; }
  .timeline-date { grid-column: 2; }
  .timeline-item > div:last-child { grid-column: 2; padding: 0 0 2.5rem 0; }
  .contact-section { min-height: 620px; }
  .contact-links { grid-template-columns: 1fr; }
  footer { width: calc(100% - 2rem); flex-wrap: wrap; gap: 0.8rem; }
  footer span:nth-child(2) { display: none; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; }
  .reveal { opacity: 1; transform: none; }
}