:root {
  color-scheme: dark;
  --bg: #0F131A;
  --card: #151B24;
  --elevated: #1A202B;
  --card-soft: rgba(21, 27, 36, 0.84);
  --panel-muted: rgba(18, 24, 33, 0.76);
  --header-bg: rgba(15, 19, 26, 0.86);
  --icon-bg: rgba(214, 154, 45, 0.09);
  --text: #F3F4F6;
  --muted: #A7B0BD;
  --line: #2B3442;
  --accent: #D69A2D;
  --accent-hover: #F3B64A;
  --accent-secondary: #C58A25;
  --success: #10B981;
  --warning: #F59E0B;
  --error: #EF4444;
  --shadow: rgba(0, 0, 0, 0.22);
  --background-layer:
    radial-gradient(circle at 18% 8%, rgba(214, 154, 45, 0.06), transparent 28rem),
    radial-gradient(circle at 82% 4%, rgba(243, 244, 246, 0.045), transparent 28rem),
    linear-gradient(180deg, #0F131A, #101722 52%, #131A24);
  --glow-one: rgba(214, 154, 45, 0.08);
  --glow-two: rgba(243, 244, 246, 0.055);
  --glow-three: rgba(214, 154, 45, 0.045);
  --mono: "IBM Plex Sans", ui-sans-serif, system-ui, sans-serif;
  --sans: "Inter", "IBM Plex Sans", system-ui, sans-serif;
  --section-space: 52px;
}

:root[data-theme="light"] {
  color-scheme: light;
  --bg: #F7F5EF;
  --card: #FFFFFF;
  --elevated: #FFFFFF;
  --card-soft: rgba(255, 255, 255, 0.9);
  --panel-muted: rgba(250, 248, 242, 0.92);
  --header-bg: rgba(255, 255, 255, 0.88);
  --icon-bg: rgba(255, 255, 255, 0.9);
  --text: #111827;
  --muted: #5B6472;
  --line: #E6E0D3;
  --shadow: rgba(55, 48, 38, 0.1);
  --background-layer:
    radial-gradient(circle at 20% 10%, rgba(214, 154, 45, 0.1), transparent 28rem),
    radial-gradient(circle at 82% 0%, rgba(17, 24, 39, 0.045), transparent 26rem),
    linear-gradient(180deg, #F7F5EF, #F4F1EA 52%, #EEE9DF);
  --glow-one: rgba(214, 154, 45, 0.09);
  --glow-two: rgba(17, 24, 39, 0.035);
  --glow-three: rgba(197, 138, 37, 0.055);
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; font-size: 17px; }
.no-js .dynamic-background canvas,
.no-js .marquee[data-marquee] {
  display: none;
}
body {
  margin: 0;
  overflow-x: hidden;
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
}
.dynamic-background {
  position: fixed;
  inset: 0;
  z-index: -2;
  overflow: hidden;
  background: var(--background-layer);
}
.dynamic-background canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  opacity: 1;
}
.glow {
  position: absolute;
  width: clamp(18rem, 34vw, 34rem);
  height: clamp(18rem, 34vw, 34rem);
  border-radius: 999px;
  filter: blur(64px);
  opacity: 0.2;
  transform: translate3d(0, 0, 0);
  animation: float-glow 18s ease-in-out infinite alternate;
}
.glow-one {
  top: -8rem;
  left: -8rem;
  background: var(--glow-one);
}
.glow-two {
  top: 10%;
  right: -10rem;
  background: var(--glow-two);
  animation-delay: -6s;
}
.glow-three {
  bottom: -12rem;
  left: 24%;
  background: var(--glow-three);
  animation-delay: -11s;
}
a { color: inherit; text-decoration: none; }
a:focus-visible,
button:focus-visible,
select:focus-visible {
  outline: 3px solid rgba(214, 154, 45, 0.55);
  outline-offset: 3px;
}

.header {
  position: sticky;
  top: 18px;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  width: min(1380px, calc(100% - 32px));
  margin: 14px auto 28px;
  padding: 12px 14px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: var(--header-bg);
  box-shadow: 0 18px 48px var(--shadow);
  backdrop-filter: blur(18px);
  transition: border-color .22s ease, box-shadow .22s ease, padding .22s ease, top .22s ease;
}
.header.is-scrolled {
  top: 10px;
  padding-block: 9px;
  border-color: rgba(214, 154, 45, 0.26);
  box-shadow: 0 16px 42px rgba(0, 0, 0, 0.24);
}
.brand, nav, .actions { display: flex; align-items: center; }
.header-actions {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-left: auto;
}
.brand {
  gap: 10px;
  font: 700 .9rem var(--sans);
  letter-spacing: -.02em;
  transition: color .18s ease, transform .18s ease;
}
.brand:hover {
  color: var(--accent-hover);
  transform: translateY(-1px);
}
.brand span {
  display: grid;
  width: 36px;
  height: 36px;
  place-items: center;
  border-radius: 12px;
  border: 1px solid var(--line);
  background: var(--elevated);
  color: var(--accent-hover);
  box-shadow: none;
  transition: border-color .18s ease, background .18s ease, transform .18s ease;
}
.brand.is-active {
  color: var(--accent-hover);
}
.brand.is-active span {
  border-color: rgba(214, 154, 45, 0.5);
  background: var(--icon-bg);
}
nav {
  flex-wrap: wrap;
  justify-content: center;
  gap: 4px;
  padding: 4px;
  border: 1px solid rgba(214, 154, 45, 0.12);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.025);
  color: var(--muted);
  font-size: .88rem;
}
nav a {
  position: relative;
  z-index: 0;
  padding: 8px 11px;
  border-radius: 999px;
  transition: color .2s ease, transform .2s ease;
}
nav a::before {
  position: absolute;
  inset: 0;
  z-index: -1;
  border: 1px solid rgba(214, 154, 45, 0.22);
  border-radius: 999px;
  background: rgba(214, 154, 45, 0.08);
  content: "";
  opacity: 0;
  transform: scale(.92);
  transition: opacity .2s ease, transform .2s ease, background .2s ease;
}
nav a:hover,
nav a.is-active {
  color: var(--accent-hover);
  transform: translateY(-1px);
}
button:hover { color: var(--accent-hover); }
nav a:hover::before,
nav a.is-active::before {
  opacity: 1;
  transform: scale(1);
}
nav a.is-active::before {
  background: rgba(214, 154, 45, 0.12);
}
.nav-toggle {
  display: none;
  width: 36px;
  height: 34px;
  flex-shrink: 0;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  padding: 0;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--elevated);
  cursor: pointer;
  color: var(--text);
}
.nav-toggle span {
  display: block;
  width: 16px;
  height: 1.5px;
  background: currentColor;
  border-radius: 999px;
  transition: transform .22s ease, opacity .22s ease;
}
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

.header-link {
  padding: 10px 16px;
  border: 1px solid rgba(214, 154, 45, 0.38);
  border-radius: 12px;
  color: var(--accent);
  font-size: .86rem;
}
.header-link:hover {
  border-color: var(--accent-hover);
  color: var(--accent-hover);
  background: rgba(255, 255, 255, 0.03);
}
.control-group {
  display: inline-flex;
  align-items: center;
  gap: 2px;
  padding: 3px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--elevated);
}
.theme-toggle {
  display: inline-grid;
  width: 36px;
  height: 34px;
  place-items: center;
  border: 0;
  border-radius: 10px;
  background: transparent;
  color: var(--accent);
  cursor: pointer;
  font: 700 1rem var(--sans);
}
.theme-toggle:hover {
  background: var(--icon-bg);
  color: var(--accent-hover);
}
.language-select {
  height: 34px;
  padding: 0 10px;
  border: 0;
  border-radius: 10px;
  background: transparent;
  color: var(--text);
  cursor: pointer;
  font: 700 .86rem var(--sans);
}
.language-select:hover { background: var(--icon-bg); }
.language-select:focus {
  outline: 2px solid rgba(214, 154, 45, 0.35);
  outline-offset: 2px;
}

main, .section { width: min(1380px, calc(100% - 32px)); margin: 0 auto; }
.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(330px, .72fr);
  gap: 20px;
  align-items: start;
  min-height: auto;
  padding: 28px 0 var(--section-space);
}
.hero-copy {
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
  padding-top: clamp(.5rem, 2vh, 1.6rem);
}
.eyebrow, .tag, time, .status {
  color: var(--accent-secondary);
  font: 700 .95rem var(--sans);
  letter-spacing: .06em;
  text-transform: uppercase;
}
.section-title .eyebrow {
  font-size: 1.7rem;
}
.hero-handle {
  font-size: clamp(1.15rem, 1.5vw, 1.45rem);
  letter-spacing: .12em;
  margin-bottom: 0;
  text-transform: none;
}
h1 {
  max-width: 760px;
  margin: 4px 0 12px;
  font-size: clamp(3.4rem, 7.2vw, 7.8rem);
  line-height: .9;
  letter-spacing: -.065em;
  text-transform: none;
}
h1 span {
  display: block;
  color: var(--text);
  font-weight: 800;
  letter-spacing: -.07em;
  opacity: 1;
}
.role { margin: 0; color: var(--accent-secondary); font-size: clamp(1.45rem, 2.35vw, 2.05rem); font-weight: 700; }
.lead { max-width: 720px; margin: 18px 0 0; color: var(--muted); font-size: 1.08rem; line-height: 1.75; }
.lead-break { display: block; height: .52rem; }
.actions { flex-wrap: wrap; gap: 14px; margin-top: 28px; }
.btn {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  min-height: 48px;
  padding: 0 22px;
  border-radius: 12px;
  font-weight: 700;
  transition: transform .18s ease;
}
.btn:hover { transform: translateY(-2px); }
.primary {
  border: 1px solid rgba(214, 154, 45, 0.42);
  background: var(--elevated);
  color: var(--accent);
  box-shadow: 0 14px 32px rgba(0, 0, 0, 0.22);
}
.primary:hover {
  border-color: var(--accent-hover);
  color: #15100A;
  background: linear-gradient(180deg, #F0B84F, #D69A2D);
}
.secondary { border: 1px solid var(--line); }

.hero-card, .cards article, .timeline article > div, .contact-card {
  border: 1px solid var(--line);
  border-radius: 24px;
  background: var(--card-soft);
  box-shadow: 0 18px 46px var(--shadow);
  backdrop-filter: blur(18px);
}
.hero-card,
.cards article,
.timeline article > div,
.contact-card {
  transition: transform .2s ease, border-color .2s ease, box-shadow .2s ease;
}
.hero-card:hover,
.cards article:hover,
.timeline article > div:hover,
.contact-card:hover {
  border-color: rgba(214, 154, 45, 0.28);
  box-shadow: 0 24px 58px rgba(0, 0, 0, 0.24);
  transform: translateY(-2px);
}
.reveal {
  opacity: 0;
  transform: translateY(22px) scale(.985);
  transition:
    opacity .65s ease,
    transform .65s cubic-bezier(.2, .8, .2, 1);
  transition-delay: var(--reveal-delay, 0ms);
  will-change: opacity, transform;
}
.reveal-delay-1 { --reveal-delay: 60ms; }
.reveal-delay-2 { --reveal-delay: 120ms; }
.reveal.is-visible {
  opacity: 1;
  transform: translateY(0) scale(1);
}
.hero-card { align-self: start; display: flex; flex-direction: column; justify-content: flex-start; gap: 18px; min-height: auto; padding: 30px; }
.avatar {
  width: 150px;
  height: 150px;
  overflow: hidden;
  border-radius: 22px;
  border: 1px solid var(--line);
  background: var(--elevated);
  box-shadow: 0 12px 32px var(--shadow);
}
.avatar img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center center;
}
.avatar picture { display: block; width: 100%; height: 100%; }
.status { display: inline-flex; align-items: center; gap: 10px; margin: 0; }
.hero-card .status { text-transform: none; }
.status-icon {
  display: inline-grid;
  flex: 0 0 auto;
  width: 24px;
  height: 24px;
  place-items: center;
  border: 1px solid rgba(16, 185, 129, 0.35);
  border-radius: 8px;
  background: rgba(16, 185, 129, 0.12);
  color: var(--success);
}
.status-icon svg {
  width: 15px;
  height: 15px;
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.hero-card h2 { margin: 0; font-size: 2.1rem; letter-spacing: -.04em; }
.hero-card p, .cards p, .timeline p { color: var(--muted); line-height: 1.65; }
.hero-card-meta {
  display: grid;
  gap: 8px;
}
.hero-card-meta p {
  margin: 0;
}
.hero-card-meta p:first-child {
  color: var(--text);
  font-weight: 600;
}
.stats { display: grid; gap: 10px; margin-top: 4px; }
.stats div { padding: 13px 15px; border: 1px solid var(--line); border-radius: 14px; background: var(--panel-muted); }
.stats strong { display: block; color: var(--accent); font: 800 1.7rem var(--sans); }
.stats span { color: var(--muted); font-size: .95rem; }

.strip {
  overflow: hidden;
  width: 100vw;
  margin-left: calc(50% - 50vw);
  padding: 16px 0;
  border-block: 1px solid var(--line);
  color: var(--muted);
  font: .9rem var(--sans);
  white-space: nowrap;
}
.marquee {
  display: flex;
  width: 100%;
  mask-image: linear-gradient(90deg, transparent, black 10%, black 90%, transparent);
}
.marquee-track {
  display: flex;
  width: max-content;
  animation: marquee 34s linear infinite;
}
.marquee-group {
  display: flex;
  flex-shrink: 0;
}
.marquee-group span {
  display: inline-flex;
  align-items: center;
  padding-right: 38px;
}
.marquee-group span::before {
  margin-right: 38px;
  color: var(--accent);
  content: "·";
  font-size: 1.75rem;
  line-height: 0;
}
.noscript-marquee .marquee-track {
  width: 100%;
  animation: none;
}
.noscript-marquee .marquee-group {
  flex-wrap: wrap;
  justify-content: center;
  row-gap: 8px;
  width: 100%;
}
.strip:hover .marquee-track { animation-play-state: paused; }

.section { padding: var(--section-space) 0; scroll-margin-top: 96px; }
.strip + .section { padding-top: var(--section-space); }
.section-title { max-width: 760px; margin-bottom: 28px; }
.section-title .eyebrow::after {
  content: "";
  display: block;
  width: min(420px, 100%);
  height: 2px;
  margin-top: 10px;
  background: linear-gradient(90deg, currentColor, transparent);
}
.section-title h2 { margin: 8px 0 0; font-size: clamp(1.9rem, 3.6vw, 3.1rem); line-height: .98; letter-spacing: -.04em; }
.section-kicker { margin: 14px 0 0; color: var(--muted); font-size: 1.05rem; line-height: 1.7; }
.project-group-title {
  margin: 0 0 14px;
  color: var(--text);
  font-size: 1.2rem;
  letter-spacing: -.02em;
}
.project-group-title-spaced {
  margin-top: 36px;
}
.cards { display: grid; gap: 18px; }
.two { grid-template-columns: repeat(2, 1fr); }
.three { grid-template-columns: repeat(3, 1fr); }
.four { grid-template-columns: repeat(4, 1fr); }
.offensive-tooling-grid {
  grid-template-columns: minmax(0, 2.25fr) minmax(260px, .75fr);
  align-items: stretch;
}
.cards article {
  display: flex;
  min-height: 230px;
  flex-direction: column;
  padding: 22px;
}
.writeup-placeholder {
  min-height: 200px;
}
.cards h3, .timeline h3 { margin: 6px 0 0; font-size: 1.35rem; letter-spacing: -.04em; }
.timeline h4 {
  margin: 18px 0 0;
  color: var(--text);
  font-size: 1rem;
  letter-spacing: -.02em;
}
.cards h3,
.timeline h3 {
  display: flex;
  align-items: center;
  gap: 10px;
}
.card-icon {
  display: inline-grid;
  flex: 0 0 auto;
  width: 34px;
  height: 34px;
  place-items: center;
  border: 1px solid rgba(214, 154, 45, 0.28);
  border-radius: 10px;
  background: var(--icon-bg);
  color: var(--accent);
}
.card-icon svg {
  width: 18px;
  height: 18px;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1.8;
}
ul { margin: 14px 0 0; padding: 0; list-style: none; }
li { position: relative; padding-left: 18px; color: var(--muted); line-height: 1.62; }
li::before { position: absolute; left: 0; color: var(--accent); content: "/"; }
.tooling-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  margin: 18px 0 0;
}
.tooling-item {
  display: grid;
  gap: 6px;
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: var(--panel-muted);
  transition: border-color .18s ease, transform .18s ease, background .18s ease;
}
.tooling-item:hover {
  border-color: rgba(214, 154, 45, 0.22);
  background: rgba(214, 154, 45, 0.04);
  transform: translateY(-1px);
}
.tooling-list dt {
  color: var(--text);
  font-weight: 800;
}
.tooling-list dd {
  margin: 0;
  color: var(--muted);
  line-height: 1.5;
}
.tooling-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 2px;
}
.tooling-tags span {
  display: inline-flex;
  align-items: center;
  min-height: 24px;
  padding: 0 8px;
  border: 1px solid rgba(214, 154, 45, 0.22);
  border-radius: 999px;
  background: rgba(214, 154, 45, 0.08);
  color: var(--accent-hover);
  font-size: .68rem;
  font-weight: 800;
  letter-spacing: .02em;
}
.tooling-github-card {
  justify-content: flex-start;
}

.timeline { display: grid; gap: 16px; }
.timeline article { display: grid; grid-template-columns: 170px minmax(0, 1fr); gap: 18px; }
.timeline time { font-size: 1.15rem; }
.timeline article > div { padding: 22px; }
.no-js .experience-details[hidden] {
  display: none;
}
.experience-details {
  overflow: hidden;
  max-height: 0;
  opacity: 0;
  transition: max-height .42s cubic-bezier(.4, 0, .2, 1), opacity .28s ease;
}
.experience-details.is-open {
  max-height: 1200px;
  opacity: 1;
}
.experience-toggle {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 14px;
  padding: 8px 14px;
  border: 1px solid rgba(214, 154, 45, 0.28);
  border-radius: 999px;
  background: rgba(214, 154, 45, 0.06);
  color: var(--accent);
  font-size: .88rem;
  transition: border-color .18s ease, background .18s ease, color .18s ease, transform .18s ease;
}
.experience-toggle::after {
  content: "↓";
  font-size: .75rem;
  transition: transform .28s ease;
}
.experience-toggle[aria-expanded="true"]::after {
  transform: rotate(180deg);
}
.experience-toggle:hover {
  border-color: rgba(214, 154, 45, 0.45);
  background: rgba(214, 154, 45, 0.12);
  color: var(--accent-hover);
}
button {
  width: fit-content;
  padding: 0;
  border: 0;
  background: transparent;
  color: var(--accent);
  cursor: pointer;
  font: 700 1rem var(--sans);
}
.project-link {
  display: inline-flex;
  width: fit-content;
  margin-top: 14px;
  color: var(--accent);
  font-weight: 700;
}
.project-actions {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 14px;
}
.project-actions .project-link {
  margin-top: 0;
}
.project-demo-slot {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  padding: 0 10px;
  border: 1px dashed rgba(214, 154, 45, 0.35);
  border-radius: 999px;
  color: var(--muted);
  font-size: .78rem;
  font-weight: 800;
  letter-spacing: .02em;
  text-transform: uppercase;
}
.project-stack {
  margin-top: auto;
  padding-top: 12px;
  color: var(--accent);
  font-size: .9rem;
  font-weight: 700;
  line-height: 1.35;
}
.cards.three > article > h3 {
  min-height: 3.4rem;
}
.cards.three .project-stack {
  min-height: 2.75em;
}
.cards.three .project-badges {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 6px;
  margin-top: 12px;
  min-height: 28px;
}
.cards.three .project-badges span {
  justify-content: center;
  max-width: 100%;
  padding: 0 6px;
  overflow: hidden;
  font-size: .68rem;
  text-align: center;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.project-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 12px;
}
.project-badges span {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  padding: 0 10px;
  border: 1px solid rgba(214, 154, 45, 0.22);
  border-radius: 999px;
  background: rgba(214, 154, 45, 0.08);
  color: var(--accent-hover);
  font-size: .75rem;
  font-weight: 800;
  letter-spacing: .02em;
}
.project-link:hover {
  color: var(--accent-hover);
}

.contact { padding-bottom: var(--section-space); }
.contact-card {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(280px, 0.82fr);
  align-items: center;
  gap: 26px;
  max-width: 920px;
  padding: 26px;
}
.contact-copy {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 12px;
}
.contact-card p {
  max-width: 560px;
  margin: 0;
  color: var(--muted);
  line-height: 1.7;
}
.contact-card .contact-lead {
  color: var(--text);
  font-size: clamp(1.25rem, 2.3vw, 1.8rem);
  font-weight: 700;
  letter-spacing: -.03em;
  line-height: 1.22;
}
.contact-cta { margin-top: 8px; }
.contact-list {
  display: grid;
  gap: 10px;
  margin: 0;
}
.contact-list div {
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--panel-muted);
}
.contact-list dt {
  color: var(--muted);
  font-size: .76rem;
  font-weight: 700;
  letter-spacing: .06em;
  text-transform: uppercase;
}
.contact-list dd {
  margin: 6px 0 0;
  color: var(--text);
  word-break: break-word;
}
.contact-list a { color: var(--accent); }
.contact-list a:hover { color: var(--accent-hover); }

@keyframes marquee {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}

@keyframes float-glow {
  from { transform: translate3d(-2rem, -1rem, 0) scale(1); }
  to { transform: translate3d(3rem, 2.5rem, 0) scale(1.14); }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .marquee-track { animation: none; }
  .glow { animation: none; }
  .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }
  .experience-details {
    transition: none;
  }
}

@media (max-width: 980px) {
  .header { flex-wrap: wrap; border-radius: 28px; margin-bottom: 24px; }
  .header-link { display: none; }
  .nav-toggle { display: inline-flex; }
  nav {
    order: 10;
    display: none;
    width: 100%;
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    padding: 12px 0 0;
    border: 0;
    border-top: 1px solid var(--line);
    border-radius: 0;
    background: transparent;
  }
  nav a { width: 100%; padding: 10px 4px; border-bottom: 1px solid var(--line); }
  nav a:last-child { border-bottom: 0; }
  nav a::before { display: none; }
  .header.nav-open nav { display: flex; }
  .hero, .three, .offensive-tooling-grid, .contact-card { grid-template-columns: 1fr; }
  .hero { min-height: auto; padding-top: 18px; }
  .hero-card { min-height: auto; }
  .two, .four { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 680px) {
  :root { --section-space: 26px; }
  .header, main, .section { width: min(100% - 22px, 1380px); }
  .header { margin-top: 8px; margin-bottom: 12px; }
  nav { justify-content: flex-start; gap: 12px; }
  h1 { font-size: clamp(4rem, 20vw, 6.5rem); }
  .two, .four, .tooling-list, .timeline article { grid-template-columns: 1fr; }
  .section { scroll-margin-top: 62px; }
  .hero { padding-top: 8px; }
  .hero-card,
  .cards article,
  .timeline article > div,
  .contact-card { padding: 16px; }
}

.back-to-top {
  position: fixed;
  bottom: 28px;
  right: 28px;
  z-index: 20;
  display: grid;
  width: 42px;
  height: 42px;
  place-items: center;
  border: 1px solid rgba(214, 154, 45, 0.35);
  border-radius: 12px;
  background: var(--card-soft);
  color: var(--accent);
  cursor: pointer;
  backdrop-filter: blur(12px);
  box-shadow: 0 8px 24px var(--shadow);
  opacity: 0;
  pointer-events: none;
  transform: translateY(8px);
  transition: opacity .25s ease, transform .25s ease, border-color .18s ease;
}
.back-to-top.is-visible { opacity: 1; pointer-events: auto; transform: translateY(0); }
.back-to-top:hover { border-color: var(--accent-hover); }
.back-to-top svg {
  width: 18px;
  height: 18px;
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.site-footer {
  width: min(1380px, calc(100% - 32px));
  margin: 0 auto;
  padding: 22px 0 36px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: .85rem;
  text-align: center;
}
.site-footer p { margin: 0; }
.site-footer a { color: var(--accent); }
.site-footer a:hover { color: var(--accent-hover); }