@import url('https://fonts.googleapis.com/css2?family=Archivo:wght@400;600;800&display=swap');

:root {
  --color-bg: #f1efeb;
  --color-text: #201e1d;
  --color-accent: #ec3013;
  --color-accent-200: color-mix(in srgb, var(--color-accent) 24%, white);
  --color-accent-300: color-mix(in srgb, var(--color-accent) 40%, white);
  --color-accent-700: color-mix(in srgb, var(--color-accent) 72%, black);
  --font-heading: "Archivo", system-ui, sans-serif;
  --font-heading-weight: 800;
  --font-body: "Archivo", system-ui, sans-serif;
}

* , *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  margin: 0;
  text-wrap: pretty;
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.55;
}

h1, h2, h3, h4 { font-family: var(--font-heading); font-weight: var(--font-heading-weight); margin: 0; }

a { color: var(--color-accent-700); }
a:hover { color: var(--color-accent); }
::selection { background: var(--color-accent-200); }

.mono { font-family: ui-monospace, Menlo, Consolas, monospace; }

.wrap {
  max-width: 1180px;
  margin: 0 auto;
  padding-inline: clamp(20px, 5vw, 64px);
}

.grid-bg {
  background: var(--color-bg);
  background-image:
    repeating-linear-gradient(0deg, rgba(32,30,29,.055) 0 1px, transparent 1px 24px),
    repeating-linear-gradient(90deg, rgba(32,30,29,.055) 0 1px, transparent 1px 24px),
    radial-gradient(circle, rgba(32,30,29,.13) 1.4px, transparent 1.5px);
  background-size: 24px 24px, 24px 24px, 96px 96px;
  min-height: 100vh;
}

/* — nav — */
.nav {
  position: sticky;
  top: 0;
  z-index: 30;
  background: var(--color-bg);
  border-bottom: 2px solid var(--color-text);
  padding-inline: clamp(20px, 5vw, 64px);
}
.nav-inner {
  max-width: 1180px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 62px;
}
.nav-brand { display: flex; align-items: baseline; gap: 12px; }
.nav-brand .name { font-family: var(--font-heading); font-weight: var(--font-heading-weight); font-size: 16px; letter-spacing: -0.01em; }
.nav-brand .tag { font-size: 10.5px; letter-spacing: .12em; text-transform: uppercase; color: color-mix(in srgb, var(--color-text) 45%, transparent); }
.nav-links { display: flex; align-items: center; gap: 28px; }
.navlink {
  text-decoration: none;
  transition: color .2s ease;
  font-size: 11.5px;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--color-text);
}
.navlink.active { color: var(--color-accent-700); }

@media (max-width: 640px) {
  .nav-inner {
    position: relative;
    height: auto;
    flex-wrap: wrap;
    row-gap: 10px;
    padding-block: 12px;
    padding-right: 96px;
  }
  .nav-brand .tag { display: none; }
  .nav-links { gap: 14px; flex-wrap: wrap; row-gap: 8px; }
  .navlink { font-size: 10px; letter-spacing: .06em; }
  .nav-links .btn-primary {
    position: absolute;
    top: 12px;
    right: 0;
    padding: 7px 10px;
    font-size: 12px;
  }
}

/* — buttons — */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  cursor: pointer; text-decoration: none;
  font-family: var(--font-heading); font-weight: var(--font-heading-weight);
  font-size: 14px; line-height: 1.2; color: var(--color-text);
  background: transparent; border: 1px solid transparent;
  padding: 8px 14px;
}
.btn-primary { background: var(--color-accent); color: var(--color-bg); }
.btn-primary:hover { background: var(--color-accent-700); color: var(--color-bg); }
.btn-ghost { color: var(--color-accent-700); border-color: currentColor; }
.btn-ghost:hover { background: color-mix(in srgb, var(--color-accent) 10%, transparent); }

/* — hero — */
#hero { position: relative; padding: 64px 0 0; }
.sheet-label { display: flex; align-items: baseline; gap: 14px; margin-bottom: 22px; }
.sheet-label .rule { flex: 1; border-top: 1px solid color-mix(in srgb, var(--color-text) 22%, transparent); }
.sheet-label .kicker { font-size: 11px; letter-spacing: .12em; text-transform: uppercase; color: var(--color-accent-700); }
.sheet-label .scale { font-size: 11px; color: color-mix(in srgb, var(--color-text) 50%, transparent); }

.hero-title {
  font-size: clamp(48px, 8vw, 92px);
  line-height: 0.98;
  letter-spacing: -0.03em;
  position: relative;
  z-index: 2;
  pointer-events: none;
}
.hero-title.accent { color: var(--color-accent-700); z-index: 3; margin-bottom: 26px; }

.cube-wrap {
  position: absolute; right: 2%; top: 150px; width: 230px; height: 230px;
  perspective: 900px; z-index: 1;
  pointer-events: auto;
}
.cube-wrap .dashed { position: absolute; inset: -30px; border: 1px dashed color-mix(in srgb, var(--color-text) 28%, transparent); }
.cube-wrap .line-top { position: absolute; left: -30px; right: -30px; top: -44px; border-top: 1px solid color-mix(in srgb, var(--color-text) 38%, transparent); }
.cube-wrap .tick-l { position: absolute; left: -30px; top: -50px; height: 12px; border-left: 1px solid color-mix(in srgb, var(--color-text) 38%, transparent); }
.cube-wrap .tick-r { position: absolute; right: -30px; top: -50px; height: 12px; border-right: 1px solid color-mix(in srgb, var(--color-text) 38%, transparent); }
.cube-wrap .dim-label {
  position: absolute; left: 50%; top: -56px; transform: translateX(-50%);
  background: var(--color-bg); padding: 0 7px; font-size: 10px;
  color: color-mix(in srgb, var(--color-text) 55%, transparent);
}
.cube-wrap .det-label {
  position: absolute; right: -30px; bottom: -58px;
  background: var(--color-bg); padding: 0 7px; font-size: 10px;
  color: color-mix(in srgb, var(--color-text) 55%, transparent);
}
.cube {
  position: relative; width: 130px; height: 130px; margin: 50px auto 0;
  transform-style: preserve-3d;
  transform: rotateX(-20deg) rotateY(-34deg);
  transition: transform .1s linear;
}
.cube .face {
  position: absolute; inset: 0;
  border: 1px dashed transparent;
  transition: background 1.6s ease, border-color 1.6s ease, box-shadow 1.6s ease;
}
.cube .face-front { background: var(--color-accent); transform: translateZ(65px); box-shadow: 0 14px 20px rgba(32,30,29,.20); }
.cube .face-side { background: var(--color-accent-700); transform: rotateY(90deg) translateZ(65px); }
.cube .face-top { background: var(--color-accent-300); transform: rotateX(90deg) translateZ(65px); }

.cube-wrap.cube-active .face-front { background: color-mix(in srgb, var(--color-accent) 6%, transparent); border-color: var(--color-accent); box-shadow: none; }
.cube-wrap.cube-active .face-side  { background: color-mix(in srgb, var(--color-accent) 6%, transparent); border-color: var(--color-accent-700); }
.cube-wrap.cube-active .face-top   { background: color-mix(in srgb, var(--color-accent) 6%, transparent); border-color: var(--color-accent-300); }

.cube-anno {
  position: absolute;
  left: 0;
  top: 0;
  width: 0;
  height: 0;
  opacity: 0;
  transition: opacity 1.6s ease;
  pointer-events: none;
  z-index: 5;
}
.cube-wrap.cube-active .cube-anno { opacity: 1; }
.cube-wrap.cube-active .anno-tol { transition-delay: .15s; }
.cube-wrap.cube-active .anno-rev { transition-delay: .3s; }

.anno-leg { position: absolute; }
.anno-leg.horiz { border-top: 1px dashed color-mix(in srgb, var(--color-text) 45%, transparent); height: 0; }
.anno-leg.vert  { border-left: 1px dashed color-mix(in srgb, var(--color-text) 45%, transparent); width: 0; }

.anno-box {
  position: absolute;
  background: var(--color-bg);
  border: 1px solid var(--color-text);
  box-shadow: 3px 3px 0 var(--color-text);
  padding: 6px 10px;
  font-size: 11px;
  white-space: nowrap;
  display: flex;
  align-items: baseline;
  gap: 6px;
}
.anno-box .anno-k {
  text-transform: uppercase;
  letter-spacing: .08em;
  font-size: 9.5px;
  color: color-mix(in srgb, var(--color-text) 50%, transparent);
}
.anno-box .anno-v { color: color-mix(in srgb, var(--color-text) 80%, transparent); }

@media (max-width: 900px) {
  .cube-anno { display: none; }
}

@media (max-width: 700px) {
  .cube-wrap {
    position: static;
    margin: 8px auto 40px;
    transform: scale(0.72);
    transform-origin: top center;
  }
  .cube-wrap .dim-label,
  .cube-wrap .det-label {
    display: none;
  }
}

.hero-intro {
  font-size: 17px; line-height: 28px;
  color: color-mix(in srgb, var(--color-text) 68%, transparent);
  max-width: 46ch; margin: 0 0 34px; position: relative; z-index: 3;
}
.hero-actions { display: flex; gap: 12px; flex-wrap: wrap; position: relative; z-index: 3; padding-bottom: 56px; }

/* — meta strip — */
.meta-strip { border-top: 2px solid var(--color-text); border-bottom: 2px solid var(--color-text); }
.meta-grid {
  max-width: 1180px; margin: 0 auto; padding-inline: clamp(20px, 5vw, 64px);
  display: grid; grid-template-columns: 1.4fr 2.2fr 1fr 1fr;
}
.meta-cell { padding: 16px 20px 18px; border-right: 1px solid color-mix(in srgb, var(--color-text) 25%, transparent); }
.meta-cell:first-child { padding-left: 0; }
.meta-cell:last-child { border-right: none; padding-right: 0; }
.meta-cell .label { font-size: 10.5px; text-transform: uppercase; letter-spacing: .1em; color: color-mix(in srgb, var(--color-text) 45%, transparent); margin: 0 0 5px; }
.meta-cell .value { font-size: 13.5px; margin: 0; }
.meta-cell .value.accent { color: var(--color-accent-700); }

@media (max-width: 720px) {
  .meta-grid { grid-template-columns: repeat(2, 1fr); }
  .meta-cell { border-right: none; border-bottom: 1px solid color-mix(in srgb, var(--color-text) 25%, transparent); padding: 14px 0; }
}

/* — reveal sections — */
.reveal {
  opacity: 0; transform: translateY(24px);
  transition: opacity .9s cubic-bezier(.16,1,.3,1), transform .9s cubic-bezier(.16,1,.3,1);
}
.reveal.in { opacity: 1; transform: translateY(0); }

section { padding: 88px 0; }
section.bordered { border-top: 2px solid var(--color-text); }

.section-title {
  font-size: 34px; line-height: 1.18; letter-spacing: -0.015em; margin: 0 0 36px;
}

/* — about — */
#about { display: grid; grid-template-columns: minmax(0,5fr) minmax(0,7fr); gap: 60px; align-items: center; }
@media (max-width: 800px) { #about { grid-template-columns: 1fr; } }

.photo-frame { position: relative; }
.photo-frame .dashed { position: absolute; inset: -14px; border: 1px dashed color-mix(in srgb, var(--color-text) 26%, transparent); }
.photo-frame figure {
  margin: 0; position: relative;
  aspect-ratio: 4/5; width: 100%; overflow: hidden;
  background: color-mix(in srgb, var(--color-text) 8%, transparent);
  display: flex; align-items: center; justify-content: center;
}
.photo-frame figure img { width: 100%; height: 100%; object-fit: cover; }
.photo-frame figure .placeholder { font-size: 13px; color: color-mix(in srgb, var(--color-text) 45%, transparent); text-align: center; padding: 20px; }
.photo-frame .caption {
  position: absolute; left: -14px; bottom: -32px;
  background: var(--color-bg); padding: 0 7px; font-size: 10px;
  color: color-mix(in srgb, var(--color-text) 55%, transparent);
}
.about-copy p {
  font-size: 15.5px; line-height: 28px;
  color: color-mix(in srgb, var(--color-text) 70%, transparent);
  max-width: 52ch; margin: 0 0 20px;
}
.about-copy p:last-child { margin-bottom: 0; }

/* — stack — */
.tech-row {
  display: grid; grid-template-columns: minmax(80px,150px) minmax(0,1fr);
  gap: 28px; padding: 26px 0; border-top: 1px solid color-mix(in srgb, var(--color-text) 25%, transparent);
}
.tech-row .code { font-size: 11px; letter-spacing: .1em; text-transform: uppercase; color: color-mix(in srgb, var(--color-text) 55%, transparent); margin: 4px 0 0; }
.tech-row .group-name { font-family: var(--font-heading); font-weight: var(--font-heading-weight); font-size: 17px; margin: 0 0 14px; }
.chip-row { display: flex; flex-wrap: wrap; gap: 10px; }
.chip {
  display: inline-flex; align-items: center; font-size: 13px; padding: 8px 16px;
  border: 1px dashed color-mix(in srgb, var(--color-text) 32%, transparent);
  color: color-mix(in srgb, var(--color-text) 55%, transparent);
  transition: border-color .25s ease, color .25s ease, transform .25s ease;
}
.chip:hover { border-color: var(--color-accent); color: var(--color-accent-700); transform: translateY(-2px); }

@media (max-width: 600px) {
  .tech-row { grid-template-columns: 1fr; gap: 8px; }
}

/* — projects — */
.proj-row {
  display: grid; grid-template-columns: minmax(80px,150px) minmax(0,300px) minmax(0,1fr);
  gap: 28px; align-items: start; padding: 34px 16px;
  border-top: 1px solid color-mix(in srgb, var(--color-text) 25%, transparent);
  margin: 0 -16px;
  transition: background .25s ease;
}
.proj-row:hover { background: color-mix(in srgb, var(--color-text) 4%, transparent); }
.proj-row .num { font-size: 11px; letter-spacing: .1em; text-transform: uppercase; color: color-mix(in srgb, var(--color-text) 55%, transparent); margin: 5px 0 0; }
.proj-row h3 { font-size: 22px; letter-spacing: -0.01em; }
.proj-row .desc { font-size: 15px; line-height: 26px; color: color-mix(in srgb, var(--color-text) 70%, transparent); max-width: 56ch; margin: 0 0 16px; }
.proj-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 16px; }
.tag-outline {
  display: inline-flex; align-items: center; font-size: 11px;
  letter-spacing: 0.02em; padding: 3px 10px;
  border: 1px solid var(--color-accent); color: var(--color-accent-700);
}
.proj-links { display: flex; gap: 20px; }
.proj-links a { font-size: 12px; letter-spacing: .06em; text-transform: uppercase; text-decoration: none; }

@media (max-width: 800px) {
  .proj-row { grid-template-columns: 1fr; gap: 10px; }
}

/* — contact — */
#contact { background: var(--color-accent); color: var(--color-bg); }
#contact .wrap { padding-block: 92px; }
#contact .kicker { display: block; font-size: 11px; letter-spacing: .12em; text-transform: uppercase; opacity: .75; margin-bottom: 20px; }
#contact h2 { font-size: clamp(34px, 5vw, 60px); line-height: 1.04; letter-spacing: -0.02em; margin: 0 0 34px; max-width: 16ch; }
#contact .btn-ghost { color: var(--color-bg); border-color: var(--color-bg); }
#contact .btn-ghost:hover { background: color-mix(in srgb, var(--color-bg) 12%, transparent); }

/* — footer — */
footer .wrap { padding: 22px clamp(20px,5vw,64px); display: flex; justify-content: space-between; flex-wrap: wrap; gap: 8px; }
footer span { font-size: 10.5px; letter-spacing: .08em; text-transform: uppercase; color: color-mix(in srgb, var(--color-text) 45%, transparent); }