*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --bg: #080808;
  --fg: #f0ede8;
  --accent: #ccff00;
  --muted: #444;
  --font: 'Space Grotesk', sans-serif;
}

html {
  scroll-behavior: smooth;
}

body {
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.5;
  overflow-x: hidden;
  min-height: 100vh;
}

/* ── Grain overlay ── */
#grain {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 100;
  opacity: 0.035;
}

/* ── Nav ── */
nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 50;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.5rem 2.5rem;
  mix-blend-mode: normal;
}

.nav-logo {
  font-size: 1.1rem;
  font-weight: 700;
  letter-spacing: -0.03em;
  color: var(--accent);
}

.nav-links {
  display: flex;
  gap: 2rem;
}

.nav-links a {
  color: var(--muted);
  text-decoration: none;
  font-size: 0.8rem;
  font-weight: 400;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  transition: color 0.2s;
}

.nav-links a:hover {
  color: var(--fg);
}

/* ── Hero ── */
main {
  position: relative;
}

.hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 8rem 2.5rem 4rem;
  max-width: 1100px;
  margin: 0 auto;
}

h1 {
  font-size: clamp(4.5rem, 13vw, 11rem);
  font-weight: 700;
  letter-spacing: -0.04em;
  line-height: 0.92;
  margin-bottom: 2.5rem;
  display: flex;
  gap: 0;
}

.word {
  display: inline-block;
  overflow: hidden;
}

.accent {
  color: var(--accent);
}

.tagline {
  opacity: 0;
  transform: translateY(12px);
  transition: opacity 0.7s ease, transform 0.7s ease;
  max-width: 480px;
}

.tagline.visible {
  opacity: 1;
  transform: translateY(0);
}

.tagline p {
  font-size: clamp(1.1rem, 2vw, 1.35rem);
  font-weight: 300;
  color: #999;
  line-height: 1.6;
}

.cta {
  opacity: 0;
  transform: translateY(12px);
  transition: opacity 0.7s ease 0.2s, transform 0.7s ease 0.2s;
  margin-top: 2.5rem;
}

.cta.visible {
  opacity: 1;
  transform: translateY(0);
}

.btn {
  display: inline-block;
  padding: 0.9rem 2rem;
  border: 1px solid var(--accent);
  color: var(--accent);
  text-decoration: none;
  font-size: 0.85rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  transition: background 0.2s, color 0.2s;
}

.btn:hover {
  background: var(--accent);
  color: var(--bg);
}

/* ── Scroll marker ── */
.marker {
  position: absolute;
  bottom: 2.5rem;
  left: 50%;
  transform: translateX(-50%);
  color: var(--muted);
  font-size: 1.2rem;
  animation: bob 2s ease-in-out infinite;
  opacity: 0;
  transition: opacity 0.5s ease 1.8s;
}

.marker.visible {
  opacity: 1;
}

@keyframes bob {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50% { transform: translateX(-50%) translateY(8px); }
}

/* ── Principles ── */
.principles {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 0;
  border-top: 1px solid var(--muted);
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 2.5rem 8rem;
}

.principle {
  padding: 3.5rem 2rem 3.5rem 0;
  border-right: 1px solid var(--muted);
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.principle:last-child {
  border-right: none;
  padding-right: 0;
  padding-left: 2rem;
}

.principle:nth-child(2) {
  padding-left: 2rem;
}

.principle.visible {
  opacity: 1;
  transform: translateY(0);
}

.principle:nth-child(2).visible { transition-delay: 0.1s; }
.principle:nth-child(3).visible { transition-delay: 0.2s; }

.num {
  display: block;
  font-size: 0.7rem;
  letter-spacing: 0.15em;
  color: var(--accent);
  margin-bottom: 1.2rem;
  font-weight: 500;
}

.principle h2 {
  font-size: 2rem;
  font-weight: 700;
  letter-spacing: -0.03em;
  margin-bottom: 0.8rem;
}

.principle p {
  color: #777;
  font-size: 0.95rem;
  font-weight: 300;
  line-height: 1.65;
}

/* ── Projects ── */
.projects {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 2.5rem 8rem;
}

.section-title {
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  margin-bottom: 3rem;
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.section-title.visible {
  opacity: 1;
  transform: translateY(0);
}

.project-list {
  display: flex;
  flex-direction: column;
  border-top: 1px solid var(--muted);
}

.project {
  display: block;
  padding: 2.5rem 0;
  border-bottom: 1px solid var(--muted);
  text-decoration: none;
  color: var(--fg);
  transition: background 0.3s;
  position: relative;
  padding-left: 0;
  transition: padding-left 0.3s;
}

.project:hover {
  padding-left: 1.5rem;
}

.project .num {
  margin-bottom: 0.6rem;
}

.project h3 {
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 0.4rem;
  transition: color 0.2s;
}

.project:hover h3 {
  color: var(--accent);
}

.project p {
  color: #777;
  font-size: 0.95rem;
  font-weight: 300;
  line-height: 1.65;
}

.project {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease, padding-left 0.3s;
}

.project.visible {
  opacity: 1;
  transform: translateY(0);
}

.project:nth-child(2).visible { transition-delay: 0.1s; }
.project:nth-child(3).visible { transition-delay: 0.2s; }

/* ── Footer ── */
footer {
  border-top: 1px solid var(--muted);
  padding: 1.5rem 2.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.75rem;
  color: var(--muted);
  max-width: 100%;
}

footer div {
  display: flex;
  gap: 1.5rem;
}

footer a {
  color: var(--muted);
  text-decoration: none;
  transition: color 0.2s;
}

footer a:hover {
  color: var(--fg);
}

/* ── Subpages ── */
.subpage {
  min-height: 100vh;
  padding: 8rem 2.5rem 5rem;
  max-width: 720px;
  margin: 0 auto;
}

.subpage h1 {
  font-size: clamp(2.5rem, 6vw, 4rem);
  margin-bottom: 3rem;
  letter-spacing: -0.03em;
  line-height: 1;
}

.subpage h2 {
  font-size: 1rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  margin-top: 2.5rem;
  margin-bottom: 0.6rem;
}

.subpage p, .subpage address {
  color: #888;
  font-size: 0.95rem;
  font-style: normal;
  line-height: 1.75;
}

.subpage a {
  color: var(--fg);
}

.back-link {
  display: inline-block;
  margin-top: 3rem;
  color: var(--muted);
  text-decoration: none;
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  transition: color 0.2s;
}

.back-link:hover {
  color: var(--fg);
}

/* ── Responsive ── */
@media (max-width: 600px) {
  nav { padding: 1.2rem 1.5rem; }
  .hero { padding: 7rem 1.5rem 3rem; }
  .principles { padding: 0 1.5rem 5rem; }
  .principle { border-right: none; border-bottom: 1px solid var(--muted); padding: 2.5rem 0; }
  .principle:last-child { border-bottom: none; padding-left: 0; }
  .principle:nth-child(2) { padding-left: 0; }
  footer { padding: 1.2rem 1.5rem; flex-direction: column; gap: 0.8rem; text-align: center; }
  .subpage { padding: 7rem 1.5rem 4rem; }
  .projects { padding: 0 1.5rem 5rem; }
}