:root {
  --brand: #b03931;
  --brand-deep: #8a2c26;
  --ink: #1a1412;
  --ink-soft: #4a3f3b;
  --paper: #f3f1ef;
  --paper-2: #e8e4e0;
  --line: color-mix(in srgb, var(--ink) 12%, transparent);
  --font-display: "Bricolage Grotesque", "Segoe UI", sans-serif;
  --font-body: "IBM Plex Sans", "Segoe UI", sans-serif;
  --max: 42rem;
  --wide: 52rem;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 1.0625rem;
  line-height: 1.6;
  background: var(--paper);
  overflow-x: hidden;
}

a {
  color: var(--brand-deep);
  text-underline-offset: 0.15em;
}

a:hover {
  color: var(--brand);
}

.atmosphere {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background:
    radial-gradient(ellipse 90% 55% at 12% -10%, color-mix(in srgb, var(--brand) 28%, transparent), transparent 60%),
    radial-gradient(ellipse 70% 45% at 100% 8%, color-mix(in srgb, var(--brand) 14%, transparent), transparent 55%),
    linear-gradient(180deg, var(--paper) 0%, var(--paper-2) 45%, var(--paper) 100%);
  animation: atmosphere-drift 18s ease-in-out infinite alternate;
}

@keyframes atmosphere-drift {
  from {
    transform: scale(1) translate3d(0, 0, 0);
  }
  to {
    transform: scale(1.04) translate3d(-1.5%, 1%, 0);
  }
}

.hero {
  max-width: var(--wide);
  margin: 0 auto;
  padding: clamp(2.5rem, 8vw, 5.5rem) clamp(1.25rem, 4vw, 2rem) clamp(3rem, 8vw, 5rem);
  min-height: 100svh;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.hero__brand {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1.75rem;
  animation: rise 0.8s ease-out both;
}

.hero__mark {
  display: block;
  width: clamp(4.5rem, 12vw, 6rem);
  height: auto;
  border-radius: 1.15rem;
  box-shadow: 0 18px 40px color-mix(in srgb, var(--brand) 28%, transparent);
  animation: mark-settle 1.1s cubic-bezier(0.22, 1, 0.36, 1) both;
}

.hero__name {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(1.35rem, 3.5vw, 1.85rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.1;
}

.hero__headline {
  margin: 0 0 1rem;
  max-width: 16ch;
  font-family: var(--font-display);
  font-size: clamp(2.35rem, 7vw, 3.75rem);
  font-weight: 800;
  letter-spacing: -0.045em;
  line-height: 1.05;
  animation: rise 0.9s ease-out 0.08s both;
}

.hero__lede {
  margin: 0 0 1.75rem;
  max-width: 36rem;
  color: var(--ink-soft);
  font-size: clamp(1.05rem, 2.2vw, 1.2rem);
  animation: rise 0.9s ease-out 0.16s both;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1rem;
  animation: rise 0.9s ease-out 0.24s both;
}

@keyframes rise {
  from {
    opacity: 0;
    transform: translateY(1rem);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes mark-settle {
  from {
    opacity: 0;
    transform: translateY(0.75rem) scale(0.92);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 2.75rem;
  padding: 0.65rem 1.2rem;
  border-radius: 0.35rem;
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  text-decoration: none;
  transition: background 0.18s ease, color 0.18s ease, border-color 0.18s ease, transform 0.18s ease;
}

.btn:hover {
  transform: translateY(-1px);
}

.btn--primary {
  background: var(--brand);
  color: #fff;
}

.btn--primary:hover {
  background: var(--brand-deep);
  color: #fff;
}

.btn--ghost {
  background: transparent;
  color: var(--ink);
  border: 1px solid var(--line);
}

.btn--ghost:hover {
  border-color: color-mix(in srgb, var(--brand) 55%, var(--line));
  color: var(--brand-deep);
}

.section {
  max-width: var(--max);
  margin: 0 auto;
  padding: clamp(2.5rem, 6vw, 4rem) clamp(1.25rem, 4vw, 2rem);
}

.section.projects {
  max-width: var(--wide);
}

.section h2 {
  margin: 0 0 0.75rem;
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 3.5vw, 2rem);
  font-weight: 800;
  letter-spacing: -0.035em;
}

.section__lede {
  margin: 0 0 1.5rem;
  color: var(--ink-soft);
  max-width: 40rem;
}

.principles {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 1.25rem;
}

.principles li {
  padding-top: 1.25rem;
  border-top: 1px solid var(--line);
}

.principles strong {
  display: block;
  margin-bottom: 0.35rem;
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--ink);
}

.project-list {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line);
}

.project-list li {
  border-bottom: 1px solid var(--line);
}

.project-list a {
  display: grid;
  grid-template-columns: minmax(9rem, 14rem) 1fr;
  gap: 0.75rem 1.5rem;
  padding: 1rem 0.15rem;
  text-decoration: none;
  color: inherit;
  transition: background 0.15s ease, padding-left 0.15s ease;
}

.project-list a:hover {
  background: color-mix(in srgb, var(--brand) 6%, transparent);
  padding-left: 0.4rem;
  color: inherit;
}

.project-list__name {
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--brand-deep);
}

.project-list a:hover .project-list__name {
  color: var(--brand);
}

.project-list__desc {
  color: var(--ink-soft);
}

.docs-cta {
  padding-bottom: clamp(3rem, 8vw, 5rem);
}

.footer {
  max-width: var(--wide);
  margin: 0 auto;
  padding: 1.5rem clamp(1.25rem, 4vw, 2rem) 2.5rem;
  border-top: 1px solid var(--line);
  color: var(--ink-soft);
  font-size: 0.95rem;
}

.footer p {
  margin: 0;
}

.footer a {
  color: var(--ink-soft);
}

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

@media (max-width: 640px) {
  .project-list a {
    grid-template-columns: 1fr;
    gap: 0.25rem;
  }
}

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

  .atmosphere,
  .hero__brand,
  .hero__mark,
  .hero__headline,
  .hero__lede,
  .hero__actions {
    animation: none;
  }

  .btn:hover,
  .project-list a:hover {
    transform: none;
  }
}