:root {
  --background: #f3ede1;
  --background-strong: #ece3d2;
  --surface: rgba(255, 251, 243, 0.72);
  --surface-strong: rgba(255, 250, 240, 0.92);
  --ink: #171512;
  --ink-soft: #4d493f;
  --border: rgba(23, 21, 18, 0.14);
  --accent: #875b39;
  --accent-soft: rgba(135, 91, 57, 0.14);
  --shadow: 0 24px 70px rgba(53, 40, 24, 0.12);
  --max-width: 1180px;
  --radius-large: 28px;
  --radius-medium: 18px;
  --radius-small: 999px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Noto Sans SC", sans-serif;
  color: var(--ink);
  background:
    radial-gradient(circle at top left, rgba(168, 128, 88, 0.12), transparent 34%),
    radial-gradient(circle at 85% 12%, rgba(113, 95, 73, 0.1), transparent 26%),
    linear-gradient(180deg, #f6f1e7 0%, #f1eadc 48%, #efe6d5 100%);
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(23, 21, 18, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(23, 21, 18, 0.03) 1px, transparent 1px);
  background-size: 36px 36px;
  mask-image: radial-gradient(circle at center, black 32%, transparent 88%);
  opacity: 0.34;
}

a {
  color: inherit;
  text-decoration: none;
}

button,
input,
textarea,
select {
  font: inherit;
}

.page-shell {
  position: relative;
  z-index: 1;
  width: min(calc(100% - 2rem), var(--max-width));
  margin: 0 auto;
  padding: 1.25rem 0 4rem;
}

.site-header {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 1.5rem;
  padding: 1rem 1.2rem;
  margin: 0.5rem 0 3rem;
  background: rgba(255, 251, 244, 0.72);
  border: 1px solid var(--border);
  border-radius: var(--radius-large);
  backdrop-filter: blur(18px);
  box-shadow: var(--shadow);
}

.brand {
  font-family: "Noto Serif SC", serif;
  font-size: clamp(1.2rem, 1.7vw, 1.5rem);
  letter-spacing: -0.02em;
}

.site-nav {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 1.1rem;
  font-size: 0.92rem;
  color: var(--ink-soft);
}

.site-nav a {
  position: relative;
  padding-bottom: 0.1rem;
}

.site-nav a::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -0.12rem;
  height: 1px;
  background: var(--ink);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 180ms ease;
}

.site-nav a:hover::after,
.site-nav a:focus-visible::after {
  transform: scaleX(1);
}

.language-switch {
  display: inline-flex;
  padding: 0.3rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-small);
  background: rgba(255, 255, 255, 0.5);
}

.language-button {
  border: 0;
  background: transparent;
  padding: 0.45rem 0.8rem;
  border-radius: var(--radius-small);
  cursor: pointer;
  color: var(--ink-soft);
  transition: background-color 180ms ease, color 180ms ease;
}

.language-button.is-active {
  background: var(--ink);
  color: #f6f1e7;
}

.hero,
.section,
.site-footer {
  margin-top: 1.5rem;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.45fr) minmax(280px, 0.85fr);
  gap: 1.5rem;
  align-items: stretch;
}

.hero-copy,
.hero-panel,
.principles-card,
.project-card,
.writing-section,
.contact-card,
.site-footer {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-large);
  box-shadow: var(--shadow);
  backdrop-filter: blur(18px);
}

.hero-copy {
  padding: clamp(2rem, 5vw, 4rem);
}

.hero-panel {
  padding: 1.8rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.eyebrow,
.panel-kicker,
.project-type,
.stack-label,
.contact-label {
  margin: 0;
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-soft);
}

.hero h1,
.section-heading h2 {
  margin: 0;
  font-family: "Noto Serif SC", serif;
  font-weight: 600;
  letter-spacing: -0.03em;
  line-height: 1.02;
}

.hero h1 {
  max-width: 10.5ch;
  font-size: clamp(2.35rem, 5.8vw, 4.3rem);
}

.hero-text,
.prose p,
.project-card p,
.writing-copy,
.site-footer p {
  color: var(--ink-soft);
  line-height: 1.72;
}

.hero-text {
  max-width: 54ch;
  font-size: 1rem;
  margin: 1.2rem 0 0;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
  margin-top: 2rem;
}

.primary-link,
.secondary-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 152px;
  padding: 0.95rem 1.2rem;
  border-radius: var(--radius-small);
  transition: transform 180ms ease, background-color 180ms ease, border-color 180ms ease;
}

.primary-link {
  background: var(--ink);
  color: #f6f1e7;
}

.secondary-link {
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.54);
}

.primary-link:hover,
.secondary-link:hover,
.contact-card:hover,
.project-card:hover {
  transform: translateY(-2px);
}

.panel-list,
.principles-list {
  margin: 1rem 0 0;
  padding-left: 1.1rem;
  color: var(--ink);
  display: grid;
  gap: 0.8rem;
}

.section {
  padding: clamp(1.8rem, 4vw, 2.8rem);
  background: rgba(255, 251, 244, 0.54);
  border: 1px solid var(--border);
  border-radius: calc(var(--radius-large) + 4px);
  box-shadow: var(--shadow);
  backdrop-filter: blur(18px);
}

.section-heading {
  display: grid;
  gap: 0.8rem;
  margin-bottom: 1.8rem;
}

.section-heading h2 {
  max-width: 12ch;
  font-size: clamp(1.75rem, 3.8vw, 2.85rem);
}

.section-grid,
.stack-grid {
  display: grid;
  gap: 1.5rem;
}

.section-grid {
  grid-template-columns: minmax(0, 1.15fr) minmax(280px, 0.85fr);
}

.prose {
  max-width: 62ch;
}

.principles-card {
  padding: 1.5rem;
}

.project-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.2rem;
}

.project-card {
  padding: 1.5rem;
  display: grid;
  gap: 1rem;
}

.project-card h3 {
  margin: 0;
  font-size: 1.18rem;
  letter-spacing: -0.03em;
}

.project-card a {
  display: inline-flex;
  width: fit-content;
  padding-bottom: 0.15rem;
  border-bottom: 1px solid currentColor;
}

.stack-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.stack-column {
  display: grid;
  gap: 0.9rem;
}

.chip-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.chip {
  display: inline-flex;
  align-items: center;
  padding: 0.68rem 0.92rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-small);
  background: rgba(255, 252, 247, 0.8);
}

.writing-section {
  padding: clamp(1.8rem, 4vw, 2.8rem);
}

.writing-copy {
  max-width: 58ch;
}

.contact-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
}

.contact-card {
  padding: 1.35rem;
  display: grid;
  gap: 0.55rem;
}

.contact-value {
  font-size: 1.05rem;
}

.site-footer {
  padding: 1.35rem 1.5rem;
}

.js [data-reveal] {
  opacity: 0;
  transform: translateY(28px);
  transition:
    opacity 520ms ease,
    transform 520ms ease;
}

.js [data-reveal].is-visible {
  opacity: 1;
  transform: translateY(0);
}

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

  *,
  *::before,
  *::after {
    animation: none !important;
    transition: none !important;
  }

  [data-reveal] {
    opacity: 1;
    transform: none;
  }
}

@media (max-width: 960px) {
  .site-header,
  .hero,
  .section-grid,
  .stack-grid,
  .contact-grid {
    grid-template-columns: 1fr;
  }

  .site-header {
    justify-items: start;
  }

  .site-nav {
    justify-content: flex-start;
  }

  .hero h1,
  .section-heading h2 {
    max-width: none;
  }

  .project-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .page-shell {
    width: min(calc(100% - 1rem), var(--max-width));
    padding-bottom: 2rem;
  }

  .site-header,
  .hero-copy,
  .hero-panel,
  .section,
  .writing-section,
  .site-footer {
    border-radius: 22px;
  }

  .hero-copy,
  .section,
  .writing-section {
    padding: 1.35rem;
  }

  .hero h1 {
    font-size: clamp(2.1rem, 10vw, 2.95rem);
  }

  .section-heading h2 {
    font-size: clamp(1.65rem, 7.5vw, 2.2rem);
  }

  .hero-actions,
  .language-switch {
    width: 100%;
  }

  .primary-link,
  .secondary-link {
    flex: 1 1 100%;
  }
}