:root,
[data-theme="light"] {
  --text-xs: clamp(0.75rem, 0.72rem + 0.2vw, 0.875rem);
  --text-sm: clamp(0.9rem, 0.82rem + 0.2vw, 1rem);
  --text-base: clamp(1rem, 0.95rem + 0.2vw, 1.1rem);
  --text-lg: clamp(1.2rem, 1rem + 0.6vw, 1.6rem);
  --text-xl: clamp(1.8rem, 1.3rem + 1.5vw, 3rem);
  --text-2xl: clamp(2.8rem, 1.5rem + 4vw, 5.6rem);

  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;

  --color-bg: #f6f2eb;
  --color-surface: #fdfbf7;
  --color-surface-2: #efe7dc;
  --color-border: rgba(40, 37, 29, 0.12);
  --color-text: #211d18;
  --color-muted: #6d665d;
  --color-primary: #0d5c63;
  --color-primary-dark: #0a4348;
  --color-accent: #a66b2d;
  --color-code: #12263a;
  --color-code-soft: #dce8f7;
  --color-success: #537d42;
  --shadow-sm: 0 10px 30px rgba(39, 30, 21, 0.06);
  --shadow-lg: 0 24px 60px rgba(39, 30, 21, 0.12);
  --radius-sm: 0.75rem;
  --radius-md: 1.25rem;
  --radius-lg: 1.75rem;
  --content: 1180px;
  --font-body: 'Manrope', sans-serif;
  --font-display: 'Cormorant Garamond', serif;
}

[data-theme="dark"] {
  --color-bg: #111412;
  --color-surface: #171b18;
  --color-surface-2: #1c2320;
  --color-border: rgba(236, 230, 221, 0.12);
  --color-text: #f2ede4;
  --color-muted: #b5aea5;
  --color-primary: #72b7bb;
  --color-primary-dark: #56979b;
  --color-accent: #d6a56e;
  --color-code: #d9e9ff;
  --color-code-soft: #1a2734;
  --shadow-sm: 0 10px 30px rgba(0, 0, 0, 0.24);
  --shadow-lg: 0 24px 60px rgba(0, 0, 0, 0.35);
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  min-height: 100vh;
  font-family: var(--font-body);
  font-size: var(--text-base);
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
}
img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button, input, textarea { font: inherit; }
button { border: 0; background: none; cursor: pointer; }

.skip-link {
  position: absolute;
  left: -9999px;
  top: var(--space-4);
}
.skip-link:focus {
  left: var(--space-4);
  z-index: 100;
  background: var(--color-surface);
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-sm);
}

.container {
  width: min(calc(100% - 2rem), var(--content));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(14px);
  background: color-mix(in srgb, var(--color-bg) 85%, transparent);
  border-bottom: 1px solid var(--color-border);
}

.nav {
  min-height: 78px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
}

.brand {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}
.brand strong {
  display: block;
  font-size: var(--text-sm);
}
.brand span {
  color: var(--color-muted);
  font-size: var(--text-xs);
}
.brand-mark {
  width: 2.8rem;
  color: var(--color-primary);
}

.nav-links {
  display: flex;
  gap: var(--space-5);
  font-size: var(--text-sm);
}
.nav-links a:hover { color: var(--color-primary); }

.theme-toggle {
  width: 46px;
  height: 46px;
  display: grid;
  place-items: center;
  border: 1px solid var(--color-border);
  border-radius: 50%;
  background: var(--color-surface);
}

.hero {
  padding: clamp(var(--space-10), 9vw, 8rem) 0 var(--space-16);
}
.hero-grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: var(--space-10);
  align-items: center;
}
.eyebrow {
  margin-bottom: var(--space-3);
  text-transform: uppercase;
  letter-spacing: 0.18em;
  font-size: var(--text-xs);
  color: var(--color-primary);
  font-weight: 800;
}
.hero h1,
.section-heading h2,
.cta-card h2 {
  font-family: var(--font-display);
  line-height: 0.95;
  letter-spacing: -0.03em;
}
.hero h1 {
  font-size: var(--text-2xl);
  max-width: 10ch;
}
.hero-text {
  margin-top: var(--space-5);
  max-width: 58ch;
  color: var(--color-muted);
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  margin-top: var(--space-6);
}
.btn {
  min-height: 48px;
  padding: 0 var(--space-5);
  border-radius: 999px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  transition: transform 180ms ease, background 180ms ease;
}
.btn:hover { transform: translateY(-2px); }
.btn-primary {
  background: var(--color-primary);
  color: #fff;
}
.btn-secondary {
  border: 1px solid var(--color-border);
  background: var(--color-surface);
}

.panel-shell {
  background: linear-gradient(135deg, var(--color-surface), var(--color-surface-2));
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-lg);
  border-radius: var(--radius-lg);
  padding: var(--space-4);
}
.panel-top {
  display: flex;
  gap: var(--space-2);
  margin-bottom: var(--space-4);
}
.panel-top span {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--color-border);
}
.fusion-layout {
  display: grid;
  gap: var(--space-4);
  grid-template-columns: repeat(2, 1fr);
}
.fusion-card {
  min-height: 180px;
  border-radius: var(--radius-md);
  padding: var(--space-5);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  border: 1px solid var(--color-border);
}
.fusion-card h2 {
  font-size: var(--text-xl);
  font-family: var(--font-display);
}
.fusion-card p,
.fusion-card span,
.fusion-card small { color: var(--color-muted); }
.stone {
  background: linear-gradient(180deg, rgba(166, 107, 45, 0.1), transparent), var(--color-surface);
}
.code {
  background: linear-gradient(180deg, rgba(13, 92, 99, 0.13), transparent), var(--color-surface);
}
.blueprint {
  grid-column: 1 / -1;
  position: relative;
  overflow: hidden;
  background: var(--color-code-soft);
}
.grid-lines {
  position: absolute;
  inset: 0;
  background-image: linear-gradient(rgba(255,255,255,0.08) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,0.08) 1px, transparent 1px);
  background-size: 28px 28px;
  opacity: 0.7;
}
.blueprint strong,
.blueprint small { position: relative; z-index: 1; }

.section {
  padding: clamp(var(--space-12), 8vw, var(--space-20)) 0;
}
.intro-band {
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}
.intro-grid,
.split-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: var(--space-10);
  align-items: start;
}
.reverse { grid-template-columns: 1.1fr 0.9fr; }
.narrow { max-width: 58rem; }
.section-heading h2,
.cta-card h2 { font-size: var(--text-xl); margin-bottom: var(--space-4); }
.section-heading p:last-child,
.intro-grid p,
.info-card p,
.project-card p { color: var(--color-muted); }
.intro-grid p + p { margin-top: var(--space-4); }

.cards-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-4);
}
.info-card,
.project-card,
.cta-card,
.metrics-grid article {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
}
.info-card {
  border-radius: var(--radius-md);
  padding: var(--space-5);
  min-height: 220px;
}
.info-card.wide { grid-column: 1 / -1; }
.info-card h3 {
  margin: var(--space-3) 0;
  font-size: var(--text-lg);
}
.tag {
  display: inline-flex;
  align-items: center;
  min-height: 32px;
  padding: 0 var(--space-3);
  border-radius: 999px;
  background: rgba(13, 92, 99, 0.1);
  color: var(--color-primary);
  font-size: var(--text-xs);
  font-weight: 800;
}
.accent { background: linear-gradient(180deg, rgba(13, 92, 99, 0.1), transparent), var(--color-surface); }
.accent-soft { background: linear-gradient(180deg, rgba(83, 125, 66, 0.1), transparent), var(--color-surface); }
.accent-outline { border-style: dashed; }
.alt {
  background: color-mix(in srgb, var(--color-surface) 40%, transparent);
}

.project-list {
  margin-top: var(--space-8);
  display: grid;
  gap: var(--space-4);
}
.project-card {
  padding: var(--space-5);
  border-radius: var(--radius-md);
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: var(--space-4);
  align-items: center;
}
.project-index {
  display: inline-block;
  margin-bottom: var(--space-2);
  color: var(--color-accent);
  font-weight: 800;
}
.project-card h3 { font-size: var(--text-lg); }

.metrics-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-4);
}
.metrics-grid article {
  padding: var(--space-6);
  border-radius: var(--radius-md);
  text-align: center;
}
.metrics-grid strong {
  display: block;
  font-size: clamp(2.2rem, 1.3rem + 2vw, 4rem);
  color: var(--color-primary);
  font-family: var(--font-display);
}
.metrics-grid span { color: var(--color-muted); }

.cta-card {
  border-radius: var(--radius-lg);
  padding: clamp(var(--space-6), 5vw, var(--space-10));
  display: grid;
  grid-template-columns: 0.95fr 1.05fr;
  gap: var(--space-8);
}
.contact-form {
  display: grid;
  gap: var(--space-4);
}
.contact-form label {
  display: grid;
  gap: var(--space-2);
  font-size: var(--text-sm);
  font-weight: 700;
}
.contact-form input,
.contact-form textarea {
  border: 1px solid var(--color-border);
  background: transparent;
  color: var(--color-text);
  padding: var(--space-4);
  border-radius: 1rem;
}
.contact-form input:focus,
.contact-form textarea:focus {
  outline: 2px solid rgba(13, 92, 99, 0.25);
  border-color: var(--color-primary);
}

.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 700ms ease, transform 700ms ease;
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}
.delay-1 { transition-delay: 120ms; }
.delay-2 { transition-delay: 220ms; }

@media (max-width: 960px) {
  .hero-grid,
  .intro-grid,
  .split-grid,
  .cta-card,
  .project-card {
    grid-template-columns: 1fr;
  }

  .nav-links { display: none; }
  .metrics-grid { grid-template-columns: 1fr; }
}

@media (max-width: 640px) {
  .cards-grid,
  .fusion-layout { grid-template-columns: 1fr; }
  .blueprint,
  .info-card.wide { grid-column: auto; }
  .hero { padding-top: var(--space-8); }
}

.intro-grid-double {
  grid-template-columns: 0.85fr 1.15fr;
}

.intro-copy-block {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.pages-grid {
  grid-template-columns: repeat(2, 1fr);
}

.page-card {
  min-height: 100%;
  transition: transform 180ms ease, box-shadow 180ms ease;
}

.page-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.page-card-link {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  height: 100%;
}

.page-image-box {
  min-height: 190px;
  border: 2px dashed color-mix(in srgb, var(--color-text) 18%, transparent);
  border-radius: 1rem;
  display: grid;
  place-items: center;
  text-align: center;
  padding: var(--space-5);
  background: color-mix(in srgb, var(--color-surface-2) 72%, transparent);
  transition: border-color 180ms ease, background 180ms ease, transform 180ms ease;
}

.page-image-box span {
  max-width: 22ch;
  color: var(--color-muted);
  font-size: var(--text-sm);
  font-weight: 700;
}

.page-card-link:hover .page-image-box,
.page-card-link:focus-visible .page-image-box {
  border-color: var(--color-primary);
  background: color-mix(in srgb, var(--color-primary) 10%, var(--color-surface-2));
  transform: translateY(-2px);
}

.page-card-link:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 4px;
  border-radius: var(--radius-sm);
}

.architecture-page-card {
  background: linear-gradient(180deg, rgba(166, 107, 45, 0.08), transparent), var(--color-surface);
}

.tech-page-card {
  background: linear-gradient(180deg, rgba(13, 92, 99, 0.08), transparent), var(--color-surface);
}

@media (max-width: 640px) {
  .pages-grid {
    grid-template-columns: 1fr;
  }
}