/* ── Tokens ─────────────────────────────────────────────────────────────── */

:root {
  --bg:          #F2F0EB;
  --bg-surface:  #FFFFFF;
  --bg-invert:   #0D0D0D;

  --text:        #0D0D0D;
  --text-muted:  #6B6B6B;
  --text-invert: #F2F0EB;

  --accent:       #FF3300;
  --accent-hover: #CC2900;

  --border:       #0D0D0D;
  --border-w:     2px;

  --shadow:       4px 4px 0px var(--border);
  --shadow-lg:    6px 6px 0px var(--border);

  --font-sans:
    "Inter", "Helvetica Neue", "Arial", Helvetica, sans-serif;
  --font-mono:
    "JetBrains Mono", "Fira Code", "SF Mono", monospace;
}

/* ── Reset ──────────────────────────────────────────────────────────────── */

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

html {
  scroll-behavior: smooth;
  scrollbar-color: var(--accent) var(--bg);
}

body {
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.6;
  background: var(--bg);
  color: var(--text);
  -webkit-font-smoothing: antialiased;
}

::selection {
  background: var(--accent);
  color: var(--bg);
}

/* ── Shell ──────────────────────────────────────────────────────────────── */

.shell {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

main {
  flex: 1;
}

/* ── Header ─────────────────────────────────────────────────────────────── */

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--bg);
  border-bottom: var(--border-w) solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 2.5rem;
}

.site-brand {
  font-weight: 900;
  font-size: 1rem;
  color: var(--text);
  text-decoration: none;
  letter-spacing: -0.02em;
  transition: color 0.1s;
}

.site-brand:hover {
  color: var(--accent);
}

.site-header nav {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.site-header nav a {
  font-size: 0.8125rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text);
  text-decoration: none;
  border-bottom: 2px solid transparent;
  padding-bottom: 2px;
  transition: color 0.1s, border-color 0.1s;
}

.site-header nav a:hover {
  color: var(--accent);
  border-bottom-color: var(--accent);
}

/* ── Buttons ────────────────────────────────────────────────────────────── */

.btn-primary {
  display: inline-block;
  padding: 0.75rem 1.75rem;
  font-family: var(--font-sans);
  font-size: 0.8125rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  text-decoration: none;
  background: var(--accent);
  color: var(--bg);
  border: var(--border-w) solid var(--border);
  border-radius: 0;
  box-shadow: var(--shadow);
  cursor: pointer;
  transition: background 0.1s, box-shadow 0.1s, transform 0.1s;
}

.btn-primary:hover {
  background: var(--accent-hover);
  box-shadow: var(--shadow-lg);
  transform: translate(-1px, -1px);
}

.btn-primary:active {
  box-shadow: none;
  transform: translate(3px, 3px);
}

/* ── Sections (shared) ──────────────────────────────────────────────────── */

section {
  border-bottom: var(--border-w) solid var(--border);
  padding: 5rem 2.5rem;
}

.section-inner {
  max-width: 1100px;
  margin: 0 auto;
}

.section-label {
  display: block;
  font-size: 0.6875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--accent);
  margin-bottom: 0.5rem;
}

.section-title {
  font-size: clamp(1.625rem, 3vw, 2.375rem);
  font-weight: 900;
  letter-spacing: -0.025em;
  line-height: 1.1;
  margin-bottom: 0.75rem;
}

.section-sub {
  font-size: 1.0625rem;
  color: var(--text-muted);
  max-width: 520px;
  line-height: 1.6;
}

/* ── Hero ───────────────────────────────────────────────────────────────── */

.hero {
  background: var(--bg-invert);
  color: var(--text-invert);
  min-height: 100svh;
  display: flex;
  align-items: flex-start;
  padding: 22vh 2.5rem 10rem;
  border-bottom: var(--border-w) solid var(--border);
}

.hero-inner {
  max-width: 1100px;
  margin: 0 auto;
  width: 100%;
}

.hero-label {
  display: block;
  font-size: 0.6875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--accent);
  margin-bottom: 1.75rem;
}

.hero-headline {
  font-size: clamp(2.75rem, 7vw, 5.5rem);
  font-weight: 900;
  line-height: 1.0;
  letter-spacing: -0.04em;
  color: var(--text-invert);
  margin-bottom: 1.5rem;
  max-width: 850px;
}

.hero-headline em {
  font-style: normal;
  color: var(--accent);
}

.hero-sub {
  font-size: clamp(1rem, 2vw, 1.1875rem);
  color: #888;
  max-width: 520px;
  margin-bottom: 3rem;
  line-height: 1.65;
}

/* ── Services ───────────────────────────────────────────────────────────── */

#services {
  background: var(--bg);
}

.services-header {
  margin-bottom: 3rem;
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.service-card {
  background: var(--bg-surface);
  border: var(--border-w) solid var(--border);
  box-shadow: var(--shadow);
  padding: 2rem;
  border-radius: 0;
  transition: box-shadow 0.1s, transform 0.1s;
}

.service-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translate(-1px, -1px);
}

.service-card-num {
  font-size: 0.6875rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  color: var(--accent);
  margin-bottom: 1.25rem;
  font-family: var(--font-mono);
}

.service-title {
  font-size: 1.25rem;
  font-weight: 900;
  letter-spacing: -0.025em;
  margin-bottom: 0.875rem;
  line-height: 1.2;
}

.service-desc {
  font-size: 0.9375rem;
  color: var(--text-muted);
  line-height: 1.65;
  margin-bottom: 1.5rem;
}

.service-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.375rem;
}

.service-tags span {
  font-size: 0.625rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  border: 1px solid var(--border);
  padding: 0.25rem 0.5rem;
  border-radius: 0;
}

/* ── About ──────────────────────────────────────────────────────────────── */

#about {
  background: var(--bg-surface);
}

.about-header {
  margin-bottom: 3rem;
}

.about-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 5rem;
  align-items: stretch;
}

.about-copy {
  border-left: 4px solid var(--accent);
  padding-left: 2rem;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.about-copy p {
  font-size: 1.0625rem;
  color: var(--text-muted);
  line-height: 1.75;
  margin-bottom: 1.125rem;
}

.about-copy p:last-child {
  margin-bottom: 0;
}

.about-differentiators {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.differentiator {
  border: var(--border-w) solid var(--border);
  box-shadow: var(--shadow);
  padding: 1.25rem 1.5rem;
  background: var(--bg);
  transition: box-shadow 0.1s, transform 0.1s;
}

.differentiator:hover {
  box-shadow: var(--shadow-lg);
  transform: translate(-1px, -1px);
}

.differentiator-title {
  font-size: 0.8125rem;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 0.375rem;
}

.differentiator p {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.55;
}

/* ── CTA ────────────────────────────────────────────────────────────────── */

#cta {
  background: var(--accent);
}

#cta .section-label {
  color: rgba(242, 240, 235, 0.55);
}

#cta .section-title {
  color: var(--bg);
}

#cta .section-sub {
  color: rgba(242, 240, 235, 0.7);
}

.cta-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
}

.cta-btn {
  display: inline-block;
  padding: 0.875rem 2rem;
  font-family: var(--font-sans);
  font-size: 0.8125rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  text-decoration: none;
  background: var(--bg-invert);
  color: var(--text-invert);
  border: var(--border-w) solid var(--bg-invert);
  border-radius: 0;
  box-shadow: 4px 4px 0px rgba(13, 13, 13, 0.35);
  transition: box-shadow 0.1s, transform 0.1s;
  white-space: nowrap;
  flex-shrink: 0;
}

.cta-btn:hover {
  box-shadow: 6px 6px 0px rgba(13, 13, 13, 0.35);
  transform: translate(-1px, -1px);
}

.cta-btn:active {
  box-shadow: none;
  transform: translate(3px, 3px);
}

/* ── Contact ────────────────────────────────────────────────────────────── */

#contact {
  background: var(--bg);
}

.contact-header {
  margin-bottom: 2.5rem;
}

.contact-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.625rem;
}

.contact-links li a {
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--text);
  text-decoration: none;
  border-bottom: 2px solid transparent;
  padding-bottom: 2px;
  transition: color 0.1s, border-color 0.1s;
}

.contact-links li a:hover {
  color: var(--accent);
  border-bottom-color: var(--accent);
}

/* ── Footer ─────────────────────────────────────────────────────────────── */

.site-footer {
  background: var(--bg-invert);
  color: var(--text-invert);
  border-top: var(--border-w) solid var(--border);
  padding: 1.5rem 2.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.footer-brand {
  font-weight: 900;
  font-size: 0.875rem;
  letter-spacing: -0.01em;
}

.footer-copy {
  font-size: 0.8125rem;
  color: #444;
}

/* ── 404 ────────────────────────────────────────────────────────────────── */

.error-page {
  min-height: 100svh;
  background: var(--bg-invert);
  color: var(--text-invert);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  gap: 1.25rem;
  border-bottom: none;
  padding: 2rem;
}

.error-label {
  font-size: 0.6875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--accent);
}

.error-code {
  font-size: clamp(6rem, 20vw, 12rem);
  font-weight: 900;
  letter-spacing: -0.05em;
  line-height: 1;
  color: var(--accent);
}

.error-msg {
  font-size: 1.125rem;
  color: #666;
  margin-bottom: 0.5rem;
}

/* ── Responsive ─────────────────────────────────────────────────────────── */

@media (max-width: 1024px) {
  .services-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .about-layout {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }
}

@media (max-width: 768px) {
  section {
    padding: 3.5rem 1.5rem;
  }

  .hero {
    padding: 5rem 1.5rem 4rem;
  }

  .site-header {
    padding: 0.875rem 1.5rem;
  }

  .cta-inner {
    flex-direction: column;
    align-items: flex-start;
  }

  .cta-btn {
    width: 100%;
    text-align: center;
  }
}

@media (max-width: 640px) {
  html {
    font-size: 15px;
  }

  .site-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.75rem;
    padding: 1rem 1.25rem;
  }

  .site-header nav {
    gap: 1.125rem;
  }

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

  .hero-sub {
    max-width: 100%;
  }

  .btn-primary {
    width: 100%;
    text-align: center;
  }

  :root {
    --shadow:    3px 3px 0px var(--border);
    --shadow-lg: 5px 5px 0px var(--border);
  }
}

/* ── Print ──────────────────────────────────────────────────────────────── */

@media print {
  :root {
    --bg:       white;
    --text:     #111;
    --accent:   #111;
    --shadow:   none;
    --shadow-lg: none;
    --border:   #aaa;
  }

  .site-header,
  .hero,
  #cta,
  .site-footer {
    background: white;
    color: #111;
    border-color: #ccc;
  }

  .btn-primary,
  .cta-btn {
    display: none;
  }

  .service-card,
  .differentiator {
    box-shadow: none;
    border: 1px solid #ccc;
  }

  a[href]::after {
    content: " (" attr(href) ")";
    font-size: 0.75em;
    color: #666;
  }
}