/* ============================================================
   inSync Group — style.css
   ============================================================ */

/* ── Custom Properties ─────────────────────────────────────── */
:root {
  --bg:           #e6e6e6;
  --bg-subtle:    #f5f5f3;
  --text:         #1a1a1a;
  --text-muted:   #6b6b6b;
  --border:       #e0e0de;
  --border-strong:#0a0a0a;
  --nav-height:   72px;
  --max-width:    1200px;
  --font-display: 'Syne', sans-serif;
  --font-mono:    'DM Mono', monospace;
}

[data-theme="dark"] {
  --bg:           #1a1a1a;
  --bg-subtle:    #141414;
  --text:         #e6e6e6;
  --text-muted:   #888884;
  --border:       #2a2a28;
  --border-strong:#f0f0ee;
}

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-display);
  background: var(--bg);
  color: var(--text);
  font-size: 16px;
  line-height: 1.6;
  transition: background 0.25s, color 0.25s;
  -webkit-font-smoothing: antialiased;
}

img {
  max-width: 100%;
  display: block;
}

a {
  color: inherit;
}

/* ── Layout ─────────────────────────────────────────────────── */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 40px;
}

main {
  padding-top: var(--nav-height);
}

/* ── Navigation ─────────────────────────────────────────────── */
/* ── Navigation ─────────────────────────────────────────────── */
.site-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav-height);
  background: var(--bg);
  border-bottom: 1px solid var(--border-strong);
  z-index: 100;
  overflow: hidden;
  transition: background 0.25s, border-color 0.25s;
}

.site-nav::after {
  content: '';
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  opacity: 0.12;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)'/%3E%3C/svg%3E");
  background-size: 180px 180px;
  background-repeat: repeat;
}

[data-theme="dark"] .site-nav::after {
  opacity: 0.08;
}

.nav-inner {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: relative;
  z-index: 1;
}

.nav-logo img.logo-dark {
  display: none;
}

[data-theme="dark"] .nav-logo img.logo-light {
  display: none;
}

[data-theme="dark"] .nav-logo img.logo-dark {
  display: block;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 36px;
  list-style: none;
}

.nav-links a {
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-muted);
  text-decoration: none;
  transition: color 0.15s;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--text);
	font-weight: 700;
}

.nav-links .nav-cta {
  color: var(--text);
}

.nav-links .nav-cta:hover {
  color: var(--text-muted);
}

.theme-toggle {
  background: none;
  border: 1px solid var(--border);
  color: var(--text-muted);
  cursor: pointer;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 15px;
  transition: border-color 0.15s, color 0.15s;
  flex-shrink: 0;
}

.theme-toggle:hover {
  border-color: var(--border-strong);
  color: var(--text);
}

/* Mobile menu toggle (hidden by default) */
.nav-mobile-toggle {
  display: none;
  background: none;
  border: 1px solid var(--border);
  color: var(--text);
  cursor: pointer;
  width: 34px;
  height: 34px;
  align-items: center;
  justify-content: center;
  font-size: 18px;
}

/* ── Section Base ───────────────────────────────────────────── */
.section {
  padding: 100px 0;
  border-bottom: 1px solid var(--border);
}

.section-label {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 300;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 48px;
  display: flex;
  align-items: center;
  gap: 16px;
}

.section-label::after {
  content: '';
  display: block;
  width: 40px;
  height: 1px;
  background: var(--border);
}

/* ── Typography ─────────────────────────────────────────────── */
.display-heading {
  font-size: clamp(38px, 6vw, 80px);
  font-weight: 600;
  line-height: 1.0;
  letter-spacing: -0.02em;
}

.display-heading em {
  font-style: normal;
  color: var(--text-muted);
}

.section-heading {
  font-size: clamp(26px, 3.5vw, 44px);
  font-weight: 600;
  letter-spacing: -0.02em;
  line-height: 1.1;
}

.body-text {
  font-size: 16px;
  color: var(--text-muted);
  line-height: 1.8;
}

.body-text p + p {
  margin-top: 16px;
}

.mono-label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
}

/* ── Buttons ─────────────────────────────────────────────────── */
.btn-primary {
  display: inline-block;
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--bg);
  background: var(--text);
  padding: 14px 32px;
  text-decoration: none;
  border: none;
  cursor: pointer;
  transition: opacity 0.15s;
}

.btn-primary:hover {
  opacity: 0.8;
}

.btn-outline {
  display: inline-block;
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text);
  background: none;
  padding: 13px 31px;
  text-decoration: none;
  border: 1px solid var(--border-strong);
  cursor: pointer;
  transition: background 0.15s, color 0.15s;
}

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

/* ── Two-column grid ─────────────────────────────────────────── */
.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: start;
}

/* ── Stat strip ──────────────────────────────────────────────── */
.stat-strip {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  margin-top: 48px;
}

.stat-item {
  background: var(--bg);
  padding: 24px 20px;
  transition: background 0.15s;
}

.stat-num {
  font-size: 30px;
  font-weight: 600;
  letter-spacing: -0.03em;
  display: block;
  margin-bottom: 4px;
}

.stat-label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
}

/* ── Services grid ───────────────────────────────────────────── */
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
}

.service-card {
  background: var(--bg);
  padding: 36px 28px;
  transition: background 0.15s;
}

.service-card:hover {
  background: var(--bg-subtle);
}

.service-num {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  margin-bottom: 20px;
  display: block;
}

.service-card h3 {
  font-size: 17px;
  font-weight: 600;
  margin-bottom: 10px;
  letter-spacing: -0.01em;
}

.service-card p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.7;
}

/* ── Contact form ────────────────────────────────────────────── */
.contact-form {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.form-group label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.form-group input,
.form-group textarea,
.form-group select {
  background: var(--bg-subtle);
  border: 1px solid var(--border);
  color: var(--text);
  font-family: var(--font-display);
  font-size: 14px;
  padding: 12px 14px;
  outline: none;
  transition: border-color 0.15s;
  -webkit-appearance: none;
  border-radius: 0;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  border-color: var(--text);
}

.form-group textarea {
  resize: vertical;
  min-height: 100px;
}

/* ── Footer ──────────────────────────────────────────────────── */
.site-footer {
  padding: 32px 0;
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.footer-inner p,
.footer-inner a {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  text-decoration: none;
}

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

/* ── Page hero (inner pages) ─────────────────────────────────── */
.page-hero {
  padding: 80px 0 64px;
  border-bottom: 1px solid var(--border);
}

/* ── Utility ─────────────────────────────────────────────────── */
.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
  border: 0;
}

/* ── Responsive ──────────────────────────────────────────────── */
@media (max-width: 900px) {
  .services-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .container {
    padding: 0 20px;
  }

  .section {
    padding: 72px 0;
  }

  .two-col {
    grid-template-columns: 1fr;
    gap: 40px;
  }

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

  .form-row {
    grid-template-columns: 1fr;
  }

  .nav-links {
    display: none;
    position: absolute;
    top: var(--nav-height);
    left: 0;
    right: 0;
    background: var(--bg);
    border-bottom: 1px solid var(--border);
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    padding: 8px 0;
  }

  .nav-links.open {
    display: flex;
  }

  .nav-links li {
    width: 100%;
  }

  .nav-links a {
    display: block;
    padding: 14px 20px;
  }

  .nav-mobile-toggle {
    display: flex;
  }

  .footer-inner {
    flex-direction: column;
    gap: 8px;
    text-align: center;
  }
}

@media (max-width: 480px) {
  .stat-strip {
    grid-template-columns: 1fr;
  }
}