/* ============================================
   Tecknobit Solutions — Design Tokens
   ============================================ */
:root {
  --color-bg: #FFFFFF;
  --color-bg-tint: #F6F6F9;
  --color-ink: #111111;
  --color-ink-soft: #5B5B60;
  --color-blue: #3E4095;
  --color-blue-dark: #2E3070;
  --color-red: #ED3237;
  --color-red-dark: #C82128;
  --color-line: #E4E4E9;
  --color-white: #FFFFFF;

  --font-display: 'Fraunces', Georgia, serif;
  --font-body: 'Inter', -apple-system, sans-serif;
  --font-mono: 'IBM Plex Mono', monospace;

  --max-width: 1120px;
  --pad: clamp(1.25rem, 4vw, 3rem);
}

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

html { scroll-behavior: smooth; }

body {
  background: var(--color-bg);
  color: var(--color-ink);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }
img, svg { display: block; max-width: 100%; }

.wrap {
  max-width: var(--max-width);
  margin: 0 auto;
  padding-left: var(--pad);
  padding-right: var(--pad);
}

a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible {
  outline: 2px solid var(--color-blue);
  outline-offset: 3px;
}

/* ============================================
   Header / Nav
   ============================================ */
.site-header {
  border-bottom: 1px solid var(--color-line);
  background: var(--color-bg);
  position: sticky;
  top: 0;
  z-index: 50;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 1.1rem;
  padding-bottom: 1.1rem;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  font-family: var(--font-display);
  font-size: 2.1rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--color-ink);
}

.logo-mark { width: 50px; height: 50px; flex-shrink: 0; }

.logo-word .word-blue { color: var(--color-blue); }
.logo-word .word-red { color: var(--color-red); }

.nav-links {
  display: flex;
  gap: 2.2rem;
  list-style: none;
  align-items: center;
}

.nav-links a {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-ink);
  padding-bottom: 0.3rem;
  border-bottom: 2px solid transparent;
  transition: border-color 0.15s ease, color 0.15s ease;
}

.nav-links a:hover {
  border-color: var(--color-red);
}

.nav-links a.nav-cta {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  background: var(--color-red);
  color: var(--color-white) !important;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.95rem 1.75rem;
  margin-left: 0.75rem;
  white-space: nowrap;
  border-radius: 4px;
  border-bottom: none !important;
  line-height: 1;
  transition: background 0.15s ease;
}

.nav-cta:hover { background: var(--color-red-dark); }

.nav-toggle {
  display: none;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  background: none;
  border: 1px solid var(--color-line);
  border-radius: 4px;
  padding: 0.5rem 0.8rem;
  cursor: pointer;
  color: var(--color-ink);
}

/* ============================================
   Hero
   ============================================ */
.hero {
  padding: clamp(3rem, 8vw, 5.5rem) 0 clamp(2.5rem, 6vw, 4rem);
  border-bottom: 1px solid var(--color-line);
}

.hero-split {
  display: grid;
  grid-template-columns: 1.15fr 1fr;
  gap: clamp(2rem, 5vw, 3.5rem);
  align-items: center;
}

.eyebrow {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-blue);
  margin-bottom: 1rem;
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-weight: 600;
}

.eyebrow::before {
  content: "";
  display: inline-block;
  width: 1.5rem;
  height: 2px;
  background: var(--color-red);
}

h1 {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: clamp(1.75rem, 3.8vw, 2.3rem);
  line-height: 1.2;
  letter-spacing: -0.01em;
  max-width: 16ch;
}

.hero-sub {
  margin-top: 1.3rem;
  font-size: 1.08rem;
  color: var(--color-ink-soft);
  max-width: 46ch;
}

.hero-actions {
  margin-top: 2rem;
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.hero-mark {
  aspect-ratio: 1 / 1;
  background: var(--color-bg-tint);
  border: 1px solid var(--color-line);
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: clamp(2rem, 6vw, 4rem);
  position: relative;
}

.hero-mark svg { width: 100%; height: auto; }

.placeholder-tag {
  position: absolute;
  bottom: 0.9rem;
  right: 0.9rem;
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-ink-soft);
  background: var(--color-white);
  border: 1px solid var(--color-line);
  padding: 0.35rem 0.6rem;
  border-radius: 3px;
}

/* ============================================
   Buttons
   ============================================ */
.btn {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 0.9rem 1.6rem;
  border-radius: 4px;
  border: 1px solid transparent;
  transition: all 0.15s ease;
}

.btn-primary { background: var(--color-red); color: var(--color-white); }
.btn-primary:hover { background: var(--color-red-dark); }

.btn-ghost { border-color: var(--color-blue); color: var(--color-blue); }
.btn-ghost:hover { background: var(--color-blue); color: var(--color-white); }

/* ============================================
   Sections
   ============================================ */
section { padding: clamp(3rem, 7vw, 5rem) 0; scroll-margin-top: 80px; }
.section-tint { background: var(--color-bg-tint); }

.section-head { max-width: 62ch; margin-bottom: 2.2rem; }

h2 {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: clamp(1.6rem, 3.5vw, 2.1rem);
  letter-spacing: -0.01em;
}

.section-head p {
  margin-top: 0.9rem;
  color: var(--color-ink-soft);
  font-size: 1.05rem;
}

/* Services list */
.services-list {
  list-style: none;
  border-top: 1px solid var(--color-line);
}

.services-list li {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  padding: 1.4rem 0;
  border-bottom: 1px solid var(--color-line);
  font-size: 1.05rem;
}

.services-list li::before {
  content: "";
  flex-shrink: 0;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-red);
  margin-top: 0.55rem;
}

/* Contact */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(2rem, 5vw, 4rem);
}

.contact-info dt {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-blue);
  margin-top: 1.5rem;
  font-weight: 600;
}

.contact-info dt:first-child { margin-top: 0; }

.contact-info dd { margin-top: 0.3rem; font-size: 1.08rem; }

.contact-card {
  background: var(--color-blue);
  color: var(--color-white);
  border-radius: 6px;
  padding: clamp(1.75rem, 4vw, 2.5rem);
}

.contact-card h3 {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 1.3rem;
  margin-bottom: 0.8rem;
}

.contact-card p { color: rgba(255,255,255,0.82); margin-bottom: 1.5rem; }

.contact-card .btn-primary { background: var(--color-red); }
.contact-card .btn-primary:hover { background: var(--color-red-dark); }

/* ============================================
   Footer
   ============================================ */
.site-footer {
  background: var(--color-ink);
  color: var(--color-white);
  padding: 2.5rem 0;
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
}

.footer-inner .logo { color: var(--color-white); }

.footer-meta {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.05em;
  color: rgba(255,255,255,0.6);
  text-transform: uppercase;
}

/* ============================================
   Responsive
   ============================================ */
@media (max-width: 800px) {
  .hero-split { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }

  .nav-toggle { display: block; }
  .nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    gap: 0;
    background: var(--color-bg);
    border-bottom: 1px solid var(--color-line);
    padding: 0.5rem var(--pad) 1rem;
  }
  .nav-links.open { display: flex; }
  .nav-links a { padding: 0.8rem 0; border-bottom: 1px solid var(--color-line); }
  .nav-cta { display: inline-block; margin-top: 0.8rem; text-align: center; }
  .header-inner { position: relative; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { transition: none !important; }
}