/* ============================================================
   dplabs Design System
   ============================================================ */

/* 1. Fonts — self-hosted */
@font-face {
  font-family: 'Inter';
  src: url('../fonts/inter-v20-latin-300.woff2') format('woff2');
  font-weight: 300;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: 'Inter';
  src: url('../fonts/inter-v20-latin-regular.woff2') format('woff2');
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: 'Inter';
  src: url('../fonts/inter-v20-latin-500.woff2') format('woff2');
  font-weight: 500;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: 'Inter';
  src: url('../fonts/inter-v20-latin-600.woff2') format('woff2');
  font-weight: 600;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: 'Inter';
  src: url('../fonts/inter-v20-latin-700.woff2') format('woff2');
  font-weight: 700;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: 'JetBrains Mono';
  src: url('../fonts/jetbrains-mono-v24-latin-regular.woff2') format('woff2');
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: 'JetBrains Mono';
  src: url('../fonts/jetbrains-mono-v24-latin-500.woff2') format('woff2');
  font-weight: 500;
  font-style: normal;
  font-display: swap;
}

/* 2. Design Tokens — Dark (default) */
:root {
  --bg:          #0A0A0B;
  --bg-1:        #111113;
  --bg-2:        #17171A;
  --bg-3:        #1E1E22;
  --border:      #1E1E22;
  --border-2:    #2A2A30;
  --text:        #ECECEC;
  --text-2:      #9090A0;
  --text-3:      #555560;
  --accent:      #4F85FF;
  --accent-dim:  #2A4FA8;
  --accent-text: #7AABFF;
  --tag-bg:      #1A2A40;
  --tag-text:    #7AABFF;
  --green:       #34D399;
  --red:         #F87171;
  --nav-bg:      rgba(10, 10, 11, 0.85);
  --shadow:      0 1px 3px rgba(0,0,0,0.4);

  --font-sans: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', 'Cascadia Code', monospace;

  --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;
  --space-24: 6rem;
  --space-32: 8rem;

  --max-w: 1200px;
  --prose-w: 740px;

  --radius:   3px;
  --radius-2: 6px;
  --radius-3: 10px;

  --nav-h: 64px;
  --transition: 160ms ease;
  --transition-slow: 320ms ease;
}

/* 2b. Design Tokens — Light */
[data-theme="light"] {
  --bg:          #F8F8F6;
  --bg-1:        #F0F0ED;
  --bg-2:        #E8E8E4;
  --bg-3:        #DEDEDA;
  --border:      #E2E2DC;
  --border-2:    #CACAC2;
  --text:        #111111;
  --text-2:      #555558;
  --text-3:      #94949A;
  --accent:      #2563EB;
  --accent-dim:  #DBEAFE;
  --accent-text: #1D4ED8;
  --tag-bg:      #EFF6FF;
  --tag-text:    #1D4ED8;
  --green:       #059669;
  --red:         #DC2626;
  --nav-bg:      rgba(248, 248, 246, 0.88);
  --shadow:      0 1px 3px rgba(0,0,0,0.1);
}

/* 3. Reset */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.65;
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

img, video, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button, input, textarea, select { font: inherit; }
ul, ol { list-style: none; }
h1,h2,h3,h4,h5,h6 {
  font-weight: 600;
  line-height: 1.2;
  letter-spacing: -0.02em;
  color: var(--text);
}

/* 4. Layout Utilities */
.container {
  width: 100%;
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 var(--space-6);
}
.container--narrow { max-width: var(--prose-w); }

.section { padding: var(--space-24) 0; }
.section--sm { padding: var(--space-16) 0; }
.section--lg { padding: var(--space-32) 0; }

/* 5. Navigation */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: var(--nav-h);
  background: var(--nav-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent;
  transition: border-color var(--transition);
}
.nav.scrolled { border-bottom-color: var(--border); }

.nav__inner {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--nav-h);
  gap: var(--space-4);
}

.nav__right {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  margin-left: auto;
}

.nav__logo {
  font-size: 1.125rem;
  font-weight: 700;
  letter-spacing: -0.04em;
  color: var(--text);
  display: flex;
  align-items: center;
  gap: var(--space-2);
}
.nav__logo-img {
  height: 50px;
  width: auto;
  display: block;
  filter: brightness(0) invert(1);
  transition: filter var(--transition);
}
/* Light mode: show logo as-is (dark text on light bg) */
[data-theme="light"] .nav__logo-img {
  filter: none;
}
/* Remove old two-image toggle rules */
.nav__logo-img--light { display: none; }
.nav__logo-img--dark  { display: block; }
[data-theme="light"] .nav__logo-img--dark  { display: none; }
[data-theme="light"] .nav__logo-img--light { display: block; }

.nav__logo-dot {
  width: 6px;
  height: 6px;
  background: var(--accent);
  border-radius: 50%;
  display: inline-block;
}

.nav__links {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  align-items: center;
  gap: var(--space-1);
}

.nav__item { position: relative; }

.nav__link {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: var(--space-2) var(--space-3);
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-2);
  border-radius: var(--radius);
  transition: color var(--transition), background var(--transition);
  white-space: nowrap;
}
.nav__link:hover, .nav__link.active { color: var(--text); }
.nav__link:hover { background: var(--bg-2); }

.nav__link svg { width: 12px; height: 12px; transition: transform var(--transition); }
.nav__item:hover .nav__link svg { transform: rotate(180deg); }

/* Dropdown */
.nav__dropdown {
  position: absolute;
  top: calc(100% + 8px);
  left: 0;
  min-width: 200px;
  background: var(--bg-2);
  border: 1px solid var(--border-2);
  border-radius: var(--radius-2);
  padding: var(--space-2);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-6px);
  transition: opacity var(--transition), transform var(--transition), visibility var(--transition);
  pointer-events: none;
}
.nav__item:hover .nav__dropdown,
.nav__item:focus-within .nav__dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
  pointer-events: auto;
}
.nav__dropdown a {
  display: block;
  padding: var(--space-2) var(--space-3);
  font-size: 0.875rem;
  color: var(--text-2);
  border-radius: var(--radius);
  transition: color var(--transition), background var(--transition);
}
.nav__dropdown a:hover { color: var(--text); background: var(--bg-3); }

.nav__cta {
  display: inline-flex;
  align-items: center;
  padding: var(--space-2) var(--space-4);
  background: var(--accent);
  color: #fff !important;
  border-radius: var(--radius);
  font-size: 0.875rem;
  font-weight: 600;
  white-space: nowrap;
  flex-shrink: 0;
  letter-spacing: 0.01em;
  transition: background var(--transition), transform var(--transition);
}
.nav__cta:hover { background: #6699FF; transform: translateY(-1px); color: #fff !important; }
.nav__cta svg { width: 16px; height: 16px; pointer-events: none; margin-left: 4px; transition: transform var(--transition); }

/* Theme toggle */
.theme-toggle {
  display: flex;  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  background: var(--bg-2);
  border: 1px solid var(--border-2);
  border-radius: var(--radius);
  cursor: pointer;
  color: var(--text-2);
  transition: color var(--transition), background var(--transition), border-color var(--transition);
  flex-shrink: 0;
}
.theme-toggle:hover { color: var(--text); background: var(--bg-3); }
.theme-toggle svg { width: 16px; height: 16px; pointer-events: none; }
.theme-toggle .icon-sun  { display: none; }
.theme-toggle .icon-moon { display: block; }
[data-theme="light"] .theme-toggle .icon-sun  { display: block; }
[data-theme="light"] .theme-toggle .icon-moon { display: none; }

/* Mobile: hide desktop toggle controls wrapper on mobile, show burger */
.theme-toggle--mobile { display: none; }
@media (max-width: 768px) {
  .theme-toggle--mobile { display: flex; }
  /* Hide CTA from nav__right on mobile — mobile menu has its own CTA */
  .nav__right .nav__cta { display: none; }
}

/* Mobile menu */
.nav__burger {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 28px;
  cursor: pointer;
  background: none;
  border: none;
  padding: 4px;
}
.nav__burger span {
  display: block;
  height: 1.5px;
  background: var(--text);
  border-radius: 2px;
  transition: transform var(--transition), opacity var(--transition);
}
.nav__burger.open span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.nav__burger.open span:nth-child(2) { opacity: 0; }
.nav__burger.open span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

.nav__mobile {
  display: none;
  position: fixed;
  top: var(--nav-h);
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--bg-1);
  border-top: 1px solid var(--border);
  padding: var(--space-8) var(--space-6);
  overflow-y: auto;
  opacity: 0;
  transform: translateY(-8px);
  transition: opacity var(--transition-slow), transform var(--transition-slow);
}
.nav__mobile.open {
  display: block;
  opacity: 1;
  transform: translateY(0);
}
.nav__mobile-item {
  border-bottom: 1px solid var(--border);
}
.nav__mobile-item a {
  display: block;
  padding: var(--space-4) 0;
  font-size: 1.125rem;
  font-weight: 500;
  color: var(--text-2);
  transition: color var(--transition);
}
.nav__mobile-item a:hover { color: var(--text); }
.nav__mobile-sub {
  padding: 0 var(--space-4) var(--space-3);
}
.nav__mobile-sub a {
  padding: var(--space-2) 0;
  font-size: 1rem;
  color: var(--text-3);
}
.nav__mobile-cta {
  margin-top: var(--space-8);
}
.nav__mobile-cta a {
  display: inline-flex;
  padding: var(--space-3) var(--space-6);
  background: var(--accent);
  color: #fff;
  border-radius: var(--radius);
  font-weight: 600;
}

/* 6. Footer */
.footer {
  border-top: 1px solid var(--border);
  padding: var(--space-16) 0 var(--space-8);
  margin-top: var(--space-24);
}
.footer__inner {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--space-12);
  margin-bottom: var(--space-12);
}
.footer__brand {
  font-size: 1.125rem;
  font-weight: 700;
  letter-spacing: -0.04em;
  margin-bottom: var(--space-4);
}
.footer__logo-link { display: inline-block; margin-bottom: var(--space-4); }
.footer__logo-img {
  height: 44px;
  width: auto;
  display: block;
  filter: brightness(0) invert(1);
  transition: filter var(--transition);
}
[data-theme="light"] .footer__logo-img { filter: none; }
.footer__tagline {
  font-size: 0.875rem;
  color: var(--text-3);
  line-height: 1.6;
  max-width: 280px;
  margin-bottom: var(--space-4);
}
.footer__contact a {
  font-size: 0.875rem;
  color: var(--text-2);
  transition: color var(--transition);
}
.footer__contact a:hover { color: var(--accent-text); }
.footer__col-title {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-3);
  margin-bottom: var(--space-4);
}
.footer__col-links {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}
.footer__col-links a {
  font-size: 0.875rem;
  color: var(--text-2);
  transition: color var(--transition);
}
.footer__col-links a:hover { color: var(--text); }
.footer__bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: var(--space-6);
  border-top: 1px solid var(--border);
  font-size: 0.8125rem;
  color: var(--text-3);
}
.footer__legal { display: flex; gap: var(--space-6); }

/* Hero logo */
.hero__logo { margin-bottom: var(--space-8); }
.hero__logo-img {
  height: 80px;
  width: auto;
  filter: brightness(0) invert(1);
  transition: filter var(--transition);
}
[data-theme="light"] .hero__logo-img { filter: none; }

@media (max-width: 768px) {
  .hero__logo-img { height: 56px; }
}

/* 7. Hero */
.hero {
  min-height: 90vh;
  display: flex;
  align-items: center;
  padding-top: var(--nav-h);
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute;
  top: -20%;
  right: -10%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle at center, rgba(79, 133, 255, 0.06) 0%, transparent 70%);
  pointer-events: none;
}
.hero::after {
  content: '';
  position: absolute;
  bottom: -10%;
  left: -5%;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle at center, rgba(79, 133, 255, 0.04) 0%, transparent 70%);
  pointer-events: none;
}
.hero__inner {
  padding: var(--space-24) 0 var(--space-20);
  position: relative;
  z-index: 1;
}
.hero__label {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent-text);
  margin-bottom: var(--space-6);
}
.hero__label::before {
  content: '';
  display: block;
  width: 24px;
  height: 1px;
  background: var(--accent);
}
.hero__title {
  font-size: clamp(2.5rem, 6vw, 4.25rem);
  font-weight: 700;
  letter-spacing: -0.035em;
  line-height: 1.1;
  max-width: 820px;
  margin-bottom: var(--space-6);
  color: var(--text);
}
.hero__title em {
  font-style: normal;
  color: var(--accent-text);
}
.hero__subtitle {
  font-size: 1.125rem;
  color: var(--text-2);
  max-width: 560px;
  line-height: 1.7;
  margin-bottom: var(--space-10);
}
.hero__actions {
  display: flex;
  gap: var(--space-4);
  flex-wrap: wrap;
}
.hero__scroll {
  position: absolute;
  bottom: var(--space-8);
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-2);
  color: var(--text-3);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  animation: scrollBounce 2s ease-in-out infinite;
}
@keyframes scrollBounce {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50% { transform: translateX(-50%) translateY(6px); }
}
.hero__scroll svg { width: 20px; height: 20px; opacity: 0.4; }

/* 8. Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: 0.6875rem var(--space-5);
  font-size: 0.9375rem;
  font-weight: 600;
  border-radius: var(--radius);
  border: 1.5px solid transparent;
  cursor: pointer;
  transition: background var(--transition), color var(--transition), border-color var(--transition), transform var(--transition);
  white-space: nowrap;
}
.btn:hover { transform: translateY(-1px); }
.btn--primary {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}
.btn--primary:hover { background: #6699FF; border-color: #6699FF; }
.btn--outline {
  background: transparent;
  color: var(--text-2);
  border-color: var(--border-2);
}
.btn--outline:hover { color: var(--text); border-color: var(--text-3); }
.btn--ghost {
  background: transparent;
  color: var(--text-2);
  border-color: transparent;
  padding-left: 0;
  padding-right: 0;
}
.btn--ghost:hover { color: var(--text); transform: none; }
.btn--ghost:hover .btn__arrow { transform: translateX(4px); }
.btn__arrow { transition: transform var(--transition); }
.btn svg { width: 16px; height: 16px; }

/* 9. Section headings */
.section-label {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent-text);
  margin-bottom: var(--space-4);
}
.section-label::before {
  content: '';
  display: block;
  width: 20px;
  height: 1px;
  background: var(--accent);
}
.section-title {
  font-size: clamp(1.75rem, 3vw, 2.5rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  margin-bottom: var(--space-4);
}
.section-subtitle {
  font-size: 1.0625rem;
  color: var(--text-2);
  max-width: 560px;
  line-height: 1.7;
}

/* 10. Service Cards */
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-4);
  margin-top: var(--space-12);
}
.services-grid--2col {
  grid-template-columns: repeat(2, 1fr);
}
.service-card {
  display: block;
  background: var(--bg-1);
  border: 1px solid var(--border);
  border-radius: var(--radius-2);
  padding: var(--space-8);
  transition: border-color var(--transition), background var(--transition), transform var(--transition);
  position: relative;
  overflow: hidden;
}
.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
  opacity: 0;
  transition: opacity var(--transition-slow);
}
.service-card:hover { border-color: var(--border-2); background: var(--bg-2); transform: translateY(-2px); }
.service-card:hover::before { opacity: 1; }
.service-card__icon {
  width: 40px;
  height: 40px;
  margin-bottom: var(--space-5);
  color: var(--accent);
}
.service-card__icon svg { width: 100%; height: 100%; }
.service-card__tag {
  display: inline-block;
  padding: 2px var(--space-2);
  background: var(--tag-bg);
  color: var(--tag-text);
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  border-radius: var(--radius);
  margin-bottom: var(--space-4);
}
.service-card__title {
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: var(--space-3);
}
.service-card__desc {
  font-size: 0.9375rem;
  color: var(--text-2);
  line-height: 1.65;
  margin-bottom: var(--space-5);
}
.service-card__link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--accent-text);
  transition: gap var(--transition);
}
.service-card:hover .service-card__link { gap: var(--space-3); }
.service-card__link svg { width: 14px; height: 14px; }

/* 11. Expertise / capability grid */
.capability-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-3);
  margin-top: var(--space-10);
}
.capability-item {
  background: var(--bg-1);
  border: 1px solid var(--border);
  border-radius: var(--radius-2);
  padding: var(--space-5) var(--space-5);
  transition: border-color var(--transition);
}
.capability-item:hover { border-color: var(--border-2); }
.capability-item__label {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--text-2);
  margin-bottom: var(--space-1);
  display: flex;
  align-items: center;
  gap: var(--space-2);
}
.capability-item__label::before {
  content: '';
  display: block;
  width: 4px;
  height: 4px;
  background: var(--accent);
  border-radius: 50%;
}

/* 12. Process Steps */
.process {
  display: flex;
  gap: 0;
  margin-top: var(--space-10);
  position: relative;
}
.process::before {
  content: '';
  position: absolute;
  top: 20px;
  left: 20px;
  right: 20px;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--border-2), var(--border-2), transparent);
}
.process-step {
  flex: 1;
  text-align: center;
  padding: 0 var(--space-4);
  position: relative;
}
.process-step__num {
  width: 40px;
  height: 40px;
  background: var(--bg-2);
  border: 1px solid var(--border-2);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  font-weight: 700;
  font-family: var(--font-mono);
  color: var(--accent-text);
  margin: 0 auto var(--space-4);
  position: relative;
  z-index: 1;
}
.process-step__title {
  font-size: 0.875rem;
  font-weight: 700;
  margin-bottom: var(--space-2);
}
.process-step__desc {
  font-size: 0.8125rem;
  color: var(--text-2);
  line-height: 1.5;
}

/* 13. Expertise tags */
.tag-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-top: var(--space-6);
}
.tag {
  display: inline-flex;
  align-items: center;
  padding: var(--space-2) var(--space-3);
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--text-2);
  font-family: var(--font-mono);
  transition: color var(--transition), border-color var(--transition);
}
.tag:hover { color: var(--text); border-color: var(--border-2); }
.tag--accent {
  background: var(--tag-bg);
  border-color: var(--accent-dim);
  color: var(--tag-text);
}

/* 14. CTA Banner */
.cta-banner {
  background: var(--bg-1);
  border: 1px solid var(--border);
  border-radius: var(--radius-3);
  padding: var(--space-16) var(--space-12);
  text-align: center;
  position: relative;
  overflow: hidden;
}
.cta-banner::before {
  content: '';
  position: absolute;
  top: -50%;
  left: 50%;
  transform: translateX(-50%);
  width: 600px;
  height: 300px;
  background: radial-gradient(ellipse at center, rgba(79, 133, 255, 0.08) 0%, transparent 70%);
  pointer-events: none;
}
.cta-banner__title {
  font-size: clamp(1.75rem, 3vw, 2.25rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  margin-bottom: var(--space-4);
  position: relative;
}
.cta-banner__sub {
  font-size: 1.0625rem;
  color: var(--text-2);
  max-width: 480px;
  margin: 0 auto var(--space-8);
  line-height: 1.7;
  position: relative;
}
.cta-banner__actions {
  display: flex;
  justify-content: center;
  gap: var(--space-4);
  position: relative;
}

/* 15. Page header */
.page-header {
  padding: calc(var(--nav-h) + var(--space-16)) 0 var(--space-16);
  border-bottom: 1px solid var(--border);
  position: relative;
  overflow: hidden;
}
.page-header::before {
  content: '';
  position: absolute;
  top: 0; right: -10%;
  width: 400px; height: 400px;
  background: radial-gradient(circle, rgba(79,133,255,0.05) 0%, transparent 70%);
  pointer-events: none;
}
.page-header__label {
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent-text);
  margin-bottom: var(--space-4);
  display: flex;
  align-items: center;
  gap: var(--space-2);
}
.page-header__label::before {
  content: '';
  display: block;
  width: 20px;
  height: 1px;
  background: var(--accent);
}
.page-header__title {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  max-width: 720px;
  margin-bottom: var(--space-5);
}
.page-header__desc {
  font-size: 1.0625rem;
  color: var(--text-2);
  max-width: 560px;
  line-height: 1.7;
  margin-bottom: var(--space-8);
}

/* 16. Service page */
.service-page { padding-top: var(--space-16); }
.service-page__grid {
  display: grid;
  grid-template-columns: 1fr 380px;
  gap: var(--space-16);
  align-items: start;
}
.service-page__sidebar {
  position: sticky;
  top: calc(var(--nav-h) + var(--space-8));
}
.sidebar-card {
  background: var(--bg-1);
  border: 1px solid var(--border);
  border-radius: var(--radius-2);
  padding: var(--space-6);
  margin-bottom: var(--space-4);
}
.sidebar-card__title {
  font-size: 0.875rem;
  font-weight: 700;
  margin-bottom: var(--space-4);
  color: var(--text-2);
  letter-spacing: -0.01em;
}
.sidebar-card__list {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}
.sidebar-card__list li {
  font-size: 0.875rem;
  color: var(--text-2);
  padding-left: var(--space-4);
  position: relative;
}
.sidebar-card__list li::before {
  content: '→';
  position: absolute;
  left: 0;
  color: var(--accent);
  font-size: 0.75rem;
}
.sidebar-card__cta {
  margin-top: var(--space-4);
}
.sidebar-card__cta a {
  display: block;
  text-align: center;
  padding: var(--space-3) var(--space-4);
  background: var(--accent);
  color: #fff;
  border-radius: var(--radius);
  font-size: 0.9375rem;
  font-weight: 600;
  transition: background var(--transition);
}
.sidebar-card__cta a:hover { background: #6699FF; }

/* 17. Prose (service/blog content) */
.prose {
  font-size: 1.0625rem;
  line-height: 1.75;
  color: var(--text-2);
}
.prose h2 {
  font-size: 1.625rem;
  font-weight: 700;
  letter-spacing: -0.025em;
  color: var(--text);
  margin-top: var(--space-12);
  margin-bottom: var(--space-4);
}
.prose h3 {
  font-size: 1.1875rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text);
  margin-top: var(--space-8);
  margin-bottom: var(--space-3);
}
.prose h4 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text);
  margin-top: var(--space-6);
  margin-bottom: var(--space-2);
}
.prose p { margin-bottom: var(--space-5); }
.prose strong { color: var(--text); font-weight: 600; }
.prose a { color: var(--accent-text); text-decoration: underline; text-underline-offset: 3px; }
.prose a:hover { color: var(--text); }
.prose ul, .prose ol {
  margin-bottom: var(--space-5);
  padding-left: var(--space-6);
}
.prose ul { list-style: none; padding-left: 0; }
.prose ul li {
  padding-left: var(--space-5);
  position: relative;
  margin-bottom: var(--space-2);
}
.prose ul li::before {
  content: '—';
  position: absolute;
  left: 0;
  color: var(--accent);
  font-weight: 400;
}
.prose ol { list-style: decimal; }
.prose ol li { margin-bottom: var(--space-2); }
.prose blockquote {
  border-left: 2px solid var(--accent);
  padding: var(--space-4) var(--space-6);
  margin: var(--space-8) 0;
  background: var(--bg-1);
  border-radius: 0 var(--radius) var(--radius) 0;
  font-size: 1.0625rem;
  color: var(--text);
  font-style: normal;
}
.prose blockquote p:last-child { margin-bottom: 0; }
.prose code {
  font-family: var(--font-mono);
  font-size: 0.875em;
  background: var(--bg-2);
  color: var(--accent-text);
  padding: 0.15em 0.4em;
  border-radius: var(--radius);
  border: 1px solid var(--border-2);
}
.prose pre {
  background: var(--bg-1);
  border: 1px solid var(--border);
  border-radius: var(--radius-2);
  padding: var(--space-6);
  overflow-x: auto;
  margin: var(--space-6) 0;
}
.prose pre code {
  background: none;
  border: none;
  padding: 0;
  font-size: 0.9rem;
  color: var(--text);
}
.prose hr {
  border: none;
  border-top: 1px solid var(--border);
  margin: var(--space-10) 0;
}
.prose table {
  width: 100%;
  border-collapse: collapse;
  margin: var(--space-6) 0;
  font-size: 0.9375rem;
}
.prose th {
  text-align: left;
  padding: var(--space-3) var(--space-4);
  background: var(--bg-2);
  color: var(--text);
  font-weight: 600;
  border-bottom: 1px solid var(--border-2);
}
.prose td {
  padding: var(--space-3) var(--space-4);
  border-bottom: 1px solid var(--border);
  color: var(--text-2);
}

/* 18. Blog */
.blog-featured {
  display: grid;
  grid-template-columns: 1fr 280px;
  gap: var(--space-8);
  background: var(--bg-1);
  border: 1px solid var(--border);
  border-radius: var(--radius-2);
  padding: var(--space-8);
  margin-bottom: var(--space-2);
  transition: border-color var(--transition), transform var(--transition);
}
.blog-featured:hover { border-color: var(--border-2); transform: translateY(-2px); }
.blog-featured__visual {
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 160px;
  color: var(--text-3);
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  padding: var(--space-6);
  text-align: center;
}
@media (max-width: 768px) {
  .blog-featured { grid-template-columns: 1fr; }
  .blog-featured__visual { display: none; }
}

.blog-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-5);
  margin-top: var(--space-10);
}
.blog-card {
  display: flex;
  flex-direction: column;
  background: var(--bg-1);
  border: 1px solid var(--border);
  border-radius: var(--radius-2);
  overflow: hidden;
  transition: border-color var(--transition), transform var(--transition);
}
.blog-card:hover { border-color: var(--border-2); transform: translateY(-2px); }
.blog-card__body { padding: var(--space-5); flex: 1; display: flex; flex-direction: column; }
.blog-card__tags {
  display: flex;
  gap: var(--space-2);
  flex-wrap: wrap;
  margin-bottom: var(--space-3);
}
.blog-card__tag {
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent-text);
  font-family: var(--font-mono);
}
.blog-card__title {
  font-size: 1.0625rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text);
  margin-bottom: var(--space-3);
  line-height: 1.35;
}
.blog-card__excerpt {
  font-size: 0.875rem;
  color: var(--text-2);
  line-height: 1.6;
  flex: 1;
  margin-bottom: var(--space-4);
}
.blog-card__meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.8125rem;
  color: var(--text-3);
  border-top: 1px solid var(--border);
  padding-top: var(--space-3);
  margin-top: auto;
}
.blog-card__read { color: var(--accent-text); font-weight: 500; }

/* Blog single */
.blog-article {
  padding-top: var(--space-8);
}
.blog-article__header {
  padding: calc(var(--nav-h) + var(--space-12)) 0 var(--space-12);
  border-bottom: 1px solid var(--border);
  max-width: var(--prose-w);
}
.blog-article__tags {
  display: flex;
  gap: var(--space-2);
  margin-bottom: var(--space-5);
}
.blog-article__tag {
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent-text);
  font-family: var(--font-mono);
  padding: 2px var(--space-2);
  background: var(--tag-bg);
  border-radius: var(--radius);
}
.blog-article__title {
  font-size: clamp(1.75rem, 3.5vw, 2.75rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  margin-bottom: var(--space-5);
  line-height: 1.15;
}
.blog-article__meta {
  font-size: 0.875rem;
  color: var(--text-3);
  display: flex;
  gap: var(--space-4);
}
.blog-article__meta span { display: flex; align-items: center; gap: var(--space-2); }
.blog-article__content {
  padding: var(--space-12) 0;
  max-width: var(--prose-w);
}
/* Reading progress */
.reading-progress {
  position: fixed;
  top: var(--nav-h);
  left: 0;
  height: 2px;
  background: var(--accent);
  z-index: 99;
  transition: width 0.1s linear;
}

/* 19. About page */
.about-intro {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: var(--space-16);
  align-items: start;
  padding-top: var(--space-16);
}
.about-photo {
  width: 100%;
  aspect-ratio: 1;
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-2);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-3);
  font-size: 0.875rem;
  text-align: center;
  overflow: hidden;
}
.about-photo img { width: 100%; height: 100%; object-fit: cover; }
.about-values {
  margin-top: var(--space-16);
}
.values-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-4);
  margin-top: var(--space-8);
}
.value-item {
  padding: var(--space-5);
  background: var(--bg-1);
  border: 1px solid var(--border);
  border-radius: var(--radius-2);
}
.value-item__title {
  font-size: 0.9375rem;
  font-weight: 700;
  margin-bottom: var(--space-2);
}
.value-item__desc {
  font-size: 0.875rem;
  color: var(--text-2);
  line-height: 1.6;
}

/* 20. Contact */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 400px;
  gap: var(--space-16);
  align-items: start;
  padding-top: var(--space-16);
}
.contact-form {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}
.form-group { display: flex; flex-direction: column; gap: var(--space-2); }
.form-group label {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-2);
}
.form-group input,
.form-group textarea,
.form-group select {
  background: var(--bg-1);
  border: 1px solid var(--border-2);
  border-radius: var(--radius);
  padding: var(--space-3) var(--space-4);
  font-size: 0.9375rem;
  color: var(--text);
  transition: border-color var(--transition);
  outline: none;
  width: 100%;
}
.form-group input:focus,
.form-group textarea:focus { border-color: var(--accent); }
.form-group textarea { min-height: 140px; resize: vertical; }
.form-group input::placeholder,
.form-group textarea::placeholder { color: var(--text-3); }
.contact-info {
  position: sticky;
  top: calc(var(--nav-h) + var(--space-8));
}
.contact-info__item {
  display: flex;
  gap: var(--space-4);
  padding: var(--space-5) 0;
  border-bottom: 1px solid var(--border);
}
.contact-info__item:first-child { padding-top: 0; }
.contact-info__icon {
  width: 36px;
  height: 36px;
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  color: var(--accent-text);
}
.contact-info__icon svg { width: 16px; height: 16px; }
.contact-info__label {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-3);
  margin-bottom: var(--space-1);
}
.contact-info__value {
  font-size: 0.9375rem;
  color: var(--text);
}
.contact-info__value a { transition: color var(--transition); }
.contact-info__value a:hover { color: var(--accent-text); }

/* 21. 404 */
.error-page {
  min-height: 80vh;
  display: flex;
  align-items: center;
  padding-top: var(--nav-h);
}
.error-page__code {
  font-family: var(--font-mono);
  font-size: clamp(5rem, 15vw, 10rem);
  font-weight: 700;
  color: var(--bg-2);
  line-height: 1;
  margin-bottom: var(--space-4);
}
.error-page__title {
  font-size: 1.75rem;
  font-weight: 700;
  margin-bottom: var(--space-4);
}
.error-page__desc {
  font-size: 1rem;
  color: var(--text-2);
  margin-bottom: var(--space-8);
}

/* 22. Divider */
.divider {
  border: none;
  border-top: 1px solid var(--border);
  margin: 0;
}

/* 23. Stat cards */
.stat-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-4);
  margin-top: var(--space-10);
}
.stat-item {
  padding: var(--space-6);
  background: var(--bg-1);
  border: 1px solid var(--border);
  border-radius: var(--radius-2);
  text-align: center;
}
.stat-item__value {
  font-size: 2rem;
  font-weight: 700;
  letter-spacing: -0.04em;
  color: var(--text);
  font-family: var(--font-mono);
  margin-bottom: var(--space-2);
}
.stat-item__label { font-size: 0.875rem; color: var(--text-2); }

/* 24. AI to Production — Before/After + Qualify */

/* Before / After comparison */
.ia-comparison {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  border: 1px solid var(--border);
  border-radius: var(--radius-2);
  overflow: hidden;
  margin: var(--space-8) 0;
}
.ia-comparison__col {
  padding: var(--space-8);
  background: var(--bg-1);
}
.ia-comparison__col--after {
  background: var(--bg-2);
  border-left: 1px solid var(--border);
  position: relative;
}
.ia-comparison__col--after::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--accent), transparent);
}
.ia-comparison__col h3 {
  font-size: 0.875rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--text-3);
  margin-bottom: var(--space-5);
}
.ia-comparison__col--after h3 {
  color: var(--accent-text);
}
.ia-comparison__list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}
.ia-comparison__list li {
  font-size: 0.9375rem;
  color: var(--text-2);
  padding-left: var(--space-5);
  position: relative;
  line-height: 1.5;
}
.ia-comparison__list li::before {
  position: absolute;
  left: 0;
  font-size: 0.8rem;
}
.ia-comparison__col:not(.ia-comparison__col--after) .ia-comparison__list li::before {
  content: '·';
  color: var(--text-3);
}
.ia-comparison__col--after .ia-comparison__list li::before {
  content: '✓';
  color: var(--accent);
  font-weight: 700;
}

/* Is this for you? qualify grid */
.ia-qualify {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4);
  margin: var(--space-8) 0;
}
.ia-qualify__col {
  padding: var(--space-6);
  border-radius: var(--radius-2);
  border: 1px solid var(--border);
}
.ia-qualify__col--yes {
  background: var(--bg-1);
}
.ia-qualify__col--no {
  background: var(--bg-1);
  opacity: 0.75;
}
.ia-qualify__col h3 {
  font-size: 0.875rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  margin-bottom: var(--space-4);
}
.ia-qualify__col--yes h3 { color: var(--accent-text); }
.ia-qualify__col--no  h3 { color: var(--text-3); }
/* Inherit prose list style inside these divs */
.ia-qualify__col ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}
.ia-qualify__col ul li {
  font-size: 0.9375rem;
  color: var(--text-2);
  padding-left: var(--space-5);
  position: relative;
  line-height: 1.5;
}
.ia-qualify__col--yes ul li::before {
  content: '→';
  position: absolute;
  left: 0;
  color: var(--accent);
  font-size: 0.8rem;
}
.ia-qualify__col--no ul li::before {
  content: '—';
  position: absolute;
  left: 0;
  color: var(--text-3);
  font-size: 0.8rem;
}

@media (max-width: 768px) {
  .ia-comparison { grid-template-columns: 1fr; }
  .ia-comparison__col--after { border-left: none; border-top: 1px solid var(--border); }
  .ia-qualify { grid-template-columns: 1fr; }
}

/* 25. Badge */
.badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  padding: 3px var(--space-2);
  border-radius: var(--radius);
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
.badge--blue { background: var(--tag-bg); color: var(--tag-text); }
.badge--green { background: rgba(52, 211, 153, 0.1); color: var(--green); }

/* 26. Horizontal rule with text */
.hr-text {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  color: var(--text-3);
  font-size: 0.8125rem;
  margin: var(--space-12) 0;
}
.hr-text::before, .hr-text::after {
  content: '';
  flex: 1;
  border-top: 1px solid var(--border);
}

/* 27. Fade in animation */
.fade-in {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}
.fade-in.visible {
  opacity: 1;
  transform: none;
}

/* 28. Skip to content (a11y) */
.skip-link {
  position: absolute;
  top: -40px;
  left: var(--space-4);
  background: var(--accent);
  color: #fff;
  padding: var(--space-2) var(--space-4);
  z-index: 9999;
  border-radius: var(--radius);
  font-size: 0.875rem;
  font-weight: 600;
  transition: top var(--transition);
}
.skip-link:focus { top: var(--space-2); }

/* 29. Inline code highlight (syntax override) */
.highlight {
  border-radius: var(--radius-2);
  overflow: hidden;
  margin: var(--space-6) 0;
}
.highlight pre {
  margin: 0;
  padding: var(--space-6);
  font-family: var(--font-mono);
  font-size: 0.9rem;
  line-height: 1.65;
  overflow-x: auto;
}

/* 30. Related posts */
.related-posts { margin-top: var(--space-16); }
.related-posts__title {
  font-size: 1.125rem;
  font-weight: 700;
  margin-bottom: var(--space-6);
  color: var(--text-2);
}
.related-posts__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-4);
}

/* ============================================================
   Responsive
   ============================================================ */
@media (max-width: 1024px) {
  .footer__inner { grid-template-columns: 1fr 1fr; }
  .capability-grid { grid-template-columns: repeat(3, 1fr); }
  .service-page__grid { grid-template-columns: 1fr; }
  .service-page__sidebar { position: static; }
  .about-intro { grid-template-columns: 1fr; }
  .about-photo { max-width: 320px; }
}

@media (max-width: 768px) {
  :root { --nav-h: 60px; }
  .container { padding: 0 var(--space-4); }
  .section { padding: var(--space-16) 0; }
  .section--lg { padding: var(--space-20) 0; }

  .nav__links { display: none; }
  .nav__burger { display: flex; }
  .nav__logo-img { height: 42px; }

  .hero { min-height: 80vh; }
  .hero__title { font-size: 2.25rem; }
  .hero__subtitle { font-size: 1rem; }

  .services-grid { grid-template-columns: 1fr; }
  .capability-grid { grid-template-columns: repeat(2, 1fr); }
  .blog-grid { grid-template-columns: 1fr; }
  .values-grid { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .stat-row { grid-template-columns: 1fr; }

  .footer__inner { grid-template-columns: 1fr; gap: var(--space-8); }
  .footer__bottom { flex-direction: column; gap: var(--space-4); text-align: center; }
  .footer__legal { flex-direction: column; gap: var(--space-2); align-items: center; }

  .cta-banner { padding: var(--space-10) var(--space-6); }
  .cta-banner__actions { flex-direction: column; align-items: center; }
  .page-header { padding: calc(var(--nav-h) + var(--space-10)) 0 var(--space-10); }
  .hero__actions { flex-direction: column; align-items: flex-start; }
  .process { flex-direction: column; gap: var(--space-6); }
  .process::before { display: none; }
  .related-posts__grid { grid-template-columns: 1fr; }
}

@media (max-width: 480px) {
  .services-grid { gap: var(--space-3); }
  .capability-grid { grid-template-columns: 1fr 1fr; }
}