/* Integrate — static site stylesheet
   No framework, no webfonts: system stack, ~10 KB.
   ------------------------------------------------------------------ */

:root {
  --bg: #1a1a1a;
  --bg-black: #000;
  --fg: #fff;
  --muted: #b5b5b5;
  --accent: #ff0;
  --accent-dark: #999900;
  --gray-3: #333;
  --card-light: #eee;
  --max-w: 1200px;
  --header-h: 120px;
  --blur-1: clamp(400px, 60vw, 60vw);
  --blur-2: clamp(300px, 40vw, 40vw);
  --blur-amount: clamp(40px, 5vw, 90px);
  --font: "Helvetica Neue", Helvetica, Arial, sans-serif;
  color-scheme: dark;
}

/* Reset ---------------------------------------------------------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--fg);
  line-height: 1.6;
  font-weight: 300;
  font-size: 16px;
  overflow-x: hidden;
}
img, svg { display: block; max-width: 100%; height: auto; }
a { color: inherit; }
ul { list-style: none; }
button { font: inherit; }
::selection { background: var(--accent); color: var(--bg-black); }
[id] { scroll-margin-top: 90px; }

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

/* Accessibility utilities ---------------------------------------- */
.visually-hidden {
  position: absolute !important; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}
.skip-link:focus {
  position: fixed; top: 12px; left: 12px; z-index: 100000; width: auto; height: auto; clip: auto;
  padding: 12px 20px; background: var(--accent); color: var(--bg-black); font-weight: 700;
  text-decoration: none; border-radius: 4px; outline: 2px solid var(--bg-black); outline-offset: 2px;
}
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }

/* Layout --------------------------------------------------------- */
.container { max-width: var(--max-w); margin: 0 auto; padding: 0 20px; }
.row { display: flex; flex-wrap: wrap; margin: 0 -15px; }
.row > * { padding: 0 15px; flex: 0 0 100%; max-width: 100%; }
@media (min-width: 768px) {
  .col-2 { flex-basis: 16.6667%; max-width: 16.6667%; }
  .col-3 { flex-basis: 25%; max-width: 25%; }
  .col-4 { flex-basis: 33.3333%; max-width: 33.3333%; }
  .col-6 { flex-basis: 50%; max-width: 50%; }
  .col-8 { flex-basis: 66.6667%; max-width: 66.6667%; }
}

h1, h2, h3 { line-height: 1.2; }
h2 {
  text-transform: uppercase; font-size: 14px; font-weight: 900; letter-spacing: 3px;
  display: inline-flex; margin-bottom: 22px;
}
h3 { margin-bottom: 20px; font-size: 1.35rem; font-weight: 700; }
p + p { margin-top: 1em; }
.lede { font-size: 1.25rem; }
.btn {
  display: inline-block; background: var(--accent); color: var(--bg-black); border: 0;
  padding: 15px 30px; border-radius: 5px; font-size: 1em; font-weight: 700; cursor: pointer;
  text-decoration: none; transition: background-color .3s ease;
}
.btn:hover, .btn:focus-visible { background: #e6e6e6; }

/* Header --------------------------------------------------------- */
.main-header { height: var(--header-h); position: relative; }
.site-header {
  position: fixed; top: 0; left: 0; width: 100%; height: var(--header-h); z-index: 10;
  display: flex; align-items: center; transition: background-color .3s ease, height .3s ease;
}
.site-header.scrolled { background: var(--bg-black); height: 80px; }
.site-header .container { display: flex; justify-content: space-between; align-items: center; width: 100%; }
.logo { display: flex; align-items: center; }
.logo svg { width: 160px; fill: var(--fg); }
.main-nav ul { display: flex; align-items: center; gap: 20px; }
.main-nav a { color: var(--fg); text-decoration: none; font-size: 14px; text-transform: uppercase; }
.main-nav a:hover { color: var(--accent); }
.main-nav a.contacts, .mobile-nav a.contacts {
  border: 1px solid var(--accent); border-radius: 2rem; color: var(--accent); padding: 8px 25px; letter-spacing: .03rem;
}
.mobile-menu-toggle {
  display: none; flex-direction: column; justify-content: center; gap: 5px; width: 30px; height: 25px;
  background: none; border: 0; cursor: pointer; z-index: 1001;
}
.mobile-menu-toggle span { height: 3px; background: var(--fg); width: 100%; display: block; transition: transform .3s, opacity .3s; }
.mobile-menu-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(8px) rotate(45deg); }
.mobile-menu-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.mobile-menu-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-8px) rotate(-45deg); }
.mobile-nav {
  position: fixed; inset: 0; background: var(--bg-black); padding: 100px 20px 20px; z-index: 1000;
  transform: translateX(100%); transition: transform .3s ease; visibility: hidden;
}
.mobile-nav.active { transform: none; visibility: visible; }
.mobile-nav li { margin: 20px 0; }
.mobile-nav a { color: var(--fg); font-size: 20px; text-decoration: none; text-transform: uppercase; }
@media (max-width: 768px) {
  .main-nav { display: none; }
  .mobile-menu-toggle { display: flex; }
}

/* Hero ----------------------------------------------------------- */
.hero-section {
  display: flex; align-items: center; justify-content: center; text-align: left;
  min-height: calc(100vh - var(--header-h)); min-height: calc(100svh - var(--header-h)); position: relative;
}
.hero-content { position: relative; z-index: 4; display: flex; flex-direction: column; align-items: flex-start; }
.hero-content h1 {
  font-size: clamp(2.8rem, 9vw, 144px); font-weight: 700; line-height: 1; letter-spacing: -.03em; margin-bottom: 20px;
}
.hero-content p { font-size: 1.2em; margin-bottom: 30px; max-width: 46ch; }

/* OpenAI badge in hero (absolute, bottom-right of the hero only) */
.hero-badge { position: absolute; right: 20px; bottom: 20px; z-index: 4; width: 160px; border-radius: 10px; box-shadow: 0 4px 16px rgba(0,0,0,.35); }
@media (max-width: 768px) { .hero-badge { width: 120px; right: 16px; bottom: 16px; } }

/* Blur blobs (CSS-only, replaces GSAP) --------------------------- */
.blur-wrapper { position: absolute; inset: 0 0 auto 0; height: 130vh; z-index: 0; opacity: .2; overflow: hidden; pointer-events: none; }
.blur { position: absolute; border-radius: 50%; filter: blur(var(--blur-amount)); background: var(--accent-dark); will-change: transform; }
.blur:nth-child(1) { height: var(--blur-1); width: calc(var(--blur-1) * 1.1); top: -10vh; left: -10vw; animation: drift1 18s ease-in-out infinite alternate; }
.blur:nth-child(2) { background: var(--accent); height: var(--blur-2); width: calc(var(--blur-2) * .75); top: 20vh; right: 10vw; animation: drift2 14s ease-in-out infinite alternate; }
@keyframes drift1 { from { transform: translate(0, 0) rotate(-20deg); } to { transform: translate(35vw, 18vh) rotate(60deg); } }
@keyframes drift2 { from { transform: translate(0, 0) rotate(30deg); } to { transform: translate(-25vw, 25vh) rotate(-40deg); } }

/* Services ------------------------------------------------------- */
.services-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); }
.service-card {
  background: var(--bg); border-right: 1px solid var(--fg); border-bottom: 1px solid var(--fg); padding: 50px; min-height: 600px;
  display: flex; flex-direction: column; justify-content: space-between; position: relative; z-index: 1;
}
.service-card:last-child { border-right: 0; }
.service-card > span { font-weight: 700; }
.service-card .icon-wrapper { margin-bottom: 20px; }
.service-card .icon-wrapper svg { width: 150px; }
.service-card h3 { margin-bottom: 10px; text-transform: uppercase; color: var(--accent); }
.service-card p { margin-bottom: 20px; }
.service-card ul { padding-left: 14px; font-size: 12px; list-style: disc outside; }

/* Mission -------------------------------------------------------- */
.mission-section { padding: 120px 0; position: relative; }
.mission-section > svg { position: absolute; left: 0; top: 0; max-width: 60vw; fill: var(--gray-3); z-index: 0; }
.mission-content { position: relative; z-index: 3; }
.mission-content h2 { margin-bottom: 30px; }
.mission-content .tagline { font-size: 1.35rem; font-weight: 700; margin-bottom: 20px; }
.mission-content .process { margin-top: 100px; padding-top: 100px; }
.mission-content .process .text { padding-bottom: 60px; }
.mission-content .process h3 { position: relative; padding-bottom: 12px; }
.mission-content .process h3::after { content: ""; position: absolute; left: 0; bottom: 0; width: 80px; height: 1px; background: var(--accent); }

/* Clients -------------------------------------------------------- */
.values-section { padding: 100px 0; }
.values-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); gap: 30px; margin-top: 50px; }
.value-card { padding: 30px; display: flex; align-items: center; justify-content: center; }
.value-card img { max-width: 120px; filter: invert(1); }
.value-card figcaption { font-size: 12px; color: var(--muted); margin-top: 8px; }
.value-card figure { text-align: center; }

/* FAQ ------------------------------------------------------------ */
.faq-section { padding: 60px 0 100px; }
.faq-section details { border-top: 1px solid var(--gray-3); padding: 18px 0; }
.faq-section details:last-of-type { border-bottom: 1px solid var(--gray-3); }
.faq-section summary { cursor: pointer; font-weight: 700; font-size: 1.1rem; list-style: none; display: flex; justify-content: space-between; gap: 20px; }
.faq-section summary::-webkit-details-marker { display: none; }
.faq-section summary::after { content: "+"; color: var(--accent); font-weight: 300; font-size: 1.5rem; line-height: 1; }
.faq-section details[open] summary::after { content: "–"; }
.faq-section details p { margin-top: 12px; max-width: 70ch; color: var(--muted); }

/* Contact -------------------------------------------------------- */
.contact-section { padding: 100px 0; }
.contact-content h2 { margin-bottom: 10px; }
.contact-content p { margin-bottom: 30px; }
.contact-content a { color: var(--accent); }
.contact-form { display: grid; gap: 16px; }
.contact-form label { display: block; font-size: 14px; margin-bottom: 6px; }
.contact-form input, .contact-form textarea {
  width: 100%; background: var(--bg-black); color: var(--fg); border: 1px solid var(--gray-3); padding: 12px 14px; font: inherit; border-radius: 0;
}
.contact-form input:focus, .contact-form textarea:focus { border-color: var(--accent); outline: none; }
.contact-form textarea { min-height: 140px; resize: vertical; }
.contact-form .consent { display: flex; gap: 10px; align-items: flex-start; font-size: 13px; color: var(--muted); }
.contact-form .consent input { width: auto; margin-top: 4px; }
.contact-form .honeypot { position: absolute; left: -9999px; }
.contact-form .form-status { font-size: 14px; min-height: 1.4em; }
.contact-form .form-status.ok { color: #7CFC9E; }
.contact-form .form-status.err { color: #FF7A7A; }

/* Footer --------------------------------------------------------- */
.main-footer { background: var(--bg-black); padding: 40px 0 20px; font-size: 14px; }
.main-footer a { text-decoration: none; color: var(--accent); }
.main-footer address { font-style: normal; }
.main-footer .company-data, .main-footer .contacts-col { margin-bottom: 20px; }
.main-footer .badges { display: flex; align-items: center; gap: 16px; flex-wrap: wrap; margin-bottom: 20px; }
@media (min-width: 768px) { .main-footer .badges { justify-content: flex-end; } }
.main-footer .badges img { width: 100px; }
.main-footer .badges img:first-child { width: 150px; border-radius: 8px; }
.footer-nav { padding-top: 40px; }
.footer-nav ul { display: flex; flex-wrap: wrap; gap: 20px; font-size: 12px; }

/* Responsive ----------------------------------------------------- */
@media (max-width: 768px) {
  .service-card { padding: 30px 20px; min-height: 0; border-right: 0; }
  .mission-section { padding: 80px 0; }
  .mission-content .process { margin-top: 60px; padding-top: 40px; }
  .mission-content .process .col-4 { margin-bottom: 30px; }
  .contact-section .col-6 + .col-6 { margin-top: 40px; }
  .value-card { padding: 15px; }
}