:root {
  --bg: #0a0a0a;
  --bg-raised: #1a1a18;
  --fg: #f4f4f0;
  --fg-soft: #d6d6d0;
  --muted: #9a9a94;
  --line: #2a2a28;
  --accent: #96db02;
  --wrap: 1120px;
  --gutter: 20px;
}

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

html { scroll-behavior: smooth; scroll-padding-top: 16px; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: Outfit, system-ui, sans-serif;
  font-size: 16px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--fg); text-decoration: none; }
a:hover { color: var(--accent); }
a:focus-visible, button:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

h1, h2, h3, h4, p, ul, dl, dd { margin: 0; }
img { display: block; max-width: 100%; }

.wrap {
  width: 100%;
  max-width: calc(var(--wrap) + 2 * var(--gutter));
  margin: 0 auto;
  padding: 0 var(--gutter);
}

.muted { color: var(--muted); font-size: 15px; }

/* Header */
.site-header { border-bottom: 1px solid var(--line); }
.header-inner { height: 80px; display: flex; align-items: center; justify-content: space-between; }
.logo { font-size: 24px; font-weight: 700; letter-spacing: 0.08em; }
.main-nav { display: flex; align-items: center; gap: 36px; font-size: 17px; }
.main-nav .icon-link { margin: 0 -11px 0 -6px; }

.icon-link {
  display: flex; align-items: center; justify-content: center;
  width: 44px; height: 44px;
}
.main-nav .icon-link svg { width: 22px; height: 22px; }

/* Sections */
.section { margin-top: 144px; padding-top: 72px; border-top: 1px solid var(--line); display: flex; flex-direction: column; gap: 40px; }
.section-first { margin-top: 0; padding-top: 96px; border-top: 0; gap: 48px; }
.section h1, .section h2 { font-size: 48px; font-weight: 600; letter-spacing: -0.01em; line-height: 1.2; }

/* Services */
.services { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 48px 32px; }
.service { display: flex; flex-direction: column; gap: 12px; }
.service h3 { font-size: 20px; font-weight: 600; color: var(--accent); }
.service ul { padding: 0; list-style: none; font-size: 17px; line-height: 1.45; }
.service li { padding: 11px 0; border-bottom: 1px solid var(--line); }

.arrow-link {
  display: inline-flex; align-items: center; gap: 8px; align-self: flex-start;
  min-height: 44px; font-size: 16px; font-weight: 500; color: var(--accent);
}
.arrow-link:hover { color: var(--fg); }

/* Projects */
.group-head { display: flex; align-items: baseline; justify-content: space-between; }
.group-head h3 { font-size: 26px; font-weight: 600; }
.group-head-spaced { margin-top: 48px; }

.cards { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 64px 40px; }
.card { display: flex; flex-direction: column; gap: 14px; }
.card-years { font-size: 14px; color: var(--muted); letter-spacing: 0.04em; margin-top: 6px; }
.card h4 { font-size: 22px; line-height: 1.3; font-weight: 600; }
.card-ids { display: flex; flex-direction: column; gap: 2px; font-size: 13px; color: var(--muted); letter-spacing: 0.02em; font-variant-numeric: tabular-nums; }
.card-desc { font-size: 16px; line-height: 1.65; color: var(--fg-soft); white-space: pre-line; }

/* Carousel */
.car {
  position: relative; aspect-ratio: 1 / 1;
  border-radius: 6px; overflow: hidden; background: var(--bg-raised);
  touch-action: pan-y; user-select: none;
}
.car img { width: 100%; height: 100%; object-fit: cover; }
.car img:not(.is-active) { display: none; }

.car-nav {
  position: absolute; top: 50%; transform: translateY(-50%);
  width: 44px; height: 44px; padding: 0; border: 0; border-radius: 50%;
  background: rgba(10, 10, 10, 0.6); color: var(--fg);
  display: flex; align-items: center; justify-content: center; cursor: pointer;
  opacity: 0; transition: opacity 0.15s, background 0.15s;
}
.car-nav:hover { background: rgba(10, 10, 10, 0.85); }
.car-prev { left: 10px; }
.car-next { right: 10px; }
.car:hover .car-nav, .car-nav:focus-visible { opacity: 1; }
@media (hover: none) { .car-nav { display: none; } }

.car-dots { position: absolute; left: 0; right: 0; bottom: 6px; display: flex; justify-content: center; }
.car-dot {
  width: 28px; height: 28px; padding: 0; border: 0; background: transparent; cursor: pointer;
  display: flex; align-items: center; justify-content: center;
}
.car-dot::before {
  content: ""; width: 8px; height: 8px; border-radius: 50%;
  background: rgba(244, 244, 240, 0.45); box-shadow: 0 0 0 1px rgba(0, 0, 0, 0.3);
}
.car-dot[aria-current="true"]::before { background: var(--fg); }

/* Contact */
.contact { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 40px; }
.contact-main { display: flex; flex-direction: column; gap: 20px; }
.contact-email { font-size: 44px; font-weight: 500; letter-spacing: -0.01em; line-height: 1.2; overflow-wrap: anywhere; }
.contact-phone { font-size: 28px; color: var(--fg-soft); }
.contact-details { display: grid; grid-template-columns: 140px 1fr; row-gap: 16px; font-size: 17px; line-height: 1.55; }
.contact-details dt { color: var(--muted); }

/* Footer */
.site-footer { margin-top: 96px; border-top: 1px solid var(--line); }
.footer-inner { min-height: 96px; display: flex; align-items: center; justify-content: space-between; gap: 16px; font-size: 15px; color: var(--muted); }
.social { display: flex; gap: 4px; margin: 0 -10px; }
.social a { color: var(--muted); }
.social a:hover { color: var(--accent); }

/* Tablet */
@media (max-width: 1000px) {
  .services { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .cards { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 56px 32px; }
}

/* Phone */
@media (max-width: 640px) {
  .header-inner { height: 64px; }
  .logo { font-size: 20px; }
  .main-nav { gap: 16px; font-size: 15px; }
  .main-nav .icon-link { margin: 0 -11px 0 -8px; }

  .section { margin-top: 96px; padding-top: 48px; gap: 28px; }
  .section-first { margin-top: 0; padding-top: 48px; gap: 32px; }
  .section h1, .section h2 { font-size: 36px; }

  .services { grid-template-columns: 1fr; gap: 36px; }
  .service h3 { font-size: 18px; }

  .group-head h3 { font-size: 22px; }
  .group-head-spaced { margin-top: 32px; }
  .cards { grid-template-columns: 1fr; gap: 48px; }
  .card { gap: 12px; }
  .card h4 { font-size: 21px; }
  .card-desc { line-height: 1.6; }

  .contact { grid-template-columns: 1fr; gap: 32px; }
  .contact-email { font-size: 30px; }
  .contact-phone { font-size: 22px; }
  .contact-details { grid-template-columns: 1fr; row-gap: 4px; font-size: 16px; }
  .contact-details dd { margin-bottom: 12px; }

  .footer-inner { flex-direction: column-reverse; align-items: flex-start; padding-top: 28px; padding-bottom: 36px; font-size: 14px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}