:root {
  --bg: #0b0d10;
  --surface: #12161b;
  --border: #222831;
  --text: #e6e8eb;
  --muted: #8b939e;
  --accent: #5eead4;
  --accent-dim: rgba(94, 234, 212, 0.12);
  --radius: 10px;
  --mono: "JetBrains Mono", ui-monospace, monospace;
  --sans: "Inter", system-ui, -apple-system, sans-serif;
}

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

html { scroll-behavior: smooth; scroll-padding-top: 72px; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }

.container { width: 100%; max-width: 960px; margin: 0 auto; padding: 0 16px; }
@media (min-width: 640px) { .container { padding: 0 32px; } }

.mono { font-family: var(--mono); }
.muted { color: var(--muted); }
.accent { color: var(--accent); }

/* Nav */
.nav {
  position: sticky; top: 0; z-index: 10;
  background: rgba(11, 13, 16, 0.85);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}
.nav__inner { display: flex; align-items: center; gap: 24px; height: 60px; }
.nav__logo { font-size: 14px; color: var(--accent); }
.nav__links { display: flex; gap: 20px; margin-left: auto; font-size: 14px; }
.nav__links a { color: var(--muted); transition: color .2s; }
.nav__links a:hover { color: var(--text); }
@media (max-width: 760px) { .nav__links { display: none; } .nav .switch { margin-left: auto; } }

.switch { display: flex; border: 1px solid var(--border); border-radius: 6px; overflow: hidden; flex-shrink: 0; }
.switch button {
  background: none; border: 0; color: var(--muted);
  font: inherit; font-size: 12px; padding: 4px 10px; cursor: pointer;
}
.switch button[aria-pressed="true"] { background: var(--accent-dim); color: var(--accent); }

/* Hero */
.hero { padding: 120px 16px 100px; }
@media (min-width: 640px) { .hero { padding: 160px 32px 120px; } }
.hero__prompt { font-size: 14px; margin-bottom: 16px; }
.hero__name { font-size: clamp(40px, 8vw, 72px); line-height: 1.05; letter-spacing: -0.03em; font-weight: 700; }
.hero__role { font-size: clamp(16px, 3vw, 22px); color: var(--accent); margin-top: 12px; }
.cursor { animation: blink 1s steps(1) infinite; }
@keyframes blink { 50% { opacity: 0; } }
.hero__tagline { max-width: 560px; color: var(--muted); font-size: 18px; margin-top: 24px; }
.hero__meta { display: flex; flex-wrap: wrap; align-items: center; gap: 16px; margin-top: 24px; font-size: 13px; }
.hero__cta { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 40px; }

.badge {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--mono); font-size: 12px;
  padding: 4px 10px; border-radius: 999px;
  background: var(--accent-dim); color: var(--accent);
}
.badge::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: var(--accent); }
.badge:empty { display: none; }

.btn {
  display: inline-block; padding: 10px 20px;
  border: 1px solid var(--border); border-radius: 8px;
  font-size: 14px; font-weight: 500;
  transition: border-color .2s, background .2s;
}
.btn:hover { border-color: var(--accent); }
.btn--primary { background: var(--accent); color: #04211c; border-color: var(--accent); }
.btn--primary:hover { background: #99f6e4; }

/* Sections */
.section { padding: 80px 16px; }
@media (min-width: 640px) { .section { padding: 96px 32px; } }
.section__title {
  display: flex; align-items: center; gap: 12px;
  font-size: 26px; letter-spacing: -0.02em; margin-bottom: 40px;
}
.section__title .mono { font-size: 18px; font-weight: 400; }
.section__title::after { content: ""; flex: 1; height: 1px; background: var(--border); margin-left: 12px; }

/* About */
.about { display: grid; gap: 40px; }
@media (min-width: 768px) { .about { grid-template-columns: 3fr 2fr; } }
.about__text p { color: var(--muted); }
.about__text p + p { margin-top: 16px; }
.skills { display: grid; gap: 20px; }
.skills__heading { font-size: 17px; margin-bottom: 16px; }
.skills h3 { font-family: var(--mono); font-size: 13px; font-weight: 500; color: var(--accent); margin-bottom: 8px; }
.tags { display: flex; flex-wrap: wrap; gap: 6px; }
.tag {
  font-family: var(--mono); font-size: 12px;
  padding: 3px 9px; border-radius: 6px;
  background: var(--surface); border: 1px solid var(--border); color: var(--muted);
}

/* Projects */
.projects { display: grid; gap: 16px; }
@media (min-width: 720px) { .projects { grid-template-columns: repeat(2, 1fr); } }
.card {
  display: flex; flex-direction: column; gap: 12px;
  padding: 24px; border-radius: var(--radius);
  background: var(--surface); border: 1px solid var(--border);
  transition: border-color .2s, transform .2s;
}
.card:hover { border-color: #33404d; transform: translateY(-2px); }
.card__head { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.card__title { font-size: 18px; font-weight: 600; }
.card__links { display: flex; gap: 14px; font-family: var(--mono); font-size: 12px; }
.card__links a { color: var(--muted); }
.card__links a:hover { color: var(--accent); }
.card__desc { color: var(--muted); font-size: 15px; flex: 1; }

/* Contact */
.contact__text { color: var(--muted); max-width: 520px; }
.contact__email {
  display: inline-block; margin-top: 24px;
  font-size: clamp(18px, 4vw, 28px); color: var(--accent);
  border-bottom: 1px solid transparent; transition: border-color .2s;
  word-break: break-all;
}
.contact__email:hover { border-color: var(--accent); }
.contact__links { display: flex; flex-wrap: wrap; gap: 20px; margin-top: 32px; font-size: 14px; }
.contact__links a { color: var(--muted); }
.contact__links a:hover { color: var(--text); }


/* Services */
.services__bar { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 32px; }
.services__rate { font-size: 13px; }
.service-group + .service-group { margin-top: 40px; }
.service-group__title { font-size: 13px; font-weight: 500; color: var(--accent); text-transform: uppercase; letter-spacing: .08em; margin-bottom: 16px; }
.services { display: grid; gap: 12px; }
@media (min-width: 720px) { .services { grid-template-columns: repeat(2, 1fr); } }
.service {
  display: flex; flex-direction: column; gap: 8px;
  padding: 20px 22px; border-radius: var(--radius);
  background: var(--surface); border: 1px solid var(--border);
  transition: border-color .2s;
}
.service:hover { border-color: #33404d; }
.service__head { display: flex; flex-wrap: wrap; align-items: baseline; justify-content: space-between; gap: 4px 16px; }
.service__title { font-size: 16px; font-weight: 600; }
.service__price { font-size: 15px; color: var(--accent); white-space: nowrap; }
.service__from, .service__unit { color: var(--muted); font-size: 12px; }
.service__desc { color: var(--muted); font-size: 14px; }
.services__note { font-size: 13px; margin-top: 24px; max-width: 720px; }

/* Steps */
.steps { display: grid; gap: 12px; counter-reset: step; }
@media (min-width: 720px) { .steps { grid-template-columns: repeat(5, 1fr); } }
.step { padding: 20px; border-radius: var(--radius); border: 1px solid var(--border); }
.step__num { font-size: 12px; color: var(--accent); }
.step__title { font-size: 16px; margin-top: 8px; }
.step__text { font-size: 14px; color: var(--muted); margin-top: 4px; }

/* Work */
#work .projects { margin-top: 48px; }
.projects__note { font-size: 13px; margin-top: 16px; max-width: 720px; }

/* Requisites */
.requisites { margin-top: 48px; padding: 24px; border-radius: var(--radius); background: var(--surface); border: 1px solid var(--border); max-width: 640px; font-size: 14px; }
.requisites__title { font-size: 13px; font-weight: 500; color: var(--accent); margin-bottom: 12px; }
.requisites div { display: grid; grid-template-columns: 120px 1fr; gap: 12px; padding: 6px 0; border-top: 1px solid var(--border); }
.requisites dt { color: var(--muted); }
.requisites dd { overflow-wrap: anywhere; }
@media (max-width: 480px) { .requisites div { grid-template-columns: 1fr; gap: 0; } }

/* Footer */
.footer { border-top: 1px solid var(--border); padding: 32px 0 40px; font-size: 13px; }
.footer__inner { display: flex; flex-wrap: wrap; align-items: center; gap: 16px 32px; }
.footer__fop { display: flex; flex-wrap: wrap; gap: 4px 16px; font-size: 12px; width: 100%; }
.footer__links { display: flex; flex-wrap: wrap; gap: 8px 20px; }
.footer__links a { color: var(--muted); }
.footer__links a:hover { color: var(--text); }
.cards { display: flex; align-items: center; gap: 8px; margin-left: auto; }
.cards > span { display: inline-flex; align-items: center; justify-content: center; height: 26px; padding: 0 8px; border-radius: 4px; background: #fff; }
.cards__visa { font: italic 800 13px/1 var(--sans); color: #1a1f71; letter-spacing: .02em; }
.cards__mc i { display: block; width: 16px; height: 16px; border-radius: 50%; background: #eb001b; }
.cards__mc i + i { background: #f79e1b; margin-left: -6px; mix-blend-mode: multiply; }

/* Legal pages */
.legal { padding-top: 64px; padding-bottom: 80px; max-width: 760px; }
.legal__back { font-size: 13px; color: var(--muted); }
.legal__back:hover { color: var(--accent); }
.legal h1 { font-size: clamp(28px, 5vw, 40px); letter-spacing: -0.02em; margin-top: 24px; line-height: 1.15; }
.legal__date { font-family: var(--mono); font-size: 12px; color: var(--muted); margin-top: 8px; }
.legal h2 { font-size: 19px; margin: 40px 0 12px; }
.legal p, .legal li { color: #c3c8cf; font-size: 15px; }
.legal p + p { margin-top: 10px; }
.legal ol, .legal ul { padding-left: 20px; margin-top: 8px; display: grid; gap: 6px; }
.legal ol { list-style: decimal; }
.legal ul { list-style: disc; }
.legal a { color: var(--accent); }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .cursor { animation: none; }
}

/* Print (offer, policies) */
@media print {
  :root { --bg: #fff; --surface: #fff; --border: #ccc; --text: #000; --muted: #444; --accent: #000; }
  body { background: #fff; color: #000; font-size: 11pt; }
  .nav, .legal__back, .footer__links, .cards { display: none; }
  .legal { padding-top: 0; padding-bottom: 0; max-width: none; }
  .legal p, .legal li { color: #000; font-size: 10.5pt; }
  .legal a { color: #000; }
  .legal h2 { break-after: avoid; }
  .footer { border-top: 1px solid #ccc; }
}