:root {
  --yellow: #ffff64;
  --yellow-soft: #ffffd6;
  --black: #0a0a0a;
  --ink: #111111;
  --gray: #6b6b6b;
  --line: #e8e8e8;
  --white: #ffffff;
  --radius: 14px;
  --maxw: 1120px;
  --font: "Inter", -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font);
  color: var(--ink);
  background: var(--white);
  -webkit-font-smoothing: antialiased;
  line-height: 1.55;
}

a { color: inherit; text-decoration: none; }

[id] { scroll-margin-top: 84px; }

a:focus-visible,
button:focus-visible {
  outline: 3px solid var(--yellow);
  outline-offset: 2px;
}

.container {
  width: 100%;
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 24px;
}

/* ---------- Шапка ---------- */
.header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: var(--black);
  border-bottom: 3px solid var(--yellow);
}

.header-inner {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 24px;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo { display: flex; align-items: center; gap: 10px; }

.logo-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  background: var(--yellow);
  color: var(--black);
  font-weight: 900;
  font-size: 16px;
  letter-spacing: -0.5px;
  border-radius: 8px;
  transform: rotate(-4deg);
}

.logo-text {
  color: var(--white);
  font-weight: 800;
  font-size: 19px;
  letter-spacing: -0.5px;
}

.nav { display: flex; align-items: center; gap: 28px; }

.nav-link {
  color: #cfcfcf;
  font-weight: 500;
  font-size: 15px;
  transition: color 0.15s ease;
}

.nav-link:hover { color: var(--yellow); }

.nav-link-accent {
  background: var(--yellow);
  color: var(--black);
  font-weight: 700;
  padding: 8px 16px;
  border-radius: 8px;
  transition: transform 0.15s ease;
}

.nav-link-accent:hover { transform: translateY(-1px); color: var(--black); }

.burger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}

.burger span {
  width: 22px;
  height: 3px;
  background: var(--yellow);
  border-radius: 2px;
}

/* ---------- Герой ---------- */
.hero {
  padding: 90px 0 80px;
  background-color: var(--white);
  background-image:
    radial-gradient(rgba(0, 0, 0, 0.035) 1px, transparent 1.5px),
    radial-gradient(circle at 85% 20%, rgba(255,255,100,0.22), transparent 45%);
  background-size: 22px 22px, auto;
  border-bottom: 1px solid var(--line);
}

.hero-eyebrow {
  margin: 0 0 20px;
  font-family: ui-monospace, "SFMono-Regular", "Cascadia Code", Consolas, monospace;
  font-size: 14px;
  color: var(--gray);
  letter-spacing: 0.03em;
}

.hero-title {
  margin: 0 0 24px;
  font-size: clamp(40px, 7vw, 72px);
  line-height: 1.02;
  font-weight: 900;
  letter-spacing: -0.03em;
}

.mark {
  background: var(--yellow);
  padding: 0 8px;
  border-radius: 6px;
  box-shadow: 0 0 0 3px var(--yellow);
}

.hero-subtitle {
  max-width: 560px;
  margin: 0 0 36px;
  font-size: 19px;
  color: #3c3c3c;
}

.hero-subtitle strong { color: var(--black); }

.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; margin-bottom: 56px; }

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-weight: 700;
  font-size: 16px;
  padding: 14px 24px;
  border-radius: 10px;
  border: 2px solid transparent;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.btn:hover { transform: translateY(-2px); }

.btn-primary {
  background: var(--black);
  color: var(--yellow);
}

.btn-primary:hover { box-shadow: 0 8px 24px rgba(0,0,0,0.18); }

.btn-ghost {
  border-color: var(--black);
  color: var(--black);
  background: transparent;
}

.btn-ghost:hover { background: var(--yellow-soft); }

.hero-stats {
  display: flex;
  gap: 48px;
  flex-wrap: wrap;
}

.stat { display: flex; flex-direction: column; }

.stat-num {
  font-size: 40px;
  font-weight: 900;
  letter-spacing: -0.02em;
  line-height: 1;
}

.stat-label {
  font-size: 14px;
  color: var(--gray);
  margin-top: 4px;
}

/* ---------- Секции ---------- */
.section { padding: 80px 0; }

.section-dark {
  background: var(--black);
  color: var(--white);
}

.section-yellow { background: var(--yellow); color: var(--black); }

.section-title {
  margin: 0 0 40px;
  font-size: clamp(28px, 4vw, 40px);
  font-weight: 900;
  letter-spacing: -0.02em;
}

.section-title-light { color: var(--white); }

.section-title-black { color: var(--black); }

.hash { color: var(--gray); font-weight: 800; }

.section-dark .hash,
.section-yellow .hash { opacity: 0.5; }

/* ---------- Обо мне ---------- */
.about-grid { display: grid; grid-template-columns: 1fr 1.2fr; gap: 48px; }

.about-lead {
  font-size: 22px;
  font-weight: 500;
  line-height: 1.45;
  margin: 0;
  color: #222;
}

.about-points { display: flex; flex-direction: column; gap: 26px; }

.point { display: flex; gap: 20px; }

.point-num {
  flex-shrink: 0;
  font-weight: 900;
  font-size: 15px;
  color: var(--gray);
  padding-top: 4px;
}

.point h3 { margin: 0 0 6px; font-size: 18px; font-weight: 800; letter-spacing: -0.01em; }
.point p { margin: 0; color: #4a4a4a; }

/* ---------- Страница проекта ---------- */
.p-hero {
  padding: 80px 0 70px;
  background:
    radial-gradient(circle at 80% 15%, rgba(255,255,100,0.18), transparent 45%),
    var(--white);
  border-bottom: 1px solid var(--line);
}

.p-title {
  margin: 0 0 20px;
  font-size: clamp(48px, 9vw, 96px);
  line-height: 1;
  font-weight: 900;
  letter-spacing: -0.03em;
}

.p-subtitle {
  max-width: 600px;
  margin: 0 0 36px;
  font-size: 19px;
  color: #3c3c3c;
}

.feature-list {
  display: flex;
  flex-direction: column;
  gap: 28px;
  max-width: 720px;
}

/* ---------- Проекты ---------- */
.projects {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 22px;
}

.project-card {
  background: #151515;
  border: 1px solid #2a2a2a;
  border-radius: var(--radius);
  transition: transform 0.18s ease, border-color 0.18s ease;
}

.project-card-inner {
  display: flex;
  flex-direction: column;
  height: 100%;
  padding: 24px;
  color: inherit;
}

.project-card:hover {
  transform: translateY(-4px);
  border-color: var(--yellow);
}

.project-head {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 14px;
}

.project-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: var(--yellow);
  color: var(--black);
  font-weight: 900;
  font-size: 16px;
  border-radius: 9px;
  flex-shrink: 0;
}

.project-tag {
  font-family: ui-monospace, monospace;
  font-size: 12px;
  color: var(--yellow);
  opacity: 0.85;
}

.project-title {
  margin: 0 0 8px;
  font-size: 20px;
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--white);
}

.project-desc {
  margin: 0 0 18px;
  color: #b0b0b0;
  font-size: 15px;
  flex-grow: 1;
}

.project-foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.project-link {
  font-weight: 700;
  font-size: 14px;
  color: var(--yellow);
}

.project-card-inner:hover .project-link { text-decoration: underline; }

.project-year { font-size: 13px; color: #6b6b6b; }

.project-badge {
  display: inline-block;
  font-size: 12px;
  font-weight: 700;
  color: var(--black);
  background: var(--yellow);
  padding: 3px 10px;
  border-radius: 999px;
}

.project-soon {
  font-size: 13px;
  color: #8a8a8a;
}

.project-card--dev { cursor: default; }

.project-card--dev:hover {
  transform: none;
  border-color: #2a2a2a;
}

/* ---------- Стек ---------- */
.stack {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(170px, 1fr));
  gap: 14px;
}

.stack-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 18px;
  border: 1px solid var(--line);
  border-radius: 10px;
  font-weight: 700;
  font-size: 15px;
  transition: border-color 0.15s ease, background 0.15s ease;
}

.stack-item:hover {
  border-color: var(--black);
  background: var(--yellow-soft);
}

.stack-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--black);
  flex-shrink: 0;
}

.stack-item:hover .stack-dot { background: var(--yellow); box-shadow: 0 0 0 3px var(--black); }

/* ---------- Контакт ---------- */
.contact-lead {
  max-width: 520px;
  font-size: 20px;
  font-weight: 500;
  margin: 0 0 36px;
}

.contact-links {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 16px;
}

.contact-card {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 22px;
  background: var(--black);
  color: var(--white);
  border-radius: 12px;
  transition: transform 0.15s ease;
}

.contact-card:hover { transform: translateY(-3px); }

.contact-icon {
  font-size: 22px;
  line-height: 1;
  margin-bottom: 8px;
}

.contact-name {
  font-size: 13px;
  color: #a3a3a3;
  font-weight: 500;
}

.contact-value {
  font-weight: 800;
  font-size: 16px;
  color: var(--yellow);
  letter-spacing: -0.01em;
}

/* ---------- Подвал ---------- */
.footer {
  background: var(--black);
  color: #8a8a8a;
  padding: 28px 0;
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}

.footer-logo {
  color: var(--yellow);
  font-weight: 900;
  font-size: 18px;
  letter-spacing: -0.5px;
}

.footer-note { font-size: 14px; }

/* ---------- Адаптив ---------- */
@media (max-width: 820px) {
  .nav { display: none; }

  .nav.mobile-open {
    display: flex;
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    background: var(--black);
    padding: 8px 24px 20px;
    border-bottom: 3px solid var(--yellow);
  }

  .nav.mobile-open .nav-link { padding: 14px 0; border-bottom: 1px solid #222; width: 100%; }
  .nav.mobile-open .nav-link-accent { border-bottom: none; margin-top: 8px; }

  .burger { display: flex; }

  .about-grid { grid-template-columns: 1fr; gap: 32px; }
  .hero-stats { gap: 32px; }
  .hero { padding: 60px 0 56px; }
  .p-hero { padding: 56px 0 48px; }
  .section { padding: 56px 0; }
}

@media (max-width: 520px) {
  .header-inner { height: 56px; }
  .nav.mobile-open { top: 56px; }

  .logo-text { font-size: 17px; }
  .logo-mark { width: 32px; height: 32px; font-size: 14px; }

  .hero-title { font-size: clamp(40px, 12vw, 54px); }
  .hero-subtitle { font-size: 17px; }
  .hero-eyebrow { font-size: 13px; }

  .hero-actions { flex-direction: column; }
  .hero-actions .btn { width: 100%; justify-content: center; }

  .hero-stats { gap: 24px; }
  .stat-num { font-size: 32px; }
  .stat-label { font-size: 13px; }

  .section-title { margin-bottom: 28px; }
  .about-lead { font-size: 19px; }

  .projects { grid-template-columns: 1fr; gap: 16px; }
  .project-card-inner { padding: 20px; }
  .project-title { font-size: 18px; }

  .stack { grid-template-columns: repeat(2, 1fr); gap: 10px; }
  .stack-item { padding: 14px 16px; font-size: 14px; }

  .p-title { font-size: clamp(44px, 16vw, 64px); }
  .p-subtitle { font-size: 17px; }
  .contact-lead { font-size: 18px; }
  .contact-links { grid-template-columns: 1fr; }
  .contact-card { padding: 18px; }

  .footer-inner { flex-direction: column; align-items: flex-start; gap: 8px; }
}