/* Bezpalov — design system */

@font-face {
  font-family: "Geologica";
  font-style: normal;
  font-weight: 600;
  font-display: swap;
  src: url("../fonts/geologica-600.woff2") format("woff2");
}

@font-face {
  font-family: "Onest";
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url("../fonts/onest-400.woff2") format("woff2");
}

@font-face {
  font-family: "Onest";
  font-style: normal;
  font-weight: 500;
  font-display: swap;
  src: url("../fonts/onest-500.woff2") format("woff2");
}

@font-face {
  font-family: "JetBrains Mono";
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url("../fonts/jetbrains-mono-400.woff2") format("woff2");
}

:root {
  --bg: #0B0F14;
  --surface: #121821;
  --line: #2A3442;
  --text: #E8EDF2;
  --muted: #93A1B0;
  --accent: #FFB454;
  --pulse: #FFD9A0;

  --font-display: "Geologica", system-ui, sans-serif;
  --font-body: "Onest", system-ui, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, monospace;

  --container: 1200px;
  --section-space: clamp(7.5rem, 12vw, 10rem);
  --header-h: 4rem;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 1.0625rem;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

img,
canvas {
  display: block;
  max-width: 100%;
}

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

a:hover {
  color: var(--accent);
}

:focus {
  outline: none;
}

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

.container {
  width: min(100% - 2.5rem, var(--container));
  margin-inline: auto;
}

.skip-link {
  position: absolute;
  top: 0;
  left: 1.25rem;
  z-index: 200;
  padding: 0.625rem 1rem;
  background: var(--accent);
  color: var(--bg);
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  letter-spacing: 0.04em;
  transform: translateY(-120%);
  transition: transform 0.2s ease;
}

.skip-link:focus {
  transform: translateY(0.75rem);
}

.skip-link:focus-visible {
  outline: 2px solid var(--pulse);
  outline-offset: 2px;
}

/* Typography */

h1,
h2,
h3 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.05;
}

h1 {
  font-size: clamp(2.6rem, 8vw, 6.5rem);
  letter-spacing: -0.02em;
}

h2 {
  font-size: clamp(1.8rem, 4vw, 3rem);
  letter-spacing: -0.02em;
}

h3 {
  font-size: clamp(1.25rem, 2.5vw, 1.75rem);
  letter-spacing: -0.02em;
}

p {
  margin: 0;
}

.eyebrow {
  margin: 0 0 1.5rem;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  font-weight: 400;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
}

/* Header */

.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 100;
  height: var(--header-h);
  border-bottom: 1px solid transparent;
  transition: background-color 0.3s ease, border-color 0.3s ease, backdrop-filter 0.3s ease;
}

.site-header.is-scrolled {
  background: rgba(18, 24, 33, 0.88);
  border-bottom-color: var(--line);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.site-header__logo {
  font-family: var(--font-mono);
  font-size: 0.875rem;
  letter-spacing: 0.06em;
}

.site-header__nav {
  display: flex;
  align-items: center;
  gap: 1.75rem;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  letter-spacing: 0.04em;
}

.lang-switch {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.lang-switch [aria-current="page"] {
  color: var(--accent);
}

.lang-switch__sep {
  color: var(--line);
}

/* Hero */

.hero {
  position: relative;
  display: flex;
  align-items: center;
  min-height: 100svh;
  padding-block: calc(var(--header-h) + 3rem) 4rem;
  overflow: hidden;
}

#net {
  position: absolute;
  inset: 0;
  z-index: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
}

.hero__content {
  position: relative;
  z-index: 1;
}

.hero__thesis {
  margin: 1.75rem 0 0;
  max-width: 36ch;
  font-size: 1.125rem;
  line-height: 1.65;
  color: var(--muted);
}

html.js-choreo .hero__content > *,
html.js-choreo .site-header,
html.js-choreo #net {
  opacity: 0;
}

/* Sections */

.section {
  padding-block: var(--section-space);
  border-top: 1px solid var(--line);
}

/* Work */

.work-grid {
  display: grid;
  gap: 2.5rem;
}

@media (min-width: 768px) {
  .work-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
  }
}

.work-item h2,
.work-item__title {
  margin-bottom: 0.75rem;
  font-size: clamp(1.25rem, 2.5vw, 1.75rem);
  letter-spacing: -0.02em;
}

.work-item p {
  color: var(--muted);
}

/* Experience */

.experience-layout {
  display: grid;
  gap: 3rem;
  align-items: start;
}

@media (min-width: 768px) {
  .experience-layout {
    grid-template-columns: 1fr auto;
    gap: 4rem;
  }
}

.route-table {
  display: flex;
  flex-direction: column;
  gap: 0.625rem;
  font-family: var(--font-mono);
  font-size: 0.875rem;
  letter-spacing: 0.02em;
}

.route-row {
  display: grid;
  grid-template-columns: 11.5rem 1.25rem 1fr;
  gap: 0.75rem;
  align-items: baseline;
}

.route-label {
  color: var(--text);
  white-space: nowrap;
}

.route-arrow {
  color: var(--muted);
  text-align: center;
}

.route-value {
  color: var(--muted);
}

@media (max-width: 540px) {
  .route-row {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
    padding-bottom: 0.75rem;
    border-bottom: 1px solid var(--line);
  }

  .route-row:last-child {
    border-bottom: none;
    padding-bottom: 0;
  }

  .route-arrow {
    display: none;
  }

  .route-value {
    padding-left: 0.75rem;
    overflow-wrap: break-word;
  }

  .route-label {
    white-space: normal;
  }
}

html[lang="ru"] h1,
html[lang="ru"] .work-item__title,
html[lang="ru"] .principles-list li,
html[lang="ru"] .route-value {
  overflow-wrap: break-word;
  hyphens: auto;
}

.experience-stat__number {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(4rem, 12vw, 8rem);
  font-weight: 600;
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--accent);
}

.experience-stat__caption {
  margin: 1rem 0 0;
  max-width: 18ch;
  font-size: 0.9375rem;
  line-height: 1.5;
  color: var(--muted);
}

/* Principles */

.principles-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 1.75rem;
}

.principles-list li {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 3.5vw, 2.25rem);
  font-weight: 600;
  line-height: 1.25;
  letter-spacing: -0.02em;
}

/* Writing */

.writing-text {
  max-width: 42ch;
  margin-bottom: 2rem;
  color: var(--muted);
}

.btn-link {
  display: inline-block;
  padding: 0.75rem 1.25rem;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  letter-spacing: 0.04em;
  border: 1px solid var(--line);
  transition: border-color 0.2s ease, color 0.2s ease;
}

.btn-link:hover {
  border-color: var(--accent);
  color: var(--accent);
}

/* Contact */

.contact-lead {
  margin-bottom: 1.5rem;
  color: var(--muted);
}

.contact-email-wrap {
  margin-bottom: 1.5rem;
}

.contact-email {
  font-family: var(--font-mono);
  font-size: clamp(1.25rem, 4vw, 2rem);
  letter-spacing: 0.02em;
  transition: color 0.2s ease;
}

.contact-email:hover {
  color: var(--accent);
}

.contact-links {
  display: flex;
  gap: 1.5rem;
}

.quiet-link {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  letter-spacing: 0.04em;
  color: var(--muted);
  transition: color 0.2s ease;
}

.quiet-link:hover {
  color: var(--accent);
}

/* Footer */

.site-footer {
  padding-block: 3rem var(--section-space);
  border-top: 1px solid var(--line);
}

.footer-copy {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  letter-spacing: 0.04em;
  color: var(--muted);
}

.footer-note {
  margin-top: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  letter-spacing: 0.04em;
  color: var(--muted);
}

/* Reduced motion */

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}