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

:root {
  --bg: #000000;
  --border: #ffffff;
  --text: #ffffff;
  --muted: rgba(255, 255, 255, 0.5);
  --font-sans: 'DM Sans', 'Helvetica Neue', Arial, sans-serif;
  --font-mono: 'IBM Plex Mono', 'Courier New', monospace;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
}

/* ── Header ── */

.about-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px clamp(24px, 5vw, 64px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
  background: var(--bg);
}

.about-back {
  display: flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
  text-decoration: none;
  transition: color 0.1s;
}

.about-back:hover {
  color: var(--text);
}

.about-header__title {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
}

.about-header__social {
  display: flex;
  align-items: center;
  gap: 0;
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.about-header__social a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 28px;
  color: var(--muted);
  text-decoration: none;
  transition: color 0.1s;
}

.about-header__social a + a {
  border-left: 1px solid rgba(255, 255, 255, 0.2);
}

.about-header__social a:hover {
  color: var(--text);
}

.about-header__social svg {
  width: 12px;
  height: 12px;
}

/* ── Main ── */

.about-main {
  max-width: 720px;
  margin: 0 auto;
  padding: clamp(96px, 12vw, 140px) clamp(24px, 5vw, 48px) clamp(64px, 10vw, 120px);
}

/* ── Bio ── */

.about-bio {
  margin-bottom: clamp(48px, 8vw, 96px);
  padding-bottom: clamp(48px, 8vw, 96px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
}

.about-bio__text {
  font-size: clamp(16px, 2.2vw, 20px);
  line-height: 1.65;
  font-weight: 400;
  color: var(--text);
  letter-spacing: -0.01em;
}

/* ── CV ── */

.about-cv__heading {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: clamp(32px, 5vw, 48px);
}

.cv-list {
  display: flex;
  flex-direction: column;
}

.cv-entry {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: 24px;
  padding: clamp(20px, 3vw, 32px) 0;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
}

.cv-entry:last-child {
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
}

.cv-entry__meta {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.cv-entry__date {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.08em;
  color: var(--muted);
  margin-bottom: 4px;
}

.cv-entry__role {
  font-size: clamp(13px, 1.5vw, 15px);
  font-weight: 500;
  color: var(--text);
  letter-spacing: -0.01em;
}

.cv-entry__company {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.06em;
  color: var(--muted);
}

.cv-entry__location {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.06em;
  color: rgba(255, 255, 255, 0.3);
  margin-top: 2px;
}

.cv-entry__desc {
  font-size: clamp(12px, 1.4vw, 13px);
  line-height: 1.7;
  color: var(--muted);
  padding-top: 2px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.cv-entry__desc p {
  color: var(--muted);
}

.cv-entry__desc ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.cv-entry__desc ul li {
  padding-left: 12px;
  position: relative;
  color: var(--muted);
}

.cv-entry__desc ul li::before {
  content: '—';
  position: absolute;
  left: 0;
  color: rgba(255, 255, 255, 0.2);
}

.cv-entry__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  margin-top: 4px;
}

.cv-entry__tags span {
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.4);
  border: 1px solid rgba(255, 255, 255, 0.15);
  padding: 3px 7px;
}

/* ── Mobile ── */

@media (max-width: 640px) {
  .about-header__title {
    display: none;
  }

  .cv-entry {
    grid-template-columns: 1fr;
    gap: 12px;
  }
}