:root {
  --bg: #f6f7f9;
  --surface: #ffffff;
  --surface-soft: #f0f2f5;
  --text: #17202a;
  --muted: #697586;
  --line: #dfe3e8;
  --accent: #0f766e;
  --accent-soft: #dff5f1;
  --max-width: 1120px;
  --radius: 14px;
}

[data-theme="dark"] {
  --bg: #0d1117;
  --surface: #131a22;
  --surface-soft: #1a222d;
  --text: #edf2f7;
  --muted: #9aa7b5;
  --line: #293442;
  --accent: #5eead4;
  --accent-soft: #123f3a;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: Inter, system-ui, sans-serif;
  line-height: 1.7;
}

body[dir="rtl"] {
  font-family: Vazirmatn, Inter, system-ui, sans-serif;
}

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

.container {
  width: min(calc(100% - 40px), var(--max-width));
  margin-inline: auto;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 10;
  border-bottom: 1px solid var(--line);
  background: color-mix(in srgb, var(--bg) 92%, transparent);
  backdrop-filter: blur(14px);
}

.topbar-inner {
  min-height: 64px;
  display: flex;
  align-items: center;
  gap: 28px;
}

.brand {
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-inline-end: auto;
}

.nav {
  display: flex;
  gap: 22px;
  color: var(--muted);
  font-size: 0.9rem;
}

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

.actions {
  display: flex;
  gap: 8px;
}

.icon-button,
.language-button {
  border: 1px solid var(--line);
  background: var(--surface);
  color: var(--text);
  border-radius: 9px;
  min-width: 36px;
  height: 36px;
  cursor: pointer;
}

.language-button {
  font-size: 0.75rem;
  font-weight: 700;
}

.hero {
  padding: 92px 0 72px;
  display: flex;
  justify-content: space-between;
  align-items: end;
  gap: 40px;
  border-bottom: 1px solid var(--line);
}

.hero-copy {
  max-width: 760px;
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--accent);
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.12em;
}

.hero h1 {
  margin: 0;
  font-size: clamp(2.5rem, 7vw, 5.2rem);
  line-height: 1;
  letter-spacing: -0.055em;
}

.hero h2 {
  margin: 20px 0 12px;
  color: var(--muted);
  font-size: clamp(1.15rem, 2vw, 1.55rem);
  font-weight: 500;
}

.hero-summary {
  max-width: 650px;
  color: var(--muted);
  font-size: 1rem;
}

.hero-meta {
  display: flex;
  gap: 5px;
  min-width: 180px;
  color: var(--muted);
  font-size: 0.88rem;
}

.meta-item + .meta-item::before {
  content: "•";
  margin-inline-end: 0.5rem;
  opacity: 0.5;
}

.links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 24px;
}

.links a {
  padding: 7px 12px;
  border: 1px solid var(--line);
  border-radius: 999px;
  font-size: 0.82rem;
  transition: 0.2s ease;
}

.links a:hover {
  border-color: var(--accent);
  color: var(--accent);
  transform: translateY(-1px);
}

.page-grid {
  display: grid;
  grid-template-columns: 220px minmax(0, 1fr);
  gap: 70px;
  padding-top: 62px;
}

.sidebar {
  border-inline-end: 1px solid var(--line);
  padding-inline-end: 28px;
}

.side-section + .side-section {
  margin-top: 44px;
}

.side-section h3 {
  margin: 0 0 16px;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--muted);
}

.skill-list {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
}

.skill {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 7px;
  padding: 4px 8px;
  font-size: 0.76rem;
}

.plain-list {
  display: grid;
  gap: 7px;
  color: var(--muted);
  font-size: 0.82rem;
}

.section {
  padding-bottom: 72px;
}

.section-heading {
  display: flex;
  align-items: baseline;
  gap: 14px;
  margin-bottom: 30px;
}

.section-heading h2 {
  margin: 0;
  font-size: 1.45rem;
  letter-spacing: -0.025em;
}

.section-number {
  color: var(--accent);
  font-size: 0.72rem;
  font-weight: 700;
}

.section-text {
  margin: 0;
  max-width: 760px;
  color: var(--muted);
}

.timeline {
  display: grid;
  gap: 32px;
}

.timeline-item {
  display: grid;
  grid-template-columns: 150px minmax(0, 1fr);
  gap: 26px;
}

.timeline-date {
  color: var(--muted);
  font-size: 0.78rem;
  padding-top: 3px;
}

.timeline-content {
  position: relative;
  padding-inline-start: 22px;
  border-inline-start: 1px solid var(--line);
}

.timeline-content::before {
  content: "";
  position: absolute;
  inset-inline-start: -4px;
  top: 7px;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent);
}

.timeline-title {
  margin: 0;
  font-size: 1.05rem;
  font-weight: 700;
}

.timeline-company {
  margin: 2px 0 12px;
  color: var(--accent);
  font-size: 0.85rem;
}

.timeline-description {
  margin: 0;
  color: var(--muted);
  font-size: 0.88rem;
}

.timeline-description ul {
  margin: 8px 0 0;
  padding-inline-start: 18px;
}

.project-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.project {
  padding: 22px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.project h3 {
  margin: 0 0 7px;
  font-size: 1rem;
}

.project p {
  margin: 0 0 14px;
  color: var(--muted);
  font-size: 0.84rem;
}

.tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.tag {
  color: var(--accent);
  background: var(--accent-soft);
  border-radius: 999px;
  padding: 3px 8px;
  font-size: 0.7rem;
}

.footer {
  padding: 28px 0 42px;
  border-top: 1px solid var(--line);
  display: flex;
  justify-content: space-between;
  color: var(--muted);
  font-size: 0.78rem;
}

[dir="rtl"] .nav,
[dir="rtl"] .links {
  letter-spacing: 0;
}

@media (max-width: 800px) {
  .nav {
    display: none;
  }

  .hero {
    padding: 64px 0 52px;
    display: block;
  }

  .hero-meta {
    margin-top: 26px;
  }

  .page-grid {
    display: block;
    padding-top: 42px;
  }

  .sidebar {
    border-inline-end: 0;
    border-bottom: 1px solid var(--line);
    padding: 0 0 32px;
    margin-bottom: 50px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
  }

  .side-section + .side-section {
    margin-top: 0;
  }

  .timeline-item {
    grid-template-columns: 1fr;
    gap: 5px;
  }

  .timeline-date {
    padding: 0;
  }

  .project-grid {
    grid-template-columns: 1fr;
  }
}

@media print {
  :root {
    --bg: #fff;
    --surface: #fff;
    --text: #111;
    --muted: #444;
    --line: #ccc;
    --accent: #111;
    --accent-soft: #eee;
  }

  .topbar {
    display: none;
  }

  .hero {
    padding-top: 20px;
  }

  .page-grid {
    gap: 35px;
    padding-top: 30px;
  }

  .section {
    padding-bottom: 35px;
  }

  .project,
  .skill {
    break-inside: avoid;
  }
}