:root {
  color-scheme: light;
  --bg: #f5f7fb;
  --bg-elev: rgba(255, 255, 255, 0.84);
  --card: rgba(255, 255, 255, 0.92);
  --card-border: rgba(15, 23, 42, 0.08);
  --text: #0f172a;
  --muted: #475569;
  --accent: #2563eb;
  --accent-strong: #1d4ed8;
  --accent-soft: rgba(37, 99, 235, 0.08);
  --shadow: 0 20px 50px rgba(15, 23, 42, 0.08);
  --radius-xl: 24px;
  --radius-lg: 18px;
  --radius-md: 14px;
  --max-width: 1180px;
  --font: "Vazirmatn", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font);
  background:
    radial-gradient(circle at top right, rgba(37, 99, 235, 0.08), transparent 26%),
    radial-gradient(circle at bottom left, rgba(14, 165, 233, 0.06), transparent 24%),
    linear-gradient(180deg, #f9fbff 0%, #f5f7fb 55%, #eef2f7 100%);
  color: var(--text);
  min-height: 100vh;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image: linear-gradient(rgba(15, 23, 42, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(15, 23, 42, 0.03) 1px, transparent 1px);
  background-size: 36px 36px;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.28), transparent 90%);
  opacity: 0.55;
}

body[data-lang="en"] {
  direction: ltr;
}

body[data-lang="fa"] {
  direction: rtl;
}

body[data-lang="en"] .site-nav,
body[data-lang="en"] .hero-actions,
body[data-lang="en"] .contact-actions,
body[data-lang="en"] .header-actions,
body[data-lang="en"] .future-grid,
body[data-lang="en"] .link-grid,
body[data-lang="en"] .content-grid,
body[data-lang="en"] .hero,
body[data-lang="en"] .feature-list,
body[data-lang="en"] .hero-panel,
body[data-lang="en"] .site-header,
body[data-lang="en"] .brand,
body[data-lang="en"] .links-header {
  direction: ltr;
}

.page-shell {
  width: min(calc(100% - 32px), var(--max-width));
  margin: 0 auto;
  padding: 24px 0 36px;
  position: relative;
  z-index: 1;
}

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  position: sticky;
  top: 16px;
  margin-bottom: 18px;
  padding: 14px 18px;
  background: rgba(255, 255, 255, 0.88);
  backdrop-filter: blur(16px);
  border: 1px solid rgba(15, 23, 42, 0.08);
  border-radius: 22px;
  box-shadow: var(--shadow);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: inherit;
  text-decoration: none;
}

.brand-mark {
  width: 70px;
  height: 70px;
  flex: 0 0 70px;
  display: block;
  object-fit: cover;
  border-radius: 18px;
  box-shadow: 0 10px 24px rgba(37, 99, 235, 0.22);
}

.brand-copy {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.brand-copy strong {
  font-size: 1.35rem;
  line-height: 1.1;
  font-weight: 800;
}

.brand-copy small {
  color: var(--muted);
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
}

.site-nav a {
  color: var(--muted);
  text-decoration: none;
  font-weight: 500;
  transition: color 0.2s ease;
}

.site-nav a:hover,
.site-nav a:focus-visible {
  color: var(--text);
}

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

.lang-toggle,
.button {
  border: 0;
  border-radius: 999px;
  font: inherit;
  font-weight: 700;
  cursor: pointer;
  text-decoration: none;
  transition:
    transform 0.2s ease,
    box-shadow 0.2s ease,
    background 0.2s ease,
    border-color 0.2s ease;
}

.lang-toggle {
  min-width: 54px;
  height: 42px;
  padding: 0 16px;
  background: rgba(37, 99, 235, 0.08);
  color: var(--text);
  border: 1px solid rgba(37, 99, 235, 0.18);
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 18px;
}

.button:hover,
.button:focus-visible,
.lang-toggle:hover,
.lang-toggle:focus-visible,
.link-chip:hover,
.link-chip:focus-visible {
  transform: translateY(-1px);
}

.button.primary {
  background: linear-gradient(135deg, var(--accent-strong), #2563eb);
  color: white;
  box-shadow: 0 12px 24px rgba(37, 99, 235, 0.18);
}

.button.secondary {
  background: white;
  color: var(--text);
  border: 1px solid rgba(15, 23, 42, 0.12);
}

main {
  display: grid;
  gap: 20px;
}

.card {
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow);
  padding: 28px;
}

.hero {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 24px;
  padding: 32px;
  overflow: hidden;
  position: relative;
}

.hero::after {
  content: "";
  position: absolute;
  inset: auto -10% -20% auto;
  width: 340px;
  height: 340px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(37, 99, 235, 0.12), transparent 70%);
  filter: blur(8px);
}

.hero-copy,
.hero-panel {
  position: relative;
  z-index: 1;
}

.eyebrow,
.section-label {
  margin: 0 0 10px;
  color: #2563eb;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  font-size: 0.82rem;
}

.hero h1,
.card h2 {
  margin: 0;
  line-height: 1.2;
}

.hero h1 {
  font-size: clamp(2.4rem, 5vw, 4.8rem);
  margin-bottom: 16px;
}

.hero-lead {
  color: var(--muted);
  font-size: 1.08rem;
  line-height: 1.9;
  max-width: 62ch;
}

.hero-actions,
.contact-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: 24px 0;
}

.hero-points,
.check-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 12px;
}

.hero-points li,
.check-list li {
  position: relative;
  padding-inline-start: 28px;
  color: var(--muted);
  line-height: 1.8;
}

.hero-points li::before,
.check-list li::before {
  content: "";
  position: absolute;
  inset-inline-start: 0;
  top: 0.7em;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), #60a5fa);
  box-shadow: 0 0 0 5px rgba(37, 99, 235, 0.08);
}

.hero-panel {
  display: grid;
  gap: 18px;
  align-content: start;
}

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

.stat-card {
  padding: 18px;
  border-radius: var(--radius-lg);
  background: #f8fafc;
  border: 1px solid rgba(15, 23, 42, 0.08);
}

.stat-value {
  display: block;
  font-size: 1.35rem;
  font-weight: 800;
  margin-bottom: 6px;
}

.stat-label {
  color: var(--muted);
  font-size: 0.95rem;
}

.feature-list {
  padding: 22px;
  border-radius: var(--radius-lg);
  background: #f8fafc;
  border: 1px solid rgba(15, 23, 42, 0.08);
}

.feature-list h2 {
  font-size: 1.2rem;
  margin-bottom: 14px;
}

.feature-list ul {
  margin: 0;
  padding: 0 18px 0 0;
  color: var(--muted);
  display: grid;
  gap: 10px;
}

.content-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px;
}

.content-grid .card,
.links-card,
.future-card,
.contact-card {
  padding: 26px;
}

.content-grid h2,
.links-card h2,
.future-card h2,
.contact-card h2 {
  margin-bottom: 12px;
  font-size: clamp(1.5rem, 2.8vw, 2.15rem);
}

.content-grid p,
.links-card p,
.future-card p,
.contact-card p,
.item span,
.item strong {
  line-height: 1.9;
}

.content-grid p,
.links-card p,
.future-card p,
.contact-card p,
.item span {
  color: var(--muted);
}

.links-header {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 18px;
}

.link-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.link-chip {
  display: inline-flex;
  align-items: center;
  min-height: 42px;
  padding: 0 16px;
  border-radius: 999px;
  background: var(--accent-soft);
  border: 1px solid rgba(37, 99, 235, 0.16);
  color: var(--text);
  text-decoration: none;
  font-weight: 700;
}

.item-list {
  display: grid;
  gap: 14px;
}

.item {
  padding: 16px 18px;
  border-radius: var(--radius-md);
  background: #f8fafc;
  border: 1px solid rgba(15, 23, 42, 0.08);
  display: grid;
  gap: 6px;
}

.future-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.future-grid > div {
  padding: 18px;
  border-radius: var(--radius-md);
  background: #f8fafc;
  border: 1px solid rgba(15, 23, 42, 0.08);
}

.future-grid h3 {
  margin: 0 0 8px;
  font-size: 1.05rem;
}

.contact-card {
  text-align: start;
}

.site-footer {
  padding: 20px 8px 0;
  text-align: center;
  color: var(--muted);
  font-size: 0.95rem;
}

@media (max-width: 1024px) {
  .hero,
  .content-grid,
  .future-grid {
    grid-template-columns: 1fr;
  }

  .site-header {
    border-radius: 24px;
    padding: 16px;
    align-items: flex-start;
  }

  .site-nav {
    gap: 14px;
  }
}

@media (max-width: 680px) {
  .page-shell {
    width: min(calc(100% - 20px), var(--max-width));
    padding-top: 12px;
  }

  .hero,
  .content-grid .card,
  .links-card,
  .future-card,
  .contact-card {
    padding: 20px;
  }

  .hero h1 {
    font-size: clamp(2rem, 12vw, 3.2rem);
  }

  .site-header {
    position: static;
    gap: 14px;
  }

  .site-nav {
    width: 100%;
    gap: 12px;
  }

  .site-nav a {
    font-size: 0.95rem;
  }

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

  .links-header {
    align-items: flex-start;
  }
}

.spotlight-card {
  padding: 22px 26px;
}

.spotlight-grid {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 18px;
  align-items: center;
}

.spotlight-grid h2 {
  margin: 0;
  font-size: clamp(1.5rem, 2.4vw, 2.1rem);
}

.spotlight-stats {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
}

.spotlight-stats article {
  padding: 16px 14px;
  border-radius: var(--radius-md);
  background: #f8fafc;
  border: 1px solid rgba(15, 23, 42, 0.08);
  text-align: center;
}

.spotlight-stats strong {
  display: block;
  font-size: 1.4rem;
  margin-bottom: 6px;
}

.spotlight-stats span {
  color: var(--muted);
  font-size: 0.92rem;
  line-height: 1.6;
}

.profile-card {
  padding: 22px;
  border-radius: var(--radius-lg);
  background: #f8fafc;
  border: 1px solid rgba(15, 23, 42, 0.08);
  display: grid;
  gap: 18px;
}

.profile-top {
  display: flex;
  align-items: center;
  gap: 16px;
}

.profile-avatar {
  width: 74px;
  height: 74px;
  flex: 0 0 74px;
  border-radius: 24px;
  display: grid;
  place-items: center;
  background: linear-gradient(135deg, rgba(37, 99, 235, 0.95), rgba(59, 130, 246, 0.8));
  color: white;
  font-weight: 800;
  letter-spacing: 0.06em;
  box-shadow: 0 16px 32px rgba(37, 99, 235, 0.18);
}

.profile-avatar img {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: cover;
  border-radius: 18px; /* match container rounding */
}

.avatar-fallback {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  font-weight: 800;
  color: white;
}

.profile-kicker {
  margin: 0 0 4px;
  color: #2563eb;
  font-size: 0.82rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-weight: 700;
}

.profile-card h2 {
  margin: 0 0 6px;
  font-size: 1.15rem;
  line-height: 1.45;
}

.profile-subtitle {
  margin: 0;
  color: var(--muted);
}

.metrics-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin: 0;
}

.metrics-grid div {
  padding: 14px 16px;
  border-radius: var(--radius-md);
  background: white;
  border: 1px solid rgba(15, 23, 42, 0.08);
}

.metrics-grid dt {
  color: var(--muted);
  font-size: 0.86rem;
  margin-bottom: 6px;
}

.metrics-grid dd {
  margin: 0;
  font-size: 1.05rem;
  font-weight: 700;
}

.profile-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.profile-links a,
.contact-chip {
  display: inline-flex;
  align-items: center;
  min-height: 40px;
  padding: 0 14px;
  border-radius: 999px;
  color: var(--text);
  text-decoration: none;
  border: 1px solid rgba(37, 99, 235, 0.16);
  background: rgba(37, 99, 235, 0.08);
  font-weight: 700;
}

.profile-links a:hover,
.profile-links a:focus-visible,
.contact-chip:hover,
.contact-chip:focus-visible {
  transform: translateY(-1px);
}

.spotlight-card,
.links-card,
.future-card,
.contact-card {
  overflow: hidden;
}

.tag-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 18px;
}

.tag-row span {
  display: inline-flex;
  align-items: center;
  min-height: 38px;
  padding: 0 14px;
  border-radius: 999px;
  background: white;
  border: 1px solid rgba(15, 23, 42, 0.08);
  color: var(--text);
  font-size: 0.92rem;
}

.timeline {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.timeline li {
  display: grid;
  grid-template-columns: 118px 1fr;
  gap: 14px;
  padding: 16px 18px;
  border-radius: var(--radius-md);
  background: white;
  border: 1px solid rgba(15, 23, 42, 0.08);
}

.timeline-year {
  color: #2563eb;
  font-weight: 800;
  font-size: 0.92rem;
}

.timeline strong {
  display: block;
  margin-bottom: 6px;
}

.timeline p {
  margin: 0;
  color: var(--muted);
}

.section-head {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 18px;
}

.section-head h2 {
  margin-bottom: 8px !important;
}

.section-head p {
  max-width: 62ch;
  margin: 0;
}

.publication-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px; /* increased spacing between publication cards */
}

.publication-card {
  padding: 28px; /* more breathing room */
  border-radius: var(--radius-md);
  background: white;
  border: 1px solid rgba(15, 23, 42, 0.08);
  display: grid;
  gap: 12px;
}

.publication-card h3 {
  margin: 0 0 6px 0;
  line-height: 1.45;
  font-size: 1.03rem;
}

.publication-card p {
  margin: 0;
  color: var(--muted);
  line-height: 1.8;
}

.pub-meta {
  color: #2563eb;
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.featured-item {
  border-color: rgba(37, 99, 235, 0.18);
  background: linear-gradient(180deg, rgba(37, 99, 235, 0.06), white);
}

.contact-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 18px;
}

.contact-card .contact-actions {
  margin-bottom: 0;
}

.contact-card .contact-actions .button {
  min-width: 160px;
}

@media (max-width: 1024px) {
  .spotlight-grid,
  .publication-grid {
    grid-template-columns: 1fr;
  }

  .spotlight-stats {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .timeline li {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 680px) {
  .spotlight-card,
  .links-card,
  .future-card,
  .contact-card,
  .content-grid .card,
  .hero {
    padding: 20px;
  }

  .spotlight-stats,
  .metrics-grid,
  .publication-grid {
    grid-template-columns: 1fr;
  }

  .profile-top {
    align-items: flex-start;
  }

  .profile-avatar {
    width: 62px;
    height: 62px;
    flex-basis: 62px;
    border-radius: 20px;
  }

  .contact-card .contact-actions .button {
    width: 100%;
  }
}