/*
  Academic homepage styles for Dan Vilenchik @ BGU.
  Domain: static marketing / lab site for GitHub Pages.
  Update when branding, navigation, or layout requirements change.
*/

:root {
  --bg: #eef1f6;
  --surface: #ffffff;
  --ink: #0f172a;
  --muted: #475569;
  --line: #cbd5e1;
  --brand: #0c4a6e;
  --brand-light: #0369a1;
  --accent: #0d9488;
  --accent-soft: rgba(13, 148, 136, 0.12);
  --shadow: 0 1px 3px rgba(15, 23, 42, 0.08);
  --radius: 10px;
  --font-sans: "DM Sans", system-ui, sans-serif;
  --font-serif: "Source Serif 4", Georgia, serif;
  --max: 920px;
}

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 1.05rem;
  line-height: 1.65;
  color: var(--ink);
  background: var(--bg);
  background-image:
    linear-gradient(180deg, rgba(12, 74, 110, 0.04) 0%, transparent 320px),
    radial-gradient(ellipse 80% 50% at 50% -20%, rgba(13, 148, 136, 0.15), transparent);
  min-height: 100vh;
}

/* Avoid horizontal scroll from long words/URLs on narrow viewports */
main,
.card {
  overflow-wrap: break-word;
  word-wrap: break-word;
}

a {
  color: var(--brand-light);
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

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

.site-header {
  background: linear-gradient(135deg, #0c4a6e 0%, #0e7490 55%, #0f766e 100%);
  color: #f8fafc;
  padding: 0;
  box-shadow: 0 4px 24px rgba(12, 74, 110, 0.35);
}

.site-header__inner {
  max-width: var(--max);
  margin: 0 auto;
  padding: 1.25rem max(1.5rem, env(safe-area-inset-left, 0px)) 0
    max(1.5rem, env(safe-area-inset-right, 0px));
}

.site-title {
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: 1.75rem;
  letter-spacing: -0.02em;
  margin: 0 0 0.25rem;
}

.site-sub {
  font-size: 0.95rem;
  opacity: 0.92;
  margin: 0 0 1rem;
  font-weight: 500;
}

.nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 0.75rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid rgba(248, 250, 252, 0.2);
}

.nav a {
  color: #e0f2fe;
  text-decoration: none;
  font-size: 0.92rem;
  font-weight: 500;
  padding: 0.35rem 0.65rem;
  border-radius: 6px;
  transition: background 0.15s ease, color 0.15s ease;
}

.nav a:hover {
  background: rgba(255, 255, 255, 0.15);
  color: #fff;
}

.nav a[aria-current="page"] {
  background: rgba(255, 255, 255, 0.22);
  color: #fff;
}

main {
  max-width: var(--max);
  margin: 0 auto;
  padding: 2rem max(1.5rem, env(safe-area-inset-left, 0px)) 3.5rem
    max(1.5rem, env(safe-area-inset-right, 0px));
}

.card {
  background: var(--surface);
  border-radius: var(--radius);
  padding: 1.75rem 2rem;
  box-shadow: var(--shadow);
  border: 1px solid rgba(203, 213, 225, 0.6);
  margin-bottom: 1.5rem;
}

.card h1,
.card h2 {
  font-family: var(--font-serif);
  margin-top: 0;
}

.card h1 {
  font-size: 1.85rem;
  letter-spacing: -0.02em;
  color: var(--brand);
}

.card h2 {
  font-size: 1.35rem;
  color: #134e4a;
  margin-bottom: 0.75rem;
}

.lead {
  font-size: 1.1rem;
  color: var(--muted);
}

.contact-grid {
  display: grid;
  gap: 0.5rem 1.5rem;
  margin: 1.25rem 0;
  font-size: 0.98rem;
}

@media (min-width: 520px) {
  .contact-grid {
    grid-template-columns: auto 1fr;
  }
}

.contact-grid dt {
  font-weight: 600;
  color: var(--brand);
  align-self: center;
}

.contact-grid dd {
  margin: 0;
  align-self: center;
}

/* Pull Profiles row toward Phone on wide layout only (two columns). Narrow: extra space via rules below. */
@media (min-width: 641px) {
  .contact-grid__profiles-label,
  .contact-grid__profiles-dd {
    margin-top: -1.3rem;
  }
}

.contact-profile-icons {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1.5rem;
}

.contact-profile-icons__link {
  display: inline-flex;
  align-items: center;
  line-height: 0;
}

.contact-profile-icons__link:hover {
  opacity: 0.88;
}

/* Larger wordmarks; distinct heights keep both readable side by side */
.contact-profile-icons__img {
  display: block;
  width: auto;
}

.contact-profile-icons__img--orcid {
  height: 1.361rem;
}

.contact-profile-icons__img--linkedin {
  height: 4.4rem;
}

.btn-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.25rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.55rem 1rem;
  border-radius: 8px;
  font-weight: 600;
  font-size: 0.92rem;
  text-decoration: none;
  border: 1px solid transparent;
  transition: transform 0.12s ease, box-shadow 0.12s ease;
}

.btn:hover {
  transform: translateY(-1px);
}

.btn--primary {
  background: var(--brand);
  color: #fff !important;
  box-shadow: 0 2px 8px rgba(12, 74, 110, 0.35);
}

.btn--primary:hover {
  background: #075985;
  color: #fff !important;
}

.btn--ghost {
  background: var(--surface);
  color: var(--brand) !important;
  border-color: var(--line);
}

.btn--ghost:hover {
  background: var(--accent-soft);
  border-color: var(--accent);
}

.project {
  padding: 1.25rem 0;
  border-bottom: 1px solid var(--line);
}

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

.project h3 {
  font-family: var(--font-serif);
  font-size: 1.15rem;
  margin: 0 0 0.5rem;
  color: var(--brand);
}

.project__tagline {
  margin: 0 0 0.75rem;
  font-size: 0.95rem;
  font-style: italic;
  color: var(--muted);
  line-height: 1.5;
}

.project__overview-title {
  display: block;
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--accent);
  margin: 0.75rem 0 0.35rem;
}

.project__pubs-title {
  display: block;
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--brand);
  margin: 0.85rem 0 0.35rem;
}

.project ul {
  margin: 0.35rem 0 0;
  padding-left: 1.2rem;
  font-size: 0.95rem;
  color: var(--ink);
}

.project ul li {
  margin-bottom: 0.4rem;
}

.pub-year {
  font-family: var(--font-serif);
  font-size: 1.35rem;
  color: #134e4a;
  margin: 1.75rem 0 0.75rem;
  padding-bottom: 0.35rem;
  border-bottom: 2px solid var(--accent-soft);
}

.pub-year:first-of-type {
  margin-top: 1.25rem;
}

.lab-member {
  display: grid;
  gap: 0.35rem;
  padding: 1rem 0;
  border-bottom: 1px solid var(--line);
}

.lab-member:last-child {
  border-bottom: none;
}

.lab-member__name {
  font-weight: 700;
  font-size: 1.05rem;
  color: var(--ink);
}

.lab-member__meta {
  font-size: 0.88rem;
  color: var(--accent);
  font-weight: 600;
}

.lab-member__topic {
  margin: 0;
  color: var(--muted);
  font-size: 0.98rem;
}

.pub-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.pub-list li {
  padding: 0.65rem 0;
  border-bottom: 1px solid var(--line);
  font-size: 0.95rem;
}

.pub-list li:last-child {
  border-bottom: none;
}

.course-list {
  margin: 0;
  padding-left: 1.25rem;
}

.course-list li {
  margin-bottom: 0.5rem;
}

.site-footer {
  max-width: var(--max);
  margin: 0 auto;
  padding: 1.5rem max(1.5rem, env(safe-area-inset-left, 0px))
    max(1.5rem, env(safe-area-inset-bottom, 0px)) max(1.5rem, env(safe-area-inset-right, 0px));
  text-align: center;
  font-size: 0.85rem;
  color: var(--muted);
  border-top: 1px solid var(--line);
}

.site-footer a {
  color: var(--muted);
}

.note {
  font-size: 0.9rem;
  color: var(--muted);
  font-style: italic;
  margin-top: 1rem;
}

/* Profile photo (same asset as Google Sites homepage) */
.profile-intro {
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem 2rem;
  align-items: flex-start;
  margin-bottom: 0.5rem;
}

.profile-figure {
  margin: 0;
  flex: 0 0 auto;
}

.profile-photo {
  display: block;
  width: min(266px, calc(38vw * 1.21));
  max-width: 100%;
  height: auto;
  border-radius: 12px;
  object-fit: cover;
  box-shadow: 0 8px 28px rgba(12, 74, 110, 0.2);
  border: 3px solid rgba(255, 255, 255, 0.95);
}

.profile-intro__text {
  flex: 1 1 280px;
  min-width: 0;
}

.profile-intro h1 {
  margin-top: 0;
}

.family-history {
  margin-top: 1.75rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--line);
  font-size: 0.9rem;
  line-height: 1.55;
}

.family-history h2 {
  font-family: var(--font-serif);
  font-size: 1.05rem;
  color: #134e4a;
  margin-bottom: 0.5rem;
}

.family-history code {
  font-size: 0.92em;
  padding: 0.1rem 0.35rem;
  border-radius: 4px;
  background: var(--accent-soft);
  color: var(--brand);
}

/* --- Small screens: phones and narrow viewports (CSS media queries; no JS required) --- */
@media (max-width: 640px) {
  body {
    overflow-x: hidden;
  }

  .site-title {
    font-size: 1.45rem;
  }

  .site-sub {
    font-size: 0.88rem;
    line-height: 1.45;
  }

  .nav {
    gap: 0.4rem 0.5rem;
  }

  .nav a {
    min-height: 2.75rem;
    display: inline-flex;
    align-items: center;
    padding: 0.45rem 0.7rem;
    font-size: 0.88rem;
  }

  main {
    padding-top: 1.35rem;
    padding-bottom: 2.75rem;
    padding-left: max(1rem, env(safe-area-inset-left, 0px));
    padding-right: max(1rem, env(safe-area-inset-right, 0px));
  }

  .site-header__inner {
    padding-left: max(1rem, env(safe-area-inset-left, 0px));
    padding-right: max(1rem, env(safe-area-inset-right, 0px));
  }

  .card {
    padding: 1.25rem 1.1rem;
  }

  .card h1 {
    font-size: 1.55rem;
  }

  .card h2 {
    font-size: 1.22rem;
  }

  .lead {
    font-size: 1.02rem;
  }

  .profile-intro {
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 1.1rem;
  }

  .profile-intro__text {
    text-align: left;
    width: 100%;
  }

  .profile-photo {
    width: min(240px, 100%);
    margin-inline: auto;
  }

  .btn-row {
    flex-direction: column;
    align-items: stretch;
  }

  .btn-row .btn {
    justify-content: center;
    text-align: center;
  }

  .pub-list li {
    overflow-wrap: anywhere;
  }

  .contact-profile-icons__img--orcid {
    height: 1.2rem;
  }

  .contact-profile-icons__img--linkedin {
    height: 3.6rem;
  }

  .contact-profile-icons {
    gap: 1rem;
    justify-content: flex-start;
  }
}

/* Single-column contact grid only: clear gap between phone and Profiles (portrait phones) */
@media (max-width: 519px) {
  .contact-grid__profiles-label {
    margin-top: 1.35rem;
  }

  .contact-grid__profiles-dd {
    margin-top: 0;
  }
}

@media (max-width: 380px) {
  .site-title {
    font-size: 1.3rem;
  }

  .nav a {
    font-size: 0.82rem;
    padding: 0.4rem 0.55rem;
  }
}