/* Viveka visual system — static, monochrome, and research-led. */
:root,
[data-theme="dark"] {
  color-scheme: dark;
  --ink: #f5f5f7;
  --ink-muted: #b2b2b8;
  --ink-faint: #74747c;
  --paper: #050505;
  --paper-warm: #0d0d0f;
  --accent: #f5f5f7;
  --accent-light: #dcdce1;
  --accent-pale: #18181c;
  --rule: rgba(255, 255, 255, 0.14);
  --gold: #ffffff;
  --v2: #0b0b0d;
  --nav-bg: rgba(5, 5, 5, 0.94);
  --gradient: linear-gradient(135deg, #a91f70 0%, #6d3fa0 48%, #2466b3 100%);
}

html { background: #050505; scroll-behavior: smooth; }

body {
  max-width: none;
  margin: 0;
  background: #050505;
  color: var(--ink);
  box-shadow: none;
  font-family: "DM Sans", Inter, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 16px;
  line-height: 1.65;
}

body,
body::before,
body::after { animation: none !important; background-image: none; }

nav {
  height: 82px;
  padding: 0 clamp(1.25rem, 5vw, 5rem);
  background: var(--nav-bg);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
}

.nav-logo {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  color: #fff;
  font-family: inherit;
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: 0.01em;
}

.nav-logo::before {
  content: "V";
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border: 1px solid rgba(255, 255, 255, 0.72);
  border-radius: 50%;
  color: #fff;
  font-size: 0.84rem;
  font-weight: 500;
}

.nav-links { gap: clamp(0.2rem, 1.4vw, 1.4rem); }

.nav-links a {
  height: 82px;
  padding: 0 0.65rem;
  color: #a7a7ad;
  font-size: 0.78rem;
  font-weight: 400;
  line-height: 82px;
  letter-spacing: 0.04em;
  text-transform: none;
}

.nav-links a:hover,
.nav-links a.active { color: #fff !important; }

.dropdown-menu {
  min-width: 220px;
  padding: 0.5rem;
  background: #0b0b0d;
  border: 1px solid var(--rule);
  border-radius: 12px;
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.55);
}

.dropdown-menu a {
  height: auto;
  padding: 0.8rem 0.9rem;
  border: 0;
  border-radius: 8px;
  line-height: 1.4;
}

.dropdown-menu a:hover { background: #17171a; }
.dark-toggle { display: none !important; }

section,
.page-section,
.tenure-block,
.page-header {
  padding-right: clamp(1.4rem, 7vw, 7rem);
  padding-left: clamp(1.4rem, 7vw, 7rem);
  border-color: var(--rule);
}

.hero {
  min-height: calc(100vh - 82px);
  padding: clamp(4.5rem, 8vw, 8rem) clamp(1.4rem, 7vw, 7rem);
  gap: clamp(3rem, 7vw, 7rem);
  border-bottom: 1px solid var(--rule);
}

.hero-eyebrow,
.page-eyebrow,
.section-label,
.tenure-eyebrow,
.role-label,
.pub-type-badge,
.tenure-block-year,
.lead-role,
.tenure-meta-item {
  color: #8f8f97;
  font-family: "DM Sans", sans-serif;
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.hero-title,
.page-title,
.section-title,
.tenure-title,
.tenure-block-name,
.tenure-card-title,
.team-redirect h3,
.pub-title {
  color: #fff;
  font-family: inherit;
  font-style: normal;
  letter-spacing: -0.045em;
}

.hero-title {
  max-width: 740px;
  font-size: clamp(3.35rem, 6.5vw, 6.5rem);
  font-weight: 500;
  line-height: 0.98;
}

.hero-title em { color: #fff; font-style: normal; }

.hero-sub,
.page-sub,
.tenure-sub,
.intro-text p,
.about-text p,
.pillar-desc,
.tenure-card-desc,
.advisor-affil,
.lead-focus,
.member-focus,
.pub-oneliner,
.concept-val { color: var(--ink-muted); }

.hero-sub {
  max-width: 590px;
  font-size: clamp(1rem, 1.4vw, 1.2rem);
}

.btn,
.btn-fill {
  padding: 0.85rem 1.35rem;
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.65);
  border-radius: 999px;
  color: #fff;
  font-size: 0.73rem;
  font-weight: 500;
  letter-spacing: 0.05em;
  text-transform: none;
}

.btn-fill { background: #fff; border-color: #fff; color: #050505; }

.btn:hover,
.btn-fill:hover {
  background: var(--gradient);
  border-color: transparent;
  color: #fff;
  transform: translateY(-1px);
}

.hero-photo-wrapper,
.tenure-hero-photo {
  overflow: hidden;
  border: 1px solid var(--rule);
  border-radius: 22px;
  box-shadow: 0 32px 80px rgba(0, 0, 0, 0.42);
}

.hero-photo-wrapper img,
[data-theme="dark"] .hero-photo-wrapper img,
.tenure-hero-photo img {
  filter: brightness(0.68) contrast(1.06) saturate(0.9);
  transition: filter 0.4s ease;
}

.hero-photo-wrapper:hover img,
.tenure-hero-photo:hover img { filter: none; }

.hero-photo-wrapper::after { transition: opacity 0.4s ease; }
.hero-photo-wrapper:hover::after { opacity: 0; }

.tenure-hero-photo .full-frame-photo {
  height: auto;
  aspect-ratio: 1;
  object-fit: contain;
}

.hero-quote {
  padding: 1.15rem 1.35rem;
  background: #0c0c0e;
  border: 1px solid var(--rule);
  border-left: 3px solid #8e3b9d;
  border-radius: 0 12px 12px 0;
  color: var(--ink-muted);
}

.section-title {
  font-size: clamp(2.2rem, 4.4vw, 4.6rem);
  font-weight: 500;
  line-height: 1.05;
}

#tenures .section-title {
  max-width: 1000px;
}

.about-grid,
.intro-grid { gap: clamp(2.5rem, 7vw, 7rem); }

.pillar,
.concept { border-color: var(--rule); }

.pillar-num,
.concept-key { color: #8d8d95; font-family: inherit; }
.pillar-title { color: #fff; font-weight: 500; }

.tenure-grid,
.advisors-grid,
.leads-grid,
.members-grid,
.pub-grid { gap: 1rem; }

.tenure-card,
.advisor-card,
.lead-card,
.member-card,
.pub-card {
  overflow: hidden;
  background: #0b0b0d;
  border: 1px solid var(--rule);
  border-radius: 18px;
  color: #fff;
}

.tenure-card:hover,
.advisor-card:hover,
.lead-card:hover,
.member-card:hover,
.pub-card:hover {
  border-color: rgba(255, 255, 255, 0.32);
  box-shadow: 0 18px 50px rgba(0, 0, 0, 0.34);
  transform: translateY(-3px);
}

.tenure-card-header,
.tenure-card-header.v2,
.team-redirect { background: var(--gradient); color: #fff; }

.tenure-card-header { min-height: 190px; }
.tenure-card-body { background: #0b0b0d; }

.theme-tag,
.lead-tag,
.pub-tag,
.supporter-badge {
  background: #151518;
  border: 1px solid var(--rule);
  border-radius: 999px;
  color: #bdbdc3;
}

.tenure-card-link,
.tenure-block-link { color: #fff !important; }

.advisor-avatar,
.lead-avatar,
.member-avatar,
.v2 .lead-avatar,
.v2 .member-avatar {
  background: var(--gradient) !important;
  color: #fff !important;
}

.advisor-avatar { border-radius: 50%; }
.supporters-row { gap: 0.75rem; }
.supporter-badge { padding: 0.85rem 1.25rem; }

.page-header {
  padding-top: clamp(5rem, 10vw, 9rem);
  padding-bottom: clamp(3.5rem, 7vw, 6rem);
}

.page-title {
  font-size: clamp(3.4rem, 8vw, 7rem);
  font-weight: 500;
}

.tenure-block {
  padding-top: clamp(4rem, 7vw, 7rem);
  padding-bottom: clamp(4rem, 7vw, 7rem);
}

.tenure-block-name { font-weight: 500; }
.lead-card, .member-card { background: #0b0b0d; }
.lead-role, .v2 .lead-role { color: #a66bc1 !important; }
.social-link { color: #d5d5da; }

.tenure-hero {
  min-height: calc(100vh - 82px);
  padding: clamp(4rem, 7vw, 7rem) clamp(1.4rem, 7vw, 7rem);
  background: #050505;
  border-color: var(--rule);
}

.tenure-hero::before { color: #fff; opacity: 0.035; }

.tenure-title {
  font-size: clamp(3.8rem, 8vw, 8rem);
  font-weight: 500;
  line-height: 0.95;
}

.tenure-meta { gap: 2.5rem; }

.tenure-meta-val {
  color: #fff;
  font-size: 0.92rem;
  font-weight: 400;
  letter-spacing: 0;
  text-transform: none;
}

.page-section {
  padding-top: clamp(4.5rem, 8vw, 8rem);
  padding-bottom: clamp(4.5rem, 8vw, 8rem);
}

.team-redirect {
  padding: clamp(2rem, 4vw, 4rem);
  border-radius: 18px;
}

.pub-img {
  background: linear-gradient(145deg, #961e68, #294f9d);
  border-color: var(--rule);
  color: #fff;
}

.pub-body { background: #0b0b0d; }
.pub-title { font-weight: 500; }

footer {
  padding: 2.5rem clamp(1.4rem, 7vw, 7rem);
  background: #050505;
  border-color: var(--rule);
}

.footer-logo { color: #fff; font-family: inherit; font-weight: 500; }
.footer-links a { color: #9999a1; }
.footer-links a:hover { color: #fff; }

@media (max-width: 880px) {
  .hero,
  .tenure-hero { min-height: auto; grid-template-columns: 1fr; }

  .hero-photo-wrapper img,
  .tenure-hero-photo img { height: min(68vw, 480px); }
}

@media (max-width: 640px) {
  nav { height: 68px; padding: 0 1rem; }
  .nav-logo { font-size: 0; }
  .nav-logo::before { width: 32px; height: 32px; font-size: 0.8rem; }
  .nav-links { gap: 0; }
  .nav-links a { height: 68px; padding: 0 0.42rem; font-size: 0.69rem; line-height: 68px; }
  .dropdown-menu { right: 0; left: auto; }
  .hero-title { font-size: clamp(3rem, 14vw, 4.5rem); }
  .hero { padding-top: 4.5rem; }
  .hero-ctas { gap: 0.65rem; }
  .tenure-card-header { min-height: 155px; }
  footer { align-items: flex-start; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    scroll-behavior: auto !important;
    animation: none !important;
    transition-duration: 0.01ms !important;
  }
}


/* AI Club project-page structure for Viveka tenure pages. */
.tenure-page {
  padding-bottom: clamp(3rem, 6vw, 6rem);
}

.tenure-hero {
  display: block;
  min-height: 0;
  max-width: 1120px;
  margin: 0 auto;
  padding: clamp(4.5rem, 8vw, 7.5rem) clamp(1.4rem, 5vw, 4rem) 2.5rem;
  background: transparent;
  border-bottom: 0;
  text-align: center;
}

.tenure-hero::before {
  display: none;
}

.tenure-hero-content {
  max-width: 940px;
  margin: 0 auto;
}

.tenure-eyebrow {
  margin-bottom: 1.25rem;
}

.tenure-title {
  font-size: clamp(4rem, 9vw, 7.8rem);
}

.tenure-sub {
  max-width: 900px;
  margin: 1.8rem auto 2.2rem;
  font-size: clamp(1.05rem, 1.8vw, 1.35rem);
  line-height: 1.65;
}

.tenure-meta {
  justify-content: center;
  gap: 1.25rem 3rem;
}

.tenure-actions {
  display: flex;
  justify-content: center;
  margin-top: 2.2rem;
}

.tenure-back {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 0.65rem 1.25rem;
  border: 1px solid rgba(255, 255, 255, 0.26);
  border-radius: 999px;
  color: #d1d1d6;
  font-size: 0.82rem;
  font-weight: 500;
  text-decoration: none;
  transition: border-color 180ms ease, color 180ms ease, transform 180ms ease;
}

.tenure-back:hover {
  border-color: rgba(255, 255, 255, 0.68);
  color: #fff;
  transform: translateY(-1px);
}

.tenure-hero-photo {
  max-width: 1000px;
  margin: clamp(2.5rem, 5vw, 4.5rem) auto 0;
  background: #0b0b0d;
  border-radius: 22px;
}

.tenure-hero-photo img,
.tenure-hero-photo .full-frame-photo {
  width: 100%;
  height: auto;
  max-height: 680px;
  aspect-ratio: auto;
  object-fit: contain;
  filter: none;
}

.page-section {
  max-width: 1050px;
  margin: 0 auto;
  padding: clamp(2.5rem, 5vw, 4rem) 0;
  border-top: 1px solid var(--rule);
  border-bottom: 0;
}

.page-section .section-title {
  max-width: 920px;
  margin-bottom: 1.5rem;
  font-size: clamp(2rem, 3.5vw, 3.15rem);
}

.intro-grid {
  grid-template-columns: minmax(220px, 0.8fr) minmax(0, 1.5fr);
  gap: clamp(2rem, 5vw, 5rem);
}

.intro-grid-single {
  grid-template-columns: minmax(0, 1fr);
}

.intro-grid-single > div,
.intro-grid-single .section-title,
.intro-grid-single .intro-text {
  width: 100%;
  max-width: 100%;
}

.intro-grid-single .intro-text p {
  max-width: 980px;
  font-size: clamp(1rem, 1.35vw, 1.15rem);
}

.team-section {
  padding-top: clamp(2.5rem, 5vw, 4rem) !important;
}

.team-redirect {
  padding: clamp(1.6rem, 3vw, 2.5rem);
  background: #0b0b0d;
  border: 1px solid var(--rule);
  border-radius: 20px;
}

.team-redirect h3 {
  font-size: clamp(1.5rem, 2.5vw, 2rem);
}

.team-redirect .btn,
.team-redirect .btn-fill {
  background: transparent;
  border-color: rgba(255, 255, 255, 0.5);
  color: #fff;
}

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

.pub-card {
  min-height: 200px;
  border-radius: 20px;
}

.recruitment-section > div[style*="max-width"] {
  max-width: none !important;
  margin-top: 1.5rem !important;
}

.recruitment-section iframe {
  background: #0b0b0d;
}

.recruitment-section > div[style*="height"] {
  overflow: hidden;
  border-radius: 20px !important;
}

@media (max-width: 1120px) {
  .page-section {
    width: calc(100% - 48px);
  }
}

@media (max-width: 760px) {
  .tenure-hero {
    padding-top: 3.5rem;
  }

  .tenure-title {
    font-size: clamp(3.4rem, 18vw, 5.4rem);
  }

  .tenure-meta {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    text-align: left;
  }

  .tenure-hero-photo {
    margin-top: 2.5rem;
    border-radius: 16px;
  }

  .page-section {
    width: calc(100% - 40px);
    padding: 2.5rem 0;
  }

  .intro-grid,
  .pub-grid {
    grid-template-columns: 1fr;
  }

  .team-redirect {
    align-items: flex-start;
  }
}


/* Refined shared heading, brand, and team-card scale. */
.nav-logo::before {
  display: none;
}

.nav-logo img {
  width: 78px;
  height: 48px;
  object-fit: contain;
}

.nav-logo span {
  font-size: 0.95rem;
}

.section-title,
.page-section .section-title {
  max-width: 1040px;
  font-size: clamp(1.9rem, 2.8vw, 3rem);
  line-height: 1.12;
}

#tenures .section-title {
  max-width: 1040px;
}

.leads-grid,
.members-grid {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 20px;
}

.lead-card,
.member-card {
  flex: 0 1 calc((100% - 80px) / 5);
  min-width: 168px;
  padding: 10px;
  gap: 0.75rem;
}

.lead-avatar,
.member-avatar,
.v2 .lead-avatar,
.v2 .member-avatar {
  width: 100%;
  height: auto;
  aspect-ratio: 4 / 5;
  margin: 0 0 0.7rem;
  overflow: hidden;
  border-radius: 14px;
  font-size: 1.4rem;
}

.lead-avatar img,
.member-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

.lead-name,
.member-name {
  font-size: 0.96rem;
  line-height: 1.35;
}

.lead-focus,
.member-focus {
  font-size: 0.76rem;
  line-height: 1.5;
}

@media (max-width: 1040px) {
  .lead-card,
  .member-card {
    flex-basis: calc((100% - 60px) / 4);
  }
}

@media (max-width: 760px) {
  .nav-logo img {
    width: 66px;
    height: 42px;
  }

  .nav-logo span {
    display: none;
  }

  .section-title,
  .page-section .section-title {
    font-size: clamp(1.75rem, 8vw, 2.45rem);
  }

  .lead-card,
  .member-card {
    flex-basis: calc((100% - 16px) / 2);
    min-width: 140px;
  }
}

@media (max-width: 420px) {
  .lead-card,
  .member-card {
    flex-basis: 100%;
  }
}