:root {
  --bg0: #eef2ff;
  --bg1: #e0e7ff;
  --ink: #0f172a; /* slate-900 */
  --muted: #475569; /* slate-600 */
  --muted2: #64748b; /* slate-500 */
  --brand: #6366f1; /* indigo-500 */
  --brand2: #8b5cf6; /* violet-500 */

  /* Surfaces */
  --card: rgba(255, 255, 255, 0.66);
  --stroke: rgba(99, 102, 241, 0.22);
  --stroke-strong: rgba(99, 102, 241, 0.32);
  --shadow: 0 18px 50px rgba(2, 6, 23, 0.08);
  --shadow-soft: 0 10px 28px rgba(2, 6, 23, 0.06);
  --shadow-float: 0 26px 80px rgba(2, 6, 23, 0.14);
  --radius: 18px;

  /* Rounded glass bars: top nav, section headings, hero kicker (not full pill) */
  --bar-glass-bg: rgba(255, 255, 255, 0.55);
  --bar-glass-border: 1px solid rgba(99, 102, 241, 0.14);
  --bar-glass-blur: 12px;
  --bar-glass-radius: 16px;
  --bar-glass-shadow: var(--shadow-soft);

  --sticky-section-top: 0.75rem;
  --scroll-progress-height: 3px;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--sticky-section-top) + env(safe-area-inset-top, 0px));
}

body {
  font-family: Inter, system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  color: var(--ink);
  background:
    radial-gradient(1200px 680px at 10% 10%, rgba(99, 102, 241, 0.16), transparent 60%),
    radial-gradient(900px 520px at 90% 18%, rgba(139, 92, 246, 0.14), transparent 58%),
    radial-gradient(1000px 600px at 60% 95%, rgba(99, 102, 241, 0.12), transparent 55%),
    linear-gradient(180deg, var(--bg0), var(--bg1));
  min-height: 100vh;
}

.page {
  position: relative;
  overflow-x: clip;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.page > main {
  flex: 1 0 auto;
}

/* Fixed scroll progress (above content; below Bootstrap modals at 1055) */
.scroll-progress-fixed {
  position: fixed;
  top: env(safe-area-inset-top, 0px);
  left: 0;
  right: 0;
  height: var(--scroll-progress-height);
  z-index: 1040;
  background: rgba(99, 102, 241, 0.09);
  pointer-events: none;
}

.scroll-progress-fill {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, #6366f1 0%, #7c3aed 45%, #8b5cf6 72%, #a855f7 100%);
  border-radius: 0 2px 2px 0;
  box-shadow: 0 0 12px rgba(99, 102, 241, 0.32);
  will-change: width;
}

/* Site header: navbar in normal document flow (#siteHeader) */
.blob {
  position: absolute;
  filter: blur(36px);
  opacity: 0.9;
  transform: translateZ(0);
  pointer-events: none;
}
.blob.blob-1 {
  width: 520px;
  height: 520px;
  left: -240px;
  top: 80px;
  background: radial-gradient(circle at 30% 30%, rgba(99, 102, 241, 0.34), rgba(99, 102, 241, 0) 62%);
  border-radius: 999px;
}
.blob.blob-2 {
  width: 540px;
  height: 360px;
  right: -220px;
  top: 220px;
  background: radial-gradient(circle at 50% 50%, rgba(139, 92, 246, 0.28), rgba(139, 92, 246, 0) 62%);
  border-radius: 999px;
}
.blob.blob-3 {
  width: 520px;
  height: 520px;
  left: 22%;
  bottom: -300px;
  background: radial-gradient(circle at 40% 35%, rgba(99, 102, 241, 0.22), rgba(99, 102, 241, 0) 60%);
  border-radius: 999px;
}

.nav-glass {
  background: var(--bar-glass-bg);
  border: var(--bar-glass-border);
  backdrop-filter: blur(var(--bar-glass-blur));
  -webkit-backdrop-filter: blur(var(--bar-glass-blur));
  border-radius: var(--bar-glass-radius);
  box-shadow: var(--bar-glass-shadow);
}

/* Section / page heading bars — same glass + corner radius as top nav */
.section-head-sticky {
  position: sticky;
  top: calc(var(--sticky-section-top) + env(safe-area-inset-top, 0px));
  z-index: 3;
  padding: 0.75rem 1rem;
  margin-bottom: 1.25rem;
  background: var(--bar-glass-bg);
  border: var(--bar-glass-border);
  backdrop-filter: blur(var(--bar-glass-blur));
  -webkit-backdrop-filter: blur(var(--bar-glass-blur));
  border-radius: var(--bar-glass-radius);
  box-shadow: var(--bar-glass-shadow);
}

.section-head-sticky .section-title {
  font-weight: 750;
  letter-spacing: -0.02em;
  line-height: 1.15;
  background: linear-gradient(135deg, rgba(99, 102, 241, 1), rgba(139, 92, 246, 1));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.section-head-sticky .section-subtitle {
  color: rgba(15, 23, 42, 0.78);
  font-weight: 500;
  font-size: clamp(0.88rem, 1.1vw + 0.82rem, 1.02rem);
  line-height: 1.5;
  margin-top: 0.35rem;
}

.nav-glass .container-fluid {
  row-gap: 0;
}

.site-nav-brand-wrap {
  flex: 1 1 auto;
  min-width: 0;
}

.site-nav-brand {
  display: block;
  font-weight: 750;
  letter-spacing: -0.02em;
  font-size: clamp(0.95rem, 2.5vw, 1.1rem);
  line-height: 1.2;
  padding-top: 0.35rem;
  padding-bottom: 0.35rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* Bootstrap .navbar-brand color would hide the gradient title */
.navbar.nav-glass .navbar-brand.site-nav-brand.grad-text {
  background: linear-gradient(135deg, rgba(99, 102, 241, 1), rgba(139, 92, 246, 1));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent !important;
}

.nav-glass:has(.nav-collapse-panel.show) {
  border-radius: var(--bar-glass-radius);
}

.nav-toggler-glass {
  padding: 0.45rem 0.65rem;
  border-radius: calc(var(--bar-glass-radius) * 0.65);
  border: 1px solid rgba(99, 102, 241, 0.22) !important;
  background: rgba(255, 255, 255, 0.45) !important;
  box-shadow: 0 8px 20px rgba(99, 102, 241, 0.12);
  transition: background-color 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease;
}

.nav-toggler-glass:hover {
  background: rgba(255, 255, 255, 0.65) !important;
  box-shadow: 0 12px 26px rgba(99, 102, 241, 0.16);
}

.nav-toggler-glass:focus-visible {
  outline: none;
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.25), 0 12px 26px rgba(99, 102, 241, 0.14);
}

.nav-collapse-panel {
  flex-basis: 100%;
  flex-grow: 1;
}

.nav-collapse-panel .site-nav-menu {
  flex-direction: column;
  align-items: stretch;
  width: 100%;
}

@media (min-width: 768px) {
  .nav-collapse-panel .site-nav-menu {
    flex-direction: row;
    flex-wrap: wrap;
    justify-content: flex-end;
    align-items: center;
    width: auto;
  }
}

.nav-collapse-panel:not(.show) {
  border-top: 1px solid transparent;
}

.nav-collapse-panel.show {
  margin-top: 0.65rem;
  padding-top: 0.35rem;
  border-top: 1px solid rgba(99, 102, 241, 0.14);
}

.nav-pill .nav-link {
  border-radius: var(--bar-glass-radius);
  color: rgba(15, 23, 42, 0.82);
  font-weight: 600;
  padding: 0.55rem 0.9rem;
  transition: background-color 0.22s ease, transform 0.22s ease, box-shadow 0.22s ease, color 0.22s ease;
}
.nav-pill .nav-link:hover,
.nav-pill .nav-link:focus {
  background: rgba(99, 102, 241, 0.12);
  color: rgba(15, 23, 42, 0.92);
  box-shadow: 0 10px 22px rgba(99, 102, 241, 0.14);
  transform: translateY(-1px);
}

.section {
  padding: 4.25rem 0;
}

.section-title {
  letter-spacing: -0.02em;
  font-weight: 700;
  font-size: clamp(1.25rem, 1.5vw + 1rem, 1.75rem);
  margin: 0;
}

.section-subtitle {
  color: var(--muted);
  margin-top: 0.2rem;
  margin-bottom: 0;
  line-height: 1.45;
}

.hero {
  padding-top: 6.25rem;
  padding-bottom: 3.75rem;
}

.kicker {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.45rem 0.9rem;
  border-radius: var(--bar-glass-radius);
  background: var(--bar-glass-bg);
  border: var(--bar-glass-border);
  backdrop-filter: blur(var(--bar-glass-blur));
  -webkit-backdrop-filter: blur(var(--bar-glass-blur));
  box-shadow: var(--bar-glass-shadow);
  color: rgba(15, 23, 42, 0.82);
  font-weight: 600;
  font-size: clamp(0.86rem, 0.5vw + 0.82rem, 0.9rem);
  letter-spacing: -0.01em;
}

.grad-text {
  background: linear-gradient(135deg, rgba(99, 102, 241, 1), rgba(139, 92, 246, 1));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.headline {
  letter-spacing: -0.04em;
  font-weight: 750;
  line-height: 1.06;
  font-size: clamp(2.25rem, 4vw + 1rem, 3.75rem);
  margin: 0.9rem 0 0.9rem;
}

.lead {
  color: var(--muted);
  font-size: 1.08rem;
  line-height: 1.65;
  max-width: 58ch;
  margin: 0;
}

.bio {
  max-width: none;
}

.bio-text {
  color: var(--muted);
  font-size: 1.02rem;
  line-height: 1.75;
  margin: 0;
}

.timeline {
  position: relative;
  display: grid;
  gap: 1.1rem;
  padding-left: 1.25rem;
}

.timeline::before {
  content: "";
  position: absolute;
  left: 0.45rem;
  top: 0.35rem;
  bottom: 0.35rem;
  width: 2px;
  background: linear-gradient(180deg, rgba(99, 102, 241, 0.55), rgba(139, 92, 246, 0.35));
  border-radius: 999px;
}

.timeline-item {
  position: relative;
  display: grid;
  grid-template-columns: 9.5rem 0.9rem 1fr;
  align-items: start;
  gap: 0.85rem;
}

.timeline-year {
  font-weight: 700;
  letter-spacing: -0.01em;
  color: rgba(15, 23, 42, 0.86);
}

.timeline-dot {
  width: 0.9rem;
  height: 0.9rem;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.8);
  border: 2px solid rgba(99, 102, 241, 0.65);
  box-shadow: 0 10px 22px rgba(99, 102, 241, 0.18);
  margin-top: 0.2rem;
}

.timeline-content .meta {
  margin-top: 0.15rem;
}

.btn-primary {
  --bs-btn-bg: var(--brand);
  --bs-btn-border-color: rgba(99, 102, 241, 0.35);
  --bs-btn-hover-bg: #5255ee;
  --bs-btn-hover-border-color: rgba(99, 102, 241, 0.55);
  --bs-btn-active-bg: #4b4ee8;
  --bs-btn-active-border-color: rgba(99, 102, 241, 0.65);
  box-shadow: 0 14px 34px rgba(99, 102, 241, 0.22);
}

.btn-ghost {
  background: rgba(255, 255, 255, 0.55);
  border: 1px solid rgba(99, 102, 241, 0.2);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  color: rgba(15, 23, 42, 0.84);
  font-weight: 700;
  transition: transform 0.22s ease, box-shadow 0.22s ease, background-color 0.22s ease;
}
.btn-ghost:hover,
.btn-ghost:focus {
  background: rgba(255, 255, 255, 0.72);
  box-shadow: 0 14px 32px rgba(2, 6, 23, 0.08);
  transform: translateY(-1px);
  color: rgba(15, 23, 42, 0.92);
}

/* Floating cards */
.glass-card {
  background: var(--card);
  border: 1px solid var(--stroke);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
}

.hover-lift {
  transition:
    transform 0.28s cubic-bezier(0.22, 1, 0.36, 1),
    box-shadow 0.28s ease,
    border-color 0.28s ease,
    background-color 0.28s ease;
}
.hover-lift:hover {
  transform: translateY(-5px) scale(1.008);
  box-shadow: var(--shadow-float);
  border-color: var(--stroke-strong);
}

.learning-card,
.js-modal-card {
  cursor: pointer;
}

.js-modal-card:focus-visible,
.learning-card:focus-visible {
  outline: none;
  box-shadow: 0 0 0 4px rgba(99, 102, 241, 0.18), var(--shadow);
  border-color: var(--stroke-strong);
}

.meta {
  color: var(--muted2);
  font-size: 0.92rem;
}

.chip {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.2rem 0.55rem;
  border-radius: 999px;
  border: 1px solid rgba(99, 102, 241, 0.18);
  background: rgba(255, 255, 255, 0.5);
  color: rgba(15, 23, 42, 0.76);
  font-weight: 600;
  font-size: 0.82rem;
}

.divider {
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(99, 102, 241, 0.28), transparent);
  margin: 1.2rem 0;
}

.list-clean a {
  text-decoration: none;
  color: rgba(15, 23, 42, 0.9);
}
.list-clean a:hover {
  color: rgba(99, 102, 241, 1);
}

/* Modals: more elegant floating feel */
.modal-backdrop.show {
  opacity: 0.32;
}

.modal-content {
  background: rgba(255, 255, 255, 0.78);
  border: 1px solid rgba(99, 102, 241, 0.22);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-radius: 18px;
  box-shadow: 0 34px 120px rgba(2, 6, 23, 0.22);
}

.resume-pdf-shell {
  min-height: 50vh;
}

.resume-pdf-frame {
  display: block;
  width: 100%;
  height: min(72vh, 880px);
  border: 0;
  background: rgba(255, 255, 255, 0.5);
}

@media (max-width: 575.98px) {
  .resume-pdf-frame {
    height: min(65vh, 720px);
  }
}

.footer {
  padding: 1.75rem 0 1.75rem;
  color: var(--muted2);
}

@media (max-width: 575.98px) {
  :root {
    --page-gutter: 1rem;
  }

  .page .container {
    padding-left: calc(var(--page-gutter) + env(safe-area-inset-left));
    padding-right: calc(var(--page-gutter) + env(safe-area-inset-right));
  }

  #siteHeader .site-header-bar-inner {
    padding-top: calc(0.75rem + env(safe-area-inset-top)) !important;
  }

  .navbar.nav-glass {
    padding: 0.5rem 0.75rem !important;
  }

  .nav-pill {
    flex-wrap: wrap;
    justify-content: flex-end;
  }

  .nav-pill .nav-link {
    padding: 0.45rem 0.7rem;
    font-size: 0.95rem;
  }

  .headline {
    font-size: clamp(1.9rem, 7vw, 2.6rem);
    line-height: 1.08;
  }

  .bio {
    padding: 1rem !important;
  }

  .bio-text {
    font-size: 1rem;
  }

  .timeline {
    padding-left: 1rem;
  }

  .timeline-item {
    grid-template-columns: 1fr;
    gap: 0.5rem;
    padding-left: 0.9rem;
  }

  .timeline::before {
    left: 0.25rem;
  }

  .timeline-dot {
    position: absolute;
    left: -0.2rem;
    top: 0.15rem;
  }

  .timeline-year {
    font-size: 0.95rem;
    color: rgba(15, 23, 42, 0.76);
  }

  .section {
    padding: 3.5rem 0;
  }
  .hero {
    padding-top: 5.5rem;
  }

  .section-head-sticky {
    padding: 0.65rem 0.85rem;
    margin-bottom: 1rem;
  }

  .section-head-sticky .section-subtitle {
    font-size: 0.92rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .hover-lift {
    transition: border-color 0.2s ease, box-shadow 0.2s ease, background-color 0.2s ease;
  }

  .hover-lift:hover {
    transform: none;
  }
}