/* =========================================================
   Bellaatrix — design tokens
   ========================================================= */
:root {
  --navy-50: oklch(97.2% 0.008 250);
  --navy-100: oklch(93.3% 0.014 250);
  --navy-200: oklch(87.5% 0.024 250);
  --navy-400: oklch(60% 0.075 250);
  --navy-600: oklch(44% 0.075 252);
  --navy-900: oklch(19% 0.032 264);
  --ember: oklch(63% 0.219 25);
  --ember-soft: oklch(95% 0.03 25);

  --background: oklch(100% 0 0);
  --foreground: var(--navy-900);
  --card: oklch(100% 0 0);
  --muted: var(--navy-50);
  --muted-foreground: var(--navy-600);
  --accent: var(--ember-soft);
  --accent-foreground: var(--ember);
  --primary: var(--ember);
  --primary-foreground: oklch(100% 0 0);
  --border: var(--navy-100);

  --shadow-lift: 0 24px 60px -28px color-mix(in oklab, var(--navy-900) 45%, transparent);
  --shadow-glow: 0 20px 60px -20px color-mix(in oklab, var(--ember) 45%, transparent);

  --font-sans: "Space Grotesk", ui-sans-serif, system-ui, sans-serif;
  --font-display: "Fraunces", ui-serif, Georgia, serif;
}

/* =========================================================
   Base
   ========================================================= */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

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

body {
  position: relative;
  min-height: 100vh;
  font-family: var(--font-sans);
  color: var(--foreground);
  background-color: var(--background);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

img,
svg,
canvas {
  display: block;
  max-width: 100%;
}

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

ul {
  list-style: none;
}

.italic {
  font-style: italic;
}
.accent {
  color: var(--primary);
}

.container {
  width: 100%;
  max-width: 80rem;
  margin-inline: auto;
  padding-inline: 1.5rem;
}

@media (min-width: 1024px) {
  .container {
    padding-inline: 2rem;
  }
}

.section {
  position: relative;
  padding-block: 6rem;
}

@media (min-width: 1024px) {
  .section {
    padding-block: 8rem;
  }
}

.section-head {
  max-width: 42rem;
  margin-bottom: 4rem;
}

.section-label {
  margin-bottom: 1rem;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ember);
}

h2 {
  font-family: var(--font-display);
  font-size: clamp(2.25rem, 1.6rem + 2vw, 3rem);
  font-weight: 500;
  line-height: 1.15;
  letter-spacing: -0.025em;
}

h3 {
  font-size: 1.125rem;
  font-weight: 600;
}

.lede {
  margin-top: 1.25rem;
  font-size: 1.125rem;
  line-height: 1.65;
  color: var(--muted-foreground);
}

.icon {
  width: 1rem;
  height: 1rem;
}
.icon-sm {
  width: 0.875rem;
  height: 0.875rem;
}
.icon-xs {
  width: 0.875rem;
  height: 0.875rem;
}
.icon-badge .icon {
  width: 1.25rem;
  height: 1.25rem;
}

/* =========================================================
   Buttons
   ========================================================= */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  border-radius: 9999px;
  padding: 0.875rem 1.75rem;
  font-size: 0.875rem;
  font-weight: 500;
  transition:
    transform 0.3s ease,
    background-color 0.3s ease,
    color 0.3s ease;
}

.btn-primary {
  background-color: var(--primary);
  color: var(--primary-foreground);
  box-shadow: var(--shadow-glow);
}
.btn-primary:hover {
  transform: translateY(-2px);
}
.btn-primary:hover .icon {
  transform: translateX(4px);
}
.btn-primary .icon {
  transition: transform 0.3s ease;
}

.btn-ghost {
  border: 1px solid var(--border);
  background-color: color-mix(in oklab, var(--background) 70%, transparent);
  backdrop-filter: blur(8px);
}
.btn-ghost:hover {
  background-color: var(--muted);
}

.btn-outline {
  border: 1px solid var(--border);
}
.btn-outline:hover {
  background-color: var(--muted);
}

.btn-dark {
  position: relative;
  overflow: hidden;
  padding: 0.625rem 1.25rem;
  background-color: var(--navy-900);
  color: var(--background);
}
.btn-dark::before {
  content: "";
  position: absolute;
  inset: 0;
  background-color: var(--primary);
  transform: translateX(-100%);
  transition: transform 0.5s ease;
}
.btn-dark:hover {
  transform: translateY(-2px);
}
.btn-dark:hover::before {
  transform: translateX(0);
}
.btn-dark span {
  position: relative;
}

.actions {
  margin-top: 2.5rem;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1rem;
}

.hero-copy .actions {
  justify-content: center;
}

/* =========================================================
   Header
   ========================================================= */
.site-header {
  position: fixed;
  inset-inline: 0;
  top: 0;
  z-index: 50;
  border-bottom: 1px solid transparent;
  background-color: transparent;
  transition: all 0.5s ease;
}

.site-header.scrolled {
  border-bottom-color: var(--border);
  background-color: color-mix(in oklab, var(--background) 80%, transparent);
  backdrop-filter: blur(20px);
  box-shadow: 0 1px 2px color-mix(in oklab, var(--navy-900) 8%, transparent);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-block: 1rem;
}

.top-brand {
  display: flex;
  align-items: start;
  gap: 1.625rem;
  margin-left: -280px;
}

.site-nav {
  display: none;
  gap: 2rem;
  margin-left: -65px;
}
@media (min-width: 768px) {
  .site-nav {
    display: flex;
  }
}
.site-nav a {
  position:relative;
  font-size: 0.875rem;
  color: var(--muted-foreground);
  transition: color 0.3s ease;
}
.site-nav a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -0.25rem;
  height: 1px;
  width: 100%;
  background-color: var(--primary);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 0.3s ease;
}
.site-nav a:hover {
  color: var(--foreground);
}
.site-nav a:hover::after {
  transform: scaleX(1);
  transform-origin: left;
}
.back-to-site {
  margin-right: -250px;
}

/* =========================================================
   Hero
   ========================================================= */
.hero {
  padding-top: 10rem;
  padding-bottom: 6rem;
}
@media (min-width: 1024px) {
  .hero {
    padding-top: 12rem;
    padding-bottom: 8rem;
  }
}

.hero-copy {
  max-width: 56rem;
  margin-inline: auto;
  text-align: center;
}

.pill {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  border: 1px solid var(--border);
  border-radius: 9999px;
  background-color: color-mix(in oklab, var(--background) 70%, transparent);
  padding: 0.375rem 1rem;
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--muted-foreground);
  backdrop-filter: blur(8px);
}

.hero-title {
  margin-top: 2rem;
  font-family: var(--font-display);
  font-size: clamp(3rem, 2rem + 4vw, 4.5rem);
  font-weight: 500;
  line-height: 1.05;
  letter-spacing: -0.025em;
}

.hero-copy .lede {
  max-width: 42rem;
  margin-inline: auto;
  margin-top: 1.5rem;
}

.text-shimmer {
  background: linear-gradient(90deg, var(--navy-900) 0%, var(--ember) 35%, var(--navy-900) 70%);
  background-size: 200% auto;
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  animation: shimmer 6s linear infinite;
}

.marquee {
  position: relative;
  margin-top: 5rem;
  overflow: hidden;
  -webkit-mask-image: linear-gradient(to right, transparent, black 12%, black 88%, transparent);
  mask-image: linear-gradient(to right, transparent, black 12%, black 88%, transparent);
}

.marquee-track {
  display: flex;
  width: max-content;
  gap: 1rem;
  animation: marquee 30s linear infinite;
}

.chip {
  border: 1px solid var(--border);
  border-radius: 9999px;
  background-color: color-mix(in oklab, var(--background) 60%, transparent);
  padding: 0.5rem 1.25rem;
  font-size: 0.875rem;
  white-space: nowrap;
  color: var(--muted-foreground);
  backdrop-filter: blur(8px);
}

/* =========================================================
   Cards & grids
   ========================================================= */
.grid {
  display: grid;
  gap: 1.5rem;
}
@media (min-width: 640px) {
  .grid-3 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}
@media (min-width: 1024px) {
  .grid-3 {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

.steps {
  position: relative;
}
.steps-line {
  display: none;
  position: absolute;
  inset-inline: 3rem;
  top: 6rem;
  height: 1px;
  pointer-events: none;
  background: linear-gradient(to right, transparent, var(--border), transparent);
}
@media (min-width: 1024px) {
  .steps-line {
    display: block;
  }
}

.card {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--border);
  border-radius: 1.5rem;
  background-color: color-mix(in oklab, var(--card) 70%, transparent);
  padding: 2rem;
  backdrop-filter: blur(8px);
  transition:
    transform 0.5s ease,
    border-color 0.5s ease,
    box-shadow 0.5s ease,
    opacity 0.7s ease;
}
.card:hover {
  transform: translateY(-6px);
  border-color: color-mix(in oklab, var(--primary) 40%, transparent);
  box-shadow: var(--shadow-lift);
}
.card h3 {
  position: relative;
  margin-top: 1.5rem;
}
.card p {
  position: relative;
  margin-top: 0.75rem;
  font-size: 0.875rem;
  line-height: 1.65;
  color: var(--muted-foreground);
}

.card-glow {
  pointer-events: none;
  position: absolute;
  top: -4rem;
  right: -4rem;
  height: 10rem;
  width: 10rem;
  border-radius: 9999px;
  background-color: var(--accent);
  opacity: 0;
  filter: blur(64px);
  transition: opacity 0.5s ease;
}
.card:hover .card-glow {
  opacity: 1;
}

.card-underline {
  position: absolute;
  inset-inline: 2rem;
  bottom: 0;
  height: 1px;
  background-color: var(--primary);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.5s ease;
}
.card:hover .card-underline {
  transform: scaleX(1);
}

.card-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.icon-badge {
  position: relative;
  display: inline-flex;
  height: 3rem;
  width: 3rem;
  align-items: center;
  justify-content: center;
  border-radius: 1rem;
  background-color: var(--accent);
  color: var(--accent-foreground);
  transition: transform 0.5s ease;
}
.card:hover .icon-badge {
  transform: rotate(-6deg) scale(1.1);
}

.step-number {
  font-family: var(--font-display);
  font-size: 3rem;
  font-weight: 600;
  line-height: 1;
  color: var(--navy-100);
  transition: color 0.5s ease;
}
.card:hover .step-number {
  color: var(--accent);
}

.steps .card h3 {
  font-size: 1.25rem;
}

/* =========================================================
   GTU panel
   ========================================================= */
.panel-dark {
  position: relative;
  overflow: hidden;
  border-radius: 2rem;
  background-color: var(--navy-900);
  color: var(--background);
}

.gtu-panel {
  padding: 2.5rem;
}
@media (min-width: 1024px) {
  .gtu-panel {
    padding: 4rem;
  }
}

.panel-aurora {
  pointer-events: none;
  position: absolute;
  inset: 0;
  overflow: hidden;
}
.panel-blob {
  position: absolute;
  height: 18rem;
  width: 18rem;
  border-radius: 9999px;
  filter: blur(90px);
  opacity: 1;
}
.panel-blob-a {
  left: -5rem;
  top: 0;
  background: color-mix(in oklab, var(--primary) 25%, transparent);
}
.panel-blob-b {
  right: -5rem;
  bottom: 0;
  background: color-mix(in oklab, var(--navy-400) 30%, transparent);
}

.gtu-grid {
  position: relative;
  display: grid;
  gap: 3rem;
}
@media (min-width: 1024px) {
  .gtu-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    align-items: center;
  }
}

.panel-text {
  margin-top: 1.5rem;
  line-height: 1.65;
  color: var(--navy-200);
}
.panel-text.small {
  font-size: 0.875rem;
  margin-top: 0.75rem;
}

.badge-list {
  margin-top: 2rem;
  display: grid;
  gap: 0.75rem;
}
.badge-list li {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.875rem;
  color: var(--navy-100);
}
.badge-icon {
  display: inline-flex;
  height: 2.25rem;
  width: 2.25rem;
  align-items: center;
  justify-content: center;
  border-radius: 0.75rem;
  background-color: color-mix(in oklab, var(--background) 10%, transparent);
}

.stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
}
.stat {
  border: 1px solid color-mix(in oklab, var(--background) 10%, transparent);
  border-radius: 1rem;
  background-color: color-mix(in oklab, var(--background) 5%, transparent);
  padding: 1.5rem;
  backdrop-filter: blur(8px);
}
.stat-value {
  font-family: var(--font-display);
  font-size: 2.25rem;
  font-weight: 600;
}
.stat-label {
  margin-top: 0.25rem;
  font-size: 0.875rem;
  color: var(--navy-200);
}

/* =========================================================
   People
   ========================================================= */
.person {
  position: relative;
  display: flex;
  align-items: center;
  gap: 1rem;
}

.avatar {
  position: relative;
  display: inline-flex;
  height: 3.5rem;
  width: 3.5rem;
  flex-shrink: 0;
  align-items: center;
  justify-content: center;
  border-radius: 1rem;
  background-color: var(--navy-900);
  font-family: var(--font-display);
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--background);
  transition: transform 0.5s ease;
}
.card:hover .avatar {
  transform: scale(1.05);
}
.avatar-lg {
  height: 4rem;
  width: 4rem;
  font-size: 1.25rem;
}
.avatar-soft {
  background-color: color-mix(in oklab, var(--background) 10%, transparent);
}
.avatar-badge {
  position: absolute;
  bottom: -0.375rem;
  right: -0.375rem;
  display: inline-flex;
  height: 1.75rem;
  width: 1.75rem;
  align-items: center;
  justify-content: center;
  border-radius: 0.75rem;
  background-color: var(--primary);
  color: var(--primary-foreground);
}

.person-name {
  font-weight: 600;
}
.person-role {
  margin-top: 0.125rem;
  font-size: 0.875rem;
  color: var(--primary);
}
.person-bio {
  position: relative;
  margin-top: 1.25rem;
  font-size: 0.875rem;
  line-height: 1.65;
  color: var(--muted-foreground);
}

.mentor {
  margin-top: 1.5rem;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 1.5rem;
  padding: 2rem;
}
@media (min-width: 640px) {
  .mentor {
    flex-direction: row;
    align-items: center;
  }
}
@media (min-width: 1024px) {
  .mentor {
    padding: 2.5rem;
  }
}
.mentor-copy {
  max-width: 42rem;
}
.mentor-head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.75rem;
}
.mentor-name {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 600;
}
.tag {
  border: 1px solid color-mix(in oklab, var(--background) 20%, transparent);
  border-radius: 9999px;
  padding: 0.25rem 0.75rem;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--navy-100);
}

/* =========================================================
   CTA
   ========================================================= */
.cta {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--border);
  border-radius: 2rem;
  background-color: color-mix(in oklab, var(--card) 80%, transparent);
  padding: 4rem 2rem;
  text-align: center;
  backdrop-filter: blur(8px);
  box-shadow: 0 1px 2px color-mix(in oklab, var(--navy-900) 8%, transparent);
}
@media (min-width: 1024px) {
  .cta {
    padding: 5rem 4rem;
  }
}
.cta-glow {
  pointer-events: none;
  position: absolute;
  inset: 0;
  overflow: hidden;
}
.cta-glow .aurora {
  position: absolute;
  left: 50%;
  top: 50%;
  height: 320px;
  width: 620px;
  transform: translate(-50%, -50%);
  border-radius: 9999px;
  background: var(--accent);
  filter: blur(100px);
}
.cta-inner {
  position: relative;
}
.cta h2 {
  max-width: 42rem;
  margin-inline: auto;
}
.cta .lede {
  max-width: 36rem;
  margin-inline: auto;
}
.cta .actions {
  justify-content: center;
}

/* =========================================================
   Footer
   ========================================================= */
.site-footer {
  position: relative;
  background-color: var(--navy-900);
  color: var(--background);
}
.site-footer .container {
  padding-block: 4rem;
}
.footer-top {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  justify-content: space-between;
  gap: 2.5rem;
}
@media (min-width: 1024px) {
  .footer-top {
    flex-direction: row;
  }
}
.footer-brand {
  max-width: 24rem;
}
.footer-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 2rem;
}
.footer-nav a {
  font-size: 0.875rem;
  color: var(--navy-200);
  transition: color 0.3s ease;
}
.footer-nav a:hover {
  color: var(--background);
}
.footer-bottom {
  margin-top: 3rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  border-top: 1px solid color-mix(in oklab, var(--background) 10%, transparent);
  padding-top: 1.5rem;
  font-size: 0.875rem;
  color: var(--navy-200);
}
@media (min-width: 640px) {
  .footer-bottom {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }
}

/* =========================================================
   Animated backdrop
   ========================================================= */
.backdrop {
  pointer-events: none;
  position: fixed;
  inset: 0;
  z-index: -10;
  overflow: hidden;
}
.backdrop-wash {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to bottom,
    var(--background),
    color-mix(in oklab, var(--navy-50) 40%, transparent),
    var(--background)
  );
}
.aurora {
  position: absolute;
  border-radius: 9999px;
}
.aurora-1 {
  left: -12%;
  top: -10%;
  height: 62vh;
  width: 62vh;
  opacity: 0.7;
  filter: blur(110px);
  background: radial-gradient(
    circle,
    color-mix(in oklab, var(--ember) 38%, transparent) 0%,
    transparent 70%
  );
  animation: aurora-1 22s ease-in-out infinite;
}
.aurora-2 {
  right: -12%;
  top: 8%;
  height: 58vh;
  width: 58vh;
  opacity: 0.6;
  filter: blur(120px);
  background: radial-gradient(
    circle,
    color-mix(in oklab, var(--navy-400) 45%, transparent) 0%,
    transparent 70%
  );
  animation: aurora-2 26s ease-in-out infinite;
}
.aurora-3 {
  bottom: -15%;
  left: 28%;
  height: 55vh;
  width: 55vh;
  opacity: 0.5;
  filter: blur(130px);
  background: radial-gradient(
    circle,
    color-mix(in oklab, var(--ember) 26%, transparent) 0%,
    transparent 70%
  );
  animation: aurora-3 30s ease-in-out infinite;
}
.panel-blob,
.cta-glow .aurora {
  animation-duration: 24s;
}

.backdrop-grid {
  position: absolute;
  inset: 0;
  opacity: 0.35;
  background-image:
    linear-gradient(
      to right,
      color-mix(in oklab, var(--navy-200) 55%, transparent) 1px,
      transparent 1px
    ),
    linear-gradient(
      to bottom,
      color-mix(in oklab, var(--navy-200) 55%, transparent) 1px,
      transparent 1px
    );
  background-size: 64px 64px;
  -webkit-mask-image: radial-gradient(ellipse 80% 60% at 50% 30%, black 20%, transparent 80%);
  mask-image: radial-gradient(ellipse 80% 60% at 50% 30%, black 20%, transparent 80%);
}

.beam {
  position: absolute;
  top: 0;
  height: 40vh;
  width: 1px;
  background: linear-gradient(
    to bottom,
    transparent,
    color-mix(in oklab, var(--ember) 60%, transparent),
    transparent
  );
  animation: beam 9s linear infinite;
}

#constellation {
  position: absolute;
  inset: 0;
  height: 100%;
  width: 100%;
}

.backdrop-grain {
  position: absolute;
  inset: 0;
  opacity: 0.16;
  mix-blend-mode: multiply;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='3'/%3E%3C/filter%3E%3Crect width='140' height='140' filter='url(%23n)' opacity='0.5'/%3E%3C/svg%3E");
}

/* =========================================================
   Motion
   ========================================================= */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition:
    opacity 0.7s ease,
    transform 0.7s ease;
}
.reveal.is-visible {
  opacity: 1;
  transform: none;
}

.float {
  animation: float 7s ease-in-out infinite;
}

@keyframes shimmer {
  to {
    background-position: 200% center;
  }
}

@keyframes marquee {
  from {
    transform: translateX(0);
  }
  to {
    transform: translateX(-50%);
  }
}

@keyframes aurora-1 {
  0%,
  100% {
    transform: translate(0, 0) scale(1);
  }
  50% {
    transform: translate(40px, 30px) scale(1.12);
  }
}

@keyframes aurora-2 {
  0%,
  100% {
    transform: translate(0, 0) scale(1.05);
  }
  50% {
    transform: translate(-50px, 40px) scale(0.95);
  }
}

@keyframes aurora-3 {
  0%,
  100% {
    transform: translate(0, 0) scale(1);
  }
  50% {
    transform: translate(30px, -40px) scale(1.1);
  }
}

@keyframes beam {
  0% {
    transform: translateY(-40vh);
    opacity: 0;
  }
  20% {
    opacity: 1;
  }
  80% {
    opacity: 1;
  }
  100% {
    transform: translateY(140vh);
    opacity: 0;
  }
}

@keyframes float {
  0%,
  100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-10px);
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation: none !important;
    transition-duration: 0.01ms !important;
  }
  .reveal {
    opacity: 1;
    transform: none;
  }
}