:root {
  color-scheme: dark;
  font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
  line-height: 1.5;
  --bg: #0f1115;
  --bg-elevated: #161a20;
  --text: #d8e6ff;
  --text-muted: #aec6f7;
  --border: #1e2533;
  --accent: #5fb4ff;
  --header-bg: rgba(15, 17, 21, 0.9);
  --button-bg: var(--text);
  --button-text: #0f1115;
  --glow: 0 0 6px rgba(95, 180, 255, 0.5),
    0 0 14px rgba(95, 180, 255, 0.25);
  --glow-outline: 0 0 0 1px rgba(95, 180, 255, 0.6);
  --bg-gradient-1: rgba(95, 180, 255, 0.08);
  --bg-gradient-2: rgba(138, 166, 217, 0.06);
  --star-bright: rgba(255, 255, 255, 0.55);
  --star-accent: rgba(95, 180, 255, 0.35);
}

:root[data-theme="light"] {
  color-scheme: light;
  --bg: #f7f1ea;
  --bg-elevated: #ffffff;
  --text: #1b1a18;
  --text-muted: #6b5f54;
  --border: #d7cbbf;
  --accent: #ff7a4a;
  --header-bg: rgba(247, 241, 234, 0.9);
  --button-bg: #1b1a18;
  --button-text: #f7f1ea;
  --glow: 0 0 6px rgba(255, 122, 74, 0.35),
    0 0 16px rgba(255, 122, 74, 0.2);
  --glow-outline: 0 0 0 1px rgba(255, 122, 74, 0.35);
  --bg-gradient-1: rgba(255, 167, 117, 0.18);
  --bg-gradient-2: rgba(255, 214, 170, 0.18);
  --star-bright: rgba(27, 26, 24, 0.18);
  --star-accent: rgba(255, 122, 74, 0.18);
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html,
body {
  background: radial-gradient(circle at 10% 20%, var(--bg-gradient-1), transparent 35%),
    radial-gradient(circle at 80% 10%, var(--bg-gradient-2), transparent 40%),
    var(--bg);
  color: var(--text);
  position: relative;
  scrollbar-width: none !important;
}

html::-webkit-scrollbar,
body::-webkit-scrollbar {
  width: 0;
  height: 0;
}

.scroll-indicator {
  position: fixed;
  right: 16px;
  top: 96px;
  bottom: 96px;
  width: 6px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid var(--border);
  z-index: 9;
  overflow: hidden;
}

.scroll-thumb {
  position: absolute;
  left: 0;
  width: 100%;
  height: 12%;
  border-radius: 999px;
  background: linear-gradient(180deg, var(--accent), rgba(95, 180, 255, 0.3));
  box-shadow: var(--glow);
  transform: translateY(0);
  transition: transform 120ms ease;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  background-image: radial-gradient(1px 1px at 8% 12%, var(--star-bright) 1px, transparent 1px);
  opacity: 0.6;
  pointer-events: none;
  z-index: -1;
  animation: star-twinkle 6s ease-in-out infinite;
}

body::after {
  content: "";
  position: fixed;
  inset: 0;
  background-image: radial-gradient(1px 1px at 14% 34%, var(--star-accent) 1px, transparent 1px);
  opacity: 0.45;
  pointer-events: none;
  z-index: -1;
  animation: star-twinkle 7.5s ease-in-out infinite;
  animation-delay: 1.2s;
}

@keyframes star-twinkle {
  0%,
  100% {
    opacity: 0.35;
  }
  50% {
    opacity: 0.75;
  }
}

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

.container {
  margin: 0 auto;
  max-width: 960px;
  padding: 0 24px;
}

.site-header {
  position: sticky;
  top: 16px;
  background: color-mix(in srgb, var(--header-bg) 70%, transparent);
  border: 1px solid var(--border);
  border-radius: 999px;
  margin: 0 24px;
  box-shadow: 0 8px 24px rgba(5, 10, 20, 0.3);
  backdrop-filter: blur(10px);
  z-index: 10;
  transition: transform 420ms ease, opacity 420ms ease;
}

.site-header.is-hidden {
  transform: translateY(-100%);
  opacity: 0;
}

.site-header.is-transparent {
  background: color-mix(in srgb, var(--header-bg) 40%, transparent);
  border-color: color-mix(in srgb, var(--border) 70%, transparent);
  box-shadow: 0 6px 18px rgba(5, 10, 20, 0.18);
}

.site-header.is-at-top .brand,
.site-header.is-at-top .nav a,
.site-header.is-at-top .nav-toggle {
  opacity: 0;
  transform: translateY(-6px);
  animation: header-stagger 420ms ease forwards;
  animation-delay: var(--stagger, 0ms);
}

@keyframes header-stagger {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  height: 64px;
  position: relative;
  max-width: 100%;
}

.brand {
  border: none;
  background: transparent;
  cursor: pointer;
  padding: 0;
  line-height: 1;
  display: inline-flex;
  align-items: center;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-size: 1.05rem;
  background: linear-gradient(120deg, #b6e0ff 0%, #5fb4ff 45%, #d0b7ff 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  -webkit-text-fill-color: transparent;
  text-shadow: 0 0 8px rgba(95, 180, 255, 0.5),
    0 0 18px rgba(95, 180, 255, 0.25);
  transition: transform 200ms ease, text-shadow 200ms ease;
}

:root[data-theme="light"] .brand {
  background: linear-gradient(120deg, #040505 0%, #122230 45%, #25212e 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  text-shadow: 0 0 8px rgba(255, 191, 95, 0.3),
    0 0 18px rgba(255, 95, 95, 0.25);
}

.brand:hover,
.brand:focus-visible {
  transform: translateY(-1px);
  text-shadow: 0 0 10px rgba(95, 180, 255, 0.7),
    0 0 28px rgba(95, 180, 255, 0.35);
}

.nav {
  display: flex;
  gap: 18px;
  font-size: 0.95rem;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

.theme-toggle {
  position: relative;
  width: 52px;
  height: 28px;
  border: 1px solid var(--border);
  background: var(--bg-elevated);
  color: var(--accent);
  padding: 0;
  border-radius: 999px;
  cursor: pointer;
  transition: box-shadow 200ms ease, transform 200ms ease, border-color 200ms ease;
}

.theme-toggle:hover,
.theme-toggle:focus-visible {
  box-shadow: var(--glow), var(--glow-outline);
  border-color: var(--accent);
  transform: translateY(-1px);
}

.theme-icon {
  position: absolute;
  top: 6px;
  width: 16px;
  height: 16px;
  opacity: 0.7;
  transition: opacity 200ms ease;
}

.theme-icon svg {
  width: 100%;
  height: 100%;
}

.theme-sun {
  left: 6px;
}

.theme-moon {
  right: 6px;
}

.theme-thumb {
  position: absolute;
  top: 4px;
  left: 4px;
  width: 20px;
  height: 20px;
  border-radius: 999px;
  background: var(--text);
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.3);
  transition: transform 200ms ease, background 200ms ease;
}

:root[data-theme="light"] .theme-thumb {
  transform: translateX(22px);
}

:root[data-theme="light"] .theme-sun {
  opacity: 1;
}

:root[data-theme="light"] .theme-moon {
  opacity: 0.4;
}

:root[data-theme="dark"] .theme-sun {
  opacity: 0.4;
}

:root[data-theme="dark"] .theme-moon {
  opacity: 1;
}

.nav a {
  padding: 6px 10px;
  border-radius: 999px;
  transition: color 200ms ease, transform 200ms ease, background 200ms ease;
}

.nav a:hover,
.nav a:focus-visible {
  color: var(--accent);
  background: rgba(95, 180, 255, 0.04);
  transform: translateY(-1px);
}

.nav-toggle {
  display: none;
}

.hero {
  padding: 96px 0 72px;
}

.about-grid {
  display: grid;
  gap: 32px;
  align-items: center;
  grid-template-columns: minmax(0, 1.1fr) minmax(220px, 0.9fr);
}

.hero h1 {
  font-size: clamp(2.5rem, 5vw, 3.5rem);
  margin: 12px 0 16px;
}

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.2em;
  font-size: 0.75rem;
  color: var(--text-muted);
}

.lede {
  margin-bottom: 24px;
}

.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.button {
  background: var(--button-bg);
  color: var(--button-text);
  padding: 10px 18px;
  border-radius: 999px;
  font-weight: 600;
  transition: box-shadow 200ms ease, transform 200ms ease;
}

.button:hover,
.button:focus-visible {
  box-shadow: var(--glow), var(--glow-outline);
  transform: translateY(-1px);
}

.button.ghost {
  background: transparent;
  border: 1px solid var(--text);
  color: var(--text);
}

.button.ghost:hover,
.button.ghost:focus-visible {
  box-shadow: var(--glow), var(--glow-outline);
}

.section {
  padding: 64px 0;
  border-top: 1px solid var(--border);
}

.section h2 {
  font-size: 2rem;
  margin-bottom: 16px;
}

.pill-list {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  list-style: none;
}

.pill-list li {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 14px;
  border: 1px solid var(--border);
  border-radius: 999px;
  font-size: 0.95rem;
  transition: box-shadow 200ms ease, transform 200ms ease, border-color 200ms ease;
  cursor: default;
}

.pill-icon {
  width: 32px;
  height: 32px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
}

.pill-icon i {
  font-size: 28px;
  line-height: 1;
}

.pill-list li:hover,
.pill-list li:focus-visible {
  box-shadow: var(--glow), var(--glow-outline);
  border-color: var(--accent);
  transform: translateY(-1px);
}

.card-grid {
  display: grid;
  gap: 20px;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.card {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 20px;
  min-height: 180px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  transition: box-shadow 200ms ease, transform 200ms ease, border-color 200ms ease;
  cursor: pointer;
}

.card a {
  font-weight: 600;
  color: var(--accent);
}

.card:hover,
.card:focus-within {
  box-shadow: var(--glow), var(--glow-outline);
  border-color: var(--accent);
  transform: translateY(-2px);
}

.timeline {
  display: grid;
  gap: 18px;
}

.timeline-item {
  padding: 16px;
  border-left: 2px solid var(--accent);
  background: var(--bg-elevated);
  border-radius: 12px;
  border: 1px solid var(--border);
  border-left-width: 2px;
  transition: box-shadow 200ms ease, transform 200ms ease, border-color 200ms ease;
}

.timeline-item:hover,
.timeline-item:focus-within {
  box-shadow: var(--glow), var(--glow-outline);
  border-color: var(--accent);
  transform: translateY(-2px);
  cursor: default;
}

.meta {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-bottom: 6px;
}

.site-footer {
  border-top: 1px solid var(--border);
  padding: 24px 0 40px;
  text-align: center;
  font-size: 0.9rem;
}

.contact-icons {
  display: flex;
  gap: 16px;
  margin-top: 16px;
}

.icon-button {
  width: 48px;
  height: 48px;
  border-radius: 16px;
  border: 1px solid var(--border);
  background: var(--bg-elevated);
  color: var(--text);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: transform 200ms ease, box-shadow 200ms ease, border-color 200ms ease;
}

.icon-button svg {
  width: 22px;
  height: 22px;
}

.icon-button:hover,
.icon-button:focus-visible {
  transform: translateY(-2px);
  box-shadow: var(--glow), var(--glow-outline);
  border-color: var(--accent);
  color: var(--accent);
}

.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 600ms ease, transform 600ms ease;
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.stagger > * {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 500ms ease, transform 500ms ease;
  transition-delay: calc(var(--stagger, 0) * 120ms);
}

.stagger.is-visible > * {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 720px) {
  .scroll-indicator {
    display: none;
  }
  .hero-photo-card {
    max-width: 100%;
  }

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

  .about-grid .hero-photo-card {
    justify-self: start;
    max-width: 100%;
  }
  .nav {
    display: none;
    position: absolute;
    right: 24px;
    top: 64px;
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 12px;
    flex-direction: column;
    gap: 12px;
  }

  .nav.is-open {
    display: flex;
  }

  .nav-toggle {
    display: inline-flex;
    border: 1px solid var(--text);
    background: transparent;
    padding: 6px 12px;
    border-radius: 999px;
    font-size: 0.85rem;
    color: var(--text);
  }
}