html {
  scroll-behavior: smooth;
}

/* ============================= */
/*          THEME COLORS         */
/* ============================= */
:root {
  --bg: #0b1020;
  --panel: #0f172a;
  --card: #0f172a;
  --pill-bg: #0b1220;
  --tag-bg: #0b1220;
  --text: #e2e8f0;
  --subtext: #94a3b8;
  --border: #1f2937;
  --link: #67e8f9;
  --accent1: #06b6d4;
  --accent2: #7c3aed;
  --accent3: #22c55e;
  --ring: rgba(124,58,237,.35);
}

html.light-mode {
  --bg: #f9fafb;
  --panel: #ffffff;
  --card: #ffffff;
  --pill-bg: #f3f4f6;
  --tag-bg: #eef2ff;
  --text: #1f2937;
  --subtext: #4b5563;
  --border: #e5e7eb;
  --link: #2563eb;
}
/* ============================= */
/*            GLOBAL             */
/* ============================= */
* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: Inter, system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.65;
  transition: background 0.3s, color 0.3s;
}

a {
  color: var(--link);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

.container {
  max-width: 900px;
  margin: 0 auto;
  padding: 0 20px;
}

/* ============================= */
/*           HEADER              */
/* ============================= */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(10px);
  background: var(--panel);
  border-bottom: 1px solid var(--border);
}

.navbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 14px 0;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  color: var(--text);
}

.brand:hover {
  text-decoration: none;
  opacity: 0.9;
}

.qubit {
  width: 18px;
  height: 18px;
  display: inline-grid;
  place-items: center;
  border-radius: 6px;
  background: linear-gradient(135deg, var(--accent2), var(--accent1));
  box-shadow: 0 0 18px rgba(124, 58, 237, 0.35);
}

.navlinks {
  display: flex;
  gap: 16px;
  align-items: center;
}

.navlinks a {
  position: relative;
  padding: 6px 4px;
  transition: color 0.2s;
  color: var(--text);
}

.navlinks a.active::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--accent2);
  border-radius: 1px;
}

.nav-actions {
  display: flex;
  gap: 8px;
  align-items: center;
}

.menu {
  display: none;
}

@media (max-width: 720px) {
  .navlinks {
    display: none;
    flex-direction: column;
    background: var(--panel);
    position: absolute;
    top: 64px;
    right: 20px;
    padding: 12px;
    border: 1px solid var(--border);
    border-radius: 12px;
  }

  .navlinks.active {
    display: flex;
  }

  .menu {
    display: inline-flex;
  }
}

/* ============================= */
/*            BUTTONS            */
/* ============================= */
.btn {
  border: 1px solid var(--border);
  background: var(--panel);
  border-radius: 12px;
  padding: 8px 12px;
  color: var(--text);
  cursor: pointer;
  transition: background 0.2s, color 0.2s;
}

.btn:hover {
  background: var(--accent2);
  color: #fff;
}

.btn:focus-visible {
  outline: 2px solid var(--accent2);
  box-shadow: 0 0 0 4px var(--ring);
}

.btn.small {
  font-size: 0.9rem;
  padding: 6px 10px;
}

/* ============================= */
/*             HERO              */
/* ============================= */
.hero-wrap {
  display: grid;
  grid-template-columns: 180px 1fr;
  gap: 24px;
  align-items: center;
}

.headshot {
  width: 180px;
  height: 180px;
  border-radius: 9999px;
  object-fit: cover;
  border: 3px solid var(--border);
  box-shadow: 0 0 28px var(--ring);
  transition: filter 0.3s;
}

html.light-mode .headshot {
  filter: brightness(1);
}

html:not(.light-mode) .headshot {
  filter: brightness(0.95);
}

@media (max-width: 560px) {
  .hero-wrap {
    grid-template-columns: 1fr;
  }
}

/* ============================= */
/*           SECTIONS            */
/* ============================= */
section {
  padding: 38px 0;
  border-top: 1px solid var(--border);
}

section:first-of-type {
  border-top: none;
}

h1 {
  font-size: clamp(32px, 6vw, 52px);
  line-height: 1.1;
}

h2 {
  font-size: clamp(20px, 3.6vw, 28px);
}

h3 {
  margin-bottom: 8px;
}

/* ============================= */
/*           CARDS               */
/* ============================= */
.card {
  border: 1px solid var(--border);
  background: var(--card);
  border-radius: 16px;
  padding: 18px;
  color: var(--text);
}

/* grid system */
.grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 18px;
}

.col-6 {
  grid-column: span 6;
}

.col-12 {
  grid-column: span 12;
}

@media (max-width: 900px) {
  .grid {
    grid-template-columns: repeat(6, 1fr);
  }

  .col-6 {
    grid-column: span 6;
  }
}
/* ============================= */
/*           MISC                */
/* ============================= */
.mono {
  font-family: "JetBrains Mono", monospace;
}

.muted {
  color: var(--subtext);
}

/* ============================= */
/*         PILL & TAGS           */
/* ============================= */
.pill,
.tag {
  border: 1px solid var(--border);
  border-radius: 9999px;
  color: var(--text);
  background: var(--pill-bg);
  padding: 6px 10px;
}

/* Pill: for the hero section label */
.pill {
  display: inline-flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 6px;
  white-space: normal;
  max-width: 100%;
  line-height: 1.4;
  text-align: center;
}

/* Tag container (auto wraps) */
.tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
}

/* Individual tag */
.tag {
  font-size: 12px;
  background: var(--tag-bg);
  transition: background 0.2s, color 0.2s;
}

.tag:hover {
  background: var(--accent2);
  color: #fff;
  text-decoration: underline;
}

/* ============================= */
/*      RESEARCH / NEWS LISTS    */
/* ============================= */
.news {
  list-style: none;
  padding-left: 0;
  margin: 0;
}

/* Each list item: dot + paragraph-style text */
.news li {
  display: flex;
  align-items: baseline; /* aligns dot with first text line */
  gap: 10px;
  margin-bottom: 10px;
  color: var(--text);
  line-height: 1.65;
}

/* Dot styling */
.dot {
  flex-shrink: 0;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: linear-gradient(180deg, var(--accent1), var(--accent2));
  margin-top: 5px;
  box-shadow: 0 0 8px rgba(124, 58, 237, 0.4);
  opacity: 0.95;
  transition: opacity 0.3s ease;
}

/* Pulse animation when visible */
.fade-in.visible .dot {
  animation: dotPulse 1.2s ease-out both;
}

/* Natural inline wrapping for all text and links */
.news li span,
.news li a,
.news li {
  white-space: normal;
  word-break: normal;
}

/* Inline link styling (appears like part of the sentence) */
.news li a {
  display: inline;
  color: var(--link);
  font-weight: 500;
  text-decoration: none;
  transition: all 0.2s ease;
}

.news li a:hover {
  text-decoration: underline;
}

/* Pulse animation definition */
@keyframes dotPulse {
  0% {
    transform: scale(1);
    box-shadow: 0 0 8px rgba(124, 58, 237, 0.4);
  }
  40% {
    transform: scale(1.4);
    box-shadow: 0 0 18px rgba(6, 182, 212, 0.7);
  }
  70% {
    transform: scale(1.1);
    box-shadow: 0 0 12px rgba(124, 58, 237, 0.5);
  }
  100% {
    transform: scale(1);
    box-shadow: 0 0 8px rgba(124, 58, 237, 0.4);
  }
}

/* ============================= */
/*       RECENT NEWS CARDS       */
/* ============================= */
.news li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin-bottom: 16px;
  color: var(--text);
  line-height: 1.65;
}

/* container inside each bullet */
.news-content {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

/* Link headline */
.news-title {
  font-weight: 600;
  color: var(--link);
  text-decoration: none;
  font-size: 0.98rem;
  transition: all 0.25s ease;
}

/* subtle gradient hover */
.news-title:hover {
  background: linear-gradient(90deg, var(--accent1), var(--accent2));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* Description under link */
.news-desc {
  margin: 0;
  color: var(--subtext);
  font-size: 0.92rem;
  line-height: 1.5;
}

/* Dot alignment */
.dot {
  flex-shrink: 0;
  width: 8px;
  height: 8px;
  margin-top: 6px;
  border-radius: 50%;
  background: linear-gradient(180deg, var(--accent1), var(--accent2));
  box-shadow: 0 0 8px rgba(124, 58, 237, 0.4);
  opacity: 0.95;
}

/* Pulse animation (already defined earlier) */
.fade-in.visible .dot {
  animation: dotPulse 1.2s ease-out both;
}


/* Responsive adjustments */
@media (max-width: 560px) {
  .pill {
    font-size: 0.9rem;
    padding: 5px 8px;
  }

  .tag {
    font-size: 11px;
    padding: 5px 8px;
  }
}

/* ============================= */
/*           VIDEO               */
/* ============================= */
video {
  border-radius: 12px;
  border: 1px solid var(--border);
  box-shadow: 0 0 18px rgba(124, 58, 237, 0.25);
  background: #000;
}

video::-webkit-media-controls-panel {
  background-color: rgba(15, 23, 42, 0.75);
  border-radius: 0 0 12px 12px;
}

@media (max-width: 560px) {
  video {
    width: 100%;
    height: auto;
  }
}

/* GIF as video element with fade-in */
.gif-video {
  border-radius: 12px;
  border: 1px solid var(--border);
  box-shadow: 0 0 18px rgba(124, 58, 237, 0.25);
  object-fit: cover;
  background: #000;
  transition: opacity 0.8s ease;
}

.gif-video.fade-in {
  opacity: 0;
}

.fade-in.visible .gif-video {
  opacity: 1;
}


/* ============================= */
/*           FOOTER              */
/* ============================= */
.site-footer {
  padding: 32px 0;
  border-top: 1px solid var(--border);
  color: var(--subtext);
  display: flex;
  justify-content: center;
  background: var(--panel);
}

/* ============================= */
/*        ANIMATIONS             */
/* ============================= */
.fade-in {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}