html[data-theme="light"] {
  --bg: #f9fafb;
  --text: #020617;
  --muted: #475569;
  --accent: #6366f1;
  --accent-2: #22d3ee;
  --card: rgba(255, 255, 255, 0.85);
}

html[data-theme="dark"] {
  --bg: #020617;
  --text: #e5e7eb;
  --muted: #94a3b8;
  --accent: #818cf8;
  --accent-2: #22d3ee;
  --card: rgba(15, 23, 42, 0.85);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Inter", sans-serif;
  background: radial-gradient(circle at top, var(--accent-2), transparent 40%), var(--bg);
  color: var(--text);
}

/* =====================
   NAVBAR
===================== */
.navbar {
  display: flex;
  align-items: center;
  padding: 1.2rem 2rem 0.8rem;
}

.logo img {
  height: 96px;
  width: auto;
  object-fit: contain;
}

/* =====================
   HERO
===================== */
.hero {
  display: grid;
  grid-template-columns: minmax(450px, 1fr) 1.8fr; /* visual dominates */
  align-items: center;
  padding: 3.5rem 2rem 4rem;
  max-width: 1200px;
  margin: auto;
}

.hero-content {
  padding-right: 1.5rem;
}

.eyebrow {
  font-size: 0.75rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  opacity: 0.8;
}

.hero h1 {
  font-size: 3.6rem;
  margin: 0.8rem 0;
}

h1 span {
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero p {
  color: var(--muted);
  font-size: 1.1rem;
  line-height: 1.6;
  max-width: none; /* allow natural wrapping */
}

/* Hero CTA buttons */
.hero-actions {
  display: inline-flex;
  align-items: center;
  gap: 1rem;
  white-space: nowrap;
}

/* =====================
   HERO VISUAL
===================== */
.hero-visual {
  display: flex;
  justify-content: center;
  align-items: center;
  overflow: visible;
}

.hero-visual img {
  width: 105%;
  max-width: 1400px;
  height: auto;
  display: block;

  margin-left: -10%;
  margin-top: -8px;

  opacity: 0.94;
  pointer-events: none;

  /* Safer default */
  mix-blend-mode: normal;

  filter: drop-shadow(0 0 90px rgba(34, 211, 238, 0.25));
}


/* =====================
   BUTTONS
===================== */
.btn {
  padding: 0.8rem 1.4rem;
  border-radius: 999px;
  font-weight: 600;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
}

.primary {
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  color: #fff;
}

.glass {
  background: var(--card);
  backdrop-filter: blur(14px);
  color: var(--text);
}

/* =====================
   FEATURES
===================== */
.features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.5rem;
  max-width: 1100px;
  margin: 3rem auto;
  padding: 0 2rem;
}

.feature-card {
  background: var(--card);
  padding: 2rem;
  border-radius: 28px;
  transition: transform 0.3s, box-shadow 0.3s;
}

.feature-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.25);
}

.feature-card.accent {
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #fff;
}

/* =====================
   SECTIONS
===================== */
.section {
  max-width: 1000px;
  margin: 5rem auto;
  padding: 0 2rem;
}

.highlight {
  background: var(--card);
  border-radius: 36px;
  padding: 3rem;
}

.info-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 2rem;
}

.tag {
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
}

.info p {
  font-size: 1.05rem;
  line-height: 1.7;
}

/* =====================
   PUBLICATION
===================== */
.publication {
  display: flex;
  align-items: flex-start;
  gap: 2.5rem;
  background: var(--card);
  padding: 3rem;
  border-radius: 36px;
}

.publication img {
  height: 200px;
  width: auto;
  flex-shrink: 0;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  color: #fff;
  padding: 0.4rem 0.9rem;
  border-radius: 999px;
  font-size: 0.75rem;
}

.badge a {
  color: #fff;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
}

.badge a:hover,
.badge a:focus {
  box-shadow: none !important;
}

/* =====================
   CTA & FOOTER
===================== */
.cta {
  text-align: center;
  padding: 5rem 2rem;
}

footer {
  text-align: center;
  padding: 2rem;
  opacity: 0.6;
}

/* =====================
   LINKS (NO UNDERLINES)
===================== */
a {
  color: var(--accent);
  text-decoration: none;
  font-weight: 500;
  transition: color 0.2s ease, box-shadow 0.2s ease;
}

a:hover,
a:focus {
  color: var(--accent-2);
  box-shadow: inset 0 -2px 0 var(--accent-2);
}

a:focus {
  outline: none;
}

/* =====================
   UTILITIES
===================== */
.nowrap {
  white-space: nowrap;
}

/* =====================
   RESPONSIVE
===================== */
@media (max-width: 900px) {
  .hero {
    grid-template-columns: 1fr;
    text-align: center;
    padding: 2.5rem 1.5rem 3rem;
  }

  .hero-content {
    padding-right: 0;
  }

  .hero-actions {
    justify-content: center;
    white-space: normal;
  }

  .hero-visual img {
    width: 100%;
    max-width: 560px;
    margin: 2rem auto 0;
  }

  .publication {
    flex-direction: column;
    align-items: center;
    text-align: center;
  }
}