:root {
  --primary: #D52B1E;
  --secondary: #1A1A1A;
  --bg-color: #ffffff;
  --text-color: #171717;
  --text-muted: #575757;
  --border-color: rgba(26, 26, 26, 0.1);
  --glass-bg: rgba(255, 255, 255, 0.7);
  --glass-border: rgba(26, 26, 26, 0.08);
  --font-sans: "Helvetica Now Display", "Inter", "Helvetica Neue", Helvetica, Arial, sans-serif;
  --font-serif: "Charter", "Bitstream Charter", "Sitka Text", "Cambria", serif;
  --transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
  --grid-gap: 24px;
}

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

body {
  background-color: var(--bg-color);
  color: var(--text-color);
  font-family: var(--font-serif);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

/* Typography */
h1, h2, h3, h4, .nav-link, .button {
  font-family: var(--font-sans);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: -0.02em;
  line-height: 1.1;
}

h1 { font-size: clamp(2.5rem, 8vw, 5rem); margin-bottom: 2rem; }
h2 { font-size: 2rem; margin-bottom: 1.5rem; }
p { font-size: 1.125rem; margin-bottom: 1.5rem; max-width: 65ch; }

/* Layout Structure */
.container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 40px;
}

header {
  height: 80px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--border-color);
  position: sticky;
  top: 0;
  background: var(--glass-bg);
  backdrop-filter: blur(12px);
  z-index: 1000;
}

/* Bento Grid */
.bento-grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  grid-auto-rows: minmax(200px, auto);
  gap: var(--grid-gap);
  padding: 40px 0;
}

.card {
  grid-column: span 4;
  background: var(--bg-color);
  border: 1px solid var(--border-color);
  padding: 32px;
  position: relative;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.card-glass {
  background: var(--glass-bg);
  backdrop-filter: blur(8px);
  border: 1px solid var(--glass-border);
}

.card:hover {
  border-color: var(--primary);
}

.card.large { grid-column: span 8; }
.card.tall { grid-row: span 2; }

/* Interactive Elements */
a {
  color: inherit;
  text-decoration: none;
  transition: var(--transition);
}

.nav-link:hover, a:hover {
  color: var(--primary);
}

.btn {
  display: inline-flex;
  align-items: center;
  padding: 12px 28px;
  background-color: var(--secondary);
  color: var(--bg-color);
  font-size: 0.875rem;
  border: none;
  cursor: pointer;
  transition: var(--transition);
}

.btn-primary {
  background-color: var(--primary);
}

.btn:hover {
  filter: brightness(1.2);
  transform: translateY(-1px);
}

/* UI Components */
.tag {
  font-family: var(--font-sans);
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--primary);
  text-transform: uppercase;
  margin-bottom: 1rem;
  display: block;
}

.separator {
  width: 40px;
  height: 2px;
  background-color: var(--primary);
  margin: 20px 0;
}

/* Precise Borders & Accents */
.border-top { border-top: 1px solid var(--border-color); }
.border-right { border-right: 1px solid var(--border-color); }

/* Responsive adjustments */
@media (max-width: 1024px) {
  .card, .card.large {
    grid-column: span 6;
  }
}

@media (max-width: 768px) {
  .container { padding: 0 20px; }
  .bento-grid { grid-template-columns: 1fr; }
  .card, .card.large { grid-column: span 1; }
  h1 { font-size: 3rem; }
}

/* Iconography style */
.icon {
  width: 24px;
  height: 24px;
  stroke: var(--secondary);
  stroke-width: 1.5px;
  fill: none;
}