@import url('https://fonts.googleapis.com/css2?family=Playfair+Display:ital,wght@0,400;0,600;0,700;1,400&family=Space+Grotesk:wght@300;400;500;600;700&family=Inter:wght@300;400;500;600&family=JetBrains+Mono:wght@400;500&display=swap');

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  background-color: var(--color-bg-primary);
  color: var(--color-text-primary);
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.7;
  font-weight: 400;
  min-height: 100vh;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

::selection {
  background: var(--color-rust);
  color: var(--color-text-primary);
}

::-webkit-scrollbar {
  width: 6px;
}
::-webkit-scrollbar-track {
  background: var(--color-bg-primary);
}
::-webkit-scrollbar-thumb {
  background: var(--color-rust-dim);
  border-radius: var(--radius-full);
}
::-webkit-scrollbar-thumb:hover {
  background: var(--color-rust);
}

a {
  color: var(--color-rust-light);
  text-decoration: none;
  transition: color var(--transition-fast);
}
a:hover {
  color: var(--color-amber);
}

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

ul, ol {
  list-style: none;
}

button {
  cursor: pointer;
  border: none;
  background: none;
  font-family: inherit;
}

/* Utility Classes */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--space-xl);
}

.section {
  padding: var(--space-4xl) 0;
}

.section-label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 500;
  color: var(--color-rust);
  letter-spacing: 0.2em;
  text-transform: uppercase;
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  margin-bottom: var(--space-sm);
}
.section-label::after {
  content: '';
  display: block;
  width: 32px;
  height: 1px;
  background: var(--color-rust);
  opacity: 0.6;
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700;
  color: var(--color-text-primary);
  line-height: 1.15;
  margin-bottom: var(--space-md);
}

.section-subtitle {
  font-size: 1.05rem;
  color: var(--color-text-secondary);
  max-width: 560px;
  line-height: 1.75;
}

.tag {
  display: inline-flex;
  align-items: center;
  padding: 0.2rem 0.7rem;
  background: rgba(192, 68, 10, 0.1);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--color-rust-light);
  font-weight: 500;
  letter-spacing: 0.02em;
  transition: background var(--transition-fast), border-color var(--transition-fast);
}
.tag:hover {
  background: rgba(192, 68, 10, 0.2);
  border-color: var(--color-rust);
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: 0.65rem 1.4rem;
  border-radius: var(--radius-md);
  font-family: var(--font-heading);
  font-size: 0.9rem;
  font-weight: 600;
  letter-spacing: 0.01em;
  transition: all var(--transition-base);
  cursor: pointer;
}
.btn-primary {
  background: var(--color-rust);
  color: var(--color-text-primary);
  border: 1px solid var(--color-rust);
}
.btn-primary:hover {
  background: var(--color-rust-light);
  border-color: var(--color-rust-light);
  color: var(--color-text-primary);
  box-shadow: var(--shadow-rust);
  transform: translateY(-1px);
}
.btn-outline {
  background: transparent;
  color: var(--color-text-secondary);
  border: 1px solid var(--color-border-strong);
}
.btn-outline:hover {
  border-color: var(--color-rust);
  color: var(--color-rust-light);
  background: var(--color-rust-glow);
  transform: translateY(-1px);
}

.card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  box-shadow: var(--shadow-card);
  transition: all var(--transition-base);
}
.card:hover {
  background: var(--color-bg-card-hover);
  border-color: var(--color-border-strong);
  box-shadow: var(--shadow-card), var(--shadow-glow);
  transform: translateY(-2px);
}

.divider {
  height: 1px;
  background: var(--color-divider);
  border: none;
  margin: var(--space-2xl) 0;
}

.rust-line {
  display: inline-block;
  width: 3px;
  height: 100%;
  background: linear-gradient(to bottom, var(--color-rust), var(--color-amber));
  border-radius: var(--radius-full);
  flex-shrink: 0;
}

/* Fade-in animation */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(24px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}
@keyframes shimmer {
  0% { background-position: -200% center; }
  100% { background-position: 200% center; }
}

.animate-fade-up {
  animation: fadeInUp 0.6s ease both;
}
.animate-fade-up-delay-1 { animation-delay: 0.1s; }
.animate-fade-up-delay-2 { animation-delay: 0.2s; }
.animate-fade-up-delay-3 { animation-delay: 0.3s; }
.animate-fade-up-delay-4 { animation-delay: 0.4s; }

/* Grid pattern background */
.grid-bg {
  background-image:
    linear-gradient(rgba(192, 68, 10, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(192, 68, 10, 0.04) 1px, transparent 1px);
  background-size: 40px 40px;
}

@media (max-width: 768px) {
  .container {
    padding: 0 var(--space-lg);
  }
  .section {
    padding: var(--space-3xl) 0;
  }
}