/* === GLOBAL RESET & BASE STYLES === */

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: 'Inter', system-ui, sans-serif;
  font-weight: 400;
  line-height: 1.6;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  transition: background-color 0.3s ease, color 0.3s ease;
  overflow-x: hidden;
}

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

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

ul {
  list-style: none;
}

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

/* === TYPOGRAPHY === */

h1, h2, h3, h4 {
  font-family: 'Orbitron', sans-serif;
  line-height: 1.2;
  font-weight: 700;
}

h3 {
  font-weight: 600;
}

/* === LAYOUT === */

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.section {
  padding: 100px 0;
}

/* === SHARED COMPONENTS === */

.section-tag {
  display: inline-block;
  font-family: 'Orbitron', sans-serif;
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--accent);
  border: 1px solid var(--accent);
  padding: 6px 16px;
  border-radius: 2px;
  margin-bottom: 24px;
}

.section-heading {
  font-size: clamp(2rem, 4vw, 3rem);
  margin-bottom: 56px;
  color: var(--text-primary);
}

.accent-text {
  background: linear-gradient(135deg, var(--accent) 0%, #FF6B35 50%, var(--secondary) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* === BUTTONS === */

.btn-primary {
  display: inline-block;
  font-family: 'Orbitron', sans-serif;
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: #fff;
  background: var(--accent);
  padding: 14px 32px;
  border-radius: 3px;
  border: 2px solid var(--accent);
  cursor: pointer;
  transition: background 0.25s ease, box-shadow 0.25s ease, transform 0.2s ease;
  position: relative;
  overflow: hidden;
}

.btn-primary:hover {
  background: transparent;
  color: var(--accent);
  box-shadow: 0 0 24px rgba(255, 69, 0, 0.5), 0 0 48px rgba(255, 69, 0, 0.2);
  transform: translateY(-2px);
}

.btn-ghost {
  display: inline-block;
  font-family: 'Orbitron', sans-serif;
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-secondary);
  background: transparent;
  padding: 14px 32px;
  border-radius: 3px;
  border: 1px solid var(--border);
  transition: border-color 0.25s ease, color 0.25s ease, transform 0.2s ease;
}

.btn-ghost:hover {
  border-color: var(--accent);
  color: var(--accent);
  transform: translateY(-2px);
}

/* === ANIMATION CLASSES === */

.animate-on-scroll {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.animate-on-scroll.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Stagger delay for siblings */
.animate-on-scroll:nth-child(1) { transition-delay: 0s; }
.animate-on-scroll:nth-child(2) { transition-delay: 0.1s; }
.animate-on-scroll:nth-child(3) { transition-delay: 0.2s; }
.animate-on-scroll:nth-child(4) { transition-delay: 0.3s; }

/* === SCROLLBAR === */

::-webkit-scrollbar {
  width: 6px;
}
::-webkit-scrollbar-track {
  background: var(--bg-secondary);
}
::-webkit-scrollbar-thumb {
  background: var(--accent);
  border-radius: 3px;
}

/* === SELECTION === */

::selection {
  background: var(--accent);
  color: #fff;
}

/* === RESPONSIVE === */

@media (max-width: 768px) {
  .section {
    padding: 72px 0;
  }
  .container {
    padding: 0 16px;
  }
}