/* ==========================================================================
   AUTOVANTA BASE STYLES, TYPOGRAPHY & ANIMATIONS
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@300;400;500;600;700;800&family=Syne:wght@600;700;800&display=swap');

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  font-family: var(--font-body);
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

body {
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

main {
  flex: 1;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
  width: 8px;
}
::-webkit-scrollbar-track {
  background: #f0f2f8;
}
::-webkit-scrollbar-thumb {
  background: #cbd2e1;
  border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
  background: var(--accent-red);
}

/* Container */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 24px;
}

.container-fluid {
  width: 100%;
  padding: 0 24px;
}

/* Typography Elements */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  color: var(--text-primary);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
}

h1 { font-size: clamp(2.5rem, 5vw, 4.5rem); }
h2 { font-size: clamp(2rem, 3.5vw, 3.2rem); }
h3 { font-size: clamp(1.4rem, 2.2vw, 2rem); }
h4 { font-size: 1.25rem; }

p {
  color: var(--text-secondary);
  font-size: 1.05rem;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition-fast);
}

img, video {
  max-width: 100%;
  height: auto;
  display: block;
}

/* Section Common Structure */
.section {
  padding: var(--section-padding);
  position: relative;
}

.section-header {
  margin-bottom: 48px;
}

.section-header.text-center {
  text-align: center;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.82rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--accent-red);
  background: var(--accent-red-subtle);
  border: 1px solid rgba(229, 9, 20, 0.2);
  padding: 6px 14px;
  border-radius: var(--radius-full);
  margin-bottom: 16px;
}

.section-tag i {
  font-size: 0.75rem;
}

.section-title {
  font-size: clamp(2rem, 3.5vw, 3rem);
  margin-bottom: 16px;
  color: var(--text-primary);
}

.section-title span.highlight {
  background: var(--grad-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.section-subtitle {
  color: var(--text-secondary);
  font-size: 1.1rem;
  max-width: 680px;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 14px 28px;
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition-normal);
  border: 1px solid transparent;
  text-align: center;
  white-space: nowrap;
  position: relative;
  overflow: hidden;
}

.btn-primary {
  background: var(--grad-primary);
  color: #ffffff;
  box-shadow: 0 4px 18px var(--accent-red-glow);
}

.btn-primary:hover {
  background: linear-gradient(135deg, #ff1f2d 0%, #c40712 100%);
  box-shadow: 0 6px 24px rgba(229, 9, 20, 0.45);
  transform: translateY(-2px);
  color: #fff;
}

.btn-outline {
  background: #ffffff;
  border: 1px solid var(--border-light);
  color: var(--text-primary);
  box-shadow: 0 2px 8px rgba(16, 19, 30, 0.04);
}

.btn-outline:hover {
  background: var(--bg-tertiary);
  border-color: var(--text-primary);
  transform: translateY(-2px);
}

.btn-glass {
  background: var(--bg-glass);
  border: 1px solid var(--border-subtle);
  color: var(--text-primary);
  backdrop-filter: blur(12px);
}

.btn-glass:hover {
  border-color: var(--accent-red);
  color: var(--accent-red);
  background: rgba(229, 9, 20, 0.08);
}

.btn-sm {
  padding: 8px 16px;
  font-size: 0.85rem;
}

.btn-md {
  padding: 10px 22px;
  font-size: 0.88rem;
}

.btn-lg {
  padding: 16px 36px;
  font-size: 1.05rem;
}

.btn-block {
  width: 100%;
}

/* Badge Tags */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 4px 10px;
  border-radius: var(--radius-xs);
}

.badge-red {
  background: var(--accent-red);
  color: #ffffff;
}

.badge-gold {
  background: var(--accent-gold);
  color: #08080a;
}

.badge-dark {
  background: rgba(8, 8, 10, 0.85);
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  backdrop-filter: blur(8px);
}

/* Grid Layouts */
.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}

.grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

/* Utility Classes */
.text-center { text-align: center; }
.text-right { text-align: right; }
.text-accent { color: var(--accent-red); }
.text-gold { color: var(--accent-gold); }
.text-muted { color: var(--text-muted); }

.flex-between {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.flex-center {
  display: flex;
  align-items: center;
  justify-content: center;
}

/* Global Animations */
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(16px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes pulseRed {
  0%, 100% { box-shadow: 0 0 0 0 rgba(229, 9, 20, 0.4); }
  50% { box-shadow: 0 0 0 12px rgba(229, 9, 20, 0); }
}

@keyframes floatAnim {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}

/* Scroll-to-Top Button */
.scroll-top-btn {
  position: fixed;
  bottom: 30px;
  right: 30px;
  width: 48px;
  height: 48px;
  border-radius: var(--radius-full);
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  color: var(--text-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-normal);
  z-index: 900;
  backdrop-filter: blur(12px);
}

.scroll-top-btn.visible {
  opacity: 1;
  visibility: visible;
}

.scroll-top-btn:hover {
  background: var(--accent-red);
  border-color: var(--accent-red);
  color: #fff;
  transform: translateY(-4px);
  box-shadow: 0 6px 20px var(--accent-red-glow);
}