/* CSS Reset & Variables */
:root {
  --bg-primary: #0a0b10;
  --bg-secondary: #12131c;
  --bg-card: #1c1d29;
  --text-primary: #cdd6f4;
  --text-secondary: #a6adc8;
  --accent: #ff6600;
  --accent-glow: rgba(255, 102, 0, 0.4);
  --accent-hover: #ff7d26;
  --border: #2d2e3f;
  --shadow: rgba(0, 0, 0, 0.5);
  --modal-bg: rgba(10, 11, 16, 0.95);
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Outfit', sans-serif;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
}

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 20px;
}

/* Typography Helpers */
h1, h2, h3, h4 {
  font-weight: 800;
  color: #fff;
  line-height: 1.2;
}

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

.orange-text {
  color: var(--accent);
  text-shadow: 0 0 10px var(--accent-glow);
}

.section-title {
  text-align: center;
  font-size: 32px;
  margin-bottom: 40px;
  position: relative;
}

.section-title::after {
  content: '';
  display: block;
  width: 60px;
  height: 4px;
  background-color: var(--accent);
  margin: 12px auto 0;
  border-radius: 2px;
  box-shadow: 0 0 8px var(--accent-glow);
}

/* Sections */
.section {
  padding: 80px 0;
}

.alt-bg {
  background-color: var(--bg-secondary);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

/* Grid Layouts */
.grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
}

@media (max-width: 768px) {
  .grid-2 {
    grid-template-columns: 1fr;
    gap: 30px;
  }
}

/* Navbar */
.navbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 40px;
  background-color: rgba(10, 11, 16, 0.85);
  backdrop-filter: blur(10px);
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  border-bottom: 1px solid var(--border);
}

.navbar .logo {
  font-size: 22px;
  font-weight: 800;
  letter-spacing: 1px;
}

.navbar nav {
  display: flex;
  align-items: center;
  gap: 25px;
  font-weight: 600;
}

.navbar nav a {
  font-size: 14px;
  transition: color 0.2s;
  color: var(--text-secondary);
}

.navbar nav a:hover {
  color: #fff;
}

.navbar nav .nav-download-btn {
  background-color: var(--accent);
  color: #fff;
  padding: 8px 16px;
  border-radius: 6px;
  transition: background 0.2s, transform 0.1s;
  box-shadow: 0 0 10px var(--accent-glow);
}

.navbar nav .nav-download-btn:hover {
  background-color: var(--accent-hover);
  transform: translateY(-1px);
}

/* Hero Section */
.hero-section {
  position: relative;
  height: 90vh;
  min-height: 550px;
  display: flex;
  align-items: center;
  justify-content: center;
  background-image: url('beamng_banner.png');
  background-size: cover;
  background-position: center;
  padding: 0 20px;
  border-bottom: 2px solid var(--accent);
}

.hero-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(0deg, var(--bg-primary) 5%, rgba(10, 11, 16, 0.6) 50%, rgba(10, 11, 16, 0.8) 100%);
  z-index: 1;
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 800px;
  text-align: center;
}

.hero-content h1 {
  font-size: 56px;
  margin-top: 10px;
  margin-bottom: 20px;
  letter-spacing: -1px;
  text-shadow: 0 4px 15px rgba(0,0,0,0.8);
}

.hero-content .tag {
  background-color: var(--accent);
  color: #fff;
  padding: 4px 12px;
  font-weight: 800;
  font-size: 12px;
  border-radius: 4px;
  text-transform: uppercase;
  letter-spacing: 1px;
  box-shadow: 0 0 10px var(--accent-glow);
}

.hero-subtitle {
  font-size: 18px;
  color: var(--text-secondary);
  margin-bottom: 35px;
  max-width: 650px;
  margin-left: auto;
  margin-right: auto;
  text-shadow: 0 2px 8px rgba(0,0,0,0.8);
}

/* Buttons */
.cta-btn {
  display: inline-block;
  padding: 14px 28px;
  border-radius: 8px;
  font-weight: bold;
  font-size: 15px;
  transition: background 0.2s, transform 0.2s, box-shadow 0.2s;
  cursor: pointer;
}

.primary-btn {
  background-color: var(--accent);
  color: #fff;
  box-shadow: 0 0 15px var(--accent-glow);
}

.primary-btn:hover {
  background-color: var(--accent-hover);
  box-shadow: 0 0 25px var(--accent-glow);
  transform: translateY(-2px);
}

.secondary-btn {
  background-color: rgba(255, 255, 255, 0.05);
  color: #fff;
  border: 1px solid var(--border);
  backdrop-filter: blur(5px);
}

.secondary-btn:hover {
  background-color: rgba(255, 255, 255, 0.1);
  transform: translateY(-2px);
}

.hero-actions {
  display: flex;
  gap: 15px;
  justify-content: center;
}

@media (max-width: 576px) {
  .hero-actions {
    flex-direction: column;
    align-items: stretch;
  }
  .hero-content h1 {
    font-size: 38px;
  }
}

/* Overview Section Highlight Card */
.overview-highlight-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 40px;
  text-align: center;
  box-shadow: 0 8px 30px var(--shadow);
}

.overview-highlight-card .card-stat {
  font-size: 48px;
  font-weight: 800;
  color: var(--accent);
  text-shadow: 0 0 15px var(--accent-glow);
}

.overview-highlight-card .card-label {
  font-size: 13px;
  text-transform: uppercase;
  color: var(--text-secondary);
  font-weight: 600;
  letter-spacing: 1px;
}

.overview-highlight-card .card-divider {
  height: 2px;
  background-color: var(--border);
  margin: 20px auto;
  width: 50%;
}

.overview-highlight-card .card-desc {
  font-size: 14px;
  color: var(--text-secondary);
}

/* Features Grid */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 30px;
}

.feature-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 30px;
  transition: transform 0.3s, border-color 0.3s;
}

.feature-card:hover {
  transform: translateY(-5px);
  border-color: var(--accent);
}

.feature-card .feature-icon {
  font-size: 36px;
  margin-bottom: 15px;
}

.feature-card h3 {
  font-size: 20px;
  margin-bottom: 10px;
}

.feature-card p {
  color: var(--text-secondary);
  font-size: 14px;
}

/* System Requirements */
.requirements-wrapper {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 30px;
  margin-top: 20px;
}

@media (max-width: 768px) {
  .requirements-wrapper {
    grid-template-columns: 1fr;
  }
}

.requirements-box {
  background-color: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 35px;
  position: relative;
  box-shadow: 0 8px 25px var(--shadow);
}

.requirements-box.recommended {
  border-color: var(--accent);
  box-shadow: 0 8px 30px rgba(255, 102, 0, 0.15);
}

.recommended-badge {
  position: absolute;
  top: -12px;
  right: 25px;
  background-color: var(--accent);
  color: #fff;
  font-size: 11px;
  font-weight: bold;
  text-transform: uppercase;
  padding: 3px 10px;
  border-radius: 10px;
  box-shadow: 0 0 10px var(--accent-glow);
}

.requirements-box h3 {
  font-size: 20px;
  margin-bottom: 20px;
  border-bottom: 1px solid var(--border);
  padding-bottom: 10px;
}

.requirements-box ul {
  list-style: none;
}

.requirements-box ul li {
  margin-bottom: 12px;
  font-size: 14px;
  display: flex;
  flex-direction: column;
}

.requirements-box ul li strong {
  color: #fff;
  font-size: 13px;
  color: var(--text-secondary);
}

/* Download Server List */
.download-container {
  max-width: 1000px;
}

.download-sub {
  text-align: center;
  color: var(--text-secondary);
  margin-top: -25px;
  margin-bottom: 40px;
}

.servers-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 15px;
  margin-bottom: 30px;
}

.server-btn {
  background-color: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 16px 25px;
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: space-between;
  cursor: pointer;
  transition: transform 0.2s, border-color 0.2s, box-shadow 0.2s;
  font-family: inherit;
}

.server-btn:hover {
  border-color: var(--accent);
  transform: scale(1.01);
  box-shadow: 0 4px 15px rgba(255, 102, 0, 0.1);
}

.flag-container {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.flag-img {
  border-radius: 2px;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.4);
  object-fit: cover;
  display: block;
}

.server-btn .name {
  font-weight: 600;
  font-size: 15px;
  flex-grow: 1;
  margin-left: 20px;
  text-align: left;
}

.server-btn .speed {
  background-color: rgba(166, 227, 161, 0.1);
  color: #a6e3a1;
  font-size: 12px;
  font-weight: bold;
  padding: 4px 10px;
  border-radius: 6px;
}

/* Download Notice Box */
.download-notice {
  background-color: rgba(249, 226, 175, 0.05);
  border-left: 4px solid #f9e2af;
  border-radius: 6px;
  padding: 20px;
  display: flex;
  gap: 15px;
  align-items: flex-start;
  margin-top: 30px;
}

.download-notice .notice-icon {
  font-size: 24px;
}

.download-notice .notice-text {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.5;
}

.download-notice .notice-text strong {
  color: #fff;
}

/* Interactive Modal */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0,0,0,0.85);
  backdrop-filter: blur(8px);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s;
}

.modal-overlay.active {
  opacity: 1;
  pointer-events: auto;
}

.modal-content {
  background-color: var(--bg-card);
  border: 1px solid var(--border);
  width: 90%;
  max-width: 500px;
  border-radius: 16px;
  padding: 30px;
  position: relative;
  box-shadow: 0 15px 50px rgba(0,0,0,0.8);
  transform: translateY(20px);
  transition: transform 0.3s;
}

.modal-overlay.active .modal-content {
  transform: translateY(0);
}

.modal-close {
  position: absolute;
  top: 15px;
  right: 20px;
  background: none;
  border: none;
  color: var(--text-secondary);
  font-size: 28px;
  cursor: pointer;
  transition: color 0.2s;
}

.modal-close:hover {
  color: #fff;
}

.modal-header h3 {
  font-size: 22px;
  margin-bottom: 15px;
  text-align: center;
  border-bottom: 1px solid var(--border);
  padding-bottom: 15px;
}

.modal-intro {
  font-size: 15px;
  color: var(--text-secondary);
  text-align: center;
  margin-bottom: 25px;
}

.modal-intro .highlight-text {
  color: var(--accent);
  font-weight: bold;
}

.steps-container {
  display: flex;
  flex-direction: column;
  gap: 20px;
  margin-bottom: 30px;
}

.step-item {
  display: flex;
  gap: 15px;
}

.step-num {
  background-color: var(--accent);
  color: #fff;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: bold;
  font-size: 14px;
  flex-shrink: 0;
  box-shadow: 0 0 8px var(--accent-glow);
}

.step-desc strong {
  display: block;
  font-size: 15px;
  color: #fff;
  margin-bottom: 4px;
}

.step-desc p {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.4;
}

.modal-download-btn {
  display: block;
  text-align: center;
  width: 100%;
  border: none;
}

/* Footer */
.footer {
  text-align: center;
  padding: 40px 20px;
  background-color: var(--bg-primary);
  border-top: 1px solid var(--border);
  color: var(--text-secondary);
  font-size: 13px;
}

/* Loading States & Animations */
.loading-container {
  display: none;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 30px 10px;
  background-color: rgba(255, 255, 255, 0.02);
  border: 1px dashed var(--border);
  border-radius: 12px;
  margin-bottom: 25px;
  text-align: center;
}

.loading-container.active {
  display: flex;
}

.spinner {
  width: 48px;
  height: 48px;
  border: 4px solid rgba(255, 102, 0, 0.1);
  border-left-color: var(--accent);
  border-radius: 50%;
  animation: spin 1s linear infinite;
  margin-bottom: 20px;
  box-shadow: 0 0 15px rgba(255, 102, 0, 0.2);
}

.loading-status {
  font-size: 16px;
  font-weight: 600;
  color: #fff;
  margin-bottom: 6px;
}

.loading-subtext {
  font-size: 13px;
  color: var(--text-secondary);
}

@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}