/* ==========================================================================
   KuroX Official Website - Modern Cyberpunk / Dark Glassmorphic Design System
   ========================================================================== */

:root {
  --font-primary: 'Outfit', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;

  /* Color Palette */
  --bg-dark: #07080c;
  --bg-card: rgba(18, 20, 30, 0.7);
  --bg-card-hover: rgba(28, 32, 48, 0.85);
  --bg-elevated: rgba(25, 28, 42, 0.95);
  
  --primary: #8b5cf6;
  --primary-glow: rgba(139, 92, 246, 0.35);
  --primary-gradient: linear-gradient(135deg, #a855f7 0%, #6366f1 100%);
  
  --accent-cyan: #06b6d4;
  --accent-cyan-glow: rgba(6, 182, 212, 0.35);
  --accent-gradient: linear-gradient(135deg, #06b6d4 0%, #3b82f6 100%);

  --accent-rose: #f43f5e;
  --accent-rose-glow: rgba(244, 63, 94, 0.35);
  --rose-gradient: linear-gradient(135deg, #f43f5e 0%, #fb7185 100%);
  
  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --text-subtle: #64748b;

  --border-subtle: rgba(255, 255, 255, 0.08);
  --border-accent: rgba(139, 92, 246, 0.3);
  --border-hover: rgba(255, 255, 255, 0.2);

  --glass-blur: blur(20px);
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-full: 9999px;

  --shadow-sm: 0 4px 12px rgba(0, 0, 0, 0.2);
  --shadow-md: 0 10px 30px rgba(0, 0, 0, 0.4);
  --shadow-glow: 0 0 40px var(--primary-glow);
  --shadow-cyan-glow: 0 0 40px var(--accent-cyan-glow);
  
  --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Reset & Global */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-family: var(--font-primary);
  background-color: var(--bg-dark);
  color: var(--text-main);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  overflow-x: hidden;
  position: relative;
  min-height: 100vh;
  background: radial-gradient(circle at 15% 15%, rgba(139, 92, 246, 0.12) 0%, transparent 45%),
              radial-gradient(circle at 85% 65%, rgba(6, 182, 212, 0.1) 0%, transparent 50%),
              radial-gradient(circle at 50% 90%, rgba(244, 63, 94, 0.08) 0%, transparent 45%),
              var(--bg-dark);
}

/* Background Ambient Glows & Grid */
.ambient-canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  pointer-events: none;
  z-index: 0;
  opacity: 0.6;
}

.ambient-grid {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background-image: linear-gradient(rgba(255, 255, 255, 0.02) 1px, transparent 1px),
                    linear-gradient(90deg, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
  background-size: 40px 40px;
  pointer-events: none;
  z-index: 0;
}

/* Container */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  position: relative;
  z-index: 1;
}

/* Navigation */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  padding: 16px 0;
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  background: rgba(7, 8, 12, 0.75);
  border-bottom: 1px solid var(--border-subtle);
  transition: var(--transition-normal);
}

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

.brand-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: var(--text-main);
  font-weight: 800;
  font-size: 1.4rem;
  letter-spacing: -0.5px;
}

.brand-icon {
  width: 38px;
  height: 38px;
  border-radius: 10px;
  object-fit: cover;
  box-shadow: 0 0 15px var(--primary-glow);
  transition: transform var(--transition-fast);
}

.brand-logo:hover .brand-icon {
  transform: rotate(5deg) scale(1.05);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
  list-style: none;
}

.nav-link {
  color: var(--text-muted);
  text-decoration: none;
  font-weight: 500;
  font-size: 0.95rem;
  transition: color var(--transition-fast);
  position: relative;
}

.nav-link:hover, .nav-link.active {
  color: var(--text-main);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 14px;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 12px 24px;
  border-radius: var(--radius-full);
  font-weight: 600;
  font-size: 0.95rem;
  text-decoration: none;
  cursor: pointer;
  transition: all var(--transition-normal);
  border: 1px solid transparent;
  outline: none;
}

.btn-primary {
  background: var(--primary-gradient);
  color: #fff;
  box-shadow: 0 4px 20px var(--primary-glow);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px var(--primary-glow);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.05);
  border-color: var(--border-subtle);
  color: var(--text-main);
  backdrop-filter: var(--glass-blur);
}

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

.btn-discord {
  background: linear-gradient(135deg, #5865F2 0%, #4752C4 100%);
  color: #fff;
  box-shadow: 0 4px 20px rgba(88, 101, 242, 0.35);
}

.btn-discord:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(88, 101, 242, 0.5);
}

.btn-github-star {
  background: rgba(255, 255, 255, 0.07);
  border: 1px solid var(--border-accent);
  color: #fbbf24;
  font-weight: 600;
  padding: 8px 18px;
  font-size: 0.9rem;
  border-radius: var(--radius-full);
}

.btn-github-star:hover {
  background: rgba(251, 191, 36, 0.15);
  border-color: #fbbf24;
  transform: scale(1.03);
}

.star-icon {
  animation: pulseStar 2s infinite ease-in-out;
}

@keyframes pulseStar {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.25); filter: drop-shadow(0 0 6px #fbbf24); }
}

.star-count {
  background: rgba(0, 0, 0, 0.4);
  padding: 2px 8px;
  border-radius: 12px;
  font-size: 0.8rem;
  color: #fff;
}

/* Badges */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.5px;
}

.badge-fork {
  background: rgba(139, 92, 246, 0.15);
  border: 1px solid rgba(139, 92, 246, 0.35);
  color: #c084fc;
}

.badge-pulse {
  width: 8px;
  height: 8px;
  background: #10b981;
  border-radius: 50%;
  box-shadow: 0 0 10px #10b981;
  animation: pulseDot 1.5s infinite;
}

@keyframes pulseDot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.4; transform: scale(0.8); }
}

/* Hero Section */
.hero-section {
  padding: 160px 0 100px;
  text-align: center;
  position: relative;
}

.hero-content {
  max-width: 880px;
  margin: 0 auto;
}

.hero-title {
  font-size: clamp(2.5rem, 5.5vw, 4.2rem);
  font-weight: 900;
  line-height: 1.15;
  letter-spacing: -1.5px;
  margin: 24px 0 20px;
}

.text-gradient {
  background: var(--primary-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.text-gradient-cyan {
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-description {
  font-size: clamp(1.05rem, 2vw, 1.25rem);
  color: var(--text-muted);
  line-height: 1.7;
  margin-bottom: 36px;
}

.hero-cta-group {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 16px;
  margin-bottom: 48px;
}

.hero-meta-stats {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 32px;
  padding-top: 20px;
  border-top: 1px solid var(--border-subtle);
  margin-top: 20px;
}

.stat-item {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.stat-value {
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--text-main);
}

.stat-label {
  font-size: 0.8rem;
  color: var(--text-subtle);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

/* Feature Mockup Preview */
.mockup-preview-wrapper {
  margin-top: 60px;
  position: relative;
  perspective: 1000px;
}

.mockup-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 12px;
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.6), 0 0 50px var(--primary-glow);
  backdrop-filter: var(--glass-blur);
  transition: transform var(--transition-normal);
}

.mockup-card:hover {
  transform: translateY(-6px);
}

.mockup-header-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 16px;
  border-bottom: 1px solid var(--border-subtle);
  background: rgba(0, 0, 0, 0.3);
  border-radius: var(--radius-md) var(--radius-md) 0 0;
}

.dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}
.dot-red { background: #ef4444; }
.dot-yellow { background: #f59e0b; }
.dot-green { background: #10b981; }

.mockup-title {
  margin-left: 12px;
  font-size: 0.85rem;
  color: var(--text-subtle);
  font-family: var(--font-mono);
}

.mockup-content {
  padding: 24px;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 20px;
}

.mockup-feature-box {
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 20px;
  text-align: left;
}

.feature-box-icon {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  margin-bottom: 14px;
}

/* Comparison Section (ShonenX vs KuroX) */
.section {
  padding: 90px 0;
  position: relative;
}

.section-header {
  text-align: center;
  max-width: 700px;
  margin: 0 auto 50px;
}

.section-tag {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--primary);
  text-transform: uppercase;
  letter-spacing: 1.5px;
  margin-bottom: 12px;
}

.section-title {
  font-size: clamp(2rem, 3.5vw, 2.8rem);
  font-weight: 800;
  letter-spacing: -1px;
  margin-bottom: 16px;
}

.section-description {
  color: var(--text-muted);
  font-size: 1.05rem;
}

/* Comparison Table */
.comparison-table-wrapper {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  backdrop-filter: var(--glass-blur);
}

.comparison-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
}

.comparison-table th, .comparison-table td {
  padding: 18px 24px;
  border-bottom: 1px solid var(--border-subtle);
}

.comparison-table th {
  background: rgba(0, 0, 0, 0.4);
  font-weight: 700;
  font-size: 0.95rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--text-muted);
}

.comparison-table th.kurox-col {
  color: #c084fc;
  background: rgba(139, 92, 246, 0.12);
}

.comparison-table tr:hover td {
  background: rgba(255, 255, 255, 0.02);
}

.comparison-feature-name {
  font-weight: 600;
  color: var(--text-main);
  display: flex;
  align-items: center;
  gap: 10px;
}

.kurox-highlight {
  color: #10b981;
  font-weight: 600;
  background: rgba(16, 185, 129, 0.08);
  border-radius: 6px;
  padding: 4px 8px;
  display: inline-block;
}

.shonenx-status {
  color: #ef4444;
  font-size: 0.9rem;
}

/* Feature Grid */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 28px;
}

.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 32px 28px;
  position: relative;
  overflow: hidden;
  transition: all var(--transition-normal);
  backdrop-filter: var(--glass-blur);
}

.feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: var(--primary-gradient);
  opacity: 0;
  transition: opacity var(--transition-fast);
}

.feature-card:hover {
  transform: translateY(-6px);
  border-color: var(--border-accent);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.5), 0 0 25px var(--primary-glow);
}

.feature-card:hover::before {
  opacity: 1;
}

.feature-icon-wrapper {
  width: 56px;
  height: 56px;
  border-radius: 16px;
  background: rgba(139, 92, 246, 0.1);
  border: 1px solid rgba(139, 92, 246, 0.25);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.6rem;
  margin-bottom: 20px;
}

.feature-title {
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 12px;
}

.feature-text {
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.6;
}

/* Community / Star Banner */
.community-banner {
  background: linear-gradient(135deg, rgba(139, 92, 246, 0.15) 0%, rgba(6, 182, 212, 0.15) 100%);
  border: 1px solid var(--border-accent);
  border-radius: var(--radius-lg);
  padding: 60px 40px;
  text-align: center;
  box-shadow: var(--shadow-glow);
  position: relative;
  overflow: hidden;
}

.community-banner::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle, rgba(139, 92, 246, 0.1) 0%, transparent 60%);
  pointer-events: none;
}

.community-title {
  font-size: clamp(1.8rem, 3vw, 2.5rem);
  font-weight: 800;
  margin-bottom: 16px;
}

.community-desc {
  max-width: 600px;
  margin: 0 auto 32px;
  color: var(--text-muted);
  font-size: 1.05rem;
}

.community-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  justify-content: center;
}

/* Download Page Specific Styles */
.download-hero {
  padding: 140px 0 60px;
  text-align: center;
}

.os-detector-banner {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: rgba(6, 182, 212, 0.12);
  border: 1px solid rgba(6, 182, 212, 0.3);
  padding: 10px 20px;
  border-radius: var(--radius-full);
  margin-bottom: 24px;
  font-size: 0.95rem;
  color: #38bdf8;
}

.download-tabs {
  display: flex;
  justify-content: center;
  gap: 12px;
  margin-bottom: 40px;
  flex-wrap: wrap;
}

.tab-btn {
  padding: 12px 28px;
  border-radius: var(--radius-full);
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-subtle);
  color: var(--text-muted);
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 10px;
  transition: all var(--transition-fast);
}

.tab-btn:hover {
  color: var(--text-main);
  background: rgba(255, 255, 255, 0.08);
}

.tab-btn.active {
  background: var(--primary-gradient);
  color: #fff;
  border-color: transparent;
  box-shadow: 0 4px 20px var(--primary-glow);
}

.download-platform-panel {
  display: none;
}

.download-platform-panel.active {
  display: block;
  animation: fadeIn 0.4s ease forwards;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

.download-cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
  margin-bottom: 40px;
}

.download-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 28px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  backdrop-filter: var(--glass-blur);
  transition: all var(--transition-normal);
  position: relative;
}

.download-card.recommended {
  border-color: var(--accent-cyan);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.4), var(--shadow-cyan-glow);
}

.badge-recommended {
  position: absolute;
  top: 16px;
  right: 16px;
  background: var(--accent-gradient);
  color: #fff;
  font-size: 0.75rem;
  padding: 4px 10px;
  border-radius: var(--radius-full);
  font-weight: 700;
  text-transform: uppercase;
}

.download-card:hover {
  transform: translateY(-4px);
  border-color: var(--border-hover);
}

.download-card-header {
  margin-bottom: 16px;
}

.card-os-tag {
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--accent-cyan);
  letter-spacing: 1px;
}

.card-title {
  font-size: 1.35rem;
  font-weight: 800;
  margin: 6px 0;
}

.card-desc {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.5;
}

.card-meta-list {
  list-style: none;
  margin: 16px 0 24px;
  padding: 12px 0;
  border-top: 1px solid var(--border-subtle);
  border-bottom: 1px solid var(--border-subtle);
  font-size: 0.85rem;
  color: var(--text-subtle);
}

.card-meta-list li {
  display: flex;
  justify-content: space-between;
  padding: 4px 0;
}

.card-meta-list li span:last-child {
  color: var(--text-main);
  font-weight: 600;
}

.download-btn-direct {
  width: 100%;
  padding: 14px;
  border-radius: var(--radius-md);
  font-weight: 700;
  font-size: 0.95rem;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  cursor: pointer;
  border: none;
  background: var(--primary-gradient);
  color: #fff;
  box-shadow: 0 4px 15px var(--primary-glow);
  transition: all var(--transition-fast);
}

.download-btn-direct:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 25px var(--primary-glow);
}

.download-btn-direct.cyan {
  background: var(--accent-gradient);
  box-shadow: 0 4px 15px var(--accent-cyan-glow);
}

.download-btn-direct.cyan:hover {
  box-shadow: 0 6px 25px var(--accent-cyan-glow);
}

/* Download Toast Modal */
.download-toast {
  position: fixed;
  bottom: 24px;
  right: 24px;
  background: var(--bg-elevated);
  border: 1px solid var(--accent-cyan);
  border-radius: var(--radius-md);
  padding: 20px 24px;
  max-width: 380px;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.6), var(--shadow-cyan-glow);
  backdrop-filter: var(--glass-blur);
  z-index: 2000;
  transform: translateY(120%);
  transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.download-toast.show {
  transform: translateY(0);
}

.toast-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 8px;
}

.toast-title {
  font-weight: 700;
  font-size: 1rem;
  color: #38bdf8;
  display: flex;
  align-items: center;
  gap: 8px;
}

.toast-close {
  background: none;
  border: none;
  color: var(--text-subtle);
  font-size: 1.2rem;
  cursor: pointer;
}

.toast-desc {
  font-size: 0.85rem;
  color: var(--text-muted);
  line-height: 1.4;
}

/* FAQ Accordion */
.faq-list {
  max-width: 800px;
  margin: 0 auto;
}

.faq-item {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  margin-bottom: 16px;
  overflow: hidden;
  transition: border-color var(--transition-fast);
}

.faq-item:hover {
  border-color: var(--border-hover);
}

.faq-question {
  width: 100%;
  padding: 20px 24px;
  text-align: left;
  background: none;
  border: none;
  color: var(--text-main);
  font-size: 1.1rem;
  font-weight: 600;
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
}

.faq-chevron {
  transition: transform var(--transition-fast);
  color: var(--primary);
}

.faq-item.active .faq-chevron {
  transform: rotate(180deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-normal), padding var(--transition-normal);
  padding: 0 24px;
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.6;
}

.faq-item.active .faq-answer {
  max-height: 250px;
  padding: 0 24px 20px;
}

/* Footer */
.footer {
  padding: 80px 0 40px;
  border-top: 1px solid var(--border-subtle);
  background: rgba(4, 5, 8, 0.8);
  font-size: 0.9rem;
  color: var(--text-subtle);
}

.footer-content {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 50px;
}

.footer-brand p {
  margin-top: 12px;
  line-height: 1.6;
  max-width: 320px;
  color: var(--text-muted);
}

.footer-col h4 {
  color: var(--text-main);
  font-size: 1rem;
  margin-bottom: 16px;
}

.footer-col ul {
  list-style: none;
}

.footer-col li {
  margin-bottom: 10px;
}

.footer-col a {
  color: var(--text-muted);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.footer-col a:hover {
  color: var(--primary);
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 30px;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  flex-wrap: wrap;
  gap: 16px;
}

/* Responsive */
@media (max-width: 900px) {
  .footer-content {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 768px) {
  .nav-links {
    display: none;
  }
  .footer-content {
    grid-template-columns: 1fr;
  }
  .hero-meta-stats {
    gap: 16px;
  }
  .hero-section {
    padding: 130px 0 60px;
  }
}