/* ===== CSS Variables ===== */
:root {
  /* Core Colors */
  --color-bg: #0f0f0f;
  --color-bg-secondary: #151515;
  --color-bg-elevated: #1a1a1a;
  
  --color-text: #ffffff;
  --color-text-secondary: #a0a0a0;
  --color-text-tertiary: #666666;
  
  --color-accent: #00dd77;
  --color-accent-alt: #ff0080;
  --color-accent-blue: #00d4ff;
  --color-accent-yellow: #ffdd00;
  
  --color-border: #333333;
  --color-border-accent: #00dd77;
  
  /* Spacing */
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 2rem;
  --space-xl: 3rem;
  --space-2xl: 4rem;
  --space-3xl: 6rem;
  
  /* Typography */
  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', monospace;
  --font-mono: 'SF Mono', 'Consolas', 'Monaco', monospace;
  --font-size-base: 16px;
  --line-height-base: 1.5;
  
  /* Layout */
  --max-width: 1400px;
  --border-radius: 2px;
  
  /* Effects */
  --shadow-glow: 0 4px 20px rgba(0, 0, 0, 0.4);
  --shadow-glow-pink: 0 4px 20px rgba(0, 0, 0, 0.5);
}

/* ===== Reset & Base Styles ===== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  font-size: var(--font-size-base);
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-family);
  background-color: var(--color-bg);
  color: var(--color-text);
  line-height: var(--line-height-base);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

a {
  color: inherit;
  text-decoration: none;
  transition: all 0.2s ease;
}

/* ===== Layout ===== */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

/* ===== Header ===== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background-color: rgba(0, 0, 0, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 2px solid var(--color-border);
  padding: var(--space-md) 0;
}

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

.logo {
  display: flex;
  flex-direction: row;
  align-items: baseline;
  gap: 0.45rem;
  line-height: 1;
  white-space: nowrap;
}

.logo-image {
  height: 40px;
  width: auto;
  max-width: 180px;
  display: block;
  transition: transform 0.3s ease, filter 0.3s ease;
}

.logo:hover .logo-image {
  filter: drop-shadow(0 0 4px rgba(0, 221, 119, 0.3));
  transform: scale(1.03);
}

.logo-line-1,
.logo-line-2 {
  font-size: 1.25rem;
  font-weight: 900;
  font-family: var(--font-mono);
  letter-spacing: 0.02em;
  white-space: nowrap;
}

.logo-line-1 {
  color: var(--color-text);
}

.logo-line-2 {
  color: var(--color-text-secondary);
}

.logo:hover .logo-line-1 {
  color: var(--color-accent);
}

.logo:hover .logo-line-2 {
  color: var(--color-accent);
}

.nav {
  display: flex;
  gap: var(--space-xl);
  align-items: center;
}

.nav a {
  color: var(--color-text-secondary);
  font-weight: 600;
  font-size: 0.9rem;
  letter-spacing: 0.02em;
  position: relative;
  white-space: nowrap;
}

.nav a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-accent);
  transition: width 0.3s ease;
}

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

.nav a:hover::after,
.nav a.active::after {
  width: 100%;
}

/* Hamburger menu toggle (hidden by default, visible on mobile) */
.nav-toggle {
  display: none;
  background: none;
  border: 1px solid var(--color-border);
  color: var(--color-text);
  font-size: 1.5rem;
  cursor: pointer;
  padding: 0.4rem 0.6rem;
  line-height: 1;
  border-radius: 4px;
  transition: border-color 0.2s ease, color 0.2s ease;
}

.nav-toggle:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

.nav-download {
  color: var(--color-bg) !important;
  background: var(--color-accent);
  padding: 0.65rem 1.75rem;
  font-family: var(--font-mono);
  font-weight: 700 !important;
  font-size: 0.85rem !important;
  letter-spacing: 0.02em !important;
  border-radius: 4px;
  box-shadow: 0 0 0 2px var(--color-accent), 0 0 15px rgba(0, 221, 119, 0.4);
  transition: background 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease !important;
}

.nav-download::after {
  display: none !important;
}

.nav-download:hover {
  background: #00ff88;
  color: var(--color-bg) !important;
  transform: translateY(-1px);
  box-shadow: 0 2px 12px rgba(0, 221, 119, 0.3);
}

/* Table overflow protection */
table {
  display: block;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  max-width: 100%;
}

/* ===== Hero Section ===== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: calc(var(--space-3xl) + 60px);
  padding-bottom: var(--space-3xl);
  overflow: hidden;
}

.hero-bg-elements {
  display: none;
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 900px;
}

.hero-label {
  font-family: var(--font-mono);
  font-size: 0.875rem;
  color: var(--color-accent);
  letter-spacing: 0.1em;
  margin-bottom: var(--space-md);
}

.hero-title {
  margin-bottom: var(--space-lg);
}

.title-line-1,
.title-line-2 {
  display: block;
  font-size: clamp(2.5rem, 6.5vw, 5rem);
  font-weight: 900;
  line-height: 0.9;
  letter-spacing: -0.03em;
}

.title-line-1 {
  color: var(--color-text);
}

.title-line-2 {
  color: var(--color-text-secondary);
}

.title-accent {
  display: block;
  font-size: clamp(1.5rem, 4vw, 2.5rem);
  font-weight: 700;
  color: var(--color-accent);
  font-family: var(--font-mono);
  margin-top: var(--space-sm);
  letter-spacing: 0.05em;
}

.hero-meta {
  display: flex;
  gap: var(--space-md);
  align-items: center;
  margin-bottom: var(--space-xl);
  flex-wrap: wrap;
}

.meta-item {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--color-text-secondary);
  letter-spacing: 0.05em;
  padding: 0.4rem 0.8rem;
  border: 1px solid var(--color-border);
  background: var(--color-bg-secondary);
}

.meta-divider {
  color: var(--color-accent);
  font-weight: 700;
}

.hero-description {
  font-size: 1.125rem;
  color: var(--color-text-secondary);
  max-width: 600px;
  margin-bottom: var(--space-xl);
  line-height: 1.7;
}

.hero-actions {
  display: flex;
  gap: var(--space-lg);
  flex-wrap: wrap;
}

.action-primary {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: 1rem 2rem;
  background: var(--color-accent);
  color: var(--color-bg);
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 0.95rem;
  letter-spacing: 0.02em;
  border: 2px solid var(--color-accent);
  position: relative;
  overflow: hidden;
  transition: all 0.3s ease;
}

.action-primary::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: var(--color-text);
  transition: left 0.3s ease;
  z-index: -1;
}

.action-primary:hover::before {
  left: 0;
}

.action-primary:hover {
  color: var(--color-bg);
  transform: translateY(-2px);
  box-shadow: 0 4px 20px rgba(0, 221, 119, 0.25);
}

.action-arrow {
  font-size: 1.2rem;
  transition: transform 0.3s ease;
}

.action-primary:hover .action-arrow {
  transform: translateX(4px);
}

.action-secondary {
  display: inline-flex;
  align-items: center;
  padding: 1rem 2rem;
  color: var(--color-text);
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 0.95rem;
  letter-spacing: 0.02em;
  border: 2px solid var(--color-border);
  background: transparent;
  transition: all 0.3s ease;
}

.action-secondary:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
  box-shadow: inset 0 0 20px rgba(0, 221, 119, 0.08);
}

/* ===== Sections ===== */
section {
  padding: var(--space-3xl) 0;
}

.section-label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--color-accent);
  letter-spacing: 0.15em;
  margin-bottom: var(--space-md);
}

.section-title {
  font-size: clamp(2.5rem, 6vw, 4rem);
  font-weight: 900;
  line-height: 1.1;
  letter-spacing: -0.02em;
}

/* ===== Screenshot Showcase ===== */
.screenshot-showcase {
  background: var(--color-bg);
  padding: var(--space-3xl) 0;
  border-top: 1px solid var(--color-border);
}

.showcase-card {
  border-color: var(--color-accent-blue);
}

.showcase-card::before {
  background: radial-gradient(circle, rgba(0, 212, 255, 0.08) 0%, transparent 70%);
}

.showcase-card .feature-num {
  color: var(--color-accent-blue);
}

.showcase-card .feature-tag {
  background: var(--color-accent-blue);
}

.showcase-flex {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-2xl);
  align-items: center;
  width: 100%;
}

.showcase-image-box {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  padding: var(--space-xs);
  position: relative;
  overflow: hidden;
}

.showcase-image-box {
  cursor: pointer;
  position: relative;
}

.showcase-image-box img {
  width: 100%;
  height: auto;
  display: block;
  max-height: 280px;
  object-fit: cover;
  object-position: top;
}

.showcase-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.6);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.showcase-overlay span {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--color-text);
  padding: 0.75rem 1.5rem;
  border: 2px solid var(--color-accent-blue);
  background: rgba(0, 212, 255, 0.1);
  letter-spacing: 0.05em;
  font-weight: 700;
}

.showcase-image-box:hover .showcase-overlay {
  opacity: 1;
}

/* Modal Styles */
.modal {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.95);
  backdrop-filter: blur(10px);
  z-index: 10000;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s ease;
  padding: var(--space-lg);
}

.modal.active {
  opacity: 1;
  visibility: visible;
}

.modal-content {
  position: relative;
  max-width: 1400px;
  max-height: 90vh;
  display: flex;
  flex-direction: column;
}

.modal-content img {
  max-width: 100%;
  max-height: 85vh;
  object-fit: contain;
  border: 2px solid var(--color-border);
  box-shadow: 0 0 60px rgba(0, 212, 255, 0.2);
}

.modal-close {
  position: absolute;
  top: -50px;
  right: 0;
  font-size: 2.5rem;
  color: var(--color-text);
  cursor: pointer;
  line-height: 1;
  transition: color 0.3s ease;
}

.modal-close:hover {
  color: var(--color-accent-blue);
}

@media (max-width: 768px) {
  .modal {
    padding: var(--space-md);
  }
  
  .modal-close {
    top: -40px;
    font-size: 2rem;
  }
  
  .modal-content img {
    max-height: 80vh;
  }
}

.showcase-image-box::after {
  content: '';
  position: absolute;
  bottom: var(--space-xs);
  left: var(--space-xs);
  right: var(--space-xs);
  height: 60px;
  background: linear-gradient(
    180deg,
    transparent 0%,
    rgba(15, 15, 15, 0.3) 40%,
    rgba(15, 15, 15, 0.8) 100%
  );
  pointer-events: none;
}

@media (max-width: 1024px) {
  .showcase-flex {
    grid-template-columns: 1fr;
    text-align: center;
  }
  
  .showcase-card .feature-content p {
    max-width: 500px;
    margin-left: auto;
    margin-right: auto;
  }
  
  .showcase-card .feature-tag {
    margin: 0 auto;
  }
  
  .showcase-image-box {
    max-width: 450px;
    margin: 0 auto;
  }
}

@media (max-width: 768px) {
  .showcase-image-box {
    max-width: 100%;
  }
  
  .showcase-image-box img {
    max-height: 220px;
  }
}

/* ===== Features ===== */
.features {
  background: var(--color-bg);
  position: relative;
}

.features::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--color-accent), transparent);
}

.features-header {
  margin-bottom: var(--space-2xl);
}

.features-layout {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-lg);
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
}

.feature-primary {
  background: linear-gradient(135deg, var(--color-bg-elevated) 0%, var(--color-bg-secondary) 100%);
  border: 2px solid var(--color-accent);
  padding: var(--space-2xl);
  position: relative;
  overflow: hidden;
}

.feature-primary::before {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 200px;
  height: 200px;
  background: radial-gradient(circle, rgba(0, 221, 119, 0.08) 0%, transparent 70%);
  pointer-events: none;
}

.feature-num {
  font-family: var(--font-mono);
  font-size: 3rem;
  font-weight: 900;
  color: var(--color-text-tertiary);
  line-height: 1;
  margin-bottom: var(--space-md);
}

.feature-content h3 {
  font-size: 2rem;
  font-weight: 800;
  margin-bottom: var(--space-md);
  letter-spacing: -0.01em;
}

.feature-content p {
  font-size: 1.125rem;
  color: var(--color-text-secondary);
  line-height: 1.7;
  max-width: 700px;
  margin-bottom: var(--space-md);
}

.feature-tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  padding: 0.4rem 0.8rem;
  background: var(--color-accent);
  color: var(--color-bg);
  font-weight: 700;
  letter-spacing: 0.05em;
}

.feature-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: var(--space-lg);
}

.feature-item {
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  padding: var(--space-xl);
  transition: all 0.3s ease;
  position: relative;
}

.feature-item::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-accent);
  transition: width 0.3s ease;
}

.feature-item:hover::before {
  width: 100%;
}

.feature-item:hover {
  border-color: var(--color-accent);
  transform: translateX(8px);
}

.feature-item .feature-num {
  font-size: 2rem;
  margin-bottom: var(--space-sm);
}

.feature-item h3 {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: var(--space-sm);
  letter-spacing: 0;
}

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

.feature-highlight {
  border-color: var(--color-accent-alt);
}

.feature-highlight .feature-num {
  color: var(--color-text-tertiary);
}

.feature-highlight::before {
  background: var(--color-accent-alt);
}

.feature-highlight:hover {
  border-color: var(--color-accent-alt);
  box-shadow: var(--shadow-glow-pink);
}

.feature-banner {
  background: var(--color-accent);
  padding: var(--space-xl);
  margin-top: var(--space-lg);
  position: relative;
  overflow: hidden;
}

.banner-content {
  position: relative;
  z-index: 1;
}

.banner-text {
  font-family: var(--font-mono);
  font-size: clamp(1rem, 3vw, 1.5rem);
  font-weight: 900;
  color: var(--color-bg);
  text-align: center;
  letter-spacing: 0.05em;
}

/* ===== Architecture Section ===== */
.architecture-section {
  background: var(--color-bg-secondary);
  position: relative;
}

.architecture-section::before,
.architecture-section::after {
  content: '';
  position: absolute;
  left: 0;
  right: 0;
  height: 1px;
  background: var(--color-border);
}

.architecture-section::before { top: 0; }
.architecture-section::after { bottom: 0; }

.arch-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--space-xl);
  margin-top: var(--space-2xl);
}

.arch-node {
  background: var(--color-bg);
  border: 2px solid var(--color-border);
  padding: var(--space-xl);
  position: relative;
  transition: all 0.3s ease;
}

.arch-node::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-accent-blue);
  transition: width 0.4s ease;
}

.arch-node:hover::after {
  width: 100%;
}

.arch-node:hover {
  border-color: var(--color-accent-blue);
  transform: translateY(-8px);
}

.arch-node-center {
  border-color: var(--color-accent);
}

.arch-node-center:hover {
  border-color: var(--color-accent);
  box-shadow: 0 0 25px rgba(0, 221, 119, 0.15);
}

.arch-node-center::after {
  background: var(--color-accent);
}

.node-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--space-md);
}

.node-num {
  font-family: var(--font-mono);
  font-size: 1.5rem;
  font-weight: 900;
  color: var(--color-accent-blue);
  background: var(--color-bg-secondary);
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 2px solid var(--color-accent-blue);
}

.arch-node-center .node-num {
  color: var(--color-accent);
  border-color: var(--color-accent);
}

.node-status {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--color-accent);
  letter-spacing: 0.15em;
  padding: 0.3rem 0.6rem;
  border: 1px solid var(--color-accent);
  background: rgba(0, 221, 119, 0.05);
}

.arch-node h3 {
  font-size: 1.5rem;
  font-weight: 800;
  margin-bottom: var(--space-md);
  letter-spacing: 0.02em;
}

.arch-node p {
  font-family: var(--font-mono);
  font-size: 0.875rem;
  color: var(--color-text-secondary);
  line-height: 1.8;
}

.node-connector {
  position: absolute;
  right: -20px;
  top: 50%;
  width: 20px;
  height: 2px;
  background: var(--color-border);
  display: none;
}

@media (min-width: 1024px) {
  .node-connector {
    display: block;
  }
  .arch-node:last-child .node-connector {
    display: none;
  }
}

/* ===== Pricing Section ===== */
.pricing {
  background: var(--color-bg);
  position: relative;
  overflow: hidden;
}

.pricing::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--color-accent-alt), transparent);
}

.pricing-container {
  max-width: 900px;
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

.pricing-block {
  background: var(--color-bg-elevated);
  border: 2px solid var(--color-accent-alt);
  padding: var(--space-2xl);
  position: relative;
}

.pricing-block::before {
  content: '';
  position: absolute;
  top: -2px;
  left: -2px;
  right: -2px;
  bottom: -2px;
  background: linear-gradient(135deg, var(--color-accent-alt), var(--color-accent));
  opacity: 0;
  transition: opacity 0.3s ease;
  z-index: -1;
}

.pricing-block:hover::before {
  opacity: 0.1;
}

.pricing-title {
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  font-weight: 900;
  line-height: 1;
  margin-bottom: var(--space-xl);
  letter-spacing: -0.02em;
}

.pricing-grid {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: var(--space-lg);
  margin-bottom: var(--space-xl);
  align-items: center;
}

.pricing-item {
  padding: var(--space-lg);
  border: 1px solid var(--color-border);
  background: var(--color-bg-secondary);
}

.pricing-item-highlight {
  border-color: var(--color-accent-alt);
  background: var(--color-bg);
  position: relative;
}

.pricing-item-highlight::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: var(--color-accent-alt);
}

.pricing-label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--color-text-secondary);
  letter-spacing: 0.1em;
  margin-bottom: var(--space-sm);
}

.pricing-value {
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--color-text);
}

.pricing-divider {
  width: 2px;
  height: 60px;
  background: var(--color-accent-alt);
}

.pricing-features {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  margin-bottom: var(--space-xl);
}

.pricing-features span {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  padding: 0.5rem 1rem;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  color: var(--color-text-secondary);
  letter-spacing: 0.02em;
}

.pricing-action {
  display: inline-flex;
  align-items: center;
  gap: var(--space-md);
  padding: 1.25rem 2.5rem;
  background: transparent;
  border: 2px solid var(--color-accent-alt);
  color: var(--color-accent-alt);
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 1rem;
  letter-spacing: 0.02em;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

.pricing-action::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  background: var(--color-accent-alt);
  transform: translate(-50%, -50%);
  transition: width 0.4s ease, height 0.4s ease;
  z-index: -1;
}

.pricing-action:hover::before {
  width: 100%;
  height: 100%;
}

.pricing-action:hover {
  color: var(--color-bg);
  box-shadow: var(--shadow-glow-pink);
}

/* ===== Download Section ===== */
.download {
  background: var(--color-bg-secondary);
  position: relative;
}

.download::before,
.download::after {
  content: '';
  position: absolute;
  left: 0;
  right: 0;
  height: 1px;
  background: var(--color-border);
}

.download::before { top: 0; }
.download::after { bottom: 0; }

.download-layout {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

.download-header {
  margin-bottom: var(--space-2xl);
}

.download-title {
  font-size: clamp(2.5rem, 6vw, 4rem);
  font-weight: 900;
  line-height: 1.1;
  letter-spacing: -0.02em;
}

.download-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: var(--space-lg);
  margin-bottom: var(--space-xl);
}

.platform-card {
  background: var(--color-bg);
  border: 2px solid var(--color-border);
  padding: var(--space-xl);
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  transition: all 0.3s ease;
  position: relative;
}

.platform-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 0;
  background: var(--color-accent);
  transition: height 0.3s ease;
  z-index: 0;
}

.platform-card:hover::before {
  height: 4px;
}

.platform-card:hover {
  border-color: var(--color-accent);
  transform: scale(1.02);
}

.platform-windows:hover { border-color: var(--color-accent-blue); }
.platform-windows:hover::before { background: var(--color-accent-blue); }

.platform-mac:hover { border-color: var(--color-text); }
.platform-mac:hover::before { background: var(--color-text); }

.platform-linux:hover { border-color: var(--color-accent-yellow); }
.platform-linux:hover::before { background: var(--color-accent-yellow); }

.platform-icon {
  font-size: 2.5rem;
  opacity: 0.5;
}

.platform-info {
  flex: 1;
}

.platform-name {
  font-size: 1.75rem;
  font-weight: 800;
  letter-spacing: 0.02em;
  margin-bottom: var(--space-xs);
}

.platform-meta {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--color-text-secondary);
  letter-spacing: 0.05em;
}

.platform-formats {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--color-text-tertiary);
  margin-top: var(--space-xs);
  letter-spacing: 0.05em;
}

.platform-action {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--color-accent);
  letter-spacing: 0.05em;
  transition: all 0.3s ease;
}

.platform-card:hover .platform-action {
  transform: translateX(8px);
}

.download-disclaimer {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-md);
  background: var(--color-bg-elevated);
  border-left: 3px solid var(--color-accent-yellow);
  font-size: 0.95rem;
  color: var(--color-text-secondary);
}

.disclaimer-icon {
  font-size: 1.25rem;
  color: var(--color-accent-yellow);
}

.download-disclaimer a {
  color: var(--color-accent);
  text-decoration: underline;
}

.download-disclaimer a:hover {
  color: var(--color-text);
}

/* ===== Footer ===== */
.site-footer {
  background: var(--color-bg);
  border-top: 2px solid var(--color-border);
  padding: var(--space-2xl) 0 var(--space-lg);
  position: relative;
}

.site-footer::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--color-accent), var(--color-accent-alt), var(--color-accent-blue));
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-xl);
  margin-bottom: var(--space-xl);
}

.footer-section h4 {
  font-size: 0.9rem;
  font-weight: 700;
  font-family: var(--font-mono);
  margin-bottom: var(--space-md);
  color: var(--color-accent);
  letter-spacing: 0.05em;
}

.footer-section p {
  color: var(--color-text-secondary);
  font-size: 0.9rem;
  line-height: 1.6;
}

.footer-section a {
  display: block;
  color: var(--color-text-secondary);
  font-size: 0.9rem;
  margin-bottom: var(--space-xs);
  transition: all 0.2s;
  position: relative;
  padding-left: 12px;
}

.footer-section a::before {
  content: '→';
  position: absolute;
  left: 0;
  opacity: 0;
  transition: opacity 0.2s;
}

.footer-section a:hover {
  color: var(--color-accent);
  padding-left: 20px;
}

.footer-section a:hover::before {
  opacity: 1;
}

.footer-bottom {
  text-align: center;
  padding-top: var(--space-lg);
  border-top: 1px solid var(--color-border);
  color: var(--color-text-tertiary);
  font-size: 0.85rem;
  font-family: var(--font-mono);
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .arch-grid {
    grid-template-columns: 1fr;
  }
  
  .pricing-grid {
    grid-template-columns: 1fr;
  }
  
  .pricing-divider {
    width: 100%;
    height: 2px;
  }
}

/* Tablet and smaller */
@media (max-width: 768px) {
  .site-header {
    padding: var(--space-sm) 0;
  }
  
  .header-content {
    flex-wrap: wrap;
    gap: var(--space-sm);
  }

  .logo-image {
    height: 32px;
    max-width: 140px;
  }

  /* Show hamburger toggle, hide nav by default */
  .nav-toggle {
    display: block !important;
  }

  .nav {
    display: none;
    flex-direction: column;
    gap: 0;
    width: 100%;
    order: 3;
    padding-top: var(--space-sm);
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: 4px;
    overflow: hidden;
  }

  .nav.nav-open {
    display: flex;
  }

  .nav a {
    font-size: 0.85rem;
    padding: 0.75rem var(--space-md);
    border-bottom: 1px solid var(--color-border);
  }

  .nav a:last-child {
    border-bottom: none;
  }

  .nav a::after {
    display: none;
  }

  .nav-download {
    border-radius: 0;
    text-align: center;
    padding: 0.75rem var(--space-md) !important;
    font-size: 0.85rem !important;
    letter-spacing: 0.06em !important;
  }
  
  .hero {
    min-height: auto;
    padding-top: calc(var(--space-2xl) + 60px);
    padding-bottom: var(--space-2xl);
  }
  
  .hero-block-1,
  .hero-block-2 {
    display: none;
  }
  
  .title-line-1,
  .title-line-2 {
    font-size: clamp(2rem, 10vw, 4rem);
  }
  
  .hero-meta {
    flex-direction: column;
    align-items: flex-start;
  }
  
  .meta-divider {
    display: none;
  }
  
  .hero-actions {
    flex-direction: column;
    width: 100%;
  }
  
  .action-primary,
  .action-secondary {
    width: 100%;
    justify-content: center;
  }
  
  section {
    padding: var(--space-2xl) 0;
  }
  
  .feature-row {
    grid-template-columns: 1fr;
  }
  
  .download-grid {
    grid-template-columns: 1fr;
  }
  
  .footer-content {
    grid-template-columns: 1fr;
    gap: var(--space-lg);
  }
  
  .download-disclaimer {
    flex-direction: column;
    text-align: center;
  }
}

/* Small phones */
@media (max-width: 480px) {
  .container,
  .features-layout,
  .pricing-container,
  .download-layout {
    padding: 0 var(--space-md);
  }
  
  .site-header {
    padding: var(--space-xs) 0;
  }

  .logo-image {
    height: 28px;
    max-width: 120px;
  }

  .nav a {
    font-size: 0.8rem;
    padding: 0.6rem var(--space-sm);
  }

  .nav-download {
    padding: 0.6rem var(--space-sm) !important;
    font-size: 0.8rem !important;
    white-space: nowrap;
    text-align: center;
  }

  .nav-toggle {
    padding: 0.3rem 0.5rem;
    font-size: 1.25rem;
  }
  
  .hero {
    padding-top: calc(var(--space-xl) + 60px);
    padding-bottom: var(--space-xl);
  }

  .hero-label {
    font-size: 0.75rem;
  }

  .hero-description {
    font-size: 1rem;
  }

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

  .section-title {
    font-size: clamp(1.75rem, 8vw, 2.5rem);
  }
  
  .feature-primary,
  .pricing-block {
    padding: var(--space-lg);
  }

  .feature-item {
    padding: var(--space-lg);
  }

  .feature-content h3 {
    font-size: 1.5rem;
  }
  
  .pricing-features {
    flex-direction: column;
  }
  
  .pricing-features span {
    width: 100%;
    text-align: center;
  }

  .pricing-action {
    width: 100%;
    justify-content: center;
  }

  .platform-card {
    padding: var(--space-lg);
  }

  .platform-name {
    font-size: 1.25rem;
  }

  .footer-section {
    text-align: center;
  }

  .footer-section a {
    padding-left: 0;
  }

  .footer-section a::before {
    display: none;
  }

  .footer-bottom {
    font-size: 0.75rem;
  }
}

/* ===== Animations & Effects ===== */

.feature-primary:hover {
  box-shadow: 0 0 20px rgba(0, 221, 119, 0.12);
}

/* Reduced motion support */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}