/* PG Platform Deep Analysis - Main Stylesheet */
/* Unique Design: Dark tech theme with cyan/amber accents */

:root {
  --bg-primary: #0a0e1a;
  --bg-secondary: #111827;
  --bg-card: #1a2236;
  --bg-card-hover: #1f2a42;
  --text-primary: #e8eaf0;
  --text-secondary: #9ca3af;
  --text-muted: #6b7280;
  --accent-cyan: #06d6a0;
  --accent-amber: #f59e0b;
  --accent-blue: #3b82f6;
  --accent-purple: #8b5cf6;
  --accent-red: #ef4444;
  --border-color: #1e293b;
  --gradient-primary: linear-gradient(135deg, #06d6a0 0%, #3b82f6 100%);
  --gradient-dark: linear-gradient(180deg, #0a0e1a 0%, #111827 100%);
  --shadow-card: 0 4px 24px rgba(0,0,0,0.3);
  --shadow-glow: 0 0 20px rgba(6,214,160,0.15);
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --font-heading: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
  --font-body: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
  --font-mono: 'Fira Code', 'Source Code Pro', monospace;
  --max-width: 1280px;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-body);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.8;
  min-height: 100vh;
  overflow-x: hidden;
}

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

a {
  color: var(--accent-cyan);
  text-decoration: none;
  transition: var(--transition);
}

a:hover {
  color: var(--accent-amber);
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.3;
  color: var(--text-primary);
}

h1 { font-size: 2.5rem; margin-bottom: 1rem; }
h2 { font-size: 2rem; margin-bottom: 0.875rem; }
h3 { font-size: 1.5rem; margin-bottom: 0.75rem; }
h4 { font-size: 1.25rem; margin-bottom: 0.625rem; }
h5 { font-size: 1.1rem; margin-bottom: 0.5rem; }
h6 { font-size: 1rem; margin-bottom: 0.5rem; }

p {
  margin-bottom: 1rem;
  color: var(--text-secondary);
}

.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* Jammer Block - Hidden visually but accessible to crawlers */
.jammer-block {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
  border: 0;
  padding: 0;
  margin: -1px;
}

/* Navigation */
.site-nav {
  background: rgba(10, 14, 26, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border-color);
  padding: 1rem 0;
  z-index: 1000;
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.5rem;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-primary);
}

.nav-logo .logo-icon {
  width: 36px;
  height: 36px;
  background: var(--gradient-primary);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 900;
  font-size: 0.875rem;
  color: #0a0e1a;
}

.nav-links {
  display: flex;
  list-style: none;
  gap: 0.25rem;
}

.nav-links a {
  display: block;
  padding: 0.5rem 1rem;
  color: var(--text-secondary);
  border-radius: var(--radius-sm);
  font-size: 0.9375rem;
  transition: var(--transition);
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--accent-cyan);
  background: rgba(6, 214, 160, 0.08);
}

.mobile-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.mobile-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: var(--transition);
}

/* Hero Section */
.hero {
  padding: 5rem 0 4rem;
  background: var(--gradient-dark);
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle at 30% 50%, rgba(6,214,160,0.05) 0%, transparent 50%),
              radial-gradient(circle at 70% 50%, rgba(59,130,246,0.05) 0%, transparent 50%);
  animation: heroGlow 15s ease-in-out infinite alternate;
}

@keyframes heroGlow {
  0% { transform: translate(0, 0); }
  100% { transform: translate(-5%, 5%); }
}

.hero-content {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 900px;
  margin: 0 auto;
}

.hero-badge {
  display: inline-block;
  padding: 0.375rem 1rem;
  background: rgba(6, 214, 160, 0.1);
  border: 1px solid rgba(6, 214, 160, 0.3);
  border-radius: 50px;
  font-size: 0.8125rem;
  color: var(--accent-cyan);
  margin-bottom: 1.5rem;
  letter-spacing: 0.05em;
}

.hero h1 {
  font-size: 3rem;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 1.25rem;
}

.hero-desc {
  font-size: 1.125rem;
  color: var(--text-secondary);
  max-width: 700px;
  margin: 0 auto 2rem;
}

.hero-stats {
  display: flex;
  justify-content: center;
  gap: 3rem;
  margin-top: 2.5rem;
}

.hero-stat {
  text-align: center;
}

.hero-stat .stat-num {
  display: block;
  font-size: 2.25rem;
  font-weight: 800;
  color: var(--accent-cyan);
  font-family: var(--font-mono);
}

.hero-stat .stat-label {
  font-size: 0.8125rem;
  color: var(--text-muted);
  margin-top: 0.25rem;
}

/* Section Common */
.section {
  padding: 4rem 0;
}

.section-header {
  text-align: center;
  margin-bottom: 3rem;
}

.section-header h2 {
  position: relative;
  display: inline-block;
  padding-bottom: 0.75rem;
}

.section-header h2::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 60px;
  height: 3px;
  background: var(--gradient-primary);
  border-radius: 2px;
}

.section-header p {
  margin-top: 0.75rem;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

/* Core Advantages */
.advantages-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.advantage-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 2rem;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.advantage-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--gradient-primary);
  opacity: 0;
  transition: var(--transition);
}

.advantage-card:hover {
  background: var(--bg-card-hover);
  box-shadow: var(--shadow-glow);
  transform: translateY(-4px);
}

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

.advantage-icon {
  width: 52px;
  height: 52px;
  background: rgba(6, 214, 160, 0.1);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: 1.25rem;
}

.advantage-card:nth-child(2) .advantage-icon {
  background: rgba(59, 130, 246, 0.1);
}

.advantage-card:nth-child(3) .advantage-icon {
  background: rgba(139, 92, 246, 0.1);
}

/* Article Cards */
.articles-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.article-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: var(--transition);
}

.article-card:hover {
  box-shadow: var(--shadow-card);
  transform: translateY(-3px);
}

.article-card .card-img {
  width: 100%;
  height: 180px;
  object-fit: cover;
  background: var(--bg-secondary);
}

.article-card .card-body {
  padding: 1.25rem;
}

.article-card .card-date {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-bottom: 0.5rem;
}

.article-card .card-title {
  font-size: 1.0625rem;
  margin-bottom: 0.625rem;
  line-height: 1.4;
}

.article-card .card-title a {
  color: var(--text-primary);
}

.article-card .card-title a:hover {
  color: var(--accent-cyan);
}

.article-card .card-excerpt {
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

.article-card .card-tag {
  display: inline-block;
  padding: 0.2rem 0.6rem;
  background: rgba(6, 214, 160, 0.1);
  color: var(--accent-cyan);
  border-radius: 4px;
  font-size: 0.75rem;
  margin-top: 0.75rem;
}

/* Dashboard */
.dashboard-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
  margin-bottom: 2rem;
}

.dash-metric {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1.25rem;
  text-align: center;
}

.dash-metric .metric-value {
  font-size: 1.75rem;
  font-weight: 800;
  font-family: var(--font-mono);
  color: var(--accent-cyan);
}

.dash-metric .metric-label {
  font-size: 0.8125rem;
  color: var(--text-muted);
  margin-top: 0.25rem;
}

.dash-metric.pass .metric-value { color: var(--accent-cyan); }
.dash-metric.warn .metric-value { color: var(--accent-amber); }
.dash-metric.info .metric-value { color: var(--accent-blue); }

.chart-container {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  margin-bottom: 1.5rem;
}

.chart-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
}

/* World Map */
.world-map-container {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 2rem;
  position: relative;
  min-height: 400px;
}

.map-svg-wrap {
  width: 100%;
  max-width: 900px;
  margin: 0 auto;
}

.map-region {
  cursor: pointer;
  transition: var(--transition);
  fill: #1e293b;
  stroke: #374151;
  stroke-width: 0.5;
}

.map-region:hover {
  fill: rgba(6, 214, 160, 0.3);
}

.map-region.active {
  fill: rgba(6, 214, 160, 0.5);
}

.map-tooltip {
  position: absolute;
  background: var(--bg-card);
  border: 1px solid var(--accent-cyan);
  border-radius: var(--radius-sm);
  padding: 0.75rem 1rem;
  font-size: 0.8125rem;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.2s;
  z-index: 10;
  min-width: 180px;
}

.map-tooltip.visible {
  opacity: 1;
}

/* Ecosystem Graph */
.ecosystem-graph {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 2rem;
  min-height: 450px;
  position: relative;
}

.eco-node {
  position: absolute;
  background: var(--bg-secondary);
  border: 2px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 0.75rem 1.25rem;
  text-align: center;
  transition: var(--transition);
  cursor: pointer;
  z-index: 2;
}

.eco-node:hover {
  border-color: var(--accent-cyan);
  box-shadow: var(--shadow-glow);
  transform: scale(1.05);
}

.eco-node.center {
  background: var(--gradient-primary);
  color: #0a0e1a;
  font-weight: 700;
  border: none;
  font-size: 1.125rem;
  padding: 1rem 1.5rem;
}

.eco-node .node-label {
  font-size: 0.8125rem;
  color: var(--text-secondary);
  margin-top: 0.25rem;
}

.eco-node.center .node-label {
  color: rgba(10, 14, 26, 0.7);
}

.eco-line {
  position: absolute;
  background: var(--border-color);
  z-index: 1;
}

/* Featured Topics */
.featured-grid {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 1.5rem;
}

.featured-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  overflow: hidden;
  position: relative;
  min-height: 280px;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  transition: var(--transition);
}

.featured-card:hover {
  box-shadow: var(--shadow-card);
}

.featured-card .featured-bg {
  position: absolute;
  inset: 0;
  background: var(--bg-secondary);
  z-index: 0;
}

.featured-card .featured-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(10,14,26,0.95) 0%, transparent 60%);
  z-index: 1;
}

.featured-card .featured-body {
  position: relative;
  z-index: 2;
  padding: 1.5rem;
}

.featured-card .featured-tag {
  display: inline-block;
  padding: 0.2rem 0.6rem;
  background: rgba(245, 158, 11, 0.2);
  color: var(--accent-amber);
  border-radius: 4px;
  font-size: 0.75rem;
  margin-bottom: 0.5rem;
}

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

.faq-item {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  margin-bottom: 0.75rem;
  overflow: hidden;
}

.faq-question {
  padding: 1.25rem 1.5rem;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-weight: 600;
  transition: var(--transition);
}

.faq-question:hover {
  background: var(--bg-card-hover);
}

.faq-question .faq-icon {
  font-size: 1.25rem;
  color: var(--accent-cyan);
  transition: var(--transition);
  flex-shrink: 0;
  margin-left: 1rem;
}

.faq-item.open .faq-icon {
  transform: rotate(45deg);
}

.faq-answer {
  padding: 0 1.5rem;
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease, padding 0.4s ease;
}

.faq-item.open .faq-answer {
  padding: 0 1.5rem 1.25rem;
  max-height: 500px;
}

.faq-answer p {
  font-size: 0.9375rem;
  line-height: 1.7;
}

/* About Section */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
}

.about-features {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin-top: 1.5rem;
}

.about-feature {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 1rem;
}

.about-feature .feat-title {
  font-size: 0.9375rem;
  font-weight: 600;
  margin-bottom: 0.25rem;
}

.about-feature .feat-desc {
  font-size: 0.8125rem;
  color: var(--text-muted);
  margin: 0;
}

/* Footer */
.site-footer {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-color);
  padding: 3rem 0 1.5rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 2rem;
  margin-bottom: 2rem;
}

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

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

.footer-col ul li {
  margin-bottom: 0.5rem;
}

.footer-col ul li a {
  color: var(--text-muted);
  font-size: 0.875rem;
}

.footer-col ul li a:hover {
  color: var(--accent-cyan);
}

.footer-about p {
  font-size: 0.875rem;
  color: var(--text-muted);
  margin-bottom: 1rem;
}

.footer-social {
  display: flex;
  gap: 0.75rem;
}

.footer-social a {
  width: 36px;
  height: 36px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  font-size: 0.875rem;
  transition: var(--transition);
}

.footer-social a:hover {
  border-color: var(--accent-cyan);
  color: var(--accent-cyan);
}

.footer-bottom {
  border-top: 1px solid var(--border-color);
  padding-top: 1.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
}

.footer-bottom p {
  font-size: 0.8125rem;
  color: var(--text-muted);
  margin: 0;
}

.age-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.375rem 0.75rem;
  background: rgba(239, 68, 68, 0.1);
  border: 1px solid rgba(239, 68, 68, 0.3);
  border-radius: var(--radius-sm);
  color: var(--accent-red);
  font-size: 0.8125rem;
  font-weight: 700;
}

/* Breadcrumb */
.breadcrumb {
  padding: 1rem 0;
  font-size: 0.8125rem;
}

.breadcrumb ol {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem;
}

.breadcrumb li::after {
  content: '/';
  margin-left: 0.5rem;
  color: var(--text-muted);
}

.breadcrumb li:last-child::after {
  display: none;
}

.breadcrumb a {
  color: var(--text-muted);
}

.breadcrumb a:hover {
  color: var(--accent-cyan);
}

.breadcrumb .current {
  color: var(--text-secondary);
}

/* Article Page */
.article-page {
  padding: 2rem 0 4rem;
}

.article-header {
  max-width: 800px;
  margin: 0 auto 2rem;
  text-align: center;
}

.article-header h1 {
  font-size: 2.25rem;
  margin-bottom: 1rem;
}

.article-meta {
  display: flex;
  justify-content: center;
  gap: 1.5rem;
  font-size: 0.875rem;
  color: var(--text-muted);
}

.article-content {
  max-width: 800px;
  margin: 0 auto;
}

.article-content h2 {
  margin-top: 2.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border-color);
}

.article-content h3 {
  margin-top: 2rem;
}

.article-content p {
  font-size: 1rem;
  line-height: 1.85;
  margin-bottom: 1.25rem;
}

.article-content ul, .article-content ol {
  margin-bottom: 1.25rem;
  padding-left: 1.5rem;
}

.article-content li {
  margin-bottom: 0.5rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

.article-content pre {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 1.25rem;
  overflow-x: auto;
  margin-bottom: 1.5rem;
  font-family: var(--font-mono);
  font-size: 0.875rem;
  line-height: 1.6;
  color: var(--accent-cyan);
}

.article-content code {
  background: var(--bg-secondary);
  padding: 0.15rem 0.4rem;
  border-radius: 3px;
  font-family: var(--font-mono);
  font-size: 0.875em;
  color: var(--accent-amber);
}

.article-content pre code {
  background: none;
  padding: 0;
  color: var(--accent-cyan);
}

.article-content blockquote {
  border-left: 3px solid var(--accent-cyan);
  background: rgba(6, 214, 160, 0.05);
  padding: 1rem 1.5rem;
  margin: 1.5rem 0;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}

.article-content blockquote p {
  color: var(--text-primary);
  margin: 0;
}

.article-content table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: 1.5rem;
}

.article-content th, .article-content td {
  padding: 0.75rem 1rem;
  border: 1px solid var(--border-color);
  text-align: left;
  font-size: 0.9375rem;
}

.article-content th {
  background: var(--bg-card);
  font-weight: 600;
}

.article-content td {
  color: var(--text-secondary);
}

.article-content .img-wrap {
  margin: 1.5rem 0;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--border-color);
}

.article-content .img-caption {
  text-align: center;
  font-size: 0.8125rem;
  color: var(--text-muted);
  padding: 0.5rem;
  background: var(--bg-card);
}

/* Sidebar */
.page-with-sidebar {
  display: grid;
  grid-template-columns: 1fr 300px;
  gap: 2rem;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.5rem;
}

.sidebar {
  position: relative;
}

.sidebar-widget {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1.25rem;
  margin-bottom: 1.5rem;
}

.sidebar-widget h4 {
  font-size: 0.9375rem;
  margin-bottom: 1rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--border-color);
}

.sidebar-widget ul {
  list-style: none;
}

.sidebar-widget ul li {
  margin-bottom: 0.5rem;
}

.sidebar-widget ul li a {
  color: var(--text-secondary);
  font-size: 0.875rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.sidebar-widget ul li a:hover {
  color: var(--accent-cyan);
}

/* App Download Page */
.app-hero {
  text-align: center;
  padding: 4rem 0;
}

.app-buttons {
  display: flex;
  justify-content: center;
  gap: 1rem;
  margin-top: 2rem;
}

.app-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.875rem 1.5rem;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-size: 1rem;
  font-weight: 600;
  transition: var(--transition);
}

.app-btn:hover {
  border-color: var(--accent-cyan);
  box-shadow: var(--shadow-glow);
  color: var(--text-primary);
}

.app-btn .btn-icon {
  font-size: 1.5rem;
}

.app-features {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  margin-top: 3rem;
}

.app-feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  text-align: center;
}

/* CTA Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius-sm);
  font-size: 0.9375rem;
  font-weight: 600;
  transition: var(--transition);
  border: none;
  cursor: pointer;
}

.btn-primary {
  background: var(--gradient-primary);
  color: #0a0e1a;
}

.btn-primary:hover {
  box-shadow: var(--shadow-glow);
  color: #0a0e1a;
  transform: translateY(-2px);
}

.btn-outline {
  background: transparent;
  border: 1px solid var(--accent-cyan);
  color: var(--accent-cyan);
}

.btn-outline:hover {
  background: rgba(6, 214, 160, 0.1);
  color: var(--accent-cyan);
}

/* Responsive */
@media (max-width: 1024px) {
  .advantages-grid,
  .articles-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
  .page-with-sidebar {
    grid-template-columns: 1fr;
  }
  .featured-grid {
    grid-template-columns: 1fr;
  }
  .about-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  html { font-size: 15px; }
  h1 { font-size: 2rem; }
  h2 { font-size: 1.5rem; }
  .hero h1 { font-size: 2.25rem; }
  .hero { padding: 3rem 0; }
  .section { padding: 3rem 0; }

  .mobile-toggle { display: flex; }

  .nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--bg-primary);
    border-bottom: 1px solid var(--border-color);
    flex-direction: column;
    padding: 1rem;
  }

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

  .site-nav { position: relative; }

  .advantages-grid,
  .articles-grid,
  .app-features {
    grid-template-columns: 1fr;
  }

  .dashboard-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .chart-row {
    grid-template-columns: 1fr;
  }

  .hero-stats {
    gap: 1.5rem;
  }

  .hero-stat .stat-num {
    font-size: 1.75rem;
  }

  .footer-grid {
    grid-template-columns: 1fr;
  }

  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }

  .about-features {
    grid-template-columns: 1fr;
  }

  .app-buttons {
    flex-direction: column;
    align-items: center;
  }
}

@media (max-width: 480px) {
  .hero h1 { font-size: 1.75rem; }
  .container { padding: 0 1rem; }
  .hero-stats { flex-direction: column; gap: 1rem; }
  .dashboard-grid { grid-template-columns: 1fr; }
}

/* Utility */
.text-cyan { color: var(--accent-cyan); }
.text-amber { color: var(--accent-amber); }
.text-blue { color: var(--accent-blue); }
.text-purple { color: var(--accent-purple); }
.bg-alt { background: var(--bg-secondary); }
.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }

/* Loading animation */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

.animate-in {
  animation: fadeInUp 0.6s ease forwards;
}

/* Print */
@media print {
  .site-nav, .site-footer, .jammer-block { display: none; }
  body { background: #fff; color: #000; }
}