:root {
  --primary: #f05a28; /* WPS Coral */
  --primary-glow: rgba(240, 90, 40, 0.2);
  --secondary: #1e293b; /* Slate */
  --accent: #8b5cf6; /* Violet */
  --bg: #ffffff;
  --bg-alt: #f8fafc;
  --text: #0f172a;
  --text-muted: #64748b;
  --border: #e2e8f0;
  --radius: 12px;
  --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

body {
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  overflow-x: hidden;
}

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

ul {
  list-style: none;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

/* Animations */
@keyframes spin { from { transform: rotate(0deg); } to { transform: rotate(360deg); } }
@keyframes fadeIn { from { opacity: 0; transform: translateY(20px); } to { opacity: 1; transform: translateY(0); } }

/* Navbar */
.nav {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.8);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
  height: 70px;
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.logo {
  display: flex;
  align-items: center;
  font-size: 24px;
  font-weight: 800;
  color: var(--primary);
  gap: 10px;
}

.nav-links {
  display: flex;
  gap: 30px;
}

.nav-link {
  font-weight: 500;
  color: var(--text-muted);
  transition: color 0.3s;
  padding: 5px 0;
  position: relative;
}

.nav-link:hover {
  color: var(--primary);
}

.nav-link.active {
  color: var(--primary);
}

.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--primary);
  border-radius: 2px;
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  color: var(--text);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 24px;
  border-radius: var(--radius);
  font-weight: 600;
  transition: all 0.3s;
  cursor: pointer;
  border: none;
  gap: 8px;
}

.btn-primary {
  background: var(--primary);
  color: white;
}

.btn-primary:hover {
  background: #d94b1b;
  transform: translateY(-2px);
  box-shadow: 0 4px 12px var(--primary-glow);
}

.btn-outline {
  background: transparent;
  border: 2px solid var(--primary);
  color: var(--primary);
}

.btn-outline:hover {
  background: var(--primary);
  color: white;
}

.btn-lg {
  padding: 16px 32px;
  font-size: 18px;
}

/* Hero */
.hero {
  padding: 100px 0;
  background: radial-gradient(circle at 70% 30%, #fff5f2 0%, #ffffff 100%);
  text-align: center;
  overflow: hidden;
}

.hero-tag {
  display: inline-block;
  background: var(--primary-glow);
  color: var(--primary);
  padding: 8px 16px;
  border-radius: 20px;
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 24px;
  animation: fadeIn 0.8s ease-out;
}

.hero-h1 {
  font-size: 56px;
  line-height: 1.1;
  font-weight: 800;
  margin-bottom: 24px;
  color: var(--secondary);
  animation: fadeIn 0.8s ease-out 0.1s both;
}

.hero-p {
  font-size: 20px;
  color: var(--text-muted);
  max-width: 800px;
  margin: 0 auto 40px;
  animation: fadeIn 0.8s ease-out 0.2s both;
}

.hero-btns {
  display: flex;
  justify-content: center;
  gap: 20px;
  animation: fadeIn 0.8s ease-out 0.3s both;
}

/* Feature Cards */
.sec {
  padding: 100px 0;
}

.sec-head {
  text-align: center;
  margin-bottom: 60px;
}

.sec-title {
  font-size: 36px;
  font-weight: 800;
  margin-bottom: 16px;
}

.sec-sub {
  color: var(--text-muted);
  font-size: 18px;
  max-width: 600px;
  margin: 0 auto;
}

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

.feat-card {
  background: white;
  padding: 40px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  transition: all 0.3s;
}

.feat-card:hover {
  transform: translateY(-10px);
  box-shadow: var(--shadow-lg);
  border-color: var(--primary-glow);
}

.feat-icon {
  width: 64px;
  height: 64px;
  background: var(--bg-alt);
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 24px;
  color: var(--primary);
}

.feat-name {
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 12px;
}

.feat-desc {
  color: var(--text-muted);
}

/* Platforms */
.plat-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.plat-card {
  background: var(--bg-alt);
  padding: 30px;
  border-radius: var(--radius);
  text-align: center;
  transition: all 0.3s;
}

.plat-card:hover {
  background: white;
  box-shadow: var(--shadow);
}

.plat-icon {
  width: 48px;
  height: 48px;
  margin: 0 auto 20px;
  color: var(--secondary);
}

.plat-name {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 8px;
}

.plat-ver {
  font-size: 14px;
  color: var(--text-muted);
  margin-bottom: 20px;
}

/* Content Rows */
.row {
  display: flex;
  align-items: center;
  gap: 60px;
  margin-bottom: 80px;
}

.row:nth-child(even) {
  flex-direction: row-reverse;
}

.row-text {
  flex: 1;
}

.row-title {
  font-size: 32px;
  font-weight: 800;
  margin-bottom: 20px;
}

.row-desc {
  font-size: 18px;
  color: var(--text-muted);
}

.row-vis {
  flex: 1;
  background: var(--bg-alt);
  height: 350px;
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
}

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

.rev-card {
  background: white;
  padding: 30px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
}

.rev-header {
  display: flex;
  align-items: center;
  gap: 15px;
  margin-bottom: 20px;
}

.rev-avatar {
  width: 50px;
  height: 50px;
  border-radius: 50%;
  background: var(--bg-alt);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  color: var(--primary);
}

.rev-stars {
  color: #fbbf24;
  margin-bottom: 15px;
}

.rev-text {
  font-style: italic;
  color: var(--text-muted);
}

/* Comparison */
.cmp-table-wrap {
  overflow-x: auto;
}

.cmp-table {
  width: 100%;
  border-collapse: collapse;
}

.cmp-table th, .cmp-table td {
  padding: 20px;
  border-bottom: 1px solid var(--border);
  text-align: center;
}

.cmp-table th:first-child, .cmp-table td:first-child {
  text-align: left;
}

.cmp-table th {
  background: var(--bg-alt);
  font-weight: 700;
}

.cmp-hl {
  color: var(--primary);
  font-weight: 700;
}

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

.faq-item {
  border-bottom: 1px solid var(--border);
}

.faq-q {
  padding: 24px 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
  font-weight: 700;
  font-size: 18px;
}

.faq-q:hover {
  color: var(--primary);
}

.faq-a {
  max-height: 0;
  overflow: hidden;
  transition: all 0.3s ease-out;
}

.faq-item.open .faq-a {
  max-height: 200px;
  padding-bottom: 24px;
}

/* Footer */
.footer {
  background: var(--secondary);
  color: white;
  padding: 80px 0 40px;
}

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

.footer-security {
  background: rgba(255, 255, 255, 0.1);
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 10px 20px;
  border-radius: 30px;
  margin-bottom: 30px;
  font-size: 14px;
}

.footer-disclaimer {
  color: rgba(255, 255, 255, 0.5);
  font-size: 13px;
  margin-top: 40px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 40px;
}

/* Stats */
.stats-strip {
  background: var(--primary);
  color: white;
  padding: 60px 0;
  text-align: center;
}

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

.stat-item h3 {
  font-size: 40px;
  font-weight: 800;
  margin-bottom: 5px;
}

.stat-item p {
  opacity: 0.9;
  font-size: 14px;
  text-transform: uppercase;
  letter-spacing: 1px;
}

/* CTA */
.cta {
  background: linear-gradient(135deg, var(--primary) 0%, #fb923c 100%);
  padding: 80px 0;
  color: white;
  text-align: center;
}

.cta h2 {
  font-size: 40px;
  margin-bottom: 20px;
}

.cta p {
  font-size: 18px;
  margin-bottom: 40px;
  opacity: 0.9;
}

/* Responsive */
@media (max-width: 992px) {
  .hero-h1 { font-size: 40px; }
  .feat-grid { grid-template-columns: repeat(2, 1fr); }
  .plat-grid { grid-template-columns: repeat(2, 1fr); }
  .rev-grid { grid-template-columns: repeat(2, 1fr); }
  .row { flex-direction: column !important; gap: 30px; }
}

@media (max-width: 768px) {
  .nav-links {
    display: none;
    position: absolute;
    top: 70px;
    left: 0;
    width: 100%;
    background: white;
    flex-direction: column;
    padding: 20px;
    border-bottom: 1px solid var(--border);
  }
  .nav-links.show { display: flex; }
  .nav-toggle { display: block; }
  .feat-grid { grid-template-columns: 1fr; }
  .plat-grid { grid-template-columns: 1fr; }
  .rev-grid { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 30px; }
}

/* Download Page Specific */
.dl-hero {
  background: #f1f5f9;
  padding: 80px 0;
}

.dl-main-card {
  background: white;
  padding: 50px;
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  display: flex;
  align-items: center;
  gap: 50px;
  margin-top: -50px;
}

.dl-main-info { flex: 1; }
.dl-main-visual { flex: 1; text-align: center; }

.dl-step-list {
  margin-top: 40px;
}

.dl-step {
  display: flex;
  gap: 20px;
  margin-bottom: 30px;
}

.dl-step-n {
  width: 36px;
  height: 36px;
  background: var(--primary);
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-weight: 700;
}

/* Article Page Specific */
.art-layout {
  display: grid;
  grid-template-columns: 1fr 300px;
  gap: 50px;
  padding: 80px 0;
}

.art-body h2 {
  font-size: 28px;
  margin: 40px 0 20px;
}

.art-body p {
  margin-bottom: 20px;
  color: var(--text-muted);
}

.sidebar {
  position: sticky;
  top: 100px;
}

.side-box {
  background: var(--bg-alt);
  padding: 24px;
  border-radius: var(--radius);
  margin-bottom: 30px;
}

.side-title {
  font-weight: 700;
  margin-bottom: 15px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--border);
}

.kw-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.kw {
  background: white;
  padding: 5px 12px;
  border-radius: 4px;
  font-size: 13px;
  border: 1px solid var(--border);
}