:root {
  --primary: #1a73e8;
  --primary-hover: #1557b0;
  --text-main: #202124;
  --text-muted: #5f6368;
  --bg-main: #ffffff;
  --bg-light: #f8f9fa;
  --border: #dadce0;
  --border-light: #e8eaed;
  --radius: 8px;
  --radius-lg: 16px;
  --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);
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  color: var(--text-main);
  background-color: var(--bg-main);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

ul {
  list-style: none;
}

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

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

.bg-light {
  background-color: var(--bg-light);
}

.highlight {
  color: var(--primary);
}

/* BUTTONS */
.btn {
  display: inline-block;
  padding: 10px 20px;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: 14px;
  text-align: center;
  transition: all 0.2s ease;
  cursor: pointer;
  border: 1px solid transparent;
}

.btn-large {
  padding: 14px 28px;
  font-size: 16px;
}

.btn-full {
  width: 100%;
}

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

.btn-primary:hover {
  background-color: var(--primary-hover);
  transform: translateY(-1px);
  box-shadow: var(--shadow);
}

.btn-outline {
  background-color: transparent;
  color: var(--text-main);
  border-color: var(--border);
}

.btn-outline:hover {
  border-color: var(--text-main);
  background-color: var(--bg-light);
}

/* NAVBAR */
.navbar {
  border-bottom: 1px solid var(--border-light);
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  position: sticky;
  top: 0;
  z-index: 100;
}

.nav-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 70px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 700;
  font-size: 20px;
  letter-spacing: -0.5px;
}

.nav-links {
  display: flex;
  gap: 32px;
}

.nav-links a {
  font-weight: 500;
  color: var(--text-muted);
  font-size: 14px;
  transition: color 0.2s;
}

.nav-links a:hover {
  color: var(--text-main);
}

.nav-actions {
  display: flex;
  gap: 12px;
  align-items: center;
}

.mobile-menu-btn {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
}

/* HERO SECTION */
.hero {
  padding: 80px 0 100px;
}

.hero-container {
  display: flex;
  align-items: center;
  gap: 60px;
}

.hero-content {
  flex: 1;
}

.hero-image {
  flex: 1;
}

.badge {
  display: inline-block;
  background-color: #e8f0fe;
  color: var(--primary);
  padding: 6px 12px;
  border-radius: 20px;
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 24px;
}

.hero h1 {
  font-size: 48px;
  line-height: 1.1;
  font-weight: 800;
  letter-spacing: -1.5px;
  margin-bottom: 20px;
}

.hero p {
  font-size: 18px;
  color: var(--text-muted);
  margin-bottom: 32px;
  max-width: 500px;
}

.hero-cta {
  display: flex;
  gap: 16px;
  margin-bottom: 24px;
}

.rating {
  display: flex;
  align-items: center;
  gap: 8px;
}

.stars {
  color: #fbbc04;
  font-size: 18px;
  letter-spacing: 2px;
}

.rating-text {
  font-size: 13px;
  color: var(--text-muted);
  font-weight: 500;
}

.browser-mockup {
  background: #fff;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
}

.browser-header {
  background: var(--bg-light);
  padding: 12px 16px;
  display: flex;
  gap: 8px;
  border-bottom: 1px solid var(--border);
}

.dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
}
.dot.red { background: #ff5f56; }
.dot.yellow { background: #ffbd2e; }
.dot.green { background: #27c93f; }

.browser-body {
  padding: 0;
  height: 350px;
  background: #f8f9fa;
  display: flex;
  align-items: center;
  justify-content: center;
}

.mockup-placeholder {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  color: var(--text-muted);
  font-weight: 500;
}

.mockup-placeholder svg {
  width: 64px;
  height: 64px;
}

/* QUICK FEATURES */
.quick-features {
  padding: 80px 0;
  border-top: 1px solid var(--border-light);
  border-bottom: 1px solid var(--border-light);
}

.grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
}

.feature-card {
  background: #fff;
  padding: 32px 24px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-light);
  box-shadow: var(--shadow);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.feature-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
}

.icon-box {
  width: 48px;
  height: 48px;
  background: #e8f0fe;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  margin-bottom: 20px;
}

.feature-card h3 {
  font-size: 18px;
  margin-bottom: 12px;
  font-weight: 700;
}

.feature-card p {
  color: var(--text-muted);
  font-size: 14px;
  line-height: 1.5;
}

/* DETAILED FEATURES */
.detailed-features {
  padding: 100px 0;
}

.section-title {
  margin-bottom: 60px;
}

.section-title h2 {
  font-size: 36px;
  font-weight: 800;
  letter-spacing: -1px;
  margin-bottom: 16px;
}

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

.feature-row {
  display: flex;
  align-items: center;
  gap: 80px;
  margin-bottom: 100px;
}

.feature-row:last-child {
  margin-bottom: 0;
}

.feature-row.reverse {
  flex-direction: row-reverse;
}

.feature-text {
  flex: 1;
}

.feature-text h3 {
  font-size: 28px;
  font-weight: 700;
  margin-bottom: 16px;
  letter-spacing: -0.5px;
}

.feature-text p {
  font-size: 16px;
  color: var(--text-muted);
  margin-bottom: 24px;
}

.check-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.check-list li {
  position: relative;
  padding-left: 32px;
  font-weight: 500;
  color: var(--text-main);
}

.check-list li::before {
  content: '✓';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 20px;
  height: 20px;
  background-color: #e8f0fe;
  color: var(--primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  font-weight: bold;
}

.feature-visual {
  flex: 1;
}

.visual-box {
  background: var(--bg-light);
  height: 300px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  font-weight: 600;
  box-shadow: var(--shadow-lg);
}

/* PRICING */
.pricing {
  padding: 100px 0;
  border-top: 1px solid var(--border-light);
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
  max-width: 1000px;
  margin: 0 auto;
}

.price-card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 40px 32px;
  position: relative;
  transition: transform 0.3s;
}

.price-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
}

.price-card.popular {
  border: 2px solid var(--primary);
  box-shadow: var(--shadow-lg);
}

.badge-popular {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--primary);
  color: #fff;
  padding: 4px 12px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
}

.plan-name {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 16px;
}

.plan-price {
  font-size: 40px;
  font-weight: 800;
  margin-bottom: 8px;
}

.plan-price span {
  font-size: 16px;
  color: var(--text-muted);
  font-weight: 500;
}

.plan-desc {
  color: var(--text-muted);
  font-size: 14px;
  margin-bottom: 24px;
  min-height: 42px;
}

.plan-features {
  margin-bottom: 32px;
}

.plan-features li {
  padding: 12px 0;
  border-bottom: 1px solid var(--border-light);
  color: var(--text-muted);
  font-size: 14px;
}

.plan-features li:last-child {
  border-bottom: none;
}

/* FAQ */
.faq {
  padding: 100px 0;
}

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

.faq-item {
  border-bottom: 1px solid var(--border-light);
  padding: 24px 0;
}

.faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
}

.faq-question h4 {
  font-size: 18px;
  font-weight: 600;
}

.faq-question .icon {
  font-size: 24px;
  font-weight: 300;
  color: var(--text-muted);
  transition: transform 0.3s;
}

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

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

.faq-answer p {
  padding-top: 16px;
  color: var(--text-muted);
  line-height: 1.6;
}

/* CTA BANNER */
.cta-banner {
  background-color: var(--bg-light);
  padding: 80px 0;
  border-top: 1px solid var(--border-light);
}

.cta-banner h2 {
  font-size: 32px;
  font-weight: 800;
  margin-bottom: 16px;
}

.cta-banner p {
  color: var(--text-muted);
  font-size: 18px;
  margin-bottom: 32px;
}

/* FOOTER */
.footer {
  padding: 80px 0 40px;
  border-top: 1px solid var(--border);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 60px;
}

.footer-brand .logo {
  margin-bottom: 16px;
}

.footer-brand p {
  color: var(--text-muted);
  font-size: 14px;
  max-width: 250px;
}

.footer-links h4 {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 20px;
}

.footer-links a {
  display: block;
  color: var(--text-muted);
  font-size: 14px;
  margin-bottom: 12px;
  transition: color 0.2s;
}

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

.footer-bottom {
  text-align: center;
  padding-top: 40px;
  border-top: 1px solid var(--border-light);
  color: var(--text-muted);
  font-size: 14px;
}

/* RESPONSIVE */
@media (max-width: 992px) {
  .hero-container, .feature-row, .feature-row.reverse {
    flex-direction: column;
    text-align: center;
  }
  .hero h1 { font-size: 40px; }
  .hero-cta { justify-content: center; }
  .grid-4, .pricing-grid { grid-template-columns: repeat(2, 1fr); }
  .check-list li { padding-left: 0; }
  .check-list li::before { display: none; }
  .feature-visual { width: 100%; }
}

@media (max-width: 768px) {
  .nav-links, .nav-actions { display: none; }
  .mobile-menu-btn { display: block; }
  .grid-4, .pricing-grid, .footer-grid { grid-template-columns: 1fr; }
}