:root {
  --bg: #f6f8fb;
  --surface: #ffffff;
  --ink: #1b1f2a;
  --muted: #4a5568;
  --primary: #1b6ef3;
  --primary-dark: #0e4fc1;
  --accent: #e3f2ff;
  --border: #e2e8f0;
  --success: #1f9d55;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: "Segoe UI", "Inter", system-ui, -apple-system, sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.6;
}

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

a { color: var(--primary); text-decoration: none; }

a:hover { color: var(--primary-dark); }

.container {
  width: min(1200px, 92vw);
  margin: 0 auto;
}

.header {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 10;
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 16px 0;
}

.nav-links {
  display: flex;
  gap: 18px;
  font-weight: 600;
  flex-wrap: wrap;
}

.nav-links .menu {
  display: flex;
  gap: 18px;
  list-style: none;
  margin: 0;
  padding: 0;
  flex-wrap: wrap;
}

.hero {
  padding: 70px 0 40px;
  background: linear-gradient(135deg, #ffffff 0%, #eef6ff 100%);
}

.hero-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 40px;
  align-items: center;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 12px;
  border-radius: 999px;
  background: var(--accent);
  color: var(--primary);
  font-weight: 600;
  margin-bottom: 14px;
}

.hero h1 {
  font-size: clamp(2.4rem, 4vw, 3.3rem);
  margin: 0 0 14px;
}

.hero p {
  color: var(--muted);
  font-size: 1.05rem;
}

.cta-row {
  margin-top: 24px;
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 20px;
  border-radius: 8px;
  border: 1px solid var(--primary);
  font-weight: 600;
  background: var(--primary);
  color: #fff;
}

.button.secondary {
  background: transparent;
  color: var(--primary);
}

.section {
  padding: 60px 0;
}

.section-title {
  text-align: center;
  margin-bottom: 32px;
}

.section-title h2 {
  margin: 0 0 8px;
  font-size: clamp(1.8rem, 3vw, 2.4rem);
}

.section-title p {
  margin: 0 auto;
  max-width: 720px;
  color: var(--muted);
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 24px;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 24px;
  box-shadow: 0 10px 30px rgba(17, 24, 39, 0.05);
}

.card h3 {
  margin-top: 0;
}

.feature-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 12px 24px;
  list-style: none;
  padding: 0;
  margin: 0;
}

.feature-list li {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 12px 14px;
}

.iframe-wrap {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 18px;
  box-shadow: 0 15px 30px rgba(17, 24, 39, 0.08);
}

.iframe-wrap iframe {
  width: 100%;
  min-height: 560px;
  border: none;
  border-radius: 12px;
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 20px;
}

.pricing-card {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.price-tag {
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--primary);
}

.save-tag {
  font-size: 0.95rem;
  font-weight: 600;
  color: #0f766e;
  background: #e6fffb;
  border: 1px solid #b9f5ec;
  border-radius: 999px;
  padding: 4px 10px;
  width: fit-content;
}

.screenshots {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 20px;
}

.lightbox-target {
  cursor: zoom-in;
}

.caption {
  font-size: 0.95rem;
  color: var(--muted);
  margin-top: 8px;
}

.lightbox {
  position: fixed;
  inset: 0;
  background: rgba(10, 14, 22, 0.82);
  display: none;
  align-items: center;
  justify-content: center;
  padding: 24px;
  z-index: 9999;
}

.lightbox.open {
  display: flex;
}

.lightbox img {
  max-width: min(1200px, 92vw);
  max-height: 90vh;
  border-radius: 12px;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.35);
}

.lightbox-close {
  position: absolute;
  top: 20px;
  right: 24px;
  font-size: 32px;
  line-height: 1;
  border: none;
  background: transparent;
  color: #ffffff;
  cursor: pointer;
}

.footer {
  background: #101827;
  color: #cbd5f5;
  padding: 40px 0;
}

.footer a { color: #ffffff; }

.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 24px;
}

.footer h3,
.footer h4 {
  margin: 0 0 10px;
}

.footer p {
  margin: 6px 0;
}

.footer ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.footer li {
  margin: 6px 0;
}

.notice {
  background: #eefdf4;
  border: 1px solid #c6f6d5;
  color: #207a43;
  padding: 14px 18px;
  border-radius: 12px;
  margin: 24px 0 0;
  font-weight: 600;
}

.box {
  background: #f9f9f9;
  padding: 15px;
  border-left: 5px solid #3498db;
  margin: 20px 0;
}

.pricing-table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 20px;
  background: var(--surface);
}

.pricing-table th,
.pricing-table td {
  border: 1px solid #ddd;
  padding: 12px;
  text-align: left;
}

.pricing-table th {
  background-color: #f2f2f2;
}

@media (max-width: 760px) {
  .nav { flex-direction: column; align-items: flex-start; }
  .hero { padding-top: 50px; }
  .iframe-wrap iframe { min-height: 440px; }
}