:root {
  color-scheme: light dark;
  --bg: #eef3fb;
  --card: #ffffff;
  --text: #141820;
  --muted: #5c6570;
  --blue: #0078ff;
  --cyan: #00b4ff;
  --border: #e2e8f0;
  --shadow: 0 4px 24px rgba(0, 120, 255, 0.08);
  --radius: 16px;
  --hero-grad: linear-gradient(135deg, #0078ff 0%, #0056d6 45%, #00b4ff 100%);
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #080a0f;
    --card: #141820;
    --text: #eef2f7;
    --muted: #9aa3b2;
    --border: #252b38;
    --shadow: 0 4px 28px rgba(0, 0, 0, 0.45);
    --hero-grad: linear-gradient(135deg, #0078ff 0%, #003d8f 50%, #00b4ff 100%);
  }
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  line-height: 1.65;
  color: var(--text);
  background: var(--bg);
  min-height: 100vh;
}

a {
  color: var(--blue);
}

.wrap {
  max-width: 760px;
  margin: 0 auto;
  padding: 0 1.25rem 3rem;
}

.top-link {
  display: inline-flex;
  margin: 1.25rem 0 0;
  color: var(--muted);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
}

.top-link:hover {
  color: var(--blue);
}

.hero {
  margin: 0 -1.25rem 2rem;
  padding: 2.5rem 1.5rem 2.75rem;
  background: var(--hero-grad);
  color: #fff;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.hero::before,
.hero::after {
  content: "";
  position: absolute;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.08);
}

.hero::before {
  width: 220px;
  height: 220px;
  top: -80px;
  right: -50px;
}

.hero::after {
  width: 160px;
  height: 160px;
  bottom: -60px;
  left: -40px;
}

.hero-inner {
  position: relative;
  z-index: 1;
}

.logo-mark {
  width: 72px;
  height: 72px;
  margin: 0 auto 1rem;
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.2);
  border: 1px solid rgba(255, 255, 255, 0.35);
  display: grid;
  place-items: center;
  font-size: 1.85rem;
  font-weight: 800;
  backdrop-filter: blur(8px);
}

.hero h1 {
  margin: 0 0 0.6rem;
  font-size: 2.15rem;
  letter-spacing: -0.03em;
  line-height: 1.15;
}

.hero .tagline {
  margin: 0 auto 1rem;
  max-width: 30rem;
  font-size: 1.02rem;
  opacity: 0.92;
  line-height: 1.5;
}

.hero .mission {
  display: inline-block;
  padding: 0.35rem 0.85rem;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.16);
  border: 1px solid rgba(255, 255, 255, 0.28);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.section {
  margin-bottom: 2.5rem;
  scroll-margin-top: 1rem;
}

.section-label {
  display: inline-block;
  margin-bottom: 0.55rem;
  padding: 0.25rem 0.65rem;
  border-radius: 999px;
  background: linear-gradient(135deg, rgba(0, 120, 255, 0.1), rgba(0, 180, 255, 0.08));
  color: var(--blue);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.section h2 {
  margin: 0 0 0.75rem;
  font-size: 1.55rem;
  letter-spacing: -0.02em;
  line-height: 1.2;
}

.section .lead {
  margin: 0 0 1.25rem;
  color: var(--muted);
  font-size: 0.98rem;
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem 1.2rem;
  box-shadow: var(--shadow);
}

.stat-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.65rem;
  margin-top: 1rem;
}

@media (max-width: 520px) {
  .stat-row {
    grid-template-columns: 1fr;
  }
}

.stat {
  text-align: center;
  padding: 0.85rem 0.5rem;
  border-radius: 12px;
  background: linear-gradient(135deg, rgba(0, 120, 255, 0.06), rgba(0, 180, 255, 0.04));
  border: 1px solid rgba(0, 120, 255, 0.12);
}

.stat strong {
  display: block;
  font-size: 1.1rem;
  color: var(--blue);
  margin-bottom: 0.15rem;
}

.stat span {
  font-size: 0.78rem;
  color: var(--muted);
  font-weight: 600;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.75rem;
}

@media (max-width: 600px) {
  .feature-grid {
    grid-template-columns: 1fr;
  }
}

.feature-card {
  padding: 1.1rem 1.05rem;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 14px;
  box-shadow: var(--shadow);
}

.feature-card .icon {
  font-size: 1.5rem;
  margin-bottom: 0.5rem;
}

.feature-card h3 {
  margin: 0 0 0.35rem;
  font-size: 0.95rem;
}

.feature-card p {
  margin: 0;
  font-size: 0.86rem;
  color: var(--muted);
  line-height: 1.5;
}

.steps {
  display: grid;
  gap: 0.75rem;
}

.step {
  display: flex;
  gap: 0.85rem;
  align-items: flex-start;
  padding: 1rem 1.05rem;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 14px;
}

.step-num {
  flex-shrink: 0;
  width: 2rem;
  height: 2rem;
  border-radius: 10px;
  background: var(--hero-grad);
  color: #fff;
  display: grid;
  place-items: center;
  font-weight: 800;
  font-size: 0.9rem;
}

.step h3 {
  margin: 0 0 0.25rem;
  font-size: 0.95rem;
}

.step p {
  margin: 0;
  font-size: 0.88rem;
  color: var(--muted);
}

.plan-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.75rem;
}

@media (max-width: 520px) {
  .plan-grid {
    grid-template-columns: 1fr;
  }
}

.plan {
  padding: 1.15rem 1.1rem;
  border-radius: 14px;
  border: 1px solid var(--border);
  background: var(--card);
}

.plan.pro {
  border-color: rgba(0, 120, 255, 0.35);
  background: linear-gradient(160deg, rgba(0, 120, 255, 0.07), rgba(0, 180, 255, 0.04));
}

.plan h3 {
  margin: 0 0 0.5rem;
  font-size: 1rem;
}

.plan ul {
  margin: 0;
  padding-left: 1.1rem;
  font-size: 0.88rem;
  color: var(--muted);
}

.plan li + li {
  margin-top: 0.35rem;
}

.site-footer {
  margin-top: 2rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--border);
  text-align: center;
  color: var(--muted);
  font-size: 0.85rem;
}

.site-footer nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.5rem 1rem;
  margin-bottom: 0.75rem;
}

.site-footer nav a {
  color: var(--muted);
  text-decoration: none;
}

.site-footer nav a:hover {
  color: var(--blue);
}