* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
:root {
  --emerald: #059669;
  --emerald-light: #ecfdf5;
  --emerald-dark: #047857;
  --navy: #0f172a;
  --amber: #f59e0b;
  --slate: #64748b;
  --white: #fff;
  --gray-50: #f8fafc;
  --gray-100: #f1f5f9;
  --gray-200: #e2e8f0;
  --gray-800: #1e293b;
}
body {
  font-family: "Inter", sans-serif;
  color: var(--gray-800);
  line-height: 1.7;
  background: var(--gray-50);
}
.hero {
  background: linear-gradient(
    135deg,
    var(--emerald-dark),
    var(--emerald),
    #34d399
  );
  color: var(--white);
  padding: 80px 20px 60px;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: "";
  position: absolute;
  top: -60px;
  right: -60px;
  width: 200px;
  height: 200px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.1);
}
.hero::after {
  content: "";
  position: absolute;
  bottom: -40px;
  left: -40px;
  width: 160px;
  height: 160px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.08);
}
.hero-logo {
  width: 100px;
  height: 100px;
  border-radius: 24px;
  object-fit: contain;
  margin: 0 auto 20px;
  display: block;
  background: var(--white);
  padding: 8px;
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.15);
}
.hero h1 {
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 900;
  margin-bottom: 8px;
  letter-spacing: -0.5px;
}
.hero p {
  font-size: 1.05rem;
  opacity: 0.9;
  max-width: 500px;
  margin: 0 auto;
}
.hero .badge {
  display: inline-block;
  background: rgba(255, 255, 255, 0.2);
  backdrop-filter: blur(10px);
  padding: 6px 16px;
  border-radius: 20px;
  font-size: 0.8rem;
  font-weight: 600;
  margin-top: 16px;
  border: 1px solid rgba(255, 255, 255, 0.25);
}
.container {
  max-width: 900px;
  margin: 0 auto;
  padding: 0 20px;
}
.nav-bar {
  background: var(--white);
  border-bottom: 1px solid var(--gray-200);
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(12px);
}
.nav-bar .container {
  display: flex;
  gap: 4px;
  overflow-x: auto;
  padding: 12px 20px;
  scrollbar-width: none;
}
.nav-bar a {
  padding: 8px 16px;
  border-radius: 10px;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--slate);
  text-decoration: none;
  white-space: nowrap;
  transition: 0.2s;
}
.nav-bar a:hover,
.nav-bar a.active {
  background: var(--emerald-light);
  color: var(--emerald);
}
section {
  padding: 60px 0;
}
section:nth-child(odd) {
  background: var(--white);
}
.section-header {
  text-align: center;
  margin-bottom: 40px;
}
.section-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--emerald), #34d399);
  color: var(--white);
  font-weight: 800;
  font-size: 1rem;
  margin-bottom: 12px;
}
.section-header h2 {
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--gray-800);
  margin-bottom: 6px;
}
.section-header p {
  color: var(--slate);
  font-size: 0.95rem;
}
.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 20px;
  margin-top: 30px;
}
.feature-card {
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: 16px;
  padding: 24px;
  transition: 0.3s;
}
.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.08);
}
.feature-card .icon {
  width: 48px;
  height: 48px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  margin-bottom: 14px;
}
.feature-card h3 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 6px;
}
.feature-card p {
  font-size: 0.85rem;
  color: var(--slate);
  line-height: 1.6;
}
.ic-green {
  background: #ecfdf5;
  color: #059669;
}
.ic-indigo {
  background: #eef2ff;
  color: #6366f1;
}
.ic-amber {
  background: #fffbeb;
  color: #f59e0b;
}
.ic-rose {
  background: #fff1f2;
  color: #f43f5e;
}
.step-list {
  counter-reset: steps;
  list-style: none;
  max-width: 640px;
  margin: 0 auto;
}
.step-list li {
  counter-increment: steps;
  position: relative;
  padding: 0 0 30px 60px;
  border-left: 2px solid var(--gray-200);
  margin-left: 18px;
}
.step-list li:last-child {
  border-left: 2px solid transparent;
  padding-bottom: 0;
}
.step-list li::before {
  content: counter(steps);
  position: absolute;
  left: -18px;
  top: 0;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--emerald);
  color: var(--white);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.85rem;
}
.step-list li h4 {
  font-size: 0.95rem;
  font-weight: 700;
  margin-bottom: 4px;
}
.step-list li p {
  font-size: 0.85rem;
  color: var(--slate);
}
.screenshot {
  width: 100%;
  max-width: 300px;
  border-radius: 20px;
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.12);
  margin: 20px auto;
  display: block;
}
.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
}
@media (max-width: 700px) {
  .two-col {
    grid-template-columns: 1fr;
  }
}
.tip-box {
  background: linear-gradient(135deg, #fffbeb, #fef3c7);
  border: 1px solid #fde68a;
  border-radius: 14px;
  padding: 20px;
  margin: 20px 0;
}
.tip-box h4 {
  color: #b45309;
  font-size: 0.9rem;
  margin-bottom: 6px;
}
.tip-box p {
  color: #92400e;
  font-size: 0.85rem;
}
.faq {
  max-width: 640px;
  margin: 0 auto;
}
.faq details {
  border: 1px solid var(--gray-200);
  border-radius: 12px;
  margin-bottom: 10px;
  background: var(--white);
  overflow: hidden;
}
.faq summary {
  padding: 16px 20px;
  font-weight: 600;
  font-size: 0.9rem;
  cursor: pointer;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.faq summary::after {
  content: "+";
  font-size: 1.2rem;
  color: var(--emerald);
  font-weight: 700;
}
.faq details[open] summary::after {
  content: "−";
}
.faq details div {
  padding: 0 20px 16px;
  font-size: 0.85rem;
  color: var(--slate);
  line-height: 1.7;
}
.policy-block {
  max-width: 640px;
  margin: 0 auto 20px;
}
.policy-block details {
  border: 1px solid var(--gray-200);
  border-radius: 12px;
  margin-bottom: 10px;
  background: var(--white);
  overflow: hidden;
  transition: 0.3s;
}
.policy-block details[open] {
  border-color: var(--emerald);
  box-shadow: 0 4px 16px rgba(5, 150, 105, 0.08);
}
.policy-block summary {
  padding: 16px 20px;
  font-weight: 600;
  font-size: 0.9rem;
  cursor: pointer;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: 0.2s;
}
.policy-block summary:hover {
  background: var(--emerald-light);
}
.policy-block summary::after {
  content: "▸";
  font-size: 1rem;
  color: var(--emerald);
  font-weight: 700;
  transition: 0.2s;
}
.policy-block details[open] summary::after {
  content: "▾";
}
.policy-block details div {
  padding: 0 20px 16px;
  font-size: 0.85rem;
  color: var(--slate);
  line-height: 1.7;
}
.policy-block details div p {
  margin-bottom: 8px;
}
footer {
  background: var(--navy);
  color: rgba(255, 255, 255, 0.7);
  text-align: center;
  padding: 40px 20px;
}
footer .brand {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 6px;
}
footer p {
  font-size: 0.8rem;
}
footer a {
  color: #34d399;
  text-decoration: none;
}
.download-cta {
  background: linear-gradient(135deg, var(--navy), #1e3a5f);
  border-radius: 20px;
  padding: 40px;
  text-align: center;
  color: var(--white);
  margin: 40px 0;
}
.download-cta h3 {
  font-size: 1.4rem;
  font-weight: 800;
  margin-bottom: 8px;
}
.download-cta p {
  opacity: 0.7;
  font-size: 0.9rem;
  margin-bottom: 20px;
}
.download-cta .btn {
  display: inline-block;
  background: var(--emerald);
  color: var(--white);
  padding: 12px 32px;
  border-radius: 12px;
  font-weight: 700;
  font-size: 0.9rem;
  text-decoration: none;
  transition: 0.2s;
}
.download-cta .btn:hover {
  background: #34d399;
  transform: scale(1.03);
}