/* ===== Reset & Base ===== */
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --green: #34C759;
  --green-dark: #2AAE4A;
  --green-light: #E8F9ED;
  --text: #1a1a1a;
  --text-secondary: #555;
  --bg: #ffffff;
  --bg-alt: #f9fafb;
  --border: #e5e7eb;
  --radius: 12px;
  --max-width: 960px;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
    Helvetica, Arial, sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

a:hover {
  text-decoration: underline;
}

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

/* ===== Nav ===== */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.nav-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text);
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav-logo span {
  color: var(--green);
}

.nav-links {
  display: flex;
  gap: 28px;
  list-style: none;
}

.nav-links a {
  color: var(--text-secondary);
  font-size: 0.95rem;
  font-weight: 500;
  transition: color 0.2s;
}

.nav-links a:hover {
  color: var(--green-dark);
  text-decoration: none;
}

/* ===== Hero ===== */
.hero {
  text-align: center;
  padding: 80px 24px 64px;
  max-width: var(--max-width);
  margin: 0 auto;
}

.hero h1 {
  font-size: clamp(2rem, 5vw, 3.25rem);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin-bottom: 20px;
}

.hero h1 .highlight {
  color: var(--green);
}

.hero p.subtitle {
  font-size: clamp(1rem, 2.5vw, 1.2rem);
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto 36px;
}

/* App Store button */
.app-store-btn {
  display: inline-block;
  transition: transform 0.2s, opacity 0.2s;
}

.app-store-btn:hover {
  transform: scale(1.05);
  opacity: 0.9;
}

.app-store-btn img {
  height: 54px;
}

/* ===== How It Works ===== */
.section {
  padding: 72px 24px;
  max-width: var(--max-width);
  margin: 0 auto;
}

.section-alt {
  background: var(--bg-alt);
}

.section-alt .section {
  padding-left: 24px;
  padding-right: 24px;
}

.section-title {
  text-align: center;
  font-size: 1.75rem;
  font-weight: 700;
  margin-bottom: 48px;
  letter-spacing: -0.01em;
}

.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.step {
  text-align: center;
  padding: 32px 20px;
  border-radius: var(--radius);
  background: var(--bg);
  border: 1px solid var(--border);
}

.step-icon {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--green-light);
  color: var(--green);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin: 0 auto 16px;
  font-weight: 700;
}

.step h3 {
  font-size: 1.15rem;
  margin-bottom: 8px;
}

.step p {
  color: var(--text-secondary);
  font-size: 0.95rem;
}

/* ===== Features ===== */
.features-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.feature-card {
  padding: 28px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--bg);
}

.feature-card h3 {
  font-size: 1.05rem;
  margin-bottom: 6px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.feature-card h3 .icon {
  color: var(--green);
  font-size: 1.25rem;
}

.feature-card p {
  color: var(--text-secondary);
  font-size: 0.93rem;
}

/* ===== CTA ===== */
.cta {
  text-align: center;
  padding: 72px 24px;
  max-width: var(--max-width);
  margin: 0 auto;
}

.cta h2 {
  font-size: 1.75rem;
  font-weight: 700;
  margin-bottom: 12px;
}

.cta p {
  color: var(--text-secondary);
  margin-bottom: 28px;
  font-size: 1.05rem;
}

/* ===== Footer ===== */
.footer {
  border-top: 1px solid var(--border);
  padding: 32px 24px;
  text-align: center;
  color: var(--text-secondary);
  font-size: 0.9rem;
}

.footer-inner {
  max-width: var(--max-width);
  margin: 0 auto;
}

.footer-links {
  display: flex;
  justify-content: center;
  gap: 24px;
  margin-bottom: 12px;
}

.footer-links a {
  color: var(--text-secondary);
  font-weight: 500;
}

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

/* ===== Legal / Support Pages ===== */
.page-header {
  text-align: center;
  padding: 56px 24px 32px;
  border-bottom: 1px solid var(--border);
}

.page-header h1 {
  font-size: 2rem;
  font-weight: 800;
}

.page-header p {
  color: var(--text-secondary);
  margin-top: 8px;
}

.page-content {
  max-width: 720px;
  margin: 0 auto;
  padding: 48px 24px 72px;
}

.page-content h2 {
  font-size: 1.3rem;
  font-weight: 700;
  margin: 36px 0 12px;
}

.page-content h2:first-child {
  margin-top: 0;
}

.page-content p,
.page-content li {
  color: var(--text-secondary);
  font-size: 0.97rem;
  margin-bottom: 12px;
}

.page-content ul {
  padding-left: 20px;
  margin-bottom: 12px;
}

.page-content li {
  margin-bottom: 6px;
}

.page-content a {
  word-break: break-all;
}

/* FAQ */
.faq-item {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  margin-bottom: 16px;
}

.faq-item h3 {
  font-size: 1.05rem;
  margin-bottom: 8px;
}

.faq-item p {
  margin-bottom: 0;
}

/* Contact card */
.contact-card {
  background: var(--green-light);
  border-radius: var(--radius);
  padding: 32px;
  text-align: center;
  margin-top: 40px;
}

.contact-card h2 {
  margin-top: 0;
  color: var(--text);
}

.contact-card .email-link {
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--green-dark);
}

/* ===== Responsive ===== */
@media (max-width: 768px) {
  .steps {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .features-grid {
    grid-template-columns: 1fr;
  }

  .hero {
    padding: 56px 20px 48px;
  }

  .section {
    padding: 48px 20px;
  }

  .nav-links {
    gap: 16px;
  }

  .nav-links a {
    font-size: 0.88rem;
  }
}

@media (max-width: 480px) {
  .nav-inner {
    padding: 0 16px;
  }

  .nav-links {
    gap: 12px;
  }
}