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

:root {
  --blue: #2CA5E0;
  --blue-dark: #1a8fc8;
  --blue-light: #e8f6fd;
  --text: #111827;
  --text-muted: #6B7280;
  --text-light: #9CA3AF;
  --bg: #ffffff;
  --bg-alt: #F9FAFB;
  --border: #E5E7EB;
  --radius: 14px;
  --shadow: 0 1px 3px rgba(0,0,0,0.06), 0 4px 16px rgba(0,0,0,0.06);
  --shadow-lg: 0 8px 32px rgba(0,0,0,0.1);
}

html {
  scroll-behavior: smooth;
}

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

.container {
  max-width: 960px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* ─── Header ─────────────────────────────────── */

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(210,237,250,0.88);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(44,165,224,0.18);
}

.header-inner {
  max-width: 960px;
  margin: 0 auto;
  padding: 0 1.5rem;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  text-decoration: none;
}

.logo-coa {
  height: 50px;
  width: auto;
}

.logo-text {
  font-weight: 700;
  font-size: 1rem;
  color: var(--text);
  letter-spacing: -0.01em;
}

/* ─── Buttons ─────────────────────────────────── */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  text-decoration: none;
  font-weight: 600;
  border-radius: 10px;
  transition: background 0.18s, transform 0.12s, box-shadow 0.18s;
  cursor: pointer;
  white-space: nowrap;
}

.btn:active {
  transform: scale(0.96);
}

.btn-primary {
  background: var(--blue);
  color: #fff;
  font-size: 1rem;
  padding: 0.85rem 1.75rem;
  box-shadow: 0 2px 12px rgba(44,165,224,0.35);
}

.btn-primary:hover {
  background: var(--blue-dark);
  box-shadow: 0 4px 20px rgba(44,165,224,0.45);
}

.btn-sm {
  background: var(--blue-light);
  color: var(--blue);
  font-size: 0.875rem;
  padding: 0.45rem 1rem;
}

.btn-sm:hover {
  background: #d0edf9;
}

/* ─── Hero ─────────────────────────────────────── */

.hero {
  position: relative;
  overflow: hidden;
  min-height: calc(100dvh - 60px);
  display: flex;
  align-items: center;
  text-align: center;
  padding: 3rem 0;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(
      to bottom,
      rgba(0,0,0,0.15) 0%,
      rgba(0,0,0,0.38) 40%,
      rgba(0,0,0,0.52) 100%
    ),
    url('back.png') center / cover no-repeat;
  z-index: 0;
}

.hero-coa {
  position: absolute;
  inset: 0;
  z-index: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  pointer-events: none;
}

.hero-coa img {
  width: min(75vw, 560px);
  height: auto;
  opacity: 0.13;
  filter: saturate(0) brightness(2);
}


.hero .container {
  position: relative;
  z-index: 1;
  width: 100%;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  background: rgba(255,255,255,0.15);
  color: rgba(255,255,255,0.9);
  font-size: 0.8rem;
  font-weight: 600;
  padding: 0.35rem 0.85rem;
  border-radius: 100px;
  margin-bottom: 1.5rem;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  backdrop-filter: blur(6px);
  border: 1px solid rgba(255,255,255,0.2);
}

h1 {
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.15;
  color: #ffffff;
  text-shadow: 0 2px 12px rgba(0,0,0,0.45);
  margin-bottom: 1.25rem;
}

.accent {
  color: #e6d80d;
}

.subtitle {
  font-size: 1.2rem;
  font-weight: 500;
  color: #ffffff;
  text-shadow: 0 1px 8px rgba(0,0,0,0.5);
  max-width: 520px;
  margin: 0 auto 2.25rem;
  line-height: 1.7;
}

.cta-group {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.65rem;
}

.cta-note {
  font-size: 0.8rem;
  color: rgba(255,255,255,0.5);
}

/* ─── Features ─────────────────────────────────── */

.features {
  padding: 4rem 0;
  background: var(--bg-alt);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.25rem;
}

.feature-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  box-shadow: var(--shadow);
  transition: box-shadow 0.2s, transform 0.2s;
}

.feature-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-2px);
}

.feature-icon {
  font-size: 1.75rem;
  margin-bottom: 0.75rem;
  line-height: 1;
}

.feature-card h3 {
  font-size: 0.95rem;
  font-weight: 700;
  margin-bottom: 0.4rem;
  color: var(--text);
}

.feature-card p {
  font-size: 0.875rem;
  color: var(--text-muted);
  line-height: 1.55;
}

/* ─── CTA Section ──────────────────────────────── */

.cta-section {
  padding: 4rem 0;
}

.cta-card {
  background: linear-gradient(135deg, #1a8fc8 0%, #2CA5E0 50%, #5bbfe8 100%);
  border-radius: 20px;
  padding: 3rem 2rem;
  text-align: center;
  color: #fff;
  box-shadow: 0 8px 40px rgba(44,165,224,0.3);
}

.cta-card h2 {
  font-size: clamp(1.4rem, 3vw, 1.9rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 0.75rem;
}

.cta-card p {
  font-size: 1rem;
  opacity: 0.85;
  margin-bottom: 1.75rem;
}

.cta-card .btn-primary {
  background: #fff;
  color: var(--blue-dark);
  box-shadow: 0 2px 16px rgba(0,0,0,0.15);
}

.cta-card .btn-primary:hover {
  background: #f0f9ff;
  box-shadow: 0 4px 24px rgba(0,0,0,0.2);
}

/* ─── Footer ─────────────────────────────────────── */

footer {
  background: rgba(210,237,250,0.6);
  border-top: 1px solid rgba(44,165,224,0.18);
  padding: 2rem 0;
}

.footer-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.75rem;
  text-align: center;
}

.disclaimer {
  font-size: 0.75rem;
  color: var(--text-light);
  max-width: 420px;
  line-height: 1.5;
}

.copyright {
  font-size: 0.75rem;
  color: var(--text-light);
}

/* ─── Animations ─────────────────────────────────── */

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(20px); }
  to   { opacity: 1; transform: translateY(0); }
}

.hero .container > * {
  animation: fadeUp 0.55s ease both;
}

.hero .container > *:nth-child(1) { animation-delay: 0.05s; }
.hero .container > *:nth-child(2) { animation-delay: 0.12s; }
.hero .container > *:nth-child(3) { animation-delay: 0.2s; }
.hero .container > *:nth-child(4) { animation-delay: 0.28s; }

.feature-card {
  animation: fadeUp 0.5s ease both;
}

/* ─── Responsive ─────────────────────────────────── */

@media (max-width: 600px) {
  .hero {
    min-height: calc(100svh - 60px);
    padding: 2rem 0;
    align-items: center;
  }

  h1 {
    font-size: clamp(1.75rem, 8vw, 2.5rem);
  }

  .subtitle {
    font-size: 1rem;
  }

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

  .cta-card {
    padding: 2rem 1.25rem;
  }

  .btn-primary {
    width: 100%;
    justify-content: center;
  }
}