:root {
  --primary: #0A2540;
  --secondary: #1E3A8A;
  --gold: #C9A14A;
  --bg: #F8FAFC;
  --text: #1F2937;
}

/* RESET */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: 'Inter', sans-serif;
  background: var(--bg);
  color: var(--text);
}

/* CONTAINER */
.container {
  max-width: 1200px;
  margin: auto;
  padding: 20px;
}

.center {
  text-align: center;
}

/* HEADER */
.topbar {
  background: #fff;
  border-bottom: 1px solid #eee;
  position: sticky;
  top: 0;
  z-index: 10;
}

.topbar-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.brand {
  display: flex;
  gap: 10px;
  align-items: center;
}

.brand img {
  height: 42px;
}

.brand small {
  font-size: 12px;
  color: #777;
}

/* BUTTON */
.btn {
  padding: 10px 18px;
  border-radius: 999px;
  text-decoration: none;
  font-weight: 600;
}

.btn-primary {
  background: linear-gradient(135deg, var(--secondary), var(--primary));
  color: white;
}

/* HERO */
.hero {
  padding: 60px 20px;
}

.hero h1 {
  font-size: 32px;
}

.subtitle {
  max-width: 500px;
  margin: 10px auto;
  color: #64748b;
}

.price-box {
  margin-top: 15px;
  font-size: 16px;
}

.price-box strong {
  color: var(--gold);
  font-size: 22px;
}

.price-box span {
  display: block;
  font-size: 12px;
  color: #666;
}

.trust {
  margin-top: 15px;
  display: flex;
  justify-content: center;
  gap: 10px;
  flex-wrap: wrap;
}

.trust span {
  background: #fff;
  border: 1px solid #eee;
  padding: 6px 12px;
  border-radius: 20px;
  font-size: 12px;
}

/* SECTION */
.section {
  padding: 40px 20px;
}

/* ADDON */
.addon-box {
  background: white;
  padding: 20px;
  border-radius: 14px;
  max-width: 420px;
  margin: auto;
  box-shadow: 0 8px 20px rgba(0,0,0,0.05);
}

.addon-box li {
  display: flex;
  justify-content: space-between;
  padding: 6px 0;
}

.addon-box span {
  color: var(--gold);
  font-weight: 600;
}

.note {
  margin-top: 10px;
  font-size: 13px;
  color: #64748b;
}

/* GRID */
.grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
}

/* TABLET */
@media (min-width: 768px) {
  .grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* DESKTOP */
@media (min-width: 1024px) {
  .grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

/* CARD */
.card {
  position: relative;
  border-radius: 14px;
  overflow: hidden;
}

.card img {
  width: 100%;
  height: 200px;
  object-fit: cover;
}

/* OVERLAY */
.overlay {
  position: absolute;
  bottom: 0;
  width: 100%;
  padding: 10px;
  background: linear-gradient(to top, rgba(0,0,0,0.7), transparent);
  color: white;
  text-align: center;
}

.overlay h4 {
  font-size: 14px;
}

.overlay p {
  font-size: 12px;
}

/* FOOTER */
footer {
  background: #0A2540;
  color: white;
  padding: 25px 20px;
}

.footer-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 10px;
}

.footer-brand img {
  height: 32px;
}

/* MOBILE FIX */
@media (max-width: 480px) {
  .hero h1 {
    font-size: 24px;
  }

  .price-box strong {
    font-size: 18px;
  }
}