:root {
  --nigeria-green: #008751;
  --nigeria-white: #ffffff;
  --alatpay-rose: #9d103f;
  --text-dark: #1b1b1b;
  --text-muted: #4d4d4d;
  --background: #f2f6f1;
  --shadow-soft: rgba(0, 0, 0, 0.08);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
  background: var(--background);
  color: var(--text-dark);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.hero {
  position: relative;
  min-height: 40vh;
  background: linear-gradient(135deg, rgba(0, 135, 81, 0.85), rgba(157, 16, 63, 0.85)),
    url("https://images.unsplash.com/photo-1525182008055-f88b95ff7980?auto=format&fit=crop&w=1400&q=80")
      center/cover no-repeat;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  color: var(--nigeria-white);
  padding: 3rem 1.5rem;
}

.hero__content h1 {
  font-size: clamp(2.4rem, 4vw, 3.2rem);
  margin-bottom: 0.5rem;
  letter-spacing: 0.04em;
}

.hero__content p {
  font-size: clamp(1.1rem, 2.5vw, 1.4rem);
  opacity: 0.9;
}

.container {
  flex: 1;
  display: flex;
  justify-content: center;
  padding: 2rem 1.25rem 4rem;
}

.product-card {
  background: var(--nigeria-white);
  border-radius: 18px;
  box-shadow: 0 20px 40px var(--shadow-soft);
  max-width: 420px;
  width: 100%;
  padding: 2.5rem 2rem;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.product-card__header h2 {
  margin: 0;
  color: var(--nigeria-green);
  font-size: 1.9rem;
}

.product-card__subtitle {
  margin: 0.35rem 0 0;
  color: var(--text-muted);
}

.product-card__details {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 0.75rem;
}

.product-card__details li::before {
  content: "\2713";
  margin-right: 0.6rem;
  color: var(--nigeria-green);
  font-weight: bold;
}

.product-card__price {
  display: flex;
  align-items: baseline;
  gap: 0.75rem;
}

.product-card__price .amount {
  font-size: 2.2rem;
  font-weight: 700;
  color: var(--nigeria-green);
}

.product-card__price .caption {
  color: var(--text-muted);
  font-size: 0.95rem;
}

.purchase-form {
  margin-top: 1.5rem;
  display: grid;
  gap: 1.25rem;
}

.form-grid {
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.product-card__subtitle {
  min-height: 1.6rem;
}

.form-group label {
  display: block;
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 0.35rem;
}

.form-group input {
  width: 100%;
  border: 1px solid rgba(0, 135, 81, 0.25);
  border-radius: 10px;
  padding: 0.75rem 0.85rem;
  font-size: 1rem;
}

.form-group input:focus {
  outline: 2px solid rgba(0, 135, 81, 0.4);
  border-color: transparent;
}

.hidden {
  display: none !important;
}

.cta {
  background: var(--alatpay-rose);
  color: var(--nigeria-white);
  border: none;
  border-radius: 999px;
  padding: 0.95rem 1.5rem;
  font-size: 1.05rem;
  font-weight: 600;
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
}

.cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 15px 30px rgba(157, 16, 63, 0.25);
}

.cta:active {
  transform: translateY(0);
}

.footer {
  background: #0d1f12;
  color: rgba(255, 255, 255, 0.75);
  text-align: center;
  padding: 1.5rem;
  font-size: 0.9rem;
}

.toast {
  position: fixed;
  left: 50%;
  bottom: 2rem;
  transform: translate(-50%, 100%);
  background: rgba(0, 0, 0, 0.85);
  color: #fff;
  padding: 0.9rem 1.4rem;
  border-radius: 999px;
  font-size: 0.95rem;
  opacity: 0;
  transition: transform 0.3s ease, opacity 0.3s ease;
  z-index: 9999;
}

.toast.visible {
  opacity: 1;
  transform: translate(-50%, 0);
}

.toast--success {
  background: var(--nigeria-green);
}

.toast--error {
  background: var(--alatpay-rose);
}

.toast--info {
  background: rgba(0, 0, 0, 0.85);
}

@media (max-width: 600px) {
  .product-card {
    padding: 2rem 1.5rem;
  }

  .product-card__price .amount {
    font-size: 1.9rem;
  }

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