* {
  box-sizing: border-box;
}

:root {
  --bg: #f5f7fb;
  --surface: #ffffff;
  --surface-soft: #fbfcfe;
  --text: #142033;
  --muted: #667085;
  --line: #e7ecf3;
  --line-strong: #d7deea;
  --primary-color: #1f6feb;
  --primary-soft: #edf4ff;
  --success: #179c52;
  --danger: #dc3545;
  --shadow-sm: 0 8px 24px rgba(15, 23, 42, 0.06);
  --shadow-md: 0 18px 48px rgba(15, 23, 42, 0.08);
  --radius-sm: 12px;
  --radius-md: 18px;
  --radius-lg: 26px;
  --container-max: 1240px;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Segoe UI", -apple-system, BlinkMacSystemFont, sans-serif;
  background:
    radial-gradient(circle at top left, rgba(31, 111, 235, 0.06), transparent 28%),
    linear-gradient(180deg, #ffffff 0%, var(--bg) 36%, #f8fafc 100%);
  color: var(--text);
  text-rendering: optimizeLegibility;
}

a {
  text-decoration: none;
  color: inherit;
}

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

input,
select,
textarea,
button {
  font: inherit;
}

.container {
  width: min(100% - 24px, var(--container-max));
}

#message-container {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  z-index: 9999;
}

.center-message {
  background: var(--danger);
  color: #fff;
  padding: 18px 30px;
  font-size: 16px;
  border-radius: 16px;
  box-shadow: 0 18px 45px rgba(0, 0, 0, 0.22);
  text-align: center;
  min-width: min(420px, calc(100vw - 32px));
}

.page-shell {
  padding: 28px 0 56px;
}

.page-hero {
  margin-bottom: 24px;
  padding: 26px 28px;
  border: 1px solid rgba(255, 255, 255, 0.9);
  border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, 0.84);
  backdrop-filter: blur(8px);
  box-shadow: var(--shadow-sm);
}

.page-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  border-radius: 999px;
  background: var(--primary-soft);
  color: var(--primary-color);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.page-title {
  margin: 16px 0 8px;
  font-size: clamp(30px, 4vw, 42px);
  line-height: 1.06;
  font-weight: 900;
  letter-spacing: -0.03em;
  color: var(--text);
}

.page-copy {
  margin: 0;
  max-width: 720px;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.7;
}

.surface-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
}

.cart-animate {
  animation: cartBounce 0.5s ease;
}

.badge-pop {
  animation: badgePop 0.35s ease;
}

@keyframes cartBounce {
  0% { transform: scale(1); }
  30% { transform: scale(1.25); }
  50% { transform: scale(0.95); }
  70% { transform: scale(1.1); }
  100% { transform: scale(1); }
}

@keyframes badgePop {
  0% { transform: scale(0); }
  70% { transform: scale(1.25); }
  100% { transform: scale(1); }
}

@media (max-width: 768px) {
  .page-shell {
    padding: 20px 0 40px;
  }

  .page-hero {
    padding: 22px 18px;
    border-radius: 20px;
  }

  .page-title {
    font-size: 30px;
  }
}