:root {
  --color-bg: #f4f5f7;
  --color-surface: #ffffff;
  --color-text: #1f2933;
  --color-muted: #5c6773;
  --color-accent: #1d6fd6;
  --color-accent-dark: #14529e;
  --color-accent-soft: #eef4fc;
  --color-border: #d6d9de;
  --radius: 10px;
  --shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.5;
}

/* Password gate overlay (client-side soft gate — see note in script.js). */
.gate {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  background: var(--color-bg);
}

.gate[hidden] {
  display: none;
}

.gate-card {
  width: 100%;
  max-width: 360px;
  padding: 2rem;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  text-align: center;
}

.gate-title {
  margin: 0 0 0.5rem;
  font-size: 1.75rem;
  color: var(--color-accent);
}

.gate-prompt {
  margin: 0 0 1.25rem;
  color: var(--color-muted);
  font-size: 0.95rem;
}

.gate-input {
  width: 100%;
  padding: 0.7rem 0.85rem;
  font-size: 1rem;
  border: 1px solid var(--color-border);
  border-radius: 6px;
  margin-bottom: 0.75rem;
}

.gate-input:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px var(--color-accent-soft);
}

.gate-btn {
  width: 100%;
  padding: 0.7rem 1rem;
  background: var(--color-accent);
  color: #fff;
  border: none;
  border-radius: 6px;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.15s ease;
}

.gate-btn:hover,
.gate-btn:focus-visible {
  background: var(--color-accent-dark);
  outline: none;
}

.gate-error {
  margin: 0.75rem 0 0;
  color: var(--color-accent-dark);
  font-size: 0.85rem;
}

.gate-error[hidden] {
  display: none;
}

.site-header {
  text-align: center;
  padding: 2.5rem 1rem 1.5rem;
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
}

.site-header h1 {
  margin: 0 0 0.5rem;
  font-size: 2rem;
  letter-spacing: -0.01em;
}

.subtitle {
  margin: 0;
  color: var(--color-muted);
  font-size: 0.95rem;
}

main {
  max-width: 1100px;
  margin: 0 auto;
  padding: 2rem 1rem 3rem;
}

.coupon-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.25rem;
}

.coupon {
  display: flex;
  flex-direction: column;
  background: var(--color-surface);
  border: 2px dashed var(--color-accent);
  border-radius: var(--radius);
  padding: 1.25rem;
  box-shadow: var(--shadow);
  position: relative;
}

.coupon-body {
  flex: 1;
}

.coupon-icon {
  width: 48px;
  height: 48px;
  margin-bottom: 0.75rem;
  color: var(--color-accent);
}

.coupon-icon svg {
  width: 100%;
  height: 100%;
  display: block;
}

.coupon-headline {
  font-size: 1.75rem;
  font-weight: 800;
  color: var(--color-accent);
  letter-spacing: 0.02em;
  margin-bottom: 0.25rem;
}

.coupon-title {
  margin: 0 0 0.75rem;
  font-size: 1.1rem;
  font-weight: 600;
}

.coupon-description {
  margin: 0 0 1rem;
  color: var(--color-text);
}

.coupon-expires {
  margin: 0 0 0.5rem;
  font-size: 0.85rem;
  color: var(--color-muted);
}

.coupon-terms {
  margin: 0 0 1rem;
  font-size: 0.75rem;
  color: var(--color-muted);
  font-style: italic;
}

.coupon-actions {
  margin-top: auto;
}

.print-btn {
  width: 100%;
  padding: 0.7rem 1rem;
  background: var(--color-accent);
  color: #fff;
  border: none;
  border-radius: 6px;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.15s ease;
}

.print-btn:hover,
.print-btn:focus-visible {
  background: var(--color-accent-dark);
  outline: none;
}

.status {
  text-align: center;
  color: var(--color-muted);
  font-size: 0.95rem;
  margin-top: 1.5rem;
}

@media print {
  body * {
    visibility: hidden;
  }

  .coupon.printing,
  .coupon.printing * {
    visibility: visible;
  }

  .coupon.printing {
    position: absolute;
    top: 1cm;
    left: 1cm;
    /* Width is constrained so the coupon stays coupon-sized, not full-page.
       Height is left to the content so nothing is clipped. */
    width: 9cm;
    max-width: calc(100% - 2cm);
    height: auto;
    box-shadow: none;
    page-break-inside: avoid;
  }

  .coupon.printing .coupon-icon {
    width: 36px;
    height: 36px;
  }

  .coupon.printing .coupon-actions {
    display: none;
  }
}