/* 40ers Feest – vintage gold theme (RSVP pages only) */

:root {
  --bg: #0b1512;
  --gold: #e5a546;
  --gold-dim: #c48a32;
  --gold-glow: rgba(229, 165, 70, 0.15);
  --font-display: "Staatliches", "Alfa Slab One", "Roboto Slab", Georgia, serif;
  --font-body: "Roboto Condensed", "Arial Narrow", sans-serif;
  --content-max: 520px;
  --font-scale: 1.1;
  --text-base: calc(1.125rem * var(--font-scale));
  --text-md: calc(1.05rem * var(--font-scale));
  --text-sm: calc(1rem * var(--font-scale));
  --text-xs: calc(0.95rem * var(--font-scale));
  --text-subtitle: calc(1.15rem * var(--font-scale));
  --text-title-min: calc(2rem * var(--font-scale));
  --text-title-max: calc(2.5rem * var(--font-scale));
}

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

html {
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font-body);
  font-size: var(--text-base);
  color: var(--gold);
  background-color: var(--bg);
  background-image:
    radial-gradient(ellipse 120% 80% at 50% 0%, rgba(30, 55, 45, 0.35), transparent 60%),
    url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.12'/%3E%3C/svg%3E");
  background-size: auto, 180px 180px;
}

body::after {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background: repeating-linear-gradient(
    0deg,
    transparent,
    transparent 2px,
    rgba(0, 0, 0, 0.03) 2px,
    rgba(0, 0, 0, 0.03) 4px
  );
  opacity: 0.4;
}

.page {
  position: relative;
  z-index: 1;
  min-height: 100vh;
  padding: 2rem 1rem 3rem;
}

.container {
  max-width: var(--content-max);
  margin: 0 auto;
}

.site-header {
  text-align: center;
  margin-bottom: 1.5rem;
  padding-bottom: 1rem;
  border-bottom: 3px double var(--gold);
}

.site-header h1 {
  font-family: var(--font-display);
  font-size: clamp(var(--text-title-min), 7.15vw, var(--text-title-max));
  font-weight: 400;
  margin: 0;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--gold);
}

.page-title {
  font-family: var(--font-display);
  font-size: var(--text-subtitle);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin: 0.5rem 0 0;
  opacity: 0.9;
}

.card {
  border: 3px double var(--gold);
  padding: 1.25rem 1.5rem;
  background: linear-gradient(180deg, rgba(12, 28, 22, 0.6) 0%, rgba(8, 18, 14, 0.85) 100%);
  box-shadow:
    inset 0 0 60px var(--gold-glow),
    0 8px 32px rgba(0, 0, 0, 0.5);
}

.intro {
  font-size: var(--text-md);
  line-height: 1.5;
  margin: 0 0 1.25rem;
}

.intro--thanks {
  margin: 0;
  text-align: center;
}

.form-group {
  margin-bottom: 1rem;
}

.form-group .label,
.form-group label {
  display: block;
  font-family: var(--font-display);
  font-size: var(--text-sm);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-bottom: 0.35rem;
}

.form-group input[type="text"],
.form-group input[type="number"],
.form-group textarea {
  width: 100%;
  padding: 0.55rem 0.7rem;
  border: 2px solid var(--gold-dim);
  background: rgba(0, 0, 0, 0.35);
  color: var(--gold);
  font-family: inherit;
  font-size: var(--text-base);
}

.form-group textarea {
  resize: vertical;
  min-height: 5rem;
  line-height: 1.5;
  text-transform: none;
  letter-spacing: normal;
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--gold);
  box-shadow: 0 0 0 2px var(--gold-glow);
}

.form-group textarea::placeholder {
  color: var(--gold);
  opacity: 0.5;
}

.hint {
  font-size: var(--text-xs);
  opacity: 0.85;
  margin: 0.35rem 0 0;
}

.checkbox-group label {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-body);
  text-transform: none;
  letter-spacing: normal;
  margin-bottom: 0.5rem;
  cursor: pointer;
}

.checkbox-group input {
  accent-color: var(--gold);
}

.btn {
  display: inline-block;
  margin-top: 0.5rem;
  padding: 0.6rem 1.5rem;
  font-family: var(--font-display);
  font-size: var(--text-base);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--bg);
  background: var(--gold);
  border: 2px solid var(--gold);
  cursor: pointer;
  transition: background 0.15s, color 0.15s;
}

.btn:hover {
  background: transparent;
  color: var(--gold);
}

.alert {
  font-size: var(--text-md);
  padding: 0.75rem 1rem;
  margin-bottom: 1rem;
  border: 2px solid var(--gold);
}

.alert-success {
  background: rgba(229, 165, 70, 0.12);
}

.alert-error {
  background: rgba(180, 60, 50, 0.2);
  border-color: #c45a50;
  color: #e8a8a0;
}

.card .alert {
  margin-bottom: 0;
}

.card .alert + .intro,
.card .alert + form {
  margin-top: 1rem;
}

.event-images {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
  margin-top: 1.5rem;
  padding-top: 1.25rem;
  border-top: 2px dotted var(--gold);
}

.event-image {
  margin: 0;
}

.event-image img {
  display: block;
  width: 100%;
  height: auto;
  border: 2px solid var(--gold-dim);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.35);
}

.event-image--single {
  margin-top: 1.5rem;
  padding-top: 1.25rem;
  border-top: 2px dotted var(--gold);
}

@media (min-width: 480px) {
  .card {
    padding: 1.5rem 1.75rem;
  }

  .event-images {
    grid-template-columns: 1fr 1fr;
  }
}