:root {
  --bg: #f4f1ea;
  --surface: #fffdf8;
  --text: #2f2a24;
  --muted: #6b645b;
  --accent: #5a6b4f;
  --accent-dark: #46543d;
  --border: rgba(47, 42, 36, 0.12);
  --shadow: 0 18px 40px rgba(47, 42, 36, 0.12);
  --radius: 12px;
  --card-ratio: 5 / 7;
  --layout-scale: 0.75;
}
*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Source Sans 3", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top, rgba(255, 255, 255, 0.7), transparent 55%),
    var(--bg);
  line-height: 1.6;
}

.page {
  width: min(calc(720px * var(--layout-scale)), 100%);
  margin: 0 auto;
  padding: calc(2.5rem * var(--layout-scale)) 1.25rem calc(4rem * var(--layout-scale));
}

.hero {
  text-align: center;
  margin-bottom: calc(2rem * var(--layout-scale));
}

.eyebrow {
  margin: 0 0 0.5rem;
  font-size: 0.85rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent);
}

h1,
h2 {
  font-family: "Cormorant Garamond", serif;
  font-weight: 600;
  line-height: 1.15;
}

h1 {
  margin: 0 0 0.75rem;
  font-size: clamp(1.9rem, 5.5vw, calc(3.4rem * var(--layout-scale)));
}

h2 {
  margin: 0 0 0.75rem;
  font-size: clamp(1.45rem, 4vw, calc(2.2rem * var(--layout-scale)));
}

.intro,
.form-intro,
.card-hint {
  margin: 0;
  color: var(--muted);
}

.card-section {
  display: grid;
  gap: calc(1rem * var(--layout-scale));
  margin-bottom: calc(3rem * var(--layout-scale));
}

.card-scene {
  perspective: 1200px;
  -webkit-perspective: 1200px;
  width: 100%;
}

.card-flip {
  display: block;
  width: 100%;
  padding: 0;
  border: 0;
  background: none;
  cursor: pointer;
  touch-action: manipulation;
  -webkit-tap-highlight-color: transparent;
  outline: none;
}

.card-flip:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 4px;
  border-radius: var(--radius);
}

.card-inner {
  position: relative;
  width: 100%;
  aspect-ratio: var(--card-ratio);
  transform-style: preserve-3d;
  -webkit-transform-style: preserve-3d;
  transform: rotateY(0deg);
  -webkit-transform: rotateY(0deg);
}

.card-inner.is-animated {
  transition: transform 0.35s cubic-bezier(0.4, 0.2, 0.2, 1);
  -webkit-transition: -webkit-transform 0.35s cubic-bezier(0.4, 0.2, 0.2, 1);
}

.card-surface {
  position: absolute;
  inset: 0;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  background: #d8d2c4;
  overflow: hidden;
}

.card-texture {
  position: absolute;
  inset: 0;
  border-radius: inherit;
  pointer-events: none;
  background: url("/assets/paper/grass-texture.jpg") center / cover no-repeat;
}

.card-texture.is-mirrored {
  transform: scaleX(-1);
}

.card-surface picture,
.card-surface img {
  position: relative;
  z-index: 1;
  display: block;
  width: 100%;
  height: 100%;
  object-fit: contain;
  pointer-events: none;
}

.form-section {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: calc(var(--radius) + 4px);
  padding: calc(1.75rem * var(--layout-scale));
  box-shadow: 0 8px 24px rgba(47, 42, 36, 0.06);
}

.address-form {
  margin-top: 1.5rem;
}

.address-form.is-submitted {
  margin-top: 0;
}

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

.field {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  font-size: 0.95rem;
}

.field span small {
  color: var(--muted);
  font-weight: 400;
}

.field--full {
  grid-column: 1 / -1;
}

.field--street {
  grid-column: 1 / span 1;
}

.field--number {
  grid-column: 2 / span 1;
}

input,
textarea {
  width: 100%;
  padding: 0.75rem 0.85rem;
  border: 1px solid var(--border);
  border-radius: 10px;
  font: inherit;
  color: var(--text);
  background: #fff;
}

input:focus,
textarea:focus {
  outline: 2px solid rgba(90, 107, 79, 0.35);
  border-color: var(--accent);
}

input:invalid:not(:placeholder-shown),
textarea:invalid:not(:placeholder-shown) {
  border-color: #b85c4a;
}

.hp-field {
  position: absolute;
  left: -9999px;
  opacity: 0;
  pointer-events: none;
}

.turnstile-field {
  margin-top: 1rem;
}

.form-message {
  min-height: 1.5rem;
  margin: 1rem 0 0;
  font-size: 0.95rem;
}

.address-form.is-submitted .form-message {
  margin-top: 0;
}

.form-message.is-success {
  color: var(--accent-dark);
}

.form-message.is-error {
  color: #a33f2d;
}

.btn-submit {
  margin-top: 1rem;
  width: 100%;
  padding: 0.9rem 1.2rem;
  border: 0;
  border-radius: 999px;
  font: inherit;
  font-weight: 600;
  color: #fff;
  background: linear-gradient(135deg, var(--accent), var(--accent-dark));
  cursor: pointer;
  transition: transform 0.15s ease, opacity 0.15s ease;
}

.btn-submit:hover:not(:disabled) {
  transform: translateY(-1px);
}

.btn-submit:disabled {
  opacity: 0.65;
  cursor: not-allowed;
}

@media (max-width: 640px) {
  .form-grid {
    grid-template-columns: 1fr;
  }

  .field--street,
  .field--number {
    grid-column: 1 / -1;
  }
}

@media (prefers-reduced-motion: reduce) {
  .card-inner.is-animated {
    transition: none;
    -webkit-transition: none;
  }

  html {
    scroll-behavior: auto;
  }
}