:root {
  --cream: #fff8e7;
  --paper: #ffffff;
  --ink: #4a3b22;
  --ink-soft: #7a6a4a;
  --accent: #ff9f43;
  --accent-dark: #e8862a;
  --border: #f0e2c0;
  --good: #3fa66b;
  --bad: #d95c5c;
  font-size: 16px;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--cream);
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
}

.wrap {
  max-width: 640px;
  margin: 0 auto;
  padding: 32px 20px 64px;
}

.hero {
  text-align: center;
  margin-bottom: 28px;
}

.hero-badge {
  display: inline-block;
  background: var(--paper);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 4px 14px;
  font-size: 13px;
  color: var(--ink-soft);
  margin-bottom: 12px;
}

.hero h1 {
  margin: 0 0 8px;
  font-size: clamp(28px, 6vw, 40px);
  letter-spacing: -0.02em;
}

.tagline {
  margin: 0 auto;
  max-width: 440px;
  color: var(--ink-soft);
  font-size: 16px;
  line-height: 1.5;
}

.card {
  background: var(--paper);
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 24px;
  margin-bottom: 18px;
  box-shadow: 0 2px 14px rgba(74, 59, 34, 0.05);
}

.card h2 {
  margin: 0 0 14px;
  font-size: 17px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.step-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--accent);
  color: white;
  font-size: 13px;
  font-weight: 700;
}

.hint {
  margin: 0 0 14px;
  color: var(--ink-soft);
  font-size: 14px;
  line-height: 1.5;
}

.smiley-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 10px;
}

@media (max-width: 460px) {
  .smiley-grid {
    grid-template-columns: repeat(4, 1fr);
    gap: 8px;
  }
}

.smiley-option {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  background: var(--cream);
  border: 2px solid transparent;
  border-radius: 14px;
  padding: 10px 6px;
  cursor: pointer;
  transition: transform 0.12s ease, border-color 0.12s ease, background 0.12s ease;
  font: inherit;
  color: var(--ink);
}

.smiley-option:hover {
  transform: translateY(-2px);
}

.smiley-option svg {
  width: 44px;
  height: 44px;
}

.smiley-option span {
  font-size: 11.5px;
  color: var(--ink-soft);
}

.smiley-option[aria-checked="true"] {
  border-color: var(--accent);
  background: #fff3de;
}

.smiley-option[aria-checked="true"] span {
  color: var(--accent-dark);
  font-weight: 600;
}

input[type="email"] {
  width: 100%;
  font-size: 16px;
  padding: 12px 14px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--cream);
  color: var(--ink);
  margin-bottom: 12px;
}

input[type="email"]:focus {
  outline: 2px solid var(--accent);
  outline-offset: 1px;
}

button {
  font: inherit;
  font-weight: 600;
  border: none;
  border-radius: 10px;
  padding: 13px 18px;
  cursor: pointer;
  width: 100%;
}

#buy-button {
  background: var(--accent);
  color: white;
  transition: background 0.12s ease, opacity 0.12s ease;
}

#buy-button:hover:not(:disabled) {
  background: var(--accent-dark);
}

#buy-button:disabled {
  background: #e7dcc0;
  color: #a89a76;
  cursor: not-allowed;
}

.error {
  color: var(--bad);
  font-size: 13px;
  margin: 10px 0 0;
}

.pay-row {
  margin-bottom: 14px;
}

.pay-label {
  font-size: 12px;
  color: var(--ink-soft);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: 6px;
}

.pay-value-row {
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--cream);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 10px 12px;
}

.pay-value-row code {
  flex: 1;
  overflow-x: auto;
  white-space: nowrap;
  font-size: 14px;
}

.copy-btn {
  width: auto;
  flex-shrink: 0;
  background: var(--paper);
  border: 1px solid var(--border);
  color: var(--ink);
  padding: 7px 12px;
  font-size: 13px;
  font-weight: 600;
}

.copy-btn:hover {
  background: var(--cream);
}

.copy-btn.copied {
  background: var(--good);
  border-color: var(--good);
  color: white;
}

.expiry {
  font-size: 13px;
  color: var(--ink-soft);
  margin: 0 0 16px;
}

.status-box {
  display: flex;
  align-items: center;
  gap: 12px;
  background: var(--cream);
  border-radius: 10px;
  padding: 14px 16px;
  font-size: 14px;
}

.status-box.paid {
  background: #fff3de;
}

.status-box.delivered {
  background: #e9f7ee;
  color: #2b6b48;
}

.status-box.expired {
  background: #fbeaea;
  color: #a13f3f;
}

.spinner {
  width: 16px;
  height: 16px;
  border-radius: 50%;
  border: 2.5px solid var(--border);
  border-top-color: var(--accent);
  animation: spin 0.8s linear infinite;
  flex-shrink: 0;
}

.status-box.delivered .spinner,
.status-box.expired .spinner {
  display: none;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

.receipt {
  font-size: 13px;
  margin: 12px 0 0;
}

.receipt a {
  color: var(--accent-dark);
}

#start-over-button {
  margin-top: 14px;
  background: var(--paper);
  border: 1px solid var(--border);
  color: var(--ink);
}

footer {
  text-align: center;
  color: var(--ink-soft);
  font-size: 12.5px;
  margin-top: 24px;
  line-height: 1.6;
}