/* Kerno checkout — design tokens lifted directly from the Visual Identity
   System doc. No new colors, fonts, or spacing values invented here. */

:root {
  --warm-white: #f8f6f2;
  --near-black: #141414;
  --bronze: #b87333;
  --bronze-tint: #f5ede0;
  --mid-gray: #666666;
  --border-gray: #e0ddd8;
  --error: #b8332e;

  --font-display: 'Clash Display', 'Helvetica Neue', sans-serif;
  --font-body: 'Plus Jakarta Sans', sans-serif;
  --font-mono: 'JetBrains Mono', 'SF Mono', monospace;

  --space: 8px; /* base spacing unit per Visual Identity doc */
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: var(--font-body);
  background: var(--warm-white);
  color: var(--near-black);
  -webkit-font-smoothing: antialiased;
}

a {
  color: inherit;
}

.checkout {
  display: grid;
  grid-template-columns: 1fr;
  min-height: 100vh;
}

@media (min-width: 900px) {
  .checkout {
    grid-template-columns: 420px 1fr;
  }
}

/* ---- Order summary panel (near-black, the "manifest") ---- */

.summary {
  background: var(--near-black);
  color: var(--warm-white);
  padding: calc(var(--space) * 8) calc(var(--space) * 6);
}

.summary__wordmark {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 22px;
  text-decoration: none;
  letter-spacing: -0.01em;
}

.summary__eyebrow {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--bronze);
  margin: calc(var(--space) * 6) 0 calc(var(--space) * 3);
}

.summary__items {
  list-style: none;
  padding: 0;
  margin: 0;
  border-top: 1px solid rgba(248, 246, 242, 0.15);
}

.summary__item {
  display: flex;
  gap: var(--space);
  padding: calc(var(--space) * 2) 0;
  border-bottom: 1px solid rgba(248, 246, 242, 0.15);
  align-items: center;
}

.summary__item img {
  width: 56px;
  height: 56px;
  object-fit: cover;
  border-radius: 4px;
  background: rgba(248, 246, 242, 0.08);
  flex-shrink: 0;
}

.summary__item-info {
  min-width: 0;
}

.summary__item-title {
  font-size: 14px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.summary__item-qty {
  font-family: var(--font-mono);
  font-size: 12px;
  color: rgba(248, 246, 242, 0.55);
  margin-top: 2px;
}

.summary__item-price {
  font-family: var(--font-mono);
  font-size: 14px;
  margin-left: auto;
  white-space: nowrap;
  padding-left: var(--space);
}

.summary__totals {
  margin-top: calc(var(--space) * 3);
  padding-top: calc(var(--space) * 2);
  border-top: 1px solid var(--bronze);
}

.summary__row {
  display: flex;
  justify-content: space-between;
  font-family: var(--font-mono);
  font-size: 14px;
  padding: calc(var(--space) / 2) 0;
  color: rgba(248, 246, 242, 0.65);
}

.summary__row--total {
  font-size: 20px;
  color: var(--warm-white);
  font-weight: 600;
  padding-top: var(--space);
}

/* ---- Payment panel (warm white) ---- */

.payment {
  padding: calc(var(--space) * 8) calc(var(--space) * 6);
  display: flex;
  justify-content: center;
}

.payment__inner {
  width: 100%;
  max-width: 440px;
}

.payment__heading {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 32px;
  margin: 0 0 calc(var(--space) * 4);
  letter-spacing: -0.01em;
}

.field {
  display: block;
  margin-bottom: calc(var(--space) * 3);
}

.field__label {
  display: block;
  font-size: 13px;
  color: var(--mid-gray);
  margin-bottom: var(--space);
}

.field input {
  width: 100%;
  padding: 12px 16px;
  font-family: var(--font-body);
  font-size: 16px;
  border: 1px solid var(--border-gray);
  border-radius: 4px;
  background: #ffffff;
  color: var(--near-black);
}

.field input:focus {
  outline: none;
  border-color: var(--bronze);
}

#payment-element {
  margin-bottom: calc(var(--space) * 4);
}

button#submit {
  width: 100%;
  padding: 16px;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 15px;
  background: var(--near-black);
  color: var(--warm-white);
  border: none;
  border-radius: 4px;
  cursor: pointer;
  transition: opacity 150ms ease;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space);
}

button#submit:hover:not(:disabled) {
  opacity: 0.85;
}

button#submit:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

#button-amount {
  font-family: var(--font-mono);
}

.spinner {
  width: 16px;
  height: 16px;
  border: 2px solid rgba(248, 246, 242, 0.3);
  border-top-color: var(--warm-white);
  border-radius: 50%;
  animation: spin 700ms linear infinite;
}

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

#payment-message {
  margin-top: 16px;
  font-size: 14px;
  color: var(--error);
}

.payment__footnote {
  margin-top: calc(var(--space) * 3);
  font-size: 12px;
  color: var(--mid-gray);
}

.hidden {
  display: none !important;
}

@media (max-width: 899px) {
  .summary {
    padding: calc(var(--space) * 4) calc(var(--space) * 3);
  }
  .payment {
    padding: calc(var(--space) * 4) calc(var(--space) * 3);
  }
  .payment__heading {
    font-size: 28px;
  }
}