/* ============================================================
   Checkout — деловой стиль (Stripe / Shopify checkout)
   Бренд: поменяйте --ck-accent и --ck-heading в :root
   ============================================================ */

:root {
  --ck-font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue",
    Arial, sans-serif;

  --ck-accent: #635bff;
  --ck-accent-hover: #5851db;
  --ck-accent-focus: rgba(99, 91, 255, 0.25);

  --ck-heading: #1a1f36;
  --ck-text: #3c4257;
  --ck-text-muted: #697386;
  --ck-text-faint: #8792a2;

  --ck-bg: #f6f9fc;
  --ck-surface: #ffffff;
  --ck-panel: #f7fafc;
  --ck-border: #e3e8ee;
  --ck-border-input: #cfd7df;

  --ck-radius: 8px;
  --ck-radius-input: 5px;
  --ck-shadow: 0 1px 3px rgba(50, 50, 93, 0.06), 0 1px 2px rgba(0, 0, 0, 0.04);

  --ck-max: 980px;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--ck-font);
  font-size: 15px;
  line-height: 1.5;
  color: var(--ck-text);
  background: var(--ck-bg);
  -webkit-font-smoothing: antialiased;
}

/* ----- Header ----- */
.ck-header {
  background: var(--ck-surface);
  border-bottom: 1px solid var(--ck-border);
}

.ck-header-inner {
  max-width: var(--ck-max);
  margin: 0 auto;
  padding: 1rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.ck-brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.ck-logo-mark {
  display: none;
}

.ck-logo {
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--ck-heading);
}

.ck-secure-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.8125rem;
  font-weight: 400;
  color: var(--ck-text-muted);
}

.ck-secure-badge svg {
  width: 13px;
  height: 13px;
  flex-shrink: 0;
  opacity: 0.85;
}

/* ----- Main: единый блок checkout ----- */
.ck-main {
  max-width: var(--ck-max);
  margin: 0 auto;
  padding: 2rem 1.5rem 2.5rem;
}

.ck-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(260px, 380px);
  background: var(--ck-surface);
  border: 1px solid var(--ck-border);
  border-radius: var(--ck-radius);
  box-shadow: var(--ck-shadow);
  overflow: hidden;
}

@media (max-width: 820px) {
  .ck-layout {
    grid-template-columns: 1fr;
  }

  .ck-summary {
    border-left: none !important;
    border-top: 1px solid var(--ck-border);
  }
}

.ck-card {
  background: transparent;
  border: none;
  border-radius: 0;
  box-shadow: none;
  padding: 0;
}

.ck-card--payment {
  padding: 2rem 2rem 2.25rem;
}

.ck-card-title {
  margin: 0 0 1.5rem;
  font-size: 1.125rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--ck-heading);
}

.ck-section-label {
  display: none;
}

.ck-card h1 {
  margin: 0 0 0.5rem;
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--ck-heading);
}

.ck-intro {
  color: var(--ck-text-muted);
  margin: 0 0 1.25rem;
  font-size: 0.9375rem;
}

/* ----- Order summary (правая колонка) ----- */
.ck-summary {
  position: sticky;
  top: 0;
  align-self: start;
  background: var(--ck-panel);
  border-left: 1px solid var(--ck-border);
  min-height: 100%;
}

.ck-summary-head {
  padding: 2rem 1.5rem 0.75rem;
  background: transparent;
  border: none;
}

.ck-summary h2 {
  margin: 0;
  font-size: 0.8125rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--ck-text-muted);
}

.ck-summary-body {
  padding: 0 1.5rem;
}

.ck-summary dl {
  margin: 0;
}

.ck-summary-row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 1rem;
  padding: 0.5rem 0;
  border-bottom: none;
}

.ck-summary dt {
  font-size: 0.875rem;
  color: var(--ck-text-muted);
  font-weight: 400;
  margin: 0;
}

.ck-summary dd {
  margin: 0;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--ck-heading);
  text-align: right;
  word-break: break-word;
}

.ck-total-wrap {
  margin: 1.25rem 0 0;
  padding: 1.25rem 1.5rem 2rem;
  background: transparent;
  border-top: 1px solid var(--ck-border);
}

.ck-total-label {
  display: block;
  font-size: 0.875rem;
  font-weight: 400;
  color: var(--ck-text-muted);
  margin-bottom: 0.35rem;
}

.ck-total {
  margin: 0;
  font-size: 1.375rem;
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--ck-heading);
  line-height: 1.25;
}

.ck-total .ck-currency {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--ck-text-muted);
  margin-left: 0.25rem;
}

/* ----- Footer ----- */
.ck-footer {
  max-width: var(--ck-max);
  margin: 0 auto;
  padding: 0 1.5rem 2rem;
  text-align: center;
}

.ck-footer p {
  margin: 0;
  font-size: 0.75rem;
  color: var(--ck-text-faint);
  line-height: 1.5;
}

/* ----- Misc ----- */
.ck-empty {
  text-align: center;
  padding: 2rem 1rem;
}

.ck-btn {
  display: inline-block;
  padding: 0.625rem 1rem;
  border-radius: var(--ck-radius-input);
  border: 0;
  background: var(--ck-accent);
  color: #fff;
  font-size: 0.9375rem;
  font-weight: 500;
  cursor: pointer;
  text-decoration: none;
  transition: background 0.15s ease;
}

.ck-btn:hover {
  background: var(--ck-accent-hover);
}

.ck-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

@media (max-width: 480px) {
  .ck-main {
    padding: 1rem 0.75rem 1.5rem;
  }

  .ck-layout {
    border-radius: 0;
    border-left: none;
    border-right: none;
  }

  .ck-card--payment {
    padding: 1.5rem 1.25rem;
  }
}