/* Ruffnet Cart — shared mockup styles
   Bootstrap 5 + Ruffnet Dark théma override
*/

:root {
  --rf-primary: #1062FE;
  --rf-primary-hover: #0d52d4;
  --rf-bg: #121212;
  --rf-bg-elev: #1a1a1a;
  --rf-bg-elev2: #232323;
  --rf-border: #2a2a2a;
  --rf-text: #ebebeb;
  --rf-text-muted: #888;
  --rf-text-dim: #666;
  --rf-success: #28a745;
  --rf-warning: #ffc107;
  --rf-danger: #dc3545;
  --rf-radius: 8px;
}

* { box-sizing: border-box; }

body {
  background: var(--rf-bg);
  color: var(--rf-text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  margin: 0;
  padding: 0;
  line-height: 1.5;
}

a { color: var(--rf-primary); text-decoration: none; }
a:hover { color: var(--rf-primary-hover); text-decoration: underline; }

/* === Sticky header === */
.rf-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(18,18,18,0.95);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--rf-border);
}
.rf-header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 1280px;
  margin: 0 auto;
  padding: 14px 24px;
}
.rf-logo {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--rf-text);
}
.rf-logo span { color: var(--rf-primary); }
.rf-nav {
  display: flex;
  gap: 28px;
  flex: 1;
  justify-content: center;
}
.rf-nav a {
  color: var(--rf-text);
  font-weight: 500;
  font-size: 0.95rem;
}
.rf-nav a:hover { color: var(--rf-primary); text-decoration: none; }

.rf-cart-btn {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 18px;
  border-radius: var(--rf-radius);
  background: var(--rf-bg-elev);
  border: 1px solid var(--rf-border);
  color: var(--rf-text);
  cursor: pointer;
  font-weight: 500;
  transition: all 0.15s;
}
.rf-cart-btn:hover {
  background: var(--rf-bg-elev2);
  border-color: var(--rf-primary);
  color: var(--rf-text);
  text-decoration: none;
}
.rf-cart-btn-icon {
  position: relative;
  font-size: 1.1rem;
}
.rf-cart-badge {
  position: absolute;
  top: -8px;
  right: -10px;
  min-width: 18px;
  height: 18px;
  background: var(--rf-primary);
  color: #fff;
  border-radius: 9px;
  font-size: 0.7rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 5px;
}
.rf-cart-total {
  font-weight: 600;
  font-size: 0.95rem;
}
.rf-cart-divider {
  color: var(--rf-text-dim);
  margin: 0 2px;
}

/* === Container === */
.rf-container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 32px 24px;
}

/* === Page heading === */
.rf-page-heading {
  margin-bottom: 32px;
}
.rf-page-heading h1 {
  font-size: 2rem;
  font-weight: 700;
  margin: 0 0 8px 0;
}
.rf-page-heading .subtitle {
  color: var(--rf-text-muted);
  font-size: 1rem;
}

/* === Cards === */
.rf-card {
  background: var(--rf-bg-elev);
  border: 1px solid var(--rf-border);
  border-radius: var(--rf-radius);
  padding: 24px;
}
.rf-card-flat {
  background: var(--rf-bg-elev);
  border: 1px solid var(--rf-border);
  border-radius: var(--rf-radius);
}

/* === Cart item === */
.rf-cart-item {
  background: var(--rf-bg-elev);
  border: 1px solid var(--rf-border);
  border-radius: var(--rf-radius);
  padding: 20px 24px;
  margin-bottom: 12px;
  display: flex;
  align-items: flex-start;
  gap: 16px;
  transition: border-color 0.15s;
}
.rf-cart-item:hover { border-color: var(--rf-primary); }
.rf-cart-item-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--rf-radius);
  background: var(--rf-bg-elev2);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  color: var(--rf-primary);
  flex-shrink: 0;
}
.rf-cart-item-body {
  flex: 1;
}
.rf-cart-item-title {
  font-weight: 600;
  font-size: 1.05rem;
  margin-bottom: 4px;
}
.rf-cart-item-meta {
  color: var(--rf-text-muted);
  font-size: 0.9rem;
  margin-bottom: 8px;
}
.rf-cart-item-domain {
  color: var(--rf-text-muted);
  font-size: 0.85rem;
  display: flex;
  align-items: center;
  gap: 8px;
}
.rf-cart-item-domain i { color: var(--rf-primary); }
.rf-cart-item-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: 12px;
}
.rf-cart-item-actions a {
  color: var(--rf-text-muted);
  font-size: 0.85rem;
}
.rf-cart-item-actions a:hover {
  color: var(--rf-primary);
}
.rf-cart-item-price {
  font-size: 1.1rem;
  font-weight: 600;
  text-align: right;
  white-space: nowrap;
}
.rf-cart-item-price-period {
  font-size: 0.8rem;
  font-weight: 400;
  color: var(--rf-text-muted);
}

/* === Summary sidebar === */
.rf-summary {
  background: var(--rf-bg-elev);
  border: 1px solid var(--rf-border);
  border-radius: var(--rf-radius);
  padding: 24px;
  position: sticky;
  top: 90px;
}
.rf-summary h3 {
  margin: 0 0 16px 0;
  font-size: 1.1rem;
  font-weight: 700;
}
.rf-summary-row {
  display: flex;
  justify-content: space-between;
  margin: 8px 0;
  font-size: 0.95rem;
  color: var(--rf-text);
}
.rf-summary-row.muted {
  color: var(--rf-text-muted);
}
.rf-summary-divider {
  height: 1px;
  background: var(--rf-border);
  margin: 14px 0;
}
.rf-summary-total {
  font-weight: 700;
  font-size: 1.2rem;
}
.rf-btn-checkout {
  display: block;
  width: 100%;
  background: var(--rf-primary);
  color: #fff;
  border: none;
  border-radius: var(--rf-radius);
  padding: 14px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  text-align: center;
  margin-top: 16px;
  transition: background 0.15s;
}
.rf-btn-checkout:hover {
  background: var(--rf-primary-hover);
  color: #fff;
  text-decoration: none;
}
.rf-btn-secondary {
  display: block;
  width: 100%;
  background: transparent;
  color: var(--rf-text-muted);
  border: 1px solid var(--rf-border);
  border-radius: var(--rf-radius);
  padding: 10px;
  font-size: 0.9rem;
  text-align: center;
  margin-top: 8px;
  cursor: pointer;
  transition: all 0.15s;
}
.rf-btn-secondary:hover {
  border-color: var(--rf-primary);
  color: var(--rf-text);
  text-decoration: none;
}

/* === Cross-link banner === */
.rf-banner {
  background: linear-gradient(135deg, rgba(16,98,254,0.1), rgba(16,98,254,0.05));
  border: 1px solid rgba(16,98,254,0.3);
  border-radius: var(--rf-radius);
  padding: 20px 24px;
  margin: 24px 0;
  display: flex;
  align-items: center;
  gap: 16px;
}
.rf-banner-icon {
  font-size: 1.8rem;
  color: var(--rf-primary);
  flex-shrink: 0;
}
.rf-banner-body { flex: 1; }
.rf-banner-title {
  font-weight: 600;
  margin-bottom: 4px;
}
.rf-banner-text {
  color: var(--rf-text-muted);
  font-size: 0.9rem;
}
.rf-banner-action {
  background: var(--rf-primary);
  color: #fff;
  padding: 10px 20px;
  border-radius: var(--rf-radius);
  font-size: 0.9rem;
  font-weight: 600;
  white-space: nowrap;
}
.rf-banner-action:hover { background: var(--rf-primary-hover); color: #fff; text-decoration: none; }

/* === Frequently bought together === */
.rf-fbt {
  margin-top: 40px;
}
.rf-fbt-heading {
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 16px;
}
.rf-fbt-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}
@media (max-width: 992px) {
  .rf-fbt-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 576px) {
  .rf-fbt-grid { grid-template-columns: 1fr; }
}
.rf-fbt-card {
  background: var(--rf-bg-elev);
  border: 1px solid var(--rf-border);
  border-radius: var(--rf-radius);
  padding: 20px;
  display: flex;
  flex-direction: column;
  transition: all 0.15s;
}
.rf-fbt-card:hover {
  border-color: var(--rf-primary);
  transform: translateY(-2px);
}
.rf-fbt-card-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--rf-radius);
  background: rgba(16,98,254,0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  color: var(--rf-primary);
  margin-bottom: 14px;
}
.rf-fbt-card-title {
  font-weight: 600;
  font-size: 1rem;
  margin-bottom: 4px;
}
.rf-fbt-card-desc {
  color: var(--rf-text-muted);
  font-size: 0.85rem;
  margin-bottom: 14px;
  flex: 1;
}
.rf-fbt-card-price {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 10px;
}
.rf-fbt-card-price small {
  font-size: 0.75rem;
  color: var(--rf-text-muted);
  font-weight: 400;
}
.rf-badge {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 12px;
  font-size: 0.7rem;
  font-weight: 600;
  background: rgba(40,167,69,0.2);
  color: var(--rf-success);
  margin-bottom: 10px;
}
.rf-badge.warning {
  background: rgba(255,193,7,0.2);
  color: var(--rf-warning);
}
.rf-btn-add {
  background: transparent;
  border: 1px solid var(--rf-primary);
  color: var(--rf-primary);
  border-radius: var(--rf-radius);
  padding: 8px 16px;
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.15s;
  width: 100%;
  text-align: center;
}
.rf-btn-add:hover {
  background: var(--rf-primary);
  color: #fff;
  text-decoration: none;
}
.rf-btn-add-success {
  background: var(--rf-success);
  border-color: var(--rf-success);
  color: #fff;
}

/* === Domain Connect step === */
.rf-tabs {
  display: flex;
  gap: 8px;
  border-bottom: 1px solid var(--rf-border);
  margin-bottom: 24px;
}
.rf-tab {
  padding: 12px 24px;
  color: var(--rf-text-muted);
  font-weight: 500;
  cursor: pointer;
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
  transition: all 0.15s;
}
.rf-tab.active {
  color: var(--rf-primary);
  border-bottom-color: var(--rf-primary);
}
.rf-tab:hover:not(.active) {
  color: var(--rf-text);
}

.rf-form-group {
  margin-bottom: 16px;
}
.rf-form-label {
  display: block;
  font-size: 0.9rem;
  font-weight: 500;
  margin-bottom: 6px;
  color: var(--rf-text);
}
.rf-form-control {
  width: 100%;
  padding: 12px 14px;
  background: var(--rf-bg);
  border: 1px solid var(--rf-border);
  border-radius: var(--rf-radius);
  color: var(--rf-text);
  font-size: 1rem;
  transition: border-color 0.15s;
}
.rf-form-control:focus {
  outline: none;
  border-color: var(--rf-primary);
}
.rf-form-help {
  font-size: 0.85rem;
  color: var(--rf-text-muted);
  margin-top: 6px;
}
.rf-form-help a {
  font-size: 0.85rem;
  color: var(--rf-text-dim);
  text-decoration: underline;
}
.rf-btn-primary {
  background: var(--rf-primary);
  color: #fff;
  border: none;
  border-radius: var(--rf-radius);
  padding: 12px 24px;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.15s;
}
.rf-btn-primary:hover { background: var(--rf-primary-hover); color: #fff; text-decoration: none; }
.rf-btn-primary:disabled {
  background: var(--rf-bg-elev2);
  color: var(--rf-text-dim);
  cursor: not-allowed;
}

/* === Domain search results === */
.rf-domain-result {
  background: var(--rf-bg-elev2);
  border: 1px solid var(--rf-border);
  border-radius: var(--rf-radius);
  padding: 14px 18px;
  margin-bottom: 8px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}
.rf-domain-result.unavailable {
  opacity: 0.6;
}
.rf-domain-result.selected {
  border-color: var(--rf-primary);
  background: rgba(16,98,254,0.05);
}
.rf-domain-name {
  font-weight: 500;
  font-size: 1rem;
}
.rf-domain-status {
  font-size: 0.8rem;
}
.rf-domain-status.available { color: var(--rf-success); }
.rf-domain-status.unavailable { color: var(--rf-text-dim); }
.rf-domain-price {
  font-weight: 600;
  font-size: 0.95rem;
  margin-right: 8px;
}
.rf-domain-price small {
  font-weight: 400;
  color: var(--rf-text-muted);
  font-size: 0.75rem;
}

/* === Empty cart welcome === */
.rf-welcome {
  text-align: center;
  padding: 40px 24px;
}
.rf-welcome h1 {
  font-size: 2.4rem;
  font-weight: 700;
  margin: 0 0 12px 0;
}
.rf-welcome .subtitle {
  font-size: 1.1rem;
  color: var(--rf-text-muted);
  margin-bottom: 32px;
}
.rf-search-hero {
  max-width: 720px;
  margin: 0 auto 48px;
  display: flex;
  background: var(--rf-bg-elev);
  border: 2px solid var(--rf-border);
  border-radius: var(--rf-radius);
  padding: 6px;
  transition: border-color 0.15s;
}
.rf-search-hero:focus-within { border-color: var(--rf-primary); }
.rf-search-hero input {
  flex: 1;
  background: transparent;
  border: none;
  color: var(--rf-text);
  padding: 14px 18px;
  font-size: 1.05rem;
}
.rf-search-hero input:focus { outline: none; }
.rf-search-hero button {
  background: var(--rf-primary);
  color: #fff;
  border: none;
  border-radius: 6px;
  padding: 12px 28px;
  font-weight: 600;
  cursor: pointer;
}
.rf-search-hero button:hover { background: var(--rf-primary-hover); }

/* === Footer (for mockup completeness) === */
.rf-footer {
  border-top: 1px solid var(--rf-border);
  background: #0a0a0a;
  padding: 32px 24px;
  margin-top: 64px;
  color: var(--rf-text-dim);
  font-size: 0.85rem;
  text-align: center;
}

/* === Grid layouts (responsive) === */
.rf-grid-with-sidebar {
  display: grid;
  grid-template-columns: 1fr 360px;
  gap: 32px;
}
@media (max-width: 992px) {
  .rf-grid-with-sidebar {
    grid-template-columns: 1fr;
  }
  .rf-summary {
    position: static;
  }
}

/* Mobile === */
@media (max-width: 768px) {
  .rf-nav { display: none; }
  .rf-cart-btn { padding: 8px 12px; }
  .rf-cart-total { display: none; }
  .rf-cart-divider { display: none; }
  .rf-page-heading h1 { font-size: 1.5rem; }
  .rf-welcome h1 { font-size: 1.8rem; }
  .rf-search-hero { flex-direction: column; }
  .rf-search-hero button { width: 100%; margin-top: 6px; }
  .rf-banner { flex-direction: column; align-items: flex-start; }
  .rf-cart-item { flex-direction: column; }
  .rf-cart-item-price { align-self: stretch; text-align: left; padding-top: 8px; border-top: 1px solid var(--rf-border); }
  .rf-container { padding: 20px 16px; }
  .rf-domain-result { flex-direction: column; align-items: flex-start; gap: 10px; }
}