/* ==========================================================================
   KBilling Order Form & Checkout Stylesheet — kb-cart.css
   Modern Executive Cloud & Billing Checkout Design System
   ========================================================================== */

:root {
    --kbc-navy: #0f172a;
    --kbc-navy-light: #1e293b;
    --kbc-primary: #2563eb;
    --kbc-primary-hover: #1d4ed8;
    --kbc-primary-light: #eff6ff;
    --kbc-primary-border: #bfdbfe;
    --kbc-success: #059669;
    --kbc-success-hover: #047857;
    --kbc-success-light: #ecfdf5;
    --kbc-danger: #dc2626;
    --kbc-warning: #d97706;
    --kbc-border: #e2e8f0;
    --kbc-border-light: #f1f5f9;
    --kbc-bg: #ffffff;
    --kbc-bg-alt: #f8fafc;
    --kbc-text: #0f172a;
    --kbc-text-secondary: #334155;
    --kbc-muted: #64748b;
    --kbc-radius: 14px;
    --kbc-radius-sm: 10px;
}

/* ---------- Executive Checkout Header Banner ---------- */
.kbc-checkout-hero {
    background: linear-gradient(135deg, #090d16 0%, #0f172a 55%, #1e3a8a 100%);
    border-radius: 16px;
    padding: 1.5rem 1.75rem;
    color: #ffffff;
    margin-bottom: 1.35rem;
    border: 1px solid rgba(148, 163, 184, 0.18);
    box-shadow: 0 14px 28px -10px rgba(15, 23, 42, 0.35);
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
}
.kbc-checkout-hero-title {
    font-size: 1.45rem;
    font-weight: 800;
    letter-spacing: -0.02em;
    color: #ffffff;
    margin: 0 0 0.25rem 0;
}
.kbc-checkout-hero-sub {
    color: #94a3b8;
    font-size: 0.88rem;
    margin: 0;
}
.kbc-trust-pills {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}
.kbc-trust-pill {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.14);
    border-radius: 999px;
    padding: 0.38rem 0.85rem;
    font-size: 0.78rem;
    font-weight: 600;
    color: #e2e8f0;
}
.kbc-trust-pill i {
    color: #34d399;
}

/* ---------- 4-Step Order Progress Bar ---------- */
.kbc-steps {
    display: flex;
    list-style: none;
    padding: 0;
    margin: 0 0 1.5rem 0;
    border: 1px solid var(--kbc-border);
    border-radius: var(--kbc-radius);
    background: #ffffff;
    overflow: hidden;
    box-shadow: 0 2px 6px rgba(15, 23, 42, 0.04);
}
.kbc-step {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0.9rem 1rem;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--kbc-muted);
    border-right: 1px solid var(--kbc-border);
    background: #f8fafc;
    text-align: left;
    gap: 0.7rem;
    position: relative;
    transition: all 0.15s ease;
}
.kbc-step:last-child { border-right: none; }
.kbc-step.is-done {
    color: var(--kbc-success);
    background: #f0fdf4;
    font-weight: 700;
}
.kbc-step.is-active {
    color: var(--kbc-primary);
    background: #ffffff;
    font-weight: 800;
    box-shadow: inset 0 -3px 0 var(--kbc-primary);
}
.kbc-step-num {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 30px;
    height: 30px;
    border-radius: 9px;
    background: #e2e8f0;
    color: #475569;
    font-size: 0.8rem;
    font-weight: 800;
    flex-shrink: 0;
}
.kbc-step.is-active .kbc-step-num {
    background: linear-gradient(135deg, #2563eb 0%, #1d4ed8 100%);
    color: #ffffff;
    box-shadow: 0 4px 10px rgba(37, 99, 235, 0.3);
}
.kbc-step.is-done .kbc-step-num {
    background: var(--kbc-success);
    color: #ffffff;
}
.kbc-step-sub {
    display: block;
    font-size: 0.7rem;
    font-weight: 500;
    color: #94a3b8;
    line-height: 1.1;
}

/* ---------- Order Form Panels ---------- */
.kbc-panel {
    background: #ffffff;
    border: 1px solid var(--kbc-border);
    border-radius: var(--kbc-radius);
    margin-bottom: 1.25rem;
    box-shadow: 0 2px 8px rgba(15, 23, 42, 0.04);
    overflow: hidden;
}
.kbc-panel-heading {
    padding: 0.95rem 1.35rem;
    background: #f8fafc;
    border-bottom: 1px solid var(--kbc-border);
    font-weight: 700;
    font-size: 0.92rem;
    color: var(--kbc-text);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
}
.kbc-panel-heading i { color: var(--kbc-primary); }
.kbc-panel-body { padding: 1.35rem; }
.kbc-panel-footer {
    padding: 0.95rem 1.35rem;
    background: #f8fafc;
    border-top: 1px solid var(--kbc-border);
}

/* Sidebar Navigation List inside Cart */
.kbc-list { display: flex; flex-direction: column; }
.kbc-list-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.72rem 1.15rem;
    color: var(--kbc-text-secondary);
    font-size: 0.86rem;
    font-weight: 600;
    border-bottom: 1px solid var(--kbc-border-light);
    text-decoration: none;
    transition: all 0.14s ease;
}
.kbc-list-item:last-child { border-bottom: 0; }
.kbc-list-item:hover {
    background: #f8fafc;
    color: var(--kbc-primary);
    text-decoration: none;
}
.kbc-list-item.is-active {
    background: var(--kbc-primary-light);
    color: var(--kbc-primary);
    font-weight: 700;
    box-shadow: inset 3px 0 0 var(--kbc-primary);
}

/* ---------- Sticky Order Summary Sidebar ---------- */
.kbc-summary {
    position: sticky;
    top: 86px;
    border: 1px solid #cbd5e1;
    box-shadow: 0 14px 32px -10px rgba(15, 23, 42, 0.12);
}
.kbc-summary .kbc-panel-heading {
    background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
    color: #ffffff;
    border-bottom-color: #1e293b;
    padding: 1.05rem 1.35rem;
}
.kbc-summary .kbc-panel-heading i { color: #38bdf8; }
.kbc-summary .kbc-badge {
    background: #2563eb;
    color: #ffffff;
}
.kbc-summary-items {
    list-style: none;
    padding: 0;
    margin: 0 0 14px 0;
}
.kbc-summary-items li {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    padding: 0.65rem 0;
    border-bottom: 1px dashed var(--kbc-border);
    font-size: 0.86rem;
    gap: 10px;
}
.kbc-summary-items li:last-child { border-bottom: none; }
.kbc-summary-item-name {
    font-weight: 700;
    color: var(--kbc-text);
}
.kbc-summary-item-name small {
    display: block;
    font-weight: 500;
    color: var(--kbc-muted);
    font-size: 0.76rem;
    margin-top: 2px;
}
.kbc-summary-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.86rem;
    padding: 0.42rem 0;
    color: var(--kbc-text-secondary);
    font-variant-numeric: tabular-nums;
}
.kbc-summary-divider {
    border-top: 1px solid var(--kbc-border);
    margin: 0.65rem 0;
}
.kbc-summary-total {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.92rem;
    font-weight: 800;
    color: #ffffff;
    padding: 1rem 1.15rem;
    background: linear-gradient(135deg, #0f172a 0%, #1e3a8a 100%);
    border-radius: 12px;
    margin-top: 0.85rem;
    box-shadow: 0 8px 18px -6px rgba(30, 58, 138, 0.4);
}
.kbc-summary-total strong {
    font-size: 1.45rem;
    font-weight: 850;
    color: #38bdf8;
    font-variant-numeric: tabular-nums;
}

/* ---------- Billing Cycle Radio Cards (Step 2 Configure) ---------- */
.kbc-cycle-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 0.85rem;
}
.kbc-cycle-card {
    position: relative;
    border: 1.5px solid var(--kbc-border);
    border-radius: 12px;
    padding: 1rem 1.15rem;
    background: #ffffff;
    cursor: pointer;
    transition: all 0.16s ease;
    display: flex;
    flex-direction: column;
    gap: 4px;
    margin: 0;
}
.kbc-cycle-card:hover {
    border-color: #93c5fd;
    background: #f8fafc;
}
.kbc-cycle-card.is-selected {
    border-color: var(--kbc-primary);
    background: var(--kbc-primary-light);
    box-shadow: 0 4px 14px -4px rgba(37, 99, 235, 0.2);
}
.kbc-cycle-card-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
}
.kbc-cycle-name {
    font-weight: 700;
    font-size: 0.88rem;
    color: var(--kbc-text);
    display: flex;
    align-items: center;
    gap: 8px;
}
.kbc-cycle-price {
    font-size: 1.25rem;
    font-weight: 850;
    color: var(--kbc-text);
    font-variant-numeric: tabular-nums;
    margin-top: 2px;
}
.kbc-cycle-card.is-selected .kbc-cycle-price { color: var(--kbc-primary-hover); }
.kbc-cycle-meta {
    font-size: 0.76rem;
    color: var(--kbc-muted);
}
.kbc-cycle-badge {
    font-size: 0.68rem;
    font-weight: 800;
    text-transform: uppercase;
    padding: 2px 7px;
    border-radius: 999px;
    background: var(--kbc-success-light);
    color: var(--kbc-success-hover);
    border: 1px solid #a7f3d0;
}

/* ---------- Domain Selection Option Cards (Step 2 Configure) ---------- */
.kbc-domain-option {
    border: 1.5px solid var(--kbc-border);
    border-radius: 12px;
    background: #ffffff;
    margin-bottom: 0.75rem;
    overflow: hidden;
    transition: all 0.16s ease;
}
.kbc-domain-option:last-child { margin-bottom: 0; }
.kbc-domain-option.is-selected {
    border-color: var(--kbc-primary);
    box-shadow: 0 4px 14px -4px rgba(37, 99, 235, 0.15);
}
.kbc-domain-option-head {
    padding: 0.9rem 1.15rem;
    display: flex;
    align-items: center;
    gap: 10px;
    cursor: pointer;
    font-weight: 700;
    font-size: 0.9rem;
    color: var(--kbc-text);
    margin: 0;
    width: 100%;
    background: #ffffff;
}
.kbc-domain-option.is-selected .kbc-domain-option-head {
    background: var(--kbc-primary-light);
    color: var(--kbc-primary-hover);
    border-bottom: 1px solid var(--kbc-primary-border);
}
.kbc-domain-option-body {
    padding: 1.15rem;
    background: #ffffff;
    display: none;
}
.kbc-domain-option.is-selected .kbc-domain-option-body {
    display: block;
}

/* ---------- Cart Review Item Rows (Step 3 View Cart) ---------- */
.kbc-item-title {
    font-size: 0.98rem;
    font-weight: 800;
    color: var(--kbc-text);
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
}
.kbc-item-group {
    font-size: 0.68rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    background: #eff6ff;
    color: #2563eb;
    border: 1px solid #bfdbfe;
    padding: 2px 8px;
    border-radius: 999px;
}
.kbc-item-domain {
    font-size: 0.82rem;
    color: var(--kbc-primary);
    font-family: "JetBrains Mono", monospace;
    font-weight: 600;
    margin-top: 4px;
}
.kbc-item-configs {
    list-style: none;
    padding: 0;
    margin: 8px 0 0;
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}
.kbc-item-configs li {
    font-size: 0.76rem;
    background: #f8fafc;
    border: 1px solid var(--kbc-border);
    padding: 3px 9px;
    border-radius: 6px;
    color: var(--kbc-text-secondary);
}

/* ---------- Cart Table ---------- */
.kbc-table {
    width: 100%;
    margin-bottom: 0;
    font-size: 0.88rem;
}
.kbc-table th {
    background: #f8fafc;
    border-bottom: 1px solid var(--kbc-border);
    padding: 0.75rem 1.25rem;
    font-weight: 700;
    font-size: 0.72rem;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--kbc-muted);
}
.kbc-table td {
    padding: 1rem 1.25rem;
    border-bottom: 1px solid var(--kbc-border-light);
    vertical-align: middle;
}
.kbc-table tr:last-child td { border-bottom: none; }

/* ---------- Gateway Selector Cards ---------- */
.kbc-gateway-group {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 0.85rem;
}
.kbc-gateway-card {
    border: 1.5px solid var(--kbc-border);
    border-radius: 12px;
    padding: 0.95rem 1.1rem;
    cursor: pointer;
    background: #ffffff;
    transition: all 0.16s ease;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin: 0;
}
.kbc-gateway-card:hover {
    border-color: #93c5fd;
    background: #f8fafc;
}
.kbc-gateway-card.is-selected {
    border-color: var(--kbc-primary);
    background: var(--kbc-primary-light);
    box-shadow: 0 4px 14px -4px rgba(37, 99, 235, 0.2);
}
.kbc-gateway-icon {
    width: 38px;
    height: 38px;
    border-radius: 10px;
    background: #f1f5f9;
    color: var(--kbc-text-secondary);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    flex-shrink: 0;
}
.kbc-gateway-card.is-selected .kbc-gateway-icon {
    background: var(--kbc-primary);
    color: #ffffff;
}

/* ---------- Custom Buttons & Badges ---------- */
.kbc-btn-success {
    background: linear-gradient(135deg, #10b981 0%, #059669 100%);
    border: 0;
    color: #ffffff;
    font-weight: 800;
    border-radius: 10px;
    padding: 0.78rem 1.25rem;
    font-size: 0.95rem;
    box-shadow: 0 8px 18px -4px rgba(5, 150, 105, 0.4) !important;
    transition: all 0.18s ease;
}
.kbc-btn-success:hover, .kbc-btn-success:focus {
    background: linear-gradient(135deg, #059669 0%, #047857 100%);
    color: #ffffff;
    transform: translateY(-1px);
}
.kbc-badge {
    background: #e2e8f0;
    color: #334155;
    font-size: 0.72rem;
    padding: 0.22rem 0.65rem;
    border-radius: 999px;
    font-weight: 700;
}
.kbc-text-success { color: var(--kbc-success) !important; }
.kbc-small { font-size: 0.76rem; }
.kbc-muted { color: var(--kbc-muted); }

@media (max-width: 767.98px) {
    .kbc-steps { flex-wrap: wrap; }
    .kbc-step { flex: 1 1 50%; border-bottom: 1px solid var(--kbc-border); }
    .kbc-cycle-grid { grid-template-columns: 1fr; }
}