/* ==========================
   VNet Designer Styles
   Grid of calculator cards
   ========================== */

/* Card grid */
.vnet-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(560px, 1fr));
    gap: 1rem;
    align-items: start;
}

@media (max-width: 600px) {
    .vnet-grid {
        grid-template-columns: 1fr;
    }
}

/* Each VNet card */
.vnet-card {
    background: var(--panel);
    border: 1px solid var(--panel-border);
    border-radius: 14px;
    box-shadow: var(--shadow);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    overflow: hidden;
    transition: box-shadow 0.2s ease;
}

.vnet-card:hover {
    box-shadow: 0 12px 32px rgba(2, 6, 23, .12);
}

:root[data-theme="dark"] .vnet-card:hover {
    box-shadow: 0 12px 32px rgba(2, 6, 23, .5);
}

/* Card header bar */
.vnet-card-header {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1rem;
    border-bottom: 1px solid var(--panel-border);
    background: color-mix(in oklab, var(--accent) 5%, transparent);
}

.drag-handle {
    cursor: grab;
    color: var(--muted);
    font-size: 1.1rem;
    line-height: 1;
    user-select: none;
    opacity: 0.5;
    transition: opacity 0.15s;
}

.drag-handle:hover {
    opacity: 1;
}

.vnet-card.drag-over {
    outline: 2px dashed var(--accent);
    outline-offset: -2px;
}

.vnet-card-header .vnet-name {
    font-weight: 600;
    font-size: 0.95rem;
    flex: 1;
    min-width: 0;
}

.vnet-card-header .vnet-name input {
    border: none;
    background: transparent;
    font-weight: 600;
    font-size: 0.95rem;
    color: var(--fg);
    width: 100%;
    padding: 0.1rem 0;
}

.vnet-card-header .vnet-name input:focus {
    outline: none;
    border-bottom: 1.5px solid var(--accent);
}

.role-badge {
    font-size: 0.7rem;
    font-weight: 600;
    padding: 0.15rem 0.4rem;
    border-radius: 4px;
    text-transform: uppercase;
    white-space: nowrap;
}

.role-badge.hub {
    background: color-mix(in oklab, #f59e0b 20%, transparent);
    color: #f59e0b;
}

.role-badge.spoke {
    background: color-mix(in oklab, var(--accent) 15%, transparent);
    color: var(--accent);
}

/* Card body */
.vnet-card-body {
    padding: 0.75rem 1rem;
}

/* CIDR input row */
.cidr-row {
    display: flex;
    gap: 0.4rem;
    align-items: center;
    margin-bottom: 0.6rem;
}

.cidr-row input {
    flex: 1;
    font-family: 'SF Mono', 'Fira Code', 'Cascadia Code', monospace;
    font-size: 0.88rem;
}

/* Region select */
.region-row {
    display: flex;
    gap: 0.4rem;
    align-items: center;
    margin-bottom: 0.6rem;
}

.region-row select {
    flex: 1;
    font-size: 0.85rem;
}

.region-row label,
.role-row label {
    font-size: 0.82rem;
    color: var(--muted);
    white-space: nowrap;
    min-width: 50px;
}

.role-row {
    display: flex;
    gap: 0.4rem;
    align-items: center;
    margin-bottom: 0.6rem;
}

.role-row select {
    font-size: 0.85rem;
}

/* Subnet table inside a card */
.vnet-card .table-wrap {
    margin: 0 -1rem;
    padding: 0 1rem;
}

.vnet-card table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.78rem;
    table-layout: fixed;
}

.vnet-card th {
    text-align: left;
    padding: 0.25rem 0.35rem;
    border-bottom: 1.5px solid var(--panel-border);
    color: var(--muted);
    font-weight: 500;
    font-size: 0.78rem;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    white-space: nowrap;
}

.vnet-card td {
    padding: 0.2rem 0.35rem;
    overflow: hidden;
    text-overflow: ellipsis;
    border-bottom: 1px solid color-mix(in oklab, var(--panel-border) 50%, transparent);
    white-space: nowrap;
}

.editable-label {
    cursor: text;
    border-bottom: 1px dashed transparent;
    transition: border-color 0.15s;
}

.editable-label:hover {
    border-bottom-color: var(--accent);
}

.vnet-card tr:hover td {
    background: var(--table-hover);
}

.vnet-card .mono {
    font-family: 'SF Mono', 'Fira Code', 'Cascadia Code', monospace;
    font-size: 0.82rem;
}

/* Action buttons in table */
.vnet-card .row-actions {
    display: flex;
    align-items: center;
    gap: 0.2rem;
}

.vnet-card .row-actions .indent {
    color: var(--muted);
    font-size: 0.75rem;
    user-select: none;
}

/* Card toolbar */
.card-toolbar {
    display: flex;
    gap: 0.3rem;
    margin-bottom: 0.5rem;
    flex-wrap: wrap;
}

.card-toolbar button {
    font-size: 0.78rem;
    padding: 0.25rem 0.45rem;
}

/* Add-card button (dashed border placeholder) */
.add-vnet-card {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 180px;
    border: 2px dashed var(--panel-border);
    border-radius: 14px;
    cursor: pointer;
    transition: border-color 0.2s ease, background 0.2s ease;
    color: var(--muted);
    font-size: 0.95rem;
    gap: 0.5rem;
}

.add-vnet-card:hover {
    border-color: var(--accent);
    background: color-mix(in oklab, var(--accent) 5%, transparent);
    color: var(--accent);
}

/* Top toolbar */
.designer-toolbar {
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
    align-items: center;
    margin-bottom: 0.75rem;
}

/* Toast */
.toast {
    position: fixed;
    right: 18px;
    bottom: 18px;
    z-index: 9999;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.toast .item {
    background: var(--panel);
    border: 1px solid var(--panel-border);
    color: var(--fg);
    padding: .6rem .75rem;
    border-radius: 10px;
    box-shadow: var(--shadow);
    animation: slide-in .25s ease, fade-out .2s ease 2.4s forwards;
    display: flex;
    align-items: center;
    gap: .5rem;
}

@keyframes slide-in {
    from {
        transform: translateY(6px);
        opacity: 0;
    }

    to {
        transform: translateY(0);
        opacity: 1;
    }
}

@keyframes fade-out {
    to {
        opacity: 0;
        transform: translateY(6px);
    }
}

/* Warning */
.warning-banner {
    background: color-mix(in oklab, #f59e0b 12%, transparent);
    border: 1px solid color-mix(in oklab, #f59e0b 30%, transparent);
    color: #f59e0b;
    padding: 0.5rem 0.75rem;
    border-radius: 8px;
    font-size: 0.85rem;
    margin-bottom: 0.75rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

/* Stat summary */
.topology-summary {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    margin-bottom: 0.75rem;
    font-size: 0.88rem;
    color: var(--muted);
}

.topology-summary .stat {
    display: flex;
    align-items: center;
    gap: 0.35rem;
}

.topology-summary .stat strong {
    color: var(--fg);
}