/* Reference Architectures page — overrides on top of outbound-connectivity/styles.css */

/* No left sidebar on this page — reclaim full width for picker flow */
.content.no-sidebar {
    margin-left: 0;
    max-width: none;
}

.muted-note {
    margin-top: 12px;
    font-size: 0.85rem;
    color: var(--text-secondary);
    font-style: italic;
}

/* Per-purpose tenancy override panel (rendered when 2+ purposes are selected) */
.tenancy-overrides {
    margin-top: 18px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}
.tenancy-overrides:empty {
    display: none;
}
.tenancy-overrides-header {
    font-size: 0.78rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-secondary);
    margin-bottom: 4px;
}
.tenancy-override-row {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 10px 14px;
    border: 1px solid var(--border-color, rgba(255,255,255,0.08));
    border-radius: 10px;
    background: rgba(255,255,255,0.02);
}
.tenancy-override-label {
    flex: 1;
    font-weight: 500;
    color: var(--text-primary);
}
.tenancy-override-buttons {
    display: inline-flex;
    gap: 6px;
}
.tenancy-override-btn {
    padding: 6px 14px;
    border: 1px solid var(--border-color, rgba(255,255,255,0.15));
    background: transparent;
    color: var(--text-secondary);
    border-radius: 8px;
    font-size: 0.85rem;
    cursor: pointer;
    transition: background 0.15s, color 0.15s, border-color 0.15s;
}
.tenancy-override-btn:hover {
    color: var(--text-primary);
    border-color: var(--accent-blue, #29a3d8);
}
.tenancy-override-btn.selected {
    background: linear-gradient(135deg, #2bc4a6, #29a3d8);
    color: #fff;
    border-color: transparent;
    font-weight: 600;
}

.summary-tenancy {
    color: var(--text-secondary);
    font-weight: 400;
    font-size: 0.9em;
}

/* Per-purpose scale & topology pickers — one row per selected purpose */
.scale-per-purpose {
    display: flex;
    flex-direction: column;
    gap: 18px;
}
.scale-empty-hint {
    padding: 14px 16px;
    border: 1px dashed var(--border-color, rgba(255,255,255,0.12));
    border-radius: 10px;
    color: var(--text-secondary);
    font-style: italic;
    font-size: 0.9rem;
}
.scale-purpose-row {
    display: flex;
    flex-direction: column;
    gap: 8px;
}
.scale-purpose-label {
    font-size: 0.78rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-secondary);
}
.scale-purpose-grid {
    margin-top: 0;
}

/* Multi-purpose scale card: not directly clickable; per-purpose toggles inside */
.pick-card.pick-card--multi {
    cursor: default;
}
.pick-card.pick-card--multi:hover {
    /* Suppress the clickable hover treatment on the card itself */
    transform: none;
}
/* Push the description to grow so purpose toggles align at the bottom */
.pick-card.pick-card--multi .pick-desc {
    flex: 1;
}
.scale-purpose-toggles {
    display: flex;
    flex-direction: column;
    gap: 6px;
    margin-top: 12px;
    padding-top: 10px;
    border-top: 1px solid var(--border-color, rgba(255, 255, 255, 0.08));
}
.scale-purpose-toggle {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 6px 8px;
    border: 1px solid var(--border-color, rgba(255, 255, 255, 0.12));
    border-radius: 6px;
    background: transparent;
    color: var(--text-secondary);
    font-size: 0.82rem;
    text-align: left;
    cursor: pointer;
    transition: background 0.15s ease, border-color 0.15s ease, color 0.15s ease;
}
.scale-purpose-toggle:hover {
    border-color: var(--accent-blue);
    color: var(--text-primary);
}
.scale-purpose-toggle.selected {
    background: rgba(0, 120, 212, 0.12);
    border-color: var(--accent-blue);
    color: var(--text-primary);
}
.scale-purpose-toggle-check {
    width: 14px;
    height: 14px;
    border-radius: 3px;
    border: 1.5px solid currentColor;
    flex: 0 0 14px;
    position: relative;
}
.scale-purpose-toggle.selected .scale-purpose-toggle-check {
    background: var(--accent-blue);
    border-color: var(--accent-blue);
}
.scale-purpose-toggle.selected .scale-purpose-toggle-check::after {
    content: '';
    position: absolute;
    left: 3px;
    top: 0;
    width: 5px;
    height: 9px;
    border: solid #fff;
    border-width: 0 2px 2px 0;
    transform: rotate(45deg);
}
.scale-purpose-toggle-icon {
    width: 18px;
    height: 18px;
    object-fit: contain;
    flex: 0 0 18px;
}
.scale-purpose-toggle-icon--stack {
    display: inline-flex;
    align-items: center;
    width: auto;
    flex: 0 0 auto;
}
.scale-purpose-toggle-icon--stack img {
    width: 16px;
    height: 16px;
    object-fit: contain;
    margin-right: -4px;
}
.scale-purpose-toggle-icon--stack img:last-child {
    margin-right: 0;
}
.scale-purpose-toggle-label {
    flex: 1;
    line-height: 1.2;
}

/* Storage selector inside the cluster-16 scale card */
.scale-storage-wrap {
    margin-top: 10px;
    padding-top: 10px;
    border-top: 1px dashed var(--glass-border);
    display: flex;
    flex-direction: column;
    gap: 6px;
}
.scale-storage-heading {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.06em;
}
.scale-storage-row {
    display: flex;
    align-items: center;
    gap: 6px;
    flex-wrap: wrap;
}
.scale-storage-purpose-label {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    font-size: 0.78rem;
    color: var(--text-primary);
    margin-right: 4px;
    flex: 0 0 auto;
}
.scale-storage-purpose-label img {
    width: 14px;
    height: 14px;
    object-fit: contain;
}
.scale-storage-chip {
    background: transparent;
    color: var(--text-secondary);
    border: 1px solid var(--glass-border);
    border-radius: 999px;
    padding: 3px 10px;
    font-size: 0.75rem;
    font-family: inherit;
    cursor: pointer;
    transition: all 0.15s ease;
}
.scale-storage-chip:hover {
    border-color: var(--accent-blue);
    color: var(--text-primary);
}
.scale-storage-chip.selected {
    background: rgba(0, 120, 212, 0.18);
    border-color: var(--accent-blue);
    color: var(--text-primary);
}
.scale-storage-chip.disabled,
.scale-storage-chip[disabled] {
    opacity: 0.4;
    cursor: not-allowed;
    pointer-events: none;
}

/* Cluster count selector (shares styles with storage selector) */
.scale-cluster-count-wrap {
    margin-top: 10px;
    padding-top: 10px;
    border-top: 1px dashed var(--glass-border);
    display: flex;
    flex-direction: column;
    gap: 6px;
}

/* Purpose / footprint grids */
.purpose-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 16px;
    margin-top: 16px;
}

/* Slide-52/61 styled business-purpose cards */
.purpose-cards {
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 20px;
    align-items: stretch;
}

.purpose-card {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 14px;
    padding: 28px 22px 22px;
    background: linear-gradient(160deg, rgba(120, 80, 220, 0.10), rgba(0, 120, 212, 0.06));
    border: 1px solid var(--glass-border);
    border-radius: 14px;
    color: var(--text-primary);
    font-family: inherit;
    cursor: pointer;
    transition: all 0.2s ease;
    box-shadow: 0 4px 14px rgba(0, 0, 0, 0.18);
}

.purpose-card:hover {
    border-color: rgba(0, 120, 212, 0.5);
    transform: translateY(-3px);
    box-shadow: 0 10px 26px rgba(0, 0, 0, 0.4);
}

.purpose-card:focus-visible {
    outline: 2px solid var(--accent-blue);
    outline-offset: 2px;
}

.purpose-card.selected {
    border-color: var(--accent-blue);
    box-shadow: 0 0 0 2px var(--accent-blue) inset, 0 10px 26px rgba(0, 120, 212, 0.25);
}

.purpose-card.recommended::after {
    content: 'Recommended';
    position: absolute;
    top: -10px;
    left: 14px;
    padding: 2px 10px;
    font-size: 0.7rem;
    background: var(--success);
    color: #04231a;
    border-radius: 10px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-weight: 700;
}

/* Foundry — slide 52 — stronger accent gradient frame */
.purpose-card-feature {
    background: linear-gradient(160deg, rgba(120, 80, 220, 0.18), rgba(0, 120, 212, 0.10));
}

.purpose-badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    padding: 4px 18px;
    font-size: 0.72rem;
    font-weight: 700;
    color: #fff;
    border-radius: 12px;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    z-index: 2;
}

.purpose-badge-new {
    background: linear-gradient(135deg, #2bc4a6, #29a3d8);
}

.purpose-badge-preview {
    background: linear-gradient(135deg, #2bc4a6, #29a3d8);
    text-transform: uppercase;
    padding: 4px 16px;
    border-radius: 12px;
    font-size: 0.72rem;
}

.purpose-icon-row {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    min-height: 56px;
    margin-top: 4px;
}

.purpose-icon-img {
    width: 64px;
    height: 64px;
    object-fit: contain;
    background: #fff;
    border-radius: 50%;
    padding: 8px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
}

.purpose-icon-stack {
    width: 48px;
    height: 48px;
    object-fit: contain;
    background: #fff;
    border-radius: 50%;
    padding: 6px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
}

.purpose-card-feature .purpose-icon-img {
    width: 72px;
    height: 72px;
    padding: 10px;
}

.purpose-title {
    font-size: 1.15rem;
    font-weight: 700;
    line-height: 1.25;
    color: var(--text-primary);
}

.purpose-subtitle {
    font-size: 0.92rem;
    color: var(--text-secondary);
    margin-top: -8px;
}

.purpose-desc {
    font-size: 0.85rem;
    color: var(--text-secondary);
    line-height: 1.5;
    flex-grow: 1;
}

.purpose-feature-chip {
    width: 100%;
    padding: 12px 14px;
    background: var(--subtle-bg);
    border: 1px solid var(--glass-border);
    border-radius: 10px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
}

.purpose-feature-icons {
    display: flex;
    gap: 12px;
    font-size: 1.4rem;
    color: var(--accent-purple);
}

.purpose-feature-label {
    font-weight: 700;
    font-size: 0.85rem;
    color: var(--text-primary);
}

.footprint-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 12px;
    margin-top: 12px;
    margin-bottom: 8px;
    align-items: stretch;
}

/* Slide-23 style "Azure Local (connected)" / "(disconnected)" cards */
.connectivity-cards {
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 18px;
}

.spc-card {
    position: relative;
    background: linear-gradient(160deg, rgba(120, 80, 220, 0.10), rgba(0, 120, 212, 0.06));
    border: 1px solid var(--glass-border);
    border-radius: 14px;
    padding: 22px 20px 20px;
    cursor: pointer;
    transition: all 0.2s ease;
    color: var(--text-primary);
    text-align: center;
    font-family: inherit;
    display: flex;
    flex-direction: column;
    align-items: stretch;
    gap: 10px;
}

.spc-card:hover {
    border-color: rgba(0, 120, 212, 0.5);
    transform: translateY(-2px);
    box-shadow: 0 8px 22px rgba(0, 0, 0, 0.4);
}

.spc-card:focus-visible {
    outline: 2px solid var(--accent-blue);
    outline-offset: 2px;
}

.spc-card.selected {
    border-color: var(--accent-blue);
    box-shadow: 0 0 0 2px var(--accent-blue) inset, 0 8px 22px rgba(0, 120, 212, 0.25);
}

.spc-card.recommended::before {
    content: 'Recommended';
    position: absolute;
    top: -10px;
    right: 14px;
    padding: 2px 10px;
    font-size: 0.7rem;
    background: var(--success);
    color: #04231a;
    border-radius: 10px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-weight: 700;
}

/* Disabled state for the connectivity card (e.g. disconnected when AVD is
   selected). Greys out the card, removes hover lift, and blocks the click
   handler from firing visually. */
.spc-card.disabled {
    opacity: 0.45;
    cursor: not-allowed;
    filter: grayscale(0.6);
}

.spc-card.disabled:hover {
    transform: none;
    box-shadow: none;
    border-color: var(--glass-border);
}

/* Inline warning shown under the connectivity grid when AVD is selected. */
.avd-warning {
    margin-top: 14px;
    padding: 10px 14px;
    border-radius: 10px;
    background: rgba(255, 184, 0, 0.10);
    border: 1px solid rgba(255, 184, 0, 0.45);
    color: var(--text-primary);
    font-size: 0.88rem;
    line-height: 1.45;
    display: flex;
    align-items: flex-start;
    gap: 10px;
}

.avd-warning.hidden {
    display: none;
}

.avd-warning-icon {
    font-size: 1.05rem;
    line-height: 1.2;
    flex-shrink: 0;
}

.spc-card-cloud {
    position: absolute;
    top: 14px;
    right: 14px;
    width: 22px;
    height: 22px;
    object-fit: contain;
}

.spc-card-title {
    font-weight: 700;
    font-size: 1.15rem;
    color: var(--text-primary);
    line-height: 1.25;
}

.spc-card-sub {
    display: block;
    font-weight: 500;
    font-size: 0.85rem;
    color: var(--accent-blue);
    margin-top: 2px;
}

.spc-card.selected .spc-card-sub {
    color: var(--accent-blue);
}

.spc-stack {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    margin-top: 6px;
    position: relative;
}

/* The vertical connector line between pills */
.spc-stack::before {
    content: '';
    position: absolute;
    top: 18px;
    bottom: 18px;
    left: 50%;
    width: 1px;
    background: var(--glass-border);
    z-index: 0;
}

.spc-pill {
    position: relative;
    z-index: 1;
    width: 80%;
    padding: 8px 10px;
    border-radius: 6px;
    background: var(--subtle-bg);
    border: 1px solid var(--glass-border);
    font-size: 0.82rem;
    font-weight: 500;
    color: var(--text-primary);
}

.spc-pill-control {
    background: linear-gradient(135deg, #2bc4a6 0%, #29a3d8 100%);
    border-color: transparent;
    color: #fff;
    font-weight: 700;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.spc-pill-main { font-size: 0.85rem; }
.spc-pill-sub { font-size: 0.7rem; opacity: 0.92; font-weight: 500; }

.spc-pill-empty {
    background: transparent;
    border: 1px dashed var(--text-secondary);
    color: var(--text-secondary);
    font-style: italic;
}

.spc-region {
    width: 92%;
    display: flex;
    flex-direction: column;
    gap: 4px;
    padding: 8px 14px;
    background: transparent;
    z-index: 2;
    position: relative;
    margin: 2px 0;
}

/* The region box is intentionally flat — no fill — so it blends with the
   card surface. The thin connector line passes through and visually acts
   as the divider between the control-plane area and the workload area. */
.spc-region::before {
    content: '';
    position: absolute;
    inset: 0;
    background: transparent;
    z-index: -1;
}

.spc-region-row {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    font-size: 0.78rem;
    color: var(--text-secondary);
    text-align: center;
    padding: 2px 0;
}

.spc-region-icon {
    width: 14px;
    height: 14px;
    flex-shrink: 0;
    color: var(--text-secondary);
}

.spc-region-divider {
    height: 1px;
    background: var(--glass-border);
    margin: 2px 0;
}

.spc-region-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--accent-blue);
    flex-shrink: 0;
}

.spc-region-dot-loc {
    background: var(--accent-purple);
}

.spc-card-desc {
    font-size: 0.82rem;
    color: var(--text-secondary);
    line-height: 1.45;
    margin-top: 4px;
    padding-top: 12px;
    border-top: 1px solid var(--glass-border);
}

/* Slide-28 multi-tenancy visuals */
.spc-coming-soon {
    position: absolute;
    top: -10px;
    right: 14px;
    padding: 3px 12px;
    font-size: 0.7rem;
    font-weight: 700;
    color: #fff;
    background: linear-gradient(135deg, #2bc4a6, #29a3d8);
    border-radius: 12px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    z-index: 3;
}

.tenancy-visual {
    display: flex;
    justify-content: center;
    align-items: flex-end;
    gap: 14px;
    padding: 14px 8px 10px;
    min-height: 150px;
}

/* Slide-29 strict-isolation visual: two tenant boxes side-by-side */
.tenancy-tenant-box {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
}

.tenancy-tenant-label {
    font-size: 0.7rem;
    font-weight: 600;
    color: var(--text-secondary);
}

.tenancy-cluster-box {
    display: flex;
    flex-direction: column;
    gap: 3px;
    padding: 8px;
    background: rgba(0, 120, 212, 0.08);
    border: 1px solid rgba(0, 120, 212, 0.35);
    border-radius: 8px;
    min-width: 70px;
}

.tenancy-server {
    width: 54px;
    height: 9px;
    background: linear-gradient(135deg, #29a3d8, #1561b0);
    border-radius: 2px;
}

/* Slide-30 logical-isolation visual: dept chips + single shared tenant */
.tenancy-logical {
    flex-direction: column;
    align-items: center;
    gap: 8px;
}

.tenancy-dept-chips {
    display: flex;
    gap: 6px;
    flex-wrap: wrap;
    justify-content: center;
}

.tenancy-dept-chip {
    font-size: 0.65rem;
    font-weight: 700;
    color: #fff;
    padding: 3px 8px;
    border-radius: 3px;
    text-transform: none;
    letter-spacing: 0;
}

.tenancy-dept-eng { background: #6d3fe0; }
.tenancy-dept-fin { background: #e0612a; }
.tenancy-dept-qa  { background: #2faa4a; }

.tenancy-shared-tenant {
    padding: 8px;
    background: rgba(0, 120, 212, 0.08);
    border: 1px solid rgba(0, 120, 212, 0.35);
    border-radius: 8px;
}

.tenancy-tile-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 4px;
}

.tenancy-tile {
    width: 32px;
    height: 14px;
    border-radius: 2px;
    color: #fff;
    font-size: 0.55rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
    line-height: 1;
}

.tenancy-t-vm-p  { background: #6d3fe0; }
.tenancy-t-vm-o  { background: #e0612a; }
.tenancy-t-vm-g  { background: #2faa4a; }
.tenancy-t-aks   { background: #1561b0; }

.footprint-heading {
    margin-top: 24px;
    margin-bottom: 0;
    font-size: 1rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.pick-card {
    background: linear-gradient(160deg, rgba(120, 80, 220, 0.10), rgba(0, 120, 212, 0.06));
    border: 1px solid var(--glass-border);
    border-radius: 10px;
    padding: 18px;
    cursor: pointer;
    transition: all 0.2s ease;
    color: var(--text-primary);
    text-align: left;
    font-family: inherit;
    width: 100%;
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.pick-card:hover {
    border-color: rgba(0, 120, 212, 0.5);
    transform: translateY(-2px);
    box-shadow: 0 8px 22px rgba(0, 0, 0, 0.4);
}

.pick-card:focus-visible {
    outline: 2px solid var(--accent-blue);
    outline-offset: 2px;
}

.pick-card.selected {
    border-color: var(--accent-blue);
    background: rgba(0, 120, 212, 0.12);
    box-shadow: 0 0 0 1px var(--accent-blue) inset;
}

.pick-card .pick-icon {
    font-size: 1.6rem;
    line-height: 1;
}

.pick-card .pick-icon-img {
    width: 40px;
    height: 40px;
    object-fit: contain;
    display: block;
}

.pick-card .pick-icon-stack {
    position: relative;
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.pick-card .pick-icon-stack .pick-icon-img {
    width: 48px;
    height: 48px;
}

.pick-card .pick-size-badge {
    position: absolute;
    right: -6px;
    bottom: -4px;
    min-width: 26px;
    height: 22px;
    padding: 0 6px;
    border-radius: 11px;
    background: var(--accent-blue);
    color: #fff;
    font-size: 0.72rem;
    font-weight: 700;
    line-height: 22px;
    text-align: center;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.35);
    border: 2px solid var(--card-bg, #1a1f2b);
}

.footprint-multi-hint {
    font-size: 0.8rem;
    font-weight: 400;
    color: var(--text-secondary);
    margin-left: 8px;
}

.template-card h4 .template-card-icon,
.template-card .template-card-icon {
    width: 22px;
    height: 22px;
    object-fit: contain;
    vertical-align: middle;
    margin-right: 8px;
}

.pick-card .pick-title {
    font-weight: 600;
    font-size: 1rem;
    color: var(--text-primary);
}

.pick-card .pick-desc {
    font-size: 0.85rem;
    color: var(--text-secondary);
    line-height: 1.45;
}

.pick-card .pick-meta {
    margin-top: 6px;
    font-size: 0.75rem;
    color: var(--accent-purple);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.pick-card.recommended::after {
    content: 'Recommended';
    align-self: flex-start;
    margin-top: 4px;
    padding: 2px 8px;
    font-size: 0.7rem;
    background: rgba(16, 185, 129, 0.15);
    color: var(--success);
    border-radius: 10px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* Selection summary */
.selection-summary {
    background: var(--subtle-bg);
    border: 1px solid var(--glass-border);
    border-radius: 8px;
    padding: 12px 16px;
    margin-bottom: 16px;
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.selection-summary strong {
    color: var(--text-primary);
}

/* Preview */
.preview-card {
    background: var(--card-bg);
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    overflow: hidden;
}

.preview-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 16px;
    padding: 16px 20px;
    border-bottom: 1px solid var(--glass-border);
    flex-wrap: wrap;
}

.preview-header h3 {
    margin: 0;
    font-size: 1.1rem;
}

.preview-actions {
    display: flex;
    gap: 8px;
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent-blue), var(--accent-purple));
    color: #fff;
    border: none;
    padding: 10px 18px;
    border-radius: 8px;
    font-weight: 600;
    font-size: 0.9rem;
    cursor: pointer;
    transition: all 0.2s ease;
    font-family: inherit;
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.btn-primary:hover:not(:disabled) {
    transform: translateY(-1px);
    box-shadow: 0 6px 18px rgba(0, 120, 212, 0.35);
}

.btn-primary:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

.preview-canvas-wrapper {
    position: relative;
    background:
        radial-gradient(circle at 25% 30%, rgba(0, 120, 212, 0.08) 0%, transparent 60%),
        radial-gradient(circle at 75% 70%, rgba(139, 92, 246, 0.08) 0%, transparent 60%),
        #0a0a0f;
    padding: 24px;
    overflow: auto;
}

.preview-zoom-controls {
    position: sticky;
    top: 0;
    left: 0;
    z-index: 5;
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 6px 8px;
    margin-bottom: 12px;
    background: rgba(20, 24, 35, 0.85);
    border: 1px solid var(--glass-border);
    border-radius: 8px;
    backdrop-filter: blur(6px);
}

.preview-zoom-btn {
    width: 32px;
    height: 28px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    color: var(--text-primary);
    border: 1px solid var(--glass-border);
    border-radius: 4px;
    font-size: 1rem;
    line-height: 1;
    cursor: pointer;
    padding: 0;
}

.preview-zoom-btn:hover {
    background: rgba(0, 120, 212, 0.18);
    border-color: var(--accent-blue);
}

.preview-zoom-btn:focus-visible {
    outline: 2px solid var(--accent-blue);
    outline-offset: 1px;
}

.preview-zoom-level {
    min-width: 48px;
    text-align: center;
    font-size: 0.8rem;
    color: var(--text-secondary);
    font-variant-numeric: tabular-nums;
}

.preview-canvas {
    width: 100%;
    min-height: 480px;
    display: flex;
    justify-content: flex-start;
    align-items: flex-start;
    overflow-x: auto;
}

.preview-canvas svg {
    display: block;
    height: auto;
    max-width: none;
    /* width is set inline via the renderer so the diagram renders at natural pixel size
       and the canvas scrolls horizontally when there are many cards. */
}

.preview-notes {
    padding: 16px 20px;
    font-size: 0.9rem;
    color: var(--text-secondary);
    border-top: 1px solid var(--glass-border);
    background: var(--subtle-bg);
}

.preview-notes ul {
    margin: 8px 0 0 18px;
}

.preview-notes li {
    margin-bottom: 4px;
}

.preview-notes p {
    margin: 6px 0 12px;
    line-height: 1.55;
}

.preview-notes strong {
    color: var(--text-primary);
}

.preview-notes > strong {
    display: block;
    font-size: 1rem;
    margin-bottom: 4px;
}

.preview-notes > strong + p {
    margin-top: 4px;
}

.preview-notes > strong:not(:first-child) {
    margin-top: 14px;
}

.preview-empty {
    color: var(--text-secondary);
    font-style: italic;
    text-align: center;
    padding: 60px 20px;
}

/* Templates summary grid */
.templates-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 14px;
    margin-top: 16px;
}

.template-card {
    background: var(--subtle-bg);
    border: 1px solid var(--glass-border);
    border-radius: 10px;
    padding: 16px;
}

.template-card h4 {
    margin: 0 0 6px 0;
    color: var(--text-primary);
    font-size: 1rem;
}

.template-card p {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin: 0 0 10px 0;
    line-height: 1.5;
}

.template-card .tags {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}

.template-card .tags span {
    font-size: 0.7rem;
    padding: 2px 8px;
    border-radius: 10px;
    background: rgba(139, 92, 246, 0.15);
    color: var(--accent-purple);
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

/* In-iframe small tweaks */
body.in-iframe {
    padding-top: 0;
}

body.in-iframe .sidebar {
    top: 0;
    height: 100vh;
}

@media (max-width: 768px) {
    .preview-header {
        flex-direction: column;
        align-items: stretch;
    }
}

/* ============================================================
   Diagram theme toggle (dark vs light)
   ============================================================ */

#preview-theme-toggle {
    background: transparent;
    color: var(--text-primary);
    border: 1px solid var(--glass-border);
    border-radius: 6px;
    padding: 8px 14px;
    font-size: 0.9rem;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    transition: background 0.15s ease, border-color 0.15s ease;
}
#preview-theme-toggle:hover {
    background: rgba(0, 120, 212, 0.12);
    border-color: var(--accent-blue);
}

/* Share Architecture as URL — mirrors the theme-toggle styling */
#share-refarch-url {
    background: transparent;
    color: var(--text-primary);
    border: 1px solid var(--glass-border);
    border-radius: 6px;
    padding: 8px 14px;
    font-size: 0.9rem;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    transition: background 0.15s ease, border-color 0.15s ease;
    font-family: inherit;
}
#share-refarch-url:hover:not(:disabled) {
    background: rgba(139, 92, 246, 0.12);
    border-color: var(--accent-purple);
}
#share-refarch-url:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* When the diagram is in light mode, paint the canvas white and override the
   CSS variables that the SVG renderer reads so text contrasts on white. */
.preview-canvas.diagram-light {
    background: #ffffff;
    border-radius: 8px;
    /* The SVG references these via var(--text-primary)/var(--text-secondary) */
    --text-primary: #1a2733;
    --text-secondary: #5c6b7a;
}