/* ============================================================
   Cloudflare One Architecture Builder — CSS
   Aesthetic: Technical blueprint meets warm Cloudflare orange.
   Typography: DM Sans (display) + JetBrains Mono (tags/code).
   ============================================================ */

:root {
    /* Cloudflare palette */
    --cf-orange: #F38020;
    --cf-orange-light: #FBCFA0;
    --cf-orange-dark: #C95E00;

    /* Canvas surface — dark (default) */
    --bg: #0C0F14;
    --bg-surface: #13161D;
    --bg-elevated: #1A1E27;
    --bg-card: #1E222D;

    /* Text */
    --text-primary: #E8ECF4;
    --text-secondary: #8B92A5;
    --text-muted: #A0A8BA;

    /* Borders */
    --border: #252A36;
    --border-hover: #3A4050;

    /* Semantic colors */
    --danger: #ef4444;
    --danger-bg: rgba(239, 68, 68, 0.1);
    --overlay-bg: rgba(12, 15, 20, 0.85);
    --toast-shadow: rgba(0, 0, 0, 0.4);
    --card-icon-orange-bg: rgba(243, 128, 32, 0.08);
    --card-icon-green-bg: rgba(34, 197, 94, 0.08);
    --card-icon-cyan-bg: rgba(6, 182, 212, 0.08);
    --card-icon-blue-bg: rgba(59, 130, 246, 0.08);
    --cf-glow-bg: rgba(243, 128, 32, 0.12);
    --cf-network-gradient: rgba(243, 128, 32, 0.08);
    --cf-tag-bg: rgba(243, 128, 32, 0.1);
    --cf-tag-border: rgba(243, 128, 32, 0.25);
    --cf-selected-shadow: rgba(243, 128, 32, 0.2);
    --cf-selected-glow: rgba(243, 128, 32, 0.1);
    --drop-zone-hover-bg: rgba(243, 128, 32, 0.04);

    /* Connectors — chosen for max contrast on dark bg */
    --tunnel: #7C3AED;
    --warp: #3B82F6;
    --cloudflare-mesh: #E844A0;
    --ipsec: #F97316;
    --gre: #FACC15;
    --cni: #818CF8;
    --multi-cloud: #22C55E;
    --dns: #22D3EE;
    --proxy: #2DD4BF;
    --rbi: #FB923C;
    --appliance: #F43F5E;
    --access-saas: #A78BFA;
    --casb-api: #C084FC;
    --mtls: #64748B;
    --email-security-api: #E040FB;
    --email-security-mx: #CE93D8;
    --mcp-portal: #0EA5E9;
    --workers-vpc: #F59E0B;
    --public-https: #38BDF8;
    --private-origin: #14B8A6;

    /* Sizing */
    --sidebar-w: 280px;
    --detail-w: 300px;
    --topbar-h: 52px;
    --radius: 10px;
    --radius-sm: 6px;

    color-scheme: dark;
}

/* ---- LIGHT THEME ---- */
[data-theme="light"] {
    --bg: #F4F5F7;
    --bg-surface: #FFFFFF;
    --bg-elevated: #F9FAFB;
    --bg-card: #FFFFFF;

    --text-primary: #1A1D26;
    --text-secondary: #555D73;
    --text-muted: #6B7280;

    --border: #D8DCE5;
    --border-hover: #BCC1CE;

    --danger: #DC2626;
    --danger-bg: rgba(220, 38, 38, 0.08);
    --overlay-bg: rgba(244, 245, 247, 0.9);
    --toast-shadow: rgba(0, 0, 0, 0.12);
    --card-icon-orange-bg: rgba(243, 128, 32, 0.1);
    --card-icon-green-bg: rgba(34, 197, 94, 0.1);
    --card-icon-cyan-bg: rgba(6, 182, 212, 0.1);
    --card-icon-blue-bg: rgba(59, 130, 246, 0.1);
    --cf-glow-bg: rgba(243, 128, 32, 0.08);
    --cf-network-gradient: rgba(243, 128, 32, 0.06);
    --cf-tag-bg: rgba(243, 128, 32, 0.08);
    --cf-tag-border: rgba(243, 128, 32, 0.2);
    --cf-selected-shadow: rgba(243, 128, 32, 0.15);
    --cf-selected-glow: rgba(243, 128, 32, 0.08);
    --drop-zone-hover-bg: rgba(243, 128, 32, 0.06);

    /* Connectors — slightly deeper saturation for light bg readability */
    --tunnel: #6D28D9;
    --warp: #2563EB;
    --cloudflare-mesh: #DB2777;
    --ipsec: #EA580C;
    --gre: #CA8A04;
    --cni: #6366F1;
    --multi-cloud: #16A34A;
    --dns: #0891B2;
    --proxy: #0D9488;
    --rbi: #EA580C;
    --appliance: #E11D48;
    --access-saas: #7C3AED;
    --casb-api: #A855F7;
    --mtls: #475569;
    --email-security-api: #D500F9;
    --email-security-mx: #AB47BC;
    --mcp-portal: #0284C7;
    --workers-vpc: #D97706;
    --public-https: #0369A1;
    --private-origin: #0F766E;

    color-scheme: light;
}

/* Respect OS preference when no explicit theme is set */
@media (prefers-color-scheme: light) {
    :root:not([data-theme]) {
        --bg: #F4F5F7;
        --bg-surface: #FFFFFF;
        --bg-elevated: #F9FAFB;
        --bg-card: #FFFFFF;

        --text-primary: #1A1D26;
        --text-secondary: #555D73;
        --text-muted: #6B7280;

        --border: #D8DCE5;
        --border-hover: #BCC1CE;

        --danger: #DC2626;
        --danger-bg: rgba(220, 38, 38, 0.08);
        --overlay-bg: rgba(244, 245, 247, 0.9);
        --toast-shadow: rgba(0, 0, 0, 0.12);
        --card-icon-orange-bg: rgba(243, 128, 32, 0.1);
        --card-icon-green-bg: rgba(34, 197, 94, 0.1);
        --card-icon-cyan-bg: rgba(6, 182, 212, 0.1);
        --card-icon-blue-bg: rgba(59, 130, 246, 0.1);
        --cf-glow-bg: rgba(243, 128, 32, 0.08);
        --cf-network-gradient: rgba(243, 128, 32, 0.06);
        --cf-tag-bg: rgba(243, 128, 32, 0.08);
        --cf-tag-border: rgba(243, 128, 32, 0.2);
        --cf-selected-shadow: rgba(243, 128, 32, 0.15);
        --cf-selected-glow: rgba(243, 128, 32, 0.08);
        --drop-zone-hover-bg: rgba(243, 128, 32, 0.06);

        --tunnel: #6D28D9;
        --warp: #2563EB;
        --cloudflare-mesh: #DB2777;
        --ipsec: #EA580C;
        --gre: #CA8A04;
        --cni: #6366F1;
        --multi-cloud: #16A34A;
        --dns: #0891B2;
        --proxy: #0D9488;
        --rbi: #EA580C;
        --appliance: #E11D48;
        --access-saas: #7C3AED;
        --casb-api: #A855F7;
        --mtls: #475569;
        --email-security-api: #D500F9;
        --email-security-mx: #AB47BC;
        --mcp-portal: #0284C7;
        --workers-vpc: #D97706;
        --public-https: #0369A1;
        --private-origin: #0F766E;

        color-scheme: light;
    }
}

*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html,
body {
    height: 100%;
    overflow: hidden;
    background: var(--bg);
    color: var(--text-primary);
    font-family: 'DM Sans', system-ui, sans-serif;
    font-size: 13px;
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
}

#app {
    display: flex;
    flex-direction: column;
    height: 100vh;
}

/* ---- TOPBAR ---- */
.topbar {
    height: var(--topbar-h);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 16px;
    background: var(--bg-surface);
    border-bottom: 1px solid var(--border);
    flex-shrink: 0;
    z-index: 100;
}

.topbar-left {
    display: flex;
    align-items: center;
    gap: 10px;
}

.cf-logo {
    flex-shrink: 0;
}

.topbar-left h1 {
    font-size: 15px;
    font-weight: 600;
    letter-spacing: -0.02em;
    white-space: nowrap;
}

.topbar-left .accent {
    color: var(--cf-orange);
}

.topbar-right {
    display: flex;
    align-items: center;
    gap: 12px;
}

.progress-pill {
    display: flex;
    align-items: center;
    gap: 8px;
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    border-radius: 20px;
    padding: 4px 12px;
    font-size: 11px;
}

.progress-label {
    color: var(--text-muted);
}

.progress-bar {
    width: 80px;
    height: 4px;
    background: var(--bg);
    border-radius: 2px;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    width: 0%;
    background: var(--cf-orange);
    border-radius: 2px;
    transition: width 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.progress-pct {
    color: var(--cf-orange);
    font-family: 'JetBrains Mono', monospace;
    font-weight: 500;
    min-width: 28px;
    text-align: right;
}

/* ---- BUTTONS ---- */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 14px;
    border-radius: var(--radius-sm);
    border: none;
    cursor: pointer;
    font-family: inherit;
    font-size: 12px;
    font-weight: 500;
    transition: all 0.15s;
}

.btn-primary {
    background: var(--cf-orange);
    color: #0C0F14;
}

.btn-primary:hover {
    background: var(--cf-orange-dark);
}

.btn-sm {
    padding: 4px 10px;
    font-size: 11px;
}

.btn-ghost {
    background: transparent;
    color: var(--text-secondary);
    border: 1px solid var(--border);
}

.btn-ghost:hover {
    border-color: var(--border-hover);
    color: var(--text-primary);
}

.btn-icon {
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    padding: 4px;
    border-radius: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.15s;
}

.btn-icon:hover {
    color: var(--danger);
    background: var(--danger-bg);
}

/* ---- MAIN LAYOUT ---- */
.main-layout {
    display: flex;
    flex: 1;
    overflow: hidden;
    height: calc(100vh - var(--topbar-h));
}

/* ---- SIDEBAR ---- */
.sidebar {
    width: var(--sidebar-w);
    flex-shrink: 0;
    background: var(--bg-surface);
    border-right: 1px solid var(--border);
    overflow-y: auto;
    padding: 12px;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.sidebar::-webkit-scrollbar {
    width: 4px;
}

.sidebar::-webkit-scrollbar-thumb {
    background: var(--border);
    border-radius: 2px;
}

.sidebar-section {
    margin-bottom: 8px;
}

.sidebar-heading {
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--cf-orange);
    margin-bottom: 4px;
}

.sidebar-hint {
    font-size: 11px;
    color: var(--text-muted);
    margin-bottom: 8px;
}

.component-group {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

/* Component cards (draggable) */
.component-card {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 10px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    cursor: grab;
    transition: all 0.15s;
    text-align: left;
    width: 100%;
    font-family: inherit;
    color: var(--text-primary);
}

.component-card:hover {
    border-color: var(--cf-orange);
    background: var(--bg-elevated);
    transform: translateX(2px);
}

.component-card:active {
    cursor: grabbing;
}

.component-card.dragging {
    opacity: 0.5;
    transform: scale(0.95);
}

.card-icon {
    width: 34px;
    height: 34px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--card-icon-orange-bg);
    border-radius: 6px;
    color: var(--cf-orange);
    flex-shrink: 0;
}

.card-icon.cloud-icon {
    color: var(--multi-cloud);
    background: var(--card-icon-green-bg);
}

.card-icon.saas-icon {
    color: var(--dns);
    background: var(--card-icon-cyan-bg);
}

.card-icon.user-icon {
    color: var(--warp);
    background: var(--card-icon-blue-bg);
}

.card-text {
    display: flex;
    flex-direction: column;
}

.card-title {
    font-size: 12px;
    font-weight: 600;
    line-height: 1.3;
}

.card-desc {
    font-size: 10px;
    color: var(--text-muted);
    line-height: 1.3;
}

/* Connector buttons */
.connectors-group {
    gap: 3px;
}

.connector-btn {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 6px 8px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-family: inherit;
    font-size: 11px;
    color: var(--text-primary);
    text-align: left;
    width: 100%;
    transition: all 0.15s;
}

.connector-btn:disabled {
    opacity: 0.35;
    cursor: not-allowed;
}

.connector-btn:not(:disabled):hover {
    border-color: var(--border-hover);
    background: var(--bg-elevated);
}

.connector-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--dot-color);
    flex-shrink: 0;
}

.connector-tag {
    margin-left: auto;
    font-size: 9px;
    font-family: 'JetBrains Mono', monospace;
    color: var(--text-muted);
    padding: 1px 5px;
    border: 1px solid var(--border);
    border-radius: 3px;
    white-space: nowrap;
}


/* ---- CANVAS ---- */
.canvas-area {
    flex: 1;
    position: relative;
    overflow: hidden;
    background: var(--bg);
    /* Blueprint grid */
    background-image:
        radial-gradient(circle at 1px 1px, var(--border) 0.5px, transparent 0.5px);
    background-size: 24px 24px;
}

.canvas-container {
    position: absolute;
    inset: 0;
}

/* Cloudflare Network — center */
.cf-network {
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    z-index: 10;
}

.cf-network-inner {
    position: relative;
    width: 180px;
    height: 180px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 2px;
    padding-bottom: 4px;
    border-radius: 50%;
    border: 2px solid var(--cf-orange);
    background: radial-gradient(circle, var(--cf-network-gradient) 0%, transparent 70%);
}

.cf-glow {
    position: absolute;
    inset: -30px;
    border-radius: 50%;
    background: radial-gradient(circle, var(--cf-glow-bg) 0%, transparent 70%);
    animation: pulse-glow 3s ease-in-out infinite;
    pointer-events: none;
}

@keyframes pulse-glow {

    0%,
    100% {
        opacity: 0.6;
        transform: scale(1);
    }

    50% {
        opacity: 1;
        transform: scale(1.08);
    }
}

.cf-shield {
    flex-shrink: 0;
    transform: translateY(-2px);
}

.cf-label {
    font-size: 10px;
    font-weight: 600;
    text-align: center;
    line-height: 1.15;
    color: var(--text-primary);
}

.cf-services {
    display: flex;
    flex-wrap: wrap;
    gap: 2px;
    justify-content: center;
    max-width: 150px;
}

.cf-service-tag {
    font-size: 8px;
    font-family: 'JetBrains Mono', monospace;
    font-weight: 500;
    color: var(--cf-orange);
    background: var(--cf-tag-bg);
    border: 1px solid var(--cf-tag-border);
    padding: 1px 4px;
    border-radius: 3px;
    letter-spacing: 0.03em;
}

/* Connection lines SVG */
.connections-layer {
    position: absolute;
    inset: 0;
    z-index: 5;
    pointer-events: none;
}

.connections-layer line,
.connections-layer path {
    stroke-linecap: round;
}

/* Drop zones */
.drop-zone {
    position: absolute;
    top: 10%;
    bottom: 10%;
    width: 35%;
    border: 2px dashed var(--border);
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s;
    z-index: 2;
}

.drop-zone-left {
    left: 2%;
}

.drop-zone-right {
    right: 2%;
}

.drop-zone-label {
    font-size: 12px;
    color: var(--text-muted);
    pointer-events: none;
    opacity: 0.6;
}

.drop-zone.drag-over {
    border-color: var(--cf-orange);
    background: var(--drop-zone-hover-bg);
}

.drop-zone.has-items .drop-zone-label {
    display: none;
}

/* Placed elements */
.placed-elements {
    position: absolute;
    inset: 0;
    z-index: 8;
    pointer-events: none;
}

.placed-element {
    position: absolute;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
    pointer-events: all;
    cursor: pointer;
    transition: transform 0.15s;
    user-select: none;
}

.placed-element:hover {
    transform: scale(1.05);
}

.placed-element.selected .element-body {
    border-color: var(--cf-orange);
    box-shadow: 0 0 0 3px var(--cf-selected-shadow), 0 0 20px var(--cf-selected-glow);
}

.element-body {
    width: 64px;
    height: 64px;
    border-radius: 14px;
    border: 2px solid var(--border);
    background: var(--bg-card);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-primary);
    transition: all 0.2s;
    position: relative;
}

.element-body svg {
    width: 28px;
    height: 28px;
}

.element-label {
    font-size: 10px;
    font-weight: 600;
    color: var(--text-secondary);
    text-align: center;
    max-width: 90px;
    line-height: 1.2;
}

.element-connectors {
    position: absolute;
    top: -6px;
    right: -6px;
    display: flex;
    gap: 2px;
}

.element-connector-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    border: 2px solid var(--bg-card);
}

/* Animated connection lines */
@keyframes dash-flow {
    to {
        stroke-dashoffset: -20;
    }
}

.connection-line {
    stroke-width: 2;
    stroke-dasharray: 6 4;
    animation: dash-flow 1s linear infinite;
}

.connection-line-bg {
    stroke-width: 6;
    opacity: 0.08;
}

/* Bidirectional uses solid + arrows */
.connection-line-bidir {
    stroke-width: 2.5;
    stroke-dasharray: none;
    animation: none;
}

/* Connection label */
.connection-label-group text {
    font-family: 'JetBrains Mono', monospace;
    font-size: 8px;
    fill: var(--text-muted);
}

.connection-label-group rect {
    fill: var(--bg);
    rx: 3;
}

/* ---- DETAIL PANEL ---- */
.detail-panel {
    width: var(--detail-w);
    flex-shrink: 0;
    background: var(--bg-surface);
    border-left: 1px solid var(--border);
    overflow-y: auto;
    padding: 16px;
}

.detail-empty {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    gap: 12px;
    height: 100%;
    color: var(--text-muted);
    font-size: 12px;
    padding: 24px;
}

.detail-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 8px;
}

.detail-header h3 {
    font-size: 15px;
    font-weight: 600;
}

.detail-desc {
    font-size: 12px;
    color: var(--text-secondary);
    margin-bottom: 16px;
    line-height: 1.6;
}

.detail-connections {
    display: flex;
    flex-direction: column;
    gap: 6px;
    margin-bottom: 16px;
}

.detail-conn-item {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 7px 8px;
    background: var(--bg-card);
    border-radius: var(--radius-sm);
    border: 1px solid var(--border);
    transition: all 0.15s;
}

.detail-conn-item .conn-color {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    flex-shrink: 0;
    transition: opacity 0.15s;
}

.detail-conn-item .conn-text {
    display: flex;
    flex-direction: column;
    gap: 1px;
    min-width: 0;
}

.detail-conn-item .conn-name {
    font-size: 11.5px;
    font-weight: 500;
    line-height: 1.2;
}

.detail-conn-item .conn-protocol {
    font-size: 9.5px;
    font-family: 'JetBrains Mono', monospace;
    color: var(--text-muted);
    line-height: 1.2;
}

.detail-conn-item .conn-remove {
    margin-left: auto;
    background: none;
    border: 1px solid var(--border);
    border-radius: 4px;
    color: var(--text-muted);
    cursor: pointer;
    font-size: 16px;
    line-height: 1;
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    transition: all 0.15s;
}

.detail-conn-item .conn-remove:hover {
    color: #fff;
    background: var(--danger);
    border-color: var(--danger);
}

/* Active connection — full color */
.detail-conn-item.conn-active {
    border-color: var(--border-hover);
}

/* Inactive connection — greyed out, clickable */
.detail-conn-item.conn-inactive {
    opacity: 0.4;
    cursor: pointer;
}

.detail-conn-item.conn-inactive:hover {
    opacity: 0.85;
    border-color: var(--border-hover);
    background: var(--bg-elevated);
}

.conn-add-hint {
    margin-left: auto;
    font-size: 9px;
    color: var(--text-muted);
    white-space: nowrap;
    opacity: 0;
    transition: opacity 0.15s;
    flex-shrink: 0;
}

.detail-conn-item.conn-inactive:hover .conn-add-hint {
    opacity: 1;
}

.detail-info {
    font-size: 11px;
    color: var(--text-secondary);
    line-height: 1.6;
}

.detail-info h4 {
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-muted);
    margin-bottom: 6px;
    margin-top: 12px;
}

.detail-info h4:first-child {
    margin-top: 0;
}

.detail-info a {
    color: var(--cf-orange);
    text-decoration: none;
}

.detail-info a:hover {
    text-decoration: underline;
}

.detail-info ul {
    list-style: none;
    padding: 0;
}

.detail-info ul li {
    padding: 2px 0;
    padding-left: 12px;
    position: relative;
}

.detail-info ul li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 9px;
    width: 4px;
    height: 4px;
    border-radius: 50%;
    background: var(--cf-orange);
    opacity: 0.5;
}

/* ---- ONBOARDING OVERLAY ---- */
.onboarding-overlay {
    position: absolute;
    inset: 0;
    background: var(--overlay-bg);
    backdrop-filter: blur(8px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 50;
    animation: fade-in 0.3s ease;
}

.onboarding-overlay.hidden {
    display: none;
}

@keyframes fade-in {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}

.onboarding-card {
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 36px 40px;
    max-width: 460px;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 16px;
}

.onboarding-card h2 {
    font-size: 20px;
    font-weight: 700;
    letter-spacing: -0.02em;
}

.onboarding-card p {
    font-size: 13px;
    color: var(--text-secondary);
    line-height: 1.6;
}

.onboarding-steps {
    text-align: left;
    display: flex;
    flex-direction: column;
    gap: 10px;
    width: 100%;
}

.ob-step {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 12px;
    color: var(--text-secondary);
}

.ob-num {
    width: 22px;
    height: 22px;
    border-radius: 50%;
    background: var(--cf-orange);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 11px;
    font-weight: 700;
    flex-shrink: 0;
}

/* ---- TOASTS ---- */
.toast-container {
    position: fixed;
    bottom: 20px;
    right: 20px;
    display: flex;
    flex-direction: column;
    gap: 8px;
    z-index: 200;
    pointer-events: none;
}

.toast {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 16px;
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    font-size: 12px;
    color: var(--text-primary);
    box-shadow: 0 8px 32px var(--toast-shadow);
    animation: toast-in 0.4s cubic-bezier(0.34, 1.56, 0.64, 1), toast-out 0.3s 3s ease forwards;
    pointer-events: all;
}

.toast-icon {
    font-size: 18px;
    flex-shrink: 0;
}

@keyframes toast-in {
    from {
        transform: translateX(120%);
        opacity: 0;
    }

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

@keyframes toast-out {
    from {
        transform: translateX(0);
        opacity: 1;
    }

    to {
        transform: translateX(120%);
        opacity: 0;
    }
}

/* ---- TEMPLATES DROPDOWN ---- */
.templates-dropdown {
    border: none;
}

.templates-dropdown summary {
    list-style: none;
    cursor: pointer;
    user-select: none;
}

.templates-dropdown summary::-webkit-details-marker {
    display: none;
}

.templates-toggle {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 10px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    font-size: 12px;
    font-weight: 600;
    color: var(--text-primary);
    transition: all 0.15s;
}

.templates-toggle:hover {
    border-color: var(--cf-orange);
    background: var(--bg-elevated);
}

.templates-icon {
    color: var(--cf-orange);
    flex-shrink: 0;
}

.toggle-arrow {
    margin-left: auto;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 20px;
    height: 20px;
    border-radius: 4px;
    background: var(--bg);
    border: 1px solid var(--border);
    font-size: 10px;
    line-height: 1;
    transition: all 0.2s;
    color: var(--text-secondary);
    flex-shrink: 0;
}

.templates-dropdown:hover .toggle-arrow {
    border-color: var(--cf-orange);
    color: var(--cf-orange);
}

.templates-dropdown[open] .templates-toggle {
    border-color: var(--cf-orange);
}

.templates-dropdown[open] .toggle-arrow {
    transform: rotate(180deg);
    background: var(--cf-orange);
    border-color: var(--cf-orange);
    color: #fff;
}

.templates-dropdown .templates-group {
    margin-top: 6px;
}

.templates-group {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.template-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 7px 10px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-family: inherit;
    font-size: 11px;
    color: var(--text-primary);
    text-align: left;
    width: 100%;
    transition: all 0.15s;
}

.template-btn:hover {
    border-color: var(--cf-orange);
    background: var(--bg-elevated);
}

.template-emoji {
    font-size: 15px;
    width: 22px;
    text-align: center;
    flex-shrink: 0;
}

.template-text {
    display: flex;
    flex-direction: column;
    gap: 1px;
    min-width: 0;
}

.template-name {
    font-weight: 600;
    font-size: 11px;
    line-height: 1.2;
}

.template-sub {
    font-size: 9.5px;
    color: var(--text-muted);
    line-height: 1.2;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* ---- ELEMENT REMOVE BUTTON ---- */
.element-remove-btn {
    position: absolute;
    top: -8px;
    left: -8px;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--bg-card);
    border: 1.5px solid var(--border);
    color: var(--text-muted);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: all 0.15s;
    z-index: 2;
    padding: 0;
    font-family: inherit;
}

.placed-element:hover .element-remove-btn,
.placed-element.selected .element-remove-btn {
    opacity: 1;
}

.element-remove-btn:hover {
    background: var(--danger);
    border-color: var(--danger);
    color: #fff;
}

/* ---- THEME TOGGLE ---- */
.theme-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    padding: 0;
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    border-radius: 8px;
    cursor: pointer;
    color: var(--text-secondary);
    transition: all 0.2s ease;
    flex-shrink: 0;
    position: relative;
    overflow: hidden;
}

.theme-toggle:hover {
    border-color: var(--cf-orange);
    color: var(--cf-orange);
    background: var(--bg-card);
}

.theme-toggle:active {
    transform: scale(0.92);
}

.theme-toggle svg {
    width: 16px;
    height: 16px;
    transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1), opacity 0.2s ease;
}

.theme-toggle .icon-sun,
.theme-toggle .icon-moon {
    position: absolute;
}

/* Dark theme: show moon, hide sun */
.theme-toggle .icon-sun {
    opacity: 0;
    transform: rotate(-90deg) scale(0.5);
}

.theme-toggle .icon-moon {
    opacity: 1;
    transform: rotate(0deg) scale(1);
}

/* Light theme: show sun, hide moon */
[data-theme="light"] .theme-toggle .icon-sun {
    opacity: 1;
    transform: rotate(0deg) scale(1);
}

[data-theme="light"] .theme-toggle .icon-moon {
    opacity: 0;
    transform: rotate(90deg) scale(0.5);
}

/* OS-preference light (no explicit data-theme) */
@media (prefers-color-scheme: light) {
    :root:not([data-theme]) .theme-toggle .icon-sun {
        opacity: 1;
        transform: rotate(0deg) scale(1);
    }

    :root:not([data-theme]) .theme-toggle .icon-moon {
        opacity: 0;
        transform: rotate(90deg) scale(0.5);
    }
}

/* ---- EXPORT DROPDOWN ---- */
.export-dropdown {
    position: relative;
}

.export-dropdown-toggle {
    display: inline-flex;
    align-items: center;
    gap: 4px;
}

.export-arrow {
    font-size: 9px;
    line-height: 1;
    transition: transform 0.2s;
    color: var(--text-muted);
}

.export-dropdown.open .export-arrow {
    transform: rotate(180deg);
}

.export-dropdown-menu {
    display: none;
    position: absolute;
    top: calc(100% + 6px);
    right: 0;
    min-width: 180px;
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.25);
    z-index: 200;
    padding: 4px;
    flex-direction: column;
    gap: 2px;
}

.export-dropdown.open .export-dropdown-menu {
    display: flex;
}

.export-option {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 10px;
    background: none;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-family: inherit;
    font-size: 12px;
    font-weight: 500;
    color: var(--text-primary);
    text-align: left;
    width: 100%;
    transition: all 0.12s;
}

.export-option:hover {
    background: var(--bg-card);
    color: var(--cf-orange);
}

.export-option svg {
    flex-shrink: 0;
    color: var(--text-muted);
}

.export-option:hover svg {
    color: var(--cf-orange);
}

.export-hint {
    margin-left: auto;
    font-size: 9px;
    font-family: 'JetBrains Mono', monospace;
    color: var(--text-muted);
    white-space: nowrap;
}

/* ---- DISCLAIMER ---- */
.sidebar-disclaimer {
    margin-top: auto;
    padding: 10px;
    font-size: 9.5px;
    color: var(--text-muted);
    line-height: 1.5;
    border-top: 1px solid var(--border);
}

.sidebar-disclaimer a {
    color: var(--cf-orange);
    text-decoration: none;
}

.sidebar-disclaimer a:hover {
    text-decoration: underline;
}

/* ---- MOBILE BLOCK ---- */
.mobile-block {
    display: none;
}

@media (max-width: 960px) {
    .mobile-block {
        display: flex;
        position: fixed;
        inset: 0;
        z-index: 9999;
        background: var(--bg);
        align-items: center;
        justify-content: center;
        padding: 24px;
    }

    #app {
        display: none !important;
    }
}

.mobile-block-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 16px;
    max-width: 380px;
    padding: 40px 32px;
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    border-radius: 16px;
}

.mobile-block-card h2 {
    font-size: 18px;
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: -0.02em;
}

.mobile-block-card p {
    font-size: 13px;
    color: var(--text-secondary);
    line-height: 1.6;
}

.mobile-block-link {
    display: inline-flex;
    padding: 8px 18px;
    background: var(--cf-orange);
    color: #fff;
    border-radius: var(--radius-sm);
    font-size: 12px;
    font-weight: 600;
    text-decoration: none;
    transition: background 0.15s;
}

.mobile-block-link:hover {
    background: var(--cf-orange-dark);
}

/* ---- RESPONSIVE ---- */
@media (max-width: 1100px) {
    .detail-panel {
        display: none;
    }
}

@media (max-width: 768px) {
    .sidebar {
        width: 220px;
    }
}