:root {
    /* Modern Dark UI + Bento + Glassmorphism + Aurora/Glow */

    /* Background / base */
    --bg-color: #06070a;
    --bg-elev-0: rgba(255, 255, 255, 0.02);

    /* Glass surfaces */
    --glass-bg: rgba(18, 20, 28, 0.55);
    --glass-bg-2: rgba(18, 20, 28, 0.42);
    --glass-border: rgba(255, 255, 255, 0.10);
    --glass-border-strong: rgba(255, 255, 255, 0.16);

    /* Text */
    --text-primary: rgba(244, 247, 255, 0.92);
    --text-secondary: rgba(244, 247, 255, 0.68);
    --text-dim: rgba(244, 247, 255, 0.44);

    /* Accents (Electric Blue + Vivid Orange) */
    --accent-blue: #2f81ff;
    --accent-blue-2: #3dd6ff;
    --accent-orange: #ff6a1a;

    /* keep existing token names for compatibility */
    --accent: var(--accent-blue);
    --accent-hover: #1f6feb;
    --accent-glow: rgba(47, 129, 255, 0.24);
    --orange-glow: rgba(255, 106, 26, 0.20);

    /* Borders / dividers */
    --border-color: rgba(255, 255, 255, 0.10);
    --border-highlight: rgba(255, 255, 255, 0.18);

    /* Interactive */
    --item-hover: rgba(255, 255, 255, 0.06);
    --item-active: rgba(47, 129, 255, 0.16);

    /* Motion */
    --ease-smooth: cubic-bezier(0.4, 0, 0.2, 1);
    --transition: all 0.22s ease-in-out;

    /* Radius (soft/continuous corners) */
    --radius-sm: 10px;
    --radius-md: 14px;
    --radius-lg: 18px;

    /* Donut stroke thickness variables (px) */
    --usage-donut-stroke: 2; /* default main ring */
    --usage-donut-input-stroke: 5;
    --usage-donut-cached-stroke: 1;
    --usage-donut-output-stroke: 4;
    --usage-donut-gap: 0.045;
}

/* Light theme kept as a supported mode, but tuned to match the new palette */
body.theme-light {
    --bg-color: #f8fafc;
    --bg-elev-0: rgba(15, 23, 42, 0.03);

    --glass-bg: rgba(255, 255, 255, 0.40);
    --glass-bg-2: rgba(255, 255, 255, 0.62);
    --glass-border: rgba(15, 23, 42, 0.10);
    --glass-border-strong: rgba(15, 23, 42, 0.16);

    --text-primary: rgba(15, 23, 42, 0.92);
    --text-secondary: rgba(15, 23, 42, 0.70);
    --text-dim: rgba(15, 23, 42, 0.48);

    --border-color: rgba(15, 23, 42, 0.12);
    --border-highlight: rgba(15, 23, 42, 0.20);

    --item-hover: rgba(15, 23, 42, 0.05);
    --item-active: rgba(47, 129, 255, 0.12);

    --accent: #2563eb;
    --accent-hover: #1d4ed8;
    --accent-glow: rgba(37, 99, 235, 0.20);
}

* { box-sizing: border-box; }

html, body { height: 100%; }

body {
    margin: 0;
    font-family: 'Noto Sans SC', sans-serif, Inter, ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, "Apple Color Emoji", "Segoe UI Emoji";
    background-color: var(--bg-color);
    color: var(--text-primary);
    height: 100vh;
    overflow: hidden;
    display: flex;
    justify-content: center;
    font-size: 13px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    cursor: url(https://www.lovart.ai/assets/pointer-arrow-mini.png) 0 0, auto;
}

/* subtle animated gradient backdrop (example aesthetic) */
body::before {
    /* Aurora / deep-space mesh gradient backdrop */
    content: "";
    position: fixed;
    inset: 0;
    z-index: -2;
    pointer-events: none;

    background:
        radial-gradient(1200px 700px at 10% 10%, rgba(47, 129, 255, 0.28) 0%, transparent 55%),
        radial-gradient(900px 650px at 80% 15%, rgba(61, 214, 255, 0.18) 0%, transparent 60%),
        radial-gradient(900px 650px at 20% 85%, rgba(255, 106, 26, 0.12) 0%, transparent 62%),
        radial-gradient(1000px 700px at 90% 80%, rgba(114, 91, 255, 0.14) 0%, transparent 62%),
        linear-gradient(180deg, #05070d 0%, #070a12 40%, #0c0a0a 100%);

    filter: saturate(1.05) contrast(1.05);
    opacity: 1;
}

body.theme-light::before {
    background:
        radial-gradient(circle at center, rgba(0, 0, 0, 0.03) 1px, transparent 1px) 0 0 / 40px 40px,
        radial-gradient(800px 600px at 5% 10%, rgba(0, 255, 255, 0.15) 0%, transparent 50%), 
        radial-gradient(600px 500px at 95% 20%, rgba(255, 0, 255, 0.12) 0%, transparent 50%), 
        radial-gradient(700px 600px at 15% 85%, rgba(255, 255, 0, 0.15) 0%, transparent 55%), 
        radial-gradient(900px 700px at 85% 90%, rgba(123, 31, 162, 0.12) 0%, transparent 60%),
        linear-gradient(135deg, #ffffff 0%, #f0f4ff 50%, #fff0f5 100%);
}

body::after {
    /* subtle stars/grain for depth */
    content: "";
    position: fixed;
    inset: 0;
    z-index: -1;
    pointer-events: none;

    background:
        radial-gradient(circle at 20% 30%, rgba(255,255,255,0.10) 0 1px, transparent 2px),
        radial-gradient(circle at 70% 60%, rgba(255,255,255,0.08) 0 1px, transparent 2px),
        radial-gradient(circle at 40% 80%, rgba(255,255,255,0.07) 0 1px, transparent 2px);
    background-size: 180px 180px;
    opacity: 0.22;
    mix-blend-mode: screen;
}

body.resizing {
    user-select: none;
    cursor: col-resize;
}

/* center resizer should also show col-resize */
body.resizing-center {
    user-select: none;
    cursor: col-resize;
}

/* Layout grid: Header | Explorer/Chat/Log | Footer */
#app {
    width: 100%;
    height: 100vh;
    display: grid;
    grid-template-rows: 56px 1fr 120px;
    /* widths are controlled via CSS variables to allow resizing */
    grid-template-columns: var(--explorer-width, 280px) 1fr var(--logs-width, 320px);
    gap: 12px;
    padding: 12px;
    background: radial-gradient(circle at 20% 30%, #4f46e5 0%, transparent 40%), radial-gradient(circle at 80% 70%, #9333ea 0%, transparent 40%), radial-gradient(circle at 50% 50%, #0f172a 0%, #020617 100%);
}
body.theme-light #app {
    background: radial-gradient(circle at 20% 30%, rgb(191, 219, 254) 0%, transparent 40%), radial-gradient(circle at 80% 70%, rgb(209, 250, 229) 0%, transparent 40%), radial-gradient(circle at 50% 50%, #ebebeb40 0%, #dbdbdb00 100%);
}

/* Center split (Preview | Chat) */
#center-panel {
    grid-row: 2 / 3;
    grid-column: 2 / 3;
    display: grid;
    /* left: Preview (resizable), right: Chat */
    grid-template-columns: var(--center-preview-width, 520px) 1fr;
    background: transparent;
    position: relative;
    min-width: 0;
    min-height: 0; /* allow children to size/scroll within the grid */
    gap: 12px;
}
@media (max-width: 1024px) {
    #center-panel {
        grid-column: 2 / 4;
    }
}
@media (max-width: 768px) {
    #center-panel {
        grid-template-columns: 1fr;
        grid-column: 1 / 4;
    }
    #preview-panel {
        display: none;
    }
}

#preview-panel {
    grid-column: 1 / 2;
    min-width: 0;
    min-height: 0;
    padding-right: 5px;

    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    box-shadow: 0 2px 8px -2px rgba(0,0,0,.16);
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);

    position: relative;
    z-index: 1;
    max-height: none;
    overflow: hidden;
}

/* --- Modal (Preview popup) --- */
.modal {
    position: fixed;
    inset: 0;
    display: none;
    z-index: 2000;
}

.modal.open {
    display: block;
}

.modal-backdrop {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.55);
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
}

.modal-dialog {
    position: absolute;
    inset: 5vh 5vw;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border-strong);
    border-radius: var(--radius-lg);
    box-shadow: 0 26px 80px rgba(0,0,0,0.35);
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 10px 12px;
    border-bottom: 1px solid var(--border-color);
}

.modal-title {
    font-weight: 700;
    color: var(--text-primary);
}

.modal-actions {
    display: flex;
    gap: 8px;
    align-items: center;
}

.modal-body {
    flex: 1;
    min-height: 0;
    background: rgba(0,0,0,0.10);
}

.modal-footer {
    padding: 8px 12px;
    border-top: 1px solid var(--border-color);
    color: var(--text-secondary);
    font-size: 12px;
}

.preview-iframe {
    width: 100%;
    height: 100%;
    border: 0;
    background: #fff;
}

/* resizer sits between preview and chat */
#center-resizer {
    left: calc(var(--center-preview-width, 520px) - 8px);
}

/* request status inside chat */
.request-status.in-chat {
    position: sticky;
    bottom: 0;
    margin: 0;
    border-top: 1px solid var(--border-color);
    border-radius: 0;
    flex: 0;
}

/* Header */
header {
    grid-column: 1 / 4;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 16px;
    height: 56px;

    background: linear-gradient(180deg, rgba(18,20,28,0.72) 0%, rgba(18,20,28,0.50) 100%);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    box-shadow:0 2px 8px -2px rgba(0,0,0,.16);

    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
    z-index: 10;
}

body.theme-light header {
    background: var(--glass-bg);
}

header h1 {
    margin: 0;
    font-size: 14px;
    font-weight: 800;
    letter-spacing: -0.02em;
    display: flex;
    align-items: center;
    gap: 10px;
    margin-right: 10px;
}

.header-subtitle {
    color: var(--text-dim);
    font-weight: 500;
}

.live-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 12px;
    border-radius: 999px;

    background: linear-gradient(180deg, rgba(47, 129, 255, 0.14) 0%, rgba(47, 129, 255, 0.06) 100%);
    color: var(--text-primary);
    font-weight: 800;
    border: 1px solid rgba(47, 129, 255, 0.28);
    box-shadow: 0 0 0 3px rgba(47, 129, 255, 0.08);
    user-select: none;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.live-dot {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: var(--accent-blue-2);
    box-shadow: 0 0 14px rgba(61, 214, 255, 0.55);
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% { opacity: 0.5; }
    50% { opacity: 1; }
    100% { opacity: 0.5; }
}

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

.icon-btn {
    background: rgba(255,255,255,0.02);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    border-radius: var(--radius-sm);
    padding: 6px 10px;
    font-size: 11px;
    cursor: url(https://www.lovart.ai/assets/pointer-hand-mini.png) 0 0, auto;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}
.icon-btn:active {
    cursor: url(https://www.lovart.ai/assets/pointer-active-mini.png) 0 0,auto
}

/* icon-only header buttons */
.icon-btn.icon-only {
    width: 34px;
    height: 30px;
    padding: 0;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    line-height: 1;
}

.icon-btn.icon-only .icon {
    width: 16px;
    height: 16px;
    display: block;
}

body:not(.theme-light) .icon-btn.icon-only .dark-icon {
    display: none;
}
body.theme-light .icon-btn.icon-only .light-icon {
    display: none;
}

.icon-btn:hover {
    color: var(--text-primary);
    border-color: rgba(47, 129, 255, 0.28);
    box-shadow: 0 0 0 3px rgba(47, 129, 255, 0.10);
    background: rgba(255,255,255,0.03);
}

#deploy-btn {
    background: gainsboro;
    cursor: auto;
}
body.theme-dark #deploy-btn {
    background: #ffffff40;
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    border: 0;
}

/* Unified select styling (minimal + arrow) */
.select {
    appearance: none;
    background: rgba(255,255,255,0.02);
    color: var(--text-secondary);
    border: 1px solid var(--border-color);
    font-family: inherit;
    font-size: 12px;
    padding: 7px 24px 7px 10px;
    cursor: url(https://www.lovart.ai/assets/pointer-hand-mini.png) 0 0, auto;
    transition: color 0.2s var(--ease-smooth), border-color 0.2s var(--ease-smooth), background 0.2s var(--ease-smooth), box-shadow 0.2s var(--ease-smooth);
    text-align: right;
    border-radius: var(--radius-sm);

    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%23a1a1aa' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 10px center;
}
.select:active {
    cursor: url(https://www.lovart.ai/assets/pointer-active-mini.png) 0 0,auto
}

.select:hover {
    color: var(--text-primary);
    border-color: var(--border-color);
}
body.theme-light .select:hover, body.theme-light .select:focus {
    background-color: #efefef;
}

.select:focus {
    outline: none;
    color: var(--text-primary);
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-glow);
}

body:not(.theme-light) option {
    background: #06070ac2;
}

/* --- Model pricing tooltip (dashboard hover) --- */
.model-select-wrap {
    position: relative;
    display: inline-block;
}

.model-price-tooltip {
    position: absolute;
    top: calc(100% + 10px);
    right: 0;
    width: 260px;
    padding: 12px 12px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    background: rgba(10, 12, 16, 0.86);
    color: var(--text-primary);
    box-shadow: 0 16px 44px rgba(0, 0, 0, 0.35);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    z-index: 60;
}

body.theme-light .model-price-tooltip {
    background: rgba(255, 255, 255, 0.92);
}

.model-price-tooltip[hidden] {
    display: none;
}

.model-price-tooltip::before {
    content: "";
    position: absolute;
    top: -6px;
    right: 14px;
    width: 10px;
    height: 10px;
    transform: rotate(45deg);
    border-left: 1px solid var(--border-color);
    border-top: 1px solid var(--border-color);
    background: inherit;
}

.mpt-title {
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 0.02em;
    margin-bottom: 10px;
    color: var(--text-primary);
}

.mpt-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 8px;
}

.mpt-row {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: 12px;
    padding: 6px 8px;
    border-radius: var(--radius-sm);
    background: rgba(255,255,255,0.03);
    border: 1px solid rgba(255,255,255,0.06);
}

body.theme-light .mpt-row {
    background: rgba(0,0,0,0.03);
    border: 1px solid rgba(0,0,0,0.06);
}

.mpt-row span:first-child {
    font-size: 11px;
    color: var(--text-secondary);
}

.mpt-row span:last-child {
    font-size: 12px;
    font-weight: 700;
    color: var(--text-primary);
    font-variant-numeric: tabular-nums;
}

.mpt-foot {
    margin-top: 10px;
    font-size: 11px;
    color: var(--text-secondary);
}

/* Buttons */
.btn, button {
    transition: var(--transition);
}

.btn {
    border: 1px solid var(--border-color);
    background: rgba(255,255,255,0.02);
    color: var(--text-secondary);
    border-radius: var(--radius-sm);
    padding: 7px 12px;
    font-size: 11px;
    cursor: url(https://www.lovart.ai/assets/pointer-hand-mini.png) 0 0, auto;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}
.btn:active {
    cursor: url(https://www.lovart.ai/assets/pointer-active-mini.png) 0 0,auto
}

.btn:hover {
    color: var(--text-primary);
    border-color: var(--border-highlight);
    background: rgba(255,255,255,0.02);
}

.btn:active { transform: translateY(1px); }

.btn.primary {
    border-color: rgba(47, 129, 255, 0.35);
    background: linear-gradient(180deg, rgba(47,129,255,1) 0%, rgba(31,111,235,1) 100%);
    color: #fff;
    font-weight: 800;
    box-shadow: 0 10px 24px rgba(47, 129, 255, 0.16), 0 0 0 3px rgba(47, 129, 255, 0.12);
}

.btn.primary:hover {
    background: linear-gradient(180deg, rgba(61,214,255,1) 0%, rgba(47,129,255,1) 100%);
}

.btn.secondary {
    border-color: var(--border-color);
}

#clear-btn {
    background: transparent;
    color: var(--text-dim);
    border: 1px solid var(--border-color);
    padding: 4px 10px;
    font-size: 11px;
    border-radius: 4px;
    font-weight: normal;
}
#clear-btn:hover {
    color: var(--text-primary);
    border-color: var(--text-dim);
}

#send-btn {
    background: linear-gradient(180deg, rgba(47,129,255,1) 0%, rgba(31,111,235,1) 100%);
    color: #fff;
    border: 1px solid rgba(47, 129, 255, 0.42);
    padding: 10px 22px;
    font-size: 12px;
    font-weight: 800;
    border-radius: var(--radius-md);
    cursor: url(https://www.lovart.ai/assets/pointer-hand-mini.png) 0 0, auto;
    height: 100px;
    width: 100px;
    border-radius: 100%;
    box-shadow:
        0 14px 30px rgba(47, 129, 255, 0.18),
        0 0 0 3px rgba(47, 129, 255, 0.10);
}
#send-btn:active {
    cursor: url(https://www.lovart.ai/assets/pointer-active-mini.png) 0 0,auto
}
#send-btn:hover {
    filter: brightness(1.03);
}
#send-btn:active { transform: translateY(1px); }

/* Explorer */
#explorer {
    grid-row: 2 / 3;
    grid-column: 1 / 2;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    box-shadow: 0 2px 8px -2px rgba(0,0,0,.16);
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
    display: flex;
    flex-direction: column;
    outline: none;
    position: relative;
    overflow: hidden;
    padding-right: 5px;
}
body.theme-dark header,
body.theme-dark #explorer,
body.theme-dark #preview-panel,
body.theme-dark #chat-container,
body.theme-dark #log-panel,
body.theme-dark footer {
    background: rgba(255, 255, 255, 0.15);
    border-color: rgba(255, 255, 255, 0.4);
    box-shadow: 0 15px 45px 0 rgba(0, 0, 0, 0.5);
}

.conv-header {
    padding: 10px 12px;
    font-size: 11px;
    font-weight: 800;
    color: var(--text-dim);
    letter-spacing: 0.08em;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 10px;
    border-bottom: 1px solid var(--border-color);
    background: rgba(255,255,255,0.02);
}

.conv-title {
    user-select: none;
}

.conv-list {
    padding: 8px 8px;
    display: flex;
    flex-direction: column;
    gap: 4px;
    max-height: 240px;
    overflow-y: auto;
}

.conv-list::-webkit-scrollbar { width: 10px; }
.conv-list::-webkit-scrollbar-thumb {
    background: transparent;
    border: 2px solid transparent;
    background-clip: content-box;
    border-radius: 999px;
}
#explorer:hover .conv-list::-webkit-scrollbar-thumb {
    background-color: rgba(104, 104, 104, 0.44);
}
.conv-list::-webkit-scrollbar-thumb:hover {
    background-color: rgba(15, 23, 42, 0.48) !important;
    background-clip: unset;
}

.conv-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
    padding: 8px 8px;
    border-radius: 10px;
    border: 1px solid transparent;
    cursor: url(https://www.lovart.ai/assets/pointer-hand-mini.png) 0 0, auto;
    color: var(--text-secondary);
    transition: background 0.15s var(--ease-smooth), border-color 0.15s var(--ease-smooth), color 0.15s var(--ease-smooth);
}
.conv-item:active {
    cursor: url(https://www.lovart.ai/assets/pointer-active-mini.png) 0 0,auto
}

.conv-item:hover {
    background: var(--item-hover);
    color: var(--text-primary);
    border-color: var(--border-color);
}

.conv-item.active {
    background: var(--item-active);
    color: var(--text-primary);
    border-color: rgba(47, 129, 255, 0.28);
}

.conv-item-title {
    flex: 1;
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    font-size: 12px;
    font-weight: 600;
}

.conv-actions {
    display: flex;
    gap: 6px;
    align-items: center;
    opacity: 0;
    transition: opacity 0.12s var(--ease-smooth);
}

.conv-item:hover .conv-actions,
.conv-item.active .conv-actions {
    opacity: 1;
}

.conv-btn {
    width: 20px;
    padding: 2px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 8px;
    border: 1px solid transparent;
    background: transparent;
    color: var(--text-secondary);
    cursor: url(https://www.lovart.ai/assets/pointer-hand-mini.png) 0 0, auto;
}
.conv-btn:active {
    cursor: url(https://www.lovart.ai/assets/pointer-active-mini.png) 0 0,auto
}

.conv-btn:hover {
    background: rgba(255,255,255,0.05);
    border-color: var(--border-color);
    color: var(--text-primary);
}

.conv-btn.danger {
    color: rgba(248, 113, 113, 0.95);
}

.conv-btn.danger:hover {
    background: rgba(248, 113, 113, 0.12);
    border-color: rgba(248, 113, 113, 0.25);
}

.conv-divider {
    height: 1px;
    background: var(--border-color);
}

.explorer-header {
    padding: 12px 16px;
    font-size: 11px;
    font-weight: 800;
    color: var(--text-dim);
    letter-spacing: 0.08em;
    display: flex;
    gap: 10px;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--border-color);
}

.badge {
    font-size: 10px;
    color: rgba(61, 214, 255, 0.92);
    border: 1px solid rgba(61, 214, 255, 0.26);
    background: rgba(61, 214, 255, 0.08);
    padding: 4px 10px;
    border-radius: 999px;
    user-select: none;
    text-shadow: 0 0 14px rgba(61, 214, 255, 0.12);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.explorer-toolbar {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 10px 12px;
    border-bottom: 1px solid rgba(255,255,255,0.10);
    background: rgba(255,255,255,0.02);
}

.explorer-toolbar #version-select {
    width: 100%;
    text-align: left;
}

.version-switch-wrap {
    position: relative;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

/* tiny status pill near the switch icon */
.version-status {
    position: absolute;
    top: -6px;
    right: -6px;
    min-width: 14px;
    height: 14px;
    padding: 0 4px;
    border-radius: 999px;
    background: rgba(234, 88, 12, 0.18);
    border: 1px solid rgba(234, 88, 12, 0.35);
    color: var(--text-primary);
    font-size: 9px;
    line-height: 12px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    pointer-events: none;
    opacity: 0;
    transform: translateY(2px);
    transition: opacity 0.15s var(--ease-smooth), transform 0.15s var(--ease-smooth);
}

/* show only on hover/focus for a clean toolbar */
.version-switch-wrap:hover .version-status,
.version-switch-wrap:focus-within .version-status {
    opacity: 1;
    transform: translateY(0);
}

.toolbar-btn {
    background: transparent;
    border: 1px solid transparent;
    color: var(--text-secondary);
    padding: 6px 10px;
    border-radius: 6px;
    font-size: 11px;
    cursor: url(https://www.lovart.ai/assets/pointer-hand-mini.png) 0 0, auto;
    transition: background 0.15s var(--ease-smooth), color 0.15s var(--ease-smooth), border-color 0.15s var(--ease-smooth);
}
.toolbar-btn:active {
    cursor: url(https://www.lovart.ai/assets/pointer-active-mini.png) 0 0,auto
}

.toolbar-btn:hover {
    background: var(--item-hover);
    color: var(--text-primary);
    border-color: var(--border-color);
}

.toolbar-btn.primary {
    color: var(--accent);
}

.toolbar-btn.primary:hover {
    background: rgba(234, 88, 12, 0.08);
    border-color: rgba(234, 88, 12, 0.35);
}

.toolbar-btn.danger {
    color: rgba(248, 113, 113, 0.95);
}

.toolbar-btn.danger:hover {
    background: rgba(248, 113, 113, 0.12);
    border-color: rgba(248, 113, 113, 0.25);
}

.explorer-body {
    flex: 1;
    overflow-y: auto;
    padding: 10px 0;
    max-height: calc(100vh - 250px);
}

.explorer-section-title {
    padding: 4px 16px;
    font-size: 10px;
    color: var(--text-dim);
    text-transform: uppercase;
    margin-bottom: 4px;
}

.file-tree { font-size: 13px; }

.tree-row {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 3px 0;
    cursor: url(https://www.lovart.ai/assets/pointer-hand-mini.png) 0 0, auto;
    color: var(--text-secondary);
    border-left: 2px solid transparent;
    transition: background 0.12s var(--ease-smooth), color 0.12s var(--ease-smooth), border-color 0.12s var(--ease-smooth);
}
.tree-row:active {
    cursor: url(https://www.lovart.ai/assets/pointer-active-mini.png) 0 0,auto
}

.tree-row:hover {
    background: var(--item-hover);
    color: var(--text-primary);
}

.tree-row.active {
    background: var(--item-active);
    color: var(--text-primary);
    border-left-color: var(--accent);
}

/* VSCode-ish change decorations */
.tree-row.changed-added .node-name::after,
.tree-row.changed-modified .node-name::after,
.tree-row.changed-deleted .node-name::after {
    margin-left: 6px;
    font-size: 10px;
    line-height: 1;
    opacity: 0.95;
}

.tree-row.changed-added .node-name::after { content: 'A'; color: #22c55e; }
.tree-row.changed-modified .node-name::after { content: 'M'; color: #60a5fa; }
.tree-row.changed-deleted .node-name::after { content: 'D'; color: #f87171; }

.tree-row.changed-added .node-icon, .tree-row.changed-added .node-name { color: #22c55e; }
.tree-row.changed-modified .node-icon, .tree-row.changed-modified .node-name { color: #60a5fa; }
.tree-row.changed-deleted .node-icon, .tree-row.changed-deleted .node-name { color: #f87171; }

.tree-row.changed-deleted .node-name {
    text-decoration: line-through;
    opacity: 0.7;
}

.caret {
    width: 12px;
    text-align: center;
    font-size: 10px;
    color: var(--text-dim);
    transition: transform 0.2s var(--ease-smooth);
}

.caret.open { transform: rotate(90deg); }

.node-icon {
    width: 16px;
    height: 16px;
    opacity: 0.7;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex: 0 0 16px;
}

.node-icon .icon {
    width: 14px;
    height: 14px;
    display: block;
}

/* icon-only buttons inside toolbars */
.toolbar-btn.icon-only {
    width: 32px;
    height: 28px;
    padding: 0;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    line-height: 1;
    position: relative;
}

.toolbar-btn.icon-only .icon {
    width: 14px;
    height: 14px;
    display: block;
}

/* a11y: keep text for screen readers but hide visually */
.toolbar-btn.icon-only .label {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* prompt icon svg */
.prompt-char {
    width: 18px;
    height: 18px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.prompt-char .icon {
    width: 16px;
    height: 16px;
    display: block;
}

.tree-children {
    overflow: hidden;
    will-change: height, opacity;
}

/* Resizers */
.resizer {
    position: absolute;
    top: 0;
    bottom: 0;
    width: 8px;
    cursor: col-resize;
    z-index: 40;
}

.resizer-vertical {
    /* subtle grab handle */
    background: linear-gradient(to right, transparent, rgba(255,255,255,0.03), transparent);
}
.resizer-vertical:hover {
    background: linear-gradient(to right, #63636357, rgb(131 131 131 / 50%), transparent);
}

#explorer-resizer {
    right: -2px; /* straddle the border */
}

#logs-resizer {
    left: -0px; /* straddle the border */
}

@media (max-width: 768px) {
    /* no resize handles on mobile drawers */
    .resizer { display: none; }

    /* tighter bento spacing on small screens */
    #app {
        gap: 10px;
        padding: 10px;
        grid-template-rows: 56px 1fr 120px;
    }
}

/* Preview (VSCode-ish) */
.preview {
    flex: 1;
    min-height: 0;
    background: transparent;
    border-top: none;
    display: flex;
    flex-direction: column;
    max-height: 100%;
}

.preview-header {
    padding: 0;
    border-bottom: 1px solid rgba(255,255,255,0.10);
    font-size: 11px;
    color: var(--text-dim);
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 8px;
    min-height: 49px;
}
body.theme-light .preview-header {
    border-bottom: 1px solid var(--border-color);
}

.preview-tabs {
    display: flex;
    align-items: stretch;
    gap: 1px;
}

.preview-tabs .tab {
    display: inline-flex;
    justify-content: space-between;
    align-items: center;
    gap: 10px;
    height: 34px;
    padding: 12px 16px;
    border: none;
    background: transparent;
    color: var(--text-dim);
    font-family: inherit;
    font-size: 11px;
    cursor: url(https://www.lovart.ai/assets/pointer-hand-mini.png) 0 0, auto;
    border-right: 1px solid var(--border-color);

    font-weight: 800;
    letter-spacing: 0.08em;
}
.preview-tabs .tab:active {
    cursor: url(https://www.lovart.ai/assets/pointer-active-mini.png) 0 0,auto
}

.preview-tabs .tab.active {
    background: rgba(255,255,255,0.03);
}

.preview-tabs .tab-close {
    font-size: 14px;
    line-height: 1;
    opacity: 0.7;
}

.preview-tabs .tab:hover .tab-close { opacity: 1; }

.preview-title {
    font-weight: 800;
    letter-spacing: 0.08em;
}

.preview-editor {
    flex: 1;
    overflow: auto;
}

.preview-path {
    font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
    font-size: 11px;
    color: var(--text-secondary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    padding: 0 12px;
    flex: 1;
    text-align: right;
}

.preview-content {
    margin: 0;
    padding: 12px 16px;
    color: var(--text-secondary);
    font-size: 12px;
    line-height: 1.5;
    overflow: visible; /* parent handles scroll */
    min-height: 100%;
    font-family: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
}

/* Chat */
#chat-container {
    grid-column: 2 / 3;
    min-width: 0;
    min-height: 0;
    overflow: hidden;
    position: relative;

    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    box-shadow: 0 2px 8px -2px rgba(0,0,0,.16);
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
    padding: 18px;
    scroll-behavior: smooth;
    max-height: 100%;
    display: flex;
    flex-direction: column;
}

/* Ensure the long chat history scrolls without pushing the footer input off-screen */
#messages {
    flex: 1;
    min-height: 0;
    overflow-y: auto;
    padding-bottom: 12px; /* breathing room above request-status */
}

/* subtle scrollbar for a more "tooling" feel */
#messages::-webkit-scrollbar,
#logs::-webkit-scrollbar,
.explorer-body::-webkit-scrollbar,
.preview-editor::-webkit-scrollbar {
    width: 10px;
}
#messages::-webkit-scrollbar-thumb,
#logs::-webkit-scrollbar-thumb,
.explorer-body::-webkit-scrollbar-thumb,
.preview-editor::-webkit-scrollbar-thumb {
    background: rgba(255,255,255,0.10);
    border: 2px solid transparent;
    background-clip: content-box;
    border-radius: 999px;
}
#messages::-webkit-scrollbar-thumb:hover,
#logs::-webkit-scrollbar-thumb:hover,
.explorer-body::-webkit-scrollbar-thumb:hover,
.preview-editor::-webkit-scrollbar-thumb:hover {
    background: rgba(255,255,255,0.16);
    border: 2px solid transparent;
    background-clip: unset;
}
#messages::-webkit-scrollbar-corner,
#logs::-webkit-scrollbar-corner,
.explorer-body::-webkit-scrollbar-corner,
.preview-editor::-webkit-scrollbar-corner {
    background: transparent;
}

.message {
    margin-top: 30px;
    margin-bottom: 30px;
    line-height: 1.6;
    max-width: 880px;
    margin-left: auto;
    margin-right: auto;
    opacity: 0;
    transform: translateY(10px);
    animation: fadeIn 0.4s var(--ease-smooth) forwards;
}

.message.system {
    color: var(--text-dim);
    text-align: center;
    font-style: italic;
    font-size: 12px;
    padding: 0;
}

.message.user {
    color: var(--text-primary);
    /* Make the message row span full width so we can push the bubble to the right */
    max-width: none;
    display: flex;
    justify-content: flex-end;
    gap: 10px;
    background: transparent;
    padding: 0;
    border: 0;
    overflow: visible;
    margin-right: 20px;
}

/* Right-aligned user bubble */
.message.user .message-inner {
    background: rgba(255,255,255,0.03);
    padding: 12px 16px;
    border: 1px solid rgba(255,255,255,0.08);
    border-radius: 24px 4px 24px 24px;
    max-width: min(450px, 70%);
    max-height: 200px;
    overflow: auto;
}

body.theme-light .message.user {
    background: transparent;
}

body.theme-light .message.user .message-inner {
    background: #dfdfdf85;
}

.message.agent {
    color: var(--text-secondary);
    padding-left: 16px;
    border-left: 2px solid rgba(47, 129, 255, 0.80);
    text-shadow: 0 0 14px rgba(47, 129, 255, 0.10);
}

/* Markdown rendering inside agent messages */
.message.agent.markdown {
    padding-left: 16px;
}

.message.agent.markdown p {
    margin: 0 0 10px 0;
}

.message.agent.markdown p:last-child { margin-bottom: 0; }

.message.agent.markdown h1,
.message.agent.markdown h2,
.message.agent.markdown h3,
.message.agent.markdown h4,
.message.agent.markdown h5,
.message.agent.markdown h6 {
    margin: 14px 0 8px 0;
    color: var(--text-primary);
    font-weight: 800;
    letter-spacing: -0.01em;
}

.message.agent.markdown h1 { font-size: 18px; }
.message.agent.markdown h2 { font-size: 16px; }
.message.agent.markdown h3 { font-size: 14px; }
.message.agent.markdown h4,
.message.agent.markdown h5,
.message.agent.markdown h6 { font-size: 13px; }

.message.agent.markdown ul,
.message.agent.markdown ol {
    margin: 0 0 10px 18px;
    padding: 0;
}

.message.agent.markdown li { margin: 4px 0; }

.message.agent.markdown blockquote {
    margin: 10px 0;
    padding: 10px 12px;
    border-left: 2px solid rgba(255, 106, 26, 0.75);
    background: rgba(255, 106, 26, 0.08);
    color: var(--text-primary);
    border-radius: var(--radius-md);
    box-shadow: 0 0 0 3px rgba(255, 106, 26, 0.06);
}

.message.agent.markdown hr {
    border: none;
    border-top: 1px solid var(--border-color);
    margin: 12px 0;
}

.message.agent.markdown a {
    color: rgba(61, 214, 255, 0.92);
    text-decoration: none;
    border-bottom: 1px solid rgba(61, 214, 255, 0.35);
    text-shadow: 0 0 18px rgba(61, 214, 255, 0.12);
}

.message.agent.markdown a:hover {
    color: var(--text-primary);
    border-bottom-color: rgba(61, 214, 255, 0.60);
}

.message.agent.markdown code.inline-code {
    font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
    font-size: 12px;
    padding: 1px 6px;
    border-radius: 6px;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.06);
    color: var(--text-primary);
}

.message.agent.markdown pre.code-block {
    margin: 10px 0;
    padding: 28px 14px 12px 14px; /* space for copy button */
    overflow: auto;
    background: #000;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    position: relative;
}
body.theme-light .message.agent.markdown pre.code-block {
    background: #e8eaed;
}

.message.agent.streaming {
    opacity: 0.95;
}

.copy-code-btn {
    position: absolute;
    top: 6px;
    right: 8px;
    font-size: 11px;
    padding: 4px 8px;
    border-radius: 6px;
    border: 1px solid var(--border-color);
    background: rgba(255,255,255,0.02);
    color: var(--text-secondary);
    cursor: url(https://www.lovart.ai/assets/pointer-hand-mini.png) 0 0, auto;
}
.copy-code-btn:active {
    cursor: url(https://www.lovart.ai/assets/pointer-active-mini.png) 0 0,auto
}

.copy-code-btn:hover {
    color: var(--text-primary);
    border-color: var(--border-highlight);
}

/* --- Message actions (delete / rate) --- */
.msg-actions {
    display: flex;
    justify-content: flex-start;
    gap: 8px;
    transform: translateY(2px);
    transition: opacity 0.18s var(--ease-smooth), transform 0.18s var(--ease-smooth);
}
.message.user .msg-actions {
    opacity: 0;
    justify-content: flex-end;
}
.message.user:hover .msg-actions {
    opacity: 1;
}

.message:hover .msg-actions {
    transform: translateY(0);
}
.delete-message:hover {
    color: rgba(248, 113, 113, 0.95);
    transition: none;
}
.thumbs-up:hover {
    color: yellowgreen;
    transition: none;
}
.thumbs-down:hover {
    color: rgba(47, 129, 255, 0.70);
    transition: none;
}

.msg-action-btn {
    width: 30px;
    height: 30px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0;
    border-radius: 2rem;
    border: none;
    background: transparent;
    color: var(--text-secondary);
    cursor: url(https://www.lovart.ai/assets/pointer-hand-mini.png) 0 0, auto;
}
.msg-action-btn:active {
    cursor: url(https://www.lovart.ai/assets/pointer-active-mini.png) 0 0,auto
}

.msg-action-btn .icon {
    width: 16px;
    height: 16px;
}

.msg-action-btn:hover {
    background: rgb(255 255 255 / 20%);
    border-radius: 2rem;
}
body.theme-light .msg-action-btn:hover {
    background: rgb(161 161 161 / 20%);
}

.msg-action-btn.active {
    color: #fff;
}
.msg-action-btn.thumbs-up.active {
    border-color: rgba(89, 255, 47, 0.40);
    background: rgba(89, 255, 47, 0.22);
    box-shadow: 0 0 0 3px rgba(89, 255, 47, 0.12);
}

.msg-action-btn.thumbs-down.active {
    border-color: rgba(47, 129, 255, 0.40);
    background: rgba(47, 129, 255, 0.22);
    box-shadow: 0 0 0 3px rgba(47, 129, 255, 0.12);
}

body.theme-light .msg-action-btn.active {
    color: rgba(15, 23, 42, 0.92);
}

.message.agent.markdown pre.code-block code.code {
    color: var(--text-primary);
    font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
    font-size: 12px;
    line-height: 1.55;
    white-space: pre;
}

/* Tiny syntax highlight tokens */
.message.agent.markdown pre.code-block .tok.kw { color: #fb923c; }
.message.agent.markdown pre.code-block .tok.str { color: #86efac; }
.message.agent.markdown pre.code-block .tok.num { color: #93c5fd; }
.message.agent.markdown pre.code-block .tok.com { color: #71717a; }
.message.agent.markdown pre.code-block .tok.key { color: #fda4af; }
.message.agent.markdown pre.code-block .tok.val { color: #fde047; }

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

/* Log */
#log-panel {
    grid-row: 2 / 3;
    grid-column: 3 / 4;

    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    box-shadow: 0 2px 8px -2px rgba(0,0,0,.16);
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);

    min-width: 420px;
    padding: 0;
    display: flex;
    flex-direction: column;
    font-size: 12px;
    position: relative;
    overflow: hidden;
}

.log-header {
    padding: 10px 12px;
    font-weight: 800;
    color: var(--text-dim);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    border-bottom: 1px solid var(--border-color);
    font-size: 11px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
}

.log-tools {
    display: flex;
    align-items: center;
    gap: 8px;
}

/* log-group: combobox-style multi-select */
.combo {
    position: relative;
    display: inline-flex;
    align-items: center;
    width: 100px;
    min-width: 100px;
    max-width: 150px;
    height: 28px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-color);
}

.combo:focus-within {
    border-color: var(--border-highlight);
    box-shadow: 0 0 0 3px var(--accent-glow);
}

.combo-trigger {
    width: 100%;
    height: 100%;
    display: inline-flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
    padding: 5px 8px;
    background: transparent;
    border: 0;
    color: var(--text-primary);
    font-size: 11px;
    cursor: url(https://www.lovart.ai/assets/pointer-hand-mini.png) 0 0, auto;
}
.combo-trigger:active {
    cursor: url(https://www.lovart.ai/assets/pointer-active-mini.png) 0 0,auto
}

.combo-label {
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.combo-caret {
    color: var(--text-dim);
    flex: 0 0 auto;
}

.combo-popover {
    position: absolute;
    top: calc(100% + 6px);
    left: 0;
    z-index: 50;
    min-width: 220px;
    max-height: 240px;
    overflow: auto;

    padding: 6px;
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
    background: var(--glass-bg);
    box-shadow: 0 18px 40px rgba(0,0,0,0.25);
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
}

.combo-option {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 6px 8px;
    border-radius: 10px;
    user-select: none;
    cursor: url(https://www.lovart.ai/assets/pointer-hand-mini.png) 0 0, auto;
    font-size: 12px;
    color: var(--text-primary);
}
.combo-option:active {
    cursor: url(https://www.lovart.ai/assets/pointer-active-mini.png) 0 0,auto
}

.combo-option:hover {
    background: var(--item-hover);
}

.log-group-checkbox {
    accent-color: var(--accent);
}

/* compact selects in header */
#log-panel .select {
    font-size: 11px;
    padding: 5px 22px 5px 8px;
}

.log-level-checkbox {
    accent-color: var(--accent);
}

.log-usage-dashboard {
    padding: 10px 12px;
    border-bottom: 1px solid var(--border-color);
    background: rgba(255,255,255,0.02);
}

.usage-row {
    display: grid;
    grid-template-columns: 1fr;
    gap: 10px;
}

@media (min-width: 520px) {
    .usage-row {
        grid-template-columns: 1fr 1fr;
    }
}

.usage-card {
    border: 1px solid rgba(255,255,255,0.10);
    background: rgba(0,0,0,0.08);
    border-radius: var(--radius-md);
    padding: 10px;
}

body.theme-light .usage-card {
    background: rgba(0,0,0,0.03);
    border-color: rgba(0,0,0,0.08);
}

.usage-label {
    font-size: 10px;
    font-weight: 900;
    letter-spacing: 0.10em;
    color: var(--text-dim);
    margin-bottom: 15px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* Donut layout */
.usage-body {
    display: grid;
    grid-template-columns: 1fr;
    gap: 8px;
    justify-items: center;
}

.usage-donut {
    position: relative;
    width: 100%;
    height: 86px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.usage-donut .donut {
    width: 120px;
    height: 120px;
    display: block;
    transform: rotate(-90deg);
}

.donut-track {
    fill: none;
    stroke: rgba(255,255,255,0.10);
    stroke-width: var(--usage-donut-stroke, 6);
}

body.theme-light .donut-track {
    stroke: rgba(15, 23, 42, 0.12);
}

.donut-slice {
    fill: none;
    stroke-width: var(--usage-donut-stroke, 6);
    stroke-linecap: round;
    transition: stroke-dasharray 300ms var(--ease-smooth), stroke-dashoffset 300ms var(--ease-smooth), opacity 180ms var(--ease-smooth);
    opacity: 0.95;
}

.donut-output { stroke: var(--accent-orange); stroke-width: var(--usage-donut-output-stroke, 6); }
.donut-input { stroke: var(--accent-blue); stroke-width: var(--usage-donut-input-stroke, 6); }
.donut-cached {
    stroke: rgba(61, 214, 255, 0.92);
    stroke-width: var(--usage-donut-cached-stroke, 3.5);
    opacity: 0.95;
}

.donut-center {
    position: absolute;
    inset: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 2px;
    pointer-events: none;
}

.donut-total {
    font-size: 14px;
    font-weight: 900;
    font-variant-numeric: tabular-nums;
    color: var(--text-primary);
    line-height: 1.1;
}

.donut-sub {
    font-size: 11px;
    color: var(--text-secondary);
    font-variant-numeric: tabular-nums;
    line-height: 1.1;
}

/* Tooltip */
.usage-tooltip {
    flex-direction: column;
    gap: 10px;
    position: absolute;
    top: 150px;
    width: 230px;
    padding: 10px 10px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    background: rgba(10, 12, 16, 0.86);
    color: var(--text-primary);
    box-shadow: 0 16px 44px rgba(0, 0, 0, 0.35);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    z-index: 60;
}
#usage-last-donut .usage-tooltip {
    right: -120px;
}
#usage-conv-donut .usage-tooltip {
    right: 80px;
}

body.theme-light .usage-tooltip {
    background: rgba(255, 255, 255, 0.92);
}

.usage-tooltip[hidden] {
    display: none;
}

.ut-title {
    font-size: 11px;
    font-weight: 900;
    letter-spacing: 0.08em;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.ut-row {
    display: flex;
    position: relative;
    justify-content: space-between;
    gap: 12px;
    padding: 6px 8px;
    border-radius: var(--radius-sm);
    background: rgba(255,255,255,0.03);
    border: 1px solid rgba(255,255,255,0.06);
    font-size: 12px;
    font-weight: bold;
}
.usage-bar-inner {
    height: 100%;
    transition: width 0.25s var(--ease-smooth);
    position: absolute;
    top: 0;
    left: 0;
    border-radius: var(--radius-sm);
}
.usage-bar-inner.usage-in {
    background: linear-gradient(90deg, rgb(47, 129, 255, 0.55), rgb(47, 129, 255, 0.25));
}
.usage-bar-inner.usage-cached {
    background: linear-gradient(90deg, rgba(61, 214, 255, 0.55), rgba(61, 214, 255, 0.25));
}
.usage-bar-inner.usage-out {
    background: linear-gradient(90deg, rgba(234, 88, 12, 0.55), rgba(234, 88, 12, 0.25));
}

body.theme-light .ut-row {
    background: rgba(0,0,0,0.03);
    border: 1px solid rgba(0,0,0,0.06);
}

.ut-row span:first-child {
    color: var(--text-secondary);
}

.ut-row span:last-child {
    font-weight: 800;
    font-variant-numeric: tabular-nums;
}

/* Hover shows tooltip */
.usage-donut:hover .usage-tooltip,
.usage-donut:focus-within .usage-tooltip {
    display: flex;
}

.usage-kpis { display: none; }

.kpi { display: none; }

.kpi-label { display: none; }

.kpi-value { display: none; }

.usage-meta {
    margin-top: 8px;
    font-size: 11px;
    color: var(--text-secondary);
    font-variant-numeric: tabular-nums;
}

.usage-actions {
    margin-top: 10px;
    display: flex;
    justify-content: flex-end;
}

.usage-actions .toolbar-btn {
    padding: 5px 10px;
    font-size: 11px;
}

.log-entry.hidden { display: none; }

#logs {
    flex: 1;
    overflow-y: auto;
    padding: 12px;
    font-family: 'Fira Code', ui-monospace, monospace;
    max-height: calc(100vh - 200px);
}

/* keep log header tools readable */
#log-panel .toolbar-btn {
    padding: 5px 10px;
    font-size: 11px;
}

#explorer-toggle, #logs-toggle {
    display: none;
}
@media (max-width: 1024px) {
    #log-panel .log-tools {
        flex-wrap: wrap;
        justify-content: flex-end;
    }
    #explorer-toggle, #logs-toggle {
        display: none;
    }
}

.log-entry {
    margin-bottom: 6px;
    color: var(--text-dim);
    word-break: break-all;
    padding-left: 10px;
    position: relative;
}

.log-entry::before {
    content: ">";
    position: absolute;
    left: 0;
    color: var(--accent);
    opacity: 0.55;
}

/* Footer input */
footer {
    grid-row: 3 / 4;
    grid-column: 1 / 4;

    background: linear-gradient(180deg, rgba(18,20,28,0.50) 0%, rgba(18,20,28,0.72) 100%);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    box-shadow: 0 2px 8px -2px rgba(0,0,0,.16);

    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);

    padding: 12px 16px;
    display: flex;
    align-items: center;
    gap: 12px;
    position: relative;
    z-index: 20;
}

body.theme-light footer {
    background: var(--glass-bg);
}

/* Request status (long-running request feedback) */
.request-status {
    flex: 1;
    border: 1px solid var(--border-color);
    background: rgba(255, 255, 255, 0.02);
    border-radius: var(--radius-md);
    padding: 10px 12px;
    box-shadow: 0 0 0 3px rgba(47, 129, 255, 0.06);
}

.request-status .rs-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    margin-bottom: 10px;
}

.request-status .rs-left {
    display: flex;
    align-items: center;
    gap: 16px;
    min-width: 0;
    margin-left: 8px;
}

.request-status .rs-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--accent-blue-2);
    box-shadow: 0 0 18px rgba(61, 214, 255, 0.55);
    background: var(--accent);
    box-shadow: 0 0 0 6px var(--accent-glow);
    opacity: 0.9;
    animation: pulse 1.6s infinite;
}

.request-status .rs-text {
    color: var(--text-secondary);
    font-size: 12px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.request-status .rs-time {
    color: var(--text-dim);
    font-size: 11px;
    font-variant-numeric: tabular-nums;
}

.request-status .rs-bar {
    width: 100%;
    height: 8px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.06);
    overflow: hidden;
}

.request-status .rs-bar-inner {
    height: 100%;
    width: 0%;
    background: linear-gradient(90deg, rgba(234, 88, 12, 0.25), rgba(234, 88, 12, 0.95));
    transition: width 0.25s var(--ease-smooth);
}

.input-wrapper {
    flex: 1;
    display: flex;
    align-items: flex-start;
    background: var(--item-hover);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 8px 12px;
    transition: border-color 0.2s var(--ease-smooth), background 0.2s var(--ease-smooth);
}

.input-stack {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.input-hint {
    color: var(--text-dim);
    font-size: 11px;
    line-height: 1;
    user-select: none;
}

.input-wrapper:focus-within {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-glow);
}

.prompt-char {
    color: var(--accent);
    font-weight: 900;
    margin-right: 10px;
    user-select: none;
}

textarea {
    flex: 1;
    background: transparent;
    border: none;
    color: var(--text-primary);
    resize: none;
    min-height: 24px;
    max-height: 100px;
    font-family: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
    line-height: 1.5;
    padding: 0;
}

textarea:focus { outline: none; }

/* Scrollbars */
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border: 3px solid transparent;
    background-clip: content-box;
    border-radius: 999px;
}
::-webkit-scrollbar-thumb:hover { background-color: var(--text-dim); }

body.theme-light ::-webkit-scrollbar-track { background: transparent; }
body.theme-light #messages::-webkit-scrollbar-thumb,
body.theme-light #logs::-webkit-scrollbar-thumb,
body.theme-light .explorer-body::-webkit-scrollbar-thumb,
body.theme-light .preview-editor::-webkit-scrollbar-thumb {
    background: rgba(104, 104, 104, 0.44);
    border: 2px solid transparent;
    background-clip: content-box;
}
body.theme-light #messages::-webkit-scrollbar-thumb:hover,
body.theme-light #logs::-webkit-scrollbar-thumb:hover,
body.theme-light .explorer-body::-webkit-scrollbar-thumb:hover,
body.theme-light .preview-editor::-webkit-scrollbar-thumb:hover {
    background-color: var(--text-dim);
    background-clip: unset;
}

/* Drawer backdrop (mobile only) */
.drawer-backdrop {
    display: none;
}

@media (max-width: 768px) {
    .drawer-backdrop {
        position: fixed;
        inset: 40px 0 120px 0;
        background: rgba(0, 0, 0, 0.45);
        backdrop-filter: blur(2px);
        z-index: 25;
        display: none;
        top: 0;
        bottom: 0;
    }

    body.panel-explorer-open .drawer-backdrop,
    body.panel-logs-open .drawer-backdrop {
        display: block;
    }
    .drawer-backdrop {
        display: none !important;
    }
}

/* Responsive */
@media (max-width: 1024px) {
    #app {
        grid-template-columns: 240px 1fr;
    }

    #log-panel {
        grid-row: 3 / 4;
        grid-column: 1 / 4;
        border-left: none;
        border-top: 1px solid var(--border-color);
    }

    footer {
        grid-row: 4 / 5;
        grid-column: 1 / 4;
    }

    /* Keep status readable on tighter footer */
    .request-status {
        padding: 6px 10px;
    }
    .request-status .rs-text { font-size: 11px; }
}

@media (max-width: 768px) {
    #explorer-toggle, #logs-toggle, #deploy-btn {
        display: none;
    }
    #app {
        grid-template-columns: 1fr;
    }

    #explorer,
    #log-panel {
        position: fixed;
        top: 80px;
        bottom: 140px;
        z-index: 30;
        width: min(92vw, 360px);
        box-shadow: 0 10px 30px rgba(0,0,0,0.45);
        display: none;
    }

    #explorer {
        left: 0;
        transform: translateX(-105%);
        transition: transform 0.22s var(--ease-smooth);
    }

    #log-panel {
        right: 0;
        transform: translateX(105%);
        transition: transform 0.22s var(--ease-smooth);
    }

    body.panel-explorer-open #explorer { transform: translateX(0); }
    body.panel-logs-open #log-panel { transform: translateX(0); }

    #chat-container {
        grid-row: 1 / 3;
        grid-column: 1 / 2;
        border-right: none;
    }

    footer {
        grid-row: 3 / 4;
        grid-column: 1 / 4;
        padding: 0 12px;
    }
}

.glass-card {
    transition: all 0.5s cubic-bezier(0.23, 1, 0.32, 1);
}
body.theme-light .glass-card {
    background: linear-gradient(136deg, rgb(255 255 255 / 92%) 0px, rgb(255 255 255 / 0%) 97%, rgb(255 255 255 / 90%) 100%) !important;
}
.delay-1 {
    animation-delay: 0.2s !important;
}
.delay-2 {
    animation-delay: 0.4s !important;
}
.delay-3 {
    animation-delay: 0.6s !important;
}
.delay-4 {
    animation-delay: 0.8s !important;
}
.delay-5 {
    animation-delay: 1.0s !important;
}
.fade-in {
    animation: fadeInUp 1.2s cubic-bezier(0.2, 0.8, 0.2, 1) forwards;
    opacity: 0;
}
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(40px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}