:root {
    color-scheme: light;
    --app-bg: #f8fafc;
    --surface: #ffffff;
    --surface-soft: #f7f9fc;
    --ink: #111827;
    --muted: #64748b;
    --border: #d6dce5;
    --border-strong: #b9c2cf;
    --blue: #2563eb;
    --blue-hover: #1d4ed8;
    --green: #16a34a;
    --red: #dc2626;
    --radius: 8px;
    --font-ui: Inter, "Segoe UI", Arial, sans-serif;
    --font-display: "Aptos Display", "Segoe UI", Arial, sans-serif;
    --font-mono: "Cascadia Code", "SFMono-Regular", Consolas, monospace;
}

* {
    box-sizing: border-box;
}

html,
body {
    min-height: 100%;
    margin: 0;
}

body {
    overflow: hidden;
    background: var(--app-bg);
    color: var(--ink);
    font-family: var(--font-ui);
    font-size: 14px;
    -webkit-font-smoothing: antialiased;
}

button,
input,
select,
textarea {
    color: inherit;
    font: inherit;
}

button,
select,
input[type="color"],
input[type="range"],
summary {
    cursor: pointer;
}

button:focus-visible,
select:focus-visible,
textarea:focus-visible,
input:focus-visible,
summary:focus-visible {
    outline: 3px solid rgba(37, 99, 235, .22);
    outline-offset: 2px;
}

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

.app-shell {
    display: grid;
    grid-template-rows: 68px minmax(0, 1fr) 42px;
    width: 100%;
    height: 100vh;
    min-height: 100vh;
    overflow: hidden;
    background: var(--surface);
}

.topbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 28px;
    border-bottom: 1px solid var(--border);
    background: var(--surface);
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: 14px;
    color: var(--ink);
    font-family: var(--font-display);
    font-size: 25px;
    font-weight: 650;
    letter-spacing: -.035em;
    text-decoration: none;
}

.brand-mark {
    display: grid;
    width: 36px;
    height: 32px;
    place-items: center;
}

.brand-mark svg {
    width: 100%;
    height: 100%;
}

.topbar-actions,
.connection-status,
.icon-text-button {
    display: flex;
    align-items: center;
}

.topbar-actions {
    gap: 23px;
}

.connection-status {
    gap: 9px;
    color: #334155;
    font-size: 13px;
    font-weight: 550;
}

.status-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--green);
}

.connection-status.is-error .status-dot {
    background: var(--red);
}

.connection-status.is-busy .status-dot {
    background: #f59e0b;
    animation: pulse 1.1s ease-in-out infinite;
}

.icon-text-button {
    gap: 9px;
    padding: 9px 0 9px 22px;
    border: 0;
    border-left: 1px solid var(--border);
    background: transparent;
    font-size: 13px;
    font-weight: 600;
}

.icon-text-button:hover {
    color: var(--blue);
}

#aboutButton {
    margin-left: 1px;
}

.icon-text-button svg,
.button svg,
.advanced-css svg,
.ai-assistant summary > svg,
.ai-preset-button svg,
.status-icon svg {
    fill: none;
    stroke: currentColor;
    stroke-linecap: round;
    stroke-linejoin: round;
    stroke-width: 1.8;
}

.icon-text-button svg {
    width: 19px;
    height: 19px;
}

.about-dialog {
    width: min(540px, calc(100vw - 32px));
    max-height: min(720px, calc(100vh - 32px));
    margin: auto;
    padding: 0;
    overflow: hidden;
    border: 1px solid #d9e1eb;
    border-radius: 12px;
    background: #fff;
    box-shadow: 0 24px 70px rgba(15, 23, 42, .24);
    color: var(--text);
}

.about-dialog::backdrop {
    background: rgba(15, 23, 42, .48);
    backdrop-filter: blur(2px);
}

.about-dialog-header,
.about-dialog-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.about-dialog-header {
    padding: 22px 24px 18px;
    border-bottom: 1px solid var(--border);
}

.about-heading {
    display: flex;
    align-items: center;
    gap: 13px;
}

.about-mark {
    display: grid;
    width: 42px;
    height: 38px;
    flex: 0 0 auto;
    place-items: center;
}

.about-mark svg {
    width: 40px;
    height: 32px;
}

.about-heading h2 {
    margin: 0;
    font-family: var(--font-display);
    font-size: 20px;
    letter-spacing: -.025em;
}

.about-heading div > span {
    display: block;
    margin-top: 3px;
    color: var(--muted);
    font-size: 11px;
}

.about-close {
    display: grid;
    width: 36px;
    height: 36px;
    padding: 0;
    border: 1px solid var(--border);
    border-radius: 7px;
    background: #fff;
    color: #64748b;
    place-items: center;
}

.about-close:hover {
    border-color: #bfdbfe;
    background: #eff6ff;
    color: var(--blue);
}

.about-close svg,
.sponsor-icon svg,
.profile-link svg {
    fill: none;
    stroke: currentColor;
    stroke-linecap: round;
    stroke-linejoin: round;
    stroke-width: 1.8;
}

.about-close svg {
    width: 18px;
    height: 18px;
}

.about-dialog-body {
    display: grid;
    gap: 16px;
    padding: 22px 24px;
    overflow-y: auto;
}

.about-dialog-body > p {
    margin: 0;
    color: #475569;
    font-size: 13px;
    line-height: 1.65;
}

.about-availability,
.about-sponsor {
    display: grid;
    grid-template-columns: auto minmax(0, 1fr);
    gap: 13px;
    padding: 14px;
    border-radius: 8px;
}

.about-availability {
    border: 1px solid #fde68a;
    background: #fffbeb;
}

.malaysia-mark,
.sponsor-icon {
    display: grid;
    width: 34px;
    height: 34px;
    flex: 0 0 auto;
    place-items: center;
}

.malaysia-mark {
    border-radius: 6px;
    background: #0f172a;
    color: #fff;
    font-size: 10px;
    font-weight: 850;
    letter-spacing: .08em;
}

.about-availability h3,
.about-sponsor h3 {
    margin: 0 0 4px;
    font-size: 12px;
    font-weight: 800;
}

.about-availability p,
.about-sponsor p {
    margin: 0;
    color: #475569;
    font-size: 11px;
    line-height: 1.5;
}

.about-sponsor {
    border: 1px solid #bfdbfe;
    background: #f8fbff;
}

.sponsor-icon {
    border-radius: 6px;
    background: #dbeafe;
    color: #1d4ed8;
}

.sponsor-icon svg {
    width: 18px;
    height: 18px;
}

.about-sponsor a {
    color: #1d4ed8;
    font-weight: 700;
}

.about-sponsor a:hover {
    color: #1e40af;
}

.profile-link {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    margin-top: 9px;
    font-size: 10px;
    text-decoration: none;
}

.profile-link svg {
    width: 13px;
    height: 13px;
}

.about-dialog-footer {
    gap: 18px;
    padding: 14px 24px;
    border-top: 1px solid var(--border);
    background: #f8fafc;
}

.about-dialog-footer > span {
    color: #64748b;
    font-size: 10px;
    line-height: 1.4;
}

.about-dialog-footer .button {
    min-width: 78px;
    min-height: 36px;
}

.workspace {
    display: grid;
    grid-template-columns: minmax(330px, 31%) minmax(420px, 1fr) minmax(330px, 30%);
    min-height: 0;
    background: var(--surface);
}

.panel {
    min-width: 0;
    min-height: 0;
}

.editor-panel,
.preview-panel {
    border-right: 1px solid var(--border);
}

.editor-panel {
    display: grid;
    grid-template-rows: 76px minmax(300px, 1fr) auto;
}

.preview-panel {
    display: grid;
    grid-template-rows: 76px minmax(300px, 1fr) 116px;
}

.style-panel {
    overflow-y: auto;
    scrollbar-color: #cbd5e1 transparent;
}

.panel-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 76px;
    padding: 0 28px;
}

.panel-header h1,
.panel-header h2 {
    margin: 0;
    font-family: var(--font-display);
    font-size: 16px;
    font-weight: 700;
    letter-spacing: -.015em;
}

.editor-header {
    gap: 16px;
}

.sample-field {
    margin-left: auto;
}

.sample-field select {
    min-width: 146px;
    height: 38px;
    padding: 0 36px 0 13px;
    border: 1px solid var(--border-strong);
    border-radius: var(--radius);
    background: var(--surface);
    font-size: 13px;
}

.code-editor {
    display: grid;
    grid-template-columns: 55px 1fr;
    min-height: 0;
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
    background: #fbfcfe;
    overflow: hidden;
}

.line-numbers {
    overflow: hidden;
    padding: 18px 14px 40px 0;
    border-right: 1px solid #e2e8f0;
    color: #8a98aa;
    font-family: var(--font-mono);
    font-size: 13px;
    line-height: 24px;
    text-align: right;
    white-space: pre;
    user-select: none;
}

#sourceEditor {
    width: 100%;
    height: 100%;
    min-height: 300px;
    resize: none;
    padding: 18px 18px 40px 17px;
    border: 0;
    outline: none;
    background: transparent;
    color: #172554;
    font-family: var(--font-mono);
    font-size: 13px;
    font-weight: 500;
    line-height: 24px;
    tab-size: 2;
    white-space: pre;
}

#sourceEditor:focus {
    box-shadow: inset 3px 0 var(--blue);
}

.editor-actions {
    display: grid;
    grid-template-columns: 1fr 52px;
    gap: 12px;
    padding: 22px 28px 24px;
}

.keyboard-tip {
    grid-column: 1 / -1;
    margin: 1px 0 0;
    color: var(--muted);
    font-size: 12px;
}

kbd {
    font-family: inherit;
}

.button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    min-height: 42px;
    border: 1px solid transparent;
    border-radius: var(--radius);
    background: transparent;
    font-size: 13px;
    font-weight: 700;
    transition: background-color .16s ease, border-color .16s ease, color .16s ease, transform .16s ease;
}

.button:hover:not(:disabled) {
    transform: translateY(-1px);
}

.button:active:not(:disabled) {
    transform: translateY(0);
}

.button:disabled {
    cursor: not-allowed;
    opacity: .48;
}

.button svg {
    width: 20px;
    height: 20px;
}

.button-primary {
    border-color: var(--blue);
    background: var(--blue);
    color: #fff;
}

.button-primary:hover:not(:disabled) {
    border-color: var(--blue-hover);
    background: var(--blue-hover);
}

.button-secondary,
.button-icon,
.zoom-value {
    border-color: var(--border-strong);
    background: var(--surface);
    color: #334155;
}

.button-secondary:hover:not(:disabled),
.button-icon:hover:not(:disabled),
.zoom-value:hover {
    border-color: #94a3b8;
    background: var(--surface-soft);
    color: var(--ink);
}

.button-icon {
    width: 52px;
    padding: 0;
}

.button-icon.compact {
    width: 36px;
    min-height: 36px;
}

.generate-button svg {
    fill: currentColor;
    stroke: none;
}

.preview-header {
    border-bottom: 1px solid var(--border);
}

.zoom-controls {
    display: flex;
    gap: 7px;
}

.zoom-value {
    min-width: 57px;
    height: 36px;
    padding: 0 8px;
    border-style: solid;
    border-width: 1px;
    border-radius: var(--radius);
    font-size: 12px;
}

.preview-stage {
    position: relative;
    min-height: 0;
    overflow: hidden;
    background-color: #fff;
    background-image: radial-gradient(#dfe5ec 1px, transparent 1px);
    background-size: 24px 24px;
}

.preview-stage[data-background="transparent"] {
    background-color: #fff;
    background-image:
        linear-gradient(45deg, #eef1f5 25%, transparent 25%),
        linear-gradient(-45deg, #eef1f5 25%, transparent 25%),
        linear-gradient(45deg, transparent 75%, #eef1f5 75%),
        linear-gradient(-45deg, transparent 75%, #eef1f5 75%);
    background-position: 0 0, 0 8px, 8px -8px, -8px 0;
    background-size: 16px 16px;
}

.empty-state,
.loading-state,
.error-state {
    position: absolute;
    inset: 0;
    z-index: 2;
    display: flex;
    align-items: center;
    justify-content: center;
}

.empty-state,
.loading-state {
    flex-direction: column;
    text-align: center;
}

.empty-state[hidden],
.loading-state[hidden],
.error-state[hidden],
.diagram-viewport[hidden] {
    display: none;
}

.empty-symbol {
    width: 72px;
    color: #94a3b8;
}

.empty-symbol svg {
    width: 100%;
    fill: #fff;
    stroke: currentColor;
    stroke-width: 1.5;
}

.empty-state h3 {
    margin: 16px 0 6px;
    font-family: var(--font-display);
    font-size: 16px;
}

.empty-state p,
.loading-state span,
.error-state p {
    margin: 0;
    color: var(--muted);
    font-size: 13px;
}

.loading-state {
    gap: 9px;
    background: rgba(255, 255, 255, .86);
}

.spinner {
    width: 30px;
    height: 30px;
    margin-bottom: 5px;
    border: 3px solid #dbeafe;
    border-top-color: var(--blue);
    border-radius: 50%;
    animation: spin .8s linear infinite;
}

.error-state {
    gap: 14px;
    padding: 32px;
    background: #fff;
}

.error-state > svg {
    flex: 0 0 auto;
    width: 30px;
    fill: none;
    stroke: var(--red);
    stroke-linecap: round;
    stroke-linejoin: round;
    stroke-width: 1.8;
}

.error-state strong {
    display: block;
    margin-bottom: 5px;
    color: #991b1b;
}

.error-state p {
    max-width: 440px;
    line-height: 1.5;
}

.diagram-viewport {
    position: absolute;
    inset: 0;
    display: grid;
    overflow: auto;
    place-items: center;
    padding: 0;
}

#diagramImage {
    display: block;
    max-width: calc(100% - 84px);
    max-height: calc(100% - 84px);
    transform: scale(var(--diagram-scale, 1));
    transform-origin: center;
    transition: transform .18s ease;
}

.export-bar {
    display: grid;
    grid-template-columns: 1fr 1fr;
    align-items: center;
    gap: 18px;
    padding: 27px 36px;
    border-top: 1px solid var(--border);
    background: var(--surface);
}

.export-button {
    position: relative;
    min-height: 48px;
}

.quality-tag {
    position: absolute;
    right: 13px;
    padding: 2px 5px;
    border: 1px solid rgba(255, 255, 255, .55);
    border-radius: 4px;
    font-size: 10px;
    font-weight: 800;
}

.style-panel > .panel-header {
    height: 54px;
    padding-bottom: 0;
}

#styleForm {
    padding: 0 22px 16px;
}

.control-section {
    min-width: 0;
    margin: 0;
    padding: 11px 0;
    border: 0;
    border-bottom: 1px solid #e6eaf0;
}

.control-section legend {
    margin-bottom: 9px;
    padding: 0;
    font-size: 13px;
    font-weight: 750;
}

.theme-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(70px, 1fr));
    gap: 8px;
}

.theme-option {
    position: relative;
    display: flex;
    min-width: 0;
    flex-direction: column;
    align-items: center;
    gap: 7px;
    cursor: pointer;
    color: #475569;
    font-size: 10px;
    font-weight: 650;
    text-align: center;
}

.theme-option input {
    position: absolute;
    opacity: 0;
    pointer-events: none;
}

.theme-preview {
    position: relative;
    display: block;
    width: 100%;
    height: 52px;
    border: 1px solid var(--border-strong);
    border-radius: 7px;
    background: #fff;
}

.theme-preview::before,
.theme-preview::after {
    position: absolute;
    left: 50%;
    width: 1px;
    height: 8px;
    background: #475569;
    content: "";
}

.theme-preview::before {
    top: 15px;
}

.theme-preview::after {
    bottom: 8px;
}

.theme-preview i {
    position: absolute;
    left: 50%;
    display: block;
    width: 18px;
    height: 10px;
    border: 1px solid #475569;
    background: #f8fafc;
    transform: translateX(-50%);
}

.theme-preview i:first-child {
    top: 5px;
}

.theme-preview i:nth-child(2) {
    top: 20px;
    width: 14px;
    height: 14px;
    transform: translateX(-50%) rotate(45deg);
}

.theme-preview i:last-child {
    bottom: 4px;
}

.theme-pastel i:first-child { background: #dbeafe; }
.theme-pastel i:nth-child(2) { background: #fce7f3; }
.theme-pastel i:last-child { background: #d1fae5; }
.theme-academic i:first-child { background: #dbeafe; }
.theme-academic i:nth-child(2) { background: #fef3c7; }
.theme-academic i:last-child { background: #bfdbfe; }
.theme-brutalism i { border-width: 2px; border-color: #111; }
.theme-brutalism i:first-child,
.theme-brutalism i:last-child { background: #111; }
.theme-neobrutalism i { border-width: 2px; border-color: #111; }
.theme-neobrutalism i:first-child { background: #c7f464; }
.theme-neobrutalism i:nth-child(2) { background: #8b5cf6; }
.theme-neobrutalism i:last-child { background: #f97316; }
.theme-ocean i:first-child { background: #dbeafe; border-color: #0369a1; }
.theme-ocean i:nth-child(2) { background: #cffafe; border-color: #0369a1; }
.theme-ocean i:last-child { background: #e0e7ff; border-color: #0369a1; }
.theme-forest i:first-child { background: #dcfce7; border-color: #166534; }
.theme-forest i:nth-child(2) { background: #ecfccb; border-color: #166534; }
.theme-forest i:last-child { background: #fef3c7; border-color: #166534; }
.theme-sunset i:first-child { background: #ffedd5; border-color: #c2410c; }
.theme-sunset i:nth-child(2) { background: #fce7f3; border-color: #c2410c; }
.theme-sunset i:last-child { background: #fef3c7; border-color: #c2410c; }
.theme-custom {
    border-style: dashed;
    background-color: #f8fafc;
}
.theme-custom i:first-child { background: #38bdf8; border-color: #0f172a; }
.theme-custom i:nth-child(2) { background: #f472b6; border-color: #0f172a; }
.theme-custom i:last-child { background: #a3e635; border-color: #0f172a; }

.theme-option input:checked + .theme-preview {
    border: 2px solid var(--blue);
    box-shadow: 0 0 0 2px rgba(37, 99, 235, .1);
}

.theme-option input:checked ~ span:last-child {
    color: var(--blue);
    font-weight: 800;
}

.theme-option input:focus-visible + .theme-preview {
    outline: 3px solid rgba(37, 99, 235, .22);
    outline-offset: 2px;
}

.color-list {
    display: grid;
    gap: 5px;
}

.color-field {
    display: grid;
    grid-template-columns: 84px 1fr;
    align-items: center;
    gap: 12px;
    color: #334155;
    font-size: 12px;
}

.color-input-wrap,
.custom-background {
    display: flex;
    align-items: center;
    gap: 10px;
    min-height: 30px;
    padding: 2px 9px 2px 6px;
    border: 1px solid var(--border-strong);
    border-radius: 7px;
    background: var(--surface);
}

input[type="color"] {
    width: 28px;
    height: 23px;
    padding: 0;
    border: 0;
    border-radius: 4px;
    background: none;
}

input[type="color"]::-webkit-color-swatch-wrapper {
    padding: 0;
}

input[type="color"]::-webkit-color-swatch {
    border: 1px solid #cbd5e1;
    border-radius: 4px;
}

.color-input-wrap output,
.custom-background output {
    color: #475569;
    font-family: var(--font-mono);
    font-size: 11px;
}

.range-row {
    display: grid;
    grid-template-columns: 1fr 66px;
    align-items: center;
    gap: 14px;
}

input[type="range"] {
    width: 100%;
    accent-color: var(--blue);
}

.range-row output {
    padding: 6px 7px;
    border: 1px solid var(--border-strong);
    border-radius: 7px;
    color: #334155;
    font-size: 11px;
    font-weight: 700;
    text-align: center;
}

.segmented-control {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
}

.segmented-control label {
    position: relative;
    min-width: 0;
}

.segmented-control input {
    position: absolute;
    opacity: 0;
    pointer-events: none;
}

.segmented-control span {
    display: grid;
    min-height: 32px;
    place-items: center;
    border: 1px solid var(--border-strong);
    color: #475569;
    font-size: 10px;
    font-weight: 650;
}

.segmented-control label:first-child span {
    border-radius: 7px 0 0 7px;
}

.segmented-control label + label span {
    border-left: 0;
}

.segmented-control label:last-child span {
    border-radius: 0 7px 7px 0;
}

.segmented-control input:checked + span {
    position: relative;
    z-index: 1;
    border-color: var(--blue);
    background: #eff6ff;
    color: var(--blue);
}

.segmented-control input:focus-visible + span {
    outline: 3px solid rgba(37, 99, 235, .22);
    outline-offset: 2px;
}

.custom-background {
    width: 100%;
    margin-top: 6px;
}

.custom-background.is-inactive {
    opacity: .48;
}

.advanced-css {
    padding: 11px 0;
    border-bottom: 1px solid #e6eaf0;
}

.advanced-css summary {
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 13px;
    font-weight: 750;
    list-style: none;
}

.advanced-css summary::-webkit-details-marker {
    display: none;
}

.advanced-css summary svg {
    width: 18px;
    transition: transform .16s ease;
}

.advanced-css[open] summary svg {
    transform: rotate(180deg);
}

.advanced-css textarea {
    width: 100%;
    height: 60px;
    min-height: 60px;
    margin-top: 8px;
    resize: vertical;
    padding: 10px 11px;
    border: 1px solid var(--border-strong);
    border-radius: 7px;
    background: #fbfcfe;
    font-family: var(--font-mono);
    font-size: 11px;
    line-height: 1.55;
}

.advanced-css p {
    margin: 5px 0 0;
    color: var(--muted);
    font-size: 10px;
    line-height: 1.4;
}

.advanced-css code {
    font-family: var(--font-mono);
}

.ai-assistant {
    padding: 12px 0;
    border-bottom: 1px solid #e6eaf0;
}

.ai-assistant summary {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    cursor: pointer;
    list-style: none;
}

.ai-assistant summary::-webkit-details-marker {
    display: none;
}

.ai-summary-title {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 7px;
    font-size: 13px;
    font-weight: 750;
}

.experimental-badge {
    padding: 3px 6px;
    border: 1px solid #f59e0b;
    border-radius: 4px;
    background: #fffbeb;
    color: #92400e;
    font-size: 8px;
    font-weight: 800;
    letter-spacing: .05em;
    line-height: 1;
    text-transform: uppercase;
}

.ai-assistant summary > svg {
    width: 18px;
    flex: 0 0 auto;
    transition: transform .16s ease;
}

.ai-assistant[open] summary > svg {
    transform: rotate(180deg);
}

.ai-assistant-body {
    display: grid;
    gap: 10px;
    padding-top: 10px;
}

.ai-warning {
    margin: 0;
    padding: 8px 9px;
    border-left: 3px solid #f59e0b;
    background: #fffbeb;
    color: #78350f;
    font-size: 10px;
    line-height: 1.45;
}

.ai-key-card {
    padding: 10px;
    border: 1px solid var(--border);
    border-radius: 7px;
    background: #fbfcfe;
}

.ai-key-heading {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 10px;
}

.ai-key-heading strong,
.ai-key-heading span {
    display: block;
}

.ai-key-heading strong {
    color: #1e293b;
    font-size: 11px;
}

.ai-key-heading div > span,
.ai-key-card > p {
    color: var(--muted);
    font-size: 9px;
    line-height: 1.4;
}

.ai-key-status {
    flex: 0 0 auto;
    color: #64748b;
    font-size: 9px;
    font-weight: 750;
}

.ai-key-status.is-configured {
    color: #047857;
}

.ai-key-status.is-error {
    color: #b91c1c;
}

.ai-key-controls {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 7px;
    margin-top: 8px;
}

.ai-key-controls input {
    width: 100%;
    min-width: 0;
    height: 34px;
    padding: 0 9px;
    border: 1px solid var(--border-strong);
    border-radius: 6px;
    background: #fff;
    color: #0f172a;
    font-family: var(--font-mono);
    font-size: 10px;
}

.ai-key-controls input:focus {
    border-color: var(--blue);
    outline: 3px solid rgba(37, 99, 235, .14);
}

.ai-key-button {
    min-height: 34px;
    padding: 0 10px;
    color: var(--blue);
    font-size: 10px;
}

.ai-key-card > p {
    margin: 6px 0 0;
}

.ai-preset-group {
    min-width: 0;
    margin: 0;
    padding: 0;
    border: 0;
}

.ai-preset-group legend {
    margin-bottom: 7px;
    color: #475569;
    font-size: 10px;
    font-weight: 750;
}

.ai-preset-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 7px;
}

.ai-preset-button {
    display: flex;
    align-items: center;
    gap: 7px;
    min-height: 44px;
    padding: 7px 8px;
    border: 1px solid #cbd5e1;
    border-radius: 7px;
    background: #fff;
    color: #334155;
    font: inherit;
    font-size: 9px;
    font-weight: 700;
    line-height: 1.25;
    text-align: left;
}

.ai-preset-button:hover:not(:disabled) {
    border-color: #93c5fd;
    background: #eff6ff;
    color: #1d4ed8;
}

.ai-preset-button:focus-visible {
    outline: 3px solid rgba(37, 99, 235, .22);
    outline-offset: 1px;
}

.ai-preset-button:disabled {
    cursor: not-allowed;
    opacity: .47;
}

.ai-preset-button svg {
    width: 17px;
    height: 17px;
    flex: 0 0 auto;
    stroke-width: 1.7;
}

.ai-preset-wide {
    grid-column: 1 / -1;
}

.ai-feedback {
    min-height: 30px;
    padding: 7px 9px;
    border: 1px solid #dbe3ed;
    border-radius: 6px;
    background: #f8fafc;
    color: #475569;
    font-size: 9px;
    line-height: 1.4;
}

.ai-feedback.is-working,
.ai-feedback.is-success,
.ai-feedback.is-error {
    padding-left: 28px;
    position: relative;
}

.ai-feedback.is-working::before {
    content: "";
    position: absolute;
    top: 50%;
    left: 9px;
    width: 10px;
    height: 10px;
    margin-top: -6px;
    border: 2px solid #bfdbfe;
    border-top-color: #2563eb;
    border-radius: 50%;
    animation: spin .75s linear infinite;
}

.ai-feedback.is-success {
    border-color: #a7f3d0;
    background: #ecfdf5;
    color: #065f46;
}

.ai-feedback.is-success::before,
.ai-feedback.is-error::before {
    position: absolute;
    top: 6px;
    left: 9px;
    font-size: 12px;
    font-weight: 900;
}

.ai-feedback.is-success::before {
    content: "✓";
}

.ai-feedback.is-error {
    border-color: #fecaca;
    background: #fef2f2;
    color: #991b1b;
}

.ai-feedback.is-error::before {
    content: "!";
}

.ai-undo-button {
    width: 100%;
    min-height: 32px;
    color: #334155;
    font-size: 10px;
}

.ai-undo-button[hidden] {
    display: none;
}

.ai-model {
    margin: -3px 0 0;
    color: #94a3b8;
    font-size: 8px;
    text-align: center;
}

.save-section {
    display: grid;
    grid-template-columns: 1fr auto;
    align-items: center;
    gap: 14px;
    padding-top: 8px;
}

.save-section strong,
.save-section span {
    display: block;
}

.save-section strong {
    margin-bottom: 3px;
    font-size: 13px;
}

.save-section > div > span {
    color: var(--muted);
    font-size: 10px;
}

.save-button {
    min-height: 34px;
    padding: 0 13px;
    color: var(--blue);
}

.save-button svg {
    width: 17px;
    height: 17px;
}

.statusbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 28px;
    border-top: 1px solid var(--border);
    background: var(--surface);
    color: #475569;
    font-size: 12px;
}

.status-message {
    display: flex;
    align-items: center;
    gap: 9px;
}

.status-icon {
    display: grid;
    width: 20px;
    height: 20px;
    place-items: center;
    border-radius: 50%;
}

.status-icon svg {
    width: 20px;
    height: 20px;
}

.status-icon.is-ready {
    color: var(--green);
}

.status-icon.is-busy {
    color: #d97706;
    animation: pulse 1.1s ease-in-out infinite;
}

.status-icon.is-error {
    color: var(--red);
}

.status-meta {
    color: #7c899b;
}

.toast {
    position: fixed;
    z-index: 20;
    right: 24px;
    bottom: 62px;
    max-width: min(360px, calc(100vw - 48px));
    padding: 12px 15px;
    border: 1px solid #bfdbfe;
    border-radius: var(--radius);
    background: #eff6ff;
    box-shadow: 0 10px 30px rgba(15, 23, 42, .15);
    color: #1e40af;
    font-size: 12px;
    font-weight: 650;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

@keyframes pulse {
    50% { opacity: .45; }
}

@media (max-width: 1180px) {
    .workspace {
        grid-template-columns: minmax(310px, 37%) 1fr;
    }

    .style-panel {
        grid-column: 1 / -1;
        border-top: 1px solid var(--border);
    }

    #styleForm {
        display: grid;
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 0 28px;
    }

    .theme-section,
    .color-section {
        grid-row: span 2;
    }

    .advanced-css,
    .ai-assistant,
    .save-section {
        align-self: start;
    }
}

@media (max-width: 760px) {
    body {
        overflow: auto;
    }

    .app-shell {
        display: block;
        height: auto;
        overflow: visible;
    }

    .topbar {
        min-height: 62px;
        padding: 0 16px;
    }

    .brand {
        gap: 9px;
        font-size: 20px;
    }

    .brand-mark {
        width: 30px;
        height: 27px;
    }

    .connection-status span:last-child,
    .icon-text-button span {
        display: none;
    }

    .topbar-actions {
        gap: 12px;
    }

    .icon-text-button {
        padding-left: 14px;
    }

    .about-dialog {
        width: calc(100vw - 24px);
        max-height: calc(100vh - 24px);
    }

    .about-dialog-header,
    .about-dialog-body,
    .about-dialog-footer {
        padding-right: 17px;
        padding-left: 17px;
    }

    .about-dialog-header {
        padding-top: 17px;
        padding-bottom: 14px;
    }

    .about-dialog-body {
        gap: 12px;
        padding-top: 17px;
        padding-bottom: 17px;
    }

    .about-heading h2 {
        font-size: 18px;
    }

    .about-dialog-footer {
        align-items: flex-start;
    }

    .workspace {
        display: block;
    }

    .editor-panel,
    .preview-panel {
        border-right: 0;
        border-bottom: 1px solid var(--border);
    }

    .editor-panel {
        grid-template-rows: auto 430px auto;
    }

    .preview-panel {
        grid-template-rows: auto 520px auto;
    }

    .panel-header {
        height: auto;
        min-height: 68px;
        padding: 14px 16px;
    }

    .code-editor {
        grid-template-columns: 44px 1fr;
    }

    .line-numbers {
        padding-right: 10px;
    }

    .editor-actions,
    .export-bar {
        padding: 18px 16px;
    }

    .export-bar {
        grid-template-columns: 1fr;
        gap: 10px;
    }

    #styleForm {
        display: block;
        padding: 0 16px 24px;
    }

    .theme-grid {
        gap: 6px;
    }

    .theme-preview {
        height: 58px;
    }

    .ai-preset-grid {
        grid-template-columns: 1fr;
    }

    .ai-preset-wide {
        grid-column: auto;
    }

    .statusbar {
        min-height: 42px;
        padding: 0 16px;
    }

    .status-meta {
        display: none;
    }
}

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        scroll-behavior: auto !important;
        transition-duration: .01ms !important;
        animation-duration: .01ms !important;
        animation-iteration-count: 1 !important;
    }
}