:root {
    color-scheme: dark;
    font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    --background: #11100e;
    --surface: #191816;
    --surface-raised: #211f1c;
    --line: #35312c;
    --muted: #9b958c;
    --text: #f7f3eb;
    --accent: #f6c344;
    --accent-dark: #2d2410;
    --green: #72d69a;
    --red: #ff786f;
    --blue: #73b7ff;
}

* {
    box-sizing: border-box;
}

html {
    min-width: 320px;
    background: var(--background);
}

body {
    margin: 0;
    min-height: 100vh;
    color: var(--text);
    background:
        radial-gradient(circle at 50% -25%, rgba(246, 195, 68, 0.15), transparent 38rem),
        var(--background);
}

button,
input,
textarea {
    font: inherit;
}

button,
a,
input,
textarea {
    outline-color: var(--accent);
    outline-offset: 3px;
}

a {
    color: inherit;
}

main {
    width: min(1500px, calc(100% - 48px));
    margin: 0 auto;
}

.site-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    min-height: 92px;
    border-bottom: 1px solid var(--line);
}

.brand {
    display: inline-flex;
    gap: 13px;
    align-items: center;
    text-decoration: none;
}

.brand-mark {
    display: grid;
    width: 42px;
    height: 42px;
    place-items: center;
    color: #17130a;
    border-radius: 12px;
    background: var(--accent);
    box-shadow: 0 0 32px rgba(246, 195, 68, 0.2);
    font: 900 18px/1 ui-monospace, SFMono-Regular, Consolas, monospace;
}

.brand strong,
.brand small {
    display: block;
}

.brand strong {
    font-size: 15px;
    letter-spacing: 0.01em;
}

.brand small {
    margin-top: 2px;
    color: var(--muted);
    font-size: 12px;
}

.github-link {
    color: var(--muted);
    font-size: 13px;
    font-weight: 700;
    text-underline-offset: 4px;
}

.github-link:hover {
    color: var(--text);
}

.hero {
    display: flex;
    align-items: end;
    justify-content: space-between;
    gap: 32px;
    padding: 58px 0 44px;
}

.eyebrow,
.panel-kicker {
    margin: 0;
    color: var(--accent);
    font: 800 11px/1.2 ui-monospace, SFMono-Regular, Consolas, monospace;
    letter-spacing: 0.14em;
}

h1 {
    max-width: 850px;
    margin: 13px 0 15px;
    font-size: clamp(38px, 6vw, 74px);
    line-height: 0.98;
    letter-spacing: -0.055em;
}

.hero-copy {
    max-width: 720px;
    margin: 0;
    color: var(--muted);
    font-size: 17px;
    line-height: 1.6;
}

.hero-copy strong {
    color: var(--text);
}

.runtime-badge {
    display: flex;
    flex: 0 0 auto;
    gap: 9px;
    align-items: center;
    padding: 10px 13px;
    color: var(--green);
    border: 1px solid rgba(114, 214, 154, 0.25);
    border-radius: 999px;
    background: rgba(114, 214, 154, 0.06);
    font: 700 11px/1 ui-monospace, SFMono-Regular, Consolas, monospace;
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.status-dot {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: currentColor;
    box-shadow: 0 0 10px currentColor;
}

.notice {
    margin-bottom: 18px;
    padding: 12px 16px;
    color: #c9c2b8;
    border: 1px solid #473c25;
    border-radius: 10px;
    background: rgba(246, 195, 68, 0.06);
    font-size: 12px;
    line-height: 1.5;
}

.notice strong {
    color: var(--accent);
}

.workspace {
    display: grid;
    grid-template-columns: minmax(0, 1.7fr) minmax(340px, 0.8fr);
    gap: 14px;
}

.panel,
.diagnostics-panel {
    overflow: hidden;
    border: 1px solid var(--line);
    border-radius: 14px;
    background: rgba(25, 24, 22, 0.92);
    box-shadow: 0 22px 70px rgba(0, 0, 0, 0.18);
}

.panel-header {
    display: flex;
    min-height: 76px;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    padding: 15px 17px;
    border-bottom: 1px solid var(--line);
}

.panel-header.compact {
    min-height: 70px;
}

.panel-header h2,
.diagnostics-heading h2 {
    margin: 5px 0 0;
    font: 700 14px/1.2 ui-monospace, SFMono-Regular, Consolas, monospace;
}

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

.button {
    height: 34px;
    padding: 0 13px;
    color: var(--text);
    border: 1px solid var(--line);
    border-radius: 7px;
    background: var(--surface-raised);
    cursor: pointer;
    font-size: 12px;
    font-weight: 800;
}

.button:hover:not(:disabled) {
    border-color: #625b51;
    transform: translateY(-1px);
}

.button.ghost {
    color: var(--muted);
    border-color: transparent;
    background: transparent;
}

.button.run {
    display: inline-flex;
    gap: 10px;
    align-items: center;
    color: #17130a;
    border-color: var(--accent);
    background: var(--accent);
}

.button.primary {
    color: #17130a;
    border-color: var(--accent);
    background: var(--accent);
}

.button:disabled {
    cursor: progress;
    opacity: 0.6;
}

.sample-dialog {
    width: min(1040px, calc(100vw - 32px));
    max-width: none;
    height: min(720px, calc(100dvh - 32px));
    max-height: none;
    padding: 0;
    color: var(--text);
    border: 1px solid #4a443c;
    border-radius: 14px;
    background: var(--surface);
    box-shadow: 0 30px 100px rgba(0, 0, 0, 0.55);
    opacity: 0;
    transform: translateY(10px) scale(0.985);
    transition:
        opacity 180ms cubic-bezier(0.16, 1, 0.3, 1),
        transform 180ms cubic-bezier(0.16, 1, 0.3, 1);
}

.sample-dialog[open] {
    display: block;
    opacity: 1;
    transform: none;
}

.sample-dialog::backdrop {
    background: rgba(8, 7, 6, 0.78);
    opacity: 1;
}

@starting-style {
    .sample-dialog[open] {
        opacity: 0;
        transform: translateY(10px) scale(0.985);
    }

    .sample-dialog[open]::backdrop {
        opacity: 0;
    }
}

.sample-dialog-shell {
    display: grid;
    height: 100%;
    grid-template-rows: auto minmax(0, 1fr);
}

.sample-dialog-header {
    display: flex;
    min-height: 82px;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    padding: 17px 20px;
    border-bottom: 1px solid var(--line);
}

.sample-dialog-header h2 {
    margin: 0;
    font-size: 18px;
    letter-spacing: -0.015em;
}

.sample-dialog-header p {
    max-width: 62ch;
    margin: 5px 0 0;
    color: var(--muted);
    font-size: 12px;
    line-height: 1.5;
}

.dialog-close {
    display: grid;
    width: 34px;
    height: 34px;
    flex: 0 0 auto;
    place-items: center;
    padding: 0;
    color: var(--muted);
    border: 1px solid transparent;
    border-radius: 7px;
    background: transparent;
    cursor: pointer;
}

.dialog-close:hover {
    color: var(--text);
    border-color: var(--line);
    background: var(--surface-raised);
}

.dialog-close svg {
    width: 15px;
    fill: none;
    stroke: currentColor;
    stroke-linecap: round;
    stroke-width: 1.5;
}

.sample-dialog-content {
    display: grid;
    min-height: 0;
    grid-template-columns: 300px minmax(0, 1fr);
}

.sample-navigation {
    display: flex;
    min-height: 0;
    flex-direction: column;
    padding: 16px 14px;
    border-right: 1px solid var(--line);
    background: #151412;
}

.sample-search {
    display: grid;
    gap: 7px;
    color: var(--muted);
    font-size: 10px;
    font-weight: 800;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.sample-search input {
    width: 100%;
    height: 38px;
    padding: 0 11px;
    color: var(--text);
    border: 1px solid var(--line);
    border-radius: 7px;
    background: var(--surface-raised);
    font-size: 12px;
    letter-spacing: normal;
    text-transform: none;
}

.sample-search input::placeholder {
    color: #827b72;
}

.sample-search input:focus {
    border-color: rgba(246, 195, 68, 0.7);
}

.sample-count {
    padding: 11px 2px 8px;
    color: #777168;
    font: 10px/1 ui-monospace, SFMono-Regular, Consolas, monospace;
    text-transform: uppercase;
}

.sample-list-container {
    overflow: auto;
    min-height: 0;
    padding-right: 3px;
}

.sample-list {
    display: grid;
    align-content: start;
    gap: 4px;
}

.sample-option {
    display: grid;
    gap: 4px;
    width: 100%;
    padding: 11px 12px;
    color: var(--muted);
    border: 1px solid transparent;
    border-radius: 8px;
    background: transparent;
    cursor: pointer;
    text-align: left;
    transition:
        color 180ms cubic-bezier(0.16, 1, 0.3, 1),
        border-color 180ms cubic-bezier(0.16, 1, 0.3, 1),
        background-color 180ms cubic-bezier(0.16, 1, 0.3, 1);
}

.sample-option:hover {
    color: var(--text);
    background: var(--surface-raised);
}

.sample-option.selected {
    color: var(--text);
    border-color: rgba(246, 195, 68, 0.5);
    background: var(--accent-dark);
}

.sample-option-category {
    color: #8f887e;
    font: 800 9px/1.2 ui-monospace, SFMono-Regular, Consolas, monospace;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.sample-option.selected .sample-option-category {
    color: var(--accent);
}

.sample-option strong {
    font-size: 13px;
}

.sample-option > span:last-child {
    font-size: 11px;
    line-height: 1.4;
}

.sample-empty,
.sample-preview-empty {
    display: grid;
    place-content: center;
    gap: 6px;
    min-height: 150px;
    padding: 22px;
    color: var(--muted);
    text-align: center;
}

.sample-empty strong,
.sample-preview-empty strong {
    color: var(--text);
    font-size: 13px;
}

.sample-empty span,
.sample-preview-empty span {
    font-size: 11px;
    line-height: 1.5;
}

.sample-preview {
    display: grid;
    min-width: 0;
    min-height: 0;
    grid-template-rows: auto minmax(0, 1fr) auto;
    background: #171614;
}

.sample-preview-heading {
    display: flex;
    align-items: end;
    justify-content: space-between;
    gap: 28px;
    padding: 20px 22px 17px;
    border-bottom: 1px solid var(--line);
}

.sample-preview-heading h3 {
    margin: 6px 0 5px;
    font-size: 20px;
    letter-spacing: -0.02em;
}

.sample-preview-heading p {
    max-width: 54ch;
    margin: 0;
    color: var(--muted);
    font-size: 12px;
    line-height: 1.5;
}

.sample-metadata {
    display: flex;
    flex: 0 0 auto;
    gap: 12px;
    color: #817a71;
    font: 10px/1 ui-monospace, SFMono-Regular, Consolas, monospace;
    text-transform: uppercase;
}

.sample-preview-code {
    overflow: auto;
    min-height: 0;
    margin: 0;
    padding: 20px 22px;
    color: #eee8dc;
    background: #11110f;
    font: 13px/1.65 ui-monospace, SFMono-Regular, Consolas, monospace;
    tab-size: 4;
}

.sample-preview-code:focus {
    outline: 1px solid rgba(246, 195, 68, 0.45);
    outline-offset: -1px;
}

.sample-dialog-actions {
    display: flex;
    flex-direction: row;
    justify-content: flex-end;
    gap: 8px;
    padding: 12px 16px;
    border-top: 1px solid var(--line);
    background: var(--surface);
}

.editor-shell {
    display: grid;
    grid-template-columns: 48px minmax(0, 1fr);
    height: 520px;
    background: #151412;
}

.editor-gutter {
    overflow: hidden;
    height: 100%;
    margin: 0;
    padding: 18px 8px;
    color: #655f57;
    border-right: 1px solid #292622;
    background: #131210;
    font: 13px/1.7 ui-monospace, SFMono-Regular, Consolas, monospace;
    text-align: right;
    user-select: none;
}

.code-editor {
    width: 100%;
    height: 100%;
    resize: none;
    padding: 18px 20px;
    color: #eee8dc;
    border: 0;
    background: transparent;
    caret-color: var(--accent);
    font: 13px/1.7 ui-monospace, SFMono-Regular, Consolas, monospace;
    tab-size: 4;
    white-space: pre;
}

.code-editor:focus,
.stdin:focus {
    outline: 1px solid rgba(246, 195, 68, 0.45);
    outline-offset: -1px;
}

.editor-status {
    display: flex;
    gap: 18px;
    padding: 9px 16px;
    color: #777168;
    border-top: 1px solid var(--line);
    font: 10px/1 ui-monospace, SFMono-Regular, Consolas, monospace;
    text-transform: uppercase;
}

.editor-status span:last-child {
    margin-left: auto;
    color: var(--blue);
}

.side-column {
    display: grid;
    grid-template-rows: auto minmax(340px, 1fr);
    gap: 14px;
}

.optional-label {
    color: var(--muted);
    font: 10px/1 ui-monospace, SFMono-Regular, Consolas, monospace;
    text-transform: uppercase;
}

.stdin {
    display: block;
    width: 100%;
    min-height: 118px;
    resize: vertical;
    padding: 15px 17px;
    color: var(--text);
    border: 0;
    background: #151412;
    font: 12px/1.6 ui-monospace, SFMono-Regular, Consolas, monospace;
}

.terminal-panel {
    display: flex;
    min-height: 390px;
    flex-direction: column;
    background: #0d0e0d;
}

.terminal-header {
    display: flex;
    min-height: 43px;
    align-items: center;
    gap: 12px;
    padding: 0 14px;
    color: #716d67;
    border-bottom: 1px solid #292a28;
    font: 10px/1 ui-monospace, SFMono-Regular, Consolas, monospace;
    text-transform: uppercase;
    letter-spacing: 0.06em;
}

.terminal-lights {
    display: flex;
    gap: 5px;
}

.terminal-lights span {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: #4b4b47;
}

.terminal-lights span:first-child {
    background: #e5635a;
}

.terminal-lights span:nth-child(2) {
    background: #d6aa38;
}

.terminal-lights span:nth-child(3) {
    background: #5eb77e;
}

.terminal-meta {
    margin-left: auto;
}

.terminal-content {
    overflow: auto;
    min-height: 0;
    flex: 1;
}

.terminal-stream {
    border-bottom: 1px solid #292a28;
}

.terminal-stream:last-child {
    border-bottom: 0;
}

.terminal-stream-label {
    display: block;
    padding: 10px 18px 0;
    color: #716d67;
    font: 10px/1 ui-monospace, SFMono-Regular, Consolas, monospace;
    text-transform: uppercase;
    letter-spacing: 0.06em;
}

.terminal-stream.error .terminal-stream-label {
    color: var(--red);
}

.terminal-output {
    min-height: 0;
    margin: 0;
    padding: 18px;
    color: #c6e7cf;
    font: 12px/1.65 ui-monospace, SFMono-Regular, Consolas, monospace;
    white-space: pre-wrap;
    word-break: break-word;
}

.terminal-stream .terminal-output {
    padding-top: 10px;
}

.terminal-stream.error .terminal-output {
    color: #ffc0bb;
}

.diagnostics-panel {
    margin-top: 14px;
}

.diagnostics-heading {
    display: flex;
    min-height: 72px;
    align-items: center;
    justify-content: space-between;
    padding: 15px 18px;
    border-bottom: 1px solid var(--line);
}

.result-pill {
    padding: 7px 9px;
    border-radius: 5px;
    font: 800 9px/1 ui-monospace, SFMono-Regular, Consolas, monospace;
    letter-spacing: 0.08em;
}

.result-pill.success {
    color: var(--green);
    background: rgba(114, 214, 154, 0.1);
}

.result-pill.failure {
    color: var(--red);
    background: rgba(255, 120, 111, 0.1);
}

.clean-run {
    margin: 0;
    padding: 20px;
    color: var(--green);
    font-size: 13px;
}

.diagnostic-list {
    margin: 0;
    padding: 0;
    list-style: none;
}

.diagnostic-list li {
    display: grid;
    grid-template-columns: 28px minmax(0, 1fr);
    gap: 9px;
    padding: 14px 18px;
    border-bottom: 1px solid var(--line);
}

.diagnostic-list li:last-child {
    border-bottom: 0;
}

.diagnostic-icon {
    display: grid;
    width: 22px;
    height: 22px;
    place-items: center;
    color: #17130a;
    border-radius: 50%;
    background: var(--red);
    font-weight: 900;
}

.diagnostic-list .warning .diagnostic-icon {
    background: var(--accent);
}

.diagnostic-title {
    display: flex;
    gap: 9px;
    align-items: baseline;
    font: 11px/1.3 ui-monospace, SFMono-Regular, Consolas, monospace;
}

.diagnostic-title span {
    color: var(--muted);
}

.diagnostic-list p {
    margin: 4px 0 0;
    color: #c9c2b8;
    font-size: 12px;
    line-height: 1.5;
}

footer {
    display: flex;
    justify-content: space-between;
    gap: 24px;
    padding: 28px 0 40px;
    color: #777168;
    font-size: 11px;
    line-height: 1.6;
}

footer p {
    margin: 0;
}

footer code {
    color: #aaa39a;
}

.loading {
    display: grid;
    min-height: 100vh;
    place-content: center;
    justify-items: center;
    gap: 14px;
    color: var(--muted);
    font-size: 13px;
}

.not-found {
    display: grid;
    min-height: 100vh;
    place-content: center;
    text-align: center;
}

.not-found h1 {
    font-size: 48px;
}

.not-found p {
    color: var(--muted);
}

.not-found a {
    color: var(--accent);
}

#blazor-error-ui {
    position: fixed;
    z-index: 1000;
    right: 20px;
    bottom: 20px;
    display: none;
    padding: 14px 18px;
    color: #1b1210;
    border-radius: 9px;
    background: var(--red);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.35);
    font-size: 13px;
}

#blazor-error-ui .reload {
    margin-left: 8px;
    font-weight: 800;
}

#blazor-error-ui .dismiss {
    margin-left: 10px;
    border: 0;
    background: transparent;
    cursor: pointer;
}

@media (max-width: 1050px) {
    .workspace {
        grid-template-columns: 1fr;
    }

    .side-column {
        grid-template-columns: minmax(280px, 0.7fr) minmax(0, 1.3fr);
        grid-template-rows: minmax(350px, auto);
    }

    .input-panel {
        display: flex;
        flex-direction: column;
    }

    .stdin {
        min-height: 0;
        flex: 1;
    }
}

@media (max-width: 760px) {
    main {
        width: min(100% - 24px, 1500px);
    }

    .site-header {
        min-height: 76px;
    }

    .hero {
        align-items: start;
        flex-direction: column;
        padding: 40px 0 30px;
    }

    .panel-header {
        align-items: start;
        flex-direction: column;
    }

    .toolbar {
        width: 100%;
        flex-wrap: wrap;
    }

    .side-column {
        grid-template-columns: 1fr;
        grid-template-rows: auto minmax(350px, auto);
    }

    .editor-shell {
        grid-template-columns: 39px minmax(0, 1fr);
        height: 430px;
    }

    footer {
        flex-direction: column;
    }

    .sample-dialog {
        width: calc(100vw - 16px);
        height: calc(100dvh - 16px);
    }

    .sample-dialog-header {
        min-height: 74px;
        padding: 14px 16px;
    }

    .sample-dialog-header p {
        display: none;
    }

    .sample-dialog-content {
        grid-template-columns: 1fr;
        grid-template-rows: minmax(190px, 0.72fr) minmax(0, 1.28fr);
    }

    .sample-navigation {
        padding: 12px;
        border-right: 0;
        border-bottom: 1px solid var(--line);
    }

    .sample-list {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .sample-option {
        min-width: 0;
    }

    .sample-option > span:last-child {
        display: none;
    }

    .sample-preview-heading {
        align-items: start;
        flex-direction: column;
        gap: 9px;
        padding: 14px 16px;
    }

    .sample-preview-heading p {
        display: none;
    }

    .sample-preview-code {
        padding: 16px;
        font-size: 12px;
    }
}

@media (max-width: 440px) {
    .sample-browser-trigger {
        flex: 1 1 auto;
    }

    .sample-list {
        grid-template-columns: 1fr;
    }
}

@media (prefers-reduced-motion: reduce) {
    .sample-dialog,
    .sample-option {
        transition: none;
    }
}