:root {
    --ink: var(--raven-ink);
    --muted: var(--raven-muted);
    --surface: var(--raven-surface);
    --surface-raised: var(--raven-surface-raised);
    --line: var(--raven-line);
    --accent: var(--raven-accent);
    --danger: var(--raven-danger);
}

* { box-sizing: border-box; }

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

body {
    margin: 0;
    background:
        radial-gradient(circle at 12% 0%, color-mix(in srgb, var(--raven-accent) 9%, transparent), transparent 32rem),
        var(--raven-bg);
    color: var(--ink);
    font-family: var(--raven-font-sans);
}

button { font: inherit; }

.playground-shell {
    width: min(1500px, 100%);
    min-height: 100vh;
    margin: 0 auto;
    padding: 20px clamp(18px, 4vw, 64px) 16px;
}

.hero {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    margin-bottom: 16px;
}

.hero-copy {
    display: grid;
    grid-template-columns: auto minmax(0, 1fr);
    column-gap: 14px;
    align-items: center;
}

.hero-copy .raven-brand {
    grid-row: 1 / span 3;
    margin: 0;
}

.hero-copy .raven-brand-mark {
    width: 2.25rem;
    height: 2.25rem;
    border-radius: 0.68rem;
}

.hero-copy .eyebrow,
.hero-copy h1,
.hero-copy .lede {
    grid-column: 2;
}

.hero-tools {
    display: flex;
    align-items: end;
    gap: 0.75rem;
}

.theme-picker {
    display: grid;
    gap: 0.25rem;
    color: var(--muted);
    font-size: 0.68rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.theme-picker select {
    min-height: 2.25rem;
    border: 1px solid var(--line);
    border-radius: 999px;
    padding: 0 1.8rem 0 0.75rem;
    background: var(--surface);
    color: var(--ink);
    font: 0.75rem var(--raven-font-sans);
}

.eyebrow, .panel-kicker {
    margin: 0 0 4px;
    color: var(--accent);
    font-size: 11px;
    font-weight: 750;
    letter-spacing: .14em;
    text-transform: uppercase;
}

h1 {
    margin: 0;
    font-size: clamp(28px, 3vw, 40px);
    font-weight: 650;
    line-height: 1.05;
    letter-spacing: -.045em;
}

.lede {
    max-width: 620px;
    margin: 5px 0 0;
    color: var(--muted);
    font-size: 14px;
    line-height: 1.5;
}

.runtime-badge, .status-pill {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    border: 1px solid var(--line);
    border-radius: 999px;
    padding: 8px 11px;
    color: var(--muted);
    font-size: 12px;
    white-space: nowrap;
}

.status-dot {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: var(--accent);
    box-shadow: 0 0 12px color-mix(in srgb, var(--accent) 70%, transparent);
}

.workspace {
    display: grid;
    grid-template-columns: minmax(0, 1.65fr) minmax(320px, .8fr);
    height: clamp(500px, calc(100dvh - 170px), 820px);
    min-height: 500px;
    border: 1px solid var(--line);
    border-radius: var(--raven-radius);
    overflow: visible;
    background: var(--surface);
    box-shadow: var(--raven-shadow);
}

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

.editor-panel {
    display: flex;
    flex-direction: column;
    position: relative;
    overflow: visible;
    border-right: 1px solid var(--line);
}

.panel-header {
    min-height: 76px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    padding: 14px 18px;
    border-bottom: 1px solid var(--line);
    background: var(--surface-raised);
}

.panel-header h2 {
    margin: 0;
    font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
    font-size: 14px;
    font-weight: 550;
}

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

.example-picker {
    position: relative;
    display: grid;
    gap: 4px;
    margin-left: auto;
    z-index: 20;
}

.example-picker-label {
    color: var(--muted);
    font-size: 10px;
    letter-spacing: .08em;
    text-transform: uppercase;
}

.example-picker-trigger {
    position: relative;
    z-index: 2;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    width: clamp(180px, 18vw, 250px);
    height: 38px;
    border: 1px solid var(--line);
    border-radius: 7px;
    padding: 0 10px 0 12px;
    background: var(--raven-surface);
    color: var(--ink);
    font: 12px ui-sans-serif, system-ui, sans-serif;
    text-align: left;
    text-transform: none;
    cursor: pointer;
}

.example-picker-trigger > span {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.example-picker-trigger svg {
    width: 14px;
    flex: 0 0 auto;
    fill: none;
    stroke: currentColor;
    stroke-linecap: round;
    stroke-linejoin: round;
    stroke-width: 1.5;
    transition: transform 120ms ease;
}

.example-picker-trigger[aria-expanded="true"] {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--raven-accent-soft);
}

.example-picker-trigger[aria-expanded="true"] svg { transform: rotate(180deg); }
.example-picker-trigger:disabled { cursor: wait; opacity: .65; }

.example-picker-backdrop {
    position: fixed;
    inset: 0;
    z-index: 1;
}

.example-picker-popover {
    position: absolute;
    top: calc(100% + 8px);
    right: 0;
    z-index: 2;
    width: min(360px, calc(100vw - 28px));
    overflow: hidden;
    border: 1px solid var(--line);
    border-radius: 11px;
    background: var(--surface-raised);
    box-shadow: 0 18px 48px color-mix(in srgb, var(--raven-ink) 18%, transparent);
    color: var(--ink);
    text-align: left;
    text-transform: none;
}

.example-search {
    position: relative;
    display: flex;
    align-items: center;
    margin: 10px;
}

.example-search > svg {
    position: absolute;
    left: 11px;
    width: 15px;
    fill: none;
    stroke: var(--muted);
    stroke-linecap: round;
    stroke-width: 1.4;
    pointer-events: none;
}

.example-search input {
    width: 100%;
    height: 38px;
    border: 1px solid var(--line);
    border-radius: 7px;
    outline: none;
    padding: 0 34px;
    background: var(--surface);
    color: var(--ink);
    font: 12px var(--raven-font-sans);
}

.example-search input:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--raven-accent-soft);
}

.example-search input::placeholder { color: var(--muted); }

.example-search-clear {
    position: absolute;
    right: 5px;
    width: 28px;
    height: 28px;
    border: 0;
    border-radius: 5px;
    background: transparent;
    color: var(--muted);
    cursor: pointer;
    font-size: 18px;
    line-height: 1;
}

.example-search-clear:hover { background: var(--raven-accent-soft); color: var(--ink); }

.example-options {
    max-height: min(420px, calc(100vh - 220px));
    overflow-y: auto;
    padding: 1px 7px 8px;
    scrollbar-color: var(--line) transparent;
}

.example-group h3 {
    margin: 12px 9px 5px;
    color: var(--muted);
    font-size: 9px;
    font-weight: 750;
    letter-spacing: .12em;
    text-transform: uppercase;
}

.example-option {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    width: 100%;
    min-height: 36px;
    border: 0;
    border-radius: 6px;
    padding: 7px 9px;
    background: transparent;
    color: var(--ink);
    cursor: pointer;
    font: 12px/1.35 var(--raven-font-sans);
    text-align: left;
}

.example-option:hover,
.example-option:focus-visible {
    outline: none;
    background: var(--raven-accent-soft);
}

.example-option[aria-selected="true"] {
    color: var(--accent);
    font-weight: 680;
}

.example-option svg {
    width: 15px;
    flex: 0 0 auto;
    fill: none;
    stroke: currentColor;
    stroke-linecap: round;
    stroke-linejoin: round;
    stroke-width: 1.7;
}

.example-empty {
    margin: 24px 12px;
    color: var(--muted);
    font-size: 12px;
    text-align: center;
}

.example-picker-hint {
    margin: 0;
    border-top: 1px solid var(--line);
    padding: 8px 12px;
    color: var(--muted);
    font-size: 10px;
    text-align: right;
}

.actions button {
    min-height: 38px;
    border-radius: 7px;
    padding: 0 14px;
    cursor: pointer;
    font-weight: 680;
}

.actions button:disabled { cursor: wait; opacity: .65; }

.compile-button {
    border: 1px solid var(--line);
    background: transparent;
    color: var(--ink);
}

.run-button {
    border: 1px solid var(--accent);
    background: var(--accent);
    color: #fff;
}

.share-button {
    border: 1px solid var(--line);
    background: var(--raven-accent-soft);
    color: var(--ink);
}

.share-status {
    align-self: center;
    min-width: 58px;
    color: var(--muted);
    font-size: 11px;
}

kbd {
    margin-left: 6px;
    color: inherit;
    font-family: ui-monospace, monospace;
    font-size: 10px;
    opacity: .65;
}

.source-editor {
    flex: 1;
    min-height: 0;
    overflow: hidden;
}

.output-panel {
    display: flex;
    flex-direction: column;
    background: var(--raven-code-bg);
}

.program-output {
    flex: 1;
    min-height: 0;
    margin: 0;
    padding: 22px;
    overflow: auto;
    color: var(--ink);
    font: 13px/1.65 var(--raven-font-mono);
    white-space: pre-wrap;
}

.status-success { border-color: var(--raven-success); color: var(--raven-success); }
.status-error { border-color: var(--danger); color: var(--danger); }
.status-active { border-color: var(--raven-accent); color: var(--ink); }

.diagnostics {
    max-height: 45%;
    padding: 16px 20px;
    overflow: auto;
    border-top: 1px solid color-mix(in srgb, var(--danger) 45%, var(--line));
    background: color-mix(in srgb, var(--danger) 10%, var(--surface));
    color: var(--danger);
}

.diagnostics h3 { margin: 0 0 10px; font-size: 12px; text-transform: uppercase; }
.diagnostics ul { margin: 0; padding-left: 20px; font: 12px/1.55 ui-monospace, monospace; }

.playground-footer {
    display: flex;
    justify-content: space-between;
    gap: 10px;
    padding-top: 16px;
    color: var(--muted);
    font-size: 12px;
}

.playground-links, .playground-features {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.playground-links a {
    color: var(--muted);
    text-underline-offset: 3px;
}

.playground-links a:hover, .playground-links a:focus-visible {
    color: var(--accent);
}

.loading-shell {
    min-height: 100vh;
    display: grid;
    place-content: center;
    justify-items: center;
    gap: 16px;
    color: var(--muted);
}

.loading-mark {
    display: grid;
    width: 54px;
    height: 54px;
    place-items: center;
    border: 1px solid var(--accent);
    border-radius: 12px;
    color: var(--accent);
    font: 700 26px ui-monospace, monospace;
}

#blazor-error-ui {
    display: none;
    position: fixed;
    inset: auto 0 0;
    z-index: 1000;
    padding: 12px 48px 12px 18px;
    background: #742b27;
    color: white;
}

#blazor-error-ui .dismiss { position: absolute; right: 16px; cursor: pointer; }

@media (max-width: 880px) {
    .hero { align-items: flex-start; flex-direction: column; }
    .hero-tools { width: 100%; justify-content: space-between; }
    .workspace {
        grid-template-columns: 1fr;
        height: auto;
        min-height: 0;
    }
    .editor-panel { border-right: 0; border-bottom: 1px solid var(--line); }
    .source-editor {
        flex: none;
        height: 520px;
        min-height: 520px;
    }
    .output-panel { min-height: 360px; }
    .playground-footer { flex-direction: column; }
}

@media (max-width: 560px) {
    .playground-shell { padding-inline: 10px; }
    .panel-header { align-items: flex-start; flex-direction: column; }
    .actions { width: 100%; }
    .actions button { flex: 1; }
    .example-picker { width: 100%; margin-left: 0; }
    .example-picker-trigger { width: 100%; }
    .example-picker-popover { right: auto; left: 0; }
}