@import url('/assets/design-system.css');
/* Match long simulator pages on browsers with space-consuming scrollbars.
   Keep the viewport width stable when Basic/Advanced content changes height. */
html { overflow-y: scroll; }
.workspace { box-sizing: border-box; width: 100%; max-width: 1840px; margin: auto; padding: var(--space-3) var(--space-6); }
/* This shell already has canonical gutters; skip legacy ADG alignment offsets. */
.workspace > .dba-header.dba-header { width: 100%; margin-inline: 0; }
.brand, .utilities, .actions, .setup, .section-heading { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
main { display: grid; gap: 16px; margin-top: 16px; }
.card { padding: 20px; border-color: var(--border); }
.section-heading { justify-content: space-between; margin-bottom: 16px; }
.welcome { display: grid; grid-template-columns: 1fr auto; gap: 32px; background: var(--accent-soft); }
.welcome p { max-width: 620px; margin: 8px 0 16px; }
.welcome ol { margin: 0; padding-left: 22px; }
.welcome li { padding: 4px; font-weight: 600; }
.welcome li span { font-weight: 400; color: var(--muted); margin-left: 10px; }
.welcome { grid-template-columns: minmax(0, 1fr) minmax(280px, 1fr); }
.welcome-modes h3 { margin-top: 0; font-size: 14px; }
.welcome-modes dl { display: grid; grid-template-columns: auto 1fr; gap: 6px 16px; font-size: 12px; margin: 0; }
.welcome-modes dt { font-weight: 650; }
.welcome-modes dd { margin: 0; }
.welcome-modes p { font-size: 12px; line-height: 1.7; margin-bottom: 0; }
.setup-description { flex-basis: 100%; margin: 0; font-size: 12px; line-height: 1.7; }
#scenario-hint { font-size: 12px; line-height: 1.7; }
.commit-progress { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 6px; padding: 0; list-style: none; font-size: 11px; }
.commit-progress li { padding: 8px; border-bottom: 2px solid var(--border); color: var(--muted); }
.commit-progress span { margin-right: 6px; font-family: var(--font-mono); }
.commit-progress [aria-current] { color: var(--accent-text); background: var(--accent-soft); border-color: var(--accent); }
.commit-progress .done { color: var(--success); border-color: var(--success); }
.control-hint { font-size: 12px; line-height: 1.7; margin: 12px 0 0; }
.playback-feedback { padding: 10px 12px; border-left: 3px solid var(--accent); background: var(--accent-soft); color: var(--accent-text); font-size: 12px; line-height: 1.7; }
.recommended:not(:disabled) { outline: 2px solid var(--accent); outline-offset: 2px; }
.recommended:focus-visible { outline-color: var(--focus); outline-width: 3px; }
.guide-panel #stage { color: var(--text); font-size: 14px; font-weight: 650; padding: 0; }
.term-note { font-size: 12px; line-height: 1.7; }
button:not(.button), input, textarea { min-height: 38px; border: 1px solid var(--border); border-radius: var(--radius-control); background: var(--surface); color: var(--text); padding: 8px 12px; font: inherit; }
textarea { display: block; resize: vertical; width: 100%; font-family: var(--font-mono); line-height: 1.7; margin: 12px 0; }
input[type=number] { width: 108px; }
input[type=checkbox] { min-height: 20px; accent-color: var(--accent-text); }
button:hover { border-color: var(--accent); }
.danger { color: var(--danger) !important; }
.setup { justify-content: space-between; }
.segments { display: flex; gap: 4px; padding: 4px; border-radius: var(--radius-control); border: 1px solid var(--border); background: var(--surface); }
.segments button { border-color: transparent; font-weight: 600; }
.segments button[aria-pressed=true] { background: var(--accent-soft); color: var(--accent-text); border-color: var(--accent); }
label { display: flex; gap: 8px; align-items: center; font-size: 12px; color: var(--muted); }
.scenario-label { flex: 1; justify-content: center; }
.mono, code, table, .event-list, .term { font-family: var(--font-mono); }
.sim-grid { display: grid; grid-template-columns: minmax(0, 1fr) 280px; gap: 16px; align-items: start; }
.sim-grid:has(.guide-panel[hidden]) { grid-template-columns: 1fr; }
.guide-panel p { line-height: 1.8; }
.guide-panel .actions { align-items: stretch; flex-direction: column; }
.term-note { border-top: 1px solid var(--border); margin-top: 12px; padding-top: 12px; }
.thread-title { display: flex; justify-content: space-between; gap: 8px; margin: 12px 0; font-size: 11px; font-family: var(--font-mono); color: var(--muted); }
.flow-row { display: grid; grid-template-columns: 1.25fr 20px 1fr 20px 1fr 20px 1.15fr; align-items: stretch; gap: 6px; }
.node { padding: 14px 12px; border: 1px solid var(--border); border-radius: var(--radius-control); background: var(--surface-soft); min-width: 0; }
.node strong { display: block; font-size: 13px; }
.node small { display: block; color: var(--muted); margin-top: 6px; overflow-wrap: anywhere; }
.node .wait { font-family: var(--font-mono); color: var(--accent-text); font-size: 11px; }
.node .wait .status { font-size: 11px !important; color: var(--accent-text); overflow-wrap: anywhere; }
.node.hot { border-color: var(--accent); background: var(--accent-soft); animation: pulse 1s ease-in-out infinite alternate; }
.node.down { border-color: var(--danger); }
.arrow { display: grid; place-items: center; color: var(--muted); font-size: 20px; }
.cache-row { display: flex; gap: 8px; align-items: center; padding: 10px 0; flex-wrap: wrap; color: var(--muted); font-size: 12px; }
.cache-row .block { font: 10px var(--font-mono); padding: 5px; background: var(--accent-soft); color: var(--accent-text); border: 1px solid var(--accent); border-radius: 5px; }
.cache-row .block.clean { background: var(--success-soft); color: var(--success); border-color: var(--success); }
.buffer-track { height: 8px; background: var(--border); overflow: hidden; border-radius: var(--radius-pill); margin-top: 10px; }
.buffer-track span { display: block; height: 100%; background: var(--accent); transition: width .3s; }
.metrics { display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px; margin: 16px 0; }
.metric { padding: 10px; background: var(--surface-soft); border-radius: var(--radius-control); }
.metric span { display: block; font-size: 10px; color: var(--muted); }
.metric b { font: 16px var(--font-mono); }
.actions { margin-top: 12px; }
.pacing { font-size: 11px; margin-top: 10px; }
details { min-width: 0; }
summary { cursor: pointer; font-weight: 600; padding: 6px 0; min-height: 34px; }
details > details { border-top: 1px solid var(--border); padding-top: 8px; margin-top: 8px; }
details p { margin: 12px 0; }
.parameter-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; padding-top: 12px; }
.parameter-grid label { flex-direction: column; align-items: start; }
.parameter-grid input { width: 100%; }
.group-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin: 16px 0; }
.group { border: 1px solid var(--border); border-radius: var(--radius-control); padding: 12px; min-width: 0; }
.group.current { border-color: var(--success); }
.status { min-height: 26px !important; padding: 3px 8px !important; border-radius: var(--radius-pill) !important; font: 10px var(--font-mono) !important; background: var(--surface-soft) !important; }
.status.CURRENT, .status.INACTIVE { background: var(--success-soft) !important; color: var(--success) !important; }
.status.ACTIVE, .status.CLEARING, .status.CLEARING_CURRENT { background: var(--accent-soft) !important; color: var(--accent-text) !important; }
.member-row { margin-top: 8px; padding-top: 8px; border-top: 1px solid var(--border); font-size: 11px; overflow-wrap: anywhere; }
.member-row code { display: block; }
.table-wrap { max-width: 100%; overflow: auto; margin: 12px 0; }
table { border-collapse: collapse; width: 100%; font-size: 11px; text-align: left; }
th, td { padding: 9px; border-bottom: 1px solid var(--border); white-space: nowrap; }
th { background: var(--surface-soft); font-weight: 600; }
caption { text-align: left; padding: 8px 0; color: var(--muted); font-size: 11px; }
.event-list { max-height: 280px; overflow: auto; font-size: 11px; }
.event-row { padding: 7px 0; border-bottom: 1px solid var(--border); display: grid; grid-template-columns: 95px 1fr; gap: 12px; overflow-wrap: anywhere; }
.event-row time { color: var(--muted); }
.notice { color: var(--danger); background: var(--surface); padding: 14px 20px; border: 1px solid var(--danger); border-radius: var(--radius-control); overflow-wrap: anywhere; }
.lifecycle { color: var(--muted); font-size: 12px; }
#sql-examples { display: grid; gap: 6px; }
#sql-examples button { text-align: left; font: 11px var(--font-mono); white-space: normal; overflow-wrap: anywhere; }
.adg-note { display: flex; justify-content: space-between; gap: 16px; padding: 8px; font-size: 12px; color: var(--muted); }
.adg-note a { color: var(--accent-text); white-space: nowrap; }
footer { text-align: center; color: var(--muted); font-size: 11px; padding: 8px 0; }
dialog { width: min(750px, calc(100% - 32px)); max-height: 85vh; overflow: auto; padding: 24px; border: 1px solid var(--border); border-radius: var(--radius-card); background: var(--surface); color: var(--text); }
dialog::backdrop { background: #0006; }
dialog dt { font: 12px var(--font-mono); margin-top: 12px; }
dialog dd { margin: 6px 0; color: var(--muted); }
@keyframes pulse { from { box-shadow: 0 0 0 0 var(--accent-soft); } to { box-shadow: 0 0 0 4px var(--accent-soft); } }
@media(max-width:1100px) { .sim-grid { grid-template-columns: 1fr; } .guide-panel .actions { flex-direction: row; } .parameter-grid { grid-template-columns: repeat(3, 1fr); } }
@media(max-width:760px) { .workspace { padding-inline: var(--space-3); } }
@media(max-width:700px) { .card { padding: 16px; } .welcome { grid-template-columns: 1fr; gap: 12px; } .setup { justify-content: flex-start; } .scenario-label { flex-basis: 100%; justify-content: flex-start; flex-wrap: wrap; } .parameter-grid, .group-grid { grid-template-columns: repeat(2, 1fr); } .flow-row { grid-template-columns: 1fr; gap: 4px; } .node { display: flex; align-items: center; flex-wrap: wrap; gap: 6px 12px; } .node small { margin: 0; } .arrow { font-size: 15px; height: 16px; transform: rotate(90deg); } .node .buffer-track { width: 100%; } .metrics { grid-template-columns: repeat(2, 1fr); } .adg-note { flex-direction: column; } .event-row { grid-template-columns: 80px 1fr; gap: 6px; } }
@media(max-width:400px) { .parameter-grid, .group-grid { grid-template-columns: 1fr; } .segments button { padding: 8px; font-size: 12px; } }
@media(prefers-reduced-motion:reduce) { *, *::before, *::after { animation: none !important; transition: none !important; } }

/* Detail levels change disclosure, never the model or shared shell. */
.welcome { display: block; }
.welcome-modes { margin-top: var(--space-3); }
.welcome-modes summary { font-size: 12px; color: var(--muted); font-weight: 500; }
.welcome-modes dl { margin-top: var(--space-2); }
.guided-controls { display: flex; align-items: center; justify-content: space-between; gap: var(--space-4); padding: var(--space-4); border-radius: var(--radius-control); background: var(--accent-soft); margin: var(--space-4) 0; }
.guided-controls strong { font-size: 14px; }
.guided-controls p { color: var(--muted); font-size: 12px; margin-top: var(--space-1); }
.guided-controls .actions { margin: 0; flex-shrink: 0; max-width: 100%; }
.guided-controls button { white-space: normal; text-align: left; }
.lesson-result { margin-top: var(--space-4); border-top: 1px solid var(--border); padding-top: var(--space-4); }
.lesson-result h3 { margin: var(--space-2) 0; font-size: 16px; }
.lesson-result p { font-size: 12px; line-height: 1.8; }
.lesson-result .metrics { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.lesson-result .metric b { display: block; margin-top: var(--space-1); }
.lesson-list { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: var(--space-2); margin-top: var(--space-3); }
.lesson-list button { text-align: left; }
.lesson-list span, .lesson-list small { display: block; }
.lesson-list span { font-weight: 600; }
.lesson-list small { color: var(--muted); font-size: 11px; margin-top: var(--space-1); }
.lesson-list [aria-pressed=true] { border-color: var(--accent); background: var(--accent-soft); }
.level-invitation { display: flex; align-items: center; gap: var(--space-2); font-size: 12px; color: var(--muted); margin-top: var(--space-4); flex-wrap: wrap; }
.level-invitation button { font-size: 12px; }
.node.written { border-color: var(--success); background: var(--success-soft); }
.node strong .status { font-size: 13px !important; font-weight: 600 !important; }
[data-level=basic] .sim-grid { grid-template-columns: 1fr; }
[data-level=basic] #explanation-slot .guide-panel { padding: var(--space-3) 0 0; border: 0; border-top: 1px solid var(--border); box-shadow: none; border-radius: 0; margin-top: var(--space-2); }
[data-level=basic] #explanation-slot .section-heading { margin-bottom: var(--space-1); }
[data-level=basic] #explanation-slot #stage { display: none; }
[data-level=basic] #explanation-slot #guide-copy { margin: 0; font-size: 12px; }
[data-level=basic] .flow-row { grid-template-columns: 1fr 20px 1fr 20px 1fr 20px 1fr; }
[data-level=basic] .setup-description { font-size: 11px; }
[data-level=basic] .node { padding: var(--space-4); }
[data-level=basic] .cache-row { font-size: 11px; }
@media(max-width:1100px) { .guided-controls { align-items: flex-start; flex-direction: column; gap: var(--space-3); } }
@media(max-width:700px) { [data-level=basic] .flow-row { grid-template-columns: 1fr; } .arrow { width: 16px; justify-self: center; } [data-level=basic] .node { padding: var(--space-3); } .lesson-list { grid-template-columns: repeat(2, minmax(0, 1fr)); } .guided-controls { padding: var(--space-3); } .guided-controls .actions, .guided-controls button { width: 100%; } }
@media(max-width:400px) { .lesson-list { grid-template-columns: 1fr; } .guided-controls p { font-size: 11px; } }