:root {
  --ink: #0b0f0e;
  --paper: #f2f4ed;
  --panel: #ffffff;
  --lime: #b8f26a;
  --cyan: #63d9e6;
  --muted: #6f7772;
  --line: rgba(11, 15, 14, 0.14);
  --danger: #ff8c63;
  --shadow: 0 22px 58px rgba(11, 15, 14, 0.1);
}

* { box-sizing: border-box; }
html { min-width: 320px; background: var(--paper); }
body { margin: 0; color: var(--ink); background: var(--paper); font-family: Inter, "Noto Sans SC", "Microsoft YaHei", sans-serif; }
button, input, select, textarea { font: inherit; }
button, summary, select, input[type="file"] { cursor: pointer; }
a { color: inherit; text-decoration: none; }

.workbench-shell { min-height: 100vh; display: grid; grid-template-columns: 260px minmax(0, 1fr); }
.sidebar { min-height: 100vh; position: sticky; top: 0; align-self: start; display: flex; flex-direction: column; padding: 28px 22px 22px; color: #fff; background: var(--ink); }
.brand-block { display: flex; align-items: center; justify-content: space-between; gap: 14px; }
.brand { display: inline-flex; align-items: center; gap: 10px; font-size: 19px; font-weight: 900; letter-spacing: -.04em; }
.brand-mark { width: 18px; height: 18px; border: 5px solid #fff; border-right-color: var(--lime); border-radius: 50%; }
.service-state { display: flex; align-items: center; gap: 7px; color: #9aa49e; font-size: 10px; font-weight: 800; }
.service-state i { width: 7px; height: 7px; border-radius: 50%; background: #8a938e; }
.service-state.online i { background: #7fbd2e; box-shadow: 0 0 0 4px rgba(184, 242, 106, .1); }
.service-state.offline i { background: var(--danger); }

.mode-tabs { display: grid; gap: 6px; margin-top: 62px; }
.mode-tabs button { width: 100%; display: grid; grid-template-columns: 38px 1fr; align-items: center; padding: 13px 12px; color: #9ca6a0; border: 0; background: transparent; text-align: left; transition: .18s ease; }
.mode-tabs button:hover { color: #fff; background: rgba(255, 255, 255, .055); }
.mode-tabs button.active { color: var(--ink); background: var(--lime); }
.mode-tabs b { font: 700 9px/1 ui-monospace, Consolas, monospace; opacity: .62; }
.mode-tabs span { font-size: 13px; font-weight: 800; }

.model-details { margin-top: 36px; border-top: 1px solid #303734; }
.model-details > summary { padding: 16px 4px; color: #c9d0cc; font-size: 11px; font-weight: 800; list-style: none; }
.model-details > summary::after { content: "+"; float: right; color: var(--lime); }
.model-details[open] > summary::after { content: "−"; }
.model-status { display: grid; gap: 8px; padding-bottom: 12px; }
.model-chip { padding: 10px; border: 1px solid #313936; background: #121715; }
.model-chip strong, .model-chip span, .model-chip small { display: block; }
.model-chip strong { color: #fff; font-size: 10px; }
.model-chip span { margin-top: 5px; color: #a8b1ac; font-size: 9px; }
.model-chip small { margin-top: 7px; color: #77817b; font-size: 8px; line-height: 1.45; }
.model-chip.ready { border-left: 3px solid var(--lime); }
.model-chip:not(.ready) { border-left: 3px solid var(--danger); }
.sidebar-foot { margin-top: auto; padding-top: 24px; display: flex; justify-content: space-between; color: #737d77; font: 700 9px/1 ui-monospace, Consolas, monospace; }

.workspace { min-width: 0; padding: clamp(26px, 4vw, 62px); }
.workspace-head { min-height: 100px; display: flex; align-items: end; justify-content: space-between; gap: 24px; padding-bottom: 24px; border-bottom: 1px solid var(--line); }
.eyebrow { margin: 0 0 10px; color: var(--muted); font: 700 10px/1 ui-monospace, Consolas, monospace; letter-spacing: .16em; }
.workspace-head h1 { margin: 0; font-size: clamp(34px, 5vw, 68px); line-height: .95; letter-spacing: -.065em; }
.status-line { max-width: 340px; text-align: right; }
.status-line strong, .status-line span { display: block; }
.status-line strong { font-size: 12px; }
.status-line span { margin-top: 6px; color: var(--muted); font-size: 10px; }

.workspace-grid { display: grid; grid-template-columns: minmax(360px, .86fr) minmax(430px, 1.14fr); gap: 22px; margin-top: 28px; align-items: start; }
.input-card, .result-card { min-width: 0; background: var(--panel); border: 1px solid var(--line); box-shadow: var(--shadow); }
.card-head { height: 48px; display: flex; align-items: center; justify-content: space-between; padding: 0 20px; border-bottom: 1px solid var(--line); font-size: 11px; font-weight: 900; }
.card-head small { color: var(--muted); font: 700 9px/1 ui-monospace, Consolas, monospace; letter-spacing: .12em; }
.card-head.dark { color: #fff; border-bottom-color: #2d3431; background: var(--ink); }
.card-head.dark small { color: var(--lime); }

.mode-panel { display: none; padding: 24px; }
.mode-panel.active { display: block; }
.panel-intro { display: flex; align-items: baseline; justify-content: space-between; gap: 16px; margin-bottom: 22px; }
.panel-intro h2 { margin: 0; font-size: 20px; letter-spacing: -.035em; }
.panel-intro p { margin: 0; color: var(--muted); font-size: 10px; }
label { display: block; color: #4e5752; font-size: 11px; font-weight: 750; }
input, select, textarea { width: 100%; margin-top: 7px; padding: 10px 11px; color: var(--ink); border: 1px solid #ccd3ce; border-radius: 0; outline: none; background: #fbfcf9; }
input:focus, select:focus, textarea:focus { border-color: #6e9e31; box-shadow: 0 0 0 3px rgba(184, 242, 106, .24); }
textarea { min-height: 112px; resize: vertical; line-height: 1.45; font-family: ui-monospace, Consolas, monospace; }
.grid { display: grid; gap: 12px; margin: 14px 0; }
.grid.two { grid-template-columns: 1fr 1fr; }
.grid.three { grid-template-columns: repeat(3, 1fr); }
.field-stack { display: grid; gap: 15px; margin-top: 14px; }
.field-stack fieldset { margin: 0; padding: 14px; border: 1px solid var(--line); }
.field-stack legend { padding: 0 7px; font-size: 10px; font-weight: 900; }
.field-stack .field-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 11px; }
.table-editor { overflow-x: auto; margin-top: 18px; }
.edit-table, .table-wrap table { width: 100%; border-collapse: collapse; }
.edit-table th { padding: 8px 6px; color: var(--muted); border-bottom: 1px solid var(--line); font-size: 9px; text-align: left; white-space: nowrap; }
.edit-table td { padding: 5px 3px; }
.edit-table input { min-width: 70px; margin: 0; padding: 8px; }
.edit-table button { width: 30px; height: 34px; border: 1px solid #ccd3ce; background: #fff; }
.secondary-tools { margin-top: 18px; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.secondary-tools > summary { padding: 13px 0; color: #58615c; font-size: 10px; font-weight: 800; }
.what-if-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; padding-bottom: 16px; }
.file-field { margin: 16px 0; padding: 16px; border: 1px dashed #aeb8b1; background: #f6f8f3; }
.actions { display: flex; align-items: center; justify-content: flex-end; flex-wrap: wrap; gap: 8px; margin-top: 22px; }
.actions button { min-height: 39px; padding: 0 15px; border: 1px solid var(--ink); font-size: 11px; font-weight: 900; }
.quiet-action { color: var(--ink); background: #fff; }
.primary-action { min-width: 132px; color: #fff; background: var(--ink); }
.primary-action span { margin-left: 18px; color: var(--lime); }
.primary-action:hover { color: var(--lime); }

.result-card { min-height: 610px; color: #fff; background: var(--ink); box-shadow: 18px 18px 0 var(--lime); }
.primary-result { min-height: 270px; padding: 34px 34px 28px; display: flex; flex-direction: column; border-bottom: 1px solid #303734; }
.primary-result > span { color: var(--lime); font: 800 10px/1 ui-monospace, Consolas, monospace; letter-spacing: .12em; }
.primary-result strong { margin-top: auto; font-size: clamp(70px, 9vw, 126px); line-height: .82; letter-spacing: -.085em; }
.primary-result small { margin-top: 10px; color: #a7b0ab; font-size: 13px; }
.primary-result p { margin: 18px 0 0; color: #89938d; font-size: 11px; }
.messages { padding: 0 28px; }
.message { margin-top: 16px; padding: 11px 13px; border-left: 3px solid var(--cyan); color: #dce2de; background: #171d1a; font-size: 11px; line-height: 1.5; }
.message.error { border-left-color: var(--danger); }
.result-summary { margin: 0; padding: 24px 28px; color: #c3cbc6; white-space: pre-wrap; font: 500 11px/1.65 ui-monospace, Consolas, monospace; }
.result-details { border-top: 1px solid #303734; }
.result-details > summary { padding: 16px 28px; color: #aab3ae; font-size: 10px; font-weight: 900; list-style: none; }
.result-details > summary::after { content: "+"; float: right; color: var(--lime); }
.result-details[open] > summary::after { content: "−"; }
.metric-grid { display: grid; grid-template-columns: repeat(2, 1fr); padding: 0 28px 22px; }
.metric { min-width: 0; padding: 12px 0; border-bottom: 1px solid #303734; }
.metric:nth-child(odd) { padding-right: 12px; }
.metric:nth-child(even) { padding-left: 12px; border-left: 1px solid #303734; }
.metric span, .metric strong { display: block; }
.metric span { color: #7f8983; font-size: 9px; }
.metric strong { margin-top: 5px; overflow-wrap: anywhere; font-size: 13px; }
.table-wrap { max-height: 350px; overflow: auto; margin: 0 28px 26px; border: 1px solid #303734; }
.table-wrap th, .table-wrap td { padding: 9px; border-bottom: 1px solid #303734; border-right: 1px solid #303734; font-size: 9px; text-align: left; white-space: nowrap; }
.table-wrap th { position: sticky; top: 0; color: var(--lime); background: #171d1a; }
.table-wrap td { color: #c1c9c4; }

@media (max-width: 1100px) {
  .workbench-shell { grid-template-columns: 220px minmax(0, 1fr); }
  .workspace-grid { grid-template-columns: 1fr; }
  .result-card { min-height: 520px; }
}

@media (max-width: 760px) {
  .workbench-shell { display: block; }
  .sidebar { min-height: auto; position: static; padding: 18px 16px 12px; }
  .mode-tabs { grid-template-columns: repeat(5, minmax(108px, 1fr)); gap: 5px; margin-top: 22px; overflow-x: auto; padding-bottom: 5px; }
  .mode-tabs button { grid-template-columns: 24px 1fr; padding: 11px 9px; }
  .model-details { margin-top: 12px; }
  .sidebar-foot { display: none; }
  .workspace { padding: 22px 14px 42px; }
  .workspace-head { min-height: 88px; align-items: start; }
  .workspace-head h1 { font-size: 40px; }
  .status-line { max-width: 130px; padding-top: 3px; }
  .workspace-grid { display: block; margin-top: 18px; }
  .result-card { margin-top: 18px; box-shadow: 9px 9px 0 var(--lime); }
  .grid.three { grid-template-columns: 1fr; }
}

@media (max-width: 520px) {
  .brand-block { align-items: flex-start; }
  .workspace-head { display: block; }
  .status-line { max-width: none; margin-top: 14px; text-align: left; }
  .grid.two, .field-stack .field-grid, .what-if-grid { grid-template-columns: 1fr; }
  .mode-panel { padding: 20px 16px; }
  .panel-intro { display: block; }
  .panel-intro p { margin-top: 6px; }
  .actions { justify-content: stretch; }
  .actions button { flex: 1 1 auto; }
  .primary-result { min-height: 235px; padding: 28px 22px 24px; }
  .metric-grid { grid-template-columns: 1fr; padding-inline: 22px; }
  .metric:nth-child(even) { padding-left: 0; border-left: 0; }
  .result-summary, .result-details > summary { padding-inline: 22px; }
  .table-wrap { margin-inline: 22px; }
}