/*
 * AI Center prototype.
 *
 * Layout: a top bar, a fixed navigation rail on the left, and one content
 * column; the chat screen alone uses the full width as three panes.
 *
 * Every colour is a token on :root and is redefined for dark mode. No inline
 * styles and no external fonts: the page's CSP allows only its own origin.
 */

:root {
  --bg: #f4f6f4;
  --surface: #ffffff;
  --surface-2: #eef2ef;
  --ink: #17211d;
  --ink-2: #4b5a54;
  --ink-3: #74837d;
  --line: #d8dfdb;
  --brand: #1f5f4a;
  --brand-ink: #ffffff;
  --brand-soft: #e1efe8;
  --accent: #b9831c;
  --ok: #217a4d;
  --ok-soft: #e0f2e8;
  --info: #2c5f97;
  --info-soft: #e2ebf6;
  --warn: #9a5b00;
  --warn-soft: #fbefd9;
  --risk: #b0362c;
  --risk-soft: #f9e2df;
  --focus: #2c7be5;
  --p-anthropic: #c8734f;
  --p-openai: #4b5563;
  --p-google: #3b6fd6;
  --p-deepseek: #5b4bd1;
  --p-openrouter: #a8791a;
  --shadow: 0 1px 2px rgb(16 32 26 / 6%), 0 4px 16px rgb(16 32 26 / 6%);
  --radius: 10px;
  --radius-sm: 6px;
  --font: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --mono: ui-monospace, "SFMono-Regular", "Cascadia Mono", Menlo, Consolas, monospace;
  --topbar: 56px;
  --rail: 236px;
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f1513;
    --surface: #161e1b;
    --surface-2: #1c2622;
    --ink: #e3ebe7;
    --ink-2: #a9b8b1;
    --ink-3: #7f8f88;
    --line: #2a3632;
    --brand: #4fb48f;
    --brand-ink: #0b1411;
    --brand-soft: #173229;
    --accent: #e6b450;
    --ok: #5fcf93;
    --ok-soft: #143426;
    --info: #86b4e6;
    --info-soft: #172739;
    --warn: #e9b05a;
    --warn-soft: #33270f;
    --risk: #f08b80;
    --risk-soft: #3a1c19;
    --focus: #7cb3ff;
    --p-anthropic: #e39a78;
    --p-openai: #b7c0cc;
    --p-google: #85a8f0;
    --p-deepseek: #a79cf2;
    --p-openrouter: #e0b452;
    --shadow: 0 1px 2px rgb(0 0 0 / 30%), 0 4px 16px rgb(0 0 0 / 25%);
    color-scheme: dark;
  }
}

*, *::before, *::after { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 15px/1.55 var(--font);
}

a { color: var(--brand); text-underline-offset: 2px; }
code, .rule { font-family: var(--mono); font-size: 0.86em; }
h1, h2, h3 { line-height: 1.25; text-wrap: balance; }
p { margin: 0 0 0.6em; }
p:last-child { margin-bottom: 0; }

:focus-visible { outline: 2px solid var(--focus); outline-offset: 2px; border-radius: 4px; }

.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;
}

.skip-link {
  position: absolute; left: 12px; top: -48px; z-index: 50;
  background: var(--brand); color: var(--brand-ink); padding: 8px 12px; border-radius: var(--radius-sm);
}
.skip-link:focus { top: 8px; }

.num { font-variant-numeric: tabular-nums; }
.muted { color: var(--ink-2); }
.small { font-size: 0.86em; }
.strong { font-weight: 600; }
.spacer { flex: 1; }
.warn-text { color: var(--warn); }

/* --- Top bar ------------------------------------------------------------- */

.topbar {
  position: sticky; top: 0; z-index: 20;
  display: flex; align-items: center; gap: 14px;
  height: var(--topbar);
  padding: 0 max(16px, env(safe-area-inset-right, 0px)) 0 max(16px, env(safe-area-inset-left, 0px));
  background: var(--surface);
  border-bottom: 1px solid var(--line);
}

.brand { display: flex; align-items: center; gap: 8px; color: var(--ink); text-decoration: none; font-weight: 700; }
.brand-mark {
  display: grid; place-items: center; width: 30px; height: 30px; border-radius: 8px;
  background: var(--brand); color: var(--brand-ink); font-size: 18px;
}
.brand-name { font-size: 16px; letter-spacing: 0.01em; }

.workspace { color: var(--ink-2); font-size: 14px; padding-left: 14px; border-left: 1px solid var(--line); }

.prototype-badge {
  font-size: 12px; font-weight: 600; letter-spacing: 0.02em;
  color: var(--warn); background: var(--warn-soft);
  padding: 3px 9px; border-radius: 999px; white-space: nowrap;
}

.budget-pill {
  display: grid; grid-template-columns: auto auto; column-gap: 10px; row-gap: 3px; align-items: center;
  min-width: 190px; padding: 6px 12px; border: 1px solid var(--line); border-radius: var(--radius-sm);
  background: var(--surface-2);
}
.budget-label { font-size: 12px; color: var(--ink-2); }
.budget-value { font-size: 13px; font-weight: 600; text-align: right; }
.budget-pill .meter { grid-column: 1 / -1; }

.avatar {
  display: inline-grid; place-items: center; width: 34px; height: 34px; border-radius: 50%;
  background: var(--brand-soft); color: var(--brand); font-weight: 700; font-size: 13px; flex: none;
}
.avatar.small { width: 26px; height: 26px; font-size: 11px; vertical-align: middle; }

.nav-toggle { display: none; }

/* --- Layout and navigation ----------------------------------------------- */

.layout { display: grid; grid-template-columns: var(--rail) minmax(0, 1fr); min-height: calc(100vh - var(--topbar)); }

.nav {
  position: sticky; top: var(--topbar); align-self: start;
  height: calc(100vh - var(--topbar)); overflow-y: auto;
  padding: 16px 12px 24px; border-right: 1px solid var(--line); background: var(--surface);
}
.nav ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 2px; }
.nav a {
  display: flex; align-items: center; gap: 10px; padding: 8px 10px; border-radius: var(--radius-sm);
  color: var(--ink-2); text-decoration: none; font-size: 14px;
}
.nav a:hover { background: var(--surface-2); color: var(--ink); }
.nav a[aria-current="page"] { background: var(--brand-soft); color: var(--brand); font-weight: 600; }
.nav-icon { width: 18px; text-align: center; font-size: 15px; }
.nav-group {
  margin: 18px 10px 6px; font-size: 11px; font-weight: 600; letter-spacing: 0.08em;
  text-transform: uppercase; color: var(--ink-3);
}

.view {
  min-width: 0;
  padding: 28px max(16px, env(safe-area-inset-right, 0px)) 64px 32px;
  outline: none;
}
.view > * { max-width: 1240px; }
.view[data-screen="sohbet"] { padding: 0; }
.view[data-screen="sohbet"] > * { max-width: none; }

/* --- Building blocks ----------------------------------------------------- */

.stack { display: grid; gap: 20px; }
.grid-2 { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 20px; }
.split { display: grid; grid-template-columns: 280px minmax(0, 1fr); gap: 20px; align-items: start; }

.page-header { display: flex; flex-wrap: wrap; align-items: flex-end; justify-content: space-between; gap: 12px 24px; }
.page-heading { min-width: 0; flex: 1 1 420px; }
.page-header h1 { margin: 0 0 4px; font-size: 26px; letter-spacing: -0.01em; }
.page-actions { display: flex; flex-wrap: wrap; gap: 8px; }
.lede { color: var(--ink-2); max-width: 70ch; margin: 0; }
.back { font-size: 14px; text-decoration: none; }

.card {
  min-width: 0;
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 18px 20px;
}
.card-title { margin: 0 0 12px; font-size: 15px; font-weight: 650; }
.row-between { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.row-between .card-title { margin: 0; }

.kpis { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 14px; }
.kpi {
  display: grid; gap: 6px; align-content: start;
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 14px 16px;
}
.kpi-label { font-size: 12px; font-weight: 600; letter-spacing: 0.04em; text-transform: uppercase; color: var(--ink-3); }
.kpi-value { font-size: 22px; font-weight: 650; }
.kpi-sub { font-size: 13px; }

.btn {
  display: inline-flex; align-items: center; gap: 6px;
  min-height: 36px; padding: 0 14px; border-radius: var(--radius-sm);
  border: 1px solid var(--line); background: var(--surface); color: var(--ink);
  font: inherit; font-size: 14px; font-weight: 550; cursor: pointer; text-decoration: none; white-space: nowrap;
}
.btn:hover { background: var(--surface-2); }
.btn-primary { background: var(--brand); border-color: var(--brand); color: var(--brand-ink); }
.btn-primary:hover { background: var(--brand); filter: brightness(1.08); }
.btn-ghost { border-color: transparent; background: transparent; color: var(--ink-2); }
.btn-icon { font-size: 13px; }

.icon-btn {
  display: inline-grid; place-items: center; width: 34px; height: 34px;
  border: 1px solid var(--line); border-radius: var(--radius-sm);
  background: var(--surface); color: var(--ink); font: inherit; cursor: pointer;
}
.icon-btn.small { width: 22px; height: 22px; font-size: 11px; border-color: transparent; background: transparent; }

.chip {
  display: inline-block; padding: 1px 8px; border-radius: 999px;
  font-size: 12px; font-weight: 600; white-space: nowrap; vertical-align: middle;
  background: var(--surface-2); color: var(--ink-2);
}
.chip-ok { background: var(--ok-soft); color: var(--ok); }
.chip-info { background: var(--info-soft); color: var(--info); }
.chip-warn { background: var(--warn-soft); color: var(--warn); }
.chip-risk { background: var(--risk-soft); color: var(--risk); }

.model-chip {
  display: inline-flex; align-items: center; gap: 6px; padding: 2px 9px 2px 7px;
  border: 1px solid var(--line); border-radius: 999px; background: var(--surface);
  font-size: 12.5px; font-weight: 600; white-space: nowrap; vertical-align: middle;
}
.model-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--ink-3); }
.provider-anthropic .model-dot { background: var(--p-anthropic); }
.provider-openai .model-dot { background: var(--p-openai); }
.provider-google .model-dot { background: var(--p-google); }
.provider-deepseek .model-dot { background: var(--p-deepseek); }
.provider-openrouter .model-dot { background: var(--p-openrouter); }

.meter { display: block; height: 6px; border-radius: 999px; background: var(--surface-2); overflow: hidden; border: 1px solid var(--line); }
.meter-fill { display: block; height: 100%; border-radius: inherit; }
.meter-ok { background: var(--ok); }
.meter-warn { background: var(--warn); }
.meter-risk { background: var(--risk); }
.meter-cell { width: 22%; min-width: 120px; }

.empty { color: var(--ink-3); margin: 0; }

.facts { display: grid; grid-template-columns: auto 1fr; gap: 6px 14px; margin: 0 0 10px; font-size: 14px; }
.facts dt { color: var(--ink-2); }
.facts dd { margin: 0; text-align: right; }

.bullets { margin: 0; padding-left: 18px; display: grid; gap: 6px; }

.list { list-style: none; margin: 0; padding: 0; }
.list-row {
  display: flex; align-items: center; gap: 12px; padding: 10px 0; border-top: 1px solid var(--line);
}
.list-row:first-child { border-top: 0; padding-top: 0; }
.list-main { flex: 1; min-width: 0; }
a.list-main { color: var(--ink); text-decoration: none; font-weight: 550; }
a.list-main:hover { color: var(--brand); }

.timeline { list-style: none; margin: 0; padding: 0; display: grid; gap: 12px; }
.timeline li { display: grid; gap: 2px; padding-left: 14px; border-left: 2px solid var(--line); font-size: 14px; }
.timeline-when { font-size: 12px; color: var(--ink-3); font-variant-numeric: tabular-nums; }

.alert-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 8px; }
.alert { padding: 10px 12px; border-radius: var(--radius-sm); font-size: 14px; border-left: 3px solid; }
.alert-ok { background: var(--ok-soft); border-color: var(--ok); }
.alert-info { background: var(--info-soft); border-color: var(--info); }
.alert-warn { background: var(--warn-soft); border-color: var(--warn); }

.tabs { display: flex; flex-wrap: wrap; gap: 6px; }
.tab {
  padding: 6px 12px; border-radius: 999px; border: 1px solid var(--line);
  background: var(--surface); color: var(--ink-2); font: inherit; font-size: 13.5px; cursor: pointer;
}
.tab.is-active { background: var(--ink); border-color: var(--ink); color: var(--surface); }

.table-wrap { overflow-x: auto; }
.table { width: 100%; border-collapse: collapse; font-size: 14px; min-width: 640px; }
.table th {
  text-align: left; font-size: 12px; font-weight: 600; letter-spacing: 0.04em; text-transform: uppercase;
  color: var(--ink-3); padding: 0 10px 8px; border-bottom: 1px solid var(--line);
}
.table td { padding: 10px; border-bottom: 1px solid var(--line); vertical-align: top; }
.table tr:last-child td { border-bottom: 0; }
.table td.num { white-space: nowrap; }
.table .is-muted td { color: var(--ink-3); }
.rule { color: var(--ink-3); }

.toggle { display: inline-flex; align-items: center; gap: 10px; cursor: pointer; font-size: 14px; }
.toggle input { width: 18px; height: 18px; accent-color: var(--brand); flex: none; }

/* --- Forms and dialogs --------------------------------------------------- */

.form { display: grid; gap: 14px; }
.form-row { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; }
.form-actions { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: 8px; }
.field { display: grid; gap: 5px; min-width: 0; }
.field-label { font-size: 13px; font-weight: 600; color: var(--ink-2); }
.field-hint { font-size: 12.5px; color: var(--ink-3); }
.fieldset { border: 0; margin: 0; padding: 0; display: grid; gap: 8px; }

input[type="text"], input[type="number"], select, textarea {
  width: 100%; font: inherit; font-size: 14px; color: var(--ink);
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-sm);
  padding: 8px 10px;
}
textarea { resize: vertical; }

.estimate { margin: 0; padding: 10px 12px; border-radius: var(--radius-sm); background: var(--surface-2); font-size: 14px; }
.rule-preview { padding: 10px 12px; border-radius: var(--radius-sm); background: var(--brand-soft); font-size: 14px; }

.check-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(190px, 1fr)); gap: 6px 14px; }
.check { display: flex; align-items: center; gap: 8px; font-size: 14px; }
.check input { accent-color: var(--brand); }

.dialog {
  width: min(640px, calc(100vw - 32px)); max-height: calc(100vh - 48px);
  padding: 0; border: 1px solid var(--line); border-radius: var(--radius);
  background: var(--surface); color: var(--ink); box-shadow: var(--shadow);
}
.dialog::backdrop { background: rgb(10 20 16 / 45%); }
.dialog > *:not(.dialog-head) { padding: 18px 20px 20px; }
.dialog-head {
  display: flex; align-items: center; justify-content: space-between; gap: 12px;
  padding: 14px 16px 14px 20px; border-bottom: 1px solid var(--line);
}
.dialog-head h2 { margin: 0; font-size: 17px; }

.pick-list { list-style: none; margin: 0; display: grid; gap: 6px; }
.pick-item {
  display: grid; gap: 2px; width: 100%; text-align: left; padding: 10px 12px; cursor: pointer;
  border: 1px solid var(--line); border-radius: var(--radius-sm); background: var(--surface); color: var(--ink); font: inherit;
}
.pick-item:hover { border-color: var(--brand); }

.toast-region {
  position: fixed; z-index: 60; left: 50%; transform: translateX(-50%);
  bottom: calc(20px + env(safe-area-inset-bottom, 0px));
}
.toast {
  background: var(--ink); color: var(--surface); padding: 10px 16px; border-radius: var(--radius-sm);
  box-shadow: var(--shadow); font-size: 14px; max-width: min(520px, calc(100vw - 32px));
}

/* --- Chat ---------------------------------------------------------------- */

.chat {
  display: grid; grid-template-columns: 270px minmax(0, 1fr) 290px;
  height: calc(100vh - var(--topbar));
}

.chat-list { border-right: 1px solid var(--line); background: var(--surface); overflow-y: auto; padding: 16px 12px; }
.chat-list-head { display: flex; align-items: center; justify-content: space-between; margin: 0 4px 12px; }
.h-section { font-size: 16px; margin: 0; }
.chat-list-items { list-style: none; margin: 0; padding: 0; display: grid; gap: 4px; }
.chat-list-item {
  display: grid; gap: 2px; width: 100%; text-align: left; padding: 9px 10px; cursor: pointer;
  border: 1px solid transparent; border-radius: var(--radius-sm); background: transparent; color: var(--ink); font: inherit;
}
.chat-list-item:hover { background: var(--surface-2); }
.chat-list-item.is-active { background: var(--brand-soft); border-color: var(--brand-soft); }
.chat-list-title { font-size: 14px; font-weight: 600; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.chat-list-meta { font-size: 12px; color: var(--ink-3); }
.chat-list-model { display: block; color: var(--ink-2); }

.chat-thread { display: grid; grid-template-rows: auto minmax(0, 1fr) auto; min-width: 0; }
.thread-head {
  display: flex; align-items: center; justify-content: space-between; gap: 12px;
  padding: 14px 24px; border-bottom: 1px solid var(--line); background: var(--surface);
}
.thread-title { margin: 0; font-size: 16px; }

.messages { overflow-y: auto; padding: 24px; display: grid; align-content: start; gap: 18px; }
.messages-empty { text-align: center; padding: 48px 16px; }

.msg { max-width: 760px; }
.msg-body p { margin: 0 0 0.35em; }
.msg-user { justify-self: end; background: var(--brand-soft); padding: 12px 16px; border-radius: 14px 14px 4px 14px; }
.msg-assistant { background: var(--surface); border: 1px solid var(--line); padding: 12px 16px 14px; border-radius: 14px 14px 14px 4px; }
.msg-assistant.is-streaming { border-color: var(--brand); }
.msg-system { background: var(--risk-soft); padding: 12px 16px; border-radius: var(--radius-sm); }
.msg-head { display: flex; flex-wrap: wrap; align-items: center; gap: 8px 12px; margin-bottom: 8px; }
.msg-meta { font-size: 12px; color: var(--ink-3); }
.msg-attachments { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 8px; }

.handoff { display: flex; align-items: center; gap: 12px; font-size: 13px; }
.handoff-line { flex: 1; height: 1px; background: var(--line); }
.handoff-text { max-width: 620px; text-align: center; }

.composer {
  display: grid; gap: 8px; padding: 14px 24px calc(16px + env(safe-area-inset-bottom, 0px));
  border-top: 1px solid var(--line); background: var(--surface);
}
.composer-attachments { display: flex; flex-wrap: wrap; gap: 6px; }
.composer-attachments:empty { display: none; }
.attachment {
  display: inline-flex; align-items: center; gap: 4px; padding: 2px 4px 2px 10px;
  border: 1px solid var(--line); border-radius: 999px; font-size: 13px; background: var(--surface-2);
}
.composer-bar { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; }
.composer-model select { width: auto; max-width: 280px; }

.chat-side { border-left: 1px solid var(--line); background: var(--surface); overflow-y: auto; padding: 16px; display: grid; align-content: start; gap: 22px; }
.side-block { display: grid; gap: 8px; }
.side-title { margin: 0; font-size: 12px; font-weight: 600; letter-spacing: 0.06em; text-transform: uppercase; color: var(--ink-3); }
.mini-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 8px; font-size: 13px; }

/* --- Tasks --------------------------------------------------------------- */

.board { display: grid; grid-template-columns: repeat(4, minmax(220px, 1fr)); gap: 14px; overflow-x: auto; padding-bottom: 6px; }
.board-col { background: var(--surface-2); border-radius: var(--radius); padding: 12px; display: grid; align-content: start; gap: 10px; min-width: 0; }
.board-col-head { display: flex; align-items: center; justify-content: space-between; margin: 0 2px 2px; font-size: 13px; font-weight: 650; }
.count { font-size: 12px; color: var(--ink-3); font-variant-numeric: tabular-nums; }

.task-card {
  display: grid; gap: 8px; padding: 12px 14px; border-radius: var(--radius-sm);
  background: var(--surface); border: 1px solid var(--line); color: var(--ink); text-decoration: none;
}
.task-card:hover { border-color: var(--brand); }
.task-card-title { font-weight: 600; font-size: 14px; }
.task-card-meta { font-size: 12.5px; color: var(--ink-2); }
.task-card-foot { display: flex; justify-content: space-between; gap: 8px; }

.steps { list-style: none; margin: 0; padding: 0; display: grid; gap: 6px; }
.step {
  display: grid; grid-template-columns: 64px minmax(0, 1fr) auto auto 70px; align-items: center; gap: 12px;
  padding: 10px 12px; border-radius: var(--radius-sm); border: 1px solid var(--line); background: var(--surface);
}
.step-worker { margin-left: 28px; }
.step-running { border-color: var(--info); }
.step-waiting { border-color: var(--warn); }
.step-kind { font-size: 11px; font-weight: 700; letter-spacing: 0.06em; text-transform: uppercase; color: var(--ink-3); }
.step-label { font-size: 14px; min-width: 0; }
.step .num { text-align: right; }

/* --- Prompts, memory, arena, settings ------------------------------------ */

.side-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 6px; }
.side-list-item {
  display: grid; gap: 2px; width: 100%; text-align: left; padding: 10px 12px; cursor: pointer;
  border: 1px solid var(--line); border-radius: var(--radius-sm); background: var(--surface); color: var(--ink); font: inherit;
}
.side-list-item.is-active { border-color: var(--brand); background: var(--brand-soft); }

.prompt-text {
  margin: 0 0 10px; padding: 14px 16px; border-radius: var(--radius-sm); background: var(--surface-2);
  font-family: var(--mono); font-size: 13.5px; line-height: 1.6; white-space: pre-wrap; overflow-wrap: anywhere;
}
mark.var { background: var(--warn-soft); color: var(--warn); border-radius: 3px; padding: 0 2px; }

.memory-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 10px; }
.memory {
  display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 8px 16px; align-items: start;
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 14px 16px;
}
.memory-text { margin: 0; font-weight: 550; }
.memory-text[contenteditable="true"] { outline: 2px solid var(--focus); border-radius: 4px; padding: 2px 4px; }
.memory-meta { grid-column: 1; display: flex; flex-wrap: wrap; align-items: center; gap: 6px 10px; }
.memory-actions { grid-column: 2; grid-row: 1 / span 2; display: flex; gap: 6px; }

.arena-grid { display: grid; gap: 14px; }
.arena-grid.cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.arena-grid.cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.arena-card { display: grid; align-content: start; gap: 10px; }
.arena-card .card-title { margin: 0; }
.arena-card.is-winner { border-color: var(--ok); box-shadow: 0 0 0 1px var(--ok); }
.arena-answer p { margin: 0 0 0.3em; font-size: 14px; }

.provider-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 14px; }
.provider { display: grid; align-content: start; gap: 10px; }
.policy-list { list-style: none; margin: 0 0 12px; padding: 0; display: grid; gap: 12px; }

/* --- Charts -------------------------------------------------------------- */

.chart { width: 100%; height: auto; display: block; }
.chart-grid { stroke: var(--line); stroke-width: 1; }
.chart-axis { fill: var(--ink-3); font-size: 11px; font-family: var(--font); }
.chart-bar { fill: var(--brand); opacity: 0.55; }
.chart-bar-last { opacity: 1; }

/* --- Narrow screens ------------------------------------------------------ */

@media (max-width: 1180px) {
  .chat { grid-template-columns: 250px minmax(0, 1fr); }
  .chat-side { display: none; }
  .kpis { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 900px) {
  .layout { grid-template-columns: minmax(0, 1fr); }
  .nav-toggle { display: inline-grid; }
  .nav {
    position: fixed; z-index: 30; top: var(--topbar); left: 0; bottom: 0; width: min(280px, 85vw);
    height: auto; transform: translateX(-100%); transition: transform 0.18s ease; box-shadow: var(--shadow);
    padding-left: max(12px, env(safe-area-inset-left, 0px));
  }
  .nav-open .nav { transform: none; }
  .view { padding: 20px max(16px, env(safe-area-inset-right, 0px)) 56px max(16px, env(safe-area-inset-left, 0px)); }
  .workspace, .prototype-badge { display: none; }
  .grid-2, .split, .form-row { grid-template-columns: minmax(0, 1fr); }
  .arena-grid.cols-2, .arena-grid.cols-3 { grid-template-columns: minmax(0, 1fr); }
  .chat { grid-template-columns: minmax(0, 1fr); grid-template-rows: auto minmax(0, 1fr); }
  .chat-list { border-right: 0; border-bottom: 1px solid var(--line); max-height: 190px; }
  .messages, .composer, .thread-head { padding-left: max(16px, env(safe-area-inset-left, 0px)); padding-right: max(16px, env(safe-area-inset-right, 0px)); }
  .step { grid-template-columns: minmax(0, 1fr) auto; }
  .step-kind { grid-column: 1 / -1; }
  .step-worker { margin-left: 12px; }
}

@media (max-width: 560px) {
  .budget-pill { min-width: 0; grid-template-columns: auto; }
  .budget-label { display: none; }
  .kpis { grid-template-columns: minmax(0, 1fr); }
  .memory { grid-template-columns: minmax(0, 1fr); }
  .memory-actions { grid-column: 1; grid-row: auto; }
}

@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; scroll-behavior: auto !important; }
}