/* Hallmark · genre: modern-minimal · macrostructure: Workbench (app: centered composer home + chat/stage workspace) · theme: TDI red
 * enrichment: none — function carries the page · design-system: design.md · designed-as-app
 * Hallmark · pre-emit critique: P4 H5 E5 S4 R4 V4 */

:root {
  --color-tdi-red: #c9343d;
  --color-tdi-red-strong: #a9222d;
  --color-tdi-red-soft: #fff1f2;
  --color-accent: var(--color-tdi-red);
  --color-accent-strong: var(--color-tdi-red-strong);
  --color-focus: var(--color-tdi-red);
  --color-accent-ink: #fff;
}

/* ════════ Shared app pieces ════════ */
.beta {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  font-weight: 500;
  letter-spacing: var(--tracking-label);
  text-transform: uppercase;
  color: var(--color-accent);
  border: 1px solid var(--color-accent);
  border-radius: var(--radius-btn);
  padding: 0 var(--space-2xs);
}
.btn-quiet {
  background: none;
  border: none;
  padding: var(--space-xs) var(--space-sm);
  border-radius: var(--radius-btn);
  font: inherit;
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-muted);
  cursor: pointer;
  white-space: nowrap;
  transition: color var(--dur-micro) var(--ease-out);
}
@media (hover: hover) {
  .btn-quiet:hover { color: var(--color-ink); }
}
.btn-quiet:active { color: var(--color-accent); }

.cred-chip {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  min-height: 2.25rem;
  padding: 0 var(--space-sm);
  border: 1px solid var(--color-rule-2);
  border-radius: var(--radius-btn);
  font-size: var(--text-sm);
  color: var(--color-neutral);
  white-space: nowrap;
}
.cred-chip .num {
  font-family: var(--font-mono);
  font-weight: 600;
  font-variant-numeric: tabular-nums;
  color: var(--color-ink);
}
.cred-chip.low { border-color: var(--color-error); color: var(--color-error); }
.cred-chip.low .num { color: var(--color-error); }
.credit-action { color: var(--color-ink); font-size: var(--text-xs); font-weight: 600; text-decoration-color: var(--color-tdi-red); text-decoration-thickness: 2px; text-underline-offset: 0.2em; white-space: nowrap; }
@media (hover: hover) { .credit-action:hover { color: var(--color-tdi-red-strong); } }

.note {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--space-md);
  border: 1px solid var(--color-rule-2);
  border-radius: var(--radius-btn);
  padding: var(--space-sm) var(--space-md);
  font-size: var(--text-sm);
  text-align: start;
}
.note--error { border-color: var(--color-error); background: var(--color-error-bg); color: var(--color-error); }
.note--ok { border-color: var(--color-accent); color: var(--color-ink); }
.note--upgrade { border-color: var(--color-accent); color: var(--color-ink); flex-wrap: wrap; align-items: center; }
.note--upgrade .cta-link { font-size: var(--text-sm); min-height: 2rem; }
.note-close {
  position: relative;
  background: none;
  border: none;
  padding: 0 var(--space-2xs);
  font: inherit;
  font-weight: 600;
  color: inherit;
  cursor: pointer;
  line-height: 1.4;
  transition: opacity var(--dur-micro) var(--ease-out);
}
.note-close::before { content: ""; position: absolute; inset: -12px; }
@media (hover: hover) { .note-close:hover { opacity: 0.7; } }
.note-close:active { opacity: 0.5; }

textarea {
  width: 100%;
  padding: var(--space-md);
  font: inherit;
  line-height: 1.6;
  color: var(--color-ink);
  background: var(--color-paper);
  border: none;
  border-radius: var(--radius-card) var(--radius-card) 0 0;
  outline: 2px solid transparent;
  resize: vertical;
  display: block;
}
textarea::placeholder { color: var(--color-muted); }
textarea:focus-visible { outline: none; }

/* ════════ HOME — centered, composer-first ════════ */
.home-shell { display: flex; flex-direction: column; min-height: 100dvh; }
.eng-time-chip {
  display: inline-flex; align-items: center; gap: 0.35rem; padding: 0.3rem 0.6rem;
  border: 1px solid var(--color-accent); border-radius: 999px; color: var(--color-accent);
  font-size: var(--text-xs); font-weight: 600; white-space: nowrap;
}
.eng-time-chip svg { width: 1rem; height: 1rem; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
@media (max-width: 34rem) { .eng-time-chip span { display: none; } }

.home {
  flex: 1;
  width: 100%;
  padding: var(--space-3xl) var(--page-gutter) var(--space-3xl);
  display: grid;
  align-content: center;
}
.home-content { width: min(100%, 46rem); margin-inline: auto; display: flex; flex-direction: column; gap: var(--space-lg); }
.home-hero { text-align: center; }
.home-hero h1 { font-size: var(--text-display-s); font-weight: 600; }
.home-hero p { margin-top: var(--space-sm); color: var(--color-neutral); }
.home-hero-type::after {
  content: '';
  display: inline-block;
  width: 2px;
  height: 0.85em;
  margin-left: 2px;
  background: currentColor;
  vertical-align: -0.05em;
  animation: home-hero-caret 1s step-end infinite;
}
@keyframes home-hero-caret {
  50% { opacity: 0; }
}
@media (prefers-reduced-motion: reduce) {
  .home-hero-type::after { animation: none; }
}

.composer {
  border: 1px solid var(--color-rule-strong);
  border-radius: var(--radius-card);
  background: var(--color-paper);
  text-align: start;
  transition: border-color var(--dur-short) var(--ease-out);
}
.composer:focus-within { border-color: var(--color-accent); }
.composer textarea { min-height: 7.5rem; }
.composer-bar {
  display: flex;
  flex-direction: column;
  align-items: stretch;
  gap: var(--space-md);
  border-top: 1px solid var(--color-rule);
  padding: var(--space-sm) var(--space-md);
  flex-wrap: wrap;
}
.composer-counter { min-height: 1.25rem; }
.composer-bar-bottom { display: flex; align-items: center; justify-content: space-between; gap: var(--space-md); width: 100%; }
.composer-tools { display: flex; align-items: center; gap: var(--space-sm); flex-wrap: wrap; }
.composer-go { display: flex; align-items: center; gap: var(--space-md); }
.hint {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-muted);
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}
.hint kbd { font-size: var(--text-xs); padding: 0 var(--space-2xs); }

.home-section { margin-top: var(--space-xl); text-align: start; }
.project-list-head { display: flex; align-items: center; justify-content: space-between; gap: var(--space-md); margin-bottom: var(--space-sm); }
.project-list-head .label { display: block; }
.project-scope-toggle { min-height: 2rem; }
.rows { border: 1px solid var(--color-rule); border-radius: var(--radius-card); overflow: hidden; }
.row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
  padding: var(--space-2xs) var(--space-2xs) var(--space-2xs) var(--space-lg);
  background: var(--color-paper);
  border: none;
}
.row + .row { border-top: 1px solid var(--color-rule); }
.row-main { display: flex; align-items: center; justify-content: space-between; gap: var(--space-md); flex: 1; min-width: 0; padding: var(--space-sm) 0; border: none; background: transparent; font: inherit; text-align: start; cursor: pointer; }
@media (hover: hover) { .row:hover { background: var(--color-paper-2); } }
.row-main:active { background: var(--color-paper-3); }
.row .t {
  font-weight: 500;
  color: var(--color-ink);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.row .d {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-muted);
  white-space: nowrap;
}
.row-action { min-height: 2rem; padding: var(--space-3xs) var(--space-xs); border: 1px solid var(--color-rule-strong); border-radius: var(--radius-btn); background: var(--color-paper); color: var(--color-ink); font: inherit; font-size: var(--text-xs); cursor: pointer; }
.row-action:disabled { opacity: 0.45; cursor: not-allowed; }
.rows-empty {
  border: 1px dashed var(--color-rule-2);
  border-radius: var(--radius-card);
  padding: var(--space-lg);
  color: var(--color-muted);
  font-size: var(--text-sm);
  text-align: center;
}

.upgrade-box {
  border: 1px solid var(--color-rule-2);
  border-radius: var(--radius-card);
  background: var(--color-paper);
  padding: var(--space-md) var(--space-lg);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
  flex-wrap: wrap;
  text-align: start;
}
.upgrade-box p { font-size: var(--text-sm); color: var(--color-neutral); }
.upgrade-box .cta-link { font-size: var(--text-sm); min-height: 2rem; }

/* ════════ WORKSPACE — chat rail + full-bleed stage ════════ */
.work-shell { display: grid; grid-template-rows: auto auto minmax(0, 1fr) auto; height: 100dvh; overflow: hidden; }
.project-actions {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
  min-height: 3.75rem;
  padding: var(--space-xs) var(--space-xl);
  border-bottom: 1px solid var(--color-rule);
  background: var(--color-paper-2);
}
.project-nav-title { display: flex; align-items: center; gap: var(--space-xs); min-width: 12rem; max-width: 32rem; flex: 1; }
.icon-button {
  display: inline-grid;
  place-items: center;
  flex: 0 0 auto;
  width: 2.25rem;
  height: 2.25rem;
  padding: 0;
  border: 1px solid transparent;
  border-radius: var(--radius-input);
  background: transparent;
  color: var(--color-ink);
  cursor: pointer;
}
.icon-button svg, .project-action svg { width: 1.1rem; height: 1.1rem; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
@media (hover: hover) { .icon-button:hover { border-color: var(--color-rule-strong); background: var(--color-paper); } }
.project-action-list { display: flex; align-items: center; gap: var(--space-xs); flex-wrap: wrap; justify-content: flex-end; }
.project-action {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-xs);
  min-height: 2.5rem;
  padding: var(--space-xs) var(--space-sm);
  border: 1px solid var(--color-rule-strong);
  border-radius: var(--radius-btn);
  background: var(--color-paper);
  color: var(--color-ink);
  font: inherit;
  font-size: var(--text-sm);
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
}
.project-action--primary { border-color: var(--color-accent); background: var(--color-accent); color: var(--color-accent-ink); }
.project-action:disabled { opacity: 0.45; cursor: not-allowed; }
.project-action .eng-time {
  padding: 0.05rem 0.4rem; border-radius: 999px; font-family: var(--font-mono);
  font-size: var(--text-xs); font-weight: 600; background: rgb(255 255 255 / 0.22);
}
.engagement-chip {
  display: inline-flex; align-items: center; gap: var(--space-xs); min-height: 2.5rem;
  padding: var(--space-xs) var(--space-sm); border: 1px solid var(--color-rule-strong);
  border-radius: var(--radius-btn); font-size: var(--text-sm); font-weight: 500; color: var(--color-ink-2);
}
.engagement-chip.requested { border-color: var(--color-accent); color: var(--color-accent); }
.engagement-chip.active { border-color: #1f9d55; color: #1f7a44; }
@media (hover: hover) {
  .project-action:not(:disabled):hover { border-color: var(--color-accent); color: var(--color-accent); }
  .project-action--primary:hover { background: var(--color-accent-strong); color: var(--color-accent-ink); }
}
.work {
  display: grid;
  grid-template-columns: 24rem minmax(0, 1fr);
  min-height: 0;
  overflow: hidden;
}

.chat {
  display: flex;
  flex-direction: column;
  min-height: 0;
  border-inline-end: 1px solid var(--color-rule);
  background: var(--color-paper-2);
}
.chat-head {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  padding: var(--space-sm) var(--space-md);
  border-bottom: 1px solid var(--color-rule);
  min-height: 3.5rem;
  justify-content: space-between;
}
.chat-head .label { color: var(--color-neutral); }

/* AI work / Human work tabs */
.chat-tabs { display: flex; border-bottom: 1px solid var(--color-rule); min-height: 3.25rem; }
.chat-tab {
  flex: 1; display: inline-flex; align-items: center; justify-content: center; gap: 0.4rem;
  padding: var(--space-sm); font: inherit; font-size: var(--text-sm); font-weight: 600;
  color: var(--color-neutral); background: transparent; border: none; cursor: pointer;
  border-bottom: 2px solid transparent;
}
.chat-tab.is-active { color: var(--color-ink); border-bottom-color: var(--color-accent); }
.chat-tab.is-session-active { color: #1f7a44; }
.chat-tab.is-session-active.is-active { border-bottom-color: #1f9d55; }
.chat-tab.is-session-pending { color: #8a6300; }
.chat-tab.is-session-pending.is-active { border-bottom-color: #e8a400; }
.chat-tab:focus-visible { outline: 2px solid var(--color-focus); outline-offset: -2px; }
.chat-tab-dot { width: 0.5rem; height: 0.5rem; border-radius: 50%; background: var(--color-accent); flex: none; }
.session-tab-dot { width: 0.5rem; height: 0.5rem; border-radius: 50%; background: #1f9d55; box-shadow: 0 0 0 3px rgb(31 157 85 / 0.16); flex: none; animation: session-live-pulse 1.1s ease-in-out infinite; }
.session-tab-dot.is-pending { background: #e8a400; box-shadow: 0 0 0 3px rgb(232 164 0 / 0.18); }
.chat-pane { display: flex; flex-direction: column; flex: 1 1 auto; min-height: 0; }
.human-thread-wrap { display: flex; flex-direction: column; flex: 1 1 auto; min-height: 0; }
.human-meta {
  display: flex; align-items: center; gap: var(--space-sm);
  padding: var(--space-sm) var(--space-md); border-bottom: 1px solid var(--color-rule);
  background: var(--color-paper);
}
.human-avatar {
  width: 2rem; height: 2rem; border-radius: 50%; flex: none; display: grid; place-items: center;
  background: var(--color-accent); color: var(--color-accent-ink); font-weight: 600; font-size: var(--text-sm);
}
.human-name { font-size: var(--text-sm); font-weight: 600; color: var(--color-ink); }
.human-status { font-size: var(--text-xs); color: var(--color-neutral); }
.chat-empty { color: var(--color-muted); font-size: var(--text-sm); text-align: center; margin: auto; }
.human-empty {
  flex: 1 1 auto; display: flex; flex-direction: column; align-items: center; justify-content: center;
  gap: var(--space-sm); padding: var(--space-xl) var(--space-lg); text-align: center;
}
.human-empty-icon svg { width: 2.5rem; height: 2.5rem; fill: none; stroke: var(--color-accent); stroke-width: 1.5; stroke-linecap: round; stroke-linejoin: round; }
.human-empty h3 { font-size: var(--text-md); color: var(--color-ink); }
.human-empty p { font-size: var(--text-sm); color: var(--color-neutral); max-width: 22rem; }

/* Session bar in the Human work tab */
.session-bar { border-bottom: 1px solid var(--color-rule); background: var(--color-paper); }
.session-bar > div { padding: var(--space-sm) var(--space-md); font-size: var(--text-sm); }
.session-live, .session-idle { display: flex; align-items: center; justify-content: space-between; gap: var(--space-sm); flex-wrap: wrap; color: var(--color-ink-2); }
.session-dot { display: inline-block; width: 0.55rem; height: 0.55rem; border-radius: 50%; background: #1f9d55; box-shadow: 0 0 0 3px rgb(31 157 85 / 0.18); flex: none; margin-right: 0.4rem; animation: session-live-pulse 1.1s ease-in-out infinite; vertical-align: middle; }
.session-dot.is-pending { background: #e8a400; box-shadow: 0 0 0 3px rgb(232 164 0 / 0.18); }
.session-countdown { font-variant-numeric: tabular-nums; color: #17633a; }
.session-out { color: var(--color-neutral); }
.session-out a { color: var(--color-accent); text-decoration: underline; }
.session-review { display: flex; flex-direction: column; gap: var(--space-xs); }
.session-review-label { font-size: var(--text-sm); font-weight: 600; color: var(--color-ink); }
.star-row { display: flex; gap: 0.15rem; }
.star { background: none; border: none; cursor: pointer; font-size: 1.4rem; line-height: 1; color: var(--color-rule-strong); padding: 0; }
.star.on { color: #e8a400; }
.star:focus-visible { outline: 2px solid var(--color-focus); outline-offset: 2px; border-radius: 4px; }
.session-review textarea { font: inherit; font-size: var(--text-sm); padding: 0.4rem 0.55rem; border: 1px solid var(--color-rule-strong); border-radius: var(--radius-input); resize: none; }
.session-review-actions { display: flex; justify-content: flex-end; gap: var(--space-xs); }
.title-input {
  flex: 1;
  min-width: 0;
  height: 2.25rem;
  padding-inline: var(--space-xs);
  font: inherit;
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-ink);
  background: transparent;
  border: 1px solid transparent;
  border-radius: var(--radius-input);
  outline: 2px solid transparent;
  outline-offset: 1px;
}
@media (hover: hover) { .title-input:hover { border-color: var(--color-rule-strong); } }
.title-input:focus-visible { outline: 2px solid var(--color-focus); border-color: var(--color-rule-strong); }

.chat-log {
  flex: 1;
  min-height: 0;
  overflow-y: auto;
  padding: var(--space-md);
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}
.msg { max-width: 100%; }
.message-meta { display: flex; align-items: center; justify-content: space-between; gap: var(--space-sm); margin-bottom: var(--space-2xs); }
.msg .who {
  display: block;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  font-weight: 500;
  letter-spacing: var(--tracking-label);
  text-transform: uppercase;
  margin: 0;
  color: var(--color-muted);
}
.msg--bot .who { color: var(--color-accent); }
.msg .body {
  font-size: var(--text-sm);
  line-height: 1.6;
  color: var(--color-ink-2);
  overflow-wrap: anywhere;
}
.msg--user .body {
  background: var(--color-paper);
  border: 1px solid var(--color-rule);
  border-radius: var(--radius-btn);
  padding: var(--space-xs) var(--space-sm);
}
.msg--busy .body { display: flex; align-items: center; gap: var(--space-xs); color: var(--color-neutral); }
.message-model { display: block; margin-top: var(--space-2xs); color: var(--color-muted); font-family: var(--font-mono); font-size: 0.68rem; }
.message-timestamp { display: block; margin-top: var(--space-3xs); color: var(--color-muted); font-family: var(--font-mono); font-size: 0.68rem; font-variant-numeric: tabular-nums; }
.message-role-chip { display: inline-flex; align-items: center; min-height: 1.15rem; flex: none; padding: 0 var(--space-2xs); border: 1px solid var(--color-rule-strong); border-radius: 999px; color: var(--color-muted); font-family: var(--font-mono); font-size: 0.58rem; font-weight: 600; letter-spacing: 0.04em; text-transform: uppercase; }
.session-timeline { display: flex; align-items: center; justify-content: space-between; gap: var(--space-sm); padding: var(--space-xs) var(--space-sm); border-left: 2px solid var(--color-rule-strong); background: var(--color-paper); color: var(--color-neutral); font-family: var(--font-mono); font-size: 0.68rem; line-height: 1.5; }
.session-timeline--started { border-left-color: #1f9d55; color: #17633a; }
.session-timeline--ended { border-left-color: var(--color-accent); }
.session-rating { color: var(--color-ink); font-weight: 600; white-space: nowrap; }
@keyframes session-live-pulse { 0%, 100% { opacity: 1; transform: scale(1); } 50% { opacity: 0.38; transform: scale(0.78); } }

.chat-composer {
  border-top: 1px solid var(--color-rule);
  background: var(--color-paper);
}
.chat-composer textarea { min-height: 4.5rem; border-radius: 0; }
.chat-composer-bar {
  display: flex;
  flex-direction: column;
  align-items: stretch;
  gap: var(--space-sm);
  padding: var(--space-xs) var(--space-md) var(--space-sm);
}
.chat-composer-actions { display: flex; align-items: center; justify-content: flex-end; gap: var(--space-sm); }
.chat-composer-bar.chat-composer-actions { flex-direction: row; align-items: center; justify-content: flex-end; }
.eng-session-controls { display: flex; justify-content: flex-end; gap: var(--space-xs); padding: 0 var(--space-md) var(--space-sm); }
.chat-foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-md);
  border-top: 1px solid var(--color-rule);
  flex-wrap: wrap;
}

.stage { display: flex; flex-direction: column; min-width: 0; min-height: 0; }
.stage-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
  padding: var(--space-sm) var(--space-lg);
  border-bottom: 1px solid var(--color-rule);
  min-height: 3.5rem;
}
.stage-bar .left { display: flex; align-items: center; gap: var(--space-sm); min-width: 0; }
.mode-chip {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  font-weight: 500;
  letter-spacing: var(--tracking-label);
  text-transform: uppercase;
  color: var(--color-neutral);
  border: 1px solid var(--color-rule-2);
  border-radius: var(--radius-btn);
  padding: var(--space-3xs) var(--space-xs);
  white-space: nowrap;
}
.stage-actions { display: flex; align-items: center; gap: var(--space-sm); flex-wrap: wrap; justify-content: flex-end; }

.stage-body { position: relative; flex: 1; min-height: 0; background: var(--color-paper-2); }
.stage-body iframe {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: 0;
}
.stage-empty {
  position: absolute;
  inset: 0;
  display: grid;
  place-content: center;
  justify-items: center;
  padding: var(--space-xl);
  text-align: center;
  color: var(--color-neutral);
}
.stage-empty h2 { margin-top: var(--space-md); color: var(--color-ink); font-size: var(--text-xl); }
.stage-empty p { margin-top: var(--space-xs); }
.stage-generation-overlay {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  padding: var(--space-xl);
  background: oklch(96% 0.01 258 / 0.78);
  z-index: var(--z-raised);
}
.build-progress--overlay {
  width: min(100%, 30rem);
  padding: var(--space-lg);
  border: 1px solid var(--color-rule);
  border-radius: var(--radius-card);
  background: oklch(98% 0.005 258 / 0.92);
  box-shadow: 0 1rem 2.5rem oklch(20% 0.02 258 / 0.12);
}
.stage-loading {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  padding: var(--space-xl);
  background: var(--color-paper-2);
  z-index: var(--z-raised);
}
.build-loader { width: min(100%, 46rem); display: grid; gap: var(--space-xl); }
.build-skeleton { padding: var(--space-xl); border: 1px solid var(--color-rule); border-radius: var(--radius-card); background: var(--color-paper); }
.skeleton-line { display: block; width: 100%; height: 0.8rem; margin-top: var(--space-sm); border-radius: 999px; background: var(--color-paper-3); animation: builder-pulse 1.5s ease-in-out infinite; }
.skeleton-line--short { width: 36%; height: 1.4rem; margin-top: 0; }
.skeleton-line--medium { width: 68%; }
.skeleton-cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-sm); margin-top: var(--space-xl); }
.skeleton-cards span { min-height: 6rem; border: 1px solid var(--color-rule); border-radius: var(--radius-input); background: var(--color-paper-2); animation: builder-pulse 1.5s ease-in-out infinite; }
.build-progress { display: grid; grid-template-columns: auto minmax(0, 1fr); gap: var(--space-md); align-items: start; width: min(100%, 30rem); margin-inline: auto; }
.build-spinner { width: 2rem; height: 2rem; border: 2px solid var(--color-rule-strong); border-top-color: var(--color-accent); border-radius: 50%; animation: spin 0.8s linear infinite; }
.build-events { display: grid; gap: var(--space-xs); margin-top: var(--space-sm); padding: 0; list-style: none; }
.build-events li { display: flex; align-items: center; gap: var(--space-xs); color: var(--color-muted); font-size: var(--text-sm); transition: color var(--dur-short) var(--ease-out); }
.build-events li.active { color: var(--color-ink); font-weight: 600; }
.build-events li.done { color: var(--color-neutral); }
.build-events li.error { color: var(--color-error); }
.event-dot { width: 0.5rem; height: 0.5rem; border: 1px solid var(--color-rule-strong); border-radius: 50%; background: var(--color-paper); }
.build-events li.active .event-dot { border-color: var(--color-accent); background: var(--color-accent); box-shadow: 0 0 0 3px var(--color-tdi-red-soft); }
.build-events li.done .event-dot { border-color: var(--color-accent); background: var(--color-accent); }
.build-events li.error .event-dot { border-color: var(--color-error); background: var(--color-error); }
@keyframes builder-pulse { 0%, 100% { opacity: 0.5; } 50% { opacity: 1; } }

.builder-foot-meta a { color: inherit; white-space: nowrap; }
.builder-foot-meta .sep { user-select: none; }
@media (hover: hover) { .builder-foot-meta a:hover { color: var(--color-ink); } }

/* Project context: a focused editor for the immutable generation brief. */
.context-overlay {
  position: fixed;
  inset: 0;
  z-index: var(--z-modal);
  display: flex;
  justify-content: flex-end;
  background: var(--color-scrim);
}
.context-drawer {
  width: min(46rem, 100%);
  height: 100%;
  display: grid;
  grid-template-rows: auto minmax(0, 1fr) auto;
  background: var(--color-paper);
  border-left: 1px solid var(--color-rule-strong);
  box-shadow: -1.5rem 0 4rem oklch(20% 0.02 258 / 0.16);
}
.context-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--space-lg);
  padding: var(--space-lg) var(--space-xl);
  border-bottom: 1px solid var(--color-rule);
}
.context-head h2 { margin-top: var(--space-2xs); font-size: var(--text-xl); }
.context-version { margin-left: var(--space-xs); color: var(--color-accent); }
.context-body { min-height: 0; overflow-y: auto; padding: var(--space-lg) var(--space-xl) var(--space-xl); }
.context-intro { max-width: 42rem; color: var(--color-neutral); font-size: var(--text-sm); line-height: 1.65; }
.context-warning { margin-top: var(--space-md); padding: var(--space-sm) var(--space-md); border: 1px solid var(--color-rule-2); border-radius: var(--radius-input); background: var(--color-paper-2); color: var(--color-ink-2); font-size: var(--text-sm); }
.context-error { margin-top: var(--space-md); color: var(--color-error); font-size: var(--text-sm); }
.context-loading { margin-top: var(--space-xl); color: var(--color-neutral); }
.context-documents { display: grid; gap: var(--space-lg); margin-top: var(--space-xl); }
.context-document { border-top: 1px solid var(--color-rule-strong); padding-top: var(--space-md); }
.context-document-head { display: flex; align-items: flex-start; justify-content: space-between; gap: var(--space-md); margin-bottom: var(--space-sm); }
.context-document h3 { font-size: var(--text-md); }
.context-document-head p { margin-top: var(--space-3xs); color: var(--color-muted); font-size: var(--text-xs); }
.context-document textarea {
  width: 100%;
  min-height: 15rem;
  resize: vertical;
  padding: var(--space-md);
  border: 1px solid var(--color-rule-strong);
  border-radius: var(--radius-input);
  outline: 2px solid transparent;
  outline-offset: 2px;
  background: var(--color-paper-2);
  color: var(--color-ink-2);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  line-height: 1.65;
}
.context-document textarea:focus-visible { outline-color: var(--color-focus); border-color: var(--color-accent); }
.context-document textarea[readonly] { color: var(--color-neutral); cursor: default; }
.context-lock, .context-lock-state { flex: none; font-family: var(--font-mono); font-size: var(--text-xs); color: var(--color-neutral); }
.context-lock { display: inline-flex; align-items: center; gap: var(--space-2xs); cursor: pointer; }
.context-lock input { width: 1rem; height: 1rem; accent-color: var(--color-accent); }
.context-lock-state { padding: var(--space-3xs) var(--space-xs); border: 1px solid var(--color-rule); border-radius: var(--radius-btn); }
.context-actions { display: flex; align-items: center; justify-content: space-between; gap: var(--space-lg); padding: var(--space-md) var(--space-xl); border-top: 1px solid var(--color-rule); background: var(--color-paper); }
.context-actions p { color: var(--color-muted); font-size: var(--text-xs); }
.context-actions > div { display: flex; align-items: center; gap: var(--space-md); }

/* Account settings — dialog, tabs, field groups, and an intentionally empty billing history. */
.settings-overlay {
  position: fixed;
  inset: 0;
  z-index: var(--z-modal);
  display: grid;
  place-items: center;
  padding: var(--space-md);
  background: oklch(20% 0.02 258 / 0.34);
}
.settings-dialog {
  display: flex;
  flex-direction: column;
  width: min(100%, 36rem);
  max-height: min(44rem, calc(100dvh - 2 * var(--space-md)));
  overflow: hidden;
  border: 1px solid var(--color-rule-strong);
  border-radius: var(--radius-card);
  background: var(--color-paper);
  box-shadow: 0 1.5rem 4rem oklch(20% 0.02 258 / 0.2);
}
.settings-head { display: flex; align-items: flex-start; justify-content: space-between; gap: var(--space-lg); padding: var(--space-lg) var(--space-xl) var(--space-md); border-bottom: 1px solid var(--color-rule); }
.settings-head h2 { margin-top: var(--space-2xs); font-size: var(--text-xl); }
.settings-head p:not(.label) { margin-top: var(--space-2xs); color: var(--color-muted); font-size: var(--text-sm); }
.settings-tabs { display: flex; gap: var(--space-2xs); padding: var(--space-sm) var(--space-xl); border-bottom: 1px solid var(--color-rule); }
.settings-tabs button { min-height: 2rem; padding: 0 var(--space-sm); border: 1px solid transparent; border-radius: var(--radius-btn); background: transparent; color: var(--color-muted); font: inherit; font-size: var(--text-sm); font-weight: 600; cursor: pointer; }
.settings-tabs button.is-active { border-color: var(--color-rule-strong); background: var(--color-paper-2); color: var(--color-ink); }
.settings-tabs button:focus-visible { outline: 2px solid var(--color-focus); outline-offset: 1px; }
.settings-body { overflow-y: auto; padding: var(--space-xl); }
.settings-panel { display: grid; gap: var(--space-xl); }
.settings-profile { display: flex; align-items: center; gap: var(--space-md); }
.settings-profile > div { display: grid; gap: var(--space-3xs); min-width: 0; }
.settings-profile strong { color: var(--color-ink); }
.settings-profile span { color: var(--color-muted); font-size: var(--text-sm); overflow-wrap: anywhere; }
.settings-form { display: grid; gap: var(--space-md); padding-top: var(--space-xl); border-top: 1px solid var(--color-rule); }
.settings-section-head { display: grid; gap: var(--space-2xs); }
.settings-section-head h3 { font-size: var(--text-md); }
.settings-section-head p { color: var(--color-muted); font-size: var(--text-sm); }
.settings-field { display: grid; gap: var(--space-2xs); }
.settings-field > span { color: var(--color-ink); font-size: var(--text-sm); font-weight: 600; }
.settings-field input { width: 100%; min-height: 2.75rem; padding: 0 var(--space-sm); border: 1px solid var(--color-rule-strong); border-radius: var(--radius-input); outline: 2px solid transparent; outline-offset: 1px; background: var(--color-paper); color: var(--color-ink); font: inherit; }
.settings-field input:focus-visible { border-color: var(--color-accent); outline-color: var(--color-focus); }
.settings-actions { display: flex; justify-content: flex-end; padding-top: var(--space-2xs); }
.settings-feedback { padding: var(--space-sm); border: 1px solid var(--color-rule-2); border-radius: var(--radius-btn); font-size: var(--text-sm); }
.settings-feedback--error { border-color: var(--color-error); color: var(--color-error); }
.settings-feedback--ok { border-color: var(--color-accent); color: var(--color-ink); }
.settings-callout { padding: var(--space-md); border: 1px solid var(--color-rule-2); border-radius: var(--radius-card); background: var(--color-paper-2); }
.settings-callout p { margin-top: var(--space-2xs); color: var(--color-neutral); font-size: var(--text-sm); }
.plan-card { display: flex; align-items: flex-end; justify-content: space-between; gap: var(--space-lg); padding: var(--space-lg); border: 1px solid var(--color-rule-strong); border-radius: var(--radius-card); background: var(--color-paper-2); }
.plan-card h3 { margin-top: var(--space-2xs); font-size: var(--text-lg); }
.plan-card p:not(.label) { margin-top: var(--space-xs); color: var(--color-neutral); font-size: var(--text-sm); }
.payment-history { display: grid; gap: var(--space-md); }
.settings-empty { display: grid; justify-items: center; gap: var(--space-sm); padding: var(--space-2xl) var(--space-lg); border: 1px dashed var(--color-rule-strong); border-radius: var(--radius-card); text-align: center; }
.settings-empty svg { width: 1.5rem; height: 1.5rem; fill: none; stroke: var(--color-muted); stroke-width: 1.6; stroke-linecap: round; stroke-linejoin: round; }
.settings-empty strong { color: var(--color-ink); }
.settings-empty p { max-width: 24rem; color: var(--color-muted); font-size: var(--text-sm); }

/* ════════ Mobile ════════ */
@media (max-width: 60rem) {
  .home { padding-top: var(--space-xl); }
  .composer-bar { align-items: stretch; }
  .composer-bar-bottom { align-items: stretch; flex-direction: column; }
  .composer-go { justify-content: space-between; flex: 1; }

  .work { display: flex; flex-direction: column; }
  .stage { order: 1; flex: 1 1 55%; }
  .chat { order: 2; flex: 1 1 45%; border-inline-end: none; border-top: 1px solid var(--color-rule); }
  .stage-bar { padding-inline: var(--space-lg); }
  .project-actions { padding-inline: var(--space-lg); align-items: flex-start; }
  .project-action span { display: none; }
  .project-action { width: 2.5rem; padding-inline: 0; }
}
@media (max-height: 48rem) {
  .home { align-content: start; padding-block: var(--space-xl); }
}
@media (max-width: 40rem) {
  .composer-go .btn { flex: 1; }
  .composer-go, .chat-composer-actions { flex-wrap: wrap; }
  .chat-composer-actions .btn { flex: 1 1 10rem; }
  .stage-actions .btn { padding-inline: var(--space-sm); }
  .builder-foot-meta { flex-direction: column; }
  .builder-foot-meta .sep { display: none; }
  .project-actions { padding-inline: var(--space-sm); }
  .project-nav-title { min-width: 0; }
  .home-user .greet { display: none; }
  .context-drawer { border-left: 0; }
  .context-head, .context-body, .context-actions { padding-inline: var(--space-md); }
  .context-actions { align-items: stretch; flex-direction: column; }
  .context-actions > div { justify-content: flex-end; }
  .context-document textarea { min-height: 12rem; }
  .settings-head, .settings-tabs, .settings-body { padding-inline: var(--space-md); }
  .plan-card { align-items: stretch; flex-direction: column; }
  .plan-card .btn { width: 100%; }
}
@media (prefers-reduced-motion: reduce) {
  .skeleton-line, .skeleton-cards span, .build-spinner, .session-dot, .session-tab-dot { animation: none; }
}
/* Required whenever an account has not acknowledged the current legal version. */
.legal-gate {
  position: fixed;
  inset: 0;
  z-index: var(--z-modal);
  display: grid;
  place-items: center;
  padding: var(--space-lg);
  background: var(--color-scrim);
}
.legal-gate-card {
  width: min(100%, 32rem);
  padding: var(--space-xl);
  border: 1px solid var(--color-rule-2);
  border-radius: var(--radius-card);
  background: var(--color-paper);
  box-shadow: 0 1.5rem 4rem oklch(20% 0.02 258 / 0.22);
}
.legal-gate-card h2 { margin-top: var(--space-sm); font-size: var(--text-xl); }
.legal-gate-card > p:not(.label, .legal-gate-error) { margin-top: var(--space-md); color: var(--color-neutral); font-size: var(--text-sm); line-height: 1.65; }
.legal-gate-check { display: grid; grid-template-columns: auto minmax(0, 1fr); gap: var(--space-sm); align-items: start; margin-top: var(--space-lg); color: var(--color-ink-2); font-size: var(--text-sm); line-height: 1.55; cursor: pointer; }
.legal-gate-check input { width: 1rem; height: 1rem; margin: 0.2rem 0 0; accent-color: var(--color-accent); }
.legal-gate-check a { color: var(--color-ink); font-weight: 600; }
.legal-gate-error { margin-top: var(--space-md); color: var(--color-error); font-size: var(--text-sm); }
.legal-gate-actions { display: flex; align-items: center; gap: var(--space-md); margin-top: var(--space-xl); }

/* ── Engineer mode (same builder window, opened from /staff/) ── */
.ai-readonly { padding: var(--space-sm) var(--space-md); border-top: 1px solid var(--color-rule); font-size: var(--text-xs); color: var(--color-neutral); }
.engagement-chip.active { border-color: #1f9d55; color: #1f7a44; }
.asset-pane { overflow-y: auto; }
.asset-list { display: flex; flex-direction: column; gap: var(--space-md); padding: var(--space-md); }
.asset { display: flex; flex-direction: column; gap: var(--space-xs); }
.asset-head { display: flex; align-items: baseline; justify-content: space-between; gap: var(--space-sm); }
.asset-head strong { font-family: var(--font-mono); font-size: var(--text-sm); }
.asset-tag { font-size: 0.66rem; color: var(--color-muted); text-align: right; }
.asset-code { min-height: 10rem; font-family: var(--font-mono); font-size: var(--text-xs); line-height: 1.5; padding: var(--space-sm); border: 1px solid var(--color-rule-strong); border-radius: var(--radius-input); resize: vertical; white-space: pre; overflow-wrap: normal; overflow-x: auto; }
.asset-doc { min-height: 6rem; font-family: var(--font-mono); font-size: var(--text-xs); line-height: 1.5; padding: var(--space-sm); border: 1px solid var(--color-rule-strong); border-radius: var(--radius-input); resize: vertical; }
.asset .btn { align-self: flex-start; }
.asset-ro { margin: 0; max-height: 9rem; overflow: auto; padding: var(--space-sm); border: 1px solid var(--color-rule); border-radius: var(--radius-input); background: var(--color-paper-2); font-family: var(--font-mono); font-size: var(--text-xs); color: var(--color-neutral); white-space: pre-wrap; }
/* Engineer mode: the AI Consultant never shows (checkAuth also removes the node). */
body.eng-mode #temanai-root { display: none !important; }