/* Barad — control-tower interface.
   Dark industrial console: warm ink surfaces, hairline borders,
   phosphor-amber accent, monospace data, serif wordmark. */

:root {
  color-scheme: dark;
  --ink-0: #0c0b09;
  --ink-1: #121110;
  --ink-2: #191715;
  --ink-3: #211e1b;
  --line: #2e2a25;
  --line-strong: #45403a;
  --bone: #e8e2d6;
  --bone-dim: #a89f90;
  --bone-faint: #8a8275;
  --amber: #f0a33c;
  --amber-dim: #8a6224;
  --green: #8fce76;
  --red: #e06c5a;
  --blue: #7fb3d3;
  --session-content-width: 1100px;
  --font-mono: ui-monospace, "SF Mono", "Cascadia Code", "JetBrains Mono", Menlo, Consolas, monospace;
  --font-serif: "Iowan Old Style", "Palatino Linotype", Palatino, Georgia, serif;
}

* { box-sizing: border-box; }

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

:where(button, a, input, select, textarea, [tabindex]):focus-visible {
  outline: 2px solid var(--amber);
  outline-offset: 2px;
}

html, body {
  margin: 0;
  padding: 0;
  height: 100%;
  background: var(--ink-0);
  color: var(--bone);
  font: 13px/1.5 var(--font-mono);
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
}

body {
  background-image:
    radial-gradient(ellipse 90% 55% at 50% -10%, rgba(240, 163, 60, 0.05), transparent 60%),
    repeating-linear-gradient(0deg, transparent 0 2px, rgba(255, 255, 255, 0.008) 2px 4px);
}

.hidden { display: none !important; }

::selection { background: var(--amber-dim); color: var(--bone); }

::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--line); border: 3px solid var(--ink-0); border-radius: 6px; }
::-webkit-scrollbar-thumb:hover { background: var(--line-strong); }

/* ---------- Buttons ---------- */

.btn {
  font: inherit;
  cursor: pointer;
  border: 1px solid var(--line-strong);
  background: var(--ink-2);
  color: var(--bone);
  padding: 0.5rem 0.9rem;
  border-radius: 3px;
  letter-spacing: 0.02em;
  transition: border-color 120ms ease, background 120ms ease, color 120ms ease;
}
.btn:hover { border-color: var(--amber); }
.btn:active:not(:disabled) { background-color: var(--ink-3); transform: translateY(1px); }
.btn-primary:active:not(:disabled) { background-color: var(--amber); }
.btn:disabled { opacity: 0.45; cursor: default; }
.btn:disabled:hover { border-color: var(--line-strong); }

.btn-primary {
  background: var(--amber);
  border-color: var(--amber);
  color: #16120a;
  font-weight: 600;
}
.btn-primary:hover { background: #ffb95a; border-color: #ffb95a; }

.btn-ghost,
.btn-danger-ghost { background: transparent; border-color: var(--line); color: var(--bone-dim); }
.btn-ghost:hover { color: var(--bone); }

.btn-danger-ghost:hover { border-color: var(--red); color: var(--red); }
.btn-danger-ghost.is-armed { border-color: var(--red); background: rgba(224, 108, 90, 0.12); color: var(--red); }

.btn-sm { padding: 0.25rem 0.6rem; font-size: 12px; }
.btn-lg { padding: 0.8rem 2.6rem; font-size: 15px; }

/* ---------- LEDs / status ---------- */

.led {
  display: inline-block;
  width: 8px;
  height: 8px;
  background: var(--bone-faint);
  box-shadow: 0 0 0 1px rgba(0, 0, 0, 0.4) inset;
  flex: none;
}
.led-green { background: var(--green); box-shadow: 0 0 6px rgba(143, 206, 118, 0.5); }
.led-amber { background: var(--amber); box-shadow: 0 0 6px rgba(240, 163, 60, 0.55); }
.led-red { background: var(--red); box-shadow: 0 0 6px rgba(224, 108, 90, 0.55); }
.led-gray { background: var(--bone-faint); }
.led-pulse { animation: led-pulse 1.2s ease-in-out infinite; }

@keyframes led-pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.35; }
}

.status-word {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--bone-dim);
}
.status-word.is-green { color: var(--green); }
.status-word.is-amber { color: var(--amber); }
.status-word.is-red { color: var(--red); }

/* ---------- Toasts ---------- */

.toast-host {
  position: fixed;
  top: 14px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 100;
  display: grid;
  gap: 6px;
  justify-items: center;
  pointer-events: none;
}
.toast {
  pointer-events: auto;
  max-width: 640px;
  background: var(--ink-3);
  border: 1px solid var(--line-strong);
  border-left: 3px solid var(--amber);
  padding: 0.55rem 0.9rem;
  border-radius: 3px;
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.5);
  animation: toast-in 160ms ease-out;
  white-space: pre-wrap;
  word-break: break-word;
}
.toast.is-error { border-left-color: var(--red); }
.toast.is-ok { border-left-color: var(--green); }

@keyframes toast-in {
  from { opacity: 0; transform: translateY(-8px); }
  to { opacity: 1; transform: none; }
}

/* ---------- Gate (signed out) ---------- */

.gate {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 2rem;
}
.gate-frame {
  text-align: center;
  max-width: 560px;
  border: 1px solid var(--line);
  padding: 4rem 3rem 3rem;
  background: linear-gradient(180deg, var(--ink-1), var(--ink-0));
  position: relative;
}
.gate-frame::before, .gate-frame::after {
  content: "";
  position: absolute;
  width: 14px;
  height: 14px;
  border: 1px solid var(--amber);
}
.gate-frame::before { top: -1px; left: -1px; border-right: none; border-bottom: none; }
.gate-frame::after { bottom: -1px; right: -1px; border-left: none; border-top: none; }

.gate-coords {
  margin: 0 0 2.5rem;
  font-size: 10px;
  letter-spacing: 0.35em;
  color: var(--bone-faint);
}
.gate-mark {
  margin: 0;
  font-family: var(--font-serif);
  font-size: clamp(3.5rem, 10vw, 5.5rem);
  font-weight: 400;
  letter-spacing: 0.22em;
  text-indent: 0.22em;
  color: var(--bone);
}
.gate-sub {
  margin: 1.2rem auto 0;
  max-width: 40ch;
  color: var(--bone-dim);
}
.gate-rule {
  width: 60px;
  height: 1px;
  background: var(--amber);
  margin: 2.2rem auto;
}
.gate-foot {
  margin: 2.5rem 0 0;
  font-size: 11px;
  color: var(--bone-faint);
}

.auth-form {
  display: grid;
  gap: 0.8rem;
  text-align: left;
  max-width: 340px;
  margin: 0 auto;
}
.auth-form .field { margin: 0; }
.auth-submit { margin-top: 0.4rem; }
.auth-link {
  font: inherit;
  font-size: 12px;
  background: transparent;
  border: none;
  color: var(--bone-dim);
  cursor: pointer;
  justify-self: center;
  padding: 0.2rem 0.4rem;
}
.auth-link:hover { color: var(--amber); text-decoration: underline; }
.auth-note {
  margin: 0;
  font-size: 11px;
  color: var(--bone-faint);
  text-align: center;
}
.auth-error {
  margin: 1rem auto 0;
  max-width: 340px;
  font-size: 12px;
  color: var(--red);
  border: 1px solid rgba(224, 108, 90, 0.35);
  border-left: 3px solid var(--red);
  border-radius: 3px;
  padding: 0.5rem 0.8rem;
  text-align: left;
  word-break: break-word;
}

/* ---------- Shell layout ---------- */

.shell {
  display: grid;
  grid-template-columns: 280px 1fr;
  height: 100vh;
  overflow: hidden;
}

/* ---------- Rail ---------- */

.rail {
  display: flex;
  flex-direction: column;
  border-right: 1px solid var(--line);
  background: var(--ink-1);
  min-height: 0;
}
.brand {
  padding: 1.1rem 1.2rem 0.9rem;
  border-bottom: 1px solid var(--line);
}
.brand-mark {
  margin: 0;
  font-family: var(--font-serif);
  font-size: 1.55rem;
  font-weight: 400;
  letter-spacing: 0.3em;
  color: var(--bone);
}
.brand-sub {
  margin: 0.1rem 0 0;
  font-size: 10px;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--amber);
}
.rail-actions { padding: 1rem 1.2rem 0.4rem; }
.rail-actions .btn { width: 100%; }
.rail-label {
  margin: 0.9rem 1.2rem 0.4rem;
  font-size: 10px;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--bone-faint);
}
.session-list {
  flex: 1;
  overflow-y: auto;
  min-height: 0;
  padding: 0 0.6rem 0.6rem;
  display: grid;
  gap: 3px;
  align-content: start;
}
.session-item {
  display: grid;
  grid-template-columns: 10px minmax(0, 1fr);
  grid-template-rows: auto auto;
  align-content: center;
  align-items: center;
  column-gap: 8px;
  row-gap: 2px;
  width: 100%;
  min-width: 0;
  text-align: left;
  font: inherit;
  color: inherit;
  background: transparent;
  border: 1px solid transparent;
  border-radius: 3px;
  padding: 0.55rem 0.6rem;
  cursor: pointer;
}
.session-item:hover { background: var(--ink-2); }
.session-item.is-active {
  background: var(--ink-3);
  border-color: var(--line-strong);
}
.session-item > .led {
  grid-column: 1;
  grid-row: 1;
  justify-self: center;
}
.session-item-name {
  grid-column: 2;
  grid-row: 1;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-weight: 600;
  line-height: 1.35;
}
.session-item-meta {
  grid-column: 2;
  grid-row: 2;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  color: var(--bone-faint);
  font-size: 11px;
  line-height: 1.35;
}
.session-summary { letter-spacing: 0.04em; color: var(--bone-dim); }
.session-list-empty {
  padding: 1rem 0.6rem;
  color: var(--bone-faint);
  font-size: 12px;
}
.rail-foot {
  border-top: 1px solid var(--line);
  padding: 0.8rem 1.2rem 1rem;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 0.5rem;
}
.account-line {
  min-width: 0;
  margin: 0;
  font-size: 11px;
  color: var(--bone-dim);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.settings-launch {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 30px;
  padding: 0;
  flex: none;
  color: var(--amber);
}
.settings-icon {
  display: inline-block;
  width: 1em;
  font-family: system-ui, sans-serif;
  font-size: 18px;
  font-weight: 400;
  line-height: 1;
  text-align: center;
  transform: translateY(-1px);
}

/* ---------- Stage ---------- */

.connection-status {
  min-height: 38px;
  padding: 0.45rem 1.4rem;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.8rem;
  border-bottom: 1px solid rgba(224, 108, 90, 0.5);
  background: rgba(224, 108, 90, 0.1);
  color: var(--red);
  font-size: 12px;
  text-align: center;
}
.connection-status .btn { flex: none; color: var(--bone); }

.stage {
  min-width: 0;
  min-height: 0;
  display: flex;
  flex-direction: column;
}
.empty-stage {
  flex: 1;
  display: grid;
  place-content: center;
  text-align: center;
  gap: 0.4rem;
}
.empty-mark {
  margin: 0;
  font-family: var(--font-serif);
  font-weight: 400;
  font-size: 1.6rem;
  letter-spacing: 0.06em;
  color: var(--bone-dim);
}
.empty-sub { margin: 0; color: var(--bone-faint); max-width: 44ch; }
.empty-action { justify-self: center; margin-top: 0.7rem; }

.session-stage,
.panel {
  flex: 1;
  min-height: 0;
  display: flex;
  flex-direction: column;
}

/* ---------- Session header ---------- */

.session-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1.5rem;
  padding: 0.9rem 1.4rem;
  border-bottom: 1px solid var(--line);
  background: var(--ink-1);
}
.session-head-id { min-width: 0; }
.session-title-row {
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
}
.session-title {
  margin: 0;
  flex: 1;
  min-width: 0;
  font-size: 1.05rem;
  font-weight: 600;
  letter-spacing: 0.01em;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.session-head-side {
  display: flex;
  align-items: center;
  gap: 1.2rem;
  flex: none;
}
.gauge-block { width: 170px; }
.gauge-labels {
  display: flex;
  justify-content: space-between;
  font-size: 10px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--bone-faint);
  margin-bottom: 4px;
}
.gauge {
  height: 4px;
  background: var(--ink-3);
  border: 1px solid var(--line);
}
.gauge-fill {
  height: 100%;
  width: 0;
  background: var(--amber);
  transition: width 400ms ease;
}
.gauge-fill.is-hot { background: var(--red); }
.head-buttons { display: flex; gap: 6px; }
.session-menu-button {
  display: grid;
  place-items: center;
  min-width: 2.5rem;
  height: 2.5rem;
  padding: 0;
  line-height: 1;
}

/* ---------- Tabs ---------- */

.tabs {
  display: flex;
  gap: 2px;
  padding: 0 1.4rem;
  border-bottom: 1px solid var(--line);
  background: var(--ink-1);
}
.tab {
  font: inherit;
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  background: transparent;
  border: none;
  border-bottom: 2px solid transparent;
  color: var(--bone-faint);
  padding: 0.6rem 0.9rem;
  cursor: pointer;
  margin-bottom: -1px;
}
.tab:hover { color: var(--bone-dim); }
.tab.is-active { color: var(--amber); border-bottom-color: var(--amber); }
.tab:focus-visible { outline-offset: -3px; }

/* ---------- Transcript ---------- */

.transcript-frame {
  position: relative;
  flex: 1;
  min-width: 0;
  min-height: 0;
}
.transcript {
  height: 100%;
  min-height: 0;
  overflow-y: auto;
  padding: 1.4rem;
  display: grid;
  gap: 0.9rem;
  align-content: start;
}
.transcript > * {
  min-width: 0;
  max-width: var(--session-content-width);
  width: 100%;
  margin: 0 auto;
}
.transcript-nav {
  position: absolute;
  inset: 0.8rem 1.4rem;
  z-index: 2;
  pointer-events: none;
}
.transcript-nav-button {
  position: absolute;
  right: 0;
  min-width: 4.6rem;
  pointer-events: auto;
  background: var(--ink-1);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.45);
}
#transcript-top { top: 0; }
#transcript-bottom { bottom: 0; }

.msg { display: grid; gap: 4px; }
.msg-tag {
  font-size: 10px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--bone-faint);
  display: flex;
  align-items: baseline;
  gap: 8px;
}
.msg-tag time { letter-spacing: 0.04em; }
.msg-user .msg-tag { color: var(--amber); }
.msg-agent .msg-tag { color: var(--blue); }

.msg-body {
  min-width: 0;
  border: 1px solid var(--line);
  border-radius: 3px;
  padding: 0.7rem 0.9rem;
  background: var(--ink-1);
  overflow-wrap: anywhere;
}
.msg-user .msg-body { border-left: 3px solid var(--amber); }
.msg-agent .msg-body { border-left: 3px solid var(--blue); background: var(--ink-2); }
.msg-live .msg-body, .msg-pending .msg-body { border-style: dashed; }

.cursor-blink {
  display: inline-block;
  width: 7px;
  height: 14px;
  background: var(--blue);
  vertical-align: text-bottom;
  margin-left: 3px;
  animation: led-pulse 0.9s step-end infinite;
}

/* markdown prose */
.prose { min-width: 0; max-width: 100%; }
.prose > :first-child { margin-top: 0; }
.prose > :last-child { margin-bottom: 0; }
.prose p { margin: 0 0 0.6rem; }
.prose h1, .prose h2, .prose h3 {
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: inherit;
  margin: 1rem 0 0.4rem;
}
.prose h1:first-child, .prose h2:first-child, .prose h3:first-child { margin-top: 0; }
.msg-user .prose h1, .msg-user .prose h2, .msg-user .prose h3 { color: var(--amber); }
.msg-agent .prose h1, .msg-agent .prose h2, .msg-agent .prose h3 { color: var(--blue); }
.thinking-body.prose h1, .thinking-body.prose h2, .thinking-body.prose h3 { color: var(--bone-dim); }
.prose ul, .prose ol { margin: 0 0 0.6rem; }
.prose ul { padding-inline-start: 1.6rem; list-style-type: disc; }
.prose ol { padding-inline-start: 2.5rem; list-style-type: decimal; }
.prose li { margin: 0.15rem 0; }
.prose li > p { margin: 0.35rem 0; }
.prose li > ul, .prose li > ol { margin: 0.25rem 0 0.35rem; }
.prose ul ul { list-style-type: circle; }
.prose ul ul ul { list-style-type: square; }
.prose code {
  background: var(--ink-3);
  border: 1px solid var(--line);
  border-radius: 2px;
  padding: 0 4px;
  font-size: 12px;
  overflow-wrap: anywhere;
  word-break: break-word;
}
.prose .code-block {
  width: 100%;
  max-width: 100%;
  min-width: 0;
  margin: 0.6rem 0;
  border: 1px solid var(--line);
  border-radius: 3px;
  background: var(--ink-0);
  overflow-x: auto;
  overscroll-behavior-inline: contain;
}
.prose .code-copy {
  position: sticky;
  left: calc(100% - 4.5rem);
  z-index: 1;
  display: block;
  margin: 0.4rem 0.4rem 0 auto;
  padding: 0.2rem 0.45rem;
  border: 1px solid var(--line-strong);
  border-radius: 2px;
  background: var(--ink-2);
  color: var(--bone-dim);
  font: 10px/1.4 var(--font-mono);
  cursor: pointer;
}
.prose .code-copy:hover { color: var(--bone); border-color: var(--amber); }
.prose .code-block pre {
  width: max-content;
  min-width: 100%;
  margin: 0;
  padding: 0.7rem 0.9rem;
  border: 0;
  background: transparent;
}
.prose .code-block code {
  display: block;
  padding: 0;
  border: 0;
  background: transparent;
  white-space: pre;
  overflow-wrap: normal;
  word-break: normal;
}
.prose .table-scroll {
  width: 100%;
  max-width: 100%;
  min-width: 0;
  margin: 0.6rem 0;
  overflow-x: auto;
  overscroll-behavior-inline: contain;
  border: 1px solid var(--line);
  border-radius: 3px;
}
.prose .table-scroll table {
  width: 100%;
  min-width: max-content;
  border-collapse: collapse;
  background: var(--ink-1);
}
.prose .table-scroll th,
.prose .table-scroll td {
  max-width: 36rem;
  padding: 0.45rem 0.65rem;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
  overflow-wrap: anywhere;
}
.prose .table-scroll th {
  background: var(--ink-3);
  color: var(--bone);
  font-size: 11px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
.prose .table-scroll .is-align-left { text-align: left; }
.prose .table-scroll .is-align-center { text-align: center; }
.prose .table-scroll .is-align-right { text-align: right; }
.prose .table-scroll tr:last-child td { border-bottom: 0; }
.prose .table-scroll th:last-child,
.prose .table-scroll td:last-child { border-right: 0; }
.prose .code-block:focus-visible,
.prose .table-scroll:focus-visible { outline: 1px solid var(--amber); outline-offset: 2px; }
.prose a { color: var(--blue); text-underline-offset: 2px; }
.prose blockquote {
  margin: 0.6rem 0;
  padding: 0.2rem 0.9rem;
  border-left: 2px solid var(--line-strong);
  color: var(--bone-dim);
}

/* reasoning summaries */
.thinking-card {
  border: 1px solid var(--line);
  border-left: 3px solid var(--bone-faint);
  border-radius: 3px;
  background: var(--ink-1);
}
.thinking-head {
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
  padding: 0.5rem 0.8rem;
  color: var(--bone-dim);
  cursor: pointer;
  list-style: none;
}
.thinking-head::-webkit-details-marker { display: none; }
.thinking-head:hover { color: var(--bone); }
.thinking-kind {
  flex: none;
  color: var(--bone-dim);
  font-size: 10px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}
.thinking-preview {
  flex: 1;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-size: 12px;
}
.thinking-head time {
  flex: none;
  color: var(--bone-faint);
  font-size: 10px;
}
.thinking-head::after {
  content: "+";
  flex: none;
  color: var(--bone-dim);
  font-size: 14px;
}
.thinking-card[open] .thinking-head::after { content: "−"; }
.thinking-card[open] .thinking-preview { display: none; }
.thinking-body {
  border-top: 1px solid var(--line);
  padding: 0.7rem 0.9rem;
  background: var(--ink-0);
  color: var(--bone-dim);
  overflow-wrap: anywhere;
}

/* tool cards */
.tool-card {
  border: 1px solid var(--line);
  border-radius: 3px;
  background: var(--ink-1);
}
.tool-card.is-failed { border-color: rgba(224, 108, 90, 0.45); }
.tool-head {
  width: 100%;
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  gap: 10px;
  min-width: 0;
  padding: 0.6rem 0.8rem;
  font: inherit;
  font-size: 12px;
  color: var(--bone-dim);
  background: transparent;
  border: none;
  cursor: pointer;
  text-align: left;
  list-style: none;
}
.tool-head::-webkit-details-marker { display: none; }
.tool-head:hover { color: var(--bone); }
.tool-head::after {
  content: "+";
  flex: none;
  color: var(--blue);
  font-size: 14px;
  line-height: 1.2;
}
.tool-card[open] .tool-head::after { content: "−"; }
.tool-kind {
  color: var(--blue);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 10px;
  line-height: 1.8;
  flex: none;
}
.tool-summary {
  flex: 1;
  min-width: 0;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
  line-height: 1.55;
}
.tool-state {
  flex: none;
  font-size: 10px;
  line-height: 1.8;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}
.tool-state.is-ok { color: var(--green); }
.tool-state.is-err { color: var(--red); }
.tool-state.is-run { color: var(--amber); }
.tool-failure-summary {
  order: 1;
  flex: 0 0 100%;
  padding: 0.45rem 0.6rem;
  border-left: 2px solid var(--red);
  background: rgba(224, 108, 90, 0.08);
  color: var(--red);
  line-height: 1.45;
  overflow-wrap: anywhere;
}
.tool-detail {
  border-top: 1px solid var(--line);
  background: var(--ink-0);
  color: var(--bone-dim);
}
.tool-detail-block { padding: 0.8rem 0.9rem; }
.tool-detail-block + .tool-detail-block { border-top: 1px solid var(--line); }
.tool-detail-title {
  margin-bottom: 0.65rem;
  color: var(--bone-faint);
  font-size: 10px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}
.tool-section + .tool-section { margin-top: 0.75rem; }
.tool-section-label {
  margin-bottom: 0.25rem;
  color: var(--bone-dim);
  font-size: 10px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.tool-value {
  margin: 0;
  padding: 0.6rem 0.7rem;
  border: 1px solid var(--line);
  border-radius: 2px;
  background: var(--ink-1);
  color: var(--bone);
  overflow: auto;
  max-height: 32rem;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
  font: 12px/1.55 var(--font-mono);
}
.tool-note {
  color: var(--bone-faint);
  font-size: 11px;
}
.tool-section + .tool-note, .tool-detail-title + .tool-note { margin-top: 0.6rem; }
.tool-result-meta {
  margin: -0.15rem 0 0.65rem;
  color: var(--green);
  font-size: 11px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
.tool-result-meta.is-error { color: var(--red); }
.tool-diff-stats {
  display: inline-flex;
  flex: none;
  gap: 8px;
  font-size: 10px;
  line-height: 1.8;
}
.tool-diff-stats .is-delete { color: var(--red); }
.tool-diff-stats .is-insert { color: var(--green); }
.tool-file-view, .tool-file-diff {
  max-width: 100%;
  overflow: auto;
  max-height: 32rem;
  border: 1px solid var(--line);
  border-radius: 3px;
  background: #090909;
}
.tool-file-content {
  min-width: max-content;
  margin: 0;
  padding: 0.75rem 0.85rem;
  color: var(--bone);
  white-space: pre;
  font: 12px/1.55 var(--font-mono);
}
.tool-file-empty {
  padding: 0.8rem 0.9rem;
  color: var(--bone-faint);
  font-size: 11px;
  font-style: italic;
}
.tool-diff-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  min-width: 100%;
  width: 100%;
}
.tool-diff-row { display: contents; }
.tool-diff-cell {
  display: grid;
  grid-template-columns: 1.8rem minmax(0, 1fr);
  min-width: 0;
  min-height: 1.55rem;
  color: var(--bone-dim);
  font: 12px/1.55 var(--font-mono);
}
.tool-diff-cell.is-old { border-right: 1px solid var(--line-strong); }
.tool-diff-cell.is-delete {
  border-left: 2px solid var(--red);
  background: rgba(224, 108, 90, 0.16);
  color: var(--bone);
}
.tool-diff-cell.is-insert {
  border-left: 2px solid var(--green);
  background: rgba(143, 206, 118, 0.16);
  color: var(--bone);
}
.tool-diff-cell.is-empty {
  min-height: 1.55rem;
  background: repeating-linear-gradient(135deg, transparent 0 7px, rgba(168, 159, 144, 0.08) 7px 9px);
}
.tool-diff-cell.is-meta {
  color: var(--bone-faint);
  font-style: italic;
}
.tool-diff-marker {
  padding-left: 0.45rem;
  color: var(--bone-faint);
  user-select: none;
}
.tool-diff-cell.is-delete .tool-diff-marker { color: var(--red); }
.tool-diff-cell.is-insert .tool-diff-marker { color: var(--green); }
.tool-diff-text {
  display: block;
  min-width: 0;
  padding-right: 0.8rem;
  color: inherit;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
  font: inherit;
}
.tool-diff-cell.is-delete .tool-diff-emphasis { background: rgba(224, 108, 90, 0.34); }
.tool-diff-cell.is-insert .tool-diff-emphasis { background: rgba(143, 206, 118, 0.32); }
.tool-diff-separator {
  position: sticky;
  left: 0;
  padding: 0.35rem 0.65rem;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  color: var(--bone-faint);
  background: var(--ink-1);
  font-size: 10px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}
.tool-diff-separator:first-child { border-top: 0; }
.web-search-findings {
  padding: 0.7rem 0.8rem;
  border: 1px solid var(--line);
  border-radius: 2px;
  background: var(--ink-1);
  color: var(--bone);
  overflow-wrap: anywhere;
}
.web-search-sources {
  display: grid;
  gap: 5px;
  margin: 0;
  padding: 0;
  list-style: none;
}
.web-search-sources li {
  min-width: 0;
  padding: 0.55rem 0.7rem;
  border: 1px solid var(--line);
  border-left: 3px solid var(--blue);
  border-radius: 2px;
  background: var(--ink-1);
}
.web-search-sources a {
  display: block;
  color: var(--blue);
  font-size: 12px;
  overflow-wrap: anywhere;
}
.web-search-sources span {
  display: block;
  margin-top: 2px;
  color: var(--bone-faint);
  font-size: 10px;
  overflow-wrap: anywhere;
}

/* divider rows: turn status, compaction */
.turn-divider {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--bone-faint);
  font-size: 10px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
}
.turn-divider::before, .turn-divider::after {
  content: "";
  flex: 1;
  height: 1px;
  background: var(--line);
}
.turn-divider.is-cancelled { color: var(--bone-dim); }
.turn-divider.is-compaction { color: var(--blue); }
.turn-divider.is-provider-retry { color: var(--amber); }

.transcript-error {
  display: grid;
  gap: 0.45rem;
  padding: 0.8rem 0.9rem;
  border: 1px solid rgba(224, 108, 90, 0.45);
  border-left: 3px solid var(--red);
  border-radius: 3px;
  background: rgba(224, 108, 90, 0.08);
  color: var(--bone);
}
.transcript-error header {
  display: flex;
  justify-content: space-between;
  color: var(--red);
  font-size: 10px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}
.transcript-error header time { color: var(--bone-faint); letter-spacing: 0.04em; }
.transcript-error strong { color: var(--red); font-size: 13px; }
.transcript-error p { margin: 0; color: var(--bone-dim); line-height: 1.55; overflow-wrap: anywhere; }
.transcript-error code { justify-self: start; color: var(--bone-faint); font-size: 10px; }

.transcript-empty {
  text-align: center;
  color: var(--bone-faint);
  padding: 3rem 0;
}
.transcript-history-retry {
  align-self: center;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--ink-2);
  color: var(--bone-dim);
  padding: 0.45rem 0.8rem;
  cursor: pointer;
}
.transcript-history-retry:hover { color: var(--bone); border-color: var(--bone-faint); }

.turn-activity {
  display: flex;
  align-items: center;
  gap: 9px;
  min-height: 42px;
  padding: 0.65rem 0.8rem;
  border: 1px dashed var(--line-strong);
  border-radius: 3px;
  background: var(--ink-1);
  color: var(--amber);
  font-size: 12px;
}
.turn-activity strong {
  flex: 1;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-weight: 600;
}
.turn-activity-spinner {
  width: 13px;
  height: 13px;
  flex: none;
  border: 2px solid var(--line-strong);
  border-top-color: var(--amber);
  border-radius: 50%;
  animation: turn-activity-spin 800ms linear infinite;
}
.turn-activity-elapsed {
  flex: none;
  margin-left: auto;
  white-space: nowrap;
  color: var(--bone-faint);
  font-size: 10px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.turn-activity.is-stopping { color: var(--red); }
.turn-activity.is-stopping .turn-activity-spinner { border-top-color: var(--red); }
@keyframes turn-activity-spin { to { transform: rotate(360deg); } }

/* ---------- Composer ---------- */

.composer {
  border-top: 1px solid var(--line);
  background: var(--ink-1);
  padding: 0.8rem 1.4rem 1rem;
}
.composer-media {
  display: flex;
  gap: 8px;
  max-width: var(--session-content-width);
  margin: 0 auto 0.65rem;
  overflow-x: auto;
}
.composer-media.hidden { display: none; }
.composer-media-item {
  position: relative;
  flex: 0 0 104px;
  height: 78px;
  overflow: hidden;
  border: 1px solid var(--line-strong);
  border-radius: 3px;
  background: var(--ink-0);
}
.composer-media-item img { width: 100%; height: 100%; object-fit: cover; }
.composer-media-remove {
  position: absolute;
  top: 4px;
  right: 4px;
  width: 24px;
  height: 24px;
  padding: 0;
  border: 1px solid var(--line-strong);
  border-radius: 50%;
  color: var(--bone);
  background: rgba(10, 10, 10, 0.82);
  cursor: pointer;
}
.composer-attach {
  flex: none;
  align-self: stretch;
  width: 44px;
  padding: 0;
  font-size: 20px;
}
.prompt-media {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 8px;
  margin-top: 0.75rem;
}
.prompt-media figure {
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 3px;
  background: var(--ink-0);
}
.prompt-media img { display: block; width: 100%; max-height: 520px; object-fit: contain; }
.prompt-media figcaption {
  padding: 0.4rem 0.55rem;
  overflow: hidden;
  color: var(--bone-faint);
  font-size: 10px;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.composer-row {
  display: flex;
  gap: 8px;
  align-items: stretch;
  max-width: var(--session-content-width);
  margin: 0 auto;
}
.composer textarea {
  flex: 1;
  font: inherit;
  color: var(--bone);
  background: var(--ink-0);
  border: 1px solid var(--line-strong);
  border-radius: 3px;
  padding: 0.6rem 0.8rem;
  resize: vertical;
  min-height: 3.2rem;
  max-height: 16rem;
  overflow-y: auto;
}
.composer textarea:focus { outline: none; border-color: var(--amber); }
.composer-actions {
  display: flex;
  flex: none;
  flex-direction: column;
  gap: 8px;
  width: 96px;
}
.composer-action {
  flex: 1 1 0;
  width: 100%;
  min-height: 2.6rem;
  padding: 0.5rem 0.65rem;
}

/* ---------- Browser (files / changes) ---------- */

.browser-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.6rem 1.4rem;
  border-bottom: 1px solid var(--line);
  background: var(--ink-1);
  min-height: 44px;
}
.browser-bar-actions { display: flex; gap: 6px; flex: none; }
.label-compact { display: none; }
.browser-bar-actions [aria-pressed="true"] { color: var(--amber); border-color: var(--amber-dim); }
.browser-title { margin: 0; font-size: 12px; color: var(--bone-dim); }
.file-transfer-status {
  flex: none;
  min-height: 30px;
  padding: 0.4rem 1.4rem;
  border-bottom: 1px solid var(--line);
  background: var(--ink-0);
  color: var(--green);
  font-size: 11px;
}
.file-transfer-status.is-error { color: var(--red); }
.crumbs {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 2px;
  min-width: 0;
  font-size: 12px;
}
.crumb {
  font: inherit;
  background: transparent;
  border: none;
  color: var(--blue);
  cursor: pointer;
  padding: 2px 4px;
}
.crumb:hover { text-decoration: underline; }
.crumb-sep { color: var(--bone-faint); }
.crumb-current { color: var(--bone); padding: 2px 4px; }

.browser-body {
  flex: 1;
  min-height: 0;
  overflow: auto;
  padding: 0.6rem 1.4rem 1.4rem;
}
.browser-body > * {
  width: 100%;
  max-width: var(--session-content-width);
  margin-left: auto;
  margin-right: auto;
}
.terminal-panel { background: #10130f; }
.terminal-bar { flex: none; }
.terminal-status {
  min-width: 0;
  margin: 0;
  color: var(--bone-dim);
  font-size: 12px;
}
.terminal-host {
  flex: 1;
  min-width: 0;
  min-height: 0;
  padding: 0;
  overflow: hidden;
  background: #10130f;
}
.terminal-host .terminal {
  height: 100%;
  padding: 0.65rem;
}
.terminal-host .xterm-viewport { scrollbar-width: thin; }
.browser-note { color: var(--bone-faint); padding: 1rem 0; }
.browser-state {
  display: grid;
  justify-items: start;
  gap: 0.7rem;
  color: var(--bone-dim);
}
.browser-state.is-error { color: var(--red); }
.browser-state .btn { color: var(--bone); }

.entry-table { width: 100%; border-collapse: collapse; }
.entry-table td {
  border-bottom: 1px solid var(--ink-3);
  padding: 0.35rem 0.6rem;
  vertical-align: middle;
}
.entry-row:hover td { background: var(--ink-2); }
.entry-row.is-selected td { background: rgba(226, 165, 76, 0.08); }
.entry-select {
  width: 2rem;
  text-align: center;
}
.entry-select input {
  display: block;
  width: 16px;
  height: 16px;
  margin: 0 auto;
  accent-color: var(--amber);
  cursor: pointer;
}
.entry-name { color: var(--bone); }
.entry-link {
  width: 100%;
  padding: 0;
  border: 0;
  background: transparent;
  color: inherit;
  font: inherit;
  text-align: left;
  cursor: pointer;
}
.entry-link:disabled { cursor: default; color: var(--bone-faint); }
.entry-name.is-dir { color: var(--blue); font-weight: 600; }
.entry-type { color: var(--bone-faint); font-size: 11px; width: 5rem; }
.entry-size { color: var(--bone-faint); text-align: right; width: 7rem; font-size: 11px; }
.entry-status { width: 5rem; letter-spacing: 0.1em; }
.entry-status .s-add { color: var(--green); }
.entry-status .s-del { color: var(--red); }
.entry-status .s-mod { color: var(--amber); }
.entry-status .s-unt { color: var(--blue); }

.viewer-head {
  display: flex;
  align-items: baseline;
  gap: 1rem;
  padding: 0.4rem 0 0.6rem;
  color: var(--bone-faint);
  font-size: 11px;
  flex-wrap: wrap;
}
.viewer-head .viewer-path { color: var(--bone); font-size: 12px; }
.code-view {
  margin: 0 auto;
  background: var(--ink-1);
  border: 1px solid var(--line);
  border-radius: 3px;
  padding: 0.8rem 1rem;
  overflow: auto;
  font-size: 12px;
  line-height: 1.55;
  white-space: pre;
  tab-size: 4;
}
.code-view.is-wrap { white-space: pre-wrap; word-break: break-word; }

.diff-view .d-add { color: var(--green); }
.diff-view .d-del { color: var(--red); }
.diff-view .d-hunk { color: var(--blue); }
.diff-view .d-meta { color: var(--bone-faint); }
.diff-line { display: block; }

.load-more-row { padding: 0.8rem 0; }

/* ---------- Dialogs ---------- */

.dialog {
  background: var(--ink-1);
  color: var(--bone);
  border: 1px solid var(--line-strong);
  border-radius: 4px;
  padding: 0;
  width: min(440px, 92vw);
  box-shadow: 0 24px 80px rgba(0, 0, 0, 0.6);
}
.dialog::backdrop { background: rgba(5, 4, 3, 0.7); }
.dialog-form { padding: 1.4rem 1.5rem 1.2rem; display: grid; gap: 0.8rem; }
.dialog-title {
  margin: 0;
  font-family: var(--font-serif);
  font-weight: 400;
  font-size: 1.3rem;
  letter-spacing: 0.06em;
}
.dialog-sub { margin: -0.4rem 0 0; color: var(--bone-dim); font-size: 12px; }
.field { display: grid; gap: 5px; font-size: 11px; letter-spacing: 0.1em; text-transform: uppercase; color: var(--bone-faint); }
.field input, .field select {
  font: 13px/1.4 var(--font-mono);
  letter-spacing: normal;
  text-transform: none;
  color: var(--bone);
  background: var(--ink-0);
  border: 1px solid var(--line-strong);
  border-radius: 3px;
  padding: 0.55rem 0.7rem;
}
.field input:focus, .field select:focus { outline: 2px solid var(--amber); outline-offset: 1px; border-color: var(--amber); }
.field input[aria-invalid="true"] { border-color: var(--red); }
.field select:disabled { color: var(--bone-faint); opacity: 0.7; }
.field-error {
  margin: -0.45rem 0 0;
  color: var(--red);
  font-size: 11px;
  line-height: 1.4;
}
.dialog-actions { display: flex; justify-content: flex-end; gap: 8px; margin-top: 0.4rem; }
.settings-dialog {
  width: min(720px, calc(100vw - 2rem));
  max-height: calc(100vh - 2rem);
  max-height: calc(100dvh - 2rem);
  overflow-y: auto;
}
.settings-dialog-form {
  gap: 0;
  padding: 0;
}
.settings-heading {
  padding: 1.3rem 1.5rem 1rem;
}
.settings-heading p,
.settings-panel-heading p,
.settings-card-heading p {
  margin: 0;
  color: var(--bone-dim);
  font-size: 12px;
}
.settings-heading p { margin-top: 0.25rem; }
.settings-tabs {
  position: sticky;
  top: 0;
  z-index: 3;
  display: flex;
  overflow-x: auto;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: var(--ink-0);
  scrollbar-width: thin;
}
.settings-tab {
  flex: 1 0 auto;
  min-height: 44px;
  padding: 0.65rem 1rem;
  border: 0;
  border-right: 1px solid var(--line);
  border-bottom: 2px solid transparent;
  background: transparent;
  color: var(--bone-faint);
  font: 11px/1.3 var(--font-mono);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  white-space: nowrap;
  cursor: pointer;
}
.settings-tab:last-child { border-right: 0; }
.settings-tab:hover { color: var(--bone); background: var(--ink-2); }
.settings-tab:focus-visible { outline: 1px solid var(--amber); outline-offset: -3px; }
.settings-tab.is-active {
  border-bottom-color: var(--amber);
  background: var(--ink-2);
  color: var(--amber);
}
.settings-panel {
  display: grid;
  gap: 1rem;
  min-height: 360px;
  padding: 1.2rem 1.5rem 1.4rem;
  align-content: start;
}
.settings-panel-heading h3,
.settings-card-heading h4 {
  margin: 0;
  color: var(--bone);
  font-size: 13px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.settings-panel-heading h3 { color: var(--amber); }
.settings-panel-heading p,
.settings-card-heading p { margin-top: 0.3rem; }
.settings-card {
  display: grid;
  gap: 0.9rem;
  min-width: 0;
  margin: 0;
  padding: 1rem;
  border: 1px solid var(--line);
  border-radius: 3px;
  background: var(--ink-0);
}
.settings-status {
  position: relative;
  margin: 0;
  padding: 0.6rem 0.7rem 0.6rem 2rem;
  border-left: 2px solid var(--bone-faint);
  background: var(--ink-2);
  color: var(--bone-dim);
  font-size: 12px;
  overflow-wrap: anywhere;
}
.settings-status::before {
  content: "";
  position: absolute;
  top: 0.95rem;
  left: 0.75rem;
  width: 7px;
  height: 7px;
  background: var(--bone-faint);
  box-shadow: 0 0 0 1px rgba(0, 0, 0, 0.4) inset;
}
.settings-status.is-ok { border-left-color: var(--green); }
.settings-status.is-ok::before { background: var(--green); box-shadow: 0 0 6px rgba(143, 206, 118, 0.5); }
.settings-status.is-warn, .settings-status.is-loading { border-left-color: var(--amber-dim); }
.settings-status.is-warn::before, .settings-status.is-loading::before { background: var(--amber); }
.settings-status.is-loading::before { animation: led-pulse 1.2s ease-in-out infinite; }
.settings-status.is-error { border-left-color: var(--red); color: var(--red); }
.settings-status.is-error::before { background: var(--red); box-shadow: 0 0 6px rgba(224, 108, 90, 0.55); }
.settings-card .browser-note {
  margin: 0;
  padding: 0.7rem;
  border: 1px solid var(--line);
  background: var(--ink-2);
  overflow-wrap: anywhere;
}
.settings-card .browser-note a { color: var(--blue); }
.settings-card-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 8px;
}
.settings-sign-out { border-color: rgba(224, 108, 90, 0.3); }
.settings-dialog-footer {
  position: sticky;
  bottom: 0;
  z-index: 3;
  display: flex;
  justify-content: flex-end;
  padding: 0.8rem 1.5rem 1rem;
  border-top: 1px solid var(--line);
  background: var(--ink-1);
}
.session-dialog { width: min(720px, 92vw); }
.session-toggle {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.7rem;
  border: 1px solid var(--line);
  background: var(--ink-0);
  cursor: pointer;
}
.session-toggle span { display: grid; gap: 0.25rem; }
.session-toggle strong {
  color: var(--bone-dim);
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}
.session-toggle small { color: var(--bone-faint); font-size: 11px; line-height: 1.45; }
.session-toggle input {
  width: 18px;
  height: 18px;
  flex: none;
  accent-color: var(--amber);
}
.session-toggle input:disabled { cursor: not-allowed; opacity: 0.6; }
.session-details {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  margin: 0.25rem 0;
  background: var(--line);
  border: 1px solid var(--line);
}
.session-details div { min-width: 0; padding: 0.6rem 0.7rem; background: var(--ink-0); }
.session-details dt {
  margin-bottom: 0.25rem;
  color: var(--bone-faint);
  font-size: 10px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}
.session-details dd { margin: 0; color: var(--bone-dim); font-size: 12px; overflow-wrap: anywhere; }
.session-share {
  display: grid;
  gap: 0.65rem;
  padding: 0.8rem;
  border: 1px solid var(--line);
  border-left: 2px solid var(--amber-dim);
  background: var(--ink-0);
}
.session-share-heading { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.session-share-heading h3 { margin: 0.15rem 0 0; color: var(--bone); font-family: var(--font-serif); font-size: 15px; }
.session-share-eyebrow {
  margin: 0;
  color: var(--amber);
  font-size: 9px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}
.session-share-note { margin: 0; color: var(--bone-faint); font-size: 11px; line-height: 1.5; }
.session-share-result {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto auto;
  gap: 7px;
  align-items: center;
}
.session-share-result input {
  min-width: 0;
  padding: 0.45rem 0.55rem;
  border: 1px solid var(--line-strong);
  border-radius: 3px;
  background: var(--ink-1);
  color: var(--bone-dim);
  font: 11px/1.4 var(--font-mono);
}
.session-share-result a { display: inline-flex; align-items: center; justify-content: center; text-decoration: none; }
.session-share-result p { grid-column: 1 / -1; margin: 0; color: var(--bone-faint); font-size: 10px; }
#session-share.is-armed { border-color: var(--amber); background: rgba(201, 151, 59, 0.12); color: var(--amber); }
.session-dialog-actions { display: flex; justify-content: space-between; gap: 12px; margin-top: 0.4rem; }
.session-dialog-actions > div { display: flex; gap: 8px; }

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

@media (max-width: 1100px) {
  .session-head {
    align-items: flex-start;
    flex-wrap: wrap;
  }
  .session-head-id, .session-head-side { width: 100%; }
  .session-head-side { justify-content: space-between; }
}

@media (pointer: coarse) {
  .btn { min-height: 40px; }
  .dialog-actions .btn, .session-dialog-actions .btn, .settings-card-actions .btn { min-height: 44px; }
  .session-menu-button { min-width: 44px; min-height: 44px; }
  .session-item { min-height: 44px; }
  .settings-launch { width: 40px; height: 40px; min-height: 40px; }
}

@media (max-width: 700px) {
  .shell {
    --mobile-gutter: 0.75rem;
    grid-template-columns: minmax(0, 1fr);
    grid-template-rows: auto minmax(0, 1fr);
    height: 100vh;
    height: 100dvh;
    min-height: 0;
    overflow: hidden;
  }

  /* New, sessions, and account settings share one compact navigation row. */
  .rail {
    display: grid;
    grid-template-columns: auto minmax(0, 1fr) auto;
    grid-template-rows: auto;
    align-items: center;
    gap: 0.4rem;
    min-height: 0;
    max-height: none;
    padding: 0.45rem var(--mobile-gutter);
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }
  .brand, .rail-label, .account-line { display: none; }
  .rail-actions {
    grid-column: 1;
    grid-row: 1;
    padding: 0;
  }
  .rail-actions .btn {
    width: auto;
    min-height: 44px;
    padding: 0.4rem 0.65rem;
  }
  .session-list {
    grid-column: 2;
    grid-row: 1;
    display: flex;
    gap: 5px;
    min-width: 0;
    overflow-x: auto;
    overflow-y: hidden;
    padding: 0;
    scrollbar-width: thin;
  }
  .session-item {
    flex: 0 0 min(190px, 58vw);
    min-height: 44px;
    padding: 0.35rem 0.5rem;
  }
  .session-list-empty { margin: 0; padding: 0.4rem 0; white-space: nowrap; }
  .rail-foot {
    grid-column: 3;
    grid-row: 1;
    display: block;
    padding: 0;
    border: 0;
  }
  .settings-launch {
    width: 44px;
    height: 44px;
    min-height: 44px;
    padding: 0;
    border-color: transparent;
  }

  .stage, .session-stage, .panel, .transcript-frame, .transcript, .composer {
    min-width: 0;
    max-width: 100%;
  }
  .stage, .session-stage { min-height: 0; overflow: hidden; }
  .connection-status {
    padding: 0.4rem var(--mobile-gutter);
    justify-content: space-between;
    text-align: left;
  }

  /* The active session identity, context, and sole session gear form one unit. */
  .session-head {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    grid-template-rows: auto auto;
    align-items: center;
    column-gap: 0.7rem;
    row-gap: 0.2rem;
    padding: 0.5rem var(--mobile-gutter);
    border-bottom: 0;
  }
  .session-head-id {
    grid-column: 1;
    grid-row: 1;
    width: auto;
    min-width: 0;
  }
  .session-title-row { gap: 7px; }
  .session-title { font-size: 0.95rem; }
  .status-word { letter-spacing: 0.08em; white-space: nowrap; }
  .session-head-side { display: contents; }
  .gauge-block {
    grid-column: 1;
    grid-row: 2;
    display: grid;
    grid-template-columns: auto minmax(70px, 1fr) auto;
    align-items: center;
    gap: 0.5rem;
    width: 100%;
    max-width: none;
  }
  .gauge-labels { display: contents; margin: 0; }
  .gauge-labels span:first-child { grid-column: 1; grid-row: 1; }
  .gauge-labels span:last-child { grid-column: 3; grid-row: 1; }
  .gauge { grid-column: 2; grid-row: 1; }
  .head-buttons {
    grid-column: 2;
    grid-row: 1 / 3;
    align-self: center;
  }
  .head-buttons .btn {
    width: 44px;
    min-height: 44px;
    padding: 0;
    border-color: transparent;
  }

  .tabs {
    gap: 0;
    padding: 0 var(--mobile-gutter);
    overflow-x: auto;
    flex: none;
  }
  .tab { flex: 1; padding: 0.5rem 0.25rem; letter-spacing: 0.05em; font-size: 10px; }
  .terminal-host .terminal { padding: 0.4rem; }

  .transcript {
    overflow-x: hidden;
    padding: 0.75rem var(--mobile-gutter);
    gap: 0.65rem;
  }
  .transcript > * { max-width: none; }
  .transcript-nav { inset: 0.5rem var(--mobile-gutter); }
  .transcript-nav-button {
    width: 44px;
    min-width: 44px;
    min-height: 44px;
    padding: 0;
  }
  .transcript-nav-text { display: none; }
  .msg-body { padding: 0.6rem 0.7rem; }
  .thinking-head, .tool-head { padding: 0.5rem 0.6rem; gap: 7px; }
  .thinking-body, .tool-detail-block { padding: 0.65rem 0.7rem; }
  .tool-value { max-height: 45dvh; padding: 0.5rem 0.6rem; }
  .tool-file-view, .tool-file-diff { max-height: 45dvh; }
  .tool-diff-grid {
    display: block;
    min-width: 100%;
    width: 100%;
  }
  .tool-diff-row { display: block; }
  .tool-diff-cell { width: 100%; }
  .tool-diff-cell.is-old { border-right: 0; }
  .tool-diff-cell.is-new.is-context,
  .tool-diff-cell.is-empty { display: none; }

  .composer {
    padding:
      0.5rem
      max(var(--mobile-gutter), env(safe-area-inset-right))
      max(0.5rem, env(safe-area-inset-bottom))
      max(var(--mobile-gutter), env(safe-area-inset-left));
  }
  .composer-row { gap: 6px; }
  .composer textarea {
    min-width: 0;
    min-height: 96px;
    max-height: 25dvh;
    padding: 0.5rem 0.6rem;
    font-size: 16px;
    resize: none;
  }
  .composer-actions { width: 72px; }
  .field input, .field select { font-size: 16px; }
  .composer-action { min-height: 44px; padding: 0.5rem 0.45rem; }
  .turn-activity { gap: 7px; padding: 0.6rem 0.65rem; }

  .browser-bar { padding: 0.5rem var(--mobile-gutter); }
  .file-transfer-status { padding-inline: var(--mobile-gutter); }
  .browser-bar-actions { gap: 4px; }
  .browser-bar-actions .btn { min-height: 36px; padding-inline: 0.5rem; }
  .label-full { display: none; }
  .label-compact { display: inline; }
  .browser-body { padding: 0.5rem var(--mobile-gutter) 0.8rem; }
  .viewer-head { gap: 0.6rem; }
  .entry-table td { padding: 0.35rem 0.4rem; }
  .entry-select { width: 1.8rem; padding-inline: 0.15rem !important; }
  .entry-select input { width: 18px; height: 18px; }

  .gate { padding: 0.75rem; }
  .empty-stage { padding: 1rem; }
  .gate-frame { width: 100%; padding: 2.2rem 1rem 1.5rem; }
  .gate-coords { margin-bottom: 1.5rem; letter-spacing: 0.2em; }
  .gate-mark { font-size: clamp(2.6rem, 16vw, 4rem); }
  .gate-rule { margin: 1.5rem auto; }
  .gate-foot { margin-top: 1.5rem; }
  .dialog-form { padding: 1.1rem 1rem 1rem; }
  .settings-dialog-form { padding: 0; }
  .settings-heading { padding: 1rem; }
  .settings-panel { min-height: 0; padding: 1rem; }
  .settings-dialog-footer { padding: 0.75rem 1rem; }
  .settings-tab { padding-inline: 0.8rem; }
  .settings-card { padding: 0.85rem; }
  .settings-card-actions .btn { min-height: 44px; }
  .dialog { max-height: calc(100dvh - 1rem); overflow-y: auto; }
  .session-details { grid-template-columns: 1fr; }
  .session-share-heading { align-items: stretch; flex-direction: column; }
  .session-share-result { grid-template-columns: 1fr 1fr; }
  .session-share-result input { grid-column: 1 / -1; }
  .session-dialog-actions { align-items: stretch; flex-direction: column-reverse; }
  .session-dialog-actions > div { justify-content: flex-end; }
  .toast { max-width: calc(100vw - 1rem); }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
  }
  .turn-activity-spinner { animation: none !important; }
}

@media (max-width: 480px) {
  .session-item { flex-basis: min(170px, 56vw); }
  #head-status { font-size: 10px; }
  .tool-kind, .tool-state { letter-spacing: 0.08em; }
  .tool-summary { font-size: 11px; }
  .turn-divider { gap: 7px; letter-spacing: 0.12em; }
}

.tool-screenshot { margin: 10px 0 0; border: 1px solid var(--line); background: var(--panel); }
.tool-screenshot img { display: block; width: 100%; height: auto; max-height: 70vh; object-fit: contain; }
.tool-screenshot figcaption { padding: 7px 9px; color: var(--muted); font-size: 11px; border-top: 1px solid var(--line); }