/* dshoo control plane — visual language taken from the DeepSeek Harness web
   GUI: the same semantic tokens (--dsw-*), the same type scale, the same
   hairline borders and radii. Tokens are resolved here so the pages follow the
   OS colour scheme exactly like the harness does. */

:root {
  color-scheme: light;

  --bg: #fff;
  /* The harness sidebar grey, sampled from a running GUI (rgb(249,250,251)). */
  --sidebar-bg: #f9fafb;
  --layer-1: #fff;
  --layer-2: #fff;
  --layer-3: #fff;
  --input-bg: #fff;
  --code-bg: #f9fafb;

  --label-1: #0f1115;
  --label-2: #61666b;
  --label-3: #81858c;
  --label-4: #adb2b8;

  --border-1: #0000000a;
  --border-2: #0000001a;
  --border-3: #0000001f;
  --border-4: #00000029;

  --business: #4176e6;
  --business-ink: #fff;
  --error: #ec1313;
  --error-ink: #fff;
  --success: #22c55e;
  --warn: #f59e0b;

  --hover: #2631480f;
  --hover-danger: #ec13130d;
  --fill-primary: #0f1115;
  --on-primary: #fff;
  --link: #4176e6;

  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --panel-shadow: 0 0 0 0.5px var(--border-4), 0 3px 8px #00000008, 0 0 16px #00000005;

  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Helvetica, Arial, sans-serif;
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;
}

@media (prefers-color-scheme: dark) {
  :root {
    color-scheme: dark;

    --bg: #151517;
    /* The harness sidebar grey in dark mode (rgb(27,27,28)). */
    --sidebar-bg: #1b1b1c;
    --layer-1: #232324;
    --layer-2: #2c2c2e;
    --layer-3: #353638;
    --input-bg: #2c2c2e;
    --code-bg: #1b1b1c;

    --label-1: #f9fafb;
    --label-2: #cfd3d6;
    --label-3: #adb2b8;
    --label-4: #81858c;

    --border-1: #ffffff0f;
    --border-2: #ffffff1f;
    --border-3: #ffffff29;
    --border-4: #fff3;

    --business: #7aaaff;
    --business-ink: #0d1220;
    --error: #f25a5a;
    --error-ink: #1a0d0d;
    --success: #22c55e;
    --warn: #f59e0b;

    --hover: #ffffff14;
    --hover-danger: #f25a5a26;
    --fill-primary: #f9fafb;
    --on-primary: #151517;
    --link: #7aaaff;

    --panel-shadow: 0 0 0 0.5px var(--border-3), 0 3px 8px #00000008, 0 0 16px #00000005;
  }
}

* { box-sizing: border-box; }

/* Components below set `display`, which would otherwise beat the UA rule for
   the `hidden` attribute. */
[hidden] { display: none !important; }

html, body { height: 100%; }

body {
  margin: 0;
  font-family: var(--font);
  font-size: 13.5px;
  line-height: 1.5;
  color: var(--label-1);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  text-autospace: normal;
}

a { color: var(--link); text-decoration: none; }
a:hover { text-decoration: underline; text-underline-offset: 2px; }
button, input { font: inherit; }
h1, h2, h3, p { margin: 0; }

/* ---------- brand ---------- */

.brand {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.01em;
  color: var(--label-1);
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 26px;
  height: 26px;
  flex: none;
  border-radius: var(--radius-sm);
  background: var(--fill-primary);
  color: var(--on-primary);
}

.brand-mark svg { width: 16px; height: 16px; display: block; }

/* ---------- controls ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  height: 32px;
  padding: 0 12px;
  font-size: 13px;
  line-height: 1;
  color: var(--label-1);
  background: transparent;
  border: 0.5px solid var(--border-4);
  border-radius: var(--radius-sm);
  cursor: pointer;
  white-space: nowrap;
  transition: background 0.12s ease, border-color 0.12s ease, color 0.12s ease, opacity 0.12s ease;
  text-decoration: none;
}

.btn:hover { background: var(--hover); text-decoration: none; }
.btn:focus-visible { outline: 2px solid var(--business); outline-offset: 1px; }
.btn:disabled { opacity: 0.5; cursor: default; }

.btn-primary {
  color: var(--on-primary);
  background: var(--fill-primary);
  border-color: transparent;
  font-weight: 500;
}

.btn-primary:hover { background: var(--fill-primary); filter: brightness(1.08); }

.btn-blue {
  color: var(--business-ink);
  background: var(--business);
  border-color: transparent;
  font-weight: 500;
}

.btn-blue:hover { background: var(--business); filter: brightness(1.06); }

.btn-danger {
  color: var(--error-ink);
  background: var(--error);
  border-color: transparent;
  font-weight: 500;
}

.btn-danger:hover { background: var(--error); filter: brightness(1.06); }

.btn-block { width: 100%; height: 36px; }

.icon-btn {
  display: inline-grid;
  place-items: center;
  width: 28px;
  height: 28px;
  padding: 0;
  color: var(--label-3);
  background: transparent;
  border: 0;
  border-radius: var(--radius-sm);
  cursor: pointer;
  text-decoration: none;
  transition: background 0.12s ease, color 0.12s ease;
}

.icon-btn:hover { background: var(--hover); color: var(--label-1); text-decoration: none; }
.icon-btn:focus-visible { outline: 2px solid var(--business); outline-offset: 1px; }

.field { display: flex; flex-direction: column; gap: 6px; min-width: 0; }

.field > label {
  font-size: 12.5px;
  color: var(--label-2);
}

.input {
  width: 100%;
  height: 36px;
  padding: 0 10px;
  color: var(--label-1);
  background: var(--input-bg);
  border: 0.5px solid var(--border-4);
  border-radius: var(--radius-sm);
  outline: none;
  transition: border-color 0.12s ease, box-shadow 0.12s ease;
}

.input::placeholder { color: var(--label-4); }

.input:focus {
  border-color: var(--business);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--business) 18%, transparent);
}

.hint { font-size: 12px; color: var(--label-3); }
.error-text { font-size: 12.5px; color: var(--error); }

.alert {
  display: none;
  padding: 9px 12px;
  font-size: 12.5px;
  color: var(--error);
  background: var(--hover-danger);
  border-radius: var(--radius-sm);
}

.alert.show { display: block; }

.dot {
  width: 7px;
  height: 7px;
  flex: none;
  border-radius: 50%;
  background: var(--label-4);
}

.dot.on { background: var(--success); box-shadow: 0 0 0 3px color-mix(in srgb, var(--success) 20%, transparent); }

/* ---------- auth pages ---------- */

.auth {
  min-height: 100%;
  display: grid;
  place-items: center;
  padding: 40px 20px;
  background: var(--sidebar-bg);
}

.auth-card {
  width: min(372px, 100%);
  padding: 28px;
  background: var(--bg);
  border: 0.5px solid var(--border-2);
  border-radius: var(--radius-lg);
  box-shadow: var(--panel-shadow);
}

.auth-head { display: flex; flex-direction: column; gap: 6px; margin: 22px 0 20px; }
.auth-head h1 { font-size: 18px; font-weight: 600; letter-spacing: -0.01em; }
.auth-head p { font-size: 13px; color: var(--label-3); }

.auth-form { display: flex; flex-direction: column; gap: 14px; }

.auth-foot {
  margin-top: 18px;
  padding-top: 14px;
  border-top: 0.5px solid var(--border-1);
  font-size: 12px;
  color: var(--label-3);
  line-height: 1.6;
}

/* ---------- application shell ---------- */

.topbar {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  gap: 10px;
  height: 52px;
  flex: none;
  padding: 0 20px;
  background: var(--layer-1);
  border-bottom: 0.5px solid var(--border-1);
}

.topbar .spacer { flex: 1 1 auto; }

.topbar .who {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-size: 12.5px;
  color: var(--label-2);
}

.avatar {
  display: grid;
  place-items: center;
  width: 22px;
  height: 22px;
  flex: none;
  border-radius: 50%;
  font-size: 10.5px;
  font-weight: 600;
  color: var(--on-primary);
  background: var(--fill-primary);
  text-transform: uppercase;
}

/* The list page sits on the harness sidebar grey; the cards are surfaces. */
body.app { background: var(--sidebar-bg); }

.page {
  max-width: 1040px;
  margin: 0 auto;
  padding: 28px 20px 56px;
}

.page-head {
  display: flex;
  align-items: baseline;
  gap: 10px;
  margin-bottom: 18px;
}

.page-head h1 {
  margin: 0;
  font-size: 20px;
  font-weight: 600;
  letter-spacing: -0.015em;
}

.page-head .summary {
  font-size: 12.5px;
  color: var(--label-3);
}

.grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.card {
  display: flex;
  flex-direction: column;
  gap: 12px;
  min-width: 0;
  padding: 16px;
  color: inherit;
  background: var(--layer-1);
  border: 0.5px solid var(--border-2);
  border-radius: var(--radius-md);
  text-decoration: none;
  cursor: pointer;
  transition: border-color 0.14s ease, box-shadow 0.14s ease, transform 0.14s ease;
}

.card:hover {
  border-color: var(--border-4);
  box-shadow: var(--panel-shadow);
  transform: translateY(-1px);
  text-decoration: none;
  color: inherit;
}

.card:focus-visible {
  outline: 2px solid var(--business);
  outline-offset: 2px;
}

.card-top {
  display: flex;
  align-items: center;
  gap: 8px;
  min-width: 0;
}

.card-name {
  flex: 1 1 auto;
  min-width: 0;
  font-size: 14.5px;
  font-weight: 600;
  line-height: 20px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.card-arrow {
  flex: none;
  display: grid;
  place-items: center;
  width: 18px;
  height: 18px;
  color: var(--label-4);
  opacity: 0;
  transition: opacity 0.14s ease, color 0.14s ease;
}

.card:hover .card-arrow { opacity: 1; color: var(--label-2); }

.card-lines {
  display: flex;
  flex-direction: column;
  gap: 3px;
  min-width: 0;
}

.card-line {
  display: flex;
  align-items: baseline;
  gap: 8px;
  font-size: 12.5px;
  line-height: 18px;
  min-width: 0;
}

.card-line > span:first-child {
  flex: none;
  width: 34px;
  color: var(--label-4);
}

.card-line > span:last-child {
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  color: var(--label-2);
}

.card-foot {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  color: var(--label-3);
}

.card-foot .online { color: var(--success); }

/* The remove action lives beside the link, not inside it, so the card stays a
   plain anchor (middle-click and keyboard both behave). */
.card-wrap { position: relative; display: flex; min-width: 0; }
.card-wrap > .card { flex: 1 1 auto; }

.card-wrap > .remove {
  position: absolute;
  top: 9px;
  right: 9px;
  display: none;
  padding: 1px 7px;
  font-size: 11.5px;
  line-height: 18px;
  color: var(--label-3);
  background: var(--layer-1);
  border: 0.5px solid var(--border-2);
  border-radius: 6px;
  cursor: pointer;
}

.card-wrap:hover > .remove { display: inline-block; }
.card-wrap > .remove:hover { background: var(--hover-danger); color: var(--error); border-color: transparent; }

/* ---------- empty state ---------- */

.empty {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  margin-top: 12px;
  padding: 44px 24px;
  text-align: center;
  color: var(--label-3);
  background: var(--layer-1);
  border: 0.5px dashed var(--border-3);
  border-radius: var(--radius-lg);
}

.empty .brand-mark { width: 40px; height: 40px; border-radius: var(--radius-md); margin-bottom: 4px; }
.empty h2 { font-size: 15px; font-weight: 600; color: var(--label-1); }
.empty p { font-size: 13px; max-width: 420px; line-height: 1.7; }

.steps {
  display: flex;
  flex-direction: column;
  gap: 6px;
  width: min(440px, 100%);
  margin-top: 8px;
  text-align: left;
}

.step {
  display: flex;
  gap: 9px;
  padding: 9px 11px;
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--label-2);
  background: var(--sidebar-bg);
  border: 0.5px solid var(--border-2);
  border-radius: var(--radius-sm);
}

.step b {
  flex: none;
  display: grid;
  place-items: center;
  width: 18px;
  height: 18px;
  margin-top: 1px;
  font-size: 10.5px;
  font-weight: 600;
  color: var(--label-2);
  background: var(--hover);
  border-radius: 50%;
}

.step code, .empty code {
  padding: 1px 5px;
  font-family: var(--mono);
  font-size: 11.5px;
  color: var(--label-1);
  background: var(--code-bg);
  border: 0.5px solid var(--border-2);
  border-radius: 5px;
}

.toast {
  position: fixed;
  left: 50%;
  bottom: 22px;
  transform: translateX(-50%);
  padding: 8px 14px;
  font-size: 12.5px;
  color: var(--label-1);
  background: var(--layer-2);
  border: 0.5px solid var(--border-2);
  border-radius: var(--radius-sm);
  box-shadow: var(--panel-shadow);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.16s ease;
}

.toast.show { opacity: 1; }

/* Rendered inside the instance frame when the tunnel is down. */
body.embed-body { background: var(--bg); }

.embed-error {
  max-width: 420px;
  margin: 16vh auto 0;
  padding: 0 24px;
  text-align: center;
}

.embed-error-mark {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  margin: 0 auto 14px;
  font-size: 20px;
  font-weight: 700;
  color: var(--warn);
  border: 0.5px solid color-mix(in srgb, var(--warn) 45%, transparent);
  border-radius: 50%;
  background: color-mix(in srgb, var(--warn) 10%, transparent);
}

.embed-error h1 {
  margin: 0 0 8px;
  font-size: 17px;
  font-weight: 600;
  color: var(--label-1);
}

.embed-error p {
  margin: 0 0 18px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--label-3);
}

/* ---------- one instance, full page ---------- */

/* The card list links straight to /i/<id>/, so the harness owns the viewport
   and the only styles that still belong here are the error page above. */

@media (max-width: 900px) {
  .grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 620px) {
  .grid { grid-template-columns: minmax(0, 1fr); }
  .page { padding: 20px 14px 40px; }
  .auth-card { padding: 22px 18px; }
  .topbar { padding: 0 14px; }
  .topbar .who span:last-child { display: none; }
}