/* Quilo browser-tool workspace
 * Shared desktop shell for /tools/* and /equation/*.
 * The feature pages keep their existing IDs and behaviour; this layer only
 * provides the navigation, task canvas and result rail used across them.
 */

:root {
  --tool-bg: #ffffff;
  --tool-surface: #ffffff;
  --tool-surface-muted: #f7f9fc;
  --tool-text: #101828;
  --tool-muted: #667085;
  --tool-line: #d8dee9;
  --tool-line-strong: #c7ced9;
  --tool-accent: #2862eb;
  --tool-accent-soft: #eef4ff;
  --tool-danger: #c4320a;
  --tool-radius: 8px;
  --tool-header-h: 72px;
}

[data-theme="dark"] {
  --tool-bg: #101318;
  --tool-surface: #151920;
  --tool-surface-muted: #1b2029;
  --tool-text: #f5f7fa;
  --tool-muted: #a8b0bd;
  --tool-line: #303744;
  --tool-line-strong: #424b5b;
  --tool-accent: #6f9cff;
  --tool-accent-soft: #1c2a47;
  --tool-danger: #ff8a65;
}

body.q-tool-workspace {
  min-width: 0;
  background: var(--tool-bg);
  color: var(--tool-text);
}

.q-tool-workspace .landing-bg {
  display: none;
}

.q-tool-shell {
  display: grid;
  grid-template-columns: 244px minmax(520px, 1fr) 316px;
  min-height: calc(100vh - var(--tool-header-h));
  border-bottom: 1px solid var(--tool-line);
  background: var(--tool-bg);
}

.q-tool-nav,
.q-tool-result-rail {
  min-width: 0;
  background: var(--tool-surface);
}

.q-tool-nav {
  position: sticky;
  top: var(--tool-header-h);
  align-self: start;
  height: calc(100vh - var(--tool-header-h));
  overflow: auto;
  border-right: 1px solid var(--tool-line);
  padding: 26px 18px 32px;
}

.q-tool-nav__brand {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 36px;
  margin: 0 8px 26px;
}

.q-tool-nav__brand strong {
  font-size: 15px;
  font-weight: 720;
  letter-spacing: -0.02em;
}

.q-tool-nav__brand a {
  color: var(--tool-accent);
  font-size: 12px;
  font-weight: 650;
  text-decoration: none;
}

.q-tool-nav__group + .q-tool-nav__group {
  margin-top: 24px;
}

.q-tool-nav__label {
  margin: 0 10px 8px;
  color: var(--tool-muted);
  font-size: 11px;
  font-weight: 720;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.q-tool-nav__links {
  display: grid;
  gap: 2px;
}

.q-tool-nav__link {
  display: flex;
  align-items: center;
  gap: 10px;
  min-height: 39px;
  padding: 8px 10px;
  border: 1px solid transparent;
  border-radius: 6px;
  color: var(--tool-text);
  font-size: 13px;
  font-weight: 570;
  line-height: 1.3;
  text-decoration: none;
  transition: background-color 140ms ease, border-color 140ms ease, color 140ms ease;
}

.q-tool-nav__link:hover {
  border-color: var(--tool-line);
  background: var(--tool-surface-muted);
}

.q-tool-nav__link[aria-current="page"] {
  border-color: #cbd9ff;
  background: var(--tool-accent-soft);
  color: var(--tool-accent);
  font-weight: 690;
}

[data-theme="dark"] .q-tool-nav__link[aria-current="page"] {
  border-color: #334b7b;
}

.q-tool-nav__icon {
  display: grid;
  place-items: center;
  width: 19px;
  height: 19px;
  flex: 0 0 19px;
  color: currentColor;
}

.q-tool-nav__icon svg {
  width: 18px;
  height: 18px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.q-tool-stage {
  min-width: 0;
  padding: 38px clamp(28px, 4vw, 62px) 72px;
  background: var(--tool-bg);
}

.q-tool-stage > main,
.q-tool-stage > .landing-shell,
.q-tool-stage > .wrap {
  width: 100%;
  max-width: 920px;
  min-width: 0;
  margin: 0 auto;
  padding: 0;
}

.q-tool-stage main > .section,
.q-tool-stage main > header {
  padding: 0;
  border: 0;
}

.q-tool-stage .tool-page-head,
.q-tool-stage main > header {
  max-width: 760px;
  margin: 0 0 34px;
}

.q-tool-stage .tool-page-head h1,
.q-tool-stage main > header h1 {
  margin: 0;
  color: var(--tool-text);
  font-size: clamp(28px, 2.2vw, 34px);
  font-weight: 720;
  letter-spacing: -0.045em;
  line-height: 1.12;
}

.q-tool-stage .tool-page-head p,
.q-tool-stage main > header p {
  max-width: 700px;
  margin: 14px 0 0;
  color: var(--tool-muted);
  font-size: 15px;
  line-height: 1.7;
}

/* Replace the old large rounded dashboard cards with open task surfaces. */
.q-tool-stage .tool-card,
.q-tool-stage main > .card,
.q-tool-stage .feature-card {
  padding: 26px 0;
  border: 0;
  border-top: 1px solid var(--tool-line);
  border-radius: 0;
  background: transparent;
  box-shadow: none;
}

.q-tool-stage main > .card:first-of-type {
  border-top: 0;
  padding-top: 0;
}

.q-tool-stage .tool-card h2,
.q-tool-stage .tool-card h3,
.q-tool-stage main > .card h2 {
  color: var(--tool-text);
  letter-spacing: -0.025em;
}

.q-tool-stage .drop-z,
.q-tool-stage .drop,
.q-tool-stage [id$="Drop"][role="button"],
.q-tool-stage [id$="drop"][role="button"] {
  min-height: 152px;
  display: grid;
  place-content: center;
  gap: 5px;
  padding: 28px;
  border: 1px dashed var(--tool-line-strong) !important;
  border-radius: var(--tool-radius) !important;
  background: var(--tool-surface-muted);
  color: var(--tool-muted);
  text-align: center;
  cursor: pointer;
  transition: border-color 140ms ease, background-color 140ms ease;
}

.q-tool-stage .drop-z:hover,
.q-tool-stage .drop:hover,
.q-tool-stage [id$="Drop"][role="button"]:hover,
.q-tool-stage [id$="drop"][role="button"]:hover,
.q-tool-stage [role="button"]:focus-visible {
  border-color: var(--tool-accent) !important;
  background: var(--tool-accent-soft);
  outline: 0;
}

.q-tool-stage :is(input, select, textarea).tool-input,
.q-tool-stage main > .card textarea,
.q-tool-stage main > .card input[type="text"] {
  min-height: 44px;
  border: 1px solid var(--tool-line-strong);
  border-radius: 6px;
  background: var(--tool-surface);
  color: var(--tool-text);
  box-shadow: none;
}

.q-tool-stage :is(input, select, textarea):focus {
  border-color: var(--tool-accent);
  outline: 3px solid color-mix(in srgb, var(--tool-accent) 16%, transparent);
  outline-offset: 0;
}

.q-tool-stage :is(.btn, .btn-primary, .btn-ghost, .btn-lg) {
  min-height: 42px;
  border-radius: 6px;
  box-shadow: none;
  font-size: 14px;
  font-weight: 680;
}

.q-tool-stage .btn-primary,
.q-tool-stage .btn.btn-primary {
  border-color: var(--tool-accent);
  background: var(--tool-accent);
  color: #fff;
}

.q-tool-stage .btn-ghost {
  border-color: var(--tool-line-strong);
  background: var(--tool-surface);
  color: var(--tool-text);
}

.q-tool-stage .quick-jump,
.q-tool-stage .conv-tabs,
.q-tool-stage .mode-tabs {
  border-radius: 6px;
  box-shadow: none;
}

.q-tool-stage .quick-jump button,
.q-tool-stage .conv-tabs button,
.q-tool-stage .mode-tabs button {
  border-radius: 5px;
}

.q-tool-stage .feature-grid.tools-index-grid {
  grid-template-columns: minmax(0, 1fr);
  max-width: 720px;
}

.q-tool-stage .feature-card {
  display: grid;
  grid-template-columns: auto 1fr;
  column-gap: 18px;
  align-items: start;
}

.q-tool-stage .feature-card .feature-ico {
  grid-row: 1 / span 3;
}

.q-tool-stage .feature-card h3,
.q-tool-stage .feature-card p,
.q-tool-stage .feature-card .feature-tag {
  grid-column: 2;
}

.q-tool-result-rail {
  position: sticky;
  top: var(--tool-header-h);
  align-self: start;
  height: calc(100vh - var(--tool-header-h));
  overflow: auto;
  border-left: 1px solid var(--tool-line);
  padding: 30px 24px 36px;
}

.q-tool-result-rail__head {
  padding-bottom: 18px;
  border-bottom: 1px solid var(--tool-line);
}

.q-tool-result-rail__head h2 {
  margin: 0;
  color: var(--tool-text);
  font-size: 17px;
  font-weight: 710;
  letter-spacing: -0.025em;
}

.q-tool-result-rail__head p {
  margin: 7px 0 0;
  color: var(--tool-muted);
  font-size: 12px;
  line-height: 1.55;
}

.q-tool-result-rail__empty {
  display: grid;
  gap: 12px;
  padding: 28px 0;
  color: var(--tool-muted);
  font-size: 13px;
  line-height: 1.65;
}

.q-tool-result-rail__empty svg {
  width: 30px;
  height: 30px;
  fill: none;
  stroke: var(--tool-line-strong);
  stroke-width: 1.5;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.q-tool-result-rail__privacy {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 4px;
  color: var(--tool-muted);
  font-size: 12px;
}

.q-tool-result-rail__privacy::before {
  width: 7px;
  height: 7px;
  border-radius: 999px;
  background: #12b76a;
  content: "";
}

.q-tool-result-rail__host {
  display: grid;
  gap: 16px;
  padding-top: 20px;
}

.q-tool-result-rail__host:empty {
  display: none;
}

.q-tool-result-rail .tool-result,
.q-tool-result-rail .result {
  width: 100%;
  min-width: 0;
  padding: 0;
  border: 0;
  border-radius: 0;
  background: transparent;
  box-shadow: none;
}

.q-tool-result-rail .stat-grid {
  grid-template-columns: 1fr;
}

.q-tool-result-rail img,
.q-tool-result-rail canvas {
  max-width: 100%;
  height: auto;
}

.q-tool-result-rail--active .q-tool-result-rail__empty {
  display: none;
}

.q-tool-asset-status {
  display: none;
  align-items: center;
  gap: 8px;
  margin-top: 16px;
  color: var(--tool-muted);
  font-size: 12px;
}

.q-tool-asset-status[aria-hidden="false"] {
  display: flex;
}

.q-tool-asset-status::before {
  width: 12px;
  height: 12px;
  border: 2px solid var(--tool-line-strong);
  border-top-color: var(--tool-accent);
  border-radius: 50%;
  content: "";
  animation: q-tool-spin 700ms linear infinite;
}

@keyframes q-tool-spin { to { transform: rotate(360deg); } }

.q-tool-workspace .ui-site-footer {
  margin-top: 0;
}

html.embed .q-tool-shell {
  grid-template-columns: minmax(0, 1fr);
  min-height: 0;
}

html.embed .q-tool-nav,
html.embed .q-tool-result-rail {
  display: none;
}

html.embed .q-tool-stage {
  padding: 18px;
}

/* Keep the current tablet QA stable without designing a separate mobile UI. */
@media (max-width: 1180px) {
  .q-tool-shell {
    grid-template-columns: 218px minmax(0, 1fr);
  }

  .q-tool-result-rail {
    display: none;
  }
}

@media (max-width: 760px) {
  .q-tool-shell {
    display: block;
  }

  .q-tool-nav {
    position: static;
    height: auto;
    overflow: visible;
    border-right: 0;
    border-bottom: 1px solid var(--tool-line);
    padding: 14px 16px;
  }

  .q-tool-nav__brand,
  .q-tool-nav__label {
    display: none;
  }

  .q-tool-nav__group + .q-tool-nav__group {
    margin-top: 8px;
  }

  .q-tool-nav__links {
    display: flex;
    overflow-x: auto;
    gap: 6px;
    scrollbar-width: none;
  }

  .q-tool-nav__links::-webkit-scrollbar { display: none; }

  .q-tool-nav__link {
    flex: 0 0 auto;
    white-space: nowrap;
  }

  .q-tool-stage {
    padding: 28px 18px 56px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .q-tool-nav__link,
  .q-tool-stage [role="button"] {
    transition: none;
  }

  .q-tool-asset-status::before {
    animation: none;
  }
}