/* ── Geist Design System ── */

/* ── Light theme tokens ── */
:root {
  /* Background */
  --background-100: #ffffff;
  --background-200: #fafafa;

  /* Gray */
  --gray-100: #f2f2f2;
  --gray-200: #ebebeb;
  --gray-300: #e6e6e6;
  --gray-400: #eaeaea;
  --gray-500: #c9c9c9;
  --gray-600: #a8a8a8;
  --gray-700: #8f8f8f;
  --gray-800: #7d7d7d;
  --gray-900: #4d4d4d;
  --gray-1000: #171717;

  /* Gray alpha */
  --gray-alpha-100: #0000000d;
  --gray-alpha-200: #00000015;
  --gray-alpha-300: #0000001a;
  --gray-alpha-400: #00000014;
  --gray-alpha-500: #00000036;
  --gray-alpha-600: #0000003d;
  --gray-alpha-700: #00000070;
  --gray-alpha-800: #00000082;
  --gray-alpha-900: #000000b3;
  --gray-alpha-1000: #000000e8;

  /* Blue */
  --blue-100: #f0f7ff;
  --blue-200: #e9f4ff;
  --blue-300: #dfefff;
  --blue-400: #cae7ff;
  --blue-500: #94ccff;
  --blue-600: #48aeff;
  --blue-700: #006bff;
  --blue-800: #0059ec;
  --blue-900: #005ff2;
  --blue-1000: #002359;

  /* Red */
  --red-100: #ffeeef;
  --red-200: #ffe8ea;
  --red-300: #ffe3e4;
  --red-400: #ffd7d6;
  --red-500: #ffb1b3;
  --red-600: #ff676d;
  --red-700: #fc0035;
  --red-800: #ea001d;
  --red-900: #d8001b;
  --red-1000: #47000c;

  /* Amber */
  --amber-100: #fff6de;
  --amber-200: #fff4cf;
  --amber-300: #fff1c1;
  --amber-400: #ffdc73;
  --amber-500: #ffc543;
  --amber-600: #ffa600;
  --amber-700: #ffae00;
  --amber-800: #ff9300;
  --amber-900: #aa4d00;
  --amber-1000: #561900;

  /* Green */
  --green-100: #ecfdec;
  --green-200: #e5fce7;
  --green-300: #d3fad1;
  --green-400: #b9f5bc;
  --green-500: #82eb8d;
  --green-600: #4ce15e;
  --green-700: #28a948;
  --green-800: #279141;
  --green-900: #107d32;
  --green-1000: #003a00;

  /* Teal */
  --teal-100: #defffb;
  --teal-200: #ddfef6;
  --teal-300: #ccf9f1;
  --teal-400: #b1f7ec;
  --teal-500: #52f0db;
  --teal-600: #00e3c4;
  --teal-700: #00ac96;
  --teal-800: #00927f;
  --teal-900: #007f70;
  --teal-1000: #003f34;

  /* Purple */
  --purple-100: #faf0ff;
  --purple-200: #f9f0ff;
  --purple-300: #f6e8ff;
  --purple-400: #f2d9ff;
  --purple-500: #dfa7ff;
  --purple-600: #c979ff;
  --purple-700: #a000f8;
  --purple-800: #8500d1;
  --purple-900: #7d00cc;
  --purple-1000: #2f004e;

  /* Pink */
  --pink-100: #ffe8f6;
  --pink-200: #ffe8f3;
  --pink-300: #ffdfeb;
  --pink-400: #ffd3e1;
  --pink-500: #fdb3cc;
  --pink-600: #f97ea7;
  --pink-700: #f22782;
  --pink-800: #e4106e;
  --pink-900: #c41562;
  --pink-1000: #460523;

  /* ── Semantic aliases ── */
  --paper: var(--background-100);
  --ink: var(--gray-1000);
  --muted: var(--gray-900);
  --chip: var(--gray-100);
  --border: var(--gray-200);
  --hover: var(--gray-100);
  /* gray-100 is the proper tonal surface for code/cards; background-200 is only for subtle separation */
  --code-bg: var(--gray-100);
  --card: var(--background-100);

  /* Elevation (light) */
  --shadow-raised: 0 2px 2px rgba(0, 0, 0, 0.04);
  --shadow-popover: 0 1px 1px rgba(0, 0, 0, 0.02), 0 4px 8px -4px rgba(0, 0, 0, 0.04), 0 16px 24px -8px rgba(0, 0, 0, 0.06);
  --shadow-modal: 0 1px 1px rgba(0, 0, 0, 0.02), 0 8px 16px -4px rgba(0, 0, 0, 0.04), 0 24px 32px -8px rgba(0, 0, 0, 0.06);

  /* Focus ring (light: white gap + blue-700) */
  --focus-ring: 0 0 0 2px #ffffff, 0 0 0 4px #006bff;

  /* Radii */
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-full: 9999px;
}

/* ── Dark theme tokens ── */
html.dark {
  /* Background */
  --background-100: #000000;
  --background-200: #000000;

  /* Gray */
  --gray-100: #1a1a1a;
  --gray-200: #1f1f1f;
  --gray-300: #292929;
  --gray-400: #2e2e2e;
  --gray-500: #454545;
  --gray-600: #878787;
  --gray-700: #8f8f8f;
  --gray-800: #7d7d7d;
  --gray-900: #a0a0a0;
  --gray-1000: #ededed;

  /* Gray alpha */
  --gray-alpha-100: #ffffff12;
  --gray-alpha-200: #ffffff17;
  --gray-alpha-300: #ffffff21;
  --gray-alpha-400: #ffffff24;
  --gray-alpha-500: #ffffff3d;
  --gray-alpha-600: #ffffff82;
  --gray-alpha-700: #ffffff8a;
  --gray-alpha-800: #ffffff78;
  --gray-alpha-900: #ffffff9c;
  --gray-alpha-1000: #ffffffeb;

  /* Blue */
  --blue-100: #06193a;
  --blue-200: #022248;
  --blue-300: #002f62;
  --blue-400: #003674;
  --blue-500: #00418b;
  --blue-600: #0090ff;
  --blue-700: #006efe;
  --blue-800: #005be7;
  --blue-900: #47a8ff;
  --blue-1000: #eaf6ff;

  /* Red */
  --red-100: #330a11;
  --red-200: #440d13;
  --red-300: #5d0e17;
  --red-400: #6f101b;
  --red-500: #88151f;
  --red-600: #f32e40;
  --red-700: #f13242;
  --red-800: #e2162a;
  --red-900: #ff565f;
  --red-1000: #ffe9ed;

  /* Amber */
  --amber-100: #2a1700;
  --amber-200: #361900;
  --amber-300: #502800;
  --amber-400: #5b3000;
  --amber-500: #703e00;
  --amber-600: #ed9a00;
  --amber-700: #ffae00;
  --amber-800: #ff9300;
  --amber-900: #ff9300;
  --amber-1000: #fff3d5;

  /* Green */
  --green-100: #002608;
  --green-200: #00320b;
  --green-300: #003a0e;
  --green-400: #004615;
  --green-500: #006717;
  --green-600: #00952d;
  --green-700: #00ac3a;
  --green-800: #009432;
  --green-900: #00ca50;
  --green-1000: #d8ffe4;

  /* Teal */
  --teal-100: #00231b;
  --teal-200: #002b22;
  --teal-300: #003d34;
  --teal-400: #004035;
  --teal-500: #006354;
  --teal-600: #009e86;
  --teal-700: #00aa95;
  --teal-800: #00927f;
  --teal-900: #00cfb7;
  --teal-1000: #cbfff5;

  /* Purple */
  --purple-100: #290c33;
  --purple-200: #341142;
  --purple-300: #47185e;
  --purple-400: #541a76;
  --purple-500: #642290;
  --purple-600: #9440d5;
  --purple-700: #9440d5;
  --purple-800: #7d2bba;
  --purple-900: #c472fb;
  --purple-1000: #fbecff;

  /* Pink */
  --pink-100: #310d1e;
  --pink-200: #420c25;
  --pink-300: #571032;
  --pink-400: #5d0c34;
  --pink-500: #76063f;
  --pink-600: #ba0056;
  --pink-700: #f12b82;
  --pink-800: #e7006d;
  --pink-900: #ff4d8d;
  --pink-1000: #ffe9f4;

  /* Elevation (dark) */
  --shadow-raised: 0 1px 2px rgba(0, 0, 0, 0.16);
  --shadow-popover: 0 1px 1px rgba(0, 0, 0, 0.02), 0 4px 8px -4px rgba(0, 0, 0, 0.04), 0 16px 24px -8px rgba(0, 0, 0, 0.06);
  --shadow-modal: 0 1px 1px rgba(0, 0, 0, 0.02), 0 8px 16px -4px rgba(0, 0, 0, 0.04), 0 24px 32px -8px rgba(0, 0, 0, 0.06);

  /* Focus ring (dark: black gap + blue-900) */
  --focus-ring: 0 0 0 2px #000000, 0 0 0 4px #47a8ff;
}

/* ── Reset ── */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

/* ── Base ── */
body {
  font-family: 'Geist', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: var(--paper);
  color: var(--ink);
  font-size: 14px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

/* ── Spacing utilities (Geist 4px scale) ── */
.mb-4 { margin-bottom: 16px; }
.mb-6 { margin-bottom: 24px; }
.mb-8 { margin-bottom: 32px; }

/* ── Dark toggle ── */
.dark-toggle {
  background: var(--background-100);
  border: 1px solid var(--gray-alpha-400);
  border-radius: var(--radius-full);
  width: 32px;
  height: 32px;
  cursor: pointer;
  color: var(--ink);
  font-family: inherit;
  font-size: 13px;
  font-weight: 500;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 150ms cubic-bezier(0.175, 0.885, 0.32, 1.1), border-color 150ms cubic-bezier(0.175, 0.885, 0.32, 1.1), color 150ms cubic-bezier(0.175, 0.885, 0.32, 1.1);
}

.dark-toggle:hover  { background: var(--gray-100); }
.dark-toggle:active { background: var(--gray-200); }

.dark-toggle:focus-visible {
  outline: none;
  box-shadow: var(--focus-ring);
}

.dark-toggle .icon-moon { display: none; }
.dark-toggle .icon-sun  { display: block; }
html.dark .dark-toggle .icon-moon { display: block; }
html.dark .dark-toggle .icon-sun  { display: none; }

/* ── Buttons ── */
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--ink);
  color: var(--paper);
  border: 1px solid transparent;
  border-radius: var(--radius-full);
  padding: 0 24px;
  height: 48px;
  font-size: 16px;
  font-weight: 500;
  font-family: inherit;
  cursor: pointer;
  text-decoration: none;
  white-space: nowrap;
  transition: opacity 150ms cubic-bezier(0.175, 0.885, 0.32, 1.1);
}

.btn-primary:hover  { opacity: 0.82; }
.btn-primary:active { opacity: 0.72; }

.btn-primary:disabled,
.btn-primary[aria-disabled="true"] {
  background: var(--gray-100);
  color: var(--gray-700);
  cursor: not-allowed;
  opacity: 1;
}

.btn-primary:focus-visible {
  outline: none;
  box-shadow: var(--focus-ring);
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--background-100);
  color: var(--ink);
  border: 1px solid var(--gray-alpha-400);
  border-radius: var(--radius-full);
  padding: 0 24px;
  height: 48px;
  font-size: 16px;
  font-weight: 500;
  font-family: inherit;
  cursor: pointer;
  text-decoration: none;
  white-space: nowrap;
  transition: background 150ms cubic-bezier(0.175, 0.885, 0.32, 1.1);
}

.btn-secondary:hover  { background: var(--hover); }
.btn-secondary:active { background: var(--gray-200); }
.btn-secondary:focus-visible { outline: none; box-shadow: var(--focus-ring); }

/* ── Language switcher ── */
.language-switcher {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  height: 40px;
  padding: 3px;
  border: 1px solid var(--gray-alpha-400);
  border-radius: var(--radius-full);
  background: var(--background-100);
}

.language-switcher a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 38px;
  height: 32px;
  padding: 0 10px;
  border-radius: var(--radius-full);
  color: var(--muted);
  font-size: 13px;
  font-weight: 500;
  line-height: 1;
  text-decoration: none;
  white-space: nowrap;
}

.language-switcher a:hover {
  color: var(--ink);
  background: var(--gray-100);
}

.language-switcher a[aria-current="page"] {
  color: var(--paper);
  background: var(--ink);
}

.language-switcher-footer {
  height: 32px;
}

.language-switcher-footer a {
  min-width: 28px;
  height: 24px;
  font-size: 12px;
}

.section-heading {
  font-size: 24px;
  font-weight: 600;
  line-height: 32px;
  color: var(--ink);
  letter-spacing: -0.96px;
  margin-bottom: 24px;
}

.section-body {
  font-size: 14px;
  color: var(--muted);
  line-height: 24px;
}

.section-body + .section-body {
  margin-top: 16px;
}

.section-body strong {
  color: var(--ink);
  font-weight: 500;
}

/* ── Hero ── */
.hero {
  padding: 64px 40px;
  max-width: 1040px;
  margin: 0 auto;
}

.hero-inner {
  margin: 0 auto;
  text-align: center;
}

.hero-icon {
  width: 96px;
  height: 96px;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 24px;
  overflow: hidden;
}

.hero-icon img {
  display: block;
}

/* .hero-icon:hover img {
  content: url("/icon-animated.svg");
} */

html.dark .hero-icon {
  border: 1px solid var(--gray-alpha-400);
}

.hero-title {
  font-size: 40px;
  font-weight: 600;
  letter-spacing: -2.4px;
  line-height: 48px;
  color: var(--ink);
  margin-bottom: 16px;
}

.hero-title code {
  font-family: 'Geist Mono', 'SF Mono', 'Fira Code', Consolas, monospace;
  font-size: 38px;
}


.hero-actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}

.tree-body {
  line-height: 1.6;
  white-space: pre;
  overflow-x: auto;
  color: var(--window-text);
}

.tree-body .indent { padding-left: 0; }

/* ── Comparison table ── */
.compare-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
  margin-top: 24px;
}

.compare-table th {
  text-align: left;
  font-size: 12px;
  font-weight: 500;
  text-transform: uppercase;
  color: var(--muted);
  padding: 8px 16px 8px 0;
  border-bottom: 1px solid var(--border);
}

.compare-table td {
  padding: 12px 16px 12px 0;
  border-bottom: 1px solid var(--border);
  color: var(--ink);
  vertical-align: top;
}

.compare-table td:first-child {
  font-family: 'Geist Mono', 'SF Mono', 'Fira Code', Consolas, monospace;
  font-size: 12px;
  white-space: nowrap;
  padding-right: 24px;
}

.compare-table td:nth-child(2) {
  color: var(--muted);
  padding-right: 24px;
}

.compare-table tr.highlight td { font-weight: 500; }
.compare-table tr.highlight td:nth-child(2) { font-weight: 400; }

/* ── Command window ── */
.command-body {
  color: var(--window-text);
  display: block;
  line-height: 1.7;
  overflow-x: auto;
  white-space: pre;
}

/* ── Two-column layout ── */
.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: start;
}

/* ── Feature cards grid ── */
.feat-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.feat-card {
  background: var(--chip);
  border-radius: var(--radius-md);
  padding: 16px;
  overflow: hidden;
}

html.dark .feat-card {
  background: var(--gray-300);
}

.feat-card-media {
  --window-bg: #171717;
  --window-border: #2a2a2a;
  --window-muted: #6b6b6b;
  --window-text: #b3b3b3;
  --window-text-strong: #e5e5e5;
  background: var(--window-bg);
  border: 1px solid var(--window-border);
  border-radius: var(--radius-md);
  font-family: 'Geist Mono', 'SF Mono', 'Fira Code', Consolas, monospace;
  font-size: 12px;
  line-height: 1.65;
  color: var(--window-muted);
  margin-bottom: 16px;
}

.feat-card-media__titlebar {
  display: flex;
  align-items: center;
  gap: 6px;
  background: var(--window-bg);
  padding: 9px 12px;
  border-bottom: 1px solid var(--window-border);
}

.feat-card-media__dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  flex-shrink: 0;
}

.feat-card-media__dot:nth-child(1) { background: #ff5f57; }
.feat-card-media__dot:nth-child(2) { background: #febc2e; }
.feat-card-media__dot:nth-child(3) { background: #28c840; }

.feat-card-media__body {
  padding: 10px 12px;
}

.feat-card-media .hi  { color: var(--window-text-strong); }
.feat-card-media .dim { color: var(--window-muted); opacity: 1; }
.feat-card-media .prompt { color: #777; }

.feat-card-title {
  font-size: 14px;
  font-weight: 600;
  line-height: 20px;
  letter-spacing: -0.28px;
  color: var(--ink);
  margin-bottom: 4px;
}

.feat-card-desc {
  font-size: 13px;
  color: var(--muted);
  line-height: 1.55;
}

/* ── Workflow section ── */
.workflow-row {
  display: flex;
  align-items: stretch;
  gap: 16px;
}

.workflow-step {
  flex: 1;
  min-width: 0;
  background: var(--chip);
  border-radius: var(--radius-md);
  padding: 24px;
}

html.dark .workflow-step {
  background: var(--gray-300);
}

.workflow-step__title {
  font-size: 16px;
  font-weight: 600;
  line-height: 24px;
  letter-spacing: -0.32px;
  color: var(--ink);
  margin-bottom: 8px;
}

.workflow-step__desc {
  font-size: 13px;
  color: var(--muted);
  line-height: 1.55;
}

.workflow-arrow {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2px;
  width: 56px;
  flex-shrink: 0;
}

.workflow-arrow__label {
  font-size: 12px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--muted);
  white-space: nowrap;
}

.workflow-arrow__glyph {
  color: var(--gray-600);
  font-size: 18px;
  line-height: 1;
}

.workflow-loop {
  margin-top: 24px;
}

/* ── Page format block ── */
.ui-window .fm-body {
  display: block;
  line-height: 1.6;
  color: var(--window-text);
  white-space: pre;
  overflow-x: auto;
}

/* ── Section ── */
.section {
  padding: 64px 40px;
  max-width: 1040px;
  margin: 0 auto;
}

/* ── CTA block ── */
.cta-wrap {
  max-width: 1040px;
  margin: 0 auto;
  padding: 64px 40px;
}

/* ── CTA docs link ── */
.cta-docs {
  margin-top: 24px;
  text-align: center;
}

.cta-docs a {
  color: var(--muted);
  text-decoration: none;
  transition: color 150ms cubic-bezier(0.175, 0.885, 0.32, 1.1);
}

.cta-docs a:hover { color: var(--ink); }

/* ── Footer ── */
footer {
  padding: 28px 40px;
  max-width: 1040px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}

.footer-left {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  /* gap: 4px; */
  min-width: 0;
}

.footer-logo {
  font-family: 'Geist Mono', 'SF Mono', 'Fira Code', Consolas, monospace;
  font-size: 14px;
  font-weight: 600;
  color: var(--ink);
  text-decoration: none;
}

.footer-meta {
  font-size: 12px;
  color: var(--muted);
}

.footer-meta a {
  color: var(--muted);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.footer-meta a:hover { color: var(--ink); }


.footer-right {
  display: flex;
  align-items: center;
  gap: 16px;
}

.footer-link {
  font-size: 13px;
  font-weight: 500;
  color: var(--muted);
  text-decoration: none;
  transition: color 150ms cubic-bezier(0.175, 0.885, 0.32, 1.1);
}

.footer-link:hover { color: var(--ink); }

/* ── Inline code ── */
code {
  font-family: 'Geist Mono', 'SF Mono', 'Fira Code', Consolas, monospace;
}

code.inline {
  font-family: 'Geist Mono', 'SF Mono', 'Fira Code', Consolas, monospace;
  font-size: .875em;
  background: var(--chip);
  padding: 1px 5px;
  border-radius: 4px;
  color: var(--ink);
}

/* Screen reader only helper for SEO / Accessibility */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

/* ── FAQ Section Style ── */
.faq-list {
  display: flex;
  flex-direction: column;
  margin-top: 24px;
  border-top: 1px solid var(--border);
}

.faq-item {
  border-bottom: 1px solid var(--border);
}

.faq-q {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  padding: 16px 0;
  font-size: 14px;
  font-weight: 500;
  color: var(--ink);
  cursor: pointer;
  list-style: none;
  user-select: none;
}

.faq-q::-webkit-details-marker { display: none; }

.faq-q::after {
  content: '+';
  font-size: 20px;
  font-weight: 400;
  color: var(--muted);
  flex-shrink: 0;
  transition: transform 200ms cubic-bezier(0.175, 0.885, 0.32, 1.1);
}

.faq-item[open] > .faq-q::after {
  transform: rotate(45deg);
}

.faq-a {
  font-size: 14px;
  color: var(--muted);
  line-height: 1.6;
  padding-bottom: 20px;
}

/* ── Responsive ── */
@media (max-width: 900px) {
  .feat-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .hero            { padding: 48px 16px 40px; }
  .section         { padding: 48px 16px; }
  .cta-wrap        { padding: 32px 16px; }
  footer           { padding: 24px 16px; }
  .two-col         { grid-template-columns: 1fr; gap: 32px; }
  .hero-title      { font-size: 32px; line-height: 40px; }
  .hero-title code { font-size: 30px; }
  .section-heading { font-size: 20px; line-height: 26px; }
  .hero-contrast   { flex-direction: column; gap: 16px; }
  .workflow-row    { flex-direction: column; }
  .workflow-arrow  { flex-direction: row; width: auto; gap: 6px; padding: 4px 0; }
  .workflow-arrow__glyph { transform: rotate(90deg); }
}

@media (max-width: 540px) {
  .feat-grid { grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion: reduce) {
  .btn-primary, .btn-secondary, .dark-toggle, .footer-link, .language-switcher a { transition: none; }
}

/* ── Hero contrast layout ── */
.hero-ownership {
  font-size: 16px;
  color: var(--ink);
  margin-bottom: 24px;
}

.hero-tagline {
  font-size: 18px;
  color: var(--muted);
  margin-bottom: 40px;
}

.hero-contrast {
  display: flex;
  gap: 24px;
  width: 100%;
  margin: 0 auto 40px;
  text-align: left;
}

.contrast-col {
  flex: 1;
  min-width: 0;
}


.ui-window {
  --window-bg: #171717;
  --window-titlebar: #171717;
  --window-border: #2a2a2a;
  --window-muted: #6b6b6b;
  --window-text: #b3b3b3;
  --window-text-strong: #e5e5e5;
  --window-blue: #79c0ff;
  --window-purple: #d2a8ff;
  --window-green: #7ee787;
  --window-inline-bg: #1e2a1e;
  border-radius: var(--radius-md);
  border: 1px solid var(--window-border);
  box-shadow: 0 4px 24px rgba(0,0,0,0.35);
  font-family: 'Geist Mono', 'SF Mono', 'Fira Code', Consolas, monospace;
  font-size: 13px;
  background: var(--window-bg);
  overflow: hidden;
}

/* ── ui-window sub-elements ── */
.ui-window__titlebar {
  display: flex;
  align-items: center;
  gap: 6px;
  background: var(--window-titlebar);
  padding: 9px 12px;
  border-bottom: 1px solid var(--window-border);
}

.ui-window__dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  flex-shrink: 0;
}

/* ── Terminal variant ── */
.ui-window--terminal {
  height: 100%;
}
.ui-window__dot:nth-child(1) { background: #ff5f57; }
.ui-window__dot:nth-child(2) { background: #febc2e; }
.ui-window__dot:nth-child(3) { background: #28c840; }

.ui-window__title {
  flex: 1;
  text-align: center;
  color: var(--window-muted);
  letter-spacing: 0.02em;
  margin-right: 29px;
}

.contrast-col--before .ui-window__title { color: #ff5f57; }
.contrast-col--after  .ui-window__title { color: #28c840; }

.ui-window__body {
  padding: 16px;
}

.ui-window--terminal .ui-window__body {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.ui-window--terminal .tree-body,
.ui-window--terminal .fm-body,
.ui-window--terminal .command-body {
  display: block;
}

.terminal-line {
  display: flex;
  gap: 8px;
  line-height: 1.6;
}

.terminal-prompt {
  color: var(--window-blue);
  flex-shrink: 0;
  user-select: none;
}

.terminal-sigil {
  color: var(--window-purple);
  flex-shrink: 0;
  user-select: none;
}

.terminal-line--user { color: var(--window-text-strong); }
.terminal-line--ai   { color: var(--window-text); }
.terminal-line--dim  { color: var(--window-muted); font-style: italic; }

.terminal-code {
  background: var(--window-inline-bg);
  color: var(--window-green);
  padding: 1px 5px;
  border-radius: var(--radius-sm);
  white-space: nowrap;
}

.window-muted { color: var(--window-muted); }
.window-strong { color: var(--window-text-strong); }
.window-key { color: var(--window-blue); font-weight: 500; }
.window-string { color: var(--window-green); }
.window-section {
  color: var(--window-purple);
  display: block;
  font-weight: 700;
  margin-top: 2px;
}