:root {
  color-scheme: dark;
  --ink: #f1f3ff;
  --paper: #090a0f;
  --panel: #12141c;
  --muted: #989cac;
  --line: #292c38;
  --orange: #b8ff5a;
  --blue: #78a7ff;
  --green: #7bf0c3;
  --red: #ff8296;
  --amber: #ffcc66;
}

html {
  background: #090a0f;
}

body.stackhal-site {
  background:
    radial-gradient(circle at 88% 7%, rgba(120, 83, 255, .19), transparent 31rem),
    radial-gradient(circle at 7% 25%, rgba(49, 197, 174, .11), transparent 27rem),
    linear-gradient(rgba(255, 255, 255, .026) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, .026) 1px, transparent 1px),
    #090a0f;
  background-attachment: fixed;
  background-size: auto, auto, 40px 40px, 40px 40px, auto;
  color: var(--ink);
  font-family: Inter, "SF Pro Display", "Segoe UI", sans-serif;
}

.stackhal-site ::selection {
  background: #b8ff5a;
  color: #0a0b0f;
}

.stackhal-site .site-header {
  border-top: 2px solid transparent;
  border-image: linear-gradient(90deg, #b8ff5a, #78a7ff, #c985ff) 1;
}

.stackhal-site .topbar {
  min-height: 72px;
  padding-block: 12px;
  border-bottom-color: rgba(255, 255, 255, .09);
  background: rgba(9, 10, 15, .78);
  box-shadow: 0 14px 40px rgba(0, 0, 0, .28);
  backdrop-filter: blur(20px);
}

.stackhal-site .brand {
  gap: 12px;
  font-size: 17px;
  letter-spacing: -.035em;
}

.stackhal-site .brand-mark {
  position: relative;
  width: 39px;
  height: 39px;
  border: 1px solid #b8ff5a;
  border-radius: 50%;
  background: #11140f;
  box-shadow: 0 0 24px rgba(184, 255, 90, .16);
  color: #b8ff5a;
  font-size: 10px;
}

.stackhal-site .brand-mark::after {
  content: "";
  position: absolute;
  right: -4px;
  bottom: 2px;
  width: 7px;
  height: 7px;
  border: 2px solid #090a0f;
  border-radius: 50%;
  background: #b8ff5a;
}

.stackhal-site .brand-signal {
  color: #7e8291;
  font-size: 9px;
  letter-spacing: .12em;
}

.stackhal-site .primary-nav a,
.stackhal-site .tool-menu a,
.stackhal-site .tool-menu summary,
.stackhal-site .language-switch {
  color: #d4d7e4;
  font-weight: 650;
}

.stackhal-site .primary-nav a:hover,
.stackhal-site .tool-menu a:hover {
  color: #b8ff5a;
}

.stackhal-site .tool-menu summary,
.stackhal-site .language-switch {
  border-color: #343744;
  background: rgba(20, 22, 30, .78);
}

.stackhal-site .tool-menu-panel {
  border-color: #393c49;
  background: rgba(14, 15, 21, .98);
  box-shadow: 0 28px 70px rgba(0, 0, 0, .5);
}

.stackhal-site .tool-context-bar {
  border-bottom-color: #262936;
  background: rgba(13, 14, 20, .96);
}

.stackhal-site .hero,
.stackhal-site .report-shell,
.stackhal-site .tool-page-shell {
  max-width: 1180px;
}

.stackhal-site .toolbox-hero {
  position: relative;
  min-height: 690px;
  padding-top: 92px;
}

.stackhal-site .toolbox-hero::before {
  content: "STACK / HAL";
  position: absolute;
  top: 40px;
  right: 22px;
  color: rgba(255, 255, 255, .035);
  font-size: clamp(70px, 11vw, 156px);
  font-weight: 900;
  line-height: .8;
  letter-spacing: -.09em;
  pointer-events: none;
}

.stackhal-site .toolbox-hero > .eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 25px;
  color: #b8ff5a;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 10px;
  letter-spacing: .14em;
}

.stackhal-site .toolbox-hero > .eyebrow::before {
  content: "";
  width: 24px;
  height: 1px;
  background: #b8ff5a;
  box-shadow: 0 0 10px #b8ff5a;
}

.stackhal-site .toolbox-hero > h1 {
  position: relative;
  z-index: 1;
  max-width: 790px;
  font-size: clamp(56px, 7.7vw, 102px);
  font-weight: 720;
  line-height: .91;
  letter-spacing: -.075em;
  text-wrap: balance;
}

.stackhal-site .toolbox-hero > .lede {
  position: relative;
  z-index: 1;
  max-width: 620px;
  margin-top: 32px;
  color: #a7aab7;
  font-size: 18px;
  line-height: 1.65;
}

.toolbox-orbit {
  position: absolute;
  top: 115px;
  right: 20px;
  width: 340px;
  height: 340px;
  border: 1px solid rgba(137, 120, 255, .28);
  border-radius: 50%;
  box-shadow: inset 0 0 70px rgba(100, 77, 238, .06), 0 0 90px rgba(100, 77, 238, .09);
}

.toolbox-orbit::before,
.toolbox-orbit::after {
  content: "";
  position: absolute;
  inset: 50%;
  border-radius: 50%;
  transform: translate(-50%, -50%);
}

.toolbox-orbit::before {
  width: 225px;
  height: 225px;
  border: 1px dashed rgba(184, 255, 90, .24);
}

.toolbox-orbit::after {
  width: 115px;
  height: 115px;
  border: 1px solid rgba(120, 167, 255, .32);
  background: radial-gradient(circle, rgba(120, 167, 255, .15), transparent 65%);
}

.toolbox-orbit strong {
  position: absolute;
  top: 50%;
  left: 50%;
  z-index: 1;
  color: #f3f5ff;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 20px;
  letter-spacing: -.08em;
  transform: translate(-50%, -50%);
}

.toolbox-orbit span {
  position: absolute;
  padding: 5px 8px;
  border: 1px solid #343744;
  border-radius: 2px;
  background: #11131a;
  color: #9ea2b1;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 9px;
  box-shadow: 0 8px 20px rgba(0, 0, 0, .34);
}

.toolbox-orbit span:nth-child(1) { top: 15px; left: 138px; }
.toolbox-orbit span:nth-child(2) { top: 88px; right: -16px; }
.toolbox-orbit span:nth-child(3) { right: 18px; bottom: 58px; }
.toolbox-orbit span:nth-child(4) { bottom: 5px; left: 105px; }
.toolbox-orbit span:nth-child(5) { top: 120px; left: -24px; }

.stackhal-site .toolbox-status {
  position: relative;
  z-index: 1;
  gap: 0;
  margin-top: 36px;
}

.stackhal-site .toolbox-status li {
  padding: 8px 14px;
  border-color: #30333f;
  border-right: 0;
  border-radius: 0;
  background: rgba(16, 18, 25, .68);
  color: #8f93a1;
  letter-spacing: .06em;
}

.stackhal-site .toolbox-status li:first-child {
  border-radius: 3px 0 0 3px;
}

.stackhal-site .toolbox-status li:last-child {
  border-right: 1px solid #30333f;
  border-radius: 0 3px 3px 0;
}

.stackhal-site .tool-catalog {
  position: relative;
  z-index: 2;
  gap: 58px;
  margin-top: 100px;
}

.stackhal-site .tool-category-header {
  margin-bottom: 17px;
}

.stackhal-site .tool-category-header h2 {
  color: #8d91a1;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 9px;
  letter-spacing: .17em;
}

.stackhal-site .tool-category-header::after {
  background: linear-gradient(90deg, #343744, transparent);
}

.stackhal-site .tool-grid {
  gap: 12px;
}

.stackhal-site .tool-card {
  position: relative;
  isolation: isolate;
  min-height: 285px;
  padding: 30px;
  overflow: hidden;
  border: 1px solid #2b2e39;
  border-radius: 4px;
  background: linear-gradient(145deg, rgba(22, 24, 33, .96), rgba(14, 16, 23, .96));
  box-shadow: 0 18px 55px rgba(0, 0, 0, .25);
  transition: border-color 220ms ease, transform 220ms ease, box-shadow 220ms ease;
}

.stackhal-site .tool-card::before {
  content: "";
  position: absolute;
  z-index: -1;
  top: -85px;
  right: -70px;
  width: 220px;
  height: 220px;
  border: 1px solid rgba(120, 167, 255, .13);
  border-radius: 50%;
  background: radial-gradient(circle, rgba(120, 167, 255, .12), transparent 67%);
  transition: transform 350ms ease, opacity 350ms ease;
}

.stackhal-site .tool-card:nth-child(even)::before {
  border-color: rgba(184, 255, 90, .12);
  background: radial-gradient(circle, rgba(184, 255, 90, .09), transparent 67%);
}

.stackhal-site .tool-card::after {
  content: "↗";
  position: absolute;
  top: 25px;
  right: 27px;
  color: #5e6270;
  font-size: 20px;
  transition: color 180ms ease, transform 180ms ease;
}

.stackhal-site .tool-card:hover {
  border-color: #727788;
  box-shadow: 0 24px 70px rgba(0, 0, 0, .38), 0 0 40px rgba(120, 167, 255, .05);
  transform: translateY(-5px);
}

.stackhal-site .tool-card:hover::before {
  transform: scale(1.18);
}

.stackhal-site .tool-card:hover::after {
  color: #b8ff5a;
  transform: translate(2px, -2px);
}

.stackhal-site .tool-number {
  color: #b8ff5a;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 10px;
}

.stackhal-site .tool-card h3 {
  position: relative;
  z-index: 1;
  max-width: 400px;
  margin: 56px 0 12px;
  font-size: clamp(25px, 3vw, 34px);
  font-weight: 650;
  letter-spacing: -.045em;
}

.stackhal-site .tool-card p {
  position: relative;
  z-index: 1;
  max-width: 480px;
  color: #9da1af;
  font-size: 14px;
  line-height: 1.6;
}

.stackhal-site .tool-card strong {
  color: #d8dbe7;
  font-size: 11px;
  letter-spacing: .04em;
}

.stackhal-site .tool-card-wide {
  min-height: 260px;
  background:
    linear-gradient(100deg, rgba(20, 22, 30, .98), rgba(23, 20, 38, .94)),
    #151720;
}

.stackhal-site .tool-card-wide::before {
  top: -180px;
  right: 5%;
  width: 470px;
  height: 470px;
  border-color: rgba(201, 133, 255, .16);
  background: radial-gradient(circle, rgba(201, 133, 255, .13), transparent 64%);
}

.stackhal-site .toolbox-principles {
  gap: 0;
  margin-top: 110px;
  border-block: 1px solid #2b2e39;
}

.stackhal-site .toolbox-principles > div {
  min-height: 210px;
  padding: 28px;
  border-top: 0;
  border-right: 1px solid #2b2e39;
}

.stackhal-site .toolbox-principles > div:last-child {
  border-right: 0;
}

.stackhal-site .toolbox-principles b {
  color: #b8ff5a;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

.stackhal-site .toolbox-principles h2 {
  margin-top: 40px;
  font-size: 19px;
  font-weight: 650;
}

.stackhal-site .toolbox-principles p {
  color: #969aa8;
}

.stackhal-site .ui-panel,
.stackhal-site .audit-form,
.stackhal-site .content-card,
.stackhal-site .code-card,
.stackhal-site .table-wrap,
.stackhal-site .metrics,
.stackhal-site .help-dialog,
.stackhal-site .geo-check,
.stackhal-site .crawler-grid > div {
  border-color: #2b2e39;
  border-radius: 4px;
  background: rgba(17, 19, 27, .94);
  box-shadow: 0 22px 60px rgba(0, 0, 0, .28);
}

.stackhal-site .ui-button,
.stackhal-site button,
.stackhal-site input,
.stackhal-site select,
.stackhal-site textarea {
  border-radius: 3px;
}

.stackhal-site .ui-button-primary,
.stackhal-site .audit-form button,
.stackhal-site .lead-row button {
  background: #b8ff5a;
  color: #0b0d0a;
}

.stackhal-site .tool-page-intro h1,
.stackhal-site .tool-intro h1,
.stackhal-site .report-head h1,
.stackhal-site .geo-home h1 {
  font-family: Inter, "SF Pro Display", "Segoe UI", sans-serif;
  font-weight: 680;
  letter-spacing: -.055em;
}

.stackhal-site footer {
  margin-top: 55px;
  border-top: 1px solid #252832;
  background: rgba(8, 9, 13, .78);
  color: #7f8390;
}

@media (max-width: 980px) {
  .toolbox-orbit {
    width: 280px;
    height: 280px;
    opacity: .55;
  }

  .toolbox-orbit::before { width: 185px; height: 185px; }
  .toolbox-orbit::after { width: 95px; height: 95px; }
}

@media (max-width: 800px) {
  .stackhal-site .toolbox-hero {
    min-height: 0;
    padding-top: 58px;
  }

  .stackhal-site .toolbox-hero::before {
    top: 28px;
    right: 12px;
    font-size: 80px;
  }

  .toolbox-orbit {
    display: none;
  }

  .stackhal-site .toolbox-hero > h1 {
    font-size: clamp(50px, 14.5vw, 72px);
  }

  .stackhal-site .tool-catalog {
    margin-top: 72px;
  }

  .stackhal-site .toolbox-principles > div {
    border-right: 0;
    border-bottom: 1px solid #2b2e39;
  }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { transition-duration: .01ms !important; }
}