:root {
  color-scheme: dark;
  --bg: #080a0d;
  --panel: #101419;
  --panel-2: #161b21;
  --line: #29313a;
  --text: #f4f6f7;
  --muted: #87919c;
  --cyan: #62dac7;
  --violet: #b6a2ff;
  --amber: #ffbc69;
  --blue: #88b8ff;
  --sidebar: 272px;
  --sans: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --mono: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
}
* { box-sizing: border-box; }
[hidden] { display: none !important; }
html, body { width: 100%; min-width: 320px; min-height: 100%; margin: 0; background: var(--bg); color: var(--text); }
body { font-family: var(--sans); overflow: hidden; }
button, a { color: inherit; font: inherit; }
button { border: 0; }
.app-shell { display: grid; grid-template-columns: var(--sidebar) minmax(0,1fr); height: 100vh; }
.sidebar {
  z-index: 20; display: flex; flex-direction: column; min-width: 0; padding: 20px 15px 16px;
  border-right: 1px solid var(--line); background: #0c0f13;
}
.brand {
  display: flex; align-items: center; gap: 12px; margin: 0 6px 29px; color: inherit; text-decoration: none;
}
.brand-mark {
  width: 38px; height: 38px; display: grid; place-items: center; border: 1px solid #3c474f; border-radius: 10px;
  background: linear-gradient(145deg, #1d262c, #101519); color: var(--cyan); font: 700 12px var(--mono);
}
.brand strong, .brand small { display: block; }
.brand strong { font-size: 18px; font-weight: 760; letter-spacing: -.025em; }
.brand small { margin-top: 3px; color: var(--muted); font: 650 9.5px var(--mono); letter-spacing: .16em; }
.primary-nav { display: grid; gap: 5px; }
.nav-label {
  margin: 16px 10px 5px; color: #7d8994; font: 750 10px var(--mono);
  letter-spacing: .14em; text-transform: uppercase;
}
.nav-sub-label {
  margin: 7px 10px 2px; color: #a2adb7; font: 750 10px var(--mono);
  letter-spacing: .08em; text-transform: uppercase;
}
.nav-sub-label::before { content: "└ "; color: #46515c; }
.nav-item {
  display: grid; grid-template-columns: 39px minmax(0,1fr); gap: 11px; align-items: center; width: 100%;
  padding: 10px 11px; border: 1px solid transparent; border-radius: 10px; background: transparent; color: var(--muted);
  cursor: pointer; text-align: left;
}
.nav-item:hover { background: #12171c; color: var(--text); }
.nav-item.active { border-color: #2e3a42; background: #171d23; color: var(--text); }
.nav-icon {
  width: 38px; height: 38px; display: grid; place-items: center; border-radius: 8px;
  background: #11161b; color: #9aa6b1; font: 750 10.5px var(--mono);
}
.nav-item.active .nav-icon { background: rgba(98,218,199,.1); color: var(--cyan); }
.nav-item strong, .nav-item small { display: block; }
.nav-item strong { font-size: 15px; font-weight: 760; letter-spacing: -.01em; }
.nav-item small { margin-top: 3px; color: #84909a; font: 550 11px var(--mono); }
.sidebar-footer {
  display: grid; grid-template-columns: 9px minmax(0,1fr); gap: 9px; align-items: center; margin-top: auto; padding: 12px 10px;
  border-top: 1px solid var(--line); color: var(--muted);
}
.privacy-dot { width: 7px; height: 7px; border-radius: 50%; background: #66de91; box-shadow: 0 0 10px rgba(102,222,145,.55); }
.sidebar-footer strong, .sidebar-footer small { display: block; }
.sidebar-footer strong { color: #d0d6db; font-size: 12px; font-weight: 750; }.sidebar-footer small { margin-top: 3px; font: 10px var(--mono); }
.main-shell { min-width: 0; height: 100vh; display: grid; grid-template-rows: 69px minmax(0,1fr); overflow: hidden; }
.topbar {
  display: flex; align-items: center; gap: 14px; padding: 0 20px; border-bottom: 1px solid var(--line);
  background: rgba(10,13,17,.94); backdrop-filter: blur(12px);
}
.page-identity { min-width: 0; }
.page-identity p { margin: 0 0 4px; color: var(--muted); font: 650 9px var(--mono); letter-spacing: .13em; }
.page-identity h1 { margin: 0; overflow: hidden; font-size: 17px; letter-spacing: -.02em; text-overflow: ellipsis; white-space: nowrap; }
.topbar-actions { display: flex; gap: 7px; margin-left: auto; }
.shell-button {
  display: inline-flex; align-items: center; justify-content: center; min-height: 34px; padding: 7px 11px;
  border: 1px solid var(--line); border-radius: 7px; background: var(--panel-2); color: #c8d0d6;
  cursor: pointer; font-size: 11px; font-weight: 650; text-decoration: none;
}
.shell-button:hover { border-color: #4c5965; color: var(--text); }
.shell-button.primary { background: var(--text); border-color: var(--text); color: #101419; }
.menu-button {
  display: none; width: 35px; height: 35px; border: 1px solid var(--line); border-radius: 7px;
  background: var(--panel); cursor: pointer;
}
.home-view {
  min-height: 0; overflow: auto; padding: clamp(30px,5vw,74px); background:
    radial-gradient(circle at 84% 10%, rgba(100,79,180,.14), transparent 32rem),
    radial-gradient(circle at 4% 90%, rgba(48,145,132,.09), transparent 30rem), var(--bg);
}
.hero {
  display: grid; grid-template-columns: minmax(0,1fr) 220px; gap: 48px; align-items: end;
  max-width: 1200px; margin: 0 auto 42px;
}
.eyebrow { margin: 0 0 15px; color: var(--cyan); font: 650 10px var(--mono); letter-spacing: .16em; }
.hero h2 { margin: 0; font-size: clamp(43px,6.1vw,82px); line-height: .98; letter-spacing: -.06em; }
.hero h2 em { color: #a4aeb8; font-style: normal; font-weight: 450; }
.hero-copy { max-width: 690px; margin: 23px 0 0; color: var(--muted); font-size: 16px; line-height: 1.6; }
.hero-stat { padding: 20px; border: 1px solid var(--line); border-radius: 12px; background: rgba(17,21,26,.75); }
.hero-stat span, .hero-stat small { display: block; color: var(--muted); font: 10px var(--mono); }
.hero-stat strong { display: block; margin: 13px 0 9px; font-size: 46px; line-height: 1; letter-spacing: -.06em; }
.category-stack { display: grid; gap: 42px; max-width: 1200px; margin: 0 auto; }
.category-block {
  position: relative; padding: 0; border: 0; background: transparent;
}
.category-heading {
  display: flex; align-items: flex-start; justify-content: space-between; gap: 30px;
  margin-bottom: 14px; padding: 0 0 17px 17px; border-bottom: 1px solid var(--line);
  border-left: 2px solid var(--blue);
}
.category-block:nth-child(2) .category-heading { border-left-color: var(--cyan); }
.category-index {
  margin: 0 0 9px; color: #7f8b96; font: 700 9px var(--mono); letter-spacing: .14em;
}
.category-heading h3 { margin: 0; font-size: 31px; font-weight: 760; letter-spacing: -.045em; }
.category-heading p:last-child { max-width: 700px; margin: 8px 0 0; color: #929da7; font-size: 13px; line-height: 1.5; }
.category-count {
  flex: 0 0 auto; padding: 7px 10px; border: 1px solid #34404a; border-radius: 999px;
  background: rgba(18,23,28,.78); color: #a0abb5; font: 650 9px var(--mono); text-transform: uppercase;
}
.subcategory-block {
  display: grid; grid-template-columns: 170px minmax(0,1fr); gap: 18px;
  padding: 16px 0; border-bottom: 1px solid rgba(42,49,58,.72);
}
.subcategory-block:last-child { border-bottom: 0; padding-bottom: 0; }
.subcategory-block + .subcategory-block { margin-top: 0; }
.subcategory-heading {
  display: block; margin: 4px 0 0;
}
.subcategory-heading span { display: block; color: var(--text); font-size: 16px; font-weight: 760; }
.subcategory-heading small { display: block; margin-top: 6px; color: #77838e; font: 10px/1.5 var(--mono); }
.subcategory-heading small::before { display: none; }
.tool-grid { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 12px; }
.tool-grid.single { grid-template-columns: minmax(0,1fr); }
.tool-grid.single .tool-card { min-height: 158px; }
.tool-card {
  position: relative; display: grid; grid-template-columns: 44px minmax(0,1fr) auto; grid-template-rows: auto 1fr;
  gap: 16px 18px; min-height: 190px; padding: 19px; overflow: hidden; border: 1px solid var(--line); border-radius: 12px;
  background: linear-gradient(145deg, rgba(255,255,255,.022), transparent 45%), rgba(16,20,25,.84);
  color: inherit; cursor: pointer; text-align: left; transition: transform .16s ease, border-color .16s ease;
}
.tool-card:hover { transform: translateY(-2px); border-color: #4a5662; }
.tool-card::after { content: ""; position: absolute; right: -40px; bottom: -55px; width: 180px; height: 180px; border-radius: 50%; opacity: .07; background: currentColor; filter: blur(8px); }
.tool-card.cyan { color: var(--cyan); }.tool-card.violet { color: var(--violet); }
.tool-card.amber { color: var(--amber); }.tool-card.blue { color: var(--blue); }
.tool-number { color: #626d77; font: 10px var(--mono); }
.tool-glyph {
  grid-row: 2; width: 44px; height: 44px; display: grid; place-items: center; align-self: end;
  border: 1px solid currentColor; border-radius: 9px; font: 650 10px var(--mono);
}
.tool-copy { grid-column: 2; grid-row: 1/3; align-self: end; color: var(--text); }
.tool-copy strong, .tool-copy small { display: block; }
.tool-copy strong { margin-bottom: 11px; font-size: 21px; letter-spacing: -.03em; }
.tool-copy small { max-width: 460px; color: var(--muted); font-size: 12px; line-height: 1.55; }
.tool-arrow { z-index: 1; grid-column: 3; grid-row: 1/3; align-self: end; font-size: 25px; }
.home-footer {
  display: flex; flex-wrap: wrap; gap: 8px 22px; max-width: 1200px; margin: 27px auto 0; color: #64707a;
  font: 9px var(--mono); letter-spacing: .12em;
}
.tool-view { position: relative; min-height: 0; background: #080a0d; }
#tool-frame { display: block; width: 100%; height: 100%; border: 0; background: #090b0e; }
.frame-status {
  position: absolute; z-index: 5; top: 10px; right: 13px; display: flex; align-items: center; gap: 7px;
  padding: 6px 9px; border: 1px solid var(--line); border-radius: 999px; background: rgba(15,19,23,.94);
  color: var(--muted); font: 9px var(--mono); pointer-events: none; transition: opacity .25s ease;
}
.frame-status i { width: 6px; height: 6px; border-radius: 50%; background: var(--amber); }
.frame-status.ready { opacity: 0; }.frame-status.ready i { background: #66de91; }
.sidebar-scrim { display: none; }
@media (max-width: 900px) {
  body { overflow: auto; }
  .app-shell { display: block; min-height: 100vh; }
  .sidebar {
    position: fixed; inset: 0 auto 0 0; width: min(290px,85vw); transform: translateX(-102%);
    transition: transform .2s ease; box-shadow: 20px 0 60px rgba(0,0,0,.45);
  }
  .sidebar.open { transform: translateX(0); }
  .sidebar-scrim { position: fixed; z-index: 15; inset: 0; display: block; opacity: 0; pointer-events: none; background: rgba(0,0,0,.55); transition: opacity .2s ease; }
  .sidebar-scrim.visible { opacity: 1; pointer-events: auto; }
  .main-shell { height: 100vh; }
  .menu-button { display: grid; place-items: center; }
  .home-view { padding: 30px 18px 55px; }
  .hero { grid-template-columns: 1fr; gap: 22px; }
  .hero-stat { display: none; }
  .tool-grid { grid-template-columns: 1fr; }
  .subcategory-block { grid-template-columns: 1fr; gap: 10px; }
  .subcategory-heading { margin-top: 0; }
}
@media (max-width: 560px) {
  .topbar { padding-inline: 11px; }
  .shell-button:first-child { display: none; }
  .page-identity p { display: none; }
  .page-identity h1 { font-size: 14px; }
  .hero h2 { font-size: 45px; }
  .tool-card { grid-template-columns: 38px minmax(0,1fr) auto; min-height: 190px; padding: 16px; }
  .tool-glyph { width: 38px; height: 38px; }
  .tool-copy strong { font-size: 18px; }
  .category-heading { display: block; }
  .category-count { display: inline-flex; margin-top: 12px; }
}