:root {
  --tools-bg: #05070b;
  --tools-panel: rgba(13, 19, 29, .72);
  --tools-line: rgba(148, 163, 184, .18);
  --tools-text: #f4f8ff;
  --tools-muted: #9eabc0;
  --tools-cyan: #52e5d5;
  --tools-violet: #9b87ff;
}

.tools-zone {
  min-height: 100vh;
  overflow: hidden;
  color: var(--tools-text);
  background:
    radial-gradient(circle at 10% 6%, rgba(51, 216, 194, .14), transparent 28rem),
    radial-gradient(circle at 88% 18%, rgba(124, 92, 255, .16), transparent 30rem),
    linear-gradient(180deg, #070b11, var(--tools-bg) 46%, #080b11);
  isolation: isolate;
}

.tools-zone::before {
  position: fixed;
  inset: 0;
  z-index: -1;
  background-image: linear-gradient(rgba(255,255,255,.025) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.025) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: linear-gradient(to bottom, #000, transparent 86%);
  content: "";
  pointer-events: none;
}

.tools-shell { width: min(1180px, calc(100% - 40px)); margin-inline: auto; }
.tools-hero { padding: 104px 0 76px; border-bottom: 1px solid var(--tools-line); }
.tools-hero__grid { display: grid; grid-template-columns: minmax(0, 1.08fr) minmax(340px, .92fr); align-items: center; gap: 76px; }
.tools-badges { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 18px; }
.tools-badges span { padding: 7px 11px; border: 1px solid rgba(82,229,213,.32); border-radius: 999px; color: #cafff8; background: rgba(82,229,213,.08); font: 700 11px/1 system-ui; letter-spacing: .12em; }
.tools-kicker { margin: 0 0 12px; color: var(--tools-cyan); font-size: 12px; font-weight: 800; letter-spacing: .16em; text-transform: uppercase; }
.tools-hero h1, .tool-hero h1 { margin: 0; font-size: clamp(46px, 7vw, 86px); line-height: .96; letter-spacing: -.055em; }
.tools-hero h1 em { color: transparent; background: linear-gradient(100deg, #fff 10%, var(--tools-cyan) 48%, var(--tools-violet)); background-clip: text; font-style: normal; }
.tools-lead { max-width: 720px; margin: 26px 0 10px; color: #e6edf8; font-size: clamp(19px, 2vw, 25px); line-height: 1.45; }
.tools-copy { max-width: 650px; margin: 0 0 30px; color: var(--tools-muted); font-size: 16px; line-height: 1.75; }
.tools-button { display: inline-flex; min-height: 48px; align-items: center; justify-content: center; gap: 9px; padding: 12px 18px; border: 1px solid transparent; border-radius: 12px; font-weight: 750; line-height: 1.2; text-align: center; transition: transform .2s ease, border-color .2s ease, background .2s ease, box-shadow .2s ease; }
.tools-button svg { width: 18px; height: 18px; flex: 0 0 auto; }
.tools-button:hover { transform: translateY(-2px); }
.tools-button--primary { color: #03100f; background: linear-gradient(115deg, #8df7e8, #53dfd0 56%, #a89aff); box-shadow: 0 14px 44px rgba(66,217,199,.18); }
.tools-button--ghost { color: var(--tools-text); border-color: var(--tools-line); background: rgba(255,255,255,.045); }

.tools-core { position: relative; min-height: 420px; display: grid; place-items: center; border: 1px solid var(--tools-line); border-radius: 32px; background: linear-gradient(145deg, rgba(255,255,255,.07), rgba(255,255,255,.018)); box-shadow: inset 0 1px rgba(255,255,255,.09), 0 40px 90px rgba(0,0,0,.38); backdrop-filter: blur(18px); }
.tools-core::before { position: absolute; inset: 11%; border-radius: 50%; background: radial-gradient(circle, rgba(82,229,213,.13), transparent 68%); filter: blur(12px); content: ""; }
.tools-core__orbit { position: absolute; width: 270px; aspect-ratio: 1; border: 1px solid rgba(82,229,213,.28); border-radius: 50%; animation: tools-spin 24s linear infinite; }
.tools-core__orbit::before, .tools-core__orbit::after { position: absolute; inset: 28px; border: 1px dashed rgba(155,135,255,.28); border-radius: 50%; content: ""; }
.tools-core__orbit::after { inset: 65px; border-style: solid; }
.tools-core__orbit span { position: absolute; width: 9px; height: 9px; border-radius: 50%; background: var(--tools-cyan); box-shadow: 0 0 20px var(--tools-cyan); }
.tools-core__orbit span:nth-child(1) { top: -5px; left: 50%; }
.tools-core__orbit span:nth-child(2) { right: 14px; bottom: 44px; background: var(--tools-violet); }
.tools-core__orbit span:nth-child(3) { left: 9px; bottom: 58px; }
.tools-core__center { position: relative; display: grid; width: 132px; aspect-ratio: 1; place-content: center; text-align: center; border: 1px solid rgba(255,255,255,.2); border-radius: 50%; background: rgba(7,11,17,.84); box-shadow: 0 0 60px rgba(82,229,213,.16); }
.tools-core__center small { color: var(--tools-muted); font-size: 9px; letter-spacing: .22em; }
.tools-core__center strong { font-size: 29px; letter-spacing: .04em; }
.tools-core__center em { color: var(--tools-cyan); font-size: 9px; font-style: normal; letter-spacing: .18em; }
.tools-core__stats { position: absolute; right: 20px; bottom: 20px; left: 20px; display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; }
.tools-core__stats span { padding: 10px; color: var(--tools-muted); border: 1px solid var(--tools-line); border-radius: 10px; background: rgba(3,7,12,.48); font-size: 11px; text-align: center; }
.tools-core__stats b { display: block; color: #fff; font-size: 15px; }

.tools-content { padding-block: 84px; }
.tools-heading { display: flex; align-items: end; justify-content: space-between; gap: 24px; margin-bottom: 30px; }
.tools-heading h2, .tools-manifesto h2, .tool-explanation h2, .tool-related h2 { margin: 0; font-size: clamp(29px, 4vw, 46px); letter-spacing: -.035em; }
.tools-filters { display: flex; flex-wrap: wrap; gap: 8px; }
.tools-filters button { min-height: 42px; padding: 9px 14px; color: var(--tools-muted); border: 1px solid var(--tools-line); border-radius: 999px; background: rgba(255,255,255,.035); font-weight: 700; }
.tools-filters button[aria-pressed="true"] { color: #06100f; border-color: transparent; background: var(--tools-cyan); }
.tools-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px; }
.tool-card { position: relative; min-height: 300px; padding: 26px; overflow: hidden; color: inherit; border: 1px solid var(--tools-line); border-radius: 20px; background: linear-gradient(145deg, rgba(255,255,255,.065), rgba(255,255,255,.022)); box-shadow: inset 0 1px rgba(255,255,255,.06); animation: tools-rise .55s both; animation-delay: var(--tool-delay); transition: transform .25s ease, border-color .25s ease, box-shadow .25s ease; }
.tool-card::after { position: absolute; width: 150px; height: 150px; right: -70px; bottom: -80px; border-radius: 50%; background: rgba(82,229,213,.13); filter: blur(34px); content: ""; transition: transform .3s ease; }
.tool-card:hover { transform: translateY(-6px); border-color: rgba(82,229,213,.4); box-shadow: 0 24px 60px rgba(0,0,0,.34); }
.tool-card:hover::after { transform: scale(1.4); }
.tool-card__number { position: absolute; top: 22px; right: 22px; color: rgba(255,255,255,.26); font: 700 12px/1 ui-monospace, monospace; }
.tool-card__icon, .tool-hero__icon { display: grid; width: 54px; height: 54px; place-items: center; margin-bottom: 36px; color: var(--tools-cyan); border: 1px solid rgba(82,229,213,.28); border-radius: 15px; background: rgba(82,229,213,.08); }
.tool-card__icon svg, .tool-hero__icon svg { width: 25px; height: 25px; }
.tool-card small { color: var(--tools-cyan); font-weight: 800; letter-spacing: .1em; text-transform: uppercase; }
.tool-card h3 { margin: 9px 0 10px; font-size: 23px; letter-spacing: -.02em; }
.tool-card p { margin: 0; color: var(--tools-muted); line-height: 1.6; }
.tool-card__open { position: absolute; right: 26px; bottom: 24px; left: 26px; display: flex; align-items: center; gap: 8px; font-weight: 750; }
.tool-card__open svg { width: 17px; }
.tools-manifesto { display: grid; grid-template-columns: .8fr 1.2fr; gap: 60px; margin-top: 56px; padding: 34px; border: 1px solid var(--tools-line); border-radius: 22px; background: rgba(255,255,255,.035); }
.tools-manifesto > p { margin: 0; color: var(--tools-muted); font-size: 17px; line-height: 1.75; }

.tool-hero { padding: 70px 0 58px; border-bottom: 1px solid var(--tools-line); }
.tool-breadcrumb { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; margin-bottom: 44px; color: var(--tools-muted); font-size: 13px; }
.tool-breadcrumb a:hover { color: var(--tools-cyan); }
.tool-breadcrumb b { max-width: 100%; overflow: hidden; color: #fff; text-overflow: ellipsis; white-space: nowrap; }
.tool-hero__title { display: grid; grid-template-columns: 72px 1fr; align-items: start; gap: 24px; }
.tool-hero__title .tool-hero__icon { width: 66px; height: 66px; margin: 0; }
.tool-hero h1 { font-size: clamp(38px, 6vw, 68px); }
.tool-hero__title > div > p:last-child { max-width: 720px; margin: 16px 0 0; color: var(--tools-muted); font-size: 18px; line-height: 1.65; }
.tool-main { padding-block: 52px 86px; }
.tool-console { overflow: hidden; border: 1px solid rgba(82,229,213,.24); border-radius: 24px; background: linear-gradient(145deg, rgba(15,22,33,.94), rgba(7,11,17,.94)); box-shadow: 0 30px 100px rgba(0,0,0,.38), inset 0 1px rgba(255,255,255,.06); }
.tool-console__bar { display: flex; min-height: 52px; align-items: center; justify-content: space-between; padding: 0 22px; color: var(--tools-muted); border-bottom: 1px solid var(--tools-line); background: rgba(255,255,255,.025); font: 700 11px/1 ui-monospace, monospace; letter-spacing: .1em; }
.tool-console__bar span span, .tool-console__bar i { color: var(--tools-cyan); font-style: normal; }
.tool-form-grid, .estimate-layout { display: grid; grid-template-columns: minmax(0, .9fr) minmax(360px, 1.1fr); gap: 1px; background: var(--tools-line); }
.tool-form { display: grid; align-content: start; gap: 18px; padding: 30px; background: #0a1018; }
.tool-field { display: grid; min-width: 0; gap: 8px; color: #dce5f3; font-size: 14px; font-weight: 700; }
.tool-field small, .tool-note { color: var(--tools-muted); font-size: 12px; font-weight: 500; line-height: 1.55; }
.tool-field input, .tool-field select, .tool-field textarea, .estimate-row input { width: 100%; min-width: 0; min-height: 48px; padding: 11px 13px; color: #fff; border: 1px solid rgba(148,163,184,.24); border-radius: 11px; outline: 0; background: rgba(255,255,255,.045); }
.tool-field textarea { resize: vertical; }
.tool-field input:focus, .tool-field select:focus, .tool-field textarea:focus, .estimate-row input:focus { border-color: var(--tools-cyan); box-shadow: 0 0 0 3px rgba(82,229,213,.1); }
.tool-field select option { color: #111827; }
.tool-field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.tool-result { position: relative; min-width: 0; padding: 34px; overflow: hidden; background: radial-gradient(circle at 92% 8%, rgba(155,135,255,.13), transparent 40%), #080d14; }
.tool-result__pulse { position: absolute; top: 26px; right: 26px; width: 9px; height: 9px; border-radius: 50%; background: var(--tools-cyan); box-shadow: 0 0 18px var(--tools-cyan); animation: tools-pulse 2.1s ease-in-out infinite; }
.tool-result > small { color: var(--tools-cyan); font-size: 11px; font-weight: 800; letter-spacing: .14em; text-transform: uppercase; }
.tool-result h2 { margin: 12px 0 14px; font-size: clamp(30px, 5vw, 54px); letter-spacing: -.045em; }
.tool-result p { color: var(--tools-muted); line-height: 1.7; }
.tool-result dl { display: grid; gap: 8px; margin: 24px 0; }
.tool-result dl div { display: flex; align-items: center; justify-content: space-between; gap: 20px; padding: 10px 0; border-bottom: 1px solid var(--tools-line); }
.tool-result dt { color: var(--tools-muted); }
.tool-result dd { margin: 0; color: #fff; font-weight: 750; }
.tool-result__actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 22px; }

.estimate-layout { grid-template-columns: minmax(0, 1.35fr) minmax(330px, .65fr); }
.estimate-rows { display: grid; gap: 10px; }
.estimate-row { display: grid; grid-template-columns: 24px minmax(130px, 1.5fr) minmax(74px, .55fr) minmax(84px, .65fr) minmax(110px, 1fr) 40px; align-items: center; gap: 8px; }
.estimate-row > span { color: var(--tools-muted); text-align: center; }
.estimate-row button { display: grid; width: 38px; height: 38px; place-items: center; color: #ff9ba4; border: 1px solid rgba(255,110,125,.2); border-radius: 9px; background: rgba(255,110,125,.06); }
.estimate-row button svg { width: 16px; }
.estimate-preview, .ad-preview { max-width: 100%; margin: 18px 0; padding: 16px; overflow: auto; color: #dbe7f3; border: 1px solid var(--tools-line); border-radius: 12px; background: rgba(0,0,0,.22); font: 500 13px/1.7 ui-monospace, monospace; white-space: pre-wrap; overflow-wrap: anywhere; }

.quiz-card { min-height: 380px; padding: clamp(26px, 5vw, 58px); background: #090f17; }
.quiz-card h2 { max-width: 780px; margin: 20px 0 30px; font-size: clamp(28px, 5vw, 52px); letter-spacing: -.035em; }
.quiz-progress { height: 4px; overflow: hidden; border-radius: 99px; background: rgba(255,255,255,.08); }
.quiz-progress span { display: block; height: 100%; border-radius: inherit; background: linear-gradient(90deg, var(--tools-cyan), var(--tools-violet)); transition: width .3s ease; }
.quiz-options, .guess-options { display: grid; grid-template-columns: repeat(4, minmax(0,1fr)); gap: 10px; }
.quiz-options button, .guess-options button { min-height: 56px; padding: 12px; color: #eef5ff; border: 1px solid var(--tools-line); border-radius: 13px; background: rgba(255,255,255,.045); font-weight: 750; }
.quiz-options button:hover, .guess-options button:hover { border-color: var(--tools-cyan); background: rgba(82,229,213,.08); }
.guess-options { grid-template-columns: repeat(3, minmax(0,1fr)); }
.guess-options button.is-right { border-color: #62e7a6; background: rgba(72,205,138,.13); }
.guess-options button.is-wrong { border-color: #ff8b96; background: rgba(255,102,118,.12); }
.guess-explain { margin-top: 24px; padding: 20px; border: 1px solid var(--tools-line); border-radius: 15px; background: rgba(255,255,255,.035); }
.guess-explain strong { color: var(--tools-cyan); font-size: 19px; }
.quiz-spark { width: 44px; height: 44px; color: var(--tools-cyan); }

.tool-explanation { display: grid; grid-template-columns: .72fr 1.28fr; gap: 70px; padding: 80px 0; }
.tool-explanation__copy { color: var(--tools-muted); font-size: 16px; line-height: 1.82; }
.tool-explanation__copy p:first-child { margin-top: 0; }
.tool-explanation__copy h3 { margin: 28px 0 8px; color: #fff; font-size: 22px; }
.tool-explanation__copy li { margin: 7px 0; }
.tool-related { display: flex; align-items: center; justify-content: space-between; gap: 36px; padding: 34px; border: 1px solid var(--tools-line); border-radius: 22px; background: linear-gradient(120deg, rgba(82,229,213,.07), rgba(155,135,255,.06)); }
.tool-related p { max-width: 580px; color: var(--tools-muted); }
.tool-related > div:last-child { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: 10px; }

@keyframes tools-spin { to { transform: rotate(360deg); } }
@keyframes tools-pulse { 50% { transform: scale(1.5); opacity: .45; } }
@keyframes tools-rise { from { transform: translateY(12px); opacity: 0; } }

@media (max-width: 900px) {
  .tools-hero__grid, .tool-form-grid, .estimate-layout, .tools-manifesto, .tool-explanation { grid-template-columns: 1fr; }
  .tools-hero__grid { gap: 44px; }
  .tools-core { min-height: 360px; }
  .tools-grid { grid-template-columns: repeat(2, minmax(0,1fr)); }
  .tool-form-grid, .estimate-layout { gap: 0; }
  .tool-result { border-top: 1px solid var(--tools-line); }
  .tool-explanation { gap: 24px; }
  .tool-related { align-items: flex-start; flex-direction: column; }
  .tool-related > div:last-child { justify-content: flex-start; }
}

@media (max-width: 620px) {
  .tools-shell { width: min(100% - 28px, 1180px); }
  .tools-hero { padding: 64px 0 48px; }
  .tools-hero h1 { font-size: clamp(43px, 14vw, 62px); }
  .tools-core { min-height: 318px; border-radius: 23px; }
  .tools-core__orbit { width: 220px; }
  .tools-core__stats { right: 12px; bottom: 12px; left: 12px; }
  .tools-content { padding-block: 58px; }
  .tools-heading { align-items: flex-start; flex-direction: column; }
  .tools-filters { width: 100%; flex-wrap: nowrap; overflow-x: auto; padding-bottom: 5px; scrollbar-width: none; }
  .tools-filters button { flex: 0 0 auto; }
  .tools-grid { grid-template-columns: 1fr; }
  .tool-card { min-height: 340px; padding-bottom: 78px; }
  .tools-manifesto { gap: 18px; padding: 24px; }
  .tool-hero { padding: 48px 0 40px; }
  .tool-breadcrumb { margin-bottom: 32px; }
  .tool-hero__title { grid-template-columns: 1fr; gap: 16px; }
  .tool-hero__title .tool-hero__icon { width: 56px; height: 56px; }
  .tool-main { padding-block: 30px 60px; }
  .tool-console { border-radius: 18px; }
  .tool-console__bar { padding-inline: 16px; letter-spacing: .06em; }
  .tool-form, .tool-result, .quiz-card { padding: 22px 18px; }
  .tool-field-row { grid-template-columns: 1fr; }
  .tool-result dl div { align-items: flex-start; flex-direction: column; gap: 3px; }
  .estimate-row { grid-template-columns: 26px 1fr 38px; padding-bottom: 14px; border-bottom: 1px solid var(--tools-line); }
  .estimate-row input { grid-column: 2; }
  .estimate-row > span { grid-row: 1; grid-column: 1; }
  .estimate-row button { grid-row: 1; grid-column: 3; }
  .quiz-options, .guess-options { grid-template-columns: 1fr; }
  .tool-explanation { padding: 56px 0; }
  .tool-related { padding: 24px 20px; }
  .tool-related > div:last-child, .tool-related .tools-button, .tool-result__actions .tools-button { width: 100%; }
}

@media (prefers-reduced-motion: reduce) {
  .tools-core__orbit, .tool-result__pulse, .tool-card { animation: none; }
  .tools-button, .tool-card, .quiz-progress span { transition: none; }
}