:root {
  --ink: #0e1525;
  --muted: #667085;
  --line: #dfe3e8;
  --paper: #f6f7f4;
  --white: #fff;
  --blue: #2855ee;
  --blue-dark: #1d43ca;
  --lime: #d5ff58;
  --green: #147a42;
  --red: #c93e4f;
  --radius: 20px;
  --shadow: 0 24px 70px rgba(18, 31, 56, .12);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 94px; }
body { margin: 0; color: var(--ink); background: var(--paper); font-family: Inter, "Segoe UI", Arial, sans-serif; font-size: 16px; line-height: 1.55; }
[id] { scroll-margin-top: 94px; }
a { color: inherit; text-decoration: none; }
button, input { font: inherit; }
.container { width: min(1280px, calc(100% - 48px)); margin-inline: auto; }
.skip-link { position: fixed; top: 8px; left: 8px; z-index: 100; padding: 10px 14px; background: var(--ink); color: white; transform: translateY(-140%); }
.skip-link:focus { transform: translateY(0); }

.site-header { position: sticky; top: 0; z-index: 20; background: rgba(246,247,244,.86); backdrop-filter: blur(16px); border-bottom: 1px solid rgba(14,21,37,.08); }
.nav-wrap { height: 76px; display: flex; align-items: center; justify-content: space-between; }
.logo { display: inline-flex; align-items: center; gap: 10px; font-size: 23px; font-weight: 800; letter-spacing: -.8px; }
.logo-dot { color: var(--blue); }
.logo-mark { width: 31px; height: 31px; display: grid; place-items: center; border-radius: 9px; background: var(--blue); transform: rotate(-7deg); }
.logo-mark span { width: 15px; height: 9px; border: solid white; border-width: 0 0 3px 3px; transform: rotate(-45deg) translate(1px, -1px); border-radius: 2px; }
.nav-wrap nav { display: flex; gap: 34px; color: #48505e; font-size: 15px; font-weight: 600; }
.nav-wrap nav a:hover { color: var(--blue); }
.header-cta { padding: 10px 17px; border: 1px solid #cdd2da; border-radius: 10px; font-size: 15px; font-weight: 700; background: white; }

.hero { padding: 72px 0 80px; overflow: hidden; background: radial-gradient(circle at 80% 20%, rgba(213,255,88,.36), transparent 25%), linear-gradient(180deg,#fbfcf9 0%,#f2f4f0 100%); border-bottom: 1px solid #dde0db; }
.hero-grid { display: grid; grid-template-columns: 1.03fr .97fr; gap: 74px; align-items: center; }
.eyebrow, .kicker { display: inline-flex; align-items: center; gap: 8px; color: var(--blue); font-size: 13px; line-height: 1; font-weight: 800; text-transform: uppercase; letter-spacing: 1.2px; }
.eyebrow { padding: 8px 11px; background: #e9edff; border-radius: 99px; }
.live-dot { width: 7px; height: 7px; background: var(--blue); border-radius: 50%; box-shadow: 0 0 0 4px rgba(40,85,238,.12); }
h1 { margin: 24px 0 20px; font-size: clamp(48px, 6vw, 76px); line-height: .98; letter-spacing: -4.2px; max-width: 650px; }
h1 span { color: var(--blue); }
.lead { max-width: 620px; margin: 0 0 32px; font-size: 19px; line-height: 1.55; color: #4f5868; }
.check-form { padding: 24px; background: white; border: 1px solid #dfe2e6; border-radius: 18px; box-shadow: 0 14px 42px rgba(20,30,50,.07); display: grid; grid-template-columns: 1fr; gap: 16px; }
.field { display: flex; flex-direction: column; gap: 7px; }
.field label { font-size: 13px; font-weight: 700; color: #4b5362; }
.field input { width: 100%; height: 54px; border: 1px solid #ced4dd; border-radius: 10px; padding: 0 16px; background: #fafbfc; color: var(--ink); font-size: 16px; outline: none; }
.field input:focus { border-color: var(--blue); box-shadow: 0 0 0 3px rgba(40,85,238,.11); }
.button { min-height: 52px; display: inline-flex; align-items: center; justify-content: center; gap: 12px; border: 0; border-radius: 11px; padding: 0 22px; cursor: pointer; font-weight: 800; transition: .2s ease; }
.button-primary { grid-column: 1 / -1; min-height: 56px; color: white; background: var(--blue); box-shadow: 0 9px 22px rgba(40,85,238,.26); }
.button-primary:hover { background: var(--blue-dark); transform: translateY(-1px); }
.button svg { width: 20px; fill: none; stroke: currentColor; stroke-width: 1.8; }
.form-note { grid-column: 1 / -1; margin: 0; display: flex; justify-content: center; align-items: center; gap: 7px; color: #7a8290; font-size: 13px; }
.form-note svg { width: 15px; fill: none; stroke: currentColor; stroke-width: 1.6; }

.result-window { position: relative; padding: 22px; background: var(--ink); color: white; border-radius: 27px; box-shadow: var(--shadow); transform: rotate(1.2deg); }
.result-window::before { content: ""; position: absolute; inset: -10px; border: 1px solid rgba(40,85,238,.25); border-radius: 34px; z-index: -1; transform: rotate(-2.6deg); }
.window-top { display: flex; justify-content: space-between; align-items: center; padding-bottom: 18px; border-bottom: 1px solid rgba(255,255,255,.1); }
.window-title { display: flex; gap: 9px; align-items: center; font-size: 14px; font-weight: 750; }
.pulse { width: 8px; height: 8px; border-radius: 50%; background: var(--lime); box-shadow: 0 0 0 5px rgba(213,255,88,.11); }
.window-time { color: #8f98a9; font-size: 12px; }
.result-query { padding: 19px 0 17px; display: flex; flex-direction: column; }
.result-query span { color: #8790a1; font-size: 12px; text-transform: uppercase; letter-spacing: .8px; }
.result-query strong { font-size: 16px; margin-top: 4px; }
.model-list { display: grid; gap: 9px; }
.model-card { padding: 13px 14px; display: flex; justify-content: space-between; align-items: center; background: #171f31; border: 1px solid #242e43; border-radius: 13px; }
.model-brand { display: flex; align-items: center; gap: 10px; }
.model-brand div { display: flex; flex-direction: column; }
.model-brand strong { font-size: 14px; }
.model-brand small { color: #8992a3; font-size: 11px; }
.model-icon { width: 39px; height: 39px; display: grid; place-items: center; border-radius: 11px; color: var(--ink); font-weight: 900; font-size: 14px; }
.model-icon.chatgpt { background: #d7ff63; }
.model-icon.claude { background: #e9c5a8; }
.model-icon.gemini { color: white; background: linear-gradient(135deg,#4778f6,#bf70da); }
.status { padding: 7px 10px; border-radius: 99px; font-size: 12px; font-weight: 750; display: inline-flex; align-items: center; gap: 6px; }
.status i { width: 6px; height: 6px; border-radius: 50%; }
.positive .status, .answer-head .status { color: #cfff68; background: rgba(128,176,49,.13); }
.positive .status i, .answer-head .status i { background: #b8f04d; }
.negative .status { color: #ff9fa8; background: rgba(201,62,79,.15); }
.negative .status i { background: #ee6675; }
.score-row { padding: 18px 4px 2px; }
.score-row > div:first-child { display: flex; justify-content: space-between; margin-bottom: 8px; font-size: 13px; color: #929bab; }
.score-row strong { color: white; }
.score-track { height: 7px; overflow: hidden; border-radius: 9px; background: #273044; }
.score-track span { display: block; width: 67%; height: 100%; background: var(--lime); border-radius: inherit; }
.floating-badge { position: absolute; right: -24px; bottom: -22px; padding: 11px 13px; color: var(--ink); background: var(--lime); border: 4px solid var(--paper); border-radius: 12px; font-size: 12px; font-weight: 800; transform: rotate(-3deg); }
.floating-badge span { margin-left: 7px; }

.trust-strip { background: white; border-bottom: 1px solid var(--line); }
.trust-grid { min-height: 120px; display: grid; grid-template-columns: repeat(3,1fr); align-items: center; }
.trust-grid > div { display: flex; align-items: center; gap: 22px; padding: 0 32px; border-right: 1px solid var(--line); }
.trust-grid > div:first-child { padding-left: 0; }
.trust-grid > div:last-child { border: 0; }
.trust-grid span { min-width: 48px; color: var(--blue); font-size: 34px; line-height: 1; font-weight: 850; letter-spacing: -1.5px; }
.trust-grid p { margin: 0; color: #6b7280; font-size: 14px; }
.trust-grid strong { color: var(--ink); display: block; font-size: 16px; }

.section { padding: 112px 0; }
.section-heading h2, .compare-copy h2, .faq-intro h2, .cta-card h2 { margin: 13px 0 18px; font-size: clamp(36px,4.2vw,54px); line-height: 1.06; letter-spacing: -2.6px; }
.section-heading p, .compare-copy > p, .faq-intro > p { color: var(--muted); font-size: 17px; }
.split-heading { display: grid; grid-template-columns: 1.15fr .85fr; gap: 80px; align-items: end; margin-bottom: 48px; }
.split-heading h2 { margin-bottom: 0; }
.split-heading > p { margin: 0 0 3px; }
.stats-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 16px; }
.stat-card { min-height: 330px; padding: 31px; border-radius: var(--radius); display: flex; flex-direction: column; }
.stat-card strong { font-size: 55px; line-height: 1; letter-spacing: -3px; }
.stat-card h3 { margin: 15px 0 14px; font-size: 19px; }
.stat-card p { margin: 0; opacity: .74; font-size: 15px; }
.stat-card a { margin-top: auto; font-size: 12px; font-weight: 700; opacity: .75; }
.stat-card a:hover { opacity: 1; }
.stat-card.dark { background: var(--ink); color: white; }
.stat-card.lime { background: var(--lime); }
.stat-card.light { background: white; border: 1px solid var(--line); }
.source-note { margin: 15px 3px 0; color: #8a919d; font-size: 12px; }

.how { background: white; }
.centered { max-width: 730px; text-align: center; margin: 0 auto 58px; }
.centered p { max-width: 650px; margin-inline: auto; }
.steps { display: grid; grid-template-columns: repeat(3,1fr); gap: 18px; }
.step { position: relative; min-height: 320px; padding: 28px; border: 1px solid var(--line); border-radius: var(--radius); background: #fbfcfa; }
.step.featured { color: white; background: var(--blue); border-color: var(--blue); transform: translateY(-12px); box-shadow: 0 22px 48px rgba(40,85,238,.22); }
.step-number { position: absolute; top: 24px; right: 25px; color: #b4bac4; font-size: 13px; font-weight: 800; }
.featured .step-number { color: #b8c7ff; }
.step-icon { width: 58px; height: 58px; display: grid; place-items: center; margin: 16px 0 57px; border-radius: 16px; color: var(--blue); background: #eef1ff; }
.featured .step-icon { color: var(--lime); background: rgba(255,255,255,.12); }
.step-icon svg { width: 30px; fill: none; stroke: currentColor; stroke-width: 1.7; }
.step h3 { margin: 0 0 10px; font-size: 21px; }
.step p { margin: 0; color: var(--muted); font-size: 15px; }
.featured p { color: #d3dcff; }

.compare { background: #f1f3ef; }
.compare-grid { display: grid; grid-template-columns: .82fr 1.18fr; gap: 90px; align-items: center; }
.compare-copy > p { font-size: 16px; }
.text-link { display: inline-flex; margin-top: 12px; color: var(--blue); font-weight: 800; font-size: 15px; }
.text-link span { margin-left: 8px; }
.comparison-table { background: white; border: 1px solid var(--line); border-radius: 18px; overflow: hidden; box-shadow: 0 15px 42px rgba(15,26,45,.06); }
.table-head, .table-row { display: grid; grid-template-columns: 1.15fr 1fr 1fr; }
.table-head { background: var(--ink); color: white; }
.table-head span { padding: 16px 19px; font-size: 12px; font-weight: 800; text-transform: uppercase; letter-spacing: .5px; }
.table-row { border-top: 1px solid var(--line); }
.table-row > * { padding: 20px 19px; font-size: 14px; }
.table-row strong { font-size: 13px; }
.table-row span { color: #687080; }
.table-row .ai-col, .table-head .ai-col { background: #f1f4ff; color: var(--blue); }
.table-head .ai-col { background: var(--blue); color: white; }

.case-section { background: white; }
.case-card { display: grid; grid-template-columns: .37fr .63fr; border: 1px solid var(--line); border-radius: 24px; overflow: hidden; box-shadow: 0 25px 80px rgba(15,26,45,.09); }
.case-sidebar { padding: 35px; background: var(--ink); color: white; }
.case-label { color: var(--lime); font-size: 11px; font-weight: 800; text-transform: uppercase; letter-spacing: 1px; }
.case-sidebar h3 { margin: 20px 0 8px; font-size: 25px; }
.case-sidebar > p { margin: 0; color: #a9b1c0; font-size: 14px; }
.case-score { margin: 35px 0; padding: 20px 0; border-block: 1px solid rgba(255,255,255,.12); }
.case-score > span { color: #a4adbc; font-size: 12px; }
.case-score strong { float: right; font-size: 23px; }
.case-score div { clear: both; height: 6px; margin-top: 12px; background: #273044; border-radius: 10px; }
.case-score i { display: block; width: 67%; height: 100%; background: var(--lime); border-radius: inherit; }
.case-sidebar ul { list-style: none; padding: 0; margin: 0; display: grid; gap: 13px; }
.case-sidebar li { display: flex; justify-content: space-between; font-size: 14px; font-weight: 650; }
.case-sidebar li span { font-size: 11px; }
.case-sidebar .yes span { color: var(--lime); }
.case-sidebar .no span { color: #ff8995; }
.answer-card { padding: 35px 40px; }
.answer-head { display: flex; justify-content: space-between; align-items: center; }
.answer-head .model-icon { color: var(--ink); }
.answer-head .status { color: var(--green); background: #edf8f1; }
.answer-head .status i { background: #2ba55f; }
blockquote { margin: 30px 0; padding: 27px; border: 1px solid var(--line); border-radius: 15px; background: #f8f9f7; color: #454d5b; font-size: 16px; line-height: 1.75; }
mark { padding: 2px 3px; color: var(--ink); background: #dcff78; }
.insights { display: grid; grid-template-columns: repeat(3,1fr); gap: 12px; }
.insights > div { min-height: 132px; padding: 19px; border: 1px solid var(--line); border-radius: 13px; }
.insight-icon { width: 31px; height: 31px; display: grid; place-items: center; margin-bottom: 13px; border-radius: 50%; color: var(--green); background: #e8f7ed; font-weight: 900; font-size: 15px; }
.insight-icon.warn { color: #8b6500; background: #fff2c2; }
.insights p { margin: 0; color: #687080; font-size: 13px; line-height: 1.5; }
.insights strong { display: block; margin-bottom: 3px; color: var(--ink); font-size: 14px; }
.demo-note { margin: 19px 0 0; color: #858d99; font-size: 12px; line-height: 1.55; }

.faq { background: #f2f4f0; }
.faq-grid { display: grid; grid-template-columns: .37fr .63fr; gap: 85px; }
.faq-intro { position: sticky; top: 110px; align-self: start; }
.faq-illustration { position: relative; width: 180px; height: 150px; margin-top: 52px; }
.faq-illustration span { position: absolute; z-index: 2; left: 35px; top: 3px; width: 105px; height: 105px; display: grid; place-items: center; border-radius: 31px; background: var(--lime); font-size: 67px; line-height: 1; font-weight: 900; transform: rotate(-7deg); box-shadow: 0 13px 0 #bada54; }
.faq-illustration i, .faq-illustration b { position: absolute; border-radius: 50%; background: var(--blue); }
.faq-illustration i { width: 25px; height: 25px; right: 5px; top: 3px; }
.faq-illustration b { width: 13px; height: 13px; left: 3px; bottom: 4px; }
.accordion details { overflow: hidden; border-top: 1px solid #d5d9dc; }
.accordion details:last-child { border-bottom: 1px solid #d5d9dc; }
.accordion summary { min-height: 82px; display: flex; align-items: center; justify-content: space-between; gap: 20px; list-style: none; cursor: pointer; font-size: 18px; font-weight: 750; }
.accordion summary::-webkit-details-marker { display: none; }
.accordion summary span { position: relative; flex: 0 0 31px; width: 31px; height: 31px; border: 1px solid #c6cbd2; border-radius: 50%; }
.accordion summary span::before, .accordion summary span::after { content: ""; position: absolute; top: 50%; left: 50%; width: 10px; height: 1.5px; background: var(--ink); transform: translate(-50%,-50%); }
.accordion summary span::after { transform: translate(-50%,-50%) rotate(90deg); transition: .2s; }
.accordion details[open] summary span::after { transform: translate(-50%,-50%) rotate(0); }
.accordion details[open] summary { color: var(--blue); }
.accordion details p { max-width: 730px; margin: -3px 48px 28px 0; color: var(--muted); font-size: 16px; line-height: 1.65; }

.cta-section { padding: 28px 0 95px; background: #f2f4f0; }
.cta-card { position: relative; min-height: 355px; padding: 62px 66px; display: flex; align-items: center; justify-content: space-between; overflow: hidden; color: white; background: var(--blue); border-radius: 27px; }
.cta-card > div:first-child { position: relative; z-index: 2; }
.cta-card h2 { margin-top: 16px; font-size: clamp(38px,4.7vw,59px); }
.cta-card p { max-width: 600px; margin: 0; color: #d6deff; }
.light-kicker { color: var(--lime); }
.button-light { position: relative; z-index: 2; min-width: 190px; color: var(--ink); background: white; }
.button-light:hover { transform: translateY(-2px); box-shadow: 0 12px 28px rgba(0,0,0,.18); }
.cta-orbit { position: absolute; right: 180px; bottom: -190px; width: 440px; height: 440px; border: 1px solid rgba(255,255,255,.16); border-radius: 50%; }
.cta-orbit::before, .cta-orbit::after { content: ""; position: absolute; border: 1px solid rgba(255,255,255,.12); border-radius: 50%; inset: 60px; }
.cta-orbit::after { inset: 120px; }
.cta-orbit i { position: absolute; width: 14px; height: 14px; background: var(--lime); border-radius: 50%; }
.cta-orbit i:nth-child(1) { top: 40px; left: 85px; }.cta-orbit i:nth-child(2) { top: 135px; right: 28px; width: 9px; height: 9px; }.cta-orbit i:nth-child(3) { top: 180px; left: 80px; width: 7px; height: 7px; }

.footer { color: #b0b7c5; background: var(--ink); }
.footer-main { padding: 65px 0 50px; display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 80px; }
.logo-footer { color: white; }
.footer-main > div p { max-width: 420px; margin: 20px 0 0; font-size: 14px; }
.footer nav { display: flex; flex-direction: column; gap: 11px; font-size: 14px; }
.footer nav strong { margin-bottom: 8px; color: white; font-size: 13px; }
.footer nav a:hover { color: var(--lime); }
.footer-bottom { padding: 20px 0 28px; display: flex; justify-content: space-between; border-top: 1px solid rgba(255,255,255,.1); font-size: 12px; }
.footer-bottom b { font-size: 15px; }

.toast { position: fixed; z-index: 50; right: 24px; bottom: 24px; max-width: 390px; padding: 16px; display: flex; gap: 13px; align-items: center; color: white; background: var(--ink); border: 1px solid #30394c; border-radius: 14px; box-shadow: 0 18px 50px rgba(0,0,0,.25); transform: translateY(140%); opacity: 0; transition: .3s ease; }
.toast.show { transform: translateY(0); opacity: 1; }
.toast-spinner { flex: 0 0 30px; width: 30px; height: 30px; border: 3px solid #3a4355; border-top-color: var(--lime); border-radius: 50%; animation: spin 1s linear infinite; }
.toast div:nth-child(2) { display: flex; flex-direction: column; }
.toast strong { font-size: 14px; }.toast span { color: #9fa7b5; font-size: 11px; }.toast button { margin-left: auto; border: 0; color: #aeb6c4; background: none; cursor: pointer; font-size: 22px; }
@keyframes spin { to { transform: rotate(360deg); } }

@media (max-width: 960px) {
  .hero-grid, .split-heading, .compare-grid, .faq-grid { grid-template-columns: 1fr; gap: 52px; }
  .hero-copy { max-width: 750px; }
  .result-window { max-width: 640px; margin-inline: auto; }
  .stats-grid { grid-template-columns: 1fr 1fr; }
  .stat-card:last-child { grid-column: 1/-1; min-height: 270px; }
  .faq-intro { position: static; }
  .faq-illustration { display: none; }
  .cta-card { padding: 50px 40px; }
}

@media (max-width: 700px) {
  .container { width: min(100% - 28px, 1280px); }
  .nav-wrap { height: 66px; }
  .nav-wrap nav { display: none; }
  .hero { padding: 48px 0 58px; }
  .hero-grid { gap: 45px; }
  h1 { font-size: 49px; letter-spacing: -3px; }
  .lead { font-size: 17px; }
  .check-form { grid-template-columns: 1fr; padding: 18px; }
  .floating-badge { right: 8px; }
  .trust-grid { grid-template-columns: 1fr; padding-block: 12px; }
  .trust-grid > div { min-height: 84px; padding: 0; border-right: 0; border-bottom: 1px solid var(--line); }
  .trust-grid span { min-width: 46px; font-size: 31px; }
  .trust-grid > div:last-child { border-bottom: 0; }
  .section { padding: 78px 0; }
  .section-heading h2, .compare-copy h2, .faq-intro h2 { font-size: 39px; letter-spacing: -2px; }
  .stats-grid, .steps, .case-card, .insights { grid-template-columns: 1fr; }
  .stat-card:last-child { grid-column: auto; }
  .step.featured { transform: none; }
  .case-sidebar, .answer-card { padding: 27px 22px; }
  .insights > div { min-height: 0; }
  .table-head, .table-row { grid-template-columns: .9fr 1fr 1fr; }
  .table-head span, .table-row > * { padding: 14px 10px; font-size: 11px; }
  .cta-section { padding-bottom: 60px; }
  .cta-card { min-height: 430px; padding: 42px 26px; flex-direction: column; align-items: flex-start; justify-content: center; gap: 30px; }
  .cta-card h2 { font-size: 40px; letter-spacing: -2px; }
  .footer-main { grid-template-columns: 1fr 1fr; gap: 42px 25px; }
  .footer-main > div { grid-column: 1/-1; }
  .toast { left: 14px; right: 14px; bottom: 14px; }
}

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