/*
  AISIGHT DESIGN BRIEF — inspired by https://conveo.ai/
  Structure: editorial nav → typography-led statement hero → product evidence stage
  → stepped platform narrative → dark tabbed workflow → indexed solutions
  → stacked proof modules → high-contrast closing CTA.
  Visual language: warm paper surfaces, near-black ink, sharp citrus signal accents,
  oversized humanist/geometric type, fine rules, minimal rounding, data-rich UI fragments.
  Motion: restrained fade/translate reveals, 640ms smooth easing, precise hover shifts.
*/
:root {
  --color-bg: #f4f1e9;
  --color-bg-alt: #ebe7dc;
  --color-surface: #fcfaf4;
  --color-text: #171913;
  --color-text-muted: #64665e;
  --color-accent: #d9ff43;
  --color-accent-hover: #c7ee2f;
  --color-signal: #ff6548;
  --color-ink: #171913;
  --color-ink-soft: #242720;
  --color-on-ink: #f5f2e9;
  --color-border: #cbc9be;
  --font-display: "Manrope", "Segoe UI", sans-serif;
  --font-body: "DM Sans", "Segoe UI", sans-serif;
  --radius-sm: 4px;
  --radius-md: 12px;
  --radius-lg: 24px;
  --container: 1240px;
  --space-section: clamp(6rem, 10vw, 10rem);
  --transition-base: 260ms cubic-bezier(.22,.7,.3,1);
  --transition-reveal: 640ms cubic-bezier(.16,1,.3,1);
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; color: var(--color-text); background: var(--color-bg); font: 400 1rem/1.6 var(--font-body); -webkit-font-smoothing: antialiased; }
body.modal-open { overflow: hidden; }
button, a { font: inherit; }
button { color: inherit; }
a { color: inherit; text-decoration: none; }
img, svg { display: block; max-width: 100%; }
h1, h2, h3, h4, p { margin-top: 0; }
h1, h2, h3, h4 { font-family: var(--font-display); letter-spacing: -.04em; line-height: 1.04; }
h2 { font-size: clamp(2.8rem, 6vw, 5.8rem); font-weight: 600; }
h3 { font-size: clamp(1.4rem, 2.2vw, 2rem); }
button { border: 0; }
.container { width: min(calc(100% - 3rem), var(--container)); margin-inline: auto; }
.section { padding-block: var(--space-section); }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }
.skip-link { position: fixed; z-index: 1000; top: 1rem; left: 1rem; padding: .7rem 1rem; background: var(--color-accent); transform: translateY(-200%); }
.skip-link:focus { transform: translateY(0); }
:focus-visible { outline: 3px solid var(--color-signal); outline-offset: 4px; }
.eyebrow { margin-bottom: 1.5rem; font-size: .72rem; font-weight: 600; letter-spacing: .16em; line-height: 1.2; text-transform: uppercase; }
.eyebrow--light { color: var(--color-accent); }

.site-header { position: fixed; z-index: 100; top: 0; width: 100%; border-bottom: 1px solid transparent; transition: background var(--transition-base), border var(--transition-base); }
.site-header.is-scrolled { background: rgba(244,241,233,.92); border-color: var(--color-border); backdrop-filter: blur(14px); }
.nav-shell { height: 82px; display: grid; grid-template-columns: 1fr auto 1fr; align-items: center; }
.brand { width: fit-content; }
.primary-nav { display: flex; align-items: center; gap: 2.2rem; font-size: .88rem; }
.primary-nav a { position: relative; }
.primary-nav a::after { content: ""; position: absolute; right: 0; bottom: -.35rem; left: 0; height: 1px; background: currentColor; transform: scaleX(0); transform-origin: right; transition: transform var(--transition-base); }
.primary-nav a:hover::after { transform: scaleX(1); transform-origin: left; }
.btn { display: inline-flex; min-height: 48px; align-items: center; justify-content: center; gap: 1.6rem; padding: .75rem 1.15rem; border: 1px solid var(--color-text); border-radius: var(--radius-sm); cursor: pointer; font-size: .9rem; font-weight: 600; transition: background var(--transition-base), color var(--transition-base), transform var(--transition-base); }
.btn:hover { transform: translateY(-2px); }
.btn--nav { justify-self: end; background: transparent; }
.btn--nav:hover, .btn--primary { background: var(--color-ink); color: var(--color-on-ink); }
.btn--primary:hover { background: var(--color-signal); border-color: var(--color-signal); }
.btn--light { background: var(--color-accent); border-color: var(--color-accent); color: var(--color-ink); }
.text-link { display: inline-flex; align-items: center; gap: 1.2rem; padding: .3rem 0; background: none; border-bottom: 1px solid currentColor; cursor: pointer; font-weight: 600; }
.text-link span { transition: transform var(--transition-base); }
.text-link:hover span { transform: translateX(5px); }
.text-link--light { color: var(--color-on-ink); }
.nav-toggle { display: none; background: none; }

.hero { min-height: 100vh; padding-top: 10.5rem; overflow: hidden; border-bottom: 1px solid var(--color-border); }
.hero__inner { position: relative; z-index: 2; }
.hero__title { max-width: 1150px; margin-bottom: 3.5rem; font-size: clamp(4.3rem, 9.4vw, 9rem); font-weight: 600; letter-spacing: -.075em; line-height: .88; }
.hero__title em { font-weight: 500; color: var(--color-signal); }
.hero__lower { display: grid; grid-template-columns: 1fr 1fr; align-items: end; gap: 3rem; margin-left: 39%; }
.hero__lead { max-width: 610px; margin-bottom: 0; font-size: clamp(1.15rem, 1.8vw, 1.55rem); line-height: 1.42; }
.hero__actions { display: flex; justify-content: flex-end; align-items: center; gap: 1.8rem; }
.signal-stage { position: relative; width: min(calc(100% - 3rem), 1380px); min-height: 500px; margin: 6rem auto 0; padding: 1rem; background: var(--color-ink); border-radius: var(--radius-lg) var(--radius-lg) 0 0; color: var(--color-on-ink); }
.signal-stage__rail { display: flex; align-items: center; gap: 1rem; padding: .8rem 1rem 1.8rem; color: #aaa99f; font-size: .68rem; letter-spacing: .1em; text-transform: uppercase; }
.signal-stage__rail i { height: 1px; flex: 1; background: #4b4e44; }
.signal-stage__rail strong { color: var(--color-accent); }
.signal-stage__conversation { position: relative; min-height: 430px; overflow: hidden; background: #20231c; border: 1px solid #40433a; border-radius: 14px 14px 0 0; }
.signal-stage__conversation::before { content: ""; position: absolute; inset: 0; opacity: .18; background-image: linear-gradient(#777 1px, transparent 1px), linear-gradient(90deg, #777 1px, transparent 1px); background-size: 58px 58px; }
.voice-card, .insight-card { position: absolute; z-index: 1; padding: 1.2rem; border: 1px solid #55584d; background: rgba(32,35,28,.94); box-shadow: 0 20px 50px rgba(0,0,0,.26); }
.voice-card { width: min(340px, 35%); }
.voice-card--one { top: 55px; left: 5%; }
.voice-card--two { right: 8%; bottom: 48px; }
.voice-card__avatar { display: inline-flex; width: 34px; height: 34px; align-items: center; justify-content: center; margin-bottom: 1rem; border-radius: 50%; background: var(--color-accent); color: var(--color-ink); font-size: .7rem; font-weight: 700; }
.voice-card p { margin-bottom: 1rem; font-size: 1.05rem; line-height: 1.35; }
.voice-card small, .insight-card span { color: #a7a89e; font-size: .7rem; text-transform: uppercase; letter-spacing: .08em; }
.insight-card { width: 350px; top: 125px; left: 50%; padding: 1.5rem; border-color: var(--color-accent); transform: translateX(-50%); }
.insight-card strong { display: block; margin: 1rem 0 1.5rem; font: 600 1.55rem/1.1 var(--font-display); letter-spacing: -.04em; }
.status-dot { display: inline-block; width: 8px; height: 8px; margin-right: .5rem; border-radius: 50%; background: var(--color-accent); }
.trust-line { display: flex; min-height: 100px; align-items: center; justify-content: space-between; gap: 2rem; color: var(--color-text-muted); font-size: .72rem; letter-spacing: .12em; }
.trust-line span:first-child { color: var(--color-text); letter-spacing: 0; text-transform: none; }

.section-intro { display: grid; grid-template-columns: .55fr 1.45fr; margin-bottom: 6rem; }
.section-intro h2 { max-width: 900px; margin: 0; }
.platform-story { display: grid; grid-template-columns: .72fr 1.28fr; gap: 5rem; }
.platform-story__steps { border-top: 1px solid var(--color-border); }
.story-step { display: grid; grid-template-columns: 48px 1fr; gap: 1.2rem; padding: 2rem 0; border-bottom: 1px solid var(--color-border); cursor: pointer; opacity: .45; transition: opacity var(--transition-base), padding var(--transition-base); }
.story-step.is-active, .story-step:hover { opacity: 1; padding-left: .8rem; }
.story-step > span { font-size: .72rem; }
.story-step h3 { margin-bottom: .6rem; }
.story-step p { max-width: 380px; margin: 0; color: var(--color-text-muted); }
.intelligence-view { align-self: start; min-height: 600px; padding: 1.5rem; background: var(--color-accent); border-radius: var(--radius-md); }
.intelligence-view__top { display: flex; justify-content: space-between; font-size: .65rem; font-weight: 600; letter-spacing: .1em; }
.live-label { color: #4c561e; }
.query { margin: 5rem 0 2rem; font: 500 clamp(2rem, 4vw, 4rem)/1.04 var(--font-display); letter-spacing: -.05em; }
.answer { max-width: 80%; margin-left: auto; padding: 1.8rem; background: var(--color-surface); border-radius: var(--radius-sm); }
.answer__label { font-size: .65rem; letter-spacing: .1em; }
.answer h3 { margin: 1.5rem 0 .8rem; }
.answer p { color: var(--color-text-muted); }
.evidence { display: flex; flex-wrap: wrap; gap: .5rem; }
.evidence span, .proof-tags span { padding: .4rem .6rem; border: 1px solid var(--color-border); font-size: .68rem; }
.text-link--dark { margin-top: 2.5rem; margin-left: auto; }

.section--ink { background: var(--color-ink); color: var(--color-on-ink); }
.section-heading-row { display: grid; grid-template-columns: 1.2fr .8fr; align-items: end; gap: 5rem; margin-bottom: 5rem; }
.section-heading-row h2 { margin: 0; }
.section-heading-row > p { max-width: 450px; color: #b8b9b0; font-size: 1.15rem; }
.capability-tabs { display: grid; grid-template-columns: repeat(3,1fr); border-top: 1px solid #4b4e44; }
.capability-tab { padding: 1.2rem 0; background: transparent; border-bottom: 1px solid #4b4e44; color: #85877e; text-align: left; cursor: pointer; }
.capability-tab.is-active { border-bottom-color: var(--color-accent); color: var(--color-accent); }
.capability-panel { display: grid; grid-template-columns: .9fr 1.1fr; gap: 7rem; align-items: center; min-height: 580px; padding-block: 5rem 1rem; }
.capability-panel__copy > span, .conversation-ui > span { color: var(--color-accent); font-size: .68rem; letter-spacing: .12em; }
.capability-panel__copy h3 { max-width: 550px; margin: 1.5rem 0; font-size: clamp(2rem, 4vw, 4.5rem); }
.capability-panel__copy p, .capability-panel__copy li { color: #b8b9b0; }
.capability-panel__copy ul { margin: 2rem 0 0; padding: 0; list-style: none; }
.capability-panel__copy li { padding: .75rem 0; border-top: 1px solid #3e4138; }
.conversation-ui { position: relative; min-height: 450px; padding: 2rem; overflow: hidden; background: var(--color-ink-soft); border: 1px solid #44473e; border-radius: var(--radius-md); }
.conversation-ui p { max-width: 480px; margin-top: 11rem; font: 500 clamp(1.6rem,3vw,2.7rem)/1.12 var(--font-display); letter-spacing: -.04em; }
.waveform { height: 80px; margin-top: 2rem; background: repeating-linear-gradient(90deg, var(--color-accent) 0 2px, transparent 2px 9px); mask-image: linear-gradient(to bottom, transparent 5%, #000 50%, transparent 95%); transform: perspective(100px) rotateX(35deg); }
.conversation-meta { display: flex; gap: 1rem; align-items: center; color: #989a91; font-size: .7rem; }
.conversation-meta i { width: 8px; height: 8px; border-radius: 50%; background: var(--color-signal); }
.conversation-meta span:last-child { margin-left: auto; }
.theme-node { position: absolute; display: grid; width: 110px; height: 110px; place-items: center; border: 1px solid var(--color-accent); border-radius: 50%; background: #292c24; }
.theme-node--a { top: 25%; left: 12%; }.theme-node--b { top: 13%; right: 15%; }.theme-node--c { right: 25%; bottom: 13%; }.theme-node--d { bottom: 10%; left: 22%; }
.conversation-ui--report h4 { margin: 7rem 0 2rem; font-size: 2.4rem; }
.conversation-ui--report ol { padding: 0; list-style-position: inside; }
.conversation-ui--report li { padding: 1rem 0; border-top: 1px solid #494c42; font-size: 1.1rem; }

.section-intro--split { grid-template-columns: 1.4fr .6fr; align-items: end; gap: 5rem; }
.section-intro--split p:last-child { max-width: 420px; margin-bottom: .8rem; font-size: 1.1rem; color: var(--color-text-muted); }
.solution-index { border-top: 1px solid var(--color-text); }
.solution-row { display: grid; width: 100%; grid-template-columns: 60px 1fr 1fr 30px; align-items: center; gap: 2rem; padding: 2rem 0; background: transparent; border-bottom: 1px solid var(--color-border); text-align: left; cursor: pointer; transition: padding var(--transition-base), background var(--transition-base); }
.solution-row:hover { padding-inline: 1rem; background: var(--color-accent); }
.solution-row > span { font-size: .72rem; }
.solution-row h3, .solution-row p { margin: 0; }
.solution-row p { color: var(--color-text-muted); }
.solution-row b { font-size: 1.3rem; }

.technology { background: var(--color-bg-alt); }
.technology-grid { display: grid; grid-template-columns: .8fr 1.2fr; gap: 7rem; }
.technology-copy { position: sticky; top: 130px; align-self: start; }
.technology-copy p:not(.eyebrow) { max-width: 470px; margin: 2rem 0; color: var(--color-text-muted); font-size: 1.1rem; }
.proof-stack { display: grid; gap: 1rem; }
.proof-stack article { min-height: 340px; padding: 2rem; background: var(--color-surface); border: 1px solid var(--color-border); }
.proof-stack article > span { font-size: .68rem; letter-spacing: .12em; }
.proof-stack h3 { max-width: 500px; margin: 4.5rem 0 1rem; font-size: clamp(2rem, 3.6vw, 3.5rem); }
.proof-stack p { max-width: 480px; color: var(--color-text-muted); }
.proof-line { display: flex; gap: 6px; margin-top: 2rem; }
.proof-line i { height: 6px; flex: 1; background: var(--color-accent); }
.proof-line i:nth-child(2) { flex: 2; background: var(--color-signal); }
.proof-stat { display: flex; align-items: end; gap: 1rem; }
.proof-stat strong { font: 600 4rem/1 var(--font-display); }
.proof-stat small { max-width: 100px; }
.proof-tags { display: flex; gap: .6rem; margin-top: 2rem; }

.cta-section { padding-block: 8rem; background: var(--color-signal); color: var(--color-ink); }
.cta-section__inner { display: grid; grid-template-columns: 1.2fr .8fr; align-items: end; gap: 5rem; }
.cta-section h2 { margin: 0; font-size: clamp(4rem, 8vw, 8rem); }
.cta-section__inner > div:last-child p { max-width: 400px; font-size: 1.2rem; }
.cta-section .btn { margin: 1.5rem 1.5rem 0 0; }
.cta-section .eyebrow--light, .cta-section .text-link--light { color: var(--color-ink); }

.site-footer { padding: 5rem 0 2rem; background: var(--color-ink); color: var(--color-on-ink); }
.site-footer img { filter: brightness(0) invert(1); }
.footer-top { display: grid; grid-template-columns: 1fr 1fr 1fr; align-items: start; min-height: 240px; }
.footer-top p { color: #999b91; }
.footer-top a { justify-self: end; border-bottom: 1px solid; }
.footer-bottom { display: grid; grid-template-columns: 1fr auto 1fr; gap: 2rem; padding-top: 1.5rem; border-top: 1px solid #41443b; color: #999b91; font-size: .78rem; }
.footer-bottom nav { display: flex; gap: 1.5rem; }
.footer-bottom > a { justify-self: end; }

.modal[hidden] { display: none; }
.modal { position: fixed; z-index: 500; inset: 0; display: grid; place-items: center; padding: 1.5rem; }
.modal__backdrop { position: absolute; inset: 0; background: rgba(23,25,19,.78); backdrop-filter: blur(8px); }
.modal__panel { position: relative; z-index: 1; width: min(620px,100%); max-height: min(700px,90vh); overflow-y: auto; padding: clamp(2rem,5vw,4rem); background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius-md); }
.modal__panel h2 { margin-bottom: 1.5rem; font-size: clamp(2.5rem,5vw,4.5rem); }
.modal__panel > p:not(.eyebrow) { margin-bottom: 2rem; color: var(--color-text-muted); font-size: 1.1rem; }
.modal__close { position: absolute; top: 1rem; right: 1rem; width: 42px; height: 42px; background: transparent; border: 1px solid var(--color-border); border-radius: 50%; cursor: pointer; font-size: 1.5rem; }