:root {
    --bs-body-bg: #ffffff;
    --bs-body-color: #1a2835;
    --bs-primary: #414dd4;
    --page-bg: #ffffff;
    --page-surface: #f5f7fa;
    --page-surface-raised: #ffffff;
    --page-border: #dce3e9;
    --page-text: #1a2835;
    --page-muted: #53616c;
    --page-soft: #62717c;
    --page-accent: #414dd4;
    --page-navy: #203348;
    --page-max: 1200px;
}

html { scroll-behavior: smooth; }
body { margin: 0; background: var(--page-bg); color: var(--page-text); font-family: Inter, system-ui, sans-serif; -webkit-font-smoothing: antialiased; }
* { box-sizing: border-box; }
img { max-width: 100%; }
a { color: inherit; text-decoration: none; }
a:hover { color: var(--page-text); }
button { font: inherit; }
::selection { color: #1a2835; background: #dce1ff; }
:focus-visible { outline: 2px solid var(--page-accent); outline-offset: 4px; }
.container-xl { max-width: calc(var(--page-max) + 48px); }
.section-wrap { padding: clamp(88px, 10vw, 150px) 0; }
.eyebrow { margin: 0 0 26px; color: var(--page-muted); font-size: .72rem; font-weight: 700; letter-spacing: .18em; text-transform: uppercase; }
.eyebrow-line { display: inline-block; width: 24px; height: 1px; margin: 0 10px 4px 0; background: currentColor; }
.skip-link { position: fixed; top: -100px; left: 18px; z-index: 2000; padding: 12px 18px; border-radius: 8px; background: var(--page-navy); color: #fff; }
.skip-link:focus { top: 16px; }

/* Navigation */
.site-header { position: sticky; top: 0; z-index: 100; height: 72px; border-bottom: 1px solid var(--page-border); background: rgba(255,255,255,.94); backdrop-filter: blur(20px); }
.site-header .navbar { min-height: 71px; padding: 0; }
.brand { display: inline-flex; align-items: center; gap: 10px; color: var(--page-text); font-size: 1.1rem; font-weight: 700; letter-spacing: -.045em; white-space: nowrap; }
.brand:hover { color: var(--page-text); }
.brand img { width: 132px; height: auto; object-fit: contain; }
.site-header .brand img { filter: brightness(0); }
.site-header .nav-link, .nav-secondary { color: var(--page-muted); font-size: .82rem; font-weight: 500; transition: color .2s ease; }
.site-header .nav-link { padding: 14px 15px !important; }
.site-header .nav-link:hover, .site-header .nav-link:focus-visible, .nav-secondary:hover { color: var(--page-accent); }
.nav-actions { display: flex; align-items: center; gap: 26px; }
.navbar-toggler { padding: 8px; border: 1px solid var(--page-border); }
.navbar-toggler:focus { box-shadow: 0 0 0 2px var(--page-accent); }
.navbar-toggler-icon { width: 20px; height: 20px; }

/* Buttons */
.button { min-height: 46px; display: inline-flex; align-items: center; justify-content: center; gap: 24px; padding: 11px 19px; border: 1px solid transparent; border-radius: 9px; font-size: .88rem; font-weight: 700; line-height: 1.2; white-space: nowrap; transition: transform .2s ease, background .2s ease, color .2s ease, border-color .2s ease; }
.button:hover { transform: translateY(-2px); }
.button:active { transform: translateY(0); }
.button span { font-size: 1.05em; font-weight: 400; }
.button-primary { background: var(--page-accent); color: #fff; }
.button-primary:hover { background: #303cb9; color: #fff; }
.button-outline { border-color: #aab8c5; color: var(--page-text); background: transparent; }
.button-outline:hover { border-color: var(--page-accent); background: #f0f2ff; color: var(--page-accent); }
.button-sm { min-height: 37px; padding: 8px 12px; gap: 12px; font-size: .78rem; }

/* Hero and video demo */
.hero { padding-top: clamp(84px, 9vw, 132px); padding-bottom: 84px; }
.hero-copy { padding: 0 14px 52px; }
.hero h1 { max-width: 1040px; margin: 0; font-size: clamp(3.2rem, 7vw, 6.45rem); font-weight: 600; line-height: 1.02; letter-spacing: -.075em; }
.hero h1 span { color: var(--page-accent); }
.hero-bottom { display: flex; justify-content: space-between; align-items: flex-end; gap: 48px; margin-top: 48px; }
.hero-bottom > p { max-width: 540px; margin: 0; color: var(--page-muted); font-size: clamp(1rem, 1.45vw, 1.14rem); line-height: 1.65; }
.hero-actions { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: 10px; }
.hero-demo { overflow: hidden; border: 1px solid #32475d; border-radius: 14px; background: var(--page-navy); box-shadow: 0 28px 76px rgba(28,49,70,.16); }
.demo-header, .demo-footer { display: flex; align-items: center; justify-content: space-between; gap: 20px; padding: 16px 22px; background: var(--page-navy); color: #f7f4ee; }
.demo-header { border-bottom: 1px solid #405369; }
.demo-header h2 { display: flex; align-items: center; gap: 10px; margin: 0; font-size: .85rem; font-weight: 700; letter-spacing: -.02em; }
.demo-header > span, .demo-footer > span { color: #c3d0db; font-size: .65rem; font-weight: 700; letter-spacing: .15em; }
.hero-video { position: relative; width: 100%; aspect-ratio: 16 / 8.5; background: #050506; }
.hero-video iframe { position: absolute; inset: 0; width: 100%; height: 100%; border: 0; }
.demo-footer { border-top: 1px solid #405369; }
.demo-footer a { color: #fff; font-size: .78rem; font-weight: 600; white-space: nowrap; }
.demo-footer a:hover { color: #c6cdff; text-decoration: underline; text-underline-offset: 5px; }
#video-workflow, #research, #pricing { scroll-margin-top: 90px; }

/* Proof */
.proof-strip { border-block: 1px solid var(--page-border); background: var(--page-surface); color: var(--page-text); }
.proof-inner { padding-block: 48px 54px; }
.proof-inner h2 { margin: 0 0 34px; color: var(--page-muted); font-size: .78rem; font-weight: 700; letter-spacing: .14em; text-align: center; text-transform: uppercase; }
.logo-list { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); align-items: center; justify-items: center; gap: 30px 44px; max-width: 960px; margin-inline: auto; }
.logo-list img { display: block; width: auto; height: auto; max-width: 155px; max-height: 44px; object-fit: contain; filter: grayscale(1); opacity: .72; }
.logo-list .logo-blackstone { max-width: 130px; max-height: 60px; }
.logo-list .logo-spotify { max-width: 42px; max-height: 42px; }
.logo-list .logo-ipsos { max-width: 72px; max-height: 48px; }
.logo-list .logo-uncw { max-width: 118px; max-height: 48px; }

/* Ways to gather evidence */
.tools-section { padding-block: clamp(76px, 8vw, 112px); border-bottom: 1px solid var(--page-border); background: var(--page-surface); scroll-margin-top: 72px; }
.tools-section .section-intro { margin-bottom: 48px; }
.tool-explorer { overflow: hidden; border: 1px solid var(--page-border); border-radius: 13px; background: #fff; box-shadow: 0 18px 48px rgba(28,49,70,.06); }
.tool-tabs { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); border-bottom: 1px solid var(--page-border); background: #eef2f6; }
.tool-tab { min-height: 64px; display: flex; align-items: center; gap: 12px; padding: 17px 18px; border: 0; border-right: 1px solid var(--page-border); border-bottom: 2px solid transparent; background: transparent; color: var(--page-muted); font-size: .83rem; font-weight: 600; text-align: left; cursor: pointer; transition: color .2s ease, background .2s ease, border-color .2s ease; }
.tool-tab:last-child { border-right: 0; }
.tool-tab span { color: #62717c; font-size: .63rem; font-weight: 700; letter-spacing: .08em; }
.tool-tab:hover { background: #e5eafb; color: var(--page-accent); }
.tool-tab:active { background: #d8ddf7; }
.tool-tab:focus-visible { outline: 2px solid var(--page-accent); outline-offset: -4px; }
.tool-tab[aria-selected="true"] { border-bottom-color: var(--page-accent); background: #fff; color: var(--page-text); }
.tool-tab[aria-selected="true"] span { color: var(--page-accent); }
.tool-panel { display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(300px, .8fr); min-height: 390px; }
.tool-panel[hidden] { display: none; }
.tool-panel-visual { display: grid; place-items: center; min-width: 0; padding: 30px; border-right: 1px solid var(--page-border); background: #e9eef4; }
.tool-panel-visual img { display: block; width: 100%; max-width: 640px; height: auto; }
.tool-panel-copy { display: flex; flex-direction: column; align-items: flex-start; padding: clamp(28px, 4vw, 54px); }
.tool-panel-copy .eyebrow { margin-bottom: 26px; color: var(--page-accent); }
.tool-panel-copy h3 { max-width: 370px; margin: 0 0 20px; font-size: clamp(1.65rem, 2.6vw, 2.65rem); font-weight: 600; line-height: 1.14; letter-spacing: -.055em; }
.tool-panel-copy > p:not(.eyebrow) { max-width: 400px; margin: 0 0 30px; color: var(--page-muted); font-size: .93rem; line-height: 1.7; }
.tool-panel-copy .text-link { margin-top: auto; }

/* Platform principles */
.section-intro { display: grid; grid-template-columns: minmax(0, 1.3fr) minmax(280px, .7fr); align-items: end; column-gap: 60px; margin-bottom: 78px; }
.section-intro .eyebrow { grid-column: 1 / -1; margin-bottom: 22px; }
.section-intro h2 { max-width: 780px; margin: 0; font-size: clamp(2.7rem, 5.4vw, 5.2rem); font-weight: 600; line-height: 1.09; letter-spacing: -.065em; }
.section-intro > p:last-child { max-width: 370px; margin: 0 0 4px; color: var(--page-muted); font-size: 1rem; line-height: 1.72; }
.section-intro-short { display: block; margin-bottom: 66px; }
.section-intro-short h2 { max-width: 840px; }
.principles { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); border-top: 1px solid var(--page-border); }
.principle { min-width: 0; padding: 27px 25px 0 0; }
.principle + .principle { padding-left: 25px; border-left: 1px solid var(--page-border); }
.principle-number { color: var(--page-soft); font-size: .65rem; font-weight: 700; letter-spacing: .15em; }
.principle-visual { display: grid; place-items: center; height: 230px; margin: 12px 0 19px; }
.principle-diagram { display: block; width: min(100%, 300px); height: 190px; }
.diagram-panel { fill: #e8eef5; stroke: #9eafbd; stroke-width: 1.5; }
.diagram-front { fill: #dbe6f0; }
.diagram-line { fill: none; stroke: #879baa; stroke-width: 2; stroke-linecap: round; }
.diagram-accent { fill: var(--page-accent); }
.diagram-accent-line { fill: none; stroke: var(--page-accent); stroke-width: 2.5; stroke-linecap: round; stroke-linejoin: round; }
.diagram-accent-ring { fill: none; stroke: var(--page-accent); stroke-width: 2; }
.diagram-muted-bar { fill: #9bafbf; }
.principle h3 { margin: 0 0 9px; font-size: 1rem; font-weight: 600; letter-spacing: -.025em; }
.principle p { max-width: 300px; margin: 0; color: var(--page-muted); font-size: .86rem; line-height: 1.65; }

/* Workflow chapters */
.workflow-section { padding-top: 30px; }
.workflow { padding: 76px 0 106px; border-top: 1px solid var(--page-border); }
.workflow:last-child { padding-bottom: 0; }
.workflow-heading { display: grid; grid-template-columns: minmax(0, 1fr) minmax(280px, .83fr); gap: 90px; align-items: start; margin-bottom: 54px; }
.workflow-heading .eyebrow { margin: 0 0 28px; }
.workflow-heading h3 { max-width: 610px; margin: 0; font-size: clamp(2.4rem, 4.4vw, 4.3rem); font-weight: 600; line-height: 1.08; letter-spacing: -.065em; }
.workflow-heading > div:last-child { padding-top: 40px; }
.workflow-heading > div:last-child p { max-width: 470px; margin: 0 0 24px; color: var(--page-muted); font-size: 1rem; line-height: 1.72; }
.text-link { display: inline-flex; align-items: center; gap: 20px; padding-bottom: 6px; border-bottom: 1px solid var(--page-accent); color: var(--page-accent); font-size: .86rem; font-weight: 600; transition: gap .2s ease, border-color .2s ease; }
.text-link:hover { gap: 26px; border-color: #303cb9; color: #303cb9; }
.workflow-media { overflow: hidden; border: 1px solid var(--page-border); border-radius: 12px; background: #e9eef4; }
.workflow-media-document { display: grid; place-items: center; min-height: 600px; padding: 48px; background: radial-gradient(circle at center, #f5f8fc, #dce6f0 74%); }
.workflow-media-document img { width: min(100%, 850px); height: auto; border-radius: 5px; box-shadow: 0 25px 65px rgba(0,0,0,.45); }
.workflow-media-duo { display: grid; grid-template-columns: 1fr 1fr; gap: 1px; }
.workflow-media-duo > div { min-width: 0; padding: 34px 28px 24px; background: #e9eef4; }
.workflow-media-duo img { display: block; width: 100%; border-radius: 5px; }
.workflow-media-duo span { display: block; margin-top: 20px; color: var(--page-muted); font-size: .72rem; font-weight: 700; letter-spacing: .12em; text-transform: uppercase; }
.output-showcase { overflow: hidden; border: 1px solid var(--page-border); border-radius: 12px; background: #fff; }
.output-video { position: relative; width: 100%; aspect-ratio: 16 / 8.3; background: var(--page-navy); }
.output-video iframe { position: absolute; inset: 0; width: 100%; height: 100%; border: 0; }
.output-caption { display: flex; justify-content: space-between; gap: 20px; padding: 20px 25px; border-top: 1px solid var(--page-border); }
.output-caption span { color: var(--page-soft); font-size: .68rem; font-weight: 700; letter-spacing: .13em; }
.output-caption p { margin: 0; color: var(--page-muted); font-size: .8rem; }

/* Research */
.research-section { border-top: 1px solid #32475d; background: var(--page-navy); color: #fff; }
.research-heading { display: flex; justify-content: space-between; align-items: end; gap: 35px; margin-bottom: 34px; }
.research-heading .eyebrow { margin-bottom: 19px; color: #b5c5d7; }
.research-heading h2 { margin: 0; font-size: clamp(2.3rem, 4vw, 3.5rem); font-weight: 600; letter-spacing: -.055em; }
.research-heading > p { max-width: 390px; margin: 0 0 4px; color: #cbd7e2; font-size: .84rem; line-height: 1.65; }
.research-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 22px; }
.research-card { min-width: 0; }
.research-art { position: relative; overflow: hidden; width: 100%; aspect-ratio: 1.16 / 1; border: 1px solid rgba(255,255,255,.14); border-radius: 8px; }
.research-art::after { position: absolute; inset: 0; content: ''; background: linear-gradient(120deg, rgba(255,255,255,.32), transparent 42%, rgba(32,51,72,.12)); }
.research-art-sport { background: radial-gradient(ellipse at 12% 88%, #f6f4ff 0%, transparent 45%), radial-gradient(ellipse at 96% 4%, #98c4e9 0%, transparent 65%), linear-gradient(145deg, #d9e3ff, #b9cbfa 58%, #8bb4d9); }
.research-art-compare { background: radial-gradient(ellipse at 88% 88%, #415fc7 0%, transparent 48%), radial-gradient(ellipse at 9% 2%, #d8e9e0 0%, transparent 55%), linear-gradient(145deg, #acc9d6, #80b7c5 52%, #798dd6); }
.research-art-evidence { background: radial-gradient(ellipse at 85% 13%, #eef4fa 0%, transparent 36%), radial-gradient(ellipse at 0% 92%, #69d0d8 0%, transparent 54%), linear-gradient(135deg, #5179c9, #779dcf 55%, #d0deed); }
.research-card-copy { padding-top: 17px; }
.research-card h3 { max-width: 390px; margin: 0; color: #fff; font-size: clamp(1rem, 1.35vw, 1.18rem); font-weight: 500; line-height: 1.4; letter-spacing: -.02em; }
.research-card p { margin: 15px 0 0; color: #b5c5d7; font-size: .66rem; font-weight: 600; letter-spacing: .1em; }
.research-card p span { padding-inline: 5px; }

/* Pricing, closing, footer */
.pricing-section { border-top: 1px solid var(--page-border); background: #fff; }
.pricing-inner { display: grid; grid-template-columns: minmax(0, 1.25fr) minmax(280px, .75fr); align-items: end; gap: 100px; }
.pricing-inner .eyebrow { margin-bottom: 24px; }
.pricing-inner h2 { max-width: 720px; margin: 0; font-size: clamp(2.7rem, 5.2vw, 5rem); font-weight: 600; line-height: 1.08; letter-spacing: -.065em; }
.pricing-inner > div:last-child p { max-width: 360px; margin: 0 0 22px; color: var(--page-muted); line-height: 1.7; }
.calculator-frame { display: grid; grid-template-columns: minmax(0, 1.35fr) minmax(310px, .75fr); overflow: hidden; margin-top: 62px; border: 1px solid var(--page-border); border-radius: 16px; background: var(--page-surface-raised); box-shadow: 0 22px 70px rgba(32,51,72,.07); }
.calculator-inputs { padding: 12px 38px; }
.calculator-step { padding: 34px 0 38px; border-bottom: 1px solid var(--page-border); }
.calculator-step-last { border-bottom: 0; }
.calculator-step-label, .calculator-result-label { margin: 0 0 15px; color: var(--page-soft); font-size: .66rem; font-weight: 700; letter-spacing: .16em; }
.calculator-step h3 { margin: 0 0 24px; font-size: clamp(1.3rem, 2vw, 1.7rem); font-weight: 600; letter-spacing: -.045em; }
.calculator-media-choice, .calculator-agent-modes { display: grid; gap: 10px; }
.calculator-media-choice { grid-template-columns: repeat(2, minmax(0, 1fr)); margin-bottom: 24px; }
.calculator-media-choice button, .calculator-agent-modes button { min-width: 0; border: 1px solid var(--page-border); border-radius: 9px; background: #fff; color: var(--page-text); text-align: left; transition: border-color .2s ease, background .2s ease, box-shadow .2s ease; }
.calculator-media-choice button { padding: 15px 17px; font-size: .84rem; font-weight: 600; }
.calculator-media-choice button:hover, .calculator-agent-modes button:hover { border-color: #8794e7; }
.calculator-media-choice button[aria-pressed="true"], .calculator-agent-modes button[aria-pressed="true"] { border-color: var(--page-accent); background: #f3f4ff; box-shadow: inset 0 0 0 1px var(--page-accent); }
.calculator-fields { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 15px; }
.calculator-field { max-width: 350px; }
.calculator-field-compact { max-width: 265px; }
.calculator-field label { display: block; margin: 0 0 8px; color: var(--page-muted); font-size: .77rem; font-weight: 600; }
.calculator-number { display: flex; align-items: center; min-height: 48px; overflow: hidden; border: 1px solid #bbc6d0; border-radius: 8px; background: #fff; }
.calculator-number:focus-within { border-color: var(--page-accent); box-shadow: 0 0 0 2px #dce1ff; }
.calculator-number input { width: 100%; min-width: 0; padding: 10px 13px; border: 0; outline: 0; background: transparent; color: var(--page-text); font-size: 1rem; font-weight: 600; }
.calculator-number span { flex: 0 0 auto; padding: 0 13px; color: var(--page-soft); font-size: .72rem; white-space: nowrap; }
.calculator-hint { max-width: 520px; margin: 17px 0 0; color: var(--page-muted); font-size: .75rem; line-height: 1.6; }
.calculator-agent-modes { grid-template-columns: repeat(3, minmax(0, 1fr)); margin-bottom: 23px; }
.calculator-agent-modes button { min-height: 76px; padding: 12px 13px; }
.calculator-agent-modes strong, .calculator-agent-modes span { display: block; }
.calculator-agent-modes strong { font-size: .8rem; }
.calculator-agent-modes span { margin-top: 5px; color: var(--page-muted); font-size: .66rem; line-height: 1.35; }
.calculator-result { display: flex; flex-direction: column; padding: 44px 36px; background: var(--page-navy); color: #fff; }
.calculator-result-label { color: #b5c5d7; }
.calculator-result h3 { display: flex; flex-direction: column; gap: 3px; margin: 8px 0 34px; font-size: clamp(2.8rem, 4vw, 4.5rem); font-weight: 600; letter-spacing: -.07em; line-height: 1.1; overflow-wrap: anywhere; }
.calculator-result h3 small { color: #b5c5d7; font-size: .85rem; font-weight: 500; letter-spacing: 0; }
.calculator-breakdown { padding: 18px 0; border-top: 1px solid #496075; border-bottom: 1px solid #496075; }
.calculator-breakdown div { display: flex; justify-content: space-between; gap: 20px; padding: 8px 0; color: #d4dfe9; font-size: .83rem; }
.calculator-breakdown strong { color: #fff; font-weight: 600; }
.calculator-plan { margin-top: 35px; }
.calculator-plan > span { color: #b5c5d7; font-size: .66rem; font-weight: 700; letter-spacing: .16em; }
.calculator-plan strong { display: block; margin-top: 12px; font-size: 1.65rem; font-weight: 600; letter-spacing: -.045em; }
.calculator-plan p { margin: 10px 0 0; color: #cbd7e2; font-size: .8rem; line-height: 1.55; }
.calculator-result-link { width: 100%; justify-content: space-between; margin-top: auto; padding: 13px 16px; background: #fff; color: var(--page-navy); }
.calculator-result-link:hover { background: #e9edff; color: var(--page-navy); }
.calculator-caveat { margin: 20px 0 0; color: #b5c5d7; font-size: .71rem; line-height: 1.55; }
.closing-section { padding-block: 120px; border-top: 1px solid #32475d; text-align: center; background: radial-gradient(ellipse at 50% 10%, #304b67, #1a2835 70%); color: #f7f4ee; }
.closing-section .eyebrow { color: #c3d0db; }
.closing-inner h2 { margin: 0 auto 32px; font-size: clamp(3rem, 5.8vw, 5.8rem); font-weight: 600; line-height: 1.06; letter-spacing: -.07em; }
.closing-actions { display: flex; flex-wrap: wrap; justify-content: center; gap: 10px; }
.closing-section .button-primary { background: #fff; color: var(--page-navy); }
.closing-section .button-primary:hover { background: #e9edff; color: var(--page-navy); }
.closing-section .button-outline { border-color: #92a5b6; color: #fff; }
.closing-section .button-outline:hover { border-color: #fff; background: rgba(255,255,255,.1); color: #fff; }
.site-footer { border-top: 1px solid #415367; background: #1a2835; color: #f7f4ee; }
.site-footer .brand, .site-footer .brand:hover { color: #fff; }
.footer-main { display: grid; grid-template-columns: 2fr repeat(3, 1fr); gap: 38px; padding-block: 70px 85px; }
.footer-brand p { max-width: 250px; margin: 18px 0 0; color: #c3d0db; font-size: .8rem; line-height: 1.6; }
.footer-links { display: flex; flex-direction: column; align-items: flex-start; gap: 12px; }
.footer-links h2 { margin: 0 0 9px; color: #fff; font-size: .76rem; font-weight: 700; }
.footer-links a { color: #c3d0db; font-size: .78rem; transition: color .2s ease; }
.footer-links a:hover { color: #fff; }
.footer-bottom { display: flex; justify-content: space-between; gap: 20px; padding-block: 24px; border-top: 1px solid #415367; color: #c3d0db; font-size: .7rem; }

@media (max-width: 991.98px) {
    .calculator-frame { grid-template-columns: minmax(0, 1.15fr) minmax(285px, .85fr); }
    .calculator-inputs { padding-inline: 26px; }
    .calculator-result { padding: 37px 27px; }
    .site-header { height: auto; min-height: 72px; }
    .site-header .navbar-collapse { margin-top: 10px; padding: 12px 0 20px; border-top: 1px solid var(--page-border); }
    .site-header .nav-link { padding: 9px 0 !important; }
    .nav-actions { justify-content: space-between; padding-top: 12px; }
    .hero-bottom { align-items: flex-start; flex-direction: column; gap: 25px; }
    .hero-actions { justify-content: flex-start; }
    .workflow-heading { gap: 35px; }
    .footer-main { grid-template-columns: 1.5fr repeat(3, 1fr); gap: 20px; }
}

@media (max-width: 767.98px) {
    .calculator-frame { grid-template-columns: 1fr; margin-top: 38px; }
    .calculator-result-link { margin-top: 36px; }
    .section-wrap { padding-block: 82px; }
    .hero { padding-top: 76px; padding-bottom: 60px; }
    .hero-copy { padding: 0 0 40px; }
    .hero h1 { font-size: clamp(2.9rem, 11vw, 5rem); }
    .hero-bottom { margin-top: 30px; }
    .hero-video { aspect-ratio: 16 / 9; }
    .proof-inner { padding-block: 42px 48px; }
    .logo-list { gap: 28px 20px; }
    .tools-section .section-intro { margin-bottom: 32px; }
    .tool-tabs { display: flex; overflow-x: auto; scroll-snap-type: x proximity; }
    .tool-tab { flex: 0 0 auto; min-width: 158px; min-height: 58px; padding: 14px; scroll-snap-align: start; }
    .tool-panel { grid-template-columns: 1fr; }
    .tool-panel-visual { padding: 20px; border-right: 0; border-bottom: 1px solid var(--page-border); }
    .tool-panel-copy { padding: 28px 25px 34px; }
    .tool-panel-copy .eyebrow { margin-bottom: 16px; }
    .tool-panel-copy h3 { margin-bottom: 14px; }
    .tool-panel-copy > p:not(.eyebrow) { margin-bottom: 25px; }
    .section-intro, .pricing-inner { display: block; }
    .section-intro h2, .pricing-inner h2 { margin-bottom: 25px; }
    .principles { grid-template-columns: 1fr; }
    .principle, .principle + .principle { padding: 24px 0 30px; border-left: 0; border-bottom: 1px solid var(--page-border); }
    .principle-visual { height: 190px; }
    .workflow-section { padding-top: 0; }
    .workflow { padding: 60px 0 75px; }
    .workflow-heading { display: block; margin-bottom: 30px; }
    .workflow-heading > div:last-child { padding-top: 23px; }
    .workflow-media-document { min-height: 300px; padding: 18px; }
    .workflow-media-duo { grid-template-columns: 1fr; }
    .workflow-media-duo > div { padding: 18px; }
    .output-video { aspect-ratio: 16 / 9; }
    .output-caption { display: block; }
    .output-caption p { margin-top: 8px; }
    .research-heading { display: block; }
    .research-heading > p { margin-top: 18px; }
    .research-grid { grid-template-columns: 1fr; gap: 42px; }
    .research-art { aspect-ratio: 1.45 / 1; }
    .closing-section { padding-block: 90px; }
    .footer-main { grid-template-columns: repeat(2, 1fr); gap: 48px 25px; }
    .footer-brand { grid-column: 1 / -1; }
}

@media (max-width: 480px) {
    .calculator-inputs { padding-inline: 20px; }
    .calculator-fields, .calculator-agent-modes { grid-template-columns: 1fr; }
    .calculator-agent-modes { gap: 8px; }
    .calculator-agent-modes button { min-height: 0; }
    .calculator-media-choice button { padding: 12px; }
    .hero-actions, .closing-actions { flex-direction: column; align-items: stretch; width: 100%; }
    .hero-actions .button, .closing-actions .button { width: 100%; justify-content: space-between; }
    .demo-header, .demo-footer { padding: 12px 13px; }
    .demo-header > span { font-size: .53rem; letter-spacing: .1em; text-align: right; }
    .demo-footer > span { max-width: 170px; line-height: 1.5; }
    .logo-list { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 32px 16px; }
    .logo-list img { max-width: 126px; max-height: 38px; }
    .logo-list .logo-blackstone { max-width: 112px; max-height: 52px; }
    .logo-list .logo-spotify { max-width: 38px; max-height: 38px; }
    .logo-list .logo-ipsos { max-width: 62px; max-height: 42px; }
    .logo-list .logo-uncw { max-width: 104px; max-height: 42px; }
    .section-intro h2, .pricing-inner h2 { font-size: 2.5rem; }
    .workflow-heading h3 { font-size: 2.35rem; }
    .footer-bottom { flex-direction: column; gap: 6px; }
}

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after { scroll-behavior: auto !important; animation: none !important; transition: none !important; }
}