:root {
  --canvas: #f8f8f8;
  --white: #ffffff;
  --blue: #070154;
  --highlight: #0047ff;
  --magenta: #f900d3;
  --dark-gray: #50658e;
  --medium-gray: #ced7e6;
  --light-gray: #e8eef8;
  --green: #1dd566;
  --red: #f52c00;
  --yellow: #ffc700;
  --body: Arial, Helvetica, sans-serif;
  --heading: "IBM Plex Sans", Arial, Helvetica, sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--canvas); color: var(--blue); font-family: var(--body); font-size: 16px; line-height: 1.3; }
button, input, select, textarea { font: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
:focus-visible { outline: 3px solid var(--magenta); outline-offset: 3px; }

.site-header { min-height: 72px; padding: 0 5vw; display: flex; align-items: center; justify-content: space-between; border-bottom: 1px solid var(--medium-gray); background: var(--white); }
.wordmark { display: inline-flex; align-items: center; color: var(--blue); text-decoration: none; }
.brand-logo { display: block; width: 164px; height: auto; }
.header-meta { display: flex; align-items: center; gap: 8px; color: var(--dark-gray); font-size: 13px; }
.status-dot { width: 8px; height: 8px; background: var(--green); border-radius: 50%; display: inline-block; }
.breadcrumb-banner { min-height: 44px; padding: 0 5vw; display: flex; align-items: center; background: var(--blue); color: var(--white); }
.breadcrumb-list { display: flex; align-items: center; gap: 10px; margin: 0; padding: 0; list-style: none; font-size: 14px; font-weight: 600; }
.breadcrumb-list [aria-current="page"] { color: var(--magenta); }
.breadcrumb-separator { color: var(--medium-gray); font-weight: 400; }

main { max-width: 1600px; margin: 0 auto; }
.hero { padding: 24px 5vw; border-bottom: 1px solid var(--medium-gray); }
.section-kicker, .panel-label, .stat-label { font-family: var(--heading); font-size: 12px; font-weight: 700; letter-spacing: .1em; text-transform: uppercase; }
.hero-grid { display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(280px, .9fr); gap: 48px; align-items: center; }
h1, h2, h3, p { margin-top: 0; }
h1 { max-width: 900px; margin-bottom: 8px; font-family: var(--heading); font-size: clamp(28px, 2.8vw, 36px); line-height: 1.12; letter-spacing: .015em; text-transform: uppercase; }
h1 em { color: var(--magenta); font-style: normal; }
.hero-copy { max-width: 700px; margin-bottom: 0; color: var(--dark-gray); font-size: 16px; line-height: 1.4; }

.workspace { display: grid; grid-template-columns: minmax(0, .92fr) minmax(0, 1.08fr); gap: 32px; padding: 32px 5vw 80px; }
.section-kicker { display: flex; justify-content: space-between; align-items: center; margin-bottom: 12px; color: var(--blue); }
.section-kicker > span:first-child { color: var(--highlight); }
.panel { border: 1px solid var(--medium-gray); background: var(--white); }
.form-panel { padding: 32px; }
.result-panel { padding: 32px; min-height: 600px; }
.panel-heading, .result-topline, .table-header { display: flex; justify-content: space-between; gap: 24px; }
.panel-label { color: var(--highlight); display: block; margin-bottom: 8px; }
h2 { margin-bottom: 0; font-family: var(--heading); font-size: 28px; line-height: 1.2; text-transform: uppercase; letter-spacing: .04em; }
h3 { margin: 0; font-family: var(--heading); font-size: 20px; line-height: 1.3; }
.panel-intro { margin: 16px 0 32px; max-width: 680px; color: var(--dark-gray); font-size: 15px; }
.field { min-width: 0; }
.field-wide { margin-bottom: 24px; }
label, legend { display: flex; align-items: baseline; gap: 5px; margin-bottom: 8px; color: var(--blue); font-family: var(--body); font-size: 14px; font-weight: 700; }
.required { color: var(--magenta); }
.field-hint { display: block; margin-top: 6px; color: var(--dark-gray); font-size: 12px; }
textarea, input, select { width: 100%; border: 1px solid var(--medium-gray); border-radius: 0; background: var(--white); color: var(--blue); padding: 11px 12px; font-size: 15px; }
textarea { min-height: 110px; resize: vertical; line-height: 1.4; }
textarea::placeholder, input::placeholder { color: #6d7890; }
input[type="range"] { accent-color: var(--highlight); height: 36px; padding: 0; border: 0; }
input[type="range"]::-webkit-slider-runnable-track { height: 4px; background: var(--medium-gray); }
input[type="range"]::-webkit-slider-thumb { margin-top: -6px; width: 16px; height: 16px; border-radius: 50%; background: var(--blue); border: 2px solid var(--white); box-shadow: 0 0 0 1px var(--blue); -webkit-appearance: none; }
select { appearance: auto; }
.field-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }
.field-grid-three { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.driver-set { margin: 32px 0 0; padding: 24px 0 0; border: 0; border-top: 1px solid var(--medium-gray); }
.driver-set legend { margin: 0 0 8px; padding: 0; font-family: var(--heading); font-size: 17px; font-weight: 700; }
.driver-set legend span { display: inline-flex; align-items: center; justify-content: center; min-width: 24px; height: 24px; margin-right: 4px; background: var(--blue); color: var(--white); font-size: 12px; }
.driver-set > p { margin-bottom: 18px; color: var(--dark-gray); font-size: 13px; }
.input-with-prefix, .input-with-suffix { display: flex; align-items: stretch; }
.input-with-prefix span, .input-with-suffix span { display: inline-flex; align-items: center; padding: 0 10px; border: 1px solid var(--medium-gray); background: var(--light-gray); color: var(--dark-gray); }
.input-with-prefix input { border-left: 0; }
.input-with-suffix input { border-right: 0; }
.input-with-suffix span { min-width: 42px; justify-content: center; }
.form-message, .action-message { min-height: 20px; margin-top: 18px; color: var(--red); font-size: 13px; }
.action-row { display: flex; flex-wrap: wrap; align-items: center; gap: 12px; margin-top: 8px; }
.button { min-height: 46px; padding: 0 18px; border: 1px solid var(--blue); border-radius: 80px; cursor: pointer; font-size: 14px; font-weight: 700; transition: background .15s ease, color .15s ease; }
.button-primary { background: var(--blue); color: var(--white); }
.button-primary:hover { border-color: var(--highlight); background: var(--highlight); }
.button-secondary { background: var(--white); color: var(--blue); }
.button-secondary:hover { background: var(--light-gray); }
.text-button { border: 0; background: transparent; color: var(--highlight); padding: 8px 4px; cursor: pointer; font-size: 14px; font-weight: 700; text-decoration: underline; text-underline-offset: 3px; }
.privacy-note { display: flex; gap: 8px; align-items: center; margin: 28px 0 0; padding-top: 18px; border-top: 1px solid var(--medium-gray); color: var(--dark-gray); font-size: 12px; }
.privacy-note span { color: var(--highlight); font-size: 20px; }

.result-topline { margin-bottom: 28px; }
.empty-state { display: grid; place-items: center; min-height: 450px; padding: 40px; border: 1px dashed var(--medium-gray); text-align: center; }
.empty-mark { display: grid; place-items: center; width: 72px; height: 72px; margin-bottom: 24px; border: 2px solid var(--magenta); color: var(--magenta); font-family: var(--heading); font-size: 40px; font-weight: 700; }
.empty-state p { max-width: 360px; margin-bottom: 12px; font-family: var(--heading); font-size: 18px; font-weight: 600; }
.empty-state span { color: var(--dark-gray); font-size: 13px; }
.example-banner { margin-bottom: 20px; padding: 12px 14px; border-left: 3px solid var(--yellow); background: #fff8d7; color: var(--blue); font-size: 12px; }
.example-banner span { margin-right: 8px; font-weight: 700; letter-spacing: .08em; }
.headline-value { padding: 24px 0 28px; border-top: 2px solid var(--magenta); border-bottom: 1px solid var(--medium-gray); }
.stat-label { color: var(--dark-gray); }
.headline-value strong { display: block; margin: 8px 0 4px; color: var(--blue); font-family: var(--heading); font-size: clamp(48px, 7vw, 78px); line-height: 1; }
.headline-value strong.is-unquantified { font-size: clamp(34px, 5vw, 48px); }
.stat-support { color: var(--dark-gray); font-size: 13px; }
.kpi-grid { display: grid; grid-template-columns: repeat(3, 1fr); border-bottom: 1px solid var(--medium-gray); }
.kpi { min-width: 0; padding: 18px 14px 20px 0; border-right: 1px solid var(--medium-gray); }
.kpi + .kpi { padding-left: 16px; }
.kpi:last-child { border-right: 0; }
.kpi span { display: block; color: var(--dark-gray); font-size: 12px; }
.kpi strong { display: block; margin-top: 6px; color: var(--blue); font-family: var(--heading); font-size: 23px; }
.readout { margin: 24px 0; padding: 14px 16px; border-left: 3px solid var(--green); background: var(--light-gray); font-size: 14px; }
.readout.is-watch { border-left-color: var(--yellow); }
.readout.is-negative { border-left-color: var(--red); }
.readout.is-unquantified { border-left-color: var(--magenta); }
.industry-lens { margin: 24px 0 30px; padding: 20px; border: 1px solid var(--medium-gray); background: var(--canvas); }
.industry-lens-heading { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; gap: 8px; }
.industry-lens-heading .panel-label { margin: 0; }
.industry-lens-context { color: var(--dark-gray); font-size: 12px; }
.industry-lens h3 { margin: 12px 0 8px; font-size: 18px; }
.industry-lens p { margin: 0; color: var(--dark-gray); font-size: 14px; line-height: 1.45; }
.industry-lens ul { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 8px 24px; margin: 14px 0 0; padding-left: 18px; color: var(--blue); font-size: 13px; }
.industry-lens li::marker { color: var(--highlight); }
.table-header { align-items: end; margin: 28px 0 14px; }
.tag { display: inline-flex; align-items: center; min-height: 28px; padding: 0 10px; background: var(--light-gray); color: var(--blue); font-size: 12px; font-weight: 700; }
.table-wrap { overflow-x: auto; border: 1px solid var(--medium-gray); }
table { width: 100%; min-width: 720px; border-collapse: collapse; font-size: 13px; }
th { padding: 12px; background: var(--blue); color: var(--white); text-align: left; font-size: 11px; font-weight: 700; letter-spacing: .06em; text-transform: uppercase; }
td { padding: 14px 12px; border-top: 1px solid var(--medium-gray); vertical-align: top; }
td:first-child { font-family: var(--heading); font-weight: 700; }
td:nth-last-child(-n+2) { white-space: nowrap; font-family: var(--heading); font-weight: 700; }
.driver-name { display: block; margin-bottom: 3px; }
.driver-sub { color: var(--dark-gray); font-size: 11px; font-weight: 400; }
.formula-block, .assumption-block { margin-top: 28px; padding-top: 22px; border-top: 1px solid var(--medium-gray); }
.formula-block p { margin: 12px 0 0; padding: 14px 16px; background: var(--blue); color: var(--white); font-family: var(--heading); font-size: 15px; }
.assumption-block ul { margin: 12px 0 0; padding-left: 18px; color: var(--dark-gray); font-size: 13px; }
.assumption-block li + li { margin-top: 7px; }
.result-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }
.action-message { color: var(--highlight); }
.ai-readout { margin-top: 24px; padding: 22px; border: 1px solid var(--magenta); background: #fff7fb; }
.ai-readout-heading { display: flex; justify-content: space-between; gap: 16px; align-items: flex-start; }
.ai-readout-heading .panel-label { margin-bottom: 6px; }
.ai-readout-heading h3 { color: var(--blue); }
.ai-readout-badge { padding: 5px 8px; border: 1px solid var(--blue); background: var(--blue); color: var(--white); font-size: 10px; font-weight: 700; letter-spacing: .08em; }
.ai-readout > p { margin: 16px 0 0; color: var(--blue); font-size: 15px; line-height: 1.5; }
.ai-readout-columns { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 24px; margin-top: 20px; padding-top: 18px; border-top: 1px solid var(--medium-gray); }
.ai-readout-columns .panel-label { margin-bottom: 8px; }
.ai-readout-columns ul { margin: 0; padding-left: 18px; color: var(--dark-gray); font-size: 13px; line-height: 1.45; }
.ai-readout-columns li + li { margin-top: 8px; }
.ai-readout-columns li::marker { color: var(--magenta); }
.button:disabled { cursor: wait; opacity: .62; }
.site-footer { min-height: 140px; display: flex; flex-direction: column; justify-content: space-between; gap: 24px; padding: 38px clamp(24px, 6.85vw, 64px) 27px; background: var(--blue); color: var(--white); }
.footer-top-row, .footer-bottom-row { display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.footer-logo-link { display: inline-flex; max-width: 100%; align-items: center; }
.footer-logo { display: block; width: 172px; max-width: 100%; height: auto; }
.footer-social { display: flex; align-items: center; gap: 20px; }
.footer-social a { display: inline-flex; min-height: 24px; align-items: center; justify-content: center; }
.footer-social img { display: block; height: 16px; width: auto; }
.footer-links { display: flex; max-width: 100%; flex-wrap: wrap; align-items: center; justify-content: flex-end; gap: 10px 20px; }
.footer-links a { color: var(--white); font-size: 11px; line-height: 1.3; text-decoration: none; white-space: nowrap; }
.footer-links a:hover { text-decoration: underline; text-underline-offset: 3px; }
.footer-bottom-row { align-items: center; }
.footer-copyright { min-width: 0; margin: 0; font-size: 10px; line-height: 1.3; }

[hidden] { display: none !important; }
@media (max-width: 980px) {
  .workspace { grid-template-columns: 1fr; }
  .hero-grid { grid-template-columns: 1fr; gap: 12px; }
}
@media (max-width: 600px) {
  .site-header { min-height: 62px; padding: 0 20px; }
  .brand-logo { width: 136px; }
  .header-meta { font-size: 11px; }
  .breadcrumb-banner { padding: 8px 20px; }
  .breadcrumb-list { column-gap: 8px; row-gap: 4px; font-size: 13px; flex-wrap: wrap; }
  .hero { padding: 22px 20px; }
  h1 { font-size: 28px; }
  .hero-copy { font-size: 16px; }
  .workspace { padding: 32px 20px 56px; gap: 40px; }
  .form-panel, .result-panel { padding: 22px; }
  .field-grid, .field-grid-three { grid-template-columns: 1fr; }
  .industry-lens ul { grid-template-columns: 1fr; }
  .ai-readout-columns { grid-template-columns: 1fr; gap: 18px; }
  .kpi strong { font-size: 18px; }
  .empty-state { min-height: 300px; padding: 28px 18px; }
  .site-footer { min-height: 0; padding: 32px 20px; }
  .footer-top-row, .footer-bottom-row { align-items: flex-start; flex-direction: column; gap: 20px; }
  .footer-social { gap: 20px; }
  .footer-links { justify-content: flex-start; gap: 12px 20px; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .button { transition: none; }
}