@font-face {
  font-family: "Geist";
  font-style: normal;
  font-display: swap;
  font-weight: 100 900;
  src: url("/fonts/geist-latin-wght-normal.woff2") format("woff2-variations");
}

:root {
  --white: #ffffff;
  --mist: #f3f5fa;
  --ink: #0e1530;
  --slate: #4a5370;
  --line: #e2e6f0;
  --blue: #2f5bff;
  --blue-deep: #1d40cc;
  --lime: #b8f34a;
  --measure: 66ch;
  --page: 74rem;
  --gutter: clamp(1rem, 4vw, 2.5rem);
  --radius: 0.75rem;
  font-family: "Geist", "Segoe UI", system-ui, sans-serif;
  color: var(--ink);
  background: var(--white);
  font-feature-settings: "ss01", "cv11";
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; scroll-padding-top: 5rem; }
body { margin: 0; font-size: 1.0625rem; line-height: 1.65; background: var(--white); -webkit-font-smoothing: antialiased; }
img, svg { display: block; max-width: 100%; }
a { color: var(--blue-deep); text-underline-offset: 0.2em; }
a:hover { color: var(--ink); }
:focus-visible { outline: 3px solid var(--blue); outline-offset: 3px; border-radius: 4px; }

h1, h2, h3, h4 { margin: 0; font-weight: 600; letter-spacing: -0.03em; text-wrap: balance; }
h1 { font-size: clamp(2.5rem, 5.4vw, 4.1rem); line-height: 1.04; letter-spacing: -0.04em; }
h2 { font-size: clamp(1.9rem, 3.6vw, 2.75rem); line-height: 1.1; }
h3 { font-size: 1.3rem; line-height: 1.25; letter-spacing: -0.02em; }
h4 { font-size: 1.05rem; line-height: 1.35; letter-spacing: -0.01em; }
p { margin: 0; max-width: var(--measure); }

.wrap { width: min(100% - 2 * var(--gutter), var(--page)); margin-inline: auto; }
.skip { position: absolute; left: -999px; }
.skip:focus { left: var(--gutter); top: 0.75rem; background: var(--white); padding: 0.5rem 0.75rem; z-index: 20; }

/* Buttons */
.button {
  display: inline-flex; align-items: center; justify-content: center;
  min-height: 3rem; padding: 0 1.4rem; border-radius: 999px;
  background: var(--blue); color: var(--white); font: inherit; font-weight: 600; font-size: 1rem;
  text-decoration: none; border: 1px solid var(--blue); cursor: pointer;
  transition: background-color 150ms ease, border-color 150ms ease;
}
.button:hover { background: var(--blue-deep); border-color: var(--blue-deep); color: var(--white); }
.button.secondary { background: transparent; color: var(--ink); border-color: #c9cfdf; }
.button.secondary:hover { border-color: var(--ink); color: var(--ink); background: transparent; }

/* Header */
.site-header { position: sticky; top: 0; z-index: 10; background: rgb(255 255 255 / 0.92); backdrop-filter: saturate(1.4) blur(10px); border-bottom: 1px solid var(--line); }
.site-header .wrap { display: flex; align-items: center; gap: 2rem; min-height: 4.25rem; }
.brand { display: inline-flex; align-items: center; gap: 0.55rem; color: var(--ink); text-decoration: none; font-weight: 600; font-size: 1.25rem; letter-spacing: -0.03em; }
.brand img { width: 1.9rem; height: 1.9rem; }
.brand b { color: var(--blue); font-weight: inherit; }
.nav { display: flex; gap: 1.75rem; margin-left: auto; }
.nav a { color: var(--slate); text-decoration: none; font-size: 0.97rem; font-weight: 500; }
.nav a:hover { color: var(--ink); }
.site-header .button { min-height: 2.6rem; padding: 0 1.1rem; font-size: 0.95rem; }

/* Hero */
.hero { padding-block: clamp(3.5rem, 8vw, 6.5rem) clamp(3rem, 6vw, 4.5rem); }
.hero-grid { display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr); gap: clamp(2.5rem, 5vw, 5rem); align-items: center; }
.hero h1 { max-width: 15ch; }
.hero .lede { margin-top: 1.5rem; font-size: 1.22rem; line-height: 1.6; color: var(--slate); max-width: 48ch; }
.hero .actions { display: flex; flex-wrap: wrap; gap: 0.75rem; margin-top: 2.25rem; }
.engines { margin-top: clamp(3rem, 6vw, 4.5rem); padding-top: 1.75rem; border-top: 1px solid var(--line); display: flex; flex-wrap: wrap; align-items: baseline; gap: 0.75rem 2.25rem; }
.engines p { color: var(--slate); font-size: 0.95rem; margin-right: 0.5rem; }
.engines ul { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: 0.75rem 2.25rem; }
.engines li { font-weight: 600; font-size: 1.05rem; letter-spacing: -0.02em; color: var(--ink); opacity: 0.78; }

/* The AI answer card: the page's one bold visual */
.answer { margin: 0; background: var(--white); border: 1px solid var(--line); border-radius: 1.25rem; padding: 1.5rem; box-shadow: 0 30px 60px -36px rgb(14 21 48 / 0.4), 0 2px 6px rgb(14 21 48 / 0.04); }
.answer .ask { margin-left: auto; width: fit-content; max-width: 88%; background: var(--mist); border-radius: 1rem 1rem 0.3rem 1rem; padding: 0.7rem 1rem; font-size: 0.97rem; }
.answer .reply { margin-top: 1.25rem; display: grid; grid-template-columns: 1.9rem 1fr; gap: 0.85rem; }
.answer .bot { width: 1.9rem; height: 1.9rem; border-radius: 50%; background: var(--ink); }
.answer .reply p { font-size: 0.97rem; }
.answer mark { background: none; color: var(--blue-deep); font-weight: 600; }
.answer .sources { list-style: none; margin: 1rem 0 0; padding: 0; display: grid; gap: 0.45rem; grid-column: 2; }
.answer .sources li { display: flex; align-items: center; gap: 0.6rem; font-size: 0.87rem; color: var(--slate); border: 1px solid var(--line); border-radius: 0.6rem; padding: 0.45rem 0.7rem; }
.answer .sources li::before { content: ""; width: 0.55rem; height: 0.55rem; border-radius: 50%; background: var(--line); flex: none; }
.answer .sources li.cited { color: var(--ink); border-color: var(--blue); font-weight: 600; }
.answer .sources li.cited::before { background: var(--lime); box-shadow: 0 0 0 3px var(--blue); animation: cited 900ms 500ms both cubic-bezier(.2, .9, .3, 1.4); }
.answer figcaption { margin-top: 1rem; font-size: 0.8rem; color: var(--slate); grid-column: 2; }
@keyframes cited { from { transform: scale(0); } to { transform: scale(1); } }

/* Sections */
.section { padding-block: clamp(4rem, 9vw, 7rem); }
.section.tint { background: var(--mist); }
.section-head { max-width: 46rem; margin-bottom: clamp(2.5rem, 5vw, 3.75rem); }
.section-head p { margin-top: 1rem; color: var(--slate); font-size: 1.15rem; }

/* Causes */
.causes { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: clamp(1.5rem, 3vw, 3rem); }
.causes h3 { margin-bottom: 0.65rem; }
.causes p { color: var(--slate); }
.causes .mark { display: block; width: 2.25rem; height: 0.25rem; border-radius: 999px; background: var(--blue); margin-bottom: 1.25rem; }

/* Service pillars */
.pillars { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); border: 1px solid var(--line); border-radius: 1.25rem; overflow: hidden; }
.pillar { padding: clamp(1.5rem, 3vw, 2.25rem); }
.pillar + .pillar { border-left: 1px solid var(--line); }
.pillar > p { color: var(--slate); margin-top: 0.6rem; }
.pillar ul { list-style: none; margin: 1.75rem 0 0; padding: 0; display: grid; gap: 1.35rem; }
.pillar li p { color: var(--slate); font-size: 0.97rem; margin-top: 0.3rem; }
.pillar .tag { display: inline-block; font-size: 0.85rem; font-weight: 600; color: var(--blue-deep); background: #e8edff; border-radius: 999px; padding: 0.2rem 0.65rem; margin-bottom: 1rem; }
.pillars-cta { margin-top: 2rem; display: flex; flex-wrap: wrap; align-items: center; gap: 1rem 1.5rem; }
.pillars-cta p { color: var(--slate); }

/* Process: a real sequence, so it's numbered */
.steps { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: clamp(1.25rem, 2.5vw, 2rem); counter-reset: step; }
.steps li { counter-increment: step; background: var(--white); border: 1px solid var(--line); border-radius: var(--radius); padding: 1.5rem; }
.steps li::before { content: counter(step); display: grid; place-items: center; width: 2.1rem; height: 2.1rem; border-radius: 50%; background: var(--ink); color: var(--white); font-weight: 600; font-size: 0.95rem; margin-bottom: 1.1rem; }
.steps h3 { font-size: 1.15rem; margin-bottom: 0.45rem; }
.steps p { color: var(--slate); font-size: 0.97rem; }

/* Standards */
.standards { background: var(--ink); color: var(--white); }
.standards .section-head p { color: rgb(255 255 255 / 0.72); }
.standards-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0; border-top: 1px solid rgb(255 255 255 / 0.14); }
.standards-grid div { padding: 1.5rem 2rem 1.5rem 0; border-bottom: 1px solid rgb(255 255 255 / 0.14); }
.standards-grid div:nth-child(even) { padding-left: 2rem; border-left: 1px solid rgb(255 255 255 / 0.14); }
.standards-grid h3 { font-size: 1.12rem; color: var(--white); }
.standards-grid p { margin-top: 0.4rem; color: rgb(255 255 255 / 0.72); font-size: 0.98rem; }

/* FAQ */
.faq { max-width: 52rem; border-top: 1px solid var(--line); }
.faq details { border-bottom: 1px solid var(--line); }
.faq summary { cursor: pointer; list-style: none; padding: 1.25rem 2.5rem 1.25rem 0; font-weight: 600; font-size: 1.1rem; letter-spacing: -0.01em; position: relative; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: ""; position: absolute; right: 0.4rem; top: 1.55rem; width: 0.6rem; height: 0.6rem; border-right: 2px solid var(--slate); border-bottom: 2px solid var(--slate); transform: rotate(45deg); transition: transform 150ms ease; }
.faq details[open] summary::after { transform: rotate(-135deg); top: 1.8rem; }
.faq details p { padding-bottom: 1.35rem; color: var(--slate); }

/* Contact */
.contact-grid { display: grid; grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr); gap: clamp(2rem, 5vw, 5rem); align-items: start; }
.contact-copy p { margin-top: 1rem; color: var(--slate); font-size: 1.1rem; }
.next { list-style: none; margin: 2rem 0 0; padding: 0; display: grid; gap: 1rem; counter-reset: next; }
.next li { counter-increment: next; display: grid; grid-template-columns: 2rem 1fr; gap: 0.75rem; color: var(--ink); }
.next li::before { content: counter(next); display: grid; place-items: center; width: 1.75rem; height: 1.75rem; border-radius: 50%; border: 1px solid #c9cfdf; font-size: 0.85rem; font-weight: 600; color: var(--slate); }
.contact-copy .direct { margin-top: 2rem; color: var(--slate); font-size: 1rem; }

.form { background: var(--white); border: 1px solid var(--line); border-radius: 1.25rem; padding: clamp(1.5rem, 3.5vw, 2.5rem); box-shadow: 0 30px 60px -40px rgb(14 21 48 / 0.35); }
.form .row { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1rem; }
.field { display: grid; gap: 0.4rem; margin-bottom: 1.1rem; }
.field label { font-weight: 500; font-size: 0.95rem; }
.field .hint { color: var(--slate); font-weight: 400; }
.field input, .field select, .field textarea {
  font: inherit; font-size: 1rem; color: var(--ink); background: var(--white);
  border: 1px solid #c9cfdf; border-radius: 0.6rem; padding: 0.7rem 0.85rem; width: 100%;
}
.field textarea { min-height: 7.5rem; resize: vertical; }
.field input:focus, .field select:focus, .field textarea:focus { outline: none; border-color: var(--blue); box-shadow: 0 0 0 3px rgb(47 91 255 / 0.2); }
.honeypot { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.form .button { width: 100%; margin-top: 0.5rem; }
.form .fine { margin-top: 1rem; color: var(--slate); font-size: 0.88rem; }
.form-status { margin-top: 1rem; font-weight: 500; }
.form-status.ok { color: #12703a; }
.form-status.err { color: #b42318; }

/* Footer */
.site-footer { background: var(--white); border-top: 1px solid var(--line); padding-block: 3rem; color: var(--slate); font-size: 0.95rem; }
.footer-grid { display: flex; flex-wrap: wrap; gap: 1.5rem 3rem; align-items: flex-start; justify-content: space-between; }
.footer-grid .brand { margin-bottom: 0.6rem; }
.footer-grid nav { display: flex; flex-wrap: wrap; gap: 0.75rem 1.75rem; }
.site-footer a { color: var(--slate); }
.site-footer a:hover { color: var(--ink); }
.site-footer .legal-line { margin-top: 2rem; font-size: 0.88rem; }

/* Legal pages */
.legal { padding-block: clamp(3rem, 7vw, 5rem); }
.legal h1 { font-size: clamp(2.3rem, 4.5vw, 3.25rem); }
.legal .updated { margin-top: 0.75rem; color: var(--slate); }
.legal h2 { font-size: 1.5rem; margin-top: 2.75rem; margin-bottom: 0.75rem; }
.legal p, .legal ul { max-width: var(--measure); }
.legal p + p, .legal ul + p, .legal p + ul { margin-top: 0.85rem; }
.legal ul { padding-left: 1.2rem; margin: 0.85rem 0 0; }
.legal li + li { margin-top: 0.35rem; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .answer .sources li.cited::before { animation: none; }
  .button, .faq summary::after { transition: none; }
}

@media (max-width: 960px) {
  .nav { display: none; }
  .site-header .button { margin-left: auto; }
  .hero-grid, .contact-grid { grid-template-columns: 1fr; }
  .causes { grid-template-columns: 1fr; }
  .pillars { grid-template-columns: 1fr; }
  .pillar + .pillar { border-left: 0; border-top: 1px solid var(--line); }
  .steps { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 640px) {
  .steps, .standards-grid, .form .row { grid-template-columns: 1fr; }
  .standards-grid div, .standards-grid div:nth-child(even) { padding: 1.25rem 0; border-left: 0; }
  .answer { padding: 1.1rem; }
  .answer .reply { grid-template-columns: 1fr; }
  .answer .bot { display: none; }
  .answer .sources, .answer figcaption { grid-column: 1; }
}