/* IBV style — sourced from ibvgroup.com (Red Hat Display, amber hero,
   brand red CTAs, cream sections). */

:root {
    --bg: #ffffff;
    --bg-cream: #fffcf1;
    --bg-amber: #fbb504;
    --ink: #222222;
    --ink-soft: #333333;
    --ink-muted: #6b6f78;
    --rule: #ececec;
    --brand-red: #dd000f;
    --brand-red-hover: #b3000c;
    --on-amber: #ffffff;
    --shell-max: 1200px;
    --gutter: 2rem;
    --header-h: 90px;
}

* { box-sizing: border-box; }

html, body {
    margin: 0;
    padding: 0;
    background: var(--bg);
    color: var(--ink-soft);
    font-family: 'Red Hat Display', -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
    font-size: 16px;
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

a {
    color: var(--ink);
    text-decoration: none;
}
a:hover { color: var(--brand-red); }

h1, h2, h3, h4 {
    font-family: 'Red Hat Display', sans-serif;
    font-weight: 300;
    color: var(--ink);
    margin: 0 0 0.5em;
    letter-spacing: -0.005em;
}
h1 { font-size: 4.4rem; line-height: 1.0; }
h2 { font-size: 3rem;   line-height: 1.08; }
h3 { font-size: 1.5rem; line-height: 1.2;  font-weight: 500; }
h4 { font-size: 1rem;   line-height: 1.3;  font-weight: 600; }

p  { margin: 0 0 1em; max-width: 65ch; }
.muted { color: var(--ink-muted); }
strong { font-weight: 600; }

.eyebrow {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.18em;
    color: var(--ink-muted);
    font-weight: 600;
    margin-bottom: 0.75rem;
    display: block;
}

/* Shell */
.shell {
    max-width: var(--shell-max);
    margin: 0 auto;
    padding: 0 var(--gutter);
}

/* Header — fixed, transparent over hero, amber/cream-friendly */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 50;
    background: rgba(255, 255, 255, 0.92);
    backdrop-filter: saturate(140%) blur(8px);
    border-bottom: 1px solid rgba(0, 0, 0, 0.06);
}
.site-header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: var(--header-h);
}
.site-brand {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    font-weight: 500;
    color: var(--ink);
}
.site-brand img { display: block; height: 32px; width: auto; }
.site-brand .brand-divider {
    width: 1px;
    height: 22px;
    background: rgba(0, 0, 0, 0.18);
}
.site-brand .brand-product {
    font-size: 0.875rem;
    letter-spacing: 0.04em;
    color: var(--ink-soft);
    font-weight: 400;
}

.site-nav {
    display: flex;
    gap: 2.5rem;
    align-items: center;
    font-size: 0.9375rem;
}
.site-nav a {
    color: var(--ink);
    font-weight: 500;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    font-size: 0.8125rem;
}
.site-nav a:hover,
.site-nav a.is-active { color: var(--brand-red); }
.site-nav a.cta-link { color: var(--brand-red); }
.site-nav a.cta-link:hover { color: var(--brand-red-hover); }

/* Push content below the fixed header. */
main { padding-top: var(--header-h); }

/* Hero — amber band, white type, large light heading. */
.hero {
    background: var(--bg-amber);
    color: var(--on-amber);
    padding: 6rem 0 5rem;
    position: relative;
    overflow: hidden;
}
.hero .eyebrow { color: rgba(255, 255, 255, 0.85); }
.hero h1 { color: var(--on-amber); max-width: 22ch; }
.hero p  { color: rgba(255, 255, 255, 0.92); font-size: 1.125rem; max-width: 56ch; }
.hero .muted { color: rgba(255, 255, 255, 0.75); }
.hero .btn-row { margin-top: 2rem; }

/* Sub-hero variant (used on Inputs / Preview / Export — keeps the amber
   wash but tightens vertical rhythm). */
.hero.compact { padding: 4rem 0 3rem; }

/* Hero on cream — used when we want a softer landing band. */
.hero.cream { background: var(--bg-cream); color: var(--ink); }
.hero.cream h1 { color: var(--ink); }
.hero.cream p  { color: var(--ink-soft); }
.hero.cream .eyebrow { color: var(--ink-muted); }

/* Sections */
section.block {
    padding: 5rem 0;
    border-top: 1px solid var(--rule);
    background: var(--bg);
}
section.block.cream { background: var(--bg-cream); border-top-color: transparent; }
section.block:first-of-type { border-top: 0; }
section.block .block-head {
    display: grid;
    grid-template-columns: minmax(180px, 260px) 1fr;
    gap: 3rem;
    margin-bottom: 2.5rem;
    align-items: start;
}
@media (max-width: 720px) {
    section.block { padding: 3rem 0; }
    section.block .block-head { grid-template-columns: 1fr; gap: 0.5rem; }
}

/* Vertical list (home) */
.vertical-list {
    list-style: none;
    padding: 0;
    margin: 0;
    border-top: 1px solid var(--rule);
}
.vertical-list li {
    display: grid;
    grid-template-columns: 1fr auto;
    align-items: center;
    gap: 2rem;
    padding: 2rem 0;
    border-bottom: 1px solid var(--rule);
    transition: padding-left 160ms ease;
}
.vertical-list li:hover { padding-left: 0.5rem; }
.vertical-list .name { font-size: 1.5rem; font-weight: 400; color: var(--ink); }
.vertical-list .actions { display: flex; gap: 1.75rem; font-size: 0.8125rem; }
.vertical-list .actions a {
    color: var(--ink-muted);
    text-transform: uppercase;
    letter-spacing: 0.14em;
    font-weight: 600;
}
.vertical-list .actions a:hover { color: var(--brand-red); }

/* Buttons — solid red CTA on amber, outlined on cream/white. */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.95rem 1.75rem;
    background: var(--brand-red);
    color: #ffffff;
    border: 1px solid var(--brand-red);
    font-size: 0.8125rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.14em;
    cursor: pointer;
    transition: background-color 140ms ease, color 140ms ease, border-color 140ms ease;
}
.btn:hover { background: var(--brand-red-hover); border-color: var(--brand-red-hover); color: #ffffff; }
.btn-secondary {
    background: transparent;
    color: #ffffff;
    border-color: rgba(255, 255, 255, 0.85);
}
.btn-secondary:hover { background: #ffffff; color: var(--ink); border-color: #ffffff; }
.hero.cream .btn-secondary,
section.block .btn-secondary {
    color: var(--ink);
    border-color: var(--ink);
}
.hero.cream .btn-secondary:hover,
section.block .btn-secondary:hover {
    background: var(--ink); color: #ffffff; border-color: var(--ink);
}
.btn-row { display: flex; gap: 1rem; flex-wrap: wrap; }

/* Text-link CTA with arrow ("READ MORE →" style on ibvgroup.com). */
.cta-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--brand-red);
    font-size: 0.8125rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.14em;
}
.cta-link::after { content: "→"; transition: transform 160ms ease; }
.cta-link:hover { color: var(--brand-red-hover); }
.cta-link:hover::after { transform: translateX(3px); }

/* Sub-nav (breadcrumb-ish) */
.subnav {
    display: flex;
    gap: 2rem;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.14em;
    font-weight: 600;
    color: var(--ink-muted);
    padding: 1.75rem 0 0;
}
.subnav a { color: var(--ink-muted); }
.subnav a:hover, .subnav a.is-active { color: var(--brand-red); }

/* Scenario columns (preview) */
.scenarios {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0;
    border-top: 1px solid var(--rule);
    border-bottom: 1px solid var(--rule);
    background: var(--bg);
}
.scenarios .col {
    padding: 2rem 1.5rem;
    border-right: 1px solid var(--rule);
}
.scenarios .col:last-child { border-right: 0; }
.scenarios .col h4 {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.18em;
    color: var(--ink-muted);
    margin-bottom: 1.25rem;
    font-weight: 600;
}
.scenarios .metric {
    display: flex;
    justify-content: space-between;
    padding: 0.65rem 0;
    border-bottom: 1px solid var(--rule);
    font-size: 0.9375rem;
}
.scenarios .metric:last-child { border-bottom: 0; }
.scenarios .metric .label { color: var(--ink-muted); }
.scenarios .metric .value {
    font-variant-numeric: tabular-nums;
    font-weight: 600;
    color: var(--ink);
}

@media (max-width: 720px) {
    .scenarios { grid-template-columns: 1fr; }
    .scenarios .col { border-right: 0; border-bottom: 1px solid var(--rule); }
    .scenarios .col:last-child { border-bottom: 0; }
    h1 { font-size: 2.75rem; }
    h2 { font-size: 2rem; }
}

/* Footer — dark band, amber chevron logo accent. */
.site-footer {
    background: var(--bg-cream);
    border-top: 1px solid var(--rule);
    padding: 3rem 0;
    color: var(--ink-muted);
    font-size: 0.8125rem;
}
.site-footer-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 2rem;
    flex-wrap: wrap;
}
.site-footer img { height: 28px; width: auto; opacity: 0.9; }