/* KB Analytical Solutions company pages (home, contact, privacy, terms). */
:root {
    --bg: #000; --panel: #09090b; --line: #1c1c20; --text: #f4f4f5; --muted: #a1a1aa; --dim: #71717a;
    --blue: #3b82f6; --cyan: #00d4ff; --wheat: #e0b04a; --earth: #c2703d; --bad: #f87171; --good: #4ade80;
    color-scheme: dark;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; font-family: 'Inter', sans-serif; background: var(--bg); color: var(--text); line-height: 1.6; }
a { color: inherit; }
.mono { font-family: 'JetBrains Mono', monospace; }
.wrap { max-width: 1120px; margin: 0 auto; padding: 0 24px; }
.grid-bg { background-image: radial-gradient(#18181b 1px, transparent 1px); background-size: 40px 40px; }

header { position: sticky; top: 0; z-index: 10; background: rgba(0,0,0,.85); backdrop-filter: blur(12px); border-bottom: 1px solid var(--line); }
header .wrap { display: flex; align-items: center; justify-content: space-between; height: 68px; gap: 16px; }
.brand { display: flex; align-items: center; gap: 12px; text-decoration: none; }
.brand-mark { width: 32px; height: 32px; border-radius: 6px; border: 1px solid rgba(59,130,246,.3); background: rgba(59,130,246,.1); display: grid; place-items: center; }
.brand-name { font-weight: 700; letter-spacing: -.01em; }
.brand-sub { display: block; font-size: 10px; letter-spacing: .3em; text-transform: uppercase; color: var(--dim); font-weight: 600; }
nav { display: flex; gap: 24px; font-size: 12px; font-weight: 600; letter-spacing: .12em; text-transform: uppercase; color: var(--dim); }
nav a { text-decoration: none; }
nav a:hover, nav a[aria-current="page"] { color: var(--text); }
.btn { display: inline-block; padding: 10px 18px; border-radius: 8px; background: var(--blue); color: #fff; text-decoration: none; font: inherit; font-size: 12px; font-weight: 700; letter-spacing: .1em; text-transform: uppercase; border: 0; cursor: pointer; }
.btn:hover { background: #2563eb; }
.btn-ghost { background: transparent; border: 1px solid #3f3f46; }
.btn-ghost:hover { background: #18181b; }

.hero { padding: 120px 0 96px; border-bottom: 1px solid var(--line); }
.eyebrow { font-size: 11px; letter-spacing: .3em; text-transform: uppercase; color: var(--dim); font-weight: 600; }
h1 { font-size: clamp(40px, 7vw, 72px); line-height: 1.05; letter-spacing: -.03em; margin: 20px 0 28px; max-width: 900px; }
h1 span { color: var(--muted); }
.lead { font-size: 19px; color: var(--muted); max-width: 680px; margin: 0 0 40px; }
.actions { display: flex; gap: 12px; flex-wrap: wrap; }

section { padding: 96px 0; border-bottom: 1px solid var(--line); scroll-margin-top: 68px; }
h2 { font-size: clamp(28px, 4vw, 40px); letter-spacing: -.02em; margin: 12px 0 16px; }
.section-lead { color: var(--muted); max-width: 640px; margin: 0 0 48px; }

.cols-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; }
.cols-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.card { position: relative; display: flex; flex-direction: column; background: var(--panel); border: 1px solid var(--line); border-radius: 14px; padding: 28px; text-decoration: none; transition: border-color .2s, transform .2s; }
a.card:hover { transform: translateY(-2px); border-color: color-mix(in srgb, var(--c, var(--blue)) 45%, transparent); }
.card .accent { width: 40px; height: 3px; border-radius: 2px; background: var(--c, var(--blue)); margin-bottom: 20px; }
.card h3 { font-size: 21px; margin: 0 0 8px; letter-spacing: -.01em; }
.card p { color: var(--muted); margin: 0 0 20px; font-size: 15px; }
.card .go { margin-top: auto; font-size: 12px; font-weight: 700; letter-spacing: .12em; text-transform: uppercase; color: var(--c, var(--blue)); }
.q { --c: var(--cyan); } .ag { --c: var(--wheat); } .oil { --c: var(--earth); }

.principles { display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; }
.principles h4 { margin: 0 0 8px; font-size: 17px; }
.principles p { margin: 0; color: var(--muted); font-size: 15px; }
.num { font-size: 12px; color: var(--blue); margin-bottom: 12px; }
.prose p { color: var(--muted); font-size: 17px; margin: 0 0 16px; }
.person { background: var(--panel); border: 1px solid var(--line); border-radius: 14px; padding: 28px; }
.person strong { display: block; font-size: 19px; }
.person .role { color: var(--dim); font-size: 14px; margin-bottom: 12px; }
.person a { color: var(--blue); }

/* Forms */
.form-card { background: var(--panel); border: 1px solid var(--line); border-radius: 14px; padding: 32px; }
label { display: block; font-size: 12px; font-weight: 600; letter-spacing: .08em; text-transform: uppercase; color: var(--dim); margin-bottom: 6px; }
input, select, textarea { width: 100%; font: inherit; font-size: 15px; color: var(--text); background: #000; border: 1px solid #27272a; border-radius: 10px; padding: 12px 14px; }
input:focus, select:focus, textarea:focus { outline: 2px solid rgba(59,130,246,.5); border-color: var(--blue); }
textarea { resize: vertical; }
.field { margin-bottom: 18px; }
.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.error { color: var(--bad); font-size: 14px; min-height: 1em; }
.success { text-align: center; padding: 48px 0; }
.success h2 { color: var(--good); }
.hidden { display: none !important; }
.trap { position: absolute; left: -9999px; }

/* Legal pages */
.legal { max-width: 760px; padding: 72px 0 96px; }
.legal h1 { font-size: clamp(34px, 5vw, 48px); }
.legal h2 { font-size: 20px; margin: 36px 0 10px; }
.legal p, .legal li { color: var(--muted); }
.legal .date { color: var(--dim); font-size: 13px; letter-spacing: .1em; text-transform: uppercase; }

footer { padding: 48px 0; color: var(--dim); font-size: 13px; }
footer .wrap { display: flex; justify-content: space-between; gap: 24px; flex-wrap: wrap; }
footer nav { font-size: 11px; flex-wrap: wrap; gap: 16px 24px; }

@media (max-width: 900px) {
    .cols-2, .cols-3, .principles { grid-template-columns: 1fr; }
    header nav { display: none; }
    .hero { padding: 80px 0 64px; }
    section { padding: 64px 0; }
}
@media (max-width: 560px) {
    .wrap { padding: 0 16px; }
    .card, .form-card, .person { padding: 22px; }
    .field-row { grid-template-columns: 1fr; }
}