:root { --ink: #12100f; --paper: #f5f2ec; --line: rgba(18,16,15,.16); --muted: rgba(18,16,15,.62); --accent: #9e3f2a; }
* { box-sizing: border-box; }
body { margin: 0; background: var(--paper); color: var(--ink); font-family: Archivo, Arial, sans-serif; }
header, footer { align-items: center; border-bottom: 1px solid var(--line); display: flex; justify-content: space-between; padding: 24px clamp(24px, 5vw, 76px); }
.brand { align-items: center; color: inherit; display: flex; font-size: 24px; font-weight: 600; gap: 12px; letter-spacing: -.03em; text-decoration: none; }
.brand img { height: 30px; width: 30px; }
header p, .eyebrow, footer { font-family: "IBM Plex Mono", monospace; font-size: 11px; letter-spacing: .14em; text-transform: uppercase; }
header p, .eyebrow { color: var(--muted); margin: 0; }
main { border-left: 1px solid var(--line); border-right: 1px solid var(--line); margin: 0 auto; max-width: 1540px; }
.hero { align-items: center; display: grid; gap: clamp(32px, 7vw, 120px); grid-template-columns: minmax(110px, .4fr) minmax(0, 1.6fr); min-height: 68vh; padding: clamp(64px, 10vw, 150px) clamp(28px, 8vw, 150px); }
.hero-mark { max-width: 190px; width: 100%; }
h1, h2 { font-weight: 600; letter-spacing: -.055em; margin: 0; }
h1 { font-size: clamp(52px, 8.2vw, 128px); line-height: .9; max-width: 1000px; }
.lede { color: var(--muted); font-size: clamp(18px, 2vw, 27px); line-height: 1.42; margin: 30px 0 0; max-width: 690px; }
.actions { align-items: center; display: flex; flex-wrap: wrap; gap: 18px 28px; margin-top: 42px; }
.button { border: 1px solid var(--ink); color: var(--paper); background: var(--ink); font-family: "IBM Plex Mono", monospace; font-size: 13px; padding: 14px 18px; text-decoration: none; }
.button:hover { background: var(--accent); border-color: var(--accent); }
code { color: var(--muted); font-family: "IBM Plex Mono", monospace; font-size: 13px; }
.principle { border-top: 1px solid var(--line); display: grid; grid-template-columns: minmax(240px, .55fr) minmax(0, 1.45fr); }
.dark-mark { align-items: center; background: var(--ink); display: flex; justify-content: center; min-height: 310px; }
.dark-mark img { filter: invert(1) sepia(.12) saturate(.3); max-width: 126px; width: 35%; }
.principle > div:last-child { padding: clamp(38px, 6vw, 90px); }
h2 { font-size: clamp(33px, 4.6vw, 68px); line-height: .98; margin-top: 16px; max-width: 800px; }
.principle p:last-child { color: var(--muted); font-size: 18px; line-height: 1.55; max-width: 650px; }
footer { border-top: 1px solid var(--line); border-bottom: 0; color: var(--muted); }
footer span:first-child { color: var(--ink); font-family: Archivo, sans-serif; font-size: 15px; font-weight: 600; letter-spacing: -.02em; text-transform: none; }
@media (max-width: 680px) { header p { display: none; } .hero, .principle { grid-template-columns: 1fr; } .hero { min-height: 0; } .hero-mark { max-width: 90px; } .dark-mark { min-height: 180px; } footer { align-items: flex-start; flex-direction: column; gap: 10px; } }