:root{--tech-bg:#080a0c;--tech-surface:#101419;--tech-surface-raised:#171d24;--tech-line:#ffffff1f;--tech-line-strong:#ffffff3d;--tech-text:#f4f7f8;--tech-muted:#9aa6ad;--tech-soft:#c9d2d8;--tech-metal:#c6ccd1;--tech-signal:#82e6c7;--tech-signal-strong:#b2ffe9;--tech-alert:#ffb86b;--tech-danger:#ff7f7f;--tech-radius-xl:36px;--tech-radius-lg:28px;--tech-radius-md:16px;--tech-radius-sm:10px;--tech-shadow:0 24px 80px #00000052;--tech-max-width:1240px;--tech-equation-compact:clamp(1.35rem, 2.3vw, 2rem);--tech-equation-feature:clamp(2rem, 4vw, 3.8rem)}