/* Northstrike Robotics. Shared stylesheet Dark, instrument-grade. IBM Plex Sans + Mono. Self-host option for later: download IBM Plex Sans/Mono woff2 files and replace the Google Fonts tags in each page . */ :root { --bg: #0A0C0F; --bg-raised: #11151A; --text: #E6E9ED; --text-dim: #98A1AC; --hairline: rgba(255, 255, 255, 0.08); --accent: #57A5C9; --accent-dim:#3E7B96; --container-max: 1180px; --pad-x: clamp(1.5rem, 5vw, 4rem); --pad-y: clamp(5rem, 10vw, 9rem); } *, *::before, *::after { box-sizing: border-box; } html { -webkit-text-size-adjust: 100%; } html, body { margin: 0; padding: 0; } body { background: var(--bg); color: var(--text); font-family: 'IBM Plex Sans', system-ui, sans-serif; font-weight: 400; font-size: 1.075rem; line-height: 1.65; -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; } img, svg { max-width: 100%; display: block; } a { color: var(--accent); text-decoration: none; transition: color 160ms ease; } a:hover { color: var(--text); } a:focus-visible, button:focus-visible, summary:focus-visible, input:focus-visible, textarea:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; } .skip-link { position: absolute; left: -9999px; top: 0; background: var(--accent); color: var(--bg); padding: 0.75rem 1rem; z-index: 200; } .skip-link:focus { left: 0; } .container { max-width: var(--container-max); margin: 0 auto; padding-left: var(--pad-x); padding-right: var(--pad-x); } /* Typography */ h1, h2, h3 { color: var(--text); font-weight: 600; margin: 0 0 1rem; line-height: 1.15; letter-spacing: -0.01em; } h1 { font-size: clamp(2.5rem, 6vw, 4.5rem); line-height: 1.05; letter-spacing: -0.022em; font-weight: 600; } h2 { font-size: clamp(1.75rem, 3vw, 2.5rem); } h3 { font-size: 1.25rem; font-weight: 600; } p { margin: 0 0 1.25rem; max-width: 68ch; color: var(--text-dim); } p.lead { color: var(--text); font-size: clamp(1.1rem, 1.4vw, 1.25rem); max-width: 64ch; } strong { color: var(--text); font-weight: 600; } .mono, .eyebrow { font-family: 'IBM Plex Mono', ui-monospace, monospace; text-transform: uppercase; letter-spacing: 0.12em; } .eyebrow { display: block; font-weight: 500; font-size: 0.75rem; color: var(--accent); margin-bottom: 1.25rem; } h2.section-index { font-family: 'IBM Plex Mono', ui-monospace, monospace; font-weight: 500; font-size: 0.78rem; letter-spacing: 0.16em; text-transform: uppercase; color: var(--accent); margin-bottom: 2.25rem; line-height: 1.4; } /* Header */ .site-header { position: sticky; top: 0; z-index: 100; background: rgba(10, 12, 15, 0.85); backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px); border-bottom: 1px solid var(--hairline); } .site-header .inner { display: flex; align-items: center; justify-content: space-between; gap: 1.5rem; padding-top: 1rem; padding-bottom: 1rem; position: relative; } .wordmark { font-family: 'IBM Plex Mono', ui-monospace, monospace; font-weight: 600; font-size: 0.875rem; letter-spacing: 0.18em; text-transform: uppercase; color: var(--text); white-space: nowrap; } .wordmark .dim { color: var(--text-dim); font-weight: 400; margin-left: 0.55em; } a.wordmark { color: var(--text); } a.wordmark:hover { color: var(--text); } .site-nav { display: flex; align-items: center; gap: 1.75rem; } .site-nav a { font-family: 'IBM Plex Mono', ui-monospace, monospace; font-weight: 500; font-size: 0.75rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--text-dim); } .site-nav a:hover { color: var(--text); } .site-nav .btn-primary { margin-left: 0.5rem; } .site-nav .btn-primary:hover { color: var(--bg); } .nav-toggle { display: none; background: none; border: none; cursor: pointer; padding: 0.5rem; color: var(--text); } .nav-toggle svg { width: 24px; height: 24px; } /* Buttons */ .btn { display: inline-block; font-family: 'IBM Plex Mono', ui-monospace, monospace; font-weight: 500; font-size: 0.78rem; letter-spacing: 0.14em; text-transform: uppercase; padding: 1rem 1.6rem; border-radius: 0; border: 1px solid transparent; cursor: pointer; text-align: center; line-height: 1; transition: background-color 160ms ease, color 160ms ease, border-color 160ms ease; } .btn-primary { background: var(--accent); color: var(--bg); border-color: var(--accent); } .btn-primary:hover { background: var(--accent-dim); border-color: var(--accent-dim); color: var(--bg); } .btn-secondary { background: transparent; color: var(--text); border-color: var(--hairline); } .btn-secondary:hover { color: var(--accent); border-color: var(--accent); } /* Sections */ main { display: block; } section { padding-top: var(--pad-y); padding-bottom: var(--pad-y); border-top: 1px solid var(--hairline); } section:first-of-type, .hero { border-top: 0; } /* Hero */ .hero { position: relative; overflow: hidden; padding-top: clamp(5.5rem, 11vw, 10rem); padding-bottom: clamp(5.5rem, 11vw, 10rem); } .hero .glow { position: absolute; inset: 0; pointer-events: none; z-index: 0; background: radial-gradient(60% 55% at 28% 38%, rgba(87, 165, 201, 0.06), transparent 70%); } .hero .mesh { position: absolute; inset: 0; width: 100%; height: 100%; pointer-events: none; z-index: 0; opacity: 0.14; } .hero .container { position: relative; z-index: 1; max-width: 940px; } .hero h1 { margin-bottom: 1.5rem; max-width: 18ch; } .hero .subhead { font-size: clamp(1.05rem, 1.6vw, 1.25rem); color: var(--text-dim); max-width: 62ch; margin-bottom: 2.5rem; } .hero .cta-row { display: flex; flex-wrap: wrap; gap: 1rem; } /* Capability list (Home §02) */ .cap-list { list-style: none; padding: 0; margin: 2.5rem 0 0; display: grid; grid-template-columns: 1fr; } .cap-list li { display: grid; grid-template-columns: 2.5rem 1fr; gap: 1.5rem; padding: 2rem 0; border-top: 1px solid var(--hairline); } .cap-list li:last-child { border-bottom: 1px solid var(--hairline); } .cap-list .idx { font-family: 'IBM Plex Mono', ui-monospace, monospace; font-size: 0.75rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--accent); padding-top: 0.35rem; } .cap-list .item-lead { display: block; font-weight: 600; color: var(--text); font-size: 1.125rem; margin-bottom: 0.5rem; } .cap-list p { margin: 0; } @media (min-width: 820px) { .cap-list.grid-2 { grid-template-columns: 1fr 1fr; column-gap: 3rem; } } /* Technology blocks */ .tech-blocks > div { padding: 2.5rem 0; border-top: 1px solid var(--hairline); } .tech-blocks > div:last-child { border-bottom: 1px solid var(--hairline); } .tech-blocks h3 { font-size: 1.25rem; font-weight: 600; color: var(--text); margin: 0 0 0.75rem; } .tech-blocks p { margin: 0; } /* FAQ */ .faq-category { margin-top: 4rem; } .faq-category:first-of-type { margin-top: 0; } .faq-category > h2 { font-family: 'IBM Plex Mono', ui-monospace, monospace; font-weight: 500; font-size: 0.78rem; letter-spacing: 0.16em; text-transform: uppercase; color: var(--accent); margin-bottom: 1rem; } .faq details { border-top: 1px solid var(--hairline); padding: 1.5rem 0; } .faq-category details:last-of-type { border-bottom: 1px solid var(--hairline); } .faq summary { cursor: pointer; list-style: none; font-size: 1.075rem; font-weight: 500; color: var(--text); display: flex; align-items: flex-start; justify-content: space-between; gap: 1.5rem; padding-right: 0.25rem; } .faq summary::-webkit-details-marker { display: none; } .faq summary::after { content: "+"; font-family: 'IBM Plex Mono', ui-monospace, monospace; color: var(--accent); font-size: 1.25rem; line-height: 1; flex-shrink: 0; transition: transform 200ms ease; margin-top: 0.15rem; } .faq details[open] summary::after { content: "−"; } .faq details > p { margin-top: 1rem; } .faq details > p:last-of-type { margin-bottom: 0; } /* Form */ .form { margin-top: 2.75rem; max-width: 640px; } .field { margin-bottom: 1.5rem; } .field label { display: block; font-family: 'IBM Plex Mono', ui-monospace, monospace; font-size: 0.7rem; letter-spacing: 0.14em; text-transform: uppercase; color: var(--text-dim); margin-bottom: 0.5rem; } .field input, .field textarea { width: 100%; background: var(--bg-raised); border: 1px solid var(--hairline); border-radius: 0; color: var(--text); font: inherit; padding: 0.85rem 1rem; transition: border-color 160ms ease, box-shadow 160ms ease; } .field textarea { min-height: 160px; resize: vertical; } .field input:focus, .field textarea:focus { border-color: var(--accent); outline: none; box-shadow: 0 0 0 2px rgba(87, 165, 201, 0.25); } .form-status { margin-top: 1.25rem; min-height: 1.5rem; font-size: 0.95rem; color: var(--text-dim); } .form-status.success { color: var(--accent); } .form-status.error { color: var(--text); } .fallback-email { margin-top: 3.5rem; padding-top: 2rem; border-top: 1px solid var(--hairline); color: var(--text-dim); } .fallback-email .label { display: block; margin-bottom: 0.5rem; font-family: 'IBM Plex Mono', ui-monospace, monospace; font-size: 0.7rem; letter-spacing: 0.14em; text-transform: uppercase; color: var(--text-dim); } .fallback-email a { font-size: 1.05rem; color: var(--accent); } .contact-meta { margin-top: 2rem; font-family: 'IBM Plex Mono', ui-monospace, monospace; font-size: 0.72rem; letter-spacing: 0.14em; text-transform: uppercase; color: var(--text-dim); } /* Closing CTA */ .closing-cta { text-align: left; } .closing-cta .container { display: flex; flex-direction: column; gap: 1.5rem; } /* Footer */ .site-footer { border-top: 1px solid var(--hairline); padding: 3rem 0; background: var(--bg); } .site-footer .inner { display: flex; flex-wrap: wrap; gap: 2rem; align-items: flex-start; justify-content: space-between; } .site-footer nav { display: flex; flex-wrap: wrap; gap: 1.5rem; } .site-footer nav a { font-family: 'IBM Plex Mono', ui-monospace, monospace; font-size: 0.7rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--text-dim); } .site-footer nav a:hover { color: var(--text); } .site-footer .meta { font-family: 'IBM Plex Mono', ui-monospace, monospace; font-size: 0.7rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--text-dim); line-height: 1.8; } .site-footer .meta a { color: var(--text-dim); } .site-footer .meta a:hover { color: var(--accent); } /* Mobile nav + responsive tweaks */ @media (max-width: 820px) { .nav-toggle { display: inline-flex; align-items: center; justify-content: center; } .site-nav { position: absolute; top: 100%; left: 0; right: 0; background: var(--bg); border-bottom: 1px solid var(--hairline); flex-direction: column; align-items: stretch; gap: 0; padding: 1rem var(--pad-x) 1.5rem; transform: translateY(-110%); transition: transform 220ms ease; pointer-events: none; } .site-nav.open { transform: translateY(0); pointer-events: auto; } .site-nav a { padding: 0.85rem 0; width: 100%; border-bottom: 1px solid var(--hairline); } .site-nav a:last-child { border-bottom: 0; } .site-nav .btn-primary { margin-left: 0; margin-top: 1rem; align-self: flex-start; } .cap-list li { grid-template-columns: 1fr; gap: 0.5rem; } .cap-list .idx { padding-top: 0; } } /* Scroll reveal */ .reveal { opacity: 0; transform: translateY(16px); transition: opacity 600ms ease, transform 600ms ease; } .reveal.visible { opacity: 1; transform: none; } /* Hero stagger */ .hero .eyebrow, .hero h1, .hero .subhead, .hero .cta-row { opacity: 0; transform: translateY(12px); animation: hero-rise 600ms cubic-bezier(0.2, 0.7, 0.2, 1) forwards; } .hero .eyebrow { animation-delay: 60ms; } .hero h1 { animation-delay: 180ms; } .hero .subhead { animation-delay: 320ms; } .hero .cta-row { animation-delay: 460ms; } @keyframes hero-rise { to { opacity: 1; transform: none; } } /* Mesh drift (subtle, motion-safe only) */ @media (prefers-reduced-motion: no-preference) { .hero .mesh { animation: mesh-drift 32s ease-in-out infinite alternate; } } @keyframes mesh-drift { from { transform: translate3d(0, 0, 0); } to { transform: translate3d(-10px, -6px, 0); } } @media (prefers-reduced-motion: reduce) { *, *::before, *::after { animation-duration: 0.01ms !important; animation-delay: 0ms !important; transition-duration: 0.01ms !important; } .reveal { opacity: 1; transform: none; } .hero .eyebrow, .hero h1, .hero .subhead, .hero .cta-row { opacity: 1; transform: none; } .hero .mesh { animation: none; } }