/* SkyVectra website. Dark, calm, enterprise. Saira is bundled from @fontsource/saira (SIL OFL), see /fonts/OFL.txt. */

@font-face { font-family: 'Saira'; font-style: normal; font-weight: 300; font-display: swap; src: url('/fonts/saira-300.woff2') format('woff2'); }
@font-face { font-family: 'Saira'; font-style: normal; font-weight: 400; font-display: swap; src: url('/fonts/saira-400.woff2') format('woff2'); }
@font-face { font-family: 'Saira'; font-style: normal; font-weight: 500; font-display: swap; src: url('/fonts/saira-500.woff2') format('woff2'); }
@font-face { font-family: 'Saira'; font-style: normal; font-weight: 600; font-display: swap; src: url('/fonts/saira-600.woff2') format('woff2'); }

:root {
  --bg: #05080b;
  --panel: #0b1117;
  --line: rgba(213, 225, 234, 0.09);
  --line-strong: rgba(213, 225, 234, 0.18);
  --text: #d5e1ea;
  --bright: #e8f1f6;
  --muted: #7b8c9a;
  --teal: #3fd0c9;
  --teal-dim: rgba(63, 208, 201, 0.14);
  --gutter: 16px;
  --max: 1168px;
  color-scheme: dark;
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; scroll-padding-top: 80px; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: 'Saira', ui-sans-serif, system-ui, -apple-system, sans-serif;
  font-weight: 400;
  font-size: 17px;
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}
img { display: block; max-width: 100%; height: auto; }
a { color: inherit; }
figure { margin: 0; }
h1, h2, h3 { color: var(--bright); margin: 0; font-weight: 300; letter-spacing: -0.01em; }
h2 { font-size: clamp(1.8rem, 1.2rem + 2.2vw, 2.75rem); line-height: 1.15; }
h3 { font-size: 1.05rem; font-weight: 500; line-height: 1.35; letter-spacing: 0; }
p { margin: 0; }
:focus-visible { outline: 2px solid var(--teal); outline-offset: 3px; border-radius: 4px; }

.wrap { width: 100%; max-width: calc(var(--max) + 2 * var(--gutter)); margin: 0 auto; padding: 0 var(--gutter); }
@media (min-width: 720px) { :root { --gutter: 32px; } }

.skip { position: absolute; left: -9999px; top: 8px; z-index: 100; background: var(--teal); color: var(--bg); padding: 8px 14px; border-radius: 6px; text-decoration: none; }
.skip:focus { left: 8px; }
.visually-hidden { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }

/* Wordmark: "sky" Saira Light #e8f1f6, "vectra" Saira Medium teal */
.wordmark { font-family: 'Saira', sans-serif; font-size: 1.75rem; line-height: 1; text-decoration: none; letter-spacing: 0; white-space: nowrap; }
.wordmark .sky { font-weight: 300; color: #e8f1f6; }
.wordmark .vectra { font-weight: 500; color: var(--teal); }
.wordmark-small { font-size: 1.4rem; }

/* Header */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(5, 8, 11, 0.9);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
}
.header-row { display: flex; align-items: center; gap: 24px; height: 68px; }
.nav { display: none; gap: 32px; margin-left: auto; }
.nav a { color: var(--muted); text-decoration: none; font-size: 0.94rem; transition: color .15s; }
.nav a:hover { color: var(--bright); }
.header-row .btn { margin-left: auto; }
@media (min-width: 860px) {
  .nav { display: flex; }
  .header-row .btn { margin-left: 8px; }
}

/* Buttons */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  min-height: 48px; padding: 0 26px;
  background: var(--teal); color: #031312;
  font: 500 1rem/1 'Saira', sans-serif; letter-spacing: 0.01em;
  border: 1px solid var(--teal); border-radius: 4px;
  text-decoration: none; cursor: pointer;
  transition: background .15s, border-color .15s, color .15s;
}
.btn:hover { background: #5fe0da; border-color: #5fe0da; }
.btn-ghost { background: transparent; color: var(--bright); border-color: var(--line-strong); }
.btn-ghost:hover { background: transparent; border-color: var(--bright); }
.btn-small { min-height: 38px; padding: 0 16px; font-size: 0.9rem; }

/* Shared */
.eyebrow { color: var(--teal); font-size: 0.8rem; font-weight: 500; letter-spacing: 0.16em; text-transform: uppercase; margin-bottom: 18px; }
.section { padding: 96px 0; }
.section-panel { background: var(--panel); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
@media (min-width: 960px) { .section { padding: 136px 0; } }

/* Hero: text, then the radar picture edge to edge */
.hero { padding: 88px 0 0; }
.hero h1 { font-size: clamp(2.6rem, 1.4rem + 5.2vw, 5rem); line-height: 1.04; letter-spacing: -0.025em; max-width: 22ch; }
.hero h1 .accent { color: var(--teal); font-weight: 400; }
.hero .lead { margin-top: 28px; max-width: 620px; font-size: clamp(1.06rem, 1rem + 0.35vw, 1.24rem); line-height: 1.6; }
.cta-row { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 40px; }
@media (min-width: 960px) { .hero { padding-top: 120px; } }

.bleed { margin-top: 72px; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.bleed img { width: 100%; min-height: 340px; max-height: 78vh; object-fit: cover; object-position: 72% 50%; }
.bleed figcaption { padding-top: 14px; padding-bottom: 14px; color: var(--muted); font-size: 0.82rem; letter-spacing: 0.02em; }
@media (min-width: 960px) { .bleed { margin-top: 96px; } }

/* Principles: four words in a row, no boxes */
.principles { border-bottom: 1px solid var(--line); }
.principles-row { display: grid; grid-template-columns: 1fr; }
.principles-row > div { padding: 32px 0; border-top: 1px solid var(--line); }
.principles-row > div:first-child { border-top: 0; }
.principles h2 { font-size: 1.35rem; font-weight: 400; letter-spacing: 0; }
.principles p { color: var(--muted); margin-top: 8px; font-size: 0.96rem; }
@media (min-width: 640px) {
  .principles-row { grid-template-columns: 1fr 1fr; column-gap: 40px; }
  .principles-row > div:nth-child(2) { border-top: 0; }
}
@media (min-width: 1100px) {
  .principles-row { grid-template-columns: repeat(4, 1fr); column-gap: 0; }
  .principles-row > div { border-top: 0; padding: 48px 32px; border-left: 1px solid var(--line); }
  .principles-row > div:first-child { border-left: 0; padding-left: 0; }
}

/* Platform: text beside a screenshot */
.split { display: grid; gap: 56px; align-items: center; }
.split-text > p { color: var(--muted); margin-top: 22px; font-size: 1.06rem; }
@media (min-width: 960px) { .split { grid-template-columns: 4fr 6fr; gap: 64px; } }
.shot { border: 1px solid var(--line-strong); }
.ticks { list-style: none; padding: 0; margin: 32px 0 0; }
.ticks li { padding: 14px 0; border-top: 1px solid var(--line); color: var(--muted); font-size: 0.98rem; }
.ticks li:last-child { border-bottom: 1px solid var(--line); }
.ticks b { display: block; color: var(--bright); font-weight: 500; margin-bottom: 2px; }

/* Statement */
.statement { padding: 112px 0; background: var(--panel); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.statement h2 { font-size: clamp(2rem, 1.3rem + 3vw, 3.4rem); max-width: 18ch; }
.statement p { margin-top: 28px; max-width: 760px; font-size: clamp(1.1rem, 1rem + 0.5vw, 1.35rem); line-height: 1.55; font-weight: 300; }
@media (min-width: 960px) { .statement { padding: 152px 0; } }

/* 360 solution: a plain list */
.solutions-grid { display: grid; gap: 48px; }
.solutions-intro p { color: var(--muted); margin-top: 22px; font-size: 1.06rem; max-width: 460px; }
@media (min-width: 960px) {
  .solutions-grid { grid-template-columns: 5fr 7fr; gap: 80px; }
  .solutions-intro { position: sticky; top: 120px; align-self: start; }
}
.solutions { margin: 0; }
.solutions > div { display: grid; gap: 4px; padding: 18px 0; border-top: 1px solid var(--line); }
.solutions > div:last-child { border-bottom: 1px solid var(--line); }
.solutions dt { color: var(--bright); font-size: 1.15rem; }
.solutions dd { margin: 0; color: var(--muted); font-size: 0.98rem; }
@media (min-width: 640px) { .solutions > div { grid-template-columns: 200px 1fr; gap: 24px; align-items: baseline; } }
.solutions-close { margin-top: 28px; color: var(--teal); font-size: 1.1rem; }

/* About: the founders' line */
.about { border-top: 1px solid var(--line); }
.about h2 { font-size: clamp(2rem, 1.3rem + 3vw, 3.4rem); line-height: 1.1; }
.about h2 .accent { color: var(--teal); font-weight: 400; }
.about p { margin-top: 24px; max-width: 620px; color: var(--muted); font-size: 1.1rem; }

/* Security: two plain lists */
.intro { color: var(--muted); margin-top: 18px; font-size: 1.06rem; }
.security { display: grid; gap: 40px; margin-top: 48px; }
.security h3 { padding-bottom: 14px; border-bottom: 1px solid var(--line-strong); }
.security ul { list-style: none; margin: 0; padding: 0; }
.security li { padding: 13px 0; border-bottom: 1px solid var(--line); font-size: 0.97rem; }
@media (min-width: 900px) { .security { grid-template-columns: 1fr 1fr; gap: 64px; } }

/* Demo */
.demo-grid { display: grid; gap: 48px; align-items: start; }
.demo-grid > div > p:not(.eyebrow) { color: var(--muted); margin-top: 22px; font-size: 1.06rem; max-width: 460px; }
@media (min-width: 960px) { .demo-grid { grid-template-columns: 1fr 1.1fr; gap: 80px; } }
.demo-form { border: 1px solid var(--line-strong); padding: 28px 22px; }
@media (min-width: 640px) { .demo-form { padding: 36px; } }
.demo-form fieldset { border: 0; margin: 0; padding: 0; display: grid; gap: 18px; min-width: 0; }
.field-row { display: grid; gap: 18px; }
@media (min-width: 640px) { .field-row { grid-template-columns: 1fr 1fr; } }
.demo-form label { display: grid; gap: 8px; font-size: 0.86rem; color: var(--muted); letter-spacing: 0.02em; }
.demo-form input, .demo-form textarea {
  width: 100%; min-width: 0; background: var(--panel); color: var(--bright);
  border: 1px solid var(--line-strong); border-radius: 3px; padding: 12px 14px;
  font: 400 1rem/1.4 'Saira', sans-serif;
}
.demo-form textarea { resize: vertical; }
.demo-form input:focus, .demo-form textarea:focus { outline: none; border-color: var(--teal); box-shadow: 0 0 0 3px var(--teal-dim); }
.demo-form .btn { justify-self: start; margin-top: 4px; }
.form-note { color: var(--muted); font-size: 0.82rem; }
.form-note a { color: var(--text); }
.hp { position: absolute; left: -10000px; width: 1px; height: 1px; overflow: hidden; } /* honeypot, hidden from people */

/* Footer */
.site-footer { border-top: 1px solid var(--line); padding: 44px 0 52px; }
.footer-row { display: grid; gap: 18px; align-items: center; }
.footer-links { display: flex; flex-wrap: wrap; gap: 8px 28px; }
.footer-links a { color: var(--muted); text-decoration: none; font-size: 0.9rem; }
.footer-links a:hover { color: var(--bright); }
.copy { color: var(--muted); font-size: 0.86rem; }
@media (min-width: 900px) { .footer-row { grid-template-columns: auto 1fr auto; gap: 48px; } .footer-links { justify-content: center; } }

/* Simple pages: 404, demo sent / error, privacy */
.page { min-height: calc(100vh - 140px); padding: 96px 0; }
.page h1 { font-size: clamp(2.2rem, 1.4rem + 3.5vw, 3.6rem); line-height: 1.08; margin-top: 48px; }
.page .lead { margin-top: 24px; max-width: 620px; font-size: 1.15rem; }
.prose > * { max-width: 720px; }
.header-row .wordmark + .btn { margin-left: auto; } /* pages without the menu */
.prose h2 { font-size: 1.4rem; font-weight: 400; margin-top: 48px; }
.prose p, .prose li { color: var(--text); margin-top: 14px; }
.prose ul { padding-left: 20px; }
.prose a { color: var(--teal); }
.prose .updated { color: var(--muted); font-size: 0.9rem; margin-top: 18px; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { transition: none !important; }
}

/* Phones: tap targets at least 44 px, full-width hero buttons */
.wordmark { display: inline-flex; align-items: center; min-height: 44px; }
.footer-links a { display: inline-flex; align-items: center; min-height: 44px; }
@media (max-width: 859px) {
  .btn-small { min-height: 44px; }
}
@media (max-width: 479px) {
  .cta-row .btn { flex: 1 1 100%; }
}