/* Paul Nisbett — QA & Cybersecurity Consultant
   Shared stylesheet for all pages. */

:root {
  --bg: #F7F8FA;
  --ink: #0F1B2D;
  --muted: #5A6577;
  --muted-2: #3F4A5C;
  --faint: #98A0AD;
  --border: #E4E7EC;
  --accent: #1F5AE0;
  --accent-hover: #17439E;
  --accent-tint: #EAF0FE;
  --accent-border: #B8C6E8;
  --btn-border: #D3D8E0;
  --dark: #0F1B2D;
  --dark-text: #B7C1D6;
  --dark-accent: #6E9BFF;
}

* { box-sizing: border-box; }

html, body { margin: 0; }

body {
  background: var(--bg);
  font-family: 'Archivo', sans-serif;
  color: var(--ink);
}

a { text-decoration: none; color: var(--accent); }
a:hover { color: var(--accent-hover); }

img { max-width: 100%; display: block; }

.page { min-height: 100vh; display: flex; flex-direction: column; }

/* ---------- Nav ---------- */

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 26px clamp(20px, 4vw, 56px);
  border-bottom: 1px solid var(--border);
  flex-wrap: wrap;
  gap: 14px;
}

.nav-brand { display: flex; align-items: center; gap: 12px; text-decoration: none; color: inherit; }

.logo-box {
  width: 34px;
  height: 34px;
  border-radius: 8px;
  background: var(--dark);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 15px;
}

.brand-name { font-weight: 700; font-size: 17px; letter-spacing: -0.01em; }

.nav-toggle {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
  margin: 0;
}

.burger {
  display: none;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border: 1px solid var(--btn-border);
  border-radius: 10px;
  background: #fff;
  cursor: pointer;
  flex-direction: column;
  gap: 5px;
}

.burger span {
  display: block;
  height: 2px;
  width: 20px;
  background: var(--ink);
  border-radius: 2px;
}

.nav-toggle:focus-visible ~ .burger { outline: 2px solid var(--accent); outline-offset: 2px; }

.nav-links {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 12px 24px;
  font-size: 15px;
  font-weight: 500;
  color: var(--muted);
}

.nav-links a.current { color: var(--ink); }

.nav-cta {
  background: var(--accent);
  color: #fff;
  padding: 10px 20px;
  border-radius: 8px;
  font-weight: 600;
}
.nav-cta:hover { color: #fff; background: var(--accent-hover); }

/* ---------- Hero ---------- */

.hero {
  padding: clamp(48px, 7vw, 88px) clamp(20px, 4vw, 56px) 64px;
  max-width: 900px;
  margin: 0 auto;
  text-align: center;
}

.hero--home {
  padding: clamp(56px, 9vw, 110px) clamp(20px, 4vw, 56px) clamp(52px, 8vw, 100px);
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
  background: var(--accent-tint);
  padding: 7px 14px;
  border-radius: 100px;
  margin-bottom: 28px;
}

.hero h1 {
  font-size: clamp(30px, 6vw, 52px);
  line-height: 1.05;
  font-weight: 800;
  letter-spacing: -0.03em;
  margin: 0 0 20px;
}

.hero--home h1 {
  font-size: clamp(34px, 7vw, 64px);
  line-height: 1.02;
}

.hero p {
  font-size: clamp(16px, 1.9vw, 19px);
  line-height: 1.55;
  color: var(--muted);
  margin: 0 auto;
  max-width: 560px;
}

.hero--home p { margin-bottom: 36px; }

.btn-row {
  display: flex;
  gap: 14px;
  justify-content: center;
  flex-wrap: wrap;
}

.btn {
  padding: 15px 28px;
  border-radius: 10px;
  font-weight: 600;
  font-size: 16px;
}

.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { color: #fff; background: var(--accent-hover); }

.btn-secondary { border: 1px solid var(--btn-border); color: var(--ink); }
.btn-secondary:hover { color: var(--ink); border-color: var(--accent); }

/* ---------- Strip (trust / credentials) ---------- */

.strip {
  padding: 26px clamp(20px, 4vw, 56px);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 12px 32px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 13px;
  color: var(--faint);
  text-align: center;
}

.strip .strip-label { color: var(--muted); font-weight: 500; }

/* ---------- Section header ---------- */

.section { padding: clamp(48px, 7vw, 88px) clamp(20px, 4vw, 56px); }

.section-header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 20px;
  margin-bottom: 44px;
  max-width: 1100px;
  margin-left: auto;
  margin-right: auto;
}

.eyebrow {
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 12px;
}

.section-header h2 {
  font-size: clamp(26px, 4.5vw, 40px);
  font-weight: 800;
  letter-spacing: -0.02em;
  margin: 0;
}

.section-header p {
  max-width: 360px;
  font-size: 16px;
  color: var(--muted);
  line-height: 1.5;
  margin: 0;
}

/* ---------- Grids ---------- */

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
  max-width: 1100px;
  margin: 0 auto;
}

.grid-4 {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 20px;
  max-width: 1100px;
  margin: 0 auto;
}

.grid-4 > .client-tile {
  flex: 0 0 calc((100% - 3 * 20px) / 4);
}

.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px;
  max-width: 820px;
  margin: 0 auto;
}

/* ---------- Cards ---------- */

.card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 32px;
}

.icon-box {
  width: 44px;
  height: 44px;
  border-radius: 10px;
  background: var(--accent-tint);
  color: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-family: 'JetBrains Mono', monospace;
  margin-bottom: 24px;
}

.card h3 { font-size: 21px; font-weight: 700; margin: 0 0 12px; }
.card p { font-size: 15px; line-height: 1.6; color: var(--muted); margin: 0; }

/* Contact method cards */

.contact-card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 32px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  color: inherit;
}
.contact-card:hover { color: inherit; border-color: var(--accent); }

.contact-card .icon-box { margin-bottom: 0; font-size: 13px; }
.contact-card h2 { font-size: 21px; font-weight: 700; margin: 0; }
.contact-card p { font-size: 15px; line-height: 1.6; color: var(--muted); margin: 0; }
.contact-card .contact-value { font-size: 16px; font-weight: 600; color: var(--accent); margin-top: 4px; }

/* Client logo tiles */

.client-tile {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 20px;
  height: 170px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.client-logo {
  width: 150px;
  max-width: 100%;
  height: auto;
  max-height: 100%;
  object-fit: contain;
}

.client-placeholder {
  width: 100%;
  height: 100%;
  border: 1px dashed var(--btn-border);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 8px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  color: var(--faint);
  background: color-mix(in srgb, var(--ink) 3%, transparent);
}

/* ---------- Dark about band ---------- */

.about-dark {
  padding: clamp(48px, 7vw, 88px) clamp(20px, 4vw, 56px);
  background: var(--dark);
  color: #fff;
}

.about-dark .about-inner { max-width: 900px; margin: 0 auto; }

.about-dark .eyebrow { color: var(--dark-accent); }

.about-dark h2 {
  font-size: clamp(24px, 4vw, 36px);
  font-weight: 800;
  letter-spacing: -0.02em;
  margin: 0 0 20px;
}

.about-dark p {
  font-size: clamp(15px, 1.7vw, 17px);
  line-height: 1.65;
  color: var(--dark-text);
  margin: 0 0 16px;
}
.about-dark p:last-child { margin-bottom: 0; }

/* ---------- Body copy (About page) ---------- */

.prose {
  padding: 24px clamp(20px, 4vw, 56px) 96px;
}
.prose .prose-inner {
  max-width: 800px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.prose p {
  font-size: 17px;
  line-height: 1.7;
  color: var(--muted-2);
  margin: 0;
}

/* ---------- Capability rows (Services page) ---------- */

.capabilities { padding: 40px clamp(20px, 4vw, 56px) 96px; }
.capabilities .capabilities-inner { max-width: 1000px; margin: 0 auto; }

.cap-row {
  display: grid;
  grid-template-columns: 60px 1fr 1.4fr;
  gap: 32px;
  padding: 36px 0;
  border-top: 1px solid var(--border);
  align-items: baseline;
}
.cap-row:last-child { border-bottom: 1px solid var(--border); }

.cap-row .cap-index {
  font-family: 'JetBrains Mono', monospace;
  color: var(--accent);
  font-size: 15px;
}

.cap-row h3 {
  font-size: clamp(20px, 2.6vw, 24px);
  font-weight: 700;
  margin: 0;
}

.cap-row p {
  font-size: 16px;
  line-height: 1.6;
  color: var(--muted);
  margin: 0;
}

/* ---------- Contact CTA band ---------- */

.contact-cta {
  padding: clamp(48px, 7vw, 80px) clamp(20px, 4vw, 56px);
  background: var(--accent-tint);
  text-align: center;
}

.contact-cta h2 {
  font-size: clamp(28px, 5.5vw, 44px);
  font-weight: 800;
  letter-spacing: -0.02em;
  margin: 0 0 16px;
}

.contact-cta p {
  font-size: clamp(16px, 1.8vw, 18px);
  color: var(--muted);
  margin: 0 0 32px;
}

.contact-cta .btn-secondary { border-color: var(--accent-border); }

/* ---------- Footer ---------- */

.footer {
  padding: 32px clamp(20px, 4vw, 56px);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px 20px;
  font-size: 14px;
  color: var(--faint);
}

.footer .footer-role { font-family: 'JetBrains Mono', monospace; }

.footer--bordered { border-top: 1px solid var(--border); }

/* ---------- 404 ---------- */

.error-hero {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: clamp(56px, 8vw, 96px) clamp(20px, 4vw, 56px);
}
.error-hero h1 { max-width: 760px; }
.error-hero p { max-width: 520px; margin-bottom: 36px; }

/* ---------- Responsive ---------- */

@media (max-width: 900px) {
  .burger { display: inline-flex; }
  .nav-links { display: none; width: 100%; }
  .nav-toggle:checked ~ .nav-links {
    display: flex;
    flex-direction: column;
    align-items: stretch;
    justify-content: flex-start;
    row-gap: 2px;
    padding-top: 8px;
  }
  .nav-links a { min-height: 44px; display: inline-flex; align-items: center; }
  .grid-3 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .grid-4 > .client-tile { flex-basis: calc((100% - 2 * 20px) / 3); }
  .cap-row { grid-template-columns: 1fr; gap: 10px; }
}

@media (max-width: 600px) {
  .grid-3, .grid-2 { grid-template-columns: 1fr; }
  .grid-4 > .client-tile { flex-basis: calc((100% - 20px) / 2); }
}