// PurdueGuard — aux pages CSS
// variety: swiss-grid | split-50-50 | sans-2weights | hi-contrast-bw+accent | alternating-light-dark | bordered

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
button { cursor: pointer; background: none; border: none; font: inherit; }

:root {
  --c-bg:        #060C1A;
  --c-bg-alt:    #0C1628;
  --c-fg:        #E8EDF8;
  --c-muted:     #5A6A8A;
  --c-accent:    #00BFFF;
  --c-accent-dim: rgba(0,191,255,0.10);
  --c-border:    #1A2742;
  --c-surface:   #0F1A30;

  --space-1: 0.5rem;
  --space-2: 1rem;
  --space-3: 1.5rem;
  --space-4: 2.5rem;
  --space-5: 4.5rem;
  --space-6: 8rem;

  --radius-sm: 2px;
  --radius-md: 4px;
  --radius-lg: 8px;

  --font-display: 'Inter', system-ui, -apple-system, sans-serif;
  --font-body:    'Inter', system-ui, -apple-system, sans-serif;
}

html { font-size: 16px; scroll-behavior: smooth; }

body {
  background-color: var(--c-bg);
  color: var(--c-fg);
  font-family: var(--font-body);
  font-size: clamp(0.9rem, 1.4vw, 1rem);
  line-height: 1.7;
}

h1, h2, h3, h4, h5 {
  font-family: var(--font-display);
  color: var(--c-fg);
  line-height: 1.15;
}
h1 { font-size: clamp(1.8rem, 3.5vw, 2.8rem); font-weight: 800; letter-spacing: -0.02em; }
h2 { font-size: clamp(1.2rem, 2vw, 1.6rem); font-weight: 800; letter-spacing: -0.02em; }
h3 { font-size: clamp(1rem, 1.5vw, 1.15rem); font-weight: 700; }
p  { color: var(--c-muted); max-width: 72ch; line-height: 1.8; }
ul li, ol li { color: var(--c-muted); line-height: 1.8; }

strong { color: var(--c-fg); font-weight: 700; }

.container {
  width: 100%;
  padding-inline: var(--space-4);
  margin-inline: auto;
  max-width: 960px;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: var(--c-bg);
  border-bottom: 1px solid var(--c-border);
  padding-block: var(--space-2);
}
.site-header .container {
  display: flex;
  align-items: center;
}
.brand {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}
.brand-name {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1rem, 1.8vw, 1.2rem);
  color: var(--c-fg);
  letter-spacing: -0.02em;
}
.logo-icon {
  width: 34px;
  height: 34px;
  flex-shrink: 0;
}

.page-hero {
  padding-block: var(--space-5);
  border-bottom: 1px solid var(--c-border);
  background-color: var(--c-bg-alt);
}
.page-tag {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--c-accent);
  margin-bottom: var(--space-2);
}
.page-hero h1 { margin-bottom: var(--space-2); }
.page-hero p  { font-size: 0.95rem; }

.page-content {
  padding-block: var(--space-5);
}

.about-blocks {
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
}

.about-block {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: var(--space-4);
  align-items: flex-start;
  padding-top: var(--space-4);
  border-top: 1px solid var(--c-border);
}
.about-block:first-child { border-top: none; padding-top: 0; }

.about-label {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--c-accent);
  padding-top: 4px;
}

.about-body h2 { margin-bottom: var(--space-2); }
.about-body p  { font-size: 0.9rem; }
.about-body p + p { margin-top: var(--space-2); }

.policy-content {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.policy-section h2 {
  font-size: 1.1rem;
  margin-bottom: var(--space-2);
  padding-bottom: var(--space-1);
  border-bottom: 1px solid var(--c-border);
}
.policy-section p { font-size: 0.9rem; }

.site-footer {
  background-color: var(--c-bg-alt);
  border-top: 1px solid var(--c-border);
  padding-block: var(--space-4) var(--space-3);
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-2);
}
.footer-bottom p { font-size: 0.8rem; color: var(--c-muted); max-width: 100%; }
.footer-links { display: flex; gap: var(--space-2); flex-wrap: wrap; }
.footer-links a { font-size: 0.8rem; color: var(--c-muted); }
.footer-links a:hover { color: var(--c-accent); }

@media (max-width: 640px) {
  .container { padding-inline: var(--space-2); }
  .about-block { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; align-items: flex-start; }
}