/* ============================================================
   BLU CAT DEV — Base Reset & Typography
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Playfair+Display:ital,wght@0,400;0,700;0,900;1,400;1,700&family=DM+Mono:wght@300;400;500&family=DM+Sans:wght@300;400;500;600&display=swap');

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  background-color: var(--bg-navy);
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

/* ── Headings ── */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-serif);
  color: var(--text-primary);
  line-height: 1.15;
  letter-spacing: -0.02em;
}

h1 { font-size: clamp(2.4rem, 5vw, 4rem); font-weight: 900; }
h2 { font-size: clamp(1.75rem, 3vw, 2.5rem); font-weight: 700; }
h3 { font-size: clamp(1.1rem, 2vw, 1.4rem); font-weight: 700; }

em { font-style: italic; }

/* ── Body text ── */
p {
  color: var(--text-muted);
  line-height: 1.75;
  font-size: 0.95rem;
}

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

/* ── Utility: screen-reader only ── */
.sr-only {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
  border: 0;
}

/* ── Section label (eyebrow text) ── */
.section-label {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--text-dim);
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: var(--space-md);
}
.section-label::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--border);
}

/* ── Page wrapper ── */
.page { min-height: 100vh; display: flex; flex-direction: column; }
.main  { flex: 1; }

/* ── Content container ── */
.container {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

/* ── Section padding ── */
.section {
  padding: var(--space-xl) var(--space-lg);
  max-width: var(--max-w);
  margin: 0 auto;
}

/* ── Dividers ── */
.divider {
  border: none;
  border-top: 1px solid var(--border);
  margin: 0 var(--space-lg);
}

/* ── Page header (inner pages) ── */
.page-header {
  padding: 4rem var(--space-lg) 3rem;
  max-width: var(--max-w);
  margin: 0 auto;
  border-bottom: 1px solid var(--border);
}
.page-header p {
  max-width: 540px;
  margin-top: 0.75rem;
}

/* ── Tags / Badges ── */
.tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.58rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 0.2rem 0.55rem;
  border-radius: var(--radius-sm);
  border: 1px solid;
}
.tag-cyan   { color: var(--cyan);  background: var(--cyan-dim);  border-color: var(--cyan-border); }
.tag-ember  { color: var(--ember); background: var(--ember-dim); border-color: var(--ember-border); }
.tag-silver { color: var(--text-muted); background: rgba(176,184,196,0.08); border-color: rgba(176,184,196,0.2); }
.tag-wip    { color: var(--cyan);  background: var(--cyan-dim);  border-color: var(--cyan-border); }

/* ── Highlight strip ── */
.highlight-strip {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 0.6rem 1rem;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--text-muted);
  margin-bottom: var(--space-lg);
}
.highlight-strip .dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--cyan);
  flex-shrink: 0;
}

/* ── WIP placeholder section ── */
.wip-placeholder {
  background: var(--bg-card);
  border: 1px dashed var(--border-light);
  border-radius: var(--radius-md);
  padding: var(--space-lg);
  text-align: center;
}
.wip-placeholder h3 { color: var(--cyan); margin-bottom: 0.5rem; font-size: 1.2rem; }
.wip-placeholder p  { color: var(--text-dim); font-size: 0.85rem; margin-bottom: 1.25rem; }

/* ── Accessibility note ── */
.access-note {
  background: rgba(67,209,227,0.04);
  border-left: 3px solid var(--cyan);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  padding: 1rem 1.25rem;
  margin-top: var(--space-md);
}
.access-note p {
  font-size: 0.82rem;
  font-style: italic;
  color: var(--text-muted);
  line-height: 1.7;
}

/* ── Error / alert bar ── */
.error-bar {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  background: var(--error-dim);
  border-left: 3px solid var(--error);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  padding: 0.7rem 1rem;
  font-size: 0.82rem;
  color: var(--error);
}

/* ── Hidden (for JS toggling) ── */
.hidden { display: none !important; }

/* ── Active page indicator ── */
[data-page].active { display: block; }
[data-page] { display: none; }
[data-page].active { display: block; }