/* =============================================
   jasonwisdom.com — Shared Stylesheet
   Blue palette, clean, mobile-first
   ============================================= */

:root {
  --blue-dark:    #0a1628;
  --blue-deep:    #0d2145;
  --blue-mid:     #1a3a6e;
  --blue-accent:  #2563eb;
  --blue-bright:  #3b82f6;
  --blue-light:   #93c5fd;
  --blue-pale:    #dbeafe;
  --white:        #ffffff;
  --off-white:    #f0f6ff;
  --text-main:    #e2eaf8;
  --text-muted:   #94a3b8;
  --border:       rgba(59, 130, 246, 0.2);
  --card-bg:      rgba(255,255,255,0.04);
  --card-hover:   rgba(59,130,246,0.10);
  --radius:       12px;
  --shadow:       0 4px 24px rgba(0,0,0,0.3);
}

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

html { scroll-behavior: smooth; }

body {
  font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
  background: var(--blue-dark);
  color: var(--text-main);
  line-height: 1.7;
  min-height: 100vh;
}

/* ── Nav ─────────────────────────────────── */
nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(10,22,40,0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  padding: 0 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 62px;
}

.nav-logo {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--white);
  text-decoration: none;
  letter-spacing: 0.02em;
}

.nav-logo span { color: var(--blue-bright); }

.nav-links {
  display: flex;
  gap: 1.8rem;
  list-style: none;
}

.nav-links a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.92rem;
  font-weight: 500;
  transition: color 0.2s;
  letter-spacing: 0.02em;
}

.nav-links a:hover,
.nav-links a.active { color: var(--blue-bright); }

.nav-hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  background: none;
  border: none;
  padding: 4px;
}
.nav-hamburger span {
  display: block; width: 24px; height: 2px;
  background: var(--text-muted); border-radius: 2px; transition: 0.3s;
}

/* ── Page wrapper ────────────────────────── */
main { max-width: 960px; margin: 0 auto; padding: 4rem 2rem 6rem; }

/* ── Section headings ────────────────────── */
.section-label {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--blue-bright);
  margin-bottom: 0.5rem;
}

h1 { font-size: clamp(2.2rem, 5vw, 3.4rem); font-weight: 800; line-height: 1.15; color: var(--white); }
h2 { font-size: clamp(1.6rem, 3vw, 2rem); font-weight: 700; color: var(--white); margin-bottom: 1rem; }
h3 { font-size: 1.1rem; font-weight: 600; color: var(--white); }

p { color: var(--text-main); margin-bottom: 1rem; }
a { color: var(--blue-bright); }

/* ── Cards ───────────────────────────────── */
.card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  transition: background 0.2s, border-color 0.2s, transform 0.2s;
}
.card:hover {
  background: var(--card-hover);
  border-color: var(--blue-bright);
  transform: translateY(-2px);
}

/* ── Buttons ─────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.65rem 1.4rem;
  border-radius: 8px;
  font-weight: 600;
  font-size: 0.9rem;
  text-decoration: none;
  transition: all 0.2s;
  cursor: pointer;
  border: none;
}
.btn-primary {
  background: var(--blue-accent);
  color: var(--white);
}
.btn-primary:hover { background: var(--blue-bright); color: var(--white); }
.btn-outline {
  background: transparent;
  color: var(--blue-bright);
  border: 1px solid var(--blue-bright);
}
.btn-outline:hover { background: var(--blue-accent); color: var(--white); }

/* ── Divider ─────────────────────────────── */
.divider {
  border: none;
  border-top: 1px solid var(--border);
  margin: 3rem 0;
}

/* ── Footer ──────────────────────────────── */
footer {
  text-align: center;
  padding: 2rem;
  color: var(--text-muted);
  font-size: 0.85rem;
  border-top: 1px solid var(--border);
}

/* ── Responsive nav ──────────────────────── */
@media (max-width: 640px) {
  .nav-links { display: none; flex-direction: column; position: absolute;
    top: 62px; left: 0; right: 0; background: var(--blue-deep);
    padding: 1rem 2rem 1.5rem; gap: 1.2rem; border-bottom: 1px solid var(--border); }
  .nav-links.open { display: flex; }
  .nav-hamburger { display: flex; }
  main { padding: 2.5rem 1.25rem 5rem; }
}