/* ==========================================================================
   BYBRIANADAM.COM — base styles
   Mobile-first. Edit the CSS custom properties below to change the palette,
   type scale, or spacing site-wide.
   ========================================================================== */

:root {
  --color-bg: #ffffff;
  --color-bg-alt: #f6f5f3;
  --color-text: #1a1a1a;
  --color-text-muted: #55554f;
  --color-accent: #1f4d3a;      /* deep green — swap for your brand color */
  --color-accent-contrast: #ffffff;
  --color-border: #e3e1db;

  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;

  --max-width: 1080px;
  --space-1: 0.5rem;
  --space-2: 1rem;
  --space-3: 1.5rem;
  --space-4: 2.5rem;
  --space-5: 4rem;
  --space-6: 6rem;

  --radius: 8px;
}

* { box-sizing: border-box; }

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

body {
  margin: 0;
  font-family: var(--font-sans);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.6;
  font-size: 17px;
}

h1, h2, h3 {
  line-height: 1.2;
  margin: 0 0 var(--space-2);
  font-weight: 700;
}

h1 { font-size: clamp(2rem, 5vw, 3.2rem); }
h2 { font-size: clamp(1.5rem, 3.5vw, 2.2rem); }

p { margin: 0 0 var(--space-2); }

a { color: var(--color-accent); }

.wrap {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-3);
}

.visually-hidden {
  position: absolute;
  width: 1px; height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}

.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  background: var(--color-accent);
  color: var(--color-accent-contrast);
  padding: var(--space-1) var(--space-2);
  z-index: 100;
}
.skip-link:focus {
  left: var(--space-2);
  top: var(--space-2);
}

/* Focus visibility for accessibility */
a:focus-visible, button:focus-visible, input:focus-visible {
  outline: 3px solid var(--color-accent);
  outline-offset: 2px;
}

/* ---------- Header / nav ---------- */

.site-header {
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: saturate(180%) blur(6px);
  z-index: 50;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: var(--space-2);
  padding-bottom: var(--space-2);
}

.brand {
  font-weight: 700;
  text-decoration: none;
  color: var(--color-text);
  font-size: 1.1rem;
}

.nav-toggle {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 4px;
  width: 32px;
  height: 32px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
}
.nav-toggle span {
  display: block;
  height: 2px;
  background: var(--color-text);
  border-radius: 2px;
}

.primary-nav {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background: var(--color-bg);
  border-bottom: 1px solid var(--color-border);
  flex-direction: column;
  padding: var(--space-2) var(--space-3) var(--space-3);
}
.primary-nav.is-open { display: flex; }

.primary-nav a {
  text-decoration: none;
  color: var(--color-text);
  padding: var(--space-1) 0;
  font-weight: 500;
}

.primary-nav .nav-cta {
  color: var(--color-accent);
  font-weight: 700;
}

@media (min-width: 800px) {
  .nav-toggle { display: none; }
  .primary-nav {
    display: flex;
    flex-direction: row;
    position: static;
    border: none;
    padding: 0;
    gap: var(--space-4);
    background: none;
  }
}

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

.hero {
  padding: var(--space-6) 0 var(--space-5);
  background: var(--color-bg-alt);
}

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--color-accent);
  margin-bottom: var(--space-2);
}

.hero-sub {
  font-size: 1.15rem;
  color: var(--color-text-muted);
  max-width: 640px;
}

.hero-oracle-line {
  font-size: 1rem;
  color: var(--color-text-muted);
  max-width: 640px;
  margin-top: var(--space-1);
}

.hero .stat-list {
  margin-top: var(--space-4);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-top: var(--space-3);
}

.headshot {
  margin-top: var(--space-4);
  width: 160px;
  height: 160px;
  object-fit: cover;
  border-radius: 50%;
  border: 3px solid var(--color-bg);
  box-shadow: 0 2px 10px rgba(0,0,0,0.08);
}

/* ---------- Buttons ---------- */

.btn {
  display: inline-block;
  text-decoration: none;
  font-weight: 700;
  padding: 0.75em 1.4em;
  border-radius: var(--radius);
  border: 2px solid transparent;
  cursor: pointer;
  font-size: 1rem;
  font-family: inherit;
}

.btn-primary {
  background: var(--color-accent);
  color: var(--color-accent-contrast);
}
.btn-primary:hover { opacity: 0.9; }

.btn-secondary {
  background: transparent;
  color: var(--color-accent);
  border-color: var(--color-accent);
}
.btn-secondary:hover { background: var(--color-bg-alt); }

/* ---------- Sections ---------- */

.section {
  padding: var(--space-5) 0;
}

.section-alt {
  background: var(--color-bg-alt);
}

.section-tag {
  color: var(--color-accent);
  font-weight: 700;
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: var(--space-2);
}

.lede {
  font-size: 1.1rem;
  color: var(--color-text-muted);
  max-width: 700px;
}

.two-col {
  max-width: 760px;
}

/* Credibility strip (stat cards) */

.stat-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: var(--space-2);
}

.stat-list li {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: var(--space-2);
}

.stat-num {
  display: block;
  font-weight: 700;
  font-size: 1.3rem;
  color: var(--color-accent);
}

.stat-label {
  display: block;
  color: var(--color-text-muted);
  font-size: 0.92rem;
}

/* Writing */

.writing-list {
  margin-top: var(--space-3);
}

.writing-item {
  padding: var(--space-2) 0;
  border-bottom: 1px solid var(--color-border);
}

.writing-empty {
  color: var(--color-text-muted);
  font-style: italic;
}

/* Signup */

.signup-form {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  max-width: 480px;
}

.signup-form input[type="email"] {
  flex: 1 1 220px;
  padding: 0.75em 1em;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  font-size: 1rem;
  font-family: inherit;
}

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

.site-footer {
  border-top: 1px solid var(--color-border);
  padding: var(--space-4) 0;
}

.footer-inner {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  justify-content: space-between;
  align-items: flex-start;
}

.footer-name {
  font-weight: 700;
  margin-bottom: 0.2em;
}

.footer-tagline {
  color: var(--color-text-muted);
  margin-bottom: 0;
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.footer-links a {
  text-decoration: none;
}
.footer-links a:hover { text-decoration: underline; }

.footer-copyright {
  width: 100%;
  color: var(--color-text-muted);
  font-size: 0.85rem;
  margin: var(--space-3) 0 0;
}

/* Respect reduced motion preference */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}