/* ===== Theme tokens ===== */
:root{
  --bg: #fafafa;
  --surface: #ffffff;
  --text: #111111;
  --muted: #555555;
  --border: #eeeeee;
  --shadow: 0 10px 28px rgba(0,0,0,.08);
  --hero1: #ffffff;
  --hero2: #f5f7fb;
  --link: #111111;
}

/* Links: consistent, premium, no default purple */
a { color: var(--link); text-decoration: none; }
a:hover { text-decoration: underline; text-underline-offset: 3px; }
a:visited { color: var(--link); }


/* Dark theme overrides */
body.theme-dark{
  --bg: #0b0f17;
  --surface: rgba(255,255,255,.04);
  --text: #e9edf5;
  --muted: #a9b4c7;
  --border: rgba(255,255,255,.12);
  --shadow: 0 24px 70px rgba(0,0,0,.55);
  --hero1: rgba(255,255,255,.02);
  --hero2: rgba(255,255,255,.00);
  --link: #e9edf5;
}

/* ===== subtle page fade-in ===== */

/* Keep body visible so background doesn't flash white */
body { opacity: 1; transform: none; }


body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, Segoe UI, Roboto, sans-serif;
  line-height: 1.6;
  color: var(--text);
  background: var(--bg);
}

.container {
  width: 90%;
  max-width: 900px;
  margin: auto;
}

.narrow {
  max-width: 720px;
}

/* Improve readability of body text */
.section p,
.section li {
  font-size: 1.08rem;
  line-height: 1.75;
}

/* Better reading measure */
.section p { max-width: 62ch; }
.section ul { max-width: 68ch; }


/* Add breathing room between paragraphs */
.section p {
  margin-bottom: 1.2em;
}

/* Slight spacing before lists */
.section ul {
  margin-top: 0.6em;
  margin-bottom: 1.4em;
}

h2 {
  font-size: 1.65rem;
  letter-spacing: -0.015em;
  margin: 0 0 18px;
}

h3 {
  font-size: 1.12rem;
  letter-spacing: -0.01em;
  margin: 34px 0 10px;
}


a { color: var(--link); text-decoration: none; }
a:hover { text-decoration: underline; text-underline-offset: 3px; }

a:visited { color: var(--link); }

.section a, .footer a { text-decoration: underline; text-underline-offset: 3px; }
.nav a { text-decoration: none; }

.section p { max-width: 62ch; }   /* paragraphs read better */
.section ul { max-width: 68ch; }  /* lists can be a touch wider */


.header {
  background: color-mix(in srgb, var(--surface) 92%, transparent);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  backdrop-filter: blur(10px);
}

.section h3 {
  margin-top: 2.2em;
  margin-bottom: 0.6em;
}


.nav {
  display: flex;
  justify-content: space-between;
  padding: 16px 0;
}

.nav a {
  margin-left: 16px;
  text-decoration: none;
  color: var(--muted);
}
.nav a:hover{
  color: var(--text);
}


.hero {
  padding: 80px 0 40px;
  background: linear-gradient(180deg, var(--hero1), var(--hero2));
}


.hero-grid{
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
}

.hero-copy{
  flex: 1 1 auto;
  min-width: 0;
  max-width: 680px;   /* add this */
}


.hero-media{
  flex: 0 0 auto;
}

.headshot{
  width: 140px;
  height: 140px;
  border-radius: 999px;
  object-fit: cover;

  /* Fine-tune positioning */
  object-position: center 38%;

  border: 2px solid rgba(255,255,255,.28);
  box-shadow: 0 12px 30px rgba(0,0,0,.45);
}

.hero .subhead{
  max-width: 52ch;
}


/* Responsive: stack headshot under copy */
@media (max-width: 720px){
  .hero-grid{
    flex-direction: column-reverse;
    align-items: flex-start;
  }
  .headshot{
    width: 120px;
    height: 120px;
  }
}


h1 {
  font-size: 2.4rem;
  line-height: 1.2;
}

.subhead {
  font-size: 1.2rem;
  color: var(--muted);
  margin-top: 16px;
}

.section {
  padding: 60px 0;
}

.section.alt { background: color-mix(in srgb, var(--surface) 98%, transparent); }


h2 {
  margin-bottom: 20px;
}

h3 {
  margin-top: 30px;
}

.card {
  background: color-mix(in srgb, var(--surface) 92%, transparent);
  border: 1px solid color-mix(in srgb, var(--border) 80%, transparent);
  padding: 26px;
  margin-bottom: 16px;
  border-radius: 14px;
  box-shadow: var(--shadow);
  transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease;
}

.card:hover {
  transform: translateY(-3px);
}

.card p {
  margin: 10px 0 0;
  color: var(--muted);
}


/* link underline animation */

a {
  position: relative;
}

.footer {
  padding: 30px 0;
  text-align: center;
  color: var(--muted);
  border-top: 1px solid var(--border);
}


a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -2px;
  width: 0%;
  height: 1px;
  background: currentColor;
  transition: width .25s ease;
}

a:hover::after {
  width: 100%;
}

button,
.nav a {
  transition: transform .15s ease, opacity .15s ease;
}

.nav a:hover {
  opacity: .7;
}

button:active,
.nav a:active {
  transform: translateY(1px);
}

@media (prefers-reduced-motion: reduce) {
  * {
    transition: none !important;
    animation: none !important;
  }
}