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

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

body {
  font-family: var(--font-sans);
  font-size: var(--fs-body);
  line-height: 1.5;
  color: var(--color-text);
  background-color: var(--color-bg);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img { max-width: 100%; display: block; }

a {
  color: var(--color-secondary);
  text-decoration: none;
  transition: color 0.15s ease;
}

a:hover { color: var(--color-primary); }

/* ----- Headings ----- */
h1, h2, h3 {
  font-family: var(--font-serif);
  color: var(--color-text);
  font-weight: 500;
}

h1 {
  font-size: var(--fs-display);
  font-weight: 600;
  letter-spacing: -0.02em;
  line-height: 1.1;
  margin-bottom: var(--s-4);
}

h2 {
  font-size: var(--fs-h2);
  line-height: 1.2;
  margin-bottom: var(--s-4);
}

h3 {
  font-size: var(--fs-h3);
  line-height: 1.3;
  margin-bottom: var(--s-3);
}

h1 em, h2 em, h3 em {
  font-style: italic;
  font-weight: inherit;
}

p {
  margin-bottom: var(--s-3);
  color: var(--color-text-secondary);
}

/* ----- Container ----- */
.container {
  width: 100%;
  max-width: var(--content-max);
  margin: 0 auto;
  padding: 0 var(--gutter);
}

/* ----- Site Header / Navbar ----- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background-color: rgba(253, 252, 248, 0.9);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(26, 29, 30, 0.05);
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.02);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: var(--s-4);
  padding-bottom: var(--s-4);
  gap: var(--s-4);
}

.site-logo {
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: 24px;
  letter-spacing: -0.01em;
  color: var(--color-text);
}

.site-logo:hover { color: var(--color-text); }

.site-nav {
  display: flex;
  align-items: center;
  gap: var(--s-6);
  flex-wrap: wrap;
}

.site-nav a {
  font-family: var(--font-serif);
  font-style: italic;
  font-size: 17px;
  color: rgba(26, 29, 30, 0.6);
  font-weight: 500;
}

.site-nav a:hover {
  color: var(--color-secondary);
}

.site-nav a.active {
  color: var(--color-text);
  border-bottom: 2px solid var(--color-text);
  padding-bottom: 2px;
}

/* ----- Main ----- */
.site-main {
  flex: 1;
  padding: 0;
}

.page-hero {
  padding: var(--s-9) 0 var(--s-7);
  max-width: 800px;
}

.page-hero p {
  font-size: var(--fs-body-lg);
  line-height: 1.6;
  max-width: 640px;
  color: var(--color-text-secondary);
  margin-bottom: 0;
}

/* ----- Section dividers ----- */
.section-heading {
  display: flex;
  align-items: center;
  gap: var(--s-6);
  margin-bottom: var(--s-7);
}

.section-heading > div {
  max-width: 500px;
}

.section-heading h2 { margin-bottom: var(--s-2); }

.section-heading p {
  color: var(--color-text-secondary);
  margin-bottom: 0;
}

.section-heading .divider {
  flex: 1;
  height: 1px;
  background: rgba(26, 29, 30, 0.10);
}

/* ----- Footer ----- */
.site-footer {
  margin-top: var(--s-9);
  background-color: #FDFCF8;
  border-top: 1px solid rgba(26, 29, 30, 0.10);
}

.site-footer .container {
  padding-top: var(--s-7);
  padding-bottom: var(--s-7);
  display: flex;
  flex-direction: column;
  gap: var(--s-6);
}

.site-footer__brand {
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: 20px;
  color: var(--color-text);
}

.site-footer p {
  font-family: var(--font-serif);
  font-size: 14px;
  line-height: 1.6;
  color: rgba(26, 29, 30, 0.7);
  margin: 0;
}

.site-footer__bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--s-4);
  padding-top: var(--s-5);
  border-top: 1px solid rgba(26, 29, 30, 0.05);
}

/* ----- Mobile ----- */
@media (max-width: 768px) {
  h1 { font-size: 36px; }
  h2 { font-size: 26px; }

  .site-header .container { padding-top: var(--s-3); padding-bottom: var(--s-3); }
  .site-logo { font-size: 22px; }
  .site-nav { display: none; } /* mobile nav hidden, can be expanded later if needed */

  .page-hero { padding: var(--s-7) 0 var(--s-5); }
  .page-hero p { font-size: 17px; }

  .section-heading { flex-direction: column; align-items: flex-start; gap: var(--s-3); }
  .section-heading .divider { display: none; }
}