/* Adatto Auto — mobile-first stylesheet
   Base rules target small screens; min-width media queries progressively
   enhance the layout for tablet and desktop. */

:root {
  --navy: #1a2a52;
  --navy-dark: #101a35;
  --gold: #f0b323;
  --text: #333333;
  --text-muted: #5c5c5c;
  --bg: #ffffff;
  --bg-alt: #f4f5f7;
  --border: #dcdfe4;
  --max-width: 1100px;
  --focus-ring: 3px solid var(--gold);
  --font-heading: "Young Serif", Georgia, "Times New Roman", serif;
  --font-body: "Vollkorn", Georgia, "Times New Roman", serif;
}

* {
  box-sizing: border-box;
}

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

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 400 16px/1.6 var(--font-body);
}

h1, h2, h3 {
  margin: 0 0 0.6em;
  font-family: var(--font-heading);
  font-weight: 400;
  line-height: 1.25;
  color: var(--navy);
}

h1 { font-size: 1.9rem; }
h2 { font-size: 1.35rem; }
h3 { font-size: 1.1rem; }

p { margin: 0 0 1em; }

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

a {
  color: var(--navy);
  text-decoration: underline;
  text-underline-offset: 2px;
}

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

a:focus-visible,
button:focus-visible,
input:focus-visible {
  outline: var(--focus-ring);
  outline-offset: 2px;
}

ul { margin: 0 0 1em; padding-left: 1.25em; }

/* Utility */

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

.skip-link {
  position: absolute;
  left: 0.5rem;
  top: -3rem;
  background: var(--navy);
  color: #fff;
  padding: 0.6em 1em;
  z-index: 200;
  text-decoration: none;
  border-radius: 0 0 4px 4px;
  transition: top 0.15s ease;
}

.skip-link:focus {
  top: 0;
}

.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.25rem;
}

/* Header */

.site-header {
  border-bottom: 4px solid var(--gold);
  background: var(--bg);
}

.header-bar {
  display: flex;
  align-items: center;
  justify-content: center;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0.75rem 1.25rem;
}

.logo-link {
  display: inline-block;
  flex-shrink: 0;
}

.logo-link img {
  width: 120px;
  height: auto;
}

.hero-banner {
  position: relative;
  text-align: center;
  margin: 58px auto 0;
  max-width: var(--max-width);
  padding: 0 1.25rem;
}

.hero-banner-img {
  display: block;
  width: 100%;
  height: auto;
}

.hero-banner-img-desktop { display: none; }

.hero-logo-link {
  position: absolute;
  top: 0;
  left: 50%;
  transform: translate(-50%, -66.667%);
  z-index: 2;
}

.hero-logo {
  width: 150px;
  height: auto;
  filter: drop-shadow(0 3px 8px rgba(0, 0, 0, 0.4));
}

.primary-nav {
  background: linear-gradient(to bottom, #ffffff, #e7e7e7);
  border-bottom: 1px solid var(--border);
}

.primary-nav ul {
  list-style: none;
  margin: 0 auto;
  max-width: var(--max-width);
  padding: 0.4rem 0.5rem;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.15rem 0.25rem;
}

.primary-nav a {
  display: block;
  position: relative;
  padding: 0.7em 0.9em;
  text-decoration: none;
  font-family: var(--font-heading);
  font-size: 0.95rem;
  letter-spacing: 0.03em;
  color: var(--navy);
  border-radius: 4px;
  transition: color 0.15s ease, background-color 0.15s ease;
}

.primary-nav a:hover,
.primary-nav a:focus-visible {
  color: var(--navy-dark);
  background: rgba(0, 0, 0, 0.06);
}

.primary-nav a[aria-current="page"] {
  color: var(--navy-dark);
  background: rgba(0, 0, 0, 0.14);
}

/* Footer */

.site-footer {
  margin-top: 3rem;
  padding: 1.5rem 1.25rem;
  background: var(--bg-alt);
  color: var(--text);
  font-size: 0.9rem;
}

.site-footer .container {
  overflow: hidden;
}

.footer-logo {
  float: left;
  margin: 0 1.25rem 0.5rem 0;
}

.footer-logo img {
  width: 64px;
  height: auto;
}

.site-footer p {
  margin: 0 0 0.4em;
}

.site-footer a {
  color: var(--navy);
  font-weight: 600;
}

.site-footer a:hover,
.site-footer a:focus-visible { color: var(--gold); }

/* Main content */

main {
  display: block;
  padding: 1.75rem 0 1rem;
}

.lede {
  font-size: 1.05rem;
  color: var(--text-muted);
}

.btn {
  display: inline-block;
  padding: 0.65em 1.25em;
  background: var(--navy);
  color: #fff;
  text-decoration: none;
  border-radius: 6px;
  font-weight: 600;
  border: 2px solid var(--navy);
}

.btn:hover,
.btn:focus-visible {
  background: var(--gold);
  border-color: var(--gold);
  color: var(--navy-dark);
}

.btn-secondary {
  background: transparent;
  color: var(--navy);
}

.btn-secondary:hover,
.btn-secondary:focus-visible {
  background: var(--bg-alt);
  color: var(--navy);
  border-color: var(--navy);
}

.note {
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* Generic content sections */

.page-section {
  padding: 0 1.25rem;
  max-width: 46rem;
  margin: 0 auto 3rem;
}

.page-section.wide {
  max-width: var(--max-width);
}

.bio-figure {
  float: left;
  width: 40%;
  max-width: 200px;
  margin: 0 1.25rem 1rem 0;
}

.bio-figure img {
  border-radius: 6px;
  width: 100%;
}

.bio-figure figcaption {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-top: 0.4em;
}

.articles-box {
  clear: both;
  background: #eef1f5;
  border-radius: 10px;
  padding: 1.25rem 1.5rem;
  margin-top: 1rem;
}

.articles-box h2 {
  margin-top: 0;
}

.link-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.link-list li {
  padding: 0.6em 0;
  border-bottom: 1px solid var(--border);
}

.link-list li:last-child {
  border-bottom: 0;
}

/* Books */

.book-card {
  padding: 2rem 0;
  border-bottom: 1px solid var(--border);
  overflow: hidden;
}

.book-card:last-child { border-bottom: 0; }

.badge-new {
  display: inline-block;
  background: var(--gold);
  color: var(--navy-dark);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  padding: 0.15em 0.55em;
  border-radius: 3px;
  vertical-align: middle;
  margin-left: 0.5em;
}

.book-cover {
  width: 150px;
  margin: 0 0 1rem;
}

.book-cover img {
  max-width: 100%;
  border: 1px solid var(--border);
  border-radius: 4px;
}

.book-details {
  overflow: hidden;
}

.book-meta { color: var(--text-muted); font-size: 0.9rem; margin-bottom: 0.75em; }

.book-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  align-items: center;
  margin-top: 0.75rem;
}

.book-spreads {
  display: flex;
  gap: 0.6rem;
  flex-wrap: wrap;
  margin-top: 1rem;
}

.book-spreads a { flex-shrink: 0; }

.book-spreads img {
  width: 90px;
  border: 1px solid var(--border);
  border-radius: 4px;
}

/* Gallery */

.gallery-heading {
  padding-top: 0.5rem;
  font-size: 1.15rem;
}

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.6rem;
  padding: 0 1.25rem;
  margin-bottom: 2rem;
}

.gallery-grid a {
  display: block;
  line-height: 0;
}

.gallery-grid img {
  width: 100%;
  height: 100%;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  border-radius: 4px;
  border: 1px solid var(--border);
}

/* Lightbox dialog */

dialog.lightbox {
  border: 0;
  padding: 0;
  background: transparent;
  max-width: 92vw;
  max-height: 92vh;
}

dialog.lightbox::backdrop {
  background: rgba(10, 14, 26, 0.88);
}

.lightbox-inner {
  position: relative;
  background: #fff;
  padding: 2.5rem 0.75rem 0.75rem;
  border-radius: 6px;
  max-width: 92vw;
  max-height: 92vh;
  overflow: auto;
}

.lightbox-inner img {
  max-width: 100%;
  max-height: 78vh;
  margin: 0 auto;
}

.lightbox-caption {
  text-align: center;
  margin-top: 0.6rem;
  color: var(--text-muted);
  font-size: 0.9rem;
}

.lightbox-close {
  position: absolute;
  top: 0.4rem;
  right: 0.4rem;
  background: var(--navy);
  color: #fff;
  border: 0;
  border-radius: 50%;
  width: 2.2rem;
  height: 2.2rem;
  font-size: 1.2rem;
  line-height: 1;
  cursor: pointer;
}

.lightbox-close:hover { background: var(--gold); color: var(--navy-dark); }

@media (prefers-reduced-motion: no-preference) {
  dialog.lightbox { transition: opacity 0.15s ease; }
}

/* ===================== Tablet and up ===================== */

@media (min-width: 700px) {
  .logo-link img { width: 150px; }

  .hero-banner-img-mobile { display: none; }
  .hero-banner-img-desktop { display: block; }

  .hero-banner { margin-top: 74px; padding: 0 1.25rem; }
  .hero-logo { width: 190px; }

  .primary-nav ul {
    gap: 0.5rem 1.5rem;
    padding: 0.4rem 1.25rem;
  }

  .primary-nav a {
    padding: 0.9em 0.4em;
  }

  .book-cover {
    float: left;
    width: 190px;
    margin: 0 1.25rem 1rem 0;
  }

  .gallery-grid {
    grid-template-columns: repeat(3, 1fr);
    max-width: var(--max-width);
    margin: 0 auto;
  }
}

/* ===================== Desktop ===================== */

@media (min-width: 980px) {
  .gallery-grid {
    grid-template-columns: repeat(5, 1fr);
  }
}