/* ========================================
   bobrobles.com - Main Stylesheet
   Light theme with full-page background
   ======================================== */

/* --- Custom Properties --- */
:root {
  --bg-primary: rgba(255, 255, 204, 0.85);
  --bg-secondary: rgba(204, 255, 255, 0.9);
  --bg-card: rgba(255, 255, 220, 0.88);
  --bg-nav: rgba(255, 255, 210, 0.92);
  --text-primary: #3d2000;
  --text-secondary: #663300;
  --text-heading: #4a2800;
  --accent: #663300;
  --accent-hover: #7a3d10;
  --accent-subtle: rgba(102, 51, 0, 0.1);
  --border: rgba(102, 51, 0, 0.15);
  --shadow: rgba(80, 40, 0, 0.1);
  --max-width: 1100px;
  --nav-height: 60px;
  --radius: 8px;
  --transition: 0.3s ease;
}

/* --- Reset & Base --- */
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--nav-height);
}

body {
  font-family: Georgia, 'Palatino Linotype', 'Book Antiqua', Palatino, serif;
  background: url('../images/yosemite-valley.jpg') center/cover no-repeat fixed;
  background-color: #4a2800;
  color: var(--text-primary);
  line-height: 1.7;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

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

a {
  color: var(--accent);
  text-decoration: none;
  transition: color var(--transition);
}

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

h1, h2, h3, h4 {
  color: var(--text-heading);
  line-height: 1.3;
}

/* --- Navigation --- */
.site-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--bg-nav);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  box-shadow: 0 1px 4px var(--shadow);
  height: var(--nav-height);
}

.nav-container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.nav-logo {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--text-heading);
  letter-spacing: 0.5px;
}

.nav-logo:hover {
  color: var(--accent);
}

.nav-links {
  display: flex;
  list-style: none;
  gap: 0.25rem;
}

.nav-links a {
  color: var(--text-secondary);
  padding: 0.5rem 1rem;
  border-radius: var(--radius);
  font-size: 0.95rem;
  transition: all var(--transition);
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--text-heading);
  background: var(--accent-subtle);
}

/* Mobile nav toggle */
.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text-heading);
  margin: 5px 0;
  transition: all var(--transition);
  border-radius: 2px;
}

/* --- Main Content --- */
main {
  flex: 1;
}

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.5rem;
}

.section > .container {
  background: var(--bg-card);
  border-radius: var(--radius);
  padding: 2.5rem 2rem;
  box-shadow: 0 2px 12px var(--shadow);
}

/* --- Page Header / Hero --- */
.hero {
  text-align: center;
  padding: 5rem 2rem 4rem;
  background: var(--bg-card);
  max-width: var(--max-width);
  margin: 2rem auto;
  border-radius: var(--radius);
  box-shadow: 0 2px 12px var(--shadow);
}

.hero h1 {
  font-size: 3rem;
  margin-bottom: 1rem;
  letter-spacing: -0.5px;
}

.hero .accent {
  color: var(--accent);
}

.hero p {
  font-size: 1.2rem;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto;
}

.page-header {
  text-align: center;
  padding: 3.5rem 2rem 2.5rem;
  background: var(--bg-card);
  max-width: var(--max-width);
  margin: 2rem auto;
  border-radius: var(--radius);
  box-shadow: 0 2px 12px var(--shadow);
}

.page-header h1 {
  font-size: 2.4rem;
  margin-bottom: 0.5rem;
}

.page-header p {
  color: var(--text-secondary);
  font-size: 1.1rem;
}

/* --- Sections --- */
.section {
  padding: 4rem 0;
}

.section + .section {
  border-top: none;
}

.section-title {
  font-size: 1.8rem;
  margin-bottom: 1.5rem;
  position: relative;
  display: inline-block;
}

.section-title::after {
  content: '';
  position: absolute;
  bottom: -6px;
  left: 0;
  width: 50px;
  height: 3px;
  background: var(--accent);
  border-radius: 2px;
}

/* --- Home page feature cards --- */
.features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
  margin-top: 2rem;
}

.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2rem;
  box-shadow: 0 2px 8px var(--shadow);
  transition: transform var(--transition), box-shadow var(--transition);
}

.feature-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.12);
}

.feature-card h3 {
  margin-bottom: 0.75rem;
  font-size: 1.2rem;
}

.feature-card p {
  color: var(--text-secondary);
  font-size: 0.95rem;
}

/* --- Site link cards (anchor-based feature cards) --- */
a.site-link-card {
  display: block;
  text-decoration: none;
  color: inherit;
}

a.site-link-card:hover {
  color: inherit;
}

a.site-link-card h3 {
  color: var(--accent);
}

a.site-link-card:hover h3 {
  color: var(--accent-hover);
}

/* --- About page --- */
.about-content {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 3rem;
  align-items: start;
}

.about-image {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: 0 2px 8px var(--shadow);
  aspect-ratio: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  font-size: 0.9rem;
}

.about-text p {
  margin-bottom: 1.25rem;
  color: var(--text-secondary);
}

.about-text p:first-child {
  font-size: 1.1rem;
  color: var(--text-primary);
}

/* --- Gallery --- */
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: 1rem;
}

.gallery-item {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: 0 2px 8px var(--shadow);
  overflow: hidden;
  aspect-ratio: 4/3;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  font-size: 0.9rem;
  transition: transform var(--transition), box-shadow var(--transition);
  cursor: pointer;
}

.gallery-item:hover {
  transform: scale(1.02);
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.12);
}

.gallery-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* --- Lightbox --- */
.lightbox-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.85);
  z-index: 2000;
  display: flex;
  justify-content: center;
  align-items: flex-start;
  padding-top: 3.5rem;
  overflow-y: auto;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.25s ease, visibility 0.25s ease;
  touch-action: pan-y;
}

.lightbox-overlay.active {
  opacity: 1;
  visibility: visible;
}

.lightbox-card {
  background: #1a1a2e;
  border-radius: 12px;
  padding: 0.75rem;
  box-shadow: 0 8px 40px rgba(0, 0, 0, 0.6), 0 0 0 1px rgba(255, 255, 255, 0.1);
  max-width: 92vw;
  display: flex;
  flex-direction: column;
  align-items: center;
  transform: scale(0.92);
  transition: transform 0.25s ease;
  overflow: hidden;
}

.lightbox-overlay.active .lightbox-card {
  transform: scale(1);
}

.lightbox-card img {
  max-width: 88vw;
  max-height: 78vh;
  object-fit: contain;
  border-radius: 8px;
  transform-origin: center center;
  transition: transform 0.1s ease;
  user-select: none;
  -webkit-user-select: none;
}

.lightbox-caption {
  color: #b0b8cc;
  font-size: 0.9rem;
  text-align: center;
  padding: 0.6rem 0.5rem 0.25rem;
}

.lightbox-close {
  position: fixed;
  top: 0.75rem;
  right: 1rem;
  background: rgba(0, 0, 0, 0.5);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 50%;
  color: #fff;
  width: 2.5rem;
  height: 2.5rem;
  font-size: 1.5rem;
  cursor: pointer;
  z-index: 2001;
  line-height: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0.9;
  transition: opacity 0.2s, background 0.2s;
}

.lightbox-close:hover {
  opacity: 1;
  background: rgba(0, 0, 0, 0.8);
}

/* --- Archive Link --- */
.archive-link {
  text-align: center;
  margin-top: 2rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border);
}

.archive-link a {
  display: inline-block;
  padding: 0.75rem 2rem;
  background: var(--accent);
  color: #fff;
  border-radius: var(--radius);
  font-size: 1rem;
  font-weight: 600;
  transition: background var(--transition), transform var(--transition);
}

.archive-link a:hover {
  background: var(--accent-hover);
  color: #fff;
  transform: translateY(-1px);
}

.archive-link p {
  margin-top: 0.5rem;
  font-size: 0.9rem;
  color: var(--text-secondary);
  font-style: italic;
}

/* --- Blog / Bob's Thoughts --- */
.blog-posts {
  display: grid;
  gap: 1.5rem;
}

.blog-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2rem;
  box-shadow: 0 2px 8px var(--shadow);
  transition: box-shadow var(--transition);
}

.blog-card:hover {
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.12);
}

.blog-card .post-date {
  font-size: 0.85rem;
  color: var(--accent);
  margin-bottom: 0.5rem;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.blog-card h2 {
  font-size: 1.4rem;
  margin-bottom: 0.75rem;
}

.blog-card p {
  color: var(--text-secondary);
  margin-bottom: 1rem;
}

.blog-card .read-more {
  font-weight: 600;
  font-size: 0.9rem;
}

/* --- Contact --- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: start;
}

.contact-info h2 {
  font-size: 1.4rem;
  margin-bottom: 1rem;
}

.contact-info p {
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
}

.contact-detail {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1rem;
  color: var(--text-secondary);
}

.contact-detail strong {
  color: var(--text-primary);
}

.contact-form h2 {
  font-size: 1.4rem;
  margin-bottom: 1rem;
}

.form-group {
  margin-bottom: 1.25rem;
}

.form-group label {
  display: block;
  margin-bottom: 0.4rem;
  font-size: 0.9rem;
  color: var(--text-secondary);
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 0.75rem 1rem;
  background: rgba(255, 255, 255, 0.7);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text-primary);
  font-family: inherit;
  font-size: 1rem;
  transition: border-color var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--accent);
}

.form-group textarea {
  min-height: 150px;
  resize: vertical;
}

.btn {
  display: inline-block;
  padding: 0.75rem 2rem;
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: var(--radius);
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: background var(--transition), transform var(--transition);
}

.btn:hover {
  background: var(--accent-hover);
  color: #fff;
  transform: translateY(-1px);
}

/* --- Footer --- */
.site-footer {
  background: var(--bg-secondary);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-top: 1px solid var(--border);
  padding: 2rem 1.5rem;
  text-align: center;
  color: var(--text-secondary);
  font-size: 0.9rem;
  margin-top: auto;
}

.site-footer a {
  color: var(--text-secondary);
}

.site-footer a:hover {
  color: var(--accent);
}

/* --- Mobile Responsive --- */
@media (max-width: 768px) {
  .nav-toggle {
    display: block;
  }

  .nav-links {
    display: none;
    position: absolute;
    top: var(--nav-height);
    left: 0;
    right: 0;
    background: var(--bg-nav);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
    flex-direction: column;
    padding: 1rem;
    gap: 0;
  }

  .nav-links.open {
    display: flex;
  }

  .nav-links a {
    padding: 0.75rem 1rem;
  }

  .hero h1 {
    font-size: 2rem;
  }

  .hero p {
    font-size: 1rem;
  }

  .page-header h1 {
    font-size: 1.8rem;
  }

  .about-content {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .about-image {
    max-width: 250px;
    margin: 0 auto;
  }

  .gallery-grid {
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  }

  .contact-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .section {
    padding: 2.5rem 0;
  }
}

@media (max-width: 480px) {
  .hero {
    padding: 3rem 1.25rem 2.5rem;
    margin: 1rem;
  }

  .hero h1 {
    font-size: 1.7rem;
  }

  .features {
    grid-template-columns: 1fr;
  }

  .gallery-grid {
    grid-template-columns: 1fr 1fr;
    gap: 0.75rem;
  }
}