/* ============================================
   ASTROPHOTOGRAPHY PORTFOLIO — STYLESHEET
   ============================================ */

/* --- CSS Custom Properties --- */
:root {
  --bg: #0a0a0f;
  --bg-surface: #12121a;
  --bg-surface-hover: #1a1a2e;
  --accent: #6366f1;
  --accent-hover: #818cf8;
  --accent-secondary: #a78bfa;
  --accent-warm: #f59e0b;
  --text: #e2e8f0;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --border: #1e293b;
  --border-light: #334155;
  --radius: 8px;
  --radius-lg: 12px;
  --shadow: 0 4px 24px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 8px 40px rgba(0, 0, 0, 0.6);
  --transition: 0.3s ease;
  --max-width: 1200px;
  --nav-height: 72px;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  background-color: var(--bg);
  color: var(--text);
  line-height: 1.7;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

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

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

ul, ol {
  list-style: none;
}

/* --- Typography --- */
h1, h2, h3, h4, h5, h6 {
  font-family: 'Playfair Display', Georgia, serif;
  font-weight: 700;
  line-height: 1.2;
  color: var(--text);
}

h1 { font-size: clamp(2rem, 5vw, 3.5rem); }
h2 { font-size: clamp(1.5rem, 3vw, 2.5rem); }
h3 { font-size: clamp(1.2rem, 2.5vw, 1.75rem); }
h4 { font-size: 1.25rem; }

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

.mono {
  font-family: 'JetBrains Mono', 'Fira Code', monospace;
  font-size: 0.85rem;
}

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

.section {
  padding: 5rem 0;
}

.section-header {
  text-align: center;
  margin-bottom: 3rem;
}

.section-header h2 {
  margin-bottom: 0.75rem;
}

.section-header p {
  max-width: 600px;
  margin: 0 auto;
}

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

.warm-text {
  color: var(--accent-warm);
}

.fade-in {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.75rem;
  border-radius: var(--radius);
  font-family: 'Inter', sans-serif;
  font-size: 0.95rem;
  font-weight: 500;
  cursor: pointer;
  border: none;
  transition: all var(--transition);
  text-decoration: none;
}

.btn-primary {
  background: var(--accent);
  color: #fff;
}

.btn-primary:hover {
  background: var(--accent-hover);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 4px 20px rgba(99, 102, 241, 0.4);
}

.btn-outline {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border-light);
}

.btn-outline:hover {
  border-color: var(--accent);
  color: var(--accent);
  transform: translateY(-2px);
}

.btn-ghost {
  background: transparent;
  color: var(--accent);
  padding: 0.5rem 1rem;
}

.btn-ghost:hover {
  background: rgba(99, 102, 241, 0.1);
}

/* --- Navigation --- */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav-height);
  background: rgba(10, 10, 15, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  z-index: 1000;
  transition: background var(--transition);
}

.navbar .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-family: 'Playfair Display', serif;
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--text);
  text-decoration: none;
}

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

.nav-logo-icon {
  width: 36px;
  height: 36px;
  background: linear-gradient(135deg, var(--accent), var(--accent-secondary));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.nav-links a {
  padding: 0.5rem 1rem;
  color: var(--text-secondary);
  font-size: 0.9rem;
  font-weight: 500;
  border-radius: var(--radius);
  transition: all var(--transition);
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--text);
  background: rgba(255, 255, 255, 0.05);
}

.nav-links a.active {
  color: var(--accent);
}

/* Hamburger */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.nav-toggle span {
  width: 24px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: all var(--transition);
}

.nav-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.nav-toggle.active span:nth-child(2) {
  opacity: 0;
}

.nav-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* --- Hero Section --- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding-top: var(--nav-height);
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 50% 50%, #1a1040 0%, #0a0a0f 70%);
  z-index: 0;
}

/* Star field animation */
.stars,
.stars-2,
.stars-3 {
  position: absolute;
  inset: 0;
  z-index: 1;
}

.stars {
  background-image:
    radial-gradient(1px 1px at 10% 20%, rgba(255,255,255,0.8), transparent),
    radial-gradient(1px 1px at 30% 65%, rgba(255,255,255,0.6), transparent),
    radial-gradient(1px 1px at 50% 10%, rgba(255,255,255,0.7), transparent),
    radial-gradient(1px 1px at 70% 40%, rgba(255,255,255,0.5), transparent),
    radial-gradient(1px 1px at 90% 80%, rgba(255,255,255,0.6), transparent),
    radial-gradient(1px 1px at 15% 85%, rgba(255,255,255,0.4), transparent),
    radial-gradient(1px 1px at 45% 50%, rgba(255,255,255,0.7), transparent),
    radial-gradient(1px 1px at 85% 15%, rgba(255,255,255,0.5), transparent),
    radial-gradient(1px 1px at 25% 35%, rgba(255,255,255,0.6), transparent),
    radial-gradient(1.5px 1.5px at 60% 70%, rgba(255,255,255,0.9), transparent),
    radial-gradient(1px 1px at 5% 55%, rgba(255,255,255,0.5), transparent),
    radial-gradient(1px 1px at 75% 90%, rgba(255,255,255,0.4), transparent),
    radial-gradient(1.5px 1.5px at 40% 5%, rgba(255,255,255,0.8), transparent),
    radial-gradient(1px 1px at 95% 45%, rgba(255,255,255,0.6), transparent),
    radial-gradient(1px 1px at 55% 95%, rgba(255,255,255,0.5), transparent);
  animation: drift 80s linear infinite;
}

.stars-2 {
  background-image:
    radial-gradient(1px 1px at 20% 30%, rgba(200,200,255,0.5), transparent),
    radial-gradient(1.5px 1.5px at 60% 20%, rgba(200,200,255,0.7), transparent),
    radial-gradient(1px 1px at 80% 60%, rgba(200,200,255,0.4), transparent),
    radial-gradient(1px 1px at 35% 80%, rgba(200,200,255,0.6), transparent),
    radial-gradient(1px 1px at 10% 50%, rgba(200,200,255,0.5), transparent),
    radial-gradient(1px 1px at 50% 40%, rgba(200,200,255,0.3), transparent),
    radial-gradient(1.5px 1.5px at 90% 10%, rgba(200,200,255,0.6), transparent),
    radial-gradient(1px 1px at 70% 75%, rgba(200,200,255,0.4), transparent);
  animation: drift 120s linear infinite reverse;
}

.stars-3 {
  background-image:
    radial-gradient(2px 2px at 25% 15%, rgba(255,220,150,0.9), transparent),
    radial-gradient(2px 2px at 75% 55%, rgba(150,180,255,0.8), transparent),
    radial-gradient(2px 2px at 45% 85%, rgba(255,200,200,0.7), transparent);
  animation: twinkle 4s ease-in-out infinite alternate;
}

@keyframes drift {
  from { transform: translate(0, 0); }
  to { transform: translate(-30px, -20px); }
}

@keyframes twinkle {
  0% { opacity: 0.5; }
  100% { opacity: 1; }
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 800px;
  padding: 2rem 1.5rem;
}

.hero h1 {
  margin-bottom: 1.25rem;
  background: linear-gradient(135deg, var(--text) 0%, var(--accent-secondary) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero .subtitle {
  font-size: clamp(1rem, 2vw, 1.25rem);
  color: var(--text-secondary);
  margin-bottom: 2rem;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.hero-buttons {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}

.scroll-indicator {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
  animation: bounce 2s ease-in-out infinite;
}

.scroll-indicator svg {
  width: 24px;
  height: 24px;
  stroke: var(--text-muted);
}

@keyframes bounce {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50% { transform: translateX(-50%) translateY(8px); }
}

/* --- Page Header (non-home pages) --- */
.page-header {
  padding: calc(var(--nav-height) + 3rem) 0 3rem;
  text-align: center;
  background: radial-gradient(ellipse at 50% 0%, #1a1040 0%, var(--bg) 60%);
}

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

.page-header p {
  max-width: 600px;
  margin: 0 auto;
}

.breadcrumb {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  margin-bottom: 1rem;
  font-size: 0.85rem;
  color: var(--text-muted);
}

.breadcrumb a {
  color: var(--text-muted);
}

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

/* --- Cards --- */
.card {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all var(--transition);
}

.card:hover {
  border-color: var(--border-light);
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.card-image {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16 / 10;
}

.card-image .placeholder-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.card:hover .card-image .placeholder-img {
  transform: scale(1.05);
}

.card-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(0,0,0,0.7) 0%, transparent 50%);
  display: flex;
  align-items: flex-end;
  padding: 1.25rem;
  opacity: 0;
  transition: opacity var(--transition);
}

.card:hover .card-overlay {
  opacity: 1;
}

.card-overlay-text {
  color: #fff;
  font-size: 0.85rem;
}

.card-body {
  padding: 1.25rem;
}

.card-body h3 {
  font-size: 1.15rem;
  margin-bottom: 0.5rem;
}

.card-body p {
  font-size: 0.9rem;
  margin-bottom: 0.75rem;
}

.card-meta {
  display: flex;
  align-items: center;
  gap: 1rem;
  font-size: 0.8rem;
  color: var(--text-muted);
}

.card-tag {
  display: inline-block;
  padding: 0.2rem 0.6rem;
  background: rgba(99, 102, 241, 0.15);
  color: var(--accent);
  border-radius: 4px;
  font-size: 0.75rem;
  font-weight: 500;
}

/* --- Placeholder Images (CSS gradient nebulae) --- */
.placeholder-img {
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255, 255, 255, 0.5);
  font-size: 0.85rem;
  font-family: 'Inter', sans-serif;
  text-align: center;
  padding: 1rem;
}

.placeholder-nebula-1 {
  background: radial-gradient(ellipse at 40% 50%, #5b2c8e 0%, #1a0a2e 40%, #0a0a15 70%),
              radial-gradient(ellipse at 70% 30%, rgba(200, 50, 80, 0.4), transparent 50%);
}

.placeholder-nebula-2 {
  background: radial-gradient(ellipse at 60% 40%, #1a3a5c 0%, #0c1a2e 40%, #0a0a15 70%),
              radial-gradient(ellipse at 30% 70%, rgba(50, 120, 200, 0.3), transparent 50%);
}

.placeholder-nebula-3 {
  background: radial-gradient(ellipse at 50% 50%, #4a1a1a 0%, #1a0a0a 40%, #0a0a15 70%),
              radial-gradient(ellipse at 30% 30%, rgba(255, 100, 50, 0.3), transparent 50%);
}

.placeholder-nebula-4 {
  background: radial-gradient(ellipse at 45% 55%, #1a3a2a 0%, #0a1a12 40%, #0a0a15 70%),
              radial-gradient(ellipse at 70% 40%, rgba(50, 200, 120, 0.2), transparent 50%);
}

.placeholder-planet {
  background: radial-gradient(circle at 45% 45%, #c8a050 20%, #8a6020 40%, #2a1a08 60%, #0a0a15 80%);
}

.placeholder-moon {
  background: radial-gradient(circle at 40% 40%, #d0d0c8 15%, #808078 35%, #2a2a28 55%, #0a0a15 75%);
}

.placeholder-widefield {
  background: linear-gradient(180deg, #0a0a15 0%, #101028 30%, #0a0a15 100%),
              radial-gradient(ellipse at 50% 60%, rgba(100, 80, 200, 0.15), transparent 60%);
}

.placeholder-portrait {
  background: radial-gradient(circle at 50% 40%, #2a2a35 0%, #15151e 50%, #0a0a15 80%);
}

.placeholder-equipment {
  background: linear-gradient(135deg, #15151e 0%, #1a1a28 50%, #12121a 100%);
}

/* --- Gallery --- */
.gallery-filters {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  margin-bottom: 2.5rem;
  flex-wrap: wrap;
}

.filter-btn {
  padding: 0.5rem 1.25rem;
  border: 1px solid var(--border);
  border-radius: 100px;
  background: transparent;
  color: var(--text-secondary);
  font-family: 'Inter', sans-serif;
  font-size: 0.85rem;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition);
}

.filter-btn:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.filter-btn.active {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 1.5rem;
}

.gallery-item {
  cursor: pointer;
  transition: opacity 0.4s ease, transform 0.4s ease;
}

.gallery-item.hidden {
  display: none;
}

.gallery-item .card-image {
  aspect-ratio: 4 / 3;
}

.gallery-item.featured .card-image {
  aspect-ratio: 16 / 10;
}

/* --- Lightbox --- */
.lightbox {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.92);
  backdrop-filter: blur(8px);
  z-index: 2000;
  display: none;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.lightbox.active {
  display: flex;
  opacity: 1;
}

.lightbox-close {
  position: absolute;
  top: 1.5rem;
  right: 1.5rem;
  background: none;
  border: none;
  color: var(--text);
  font-size: 1.5rem;
  cursor: pointer;
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  transition: background var(--transition);
  z-index: 10;
}

.lightbox-close:hover {
  background: rgba(255, 255, 255, 0.1);
}

.lightbox-content {
  display: flex;
  max-width: 1400px;
  max-height: 90vh;
  width: 95%;
  gap: 2rem;
  align-items: center;
}

.lightbox-image {
  flex: 1;
  max-height: 85vh;
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.lightbox-image .placeholder-img {
  width: 100%;
  height: 100%;
  min-height: 400px;
  aspect-ratio: 4 / 3;
}

.lightbox-info {
  width: 320px;
  flex-shrink: 0;
  padding: 2rem;
  background: var(--bg-surface);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
}

.lightbox-info h3 {
  margin-bottom: 0.25rem;
}

.lightbox-info .object-name {
  color: var(--accent);
  font-size: 0.9rem;
  margin-bottom: 1.25rem;
}

.lightbox-details {
  display: grid;
  gap: 0.75rem;
}

.lightbox-detail {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.85rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--border);
}

.lightbox-detail .label {
  color: var(--text-muted);
}

.lightbox-detail .value {
  color: var(--text);
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.8rem;
}

.lightbox-nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background: rgba(255, 255, 255, 0.1);
  border: none;
  color: var(--text);
  width: 48px;
  height: 48px;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  transition: background var(--transition);
  z-index: 10;
}

.lightbox-nav:hover {
  background: rgba(255, 255, 255, 0.2);
}

.lightbox-prev { left: 1.5rem; }
.lightbox-next { right: 1.5rem; }

/* --- Featured Grid (Home) --- */
.featured-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
}

/* --- About Page --- */
.about-hero {
  display: grid;
  grid-template-columns: 300px 1fr;
  gap: 3rem;
  align-items: center;
  margin-bottom: 4rem;
}

.about-portrait {
  width: 300px;
  height: 300px;
  border-radius: 50%;
  overflow: hidden;
  border: 3px solid var(--border);
}

.about-portrait .placeholder-img {
  width: 100%;
  height: 100%;
}

.about-text h2 {
  margin-bottom: 1rem;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1.5rem;
  margin: 3rem 0;
}

.stat-card {
  text-align: center;
  padding: 2rem 1.5rem;
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
}

.stat-number {
  font-family: 'Playfair Display', serif;
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--accent);
  line-height: 1;
  margin-bottom: 0.5rem;
}

.stat-label {
  font-size: 0.9rem;
  color: var(--text-secondary);
}

/* --- Equipment Page --- */
.equipment-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 1.5rem;
}

.equipment-card {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all var(--transition);
}

.equipment-card:hover {
  border-color: var(--border-light);
}

.equipment-card-image {
  aspect-ratio: 16 / 9;
  overflow: hidden;
}

.equipment-card-image .placeholder-img {
  width: 100%;
  height: 100%;
}

.equipment-card-body {
  padding: 1.5rem;
}

.equipment-card-body h3 {
  margin-bottom: 0.5rem;
}

.equipment-card-body p {
  font-size: 0.9rem;
  margin-bottom: 1rem;
}

.specs-list {
  display: grid;
  gap: 0.5rem;
}

.spec-item {
  display: flex;
  justify-content: space-between;
  font-size: 0.85rem;
  padding: 0.5rem 0;
  border-bottom: 1px solid var(--border);
}

.spec-item .spec-label {
  color: var(--text-muted);
}

.spec-item .spec-value {
  color: var(--text);
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.8rem;
}

.setup-section {
  margin-top: 4rem;
}

.setup-info {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1.5rem;
}

.setup-card {
  padding: 1.5rem;
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
}

.setup-card h4 {
  margin-bottom: 0.75rem;
  color: var(--accent);
}

/* --- Blog --- */
.blog-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
  gap: 1.5rem;
}

.blog-card .card-body {
  padding: 1.5rem;
}

.blog-card .card-meta {
  margin-top: 0.75rem;
}

/* Blog Post */
.blog-article {
  max-width: 780px;
  margin: 0 auto;
}

.blog-article-header {
  margin-bottom: 2.5rem;
}

.blog-article-header .card-tag {
  margin-bottom: 1rem;
}

.blog-article-header h1 {
  margin-bottom: 1rem;
}

.blog-article-meta {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  font-size: 0.9rem;
  color: var(--text-muted);
}

.blog-article-hero {
  margin-bottom: 2.5rem;
  border-radius: var(--radius-lg);
  overflow: hidden;
  aspect-ratio: 16 / 9;
}

.blog-article-hero .placeholder-img {
  width: 100%;
  height: 100%;
}

.blog-article-content h2 {
  margin-top: 2.5rem;
  margin-bottom: 1rem;
  font-size: 1.5rem;
}

.blog-article-content h3 {
  margin-top: 2rem;
  margin-bottom: 0.75rem;
  font-size: 1.2rem;
}

.blog-article-content p {
  margin-bottom: 1.25rem;
  line-height: 1.8;
}

.blog-article-content ul,
.blog-article-content ol {
  margin-bottom: 1.25rem;
  padding-left: 1.5rem;
}

.blog-article-content li {
  list-style: disc;
  margin-bottom: 0.5rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

.blog-article-content ol li {
  list-style: decimal;
}

.comparison-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin: 2rem 0;
}

.comparison-item {
  border-radius: var(--radius);
  overflow: hidden;
}

.comparison-item .placeholder-img {
  aspect-ratio: 4 / 3;
}

.comparison-label {
  text-align: center;
  font-size: 0.85rem;
  color: var(--text-muted);
  padding: 0.5rem;
  background: var(--bg-surface);
}

.related-posts {
  margin-top: 4rem;
  padding-top: 2rem;
  border-top: 1px solid var(--border);
}

.related-posts h3 {
  margin-bottom: 1.5rem;
}

.related-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1rem;
}

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

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.form-group label {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-secondary);
}

.form-group input,
.form-group textarea,
.form-group select {
  padding: 0.75rem 1rem;
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
  font-family: 'Inter', sans-serif;
  font-size: 0.95rem;
  transition: border-color var(--transition);
}

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

.form-group textarea {
  min-height: 140px;
  resize: vertical;
}

.contact-info h3 {
  margin-bottom: 1rem;
}

.contact-info p {
  margin-bottom: 2rem;
}

.social-links {
  display: flex;
  gap: 0.75rem;
  margin-top: 1.5rem;
}

.social-link {
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: var(--bg-surface);
  border: 1px solid var(--border);
  color: var(--text-secondary);
  font-size: 1.1rem;
  transition: all var(--transition);
}

.social-link:hover {
  border-color: var(--accent);
  color: var(--accent);
  transform: translateY(-2px);
}

.contact-detail {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 1rem 0;
  border-bottom: 1px solid var(--border);
}

.contact-detail-icon {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: rgba(99, 102, 241, 0.1);
  color: var(--accent);
  flex-shrink: 0;
}

.contact-detail-text {
  font-size: 0.9rem;
}

.contact-detail-text .label {
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* --- Footer --- */
.footer {
  padding: 3rem 0;
  border-top: 1px solid var(--border);
  margin-top: 2rem;
}

.footer-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1.5rem;
}

.footer-logo {
  font-family: 'Playfair Display', serif;
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text);
}

.footer-links {
  display: flex;
  gap: 1.5rem;
}

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

.footer-links a:hover {
  color: var(--text);
}

.footer-copy {
  font-size: 0.8rem;
  color: var(--text-muted);
  width: 100%;
  text-align: center;
  margin-top: 1.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border);
}

/* --- Intro Section (Home) --- */
.intro-section {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
}

.intro-text h2 {
  margin-bottom: 1rem;
}

.intro-text p {
  margin-bottom: 1.5rem;
}

.intro-image {
  border-radius: var(--radius-lg);
  overflow: hidden;
  aspect-ratio: 4 / 3;
}

.intro-image .placeholder-img {
  width: 100%;
  height: 100%;
}

/* --- Latest Post (Home) --- */
.latest-post {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.latest-post-image {
  aspect-ratio: 16 / 10;
  overflow: hidden;
}

.latest-post-image .placeholder-img {
  width: 100%;
  height: 100%;
}

.latest-post-body {
  padding: 2rem 2rem 2rem 0;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.latest-post-body .card-tag {
  width: fit-content;
  margin-bottom: 1rem;
}

.latest-post-body h3 {
  font-size: 1.5rem;
  margin-bottom: 0.75rem;
}

.latest-post-body p {
  margin-bottom: 1.5rem;
}

/* --- Responsive --- */
@media (max-width: 1024px) {
  .lightbox-content {
    flex-direction: column;
  }

  .lightbox-info {
    width: 100%;
    max-width: 500px;
  }

  .lightbox-image .placeholder-img {
    min-height: 250px;
  }
}

@media (max-width: 768px) {
  .nav-links {
    position: fixed;
    top: var(--nav-height);
    left: 0;
    right: 0;
    background: rgba(10, 10, 15, 0.98);
    backdrop-filter: blur(12px);
    flex-direction: column;
    padding: 1.5rem;
    gap: 0.25rem;
    border-bottom: 1px solid var(--border);
    transform: translateY(-100%);
    opacity: 0;
    pointer-events: none;
    transition: all 0.3s ease;
  }

  .nav-links.active {
    transform: translateY(0);
    opacity: 1;
    pointer-events: all;
  }

  .nav-links a {
    padding: 0.75rem 1rem;
    width: 100%;
    text-align: center;
    font-size: 1rem;
  }

  .nav-toggle {
    display: flex;
  }

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

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

  .about-hero {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .about-portrait {
    margin: 0 auto;
    width: 220px;
    height: 220px;
  }

  .intro-section {
    grid-template-columns: 1fr;
  }

  .latest-post {
    grid-template-columns: 1fr;
  }

  .latest-post-body {
    padding: 1.5rem;
  }

  .contact-layout {
    grid-template-columns: 1fr;
  }

  .gallery-grid {
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  }

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

  .comparison-container {
    grid-template-columns: 1fr;
  }

  .lightbox-nav {
    display: none;
  }

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

@media (max-width: 480px) {
  .section {
    padding: 3rem 0;
  }

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

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

  .hero-buttons {
    flex-direction: column;
    align-items: center;
  }
}