/* ========================================
   RESET & BASE STYLES
   ======================================== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  /* Color Palette */
  --primary-color: #054ca3;
  --primary-dark: #043a7a;
  --primary-light: #1a6dd4;
  --secondary-color: #ff6b35;
  --accent-color: #4ecdc4;
  --dark-bg: #0a1628;
  --darker-bg: #050c16;
  --light-bg: #f8fafc;
  --white: #ffffff;
  --text-primary: #1e293b;
  --text-secondary: #64748b;
  --text-light: #cbd5e1;
  --border-color: #e2e8f0;
  --success: #10b981;
  --warning: #f59e0b;

  /* Gradients */
  --gradient-primary: linear-gradient(135deg, #054ca3 0%, #1a6dd4 100%);
  --gradient-secondary: linear-gradient(135deg, #ff6b35 0%, #ff8c61 100%);
  --gradient-accent: linear-gradient(135deg, #4ecdc4 0%, #44a3a3 100%);
  --gradient-dark: linear-gradient(135deg, #0a1628 0%, #1e3a5f 100%);
  --gradient-overlay: linear-gradient(
    135deg,
    rgba(5, 76, 163, 0.9) 0%,
    rgba(26, 109, 212, 0.9) 100%
  );

  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md:
    0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg:
    0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --shadow-xl:
    0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
  --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
  --shadow-glow: 0 0 30px rgba(5, 76, 163, 0.3);

  /* Typography */
  --font-primary: "Inter", sans-serif;
  --font-display: "Outfit", sans-serif;

  /* Spacing */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2rem;
  --spacing-xl: 3rem;
  --spacing-2xl: 4rem;

  /* Transitions */
  --transition-fast: 0.2s ease;
  --transition-base: 0.3s ease;
  --transition-slow: 0.5s ease;
}

body {
  font-family: var(--font-primary);
  color: var(--text-primary);
  background-color: var(--light-bg);
  line-height: 1.6;
  overflow-x: hidden;
}

.container {
  max-width: 1320px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

/* ========================================
   HEADER
   ======================================== */
.main-header {
  background: var(--white);
  box-shadow: var(--shadow-sm);
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(10px);
  background: rgba(255, 255, 255, 0.95);
}

.header-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--spacing-md) 0;
}

.logo h1 {
  font-family: var(--font-display);
  font-size: 1.75rem;
  font-weight: 800;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 0.25rem;
}

.logo .tagline {
  font-size: 0.75rem;
  color: var(--text-secondary);
  font-weight: 500;
}

.main-nav {
  display: flex;
  gap: var(--spacing-lg);
}

.nav-link {
  text-decoration: none;
  color: var(--text-primary);
  font-weight: 500;
  font-size: 0.95rem;
  position: relative;
  transition: var(--transition-base);
}

.nav-link::after {
  content: "";
  position: absolute;
  bottom: -0.5rem;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--gradient-primary);
  transition: var(--transition-base);
}

.nav-link:hover,
.nav-link.active {
  color: var(--primary-color);
}

.nav-link:hover::after,
.nav-link.active::after {
  width: 100%;
}

/* ========================================
   HERO SECTION
   ======================================== */
.hero-section {
  position: relative;
  min-height: 400px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--gradient-primary);
  overflow: hidden;
}

.hero-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1200 600"><defs><pattern id="grid" width="40" height="40" patternUnits="userSpaceOnUse"><path d="M 40 0 L 0 0 0 40" fill="none" stroke="rgba(255,255,255,0.05)" stroke-width="1"/></pattern></defs><rect width="1200" height="600" fill="url(%23grid)"/></svg>');
  opacity: 0.3;
}

.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  color: var(--white);
  padding: var(--spacing-2xl) var(--spacing-md);
}

.hero-title {
  font-family: var(--font-display);
  font-size: 4rem;
  font-weight: 800;
  margin-bottom: var(--spacing-md);
  animation: fadeInUp 0.8s ease;
}

.hero-subtitle {
  color: #fff;
  font-size: 1.25rem;
  font-weight: 300;
  margin-bottom: var(--spacing-lg);
  opacity: 0.95;
  animation: fadeInUp 0.8s ease 0.2s both;
}

.hero-breadcrumb {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  font-size: 0.95rem;
  animation: fadeInUp 0.8s ease 0.4s both;
}

.hero-breadcrumb a {
  color: var(--white);
  text-decoration: none;
  opacity: 0.8;
  transition: var(--transition-fast);
}

.hero-breadcrumb a:hover {
  opacity: 1;
}

.hero-breadcrumb .separator {
  opacity: 0.6;
}

.hero-shapes {
  position: absolute;
  width: 100%;
  height: 100%;
  top: 0;
  left: 0;
  overflow: hidden;
  z-index: 1;
}

.shape {
  position: absolute;
  border-radius: 50%;
  filter: blur(60px);
  opacity: 0.3;
  animation: float 20s infinite ease-in-out;
}

.shape-1 {
  width: 300px;
  height: 300px;
  background: rgba(255, 255, 255, 0.2);
  top: -100px;
  left: -100px;
  animation-delay: 0s;
}

.shape-2 {
  width: 400px;
  height: 400px;
  background: rgba(78, 205, 196, 0.2);
  top: 50%;
  right: -150px;
  animation-delay: 5s;
}

.shape-3 {
  width: 250px;
  height: 250px;
  background: rgba(255, 107, 53, 0.2);
  bottom: -80px;
  left: 50%;
  animation-delay: 10s;
}

/* ========================================
   FILTER SECTION
   ======================================== */
.filter-section {
  padding: var(--spacing-2xl) 0 var(--spacing-lg);
  background: var(--white);
}

.filter-wrapper {
  background: var(--white);
  border-radius: 24px !important;
  padding: var(--spacing-xl);
  box-shadow: var(--shadow-lg);
}

.filter-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--spacing-lg);
}

.filter-title {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 700;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.filter-controls {
  display: flex;
  align-items: center;
  gap: var(--spacing-lg);
  flex-wrap: wrap;
}

.filter-buttons {
  display: flex;
  gap: var(--spacing-sm);
  flex-wrap: wrap;
}

.filter-btn {
  background: var(--light-bg);
  border: 2px solid transparent;
  padding: 0.5rem 1.5rem;
  border-radius: 9999px !important;
  font-weight: 500;
  font-size: 0.95rem;
  cursor: pointer;
  transition: var(--transition-base);
  color: var(--text-primary);
}

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

.filter-btn.active {
  background: var(--gradient-primary);
  color: var(--white);
  box-shadow: var(--shadow-glow);
}

/* ========================================
   GALLERY GRID
   ======================================== */
.gallery-section {
  padding: var(--spacing-2xl) 0;
}

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: var(--spacing-lg);
  animation: fadeIn 0.8s ease;
}

.gallery-grid.masonry-view {
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  grid-auto-rows: 10px;
}

.gallery-item {
  position: relative;
  border-radius: 24px !important;
  overflow: hidden;
  cursor: pointer;
  background: var(--white);
  box-shadow: var(--shadow-md);
  transition: var(--transition-base);
  animation: fadeInUp 0.6s ease both;
}

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

.gallery-item:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-2xl);
}

.gallery-item-image {
  width: 100%;
  height: 280px;
  object-fit: cover;
  transition: var(--transition-slow);
}

.gallery-grid.masonry-view .gallery-item-image {
  height: auto;
}

.gallery-item:hover .gallery-item-image {
  transform: scale(1.1);
}

.gallery-item-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--gradient-overlay);
  opacity: 0;
  transition: var(--transition-base);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: var(--spacing-lg);
}

.gallery-item:hover .gallery-item-overlay {
  opacity: 1;
}

.gallery-item-category {
  display: inline-block;
  background: rgba(255, 255, 255, 0.2);
  backdrop-filter: blur(10px);
  padding: 0.25rem 0.75rem;
  border-radius: 20px;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--white);
  margin-bottom: var(--spacing-sm);
  width: fit-content;
}

.gallery-item-title {
  color: var(--white);
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  font-family: var(--font-display);
}

.gallery-item-meta {
  display: flex;
  gap: var(--spacing-md);
  color: var(--white);
  font-size: 0.85rem;
  opacity: 0.9;
}

.gallery-item-meta svg {
  width: 16px;
  height: 16px;
  margin-right: 0.25rem;
  vertical-align: middle;
}

/* ========================================
   LIGHTBOX
   ======================================== */
.lightbox {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 1000;
  display: none;
  align-items: center;
  justify-content: center;
}

.lightbox.active {
  display: flex;
  animation: fadeIn 0.3s ease;
}

.lightbox-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(10, 22, 40, 0.95);
  backdrop-filter: blur(20px);
}

.lightbox-container {
  position: relative;
  z-index: 2;
  max-width: 1200px;
  width: 90%;
  max-height: 90vh;
  background: var(--white);
  border-radius: 24px;
  overflow: hidden;
  animation: scaleIn 0.4s ease;
}

.lightbox-close {
  position: absolute;
  top: var(--spacing-md);
  right: var(--spacing-md);
  background: rgba(255, 255, 255, 0.9);
  border: none;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 3;
  transition: var(--transition-base);
  box-shadow: var(--shadow-lg);
}

.lightbox-close:hover {
  background: var(--white);
  transform: rotate(90deg);
}

.lightbox-nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background: rgba(255, 255, 255, 0.9);
  border: none;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 3;
  transition: var(--transition-base);
  box-shadow: var(--shadow-lg);
}

.lightbox-nav:hover {
  background: var(--white);
  transform: translateY(-50%) scale(1.1);
}

.lightbox-prev {
  left: var(--spacing-md);
}

.lightbox-next {
  right: var(--spacing-md);
}

.lightbox-content {
  display: flex;
  flex-direction: column;
}

#lightboxImage {
  width: 100%;
  max-height: 60vh;
  object-fit: contain;
  background: var(--darker-bg);
}

.lightbox-details {
  padding: var(--spacing-xl);
}

#lightboxTitle {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: var(--spacing-sm);
  color: var(--text-primary);
}

#lightboxCategory {
  display: inline-block;
  background: var(--gradient-primary);
  color: var(--white);
  padding: 0.25rem 0.75rem;
  border-radius: 20px;
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: var(--spacing-md);
}

#lightboxDescription {
  color: var(--text-secondary);
  font-size: 1rem;
  line-height: 1.8;
  margin-bottom: var(--spacing-md);
}

.lightbox-meta {
  display: flex;
  gap: var(--spacing-lg);
  color: var(--text-secondary);
  font-size: 0.9rem;
}

.lightbox-meta span {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.lightbox-counter {
  position: absolute;
  bottom: var(--spacing-md);
  left: 50%;
  transform: translateX(-50%);
  background: rgba(255, 255, 255, 0.9);
  padding: var(--spacing-xs) var(--spacing-md);
  border-radius: 50px;
  font-weight: 600;
  font-size: 0.9rem;
  backdrop-filter: blur(10px);
  box-shadow: var(--shadow-md);
}

/* ========================================
   FOOTER
   ======================================== */
.main-footer {
  background: var(--dark-bg);
  color: var(--text-light);
  padding: var(--spacing-2xl) 0 var(--spacing-md);
  margin-top: var(--spacing-2xl);
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-xl);
  margin-bottom: var(--spacing-xl);
}

.footer-col h3 {
  font-family: var(--font-display);
  font-size: 1.5rem;
  margin-bottom: var(--spacing-md);
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.footer-col h4 {
  font-size: 1.1rem;
  margin-bottom: var(--spacing-md);
  color: var(--white);
}

.footer-col p {
  opacity: 0.8;
  line-height: 1.8;
}

.footer-col a {
  display: block;
  color: var(--text-light);
  text-decoration: none;
  margin-bottom: var(--spacing-xs);
  opacity: 0.8;
  transition: var(--transition-fast);
}

.footer-col a:hover {
  opacity: 1;
  color: var(--accent-color);
  transform: translateX(5px);
}

.footer-bottom {
  text-align: center;
  padding-top: var(--spacing-md);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  opacity: 0.7;
}

/* ========================================
   ANIMATIONS
   ======================================== */
@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes scaleIn {
  from {
    opacity: 0;
    transform: scale(0.9);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

@keyframes float {
  0%,
  100% {
    transform: translateY(0) translateX(0);
  }
  25% {
    transform: translateY(-30px) translateX(20px);
  }
  50% {
    transform: translateY(-15px) translateX(-20px);
  }
  75% {
    transform: translateY(-40px) translateX(10px);
  }
}

/* ========================================
   RESPONSIVE DESIGN
   ======================================== */
@media (max-width: 768px) {
  .hero-title {
    font-size: 2.5rem;
  }

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

  .main-nav {
    gap: var(--spacing-md);
  }

  .filter-controls {
    flex-direction: column;
    align-items: stretch;
  }

  .search-box {
    width: 100%;
  }

  .gallery-grid {
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: var(--spacing-md);
  }

  .lightbox-container {
    width: 95%;
  }

  .lightbox-details {
    padding: var(--spacing-md);
  }

  #lightboxTitle {
    font-size: 1.5rem;
  }

  .lightbox-nav {
    width: 40px;
    height: 40px;
  }
}

@media (max-width: 480px) {
  .header-content {
    flex-direction: column;
    gap: var(--spacing-md);
  }

  .main-nav {
    width: 100%;
    justify-content: center;
    gap: var(--spacing-sm);
    font-size: 0.85rem;
  }

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

  .filter-wrapper {
    padding: var(--spacing-md);
  }

  .filter-title {
    font-size: 1.5rem;
  }

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