/* =============================================================================
   CSS Custom Properties (Variables)
   ============================================================================= */
:root {
  /* Colors */
  --color-background: #ffffff;
  --color-text: #2b2118;
  --color-primary: #2b2118;
  
  /* Spacing */
  --space-extra-small: 0.5rem;
  --space-small: 1rem;
  --space-medium: 2rem;
  --space-large: 3rem;

  --icon-size: 1.5rem;
  
  /* Typography */
  --font-size-small: 0.75rem;
  --font-size-medium: 1.0rem;
  --font-size-large: 1.5rem;
  --font-size-extra-large: 2.5rem;
  --font-weight-normal: 400;
  --font-weight-medium: 500;
  --font-weight-bold: 600;
  
  /* Layout */
  --radius: 27px;
  --transition: 1.2s ease;
  --shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
  --shadow-hover: 0 5px 15px var(--color-text);
  
  /* Filters */
  --filter-grayscale: grayscale(0.9);
  
  /* Fog */
  --blur-height: 80px;
}

/* =============================================================================
   Reset & Base Styles
   ============================================================================= */
*, *::before, *::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background-color: var(--color-background);
  color: var(--color-text);
  font-family: 'Spectral', serif;
}

/* =============================================================================
   Atmospheric Effects
   ============================================================================= */
body::before, body::after {
  content: '';
  position: fixed;
  left: 0;
  right: 0;
  height: var(--blur-height);
  backdrop-filter: blur(var(--space-extra-small));
  mask-image: linear-gradient(to bottom, black 0%, transparent 100%);
  -webkit-mask-image: linear-gradient(to bottom, black 0%, transparent 100%);
  pointer-events: none;
  z-index: 1000;
}

body::before {
  top: 0;
}

body::after {
  bottom: 0;
  transform: rotate(180deg);
}

/* =============================================================================
   Layout Components
   ============================================================================= */
.container-list {
  padding: var(--space-large) var(--space-small);
  position: relative;
}

.model-container {
  width: 16rem;
  height: 16rem;
  position: relative;
  filter: saturate(1.0);
}


/* =============================================================================
   Enhanced Page Header with Separate Panels
   ============================================================================= */
.page-header {
  margin: var(--space-small);
  animation: gentleRise 2.2s cubic-bezier(0.16, 1, 0.3, 1) both;
  display: flex;
  flex-direction: row;
  align-items: center;
  justify-content: center;
  gap: var(--space-medium);
}

.header-plane {
  background-color: var(--color-background);
  border: 1px solid var(--color-background);
  border-radius: var(--radius);
  transition: box-shadow var(--transition);
}

.header-plane:hover {
  box-shadow: var(--shadow-hover);
}

/* Main Header Panel (Logo + Buttons) */
.header-main {
  display: flex;
  align-items: center;
  flex-direction: column;
  flex-shrink: 0;
}

/* Tags Header Panel */
.header-tags {
  display: flex;
  flex-direction: row;
  background-color: var(--color-background);
  border: 1px solid var(--color-background); 
}

/* =============================================================================
   Logo Box (Simple Info-box Style)
   ============================================================================= */
.logo-box {
  align-self: stretch;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--color-background);
  border-radius: var(--radius);
  overflow: hidden;
}

.logo-image {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

/* =============================================================================
   Header Buttons (Info-box Style)
   ============================================================================= */
.header-buttons {
  display: flex;
  flex-wrap: wrap;
  flex: 1;
  justify-content: center;
}

.header-btn {
  padding: var(--space-extra-small) var(--space-small);
  background-color: var(--color-background);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  color: var(--color-text);
  font-size: var(--font-size-small);
  font-weight: var(--font-weight-normal);
  text-decoration: none;
  transition: all var(--transition);
  white-space: nowrap;
  cursor: pointer;
  width: fit-content;
  height: fit-content;
  z-index: 10;
  display: inline-block;
  text-align: center;
}

.header-btn:hover {
  background-color: var(--color-primary);
  border-color: var(--color-primary);
  color: var(--color-background);
}

.header-btn-primary {
  background-color: var(--color-background);
  border-color: var(--color-text);
  color: var(--color-text);
}

.header-btn-primary:hover {
  background-color: var(--color-primary);
  border-color: var(--color-primary);
  color: var(--color-background);
}

.icon {
  width: var(--icon-size);
  height: var(--icon-size);
  filter: brightness(0);
  transition: filter var(--transition);
}

.header-btn:hover .icon {
  filter: brightness(0) invert(1);
}

/* =============================================================================
   Tags Section
   ============================================================================= */
.tags-section {
  display: flex;
  flex-direction: row;
  flex-wrap: wrap;
  gap: var(--space-extra-small);
  align-items: center;
  justify-content: center;

  -webkit-scrollbar: none; /* Webkit browsers */
  scrollbar-width: none; /* Firefox */
  -ms-overflow-style: none; /* Internet Explorer and Edge */
}


.header-top {
  min-width: 0;
  display: flex;
  flex-direction: row;
  justify-content: space-between;
  padding: var(--space-small);
  align-items: center;
}

/* Legacy tags class for backward compatibility */
.page-header .tags {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-extra-small);
  margin-top: var(--space-small);
  padding: 0 var(--space-small);
}

.page-header h1 {
  margin-bottom: var(--space-small);
  font-size: var(--font-size-extra-large);
  font-weight: var(--font-weight-bold);
  color: var(--color-text);
  transition: color var(--transition);
}

.page-header h1:hover {
  color: var(--color-primary);
}

.page-header .btn {
  padding: var(--space-extra-small) var(--space-small);
  font-size: var(--font-size-medium);
  background-color: var(--color-background);
  border: 1px solid var(--color-background);
  border-radius: var(--radius);
  color: var(--color-text);
  text-decoration: none;
  transition: all var(--transition);
}

.page-header .btn:hover {
  background-color: var(--color-primary);
  border-color: var(--color-primary);
  color: var(--color-background);
  box-shadow: var(--shadow);
}

/* =============================================================================
   Pinterest Masonry Grid
   ============================================================================= */
.event-grid {
  columns: 3 270px;
  column-gap: var(--space-small);
  padding: var(--space-small);
}

.event-grid .col {
  break-inside: avoid;
  margin-bottom: var(--space-small);
}

.event-grid .col.animate {
  animation: gentleRise 2.2s cubic-bezier(0.16, 1, 0.3, 1) both;
}

/* =============================================================================
   Event Cards
   ============================================================================= */
.event-card {
  position: relative;
  background-color: var(--color-background);
  border: 1px solid var(--color-background);
  border-radius: var(--radius);
  overflow: hidden;
  transition: box-shadow var(--transition), border-color var(--transition);
}

.event-card:hover,
.event-card.active {
  box-shadow: var(--shadow-hover);
}

.event-card.now {
  animation: pulse 2s ease-in-out infinite;
}

.event-card.expired {
  filter: var(--filter-grayscale);
}

@keyframes pulse {
  0%, 100% { 
    box-shadow: var(--shadow); 
  }
  50% { 
    box-shadow: 0 0 15px rgba(161, 130, 118, 0.4), var(--shadow);
  }
}

/* =============================================================================
   Card Components
   ============================================================================= */
.card-img-wrapper {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius);
  margin-top: -1px;
}

.card-img-wrapper a {
  display: block;
  text-decoration: none;
}

.card-img-hover {
  width: 100%;
  height: auto;
  display: block;
  transition: transform var(--transition);
}

.event-card:hover .card-img-hover,
.event-card.active .card-img-hover {
  transform: scale(1.125);
}

.image-overlay {
  position: absolute;
  inset: 0;
  background-color: rgba(0, 0, 0, 0.2);
  transition: opacity var(--transition);
  pointer-events: none;
  z-index: 2;
}

.event-card:hover .image-overlay,
.event-card.active .image-overlay {
  opacity: 0;
}

/* Status Badges */
.badge-status {
  position: absolute;
  top: var(--space-small);
  right: var(--space-small);
  padding: var(--space-extra-small) var(--space-small);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  font-size: var(--font-size-small);
  font-weight: var(--font-weight-normal);
  font-family: inherit;
  white-space: nowrap;
  z-index: 10;
  width: fit-content;
}

.badge-now {
  background-color: var(--color-background);
  color: var(--color-text);
}

.badge-upcoming {
  background-color: var(--color-text);
  color: var(--color-background);
}

.badge-upcoming .icon {
  filter: brightness(0) invert(1);
}

.badge-expired {
  background-color: var(--color-background);
  color: var(--color-text);
}

/* Card Content */
.card-body {
  padding: var(--space-small);
}

.card-body a {
  display: block;
  text-decoration: none;
  color: inherit;
}

.card-text {
  padding: var(--space-extra-small) 0;
}

.card-text h2 {
  margin: 0 0 var(--space-extra-small) 0;
  font-size: var(--font-size-large);
  font-weight: var(--font-weight-medium);
  color: var(--color-text);
  transition: color var(--transition);
}

.event-card:hover .card-text h2,
.event-card.active .card-text h2 {
  color: var(--color-primary);
}

.card-text div {
  margin-bottom: var(--space-small);
  color: var(--color-text);
}

/* =============================================================================
   Info Boxes and Tags
   ============================================================================= */

/* Card info boxes container */
.card-info-boxes {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-extra-small);
}

/* Base info-box styles */
.info-box {
  padding: var(--space-extra-small) var(--space-small);
  background-color: var(--color-background);
  border-radius: var(--radius);
  color: var(--color-text);
  font-size: var(--font-size-small);
  font-weight: var(--font-weight-normal);
  width: fit-content;
  height: fit-content;
  z-index: 10;
  display: inline-block;
  min-width: 60px;
  text-align: center;
}

/* Clickable info-box styles (tags) */
.info-box-clickable {
  cursor: pointer;
  text-decoration: none;
  background-color: var(--color-background);
  box-shadow: var(--shadow);
  color: var(--color-text);
  transition: all var(--transition);
}

.info-box-clickable:hover {
  background-color: var(--color-primary);
  border-color: var(--color-primary);
  color: var(--color-background);
}

.info-box-clickable.active {
  background-color: var(--color-primary);
  border-color: var(--color-primary);
  color: var(--color-background);
}

/* Hide filtered cards */
.col.hidden {
  display: none;
}

/* Grid helpers */
.row > .col {
  padding: var(--space-small);
}

/* =============================================================================
   Animations
   ============================================================================= */
@keyframes gentleRise {
  from {
    opacity: 0;
    transform: translateY(20px) scale(0.95);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

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

/* Fade-out class for smooth clearing */
.fade-out {
  animation: fadeOut 0.6s ease-out both;
}

/* =============================================================================
   Responsive Design for Separate Panels
   ============================================================================= */
@media (max-width: 1200px) {
  .event-grid {
    columns: 2 270px;
  }
}

@media (max-width: 768px) {
  .event-grid {
    columns: 1;
  }
  
  .tags-section {
    flex-direction: row;
    flex-wrap: wrap;
  }
  
  .card-info-boxes {
    justify-content: flex-start;
  }

  .page-header {
    flex-direction: column;
  }

  .header-main {
    align-self: stretch;
  }
  
  .header-top {
    flex-direction: column;
    align-items: center;
    text-align: center;
    width: 100%;
  }
}