/* ==========================================================================
   CSS Custom Properties (CSS Variables)
   ========================================================================== */
:root {
  /* Colors */
  --color-text-primary: #000000;
  --color-text-secondary: #333333;
  --color-text-muted: #666666;
  --color-text-light: #c0c0c0;
  --color-background: #ffffff;
  --color-border: #c0c0c0;
  --color-border-light: #e0e0e0;
  --color-accent: #000000;
  --color-accent-hover: #333333;
  
  /* Typography */
  --font-family-primary: 'Arial', sans-serif;
  --font-size-hero: clamp(2.5rem, 5vw, 4rem);
  --font-size-title: clamp(2rem, 4vw, 3rem);
  --font-size-subtitle: 1.2rem;
  --font-size-body: 1.1rem;
  --font-size-small: 0.9rem;
  --font-size-xs: 0.8rem;
  
  /* Spacing */
  --spacing-xs: 8px;
  --spacing-sm: 15px;
  --spacing-md: 20px;
  --spacing-lg: 30px;
  --spacing-xl: 40px;
  --spacing-2xl: 60px;
  
  /* Layout */
  --container-max-width: 1200px;
  --sidebar-width: 250px;
  --sidebar-width-mobile: 200px;
  --menu-toggle-size: 44px;
  
  /* Transitions */
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s ease;
  --transition-slow: 0.5s ease;
  
  /* Z-index */
  --z-index-menu: 1001;
  --z-index-sidebar: 1000;
  
  /* Mobile specific */
  --works-height-mobile: 70lvh;
}

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

body {
  font-family: var(--font-family-primary);
  background-color: var(--color-background);
  color: var(--color-text-primary);
  overflow-x: hidden;
  height: 100vh;
  touch-action: pan-y;
}

section {
  max-width: 100vw;
  overflow-x: hidden;
}

/* ==========================================================================
   Layout Components
   ========================================================================== */
.main-container {
  height: 100vh;
  width: 700vw;
  display: flex;
}

.section {
  width: 100vw;
  height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-xl);
}

.section-content {
  max-width: var(--container-max-width);
  width: 100%;
  opacity: 0;
}

/* ==========================================================================
   Navigation Components
   ========================================================================== */
.menu-toggle {
  position: fixed;
  top: var(--spacing-md);
  left: var(--spacing-md);
  font-size: 24px;
  cursor: pointer;
  z-index: var(--z-index-menu);
  color: var(--color-text-primary);
  padding: 10px;
  width: var(--menu-toggle-size);
  height: var(--menu-toggle-size);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform var(--transition-normal);

  i {
    transition: opacity var(--transition-fast);
  }

  .fa-times {
    opacity: 0;
    position: absolute;
  }
}

.menu-toggle.open {
  transform: rotate(90deg);

  .fa-bars {
    opacity: 0;
  }

  .fa-times {
    opacity: 1;
  }
}

.sidebar {
  position: fixed;
  left: calc(-1 * var(--sidebar-width));
  top: 0;
  height: 100vh;
  width: var(--sidebar-width);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 80px 0 var(--spacing-md);
  z-index: var(--z-index-sidebar);
  background-color: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  transition: left var(--transition-normal);
}

.sidebar.open {
  left: 0;
}

.nav-item {
  display: flex;
  align-items: center;
  cursor: pointer;
  padding: var(--spacing-sm) 25px;
  color: var(--color-text-light);
  transition: color var(--transition-normal);

  i {
    font-size: 20px;
    margin-right: var(--spacing-sm);
    width: 20px;
    text-align: center;
  }

  span {
    font-size: 14px;
    text-transform: uppercase;
    letter-spacing: 1px;
  }
}

.nav-item:hover,
.nav-item.active {
  color: var(--color-text-secondary);
}

.social-icon {
  padding: var(--spacing-sm) 25px;

  a {
    color: var(--color-text-light);
    font-size: 16px;
    transition: color var(--transition-normal);
    display: flex;
    align-items: center;
    text-decoration: none;
  }

  a:hover {
    color: var(--color-text-secondary);
  }

  i {
    margin-right: var(--spacing-sm);
    width: 20px;
    text-align: center;
  }
}

/* ==========================================================================
   Section Components
   ========================================================================== */
.section-title {
  font-size: var(--font-size-title);
  font-weight: 300;
  letter-spacing: 4px;
  margin-bottom: var(--spacing-xl);
  color: var(--color-text-primary);
  border-bottom: 2px solid var(--color-border);
  padding-bottom: var(--spacing-md);
  transform: translateY(50px);
  opacity: 0;
}

/* Hero Section */
.hero-content {
  text-align: center;
}

.artist-name {
  font-size: var(--font-size-hero);
  font-weight: 300;
  letter-spacing: 8px;
  margin-bottom: 10px;
  color: var(--color-text-primary);
  transform: translateY(50px);
  opacity: 0;
}

.artist-subtitle {
  font-size: var(--font-size-subtitle);
  color: var(--color-text-muted);
  margin-bottom: var(--spacing-xl);
  letter-spacing: 2px;
  transform: translateY(30px);
  opacity: 0;
}

.hero-image {
  transform: translateY(30px);
  opacity: 0;

  img {
    max-width: 100%;
    height: auto;
    border: 2px solid var(--color-border);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
  }
}

/* About Section */
.about-content {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: var(--spacing-2xl);
  align-items: start;
}

.about-text {
  transform: translateX(-50px);
  opacity: 0;

  p {
    font-size: var(--font-size-body);
    line-height: 1.8;
    margin-bottom: var(--spacing-md);
    color: var(--color-text-secondary);
  }
}

.skills {
  margin-top: var(--spacing-xl);

  h3 {
    font-size: var(--font-size-subtitle);
    margin-bottom: var(--spacing-sm);
    color: var(--color-text-primary);
    letter-spacing: 2px;
  }

  ul {
    list-style: none;
  }

  li {
    padding: var(--spacing-xs) 0;
    border-bottom: 1px solid var(--color-border-light);
    color: var(--color-text-muted);
    transform: translateX(-20px);
    opacity: 0;
  }
}

.about-image {
  transform: translateX(50px);
  opacity: 0;

  img {
    width: 100%;
    height: auto;
    border: 2px solid var(--color-border);
  }
}

/* Gallery Section */
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-lg);
}

.gallery-item {
  position: relative;
  overflow: hidden;
  border: 2px solid var(--color-border);
  transform: translateY(50px);
  opacity: 0;
  display: flex;
  justify-content: center;
  align-items: center;
  transition: transform var(--transition-normal);

  img {
    width: 90%;
    height: 200px;
    object-fit: cover;
    transition: opacity var(--transition-normal);
  }
}

.gallery-item:hover {
  transform: scale(1.05) translateY(0);
}

.gallery-item:hover .gallery-overlay {
  transform: translateY(0);
}

.gallery-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  background: linear-gradient(transparent, rgba(0, 0, 0, 0.8));
  color: white;
  padding: var(--spacing-md);
  transform: translateY(100%);
  transition: transform var(--transition-normal);

  h4 {
    font-size: var(--font-size-body);
    margin-bottom: 5px;
  }

  p {
    font-size: var(--font-size-small);
    color: var(--color-text-light);
  }
}

/* Exhibitions Section */
.exhibitions-list {
  max-width: 800px;
}

.exhibition-item {
  display: grid;
  grid-template-columns: 100px 1fr;
  gap: var(--spacing-lg);
  padding: var(--spacing-lg) 0;
  border-bottom: 1px solid var(--color-border-light);
  transform: translateX(-50px);
  opacity: 0;
}

.exhibition-year {
  font-size: 2rem;
  font-weight: 300;
  color: var(--color-text-light);
}

.exhibition-details {
  h3 {
    font-size: 1.3rem;
    margin-bottom: 5px;
    color: var(--color-text-primary);
  }

  p {
    color: var(--color-text-muted);
    margin-bottom: 10px;
  }
}

.exhibition-type {
  background-color: var(--color-accent);
  color: white;
  padding: 4px 12px;
  font-size: var(--font-size-xs);
  text-transform: uppercase;
  letter-spacing: 1px;
}

/* Contact Section */
.contact-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-2xl);
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg);
  transform: translateX(-50px);
  opacity: 0;
}

.contact-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  font-size: var(--font-size-body);

  i {
    font-size: 1.2rem;
    color: var(--color-text-light);
    width: 20px;
  }
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
  transform: translateX(50px);
  opacity: 0;

  input,
  textarea {
    padding: var(--spacing-sm);
    border: 2px solid var(--color-border);
    background-color: var(--color-background);
    font-size: 1rem;
    transition: border-color var(--transition-normal);
  }

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

  button {
    padding: var(--spacing-sm) var(--spacing-lg);
    background-color: var(--color-accent);
    color: white;
    border: none;
    font-size: 1rem;
    letter-spacing: 2px;
    cursor: pointer;
    transition: background-color var(--transition-normal);
  }

  button:hover {
    background-color: var(--color-accent-hover);
  }
}

/* ==========================================================================
   Media Queries
   ========================================================================== */

/* Desktop specific styles */
@media (min-width: 769px) {
  html {
    max-height: 100vh;
    overflow-y: hidden;
  }
}

/* Tablet styles */
@media (max-width: 768px) {
  .main-container {
    width: 100vw;
    flex-direction: column;
    overflow-y: auto;
    height: auto;
    min-height: 100vh;
  }

  .sidebar {
    width: var(--sidebar-width-mobile);
    left: calc(-1 * var(--sidebar-width-mobile));
  }

  .artist-name {
    letter-spacing: 4px;
  }

  .section-title {
    letter-spacing: 2px;
  }

  .about-content,
  .contact-content {
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
  }

  .gallery-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
  }

  .exhibition-item {
    grid-template-columns: 80px 1fr;
    gap: var(--spacing-md);
  }
}

/* Mobile styles */
@media (max-width: 480px) {
  .sidebar {
    width: 100%;
    left: -100%;
  }

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

  .section {
    padding: var(--spacing-md);
    height: fit-content;
    overflow: hidden;

    * {
      opacity: 1;
    }
  }

  .section-title {
    transform: none;
  }

  .section-content {
    height: fit-content;
  }

  .gallery-item {
    transform: none;
  }

  /* Specific section overrides */
  #home {
    height: 100lvh;
  }

  #about {
    .about-text {
      transform: none;
    }

    .skills * {
      opacity: 1;
      transform: none;
    }
  }

  #works {
    padding: 0 !important;

    .section-content {
      height: var(--works-height-mobile) !important;
      width: 100vw !important;
      padding: 0 !important;
      max-width: none !important;
    }

    .works-iframe-container {
      height: var(--works-height-mobile) !important;
      width: 100vw !important;
    }

    iframe {
      height: var(--works-height-mobile) !important;
      width: 100vw !important;
    }
  }

  #exhibitions {
    .exhibition-item {
      transform: none;
    }
  }

  #contact {
    .contact-info,
    .contact-form {
      transform: none;
    }
  }
}