/* ==========================================
   PAMETNE TABLE - DESIGN SYSTEM
   Dark Mode | Glassmorphism | High-Tech
   ========================================== */

/* === CSS CUSTOM PROPERTIES === */
:root {
  /* Primary Colors - Neon Accents */
  --color-primary: #00d4ff;
  /* Electric Blue */
  --color-secondary: #a855f7;
  /* Vibrant Purple */
  --color-accent: #34d399;
  /* Mint Green */

  /* Dark Theme Base */
  --color-bg-dark: #0a0e1a;
  /* Deep Dark Blue */
  --color-bg-darker: #050810;
  /* Darker Background */
  --color-bg-surface: #1a1f35;
  /* Surface Level */

  /* Glass Effect */
  --glass-bg: rgba(26, 31, 53, 0.6);
  --glass-border: rgba(255, 255, 255, 0.1);
  --glass-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.37);

  /* Text Colors */
  --color-text-primary: #ffffff;
  --color-text-secondary: #cbd5e1;
  --color-text-muted: #94a3b8;

  /* Glow Effects */
  --glow-blue: 0 0 20px rgba(0, 212, 255, 0.5);
  --glow-purple: 0 0 20px rgba(168, 85, 247, 0.5);
  --glow-green: 0 0 20px rgba(52, 211, 153, 0.5);

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

  /* Border Radius */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;

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

  /* Typography */
  --font-headings: 'Inter', system-ui, sans-serif;
  --font-body: 'Inter', system-ui, sans-serif;

  /* Z-index layers */
  --z-modal: 1000;
  --z-overlay: 999;
  --z-nav: 100;
  --z-dropdown: 50;
}

/* === GLOBAL RESET === */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  overflow-x: hidden;
}

body {
  font-family: var(--font-body);
  background: var(--color-bg-dark);
  color: var(--color-text-primary);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* === TYPOGRAPHY === */
h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--font-headings);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: var(--spacing-md);
}

h1 {
  font-size: clamp(2.5rem, 5vw, 4rem);
  background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

h2 {
  font-size: clamp(2rem, 4vw, 3rem);
  color: var(--color-text-primary);
}

h3 {
  font-size: clamp(1.5rem, 3vw, 2rem);
  color: var(--color-text-primary);
}

p {
  font-size: 1.125rem;
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-sm);
}

/* === CUSTOM CURSOR === */
body {
  cursor: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24"><circle cx="12" cy="12" r="8" fill="rgba(0,212,255,0.3)" stroke="rgb(0,212,255)" stroke-width="2"/></svg>') 12 12, auto;
}

a,
button {
  cursor: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24"><circle cx="12" cy="12" r="10" fill="rgba(168,85,247,0.5)" stroke="rgb(168,85,247)" stroke-width="2"/></svg>') 12 12, pointer;
}

/* === GLASSMORPHISM CARD === */
.glass-card {
  background: var(--glass-bg);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--glass-shadow);
  padding: var(--spacing-lg);
  transition: all var(--transition-base);
}

.glass-card:hover {
  transform: translateY(-8px) scale(1.02);
  box-shadow: var(--glow-blue), var(--glass-shadow);
  border-color: var(--color-primary);
}

/* === BUTTONS === */
.btn {
  display: inline-block;
  padding: var(--spacing-sm) var(--spacing-lg);
  font-size: 1rem;
  font-weight: 600;
  text-decoration: none;
  border-radius: var(--radius-md);
  transition: all var(--transition-base);
  border: none;
  cursor: pointer;
  position: relative;
  overflow: hidden;
}

.btn-primary {
  background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
  color: white;
  box-shadow: var(--glow-blue);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 30px rgba(0, 212, 255, 0.8);
}

.btn-primary::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
  transition: left 0.5s;
}

.btn-primary:hover::before {
  left: 100%;
}

.btn-secondary {
  background: transparent;
  color: var(--color-primary);
  border: 2px solid var(--color-primary);
}

.btn-secondary:hover {
  background: var(--color-primary);
  color: var(--color-bg-dark);
  box-shadow: var(--glow-blue);
}

/* === CONTAINER === */
.container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
}

.section {
  padding: var(--spacing-2xl) 0;
  position: relative;
}

/* === GRID SYSTEM === */
.grid {
  display: grid;
  gap: var(--spacing-lg);
}

.grid-2 {
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

.grid-3 {
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.grid-4 {
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

/* === NAVIGATION === */
.nav-sidebar {
  position: fixed;
  right: var(--spacing-md);
  top: 50%;
  transform: translateY(-50%);
  z-index: var(--z-nav);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.nav-item {
  width: 70px;
  height: 70px;
  background: var(--glass-bg);
  backdrop-filter: blur(10px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: flex-start;
  color: var(--color-primary);
  text-decoration: none;
  transition: all var(--transition-base);
  position: relative;
  overflow: visible;
  padding-left: 0;
}

.nav-item:hover {
  width: 220px;
  background: var(--color-bg-surface);
  box-shadow: var(--glow-blue);
  justify-content: flex-start;
}

.nav-item .icon {
  font-size: 2rem;
  min-width: 70px;
  width: 70px;
  height: 70px;
  text-align: center;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.nav-item .label {
  opacity: 0;
  white-space: nowrap;
  transition: opacity var(--transition-base);
  font-size: 0.9rem;
  font-weight: 500;
  margin-left: 0;
}

.nav-item:hover .label {
  opacity: 1;
}

/* === PRODUCT CARD === */
.product-card {
  position: relative;
  overflow: hidden;
}

.product-card img {
  width: 100%;
  height: 250px;
  object-fit: cover;
  border-radius: var(--radius-md);
  transition: transform var(--transition-slow);
}

.product-card:hover img {
  transform: scale(1.1);
}

.product-info {
  padding: var(--spacing-md);
}

.product-title {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--color-text-primary);
  margin-bottom: var(--spacing-xs);
}

.product-description {
  font-size: 0.95rem;
  color: var(--color-text-muted);
  margin-bottom: var(--spacing-sm);
}

.product-tag {
  display: inline-block;
  padding: 0.25rem 0.75rem;
  background: rgba(0, 212, 255, 0.1);
  border: 1px solid var(--color-primary);
  border-radius: 20px;
  font-size: 0.85rem;
  color: var(--color-primary);
  margin-right: 0.5rem;
  margin-bottom: 0.5rem;
}

.product-actions {
  display: flex;
  gap: 0.75rem;
  margin-top: 1rem;
}

.product-actions .btn {
  flex: 1;
  text-align: center;
  padding: 0.75rem 1rem;
}

/* === FILTERS === */
.filters {
  display: flex;
  gap: var(--spacing-md);
  flex-wrap: wrap;
  margin-bottom: var(--spacing-xl);
  padding: var(--spacing-lg);
  background: var(--glass-bg);
  backdrop-filter: blur(10px);
  border-radius: var(--radius-lg);
  border: 1px solid var(--glass-border);
}

/* === LANGUAGE SWITCHER === */
.language-switcher {
  position: fixed;
  top: 20px;
  left: 20px;
  z-index: 100;
  display: flex;
  gap: 0.5rem;
  background: var(--glass-bg);
  backdrop-filter: blur(10px);
  padding: 0.5rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--glass-border);
  box-shadow: var(--glass-shadow);
}

.lang-btn {
  padding: 0.5rem 0.75rem;
  background: transparent;
  border: 1px solid var(--glass-border);
  color: var(--color-text-secondary);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition-fast);
  font-weight: 600;
  font-size: 0.85rem;
  min-width: 40px;
}

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

.lang-btn.active {
  background: var(--color-primary);
  color: var(--color-bg-dark);
  border-color: var(--color-primary);
  box-shadow: var(--glow-blue);
}

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

.filter-group label {
  font-weight: 600;
  color: var(--color-text-secondary);
  margin-right: var(--spacing-xs);
}

.filter-btn {
  padding: 0.5rem 1rem;
  background: transparent;
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-sm);
  color: var(--color-text-secondary);
  font-size: 0.9rem;
  transition: all var(--transition-fast);
}

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

.filter-btn.active {
  background: var(--color-primary);
  color: var(--color-bg-dark);
  border-color: var(--color-primary);
  box-shadow: var(--glow-blue);
}

/* === MODAL === */
.modal {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.8);
  backdrop-filter: blur(5px);
  z-index: var(--z-modal);
  align-items: center;
  justify-content: center;
  padding: var(--spacing-lg);
}

.modal.active {
  display: flex;
}

.modal-content {
  background: var(--color-bg-surface);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  max-width: 900px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  padding: var(--spacing-xl);
  position: relative;
  box-shadow: 0 0 50px rgba(0, 212, 255, 0.3);
}

.modal-close {
  position: absolute;
  top: var(--spacing-md);
  right: var(--spacing-md);
  background: transparent;
  border: none;
  color: var(--color-text-primary);
  font-size: 2rem;
  cursor: pointer;
  transition: color var(--transition-fast);
}

.modal-close:hover {
  color: var(--color-primary);
}

/* === UTILITIES === */
.text-center {
  text-align: center;
}

.mb-sm {
  margin-bottom: var(--spacing-sm);
}

.mb-md {
  margin-bottom: var(--spacing-md);
}

.mb-lg {
  margin-bottom: var(--spacing-lg);
}

.mb-xl {
  margin-bottom: var(--spacing-xl);
}

.mt-sm {
  margin-top: var(--spacing-sm);
}

.mt-md {
  margin-top: var(--spacing-md);
}

.mt-lg {
  margin-top: var(--spacing-lg);
}

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

/* === RESPONSIVE === */
@media (max-width: 768px) {
  :root {
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
  }

  .nav-sidebar {
    flex-direction: row;
    right: auto;
    left: 50%;
    top: auto;
    bottom: var(--spacing-md);
    transform: translateX(-50%);
  }

  .filters {
    flex-direction: column;
  }

  h1 {
    font-size: 2rem;
  }

  .grid-2,
  .grid-3,
  .grid-4 {
    grid-template-columns: 1fr;
  }
}

/* === SCROLLBAR === */
::-webkit-scrollbar {
  width: 10px;
}

::-webkit-scrollbar-track {
  background: var(--color-bg-darker);
}

::-webkit-scrollbar-thumb {
  background: linear-gradient(180deg, var(--color-primary), var(--color-secondary));
  border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--color-primary);
}