/* ===================================
   ZAHUDBOU.CZ - Luxusní Design System
   =================================== */

/* Root proměnné pro světlý režim */
:root {
  /* Hlavní barvy */
  --primary: #b6e100;
  --primary-dark: #8fb300;
  --primary-light: #d4ff00;
  --primary-rgb: 182, 225, 0;
  
  /* Neutrální barvy */
  --gray-50: #fafafa;
  --gray-100: #f5f5f5;
  --gray-200: #e5e5e5;
  --gray-300: #d4d4d4;
  --gray-400: #a3a3a3;
  --gray-500: #737373;
  --gray-600: #525252;
  --gray-700: #404040;
  --gray-800: #262626;
  --gray-900: #171717;
  --gray-950: #0a0a0a;
  
  /* Pozadí */
  --bg-primary: #ffffff;
  --bg-secondary: #fafafa;
  --bg-tertiary: #f5f5f5;
  --bg-card: #ffffff;
  --bg-hover: #f9f9f9;
  
  /* Text */
  --text-primary: #171717;
  --text-secondary: #525252;
  --text-tertiary: #737373;
  --text-inverse: #ffffff;
  
  /* Borders */
  --border-color: #e5e5e5;
  --border-hover: #d4d4d4;
  
  /* 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-glow: 0 0 20px rgba(182, 225, 0, 0.3);
  
  /* Glass effect */
  --glass-bg: rgba(255, 255, 255, 0.7);
  --glass-border: rgba(255, 255, 255, 0.2);
  
  /* Gradienty */
  --gradient-primary: linear-gradient(135deg, #b6e100 0%, #8fb300 100%);
  --gradient-dark: linear-gradient(135deg, #262626 0%, #171717 100%);
  --gradient-light: linear-gradient(135deg, #ffffff 0%, #fafafa 100%);
  --gradient-glow: radial-gradient(circle at 50% 50%, rgba(182, 225, 0, 0.1) 0%, transparent 70%);
}

/* Tmavý režim */
[data-theme="dark"],
.dark {
  /* Pozadí */
  --bg-primary: #0a0a0a;
  --bg-secondary: #171717;
  --bg-tertiary: #262626;
  --bg-card: #1a1a1a;
  --bg-hover: #2a2a2a;
  
  /* Text */
  --text-primary: #fafafa;
  --text-secondary: #d4d4d4;
  --text-tertiary: #a3a3a3;
  --text-inverse: #171717;
  
  /* Borders */
  --border-color: #404040;
  --border-hover: #525252;
  
  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.4), 0 2px 4px -1px rgba(0, 0, 0, 0.3);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.5), 0 4px 6px -2px rgba(0, 0, 0, 0.3);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.6), 0 10px 10px -5px rgba(0, 0, 0, 0.4);
  --shadow-glow: 0 0 30px rgba(182, 225, 0, 0.4);
  
  /* Glass effect */
  --glass-bg: rgba(26, 26, 26, 0.7);
  --glass-border: rgba(64, 64, 64, 0.3);
  
  /* Gradienty */
  --gradient-dark: linear-gradient(135deg, #1a1a1a 0%, #0a0a0a 100%);
  --gradient-light: linear-gradient(135deg, #2a2a2a 0%, #1a1a1a 100%);
}

/* ===================================
   Reset a základní styly
   =================================== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  color: var(--text-primary);
  background-color: var(--bg-primary);
  transition: background-color 0.3s ease, color 0.3s ease;
  min-height: 100vh;
  position: relative;
  overflow-x: hidden;
}

/* Luxusní pozadí s gradientem */
body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--gradient-glow);
  pointer-events: none;
  z-index: -1;
}

/* ===================================
   Typography
   =================================== */
h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.2;
  color: var(--text-primary);
  margin-bottom: 1rem;
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.75rem; }
h4 { font-size: 1.5rem; }
h5 { font-size: 1.25rem; }
h6 { font-size: 1.125rem; }

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

a {
  color: var(--primary);
  text-decoration: none;
  transition: all 0.2s ease;
}

a:hover {
  color: var(--primary-dark);
  text-decoration: underline;
}

/* ===================================
   Komponenty - Glass Morphism
   =================================== */
.glass {
  background: var(--glass-bg);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid var(--glass-border);
  border-radius: 16px;
  box-shadow: var(--shadow-lg);
}

.card-glass {
  background: var(--glass-bg);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid var(--glass-border);
  border-radius: 16px;
  padding: 1.5rem;
  box-shadow: var(--shadow-md);
  transition: all 0.3s ease;
}

.card-glass:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-xl);
  border-color: var(--primary);
}

/* ===================================
   Tlačítka
   =================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.5rem;
  font-size: 1rem;
  font-weight: 600;
  border-radius: 12px;
  border: none;
  cursor: pointer;
  transition: all 0.3s ease;
  text-decoration: none;
  position: relative;
  overflow: hidden;
}

.btn::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.2);
  transform: translate(-50%, -50%);
  transition: width 0.6s, height 0.6s;
}

.btn:hover::before {
  width: 300px;
  height: 300px;
}

.btn-primary {
  background: var(--gradient-primary);
  color: var(--text-inverse);
  box-shadow: var(--shadow-md);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg), var(--shadow-glow);
}

.btn-secondary {
  background: var(--bg-tertiary);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
  }

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

.btn-glass {
  background: var(--glass-bg);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid var(--glass-border);
  color: var(--text-primary);
}

.btn-glass:hover {
  background: var(--glass-bg);
  border-color: var(--primary);
  box-shadow: var(--shadow-md);
}

/* ===================================
   Formuláře
   =================================== */
.input-glass {
  width: 100%;
  padding: 0.75rem 1rem;
  font-size: 1rem;
  background: var(--glass-bg);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid var(--glass-border);
  border-radius: 12px;
  color: var(--text-primary);
  transition: all 0.3s ease;
}

.input-glass:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(182, 225, 0, 0.1);
}

.input-glass::placeholder {
  color: var(--text-tertiary);
}

/* ===================================
   Navigace
   =================================== */
header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--glass-border);
  transition: all 0.3s ease;
}

.navbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 0;
}

.navbar-brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-primary);
}

.navbar-brand img {
  height: 3rem;
  width: 3rem;
  filter: drop-shadow(0 0 10px rgba(182, 225, 0, 0.3));
}

/* ===================================
   Theme Toggle Switch
   =================================== */
.mode-switch {
  position: relative;
  display: inline-block;
  width: 60px;
  height: 30px;
  background: var(--bg-tertiary);
  border-radius: 30px;
  cursor: pointer;
  transition: all 0.3s ease;
  border: 1px solid var(--border-color);
}

.mode-switch input {
  display: none;
}

.mode-switch .sun,
.mode-switch .moon {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  font-size: 16px;
  transition: all 0.3s ease;
}

.mode-switch .sun {
  left: 8px;
  opacity: 1;
}

.mode-switch .moon {
  right: 8px;
  opacity: 0.3;
}

.mode-switch input:checked ~ .sun {
  opacity: 0.3;
}

.mode-switch input:checked ~ .moon {
  opacity: 1;
}

.mode-switch::after {
  content: '';
  position: absolute;
  top: 3px;
  left: 3px;
  width: 24px;
  height: 24px;
  background: var(--bg-primary);
  border-radius: 50%;
  transition: all 0.3s ease;
  box-shadow: var(--shadow-sm);
}

.mode-switch input:checked ~ ::after {
  transform: translateX(30px);
}

/* ===================================
   Tabulky
   =================================== */
.table-glass {
  width: 100%;
  background: var(--glass-bg);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid var(--glass-border);
  border-radius: 16px;
  overflow: hidden;
}

.table-glass thead {
  background: var(--bg-tertiary);
  border-bottom: 1px solid var(--border-color);
}

.table-glass th {
  padding: 1rem;
  text-align: left;
  font-weight: 600;
  color: var(--text-primary);
}

.table-glass td {
  padding: 1rem;
  border-bottom: 1px solid var(--border-color);
  color: var(--text-secondary);
}

.table-glass tbody tr {
  transition: all 0.2s ease;
}

.table-glass tbody tr:hover {
  background: var(--bg-hover);
}

.table-glass tbody tr:last-child td {
  border-bottom: none;
}

/* ===================================
   Tabs
   =================================== */
.tabs {
  display: flex;
  gap: 0.5rem;
  border-bottom: 1px solid var(--border-color);
  margin-bottom: 2rem;
}

.tab {
  padding: 0.75rem 1.5rem;
  font-weight: 600;
  color: var(--text-tertiary);
  border-bottom: 2px solid transparent;
  transition: all 0.3s ease;
  cursor: pointer;
  position: relative;
}

.tab:hover {
  color: var(--text-primary);
}

.tab.tab-active {
  color: var(--primary);
  border-bottom-color: var(--primary);
}

.tab.tab-active::after {
  content: '';
  position: absolute;
  bottom: -1px;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--gradient-primary);
  box-shadow: var(--shadow-glow);
}

/* ===================================
   Badges
   =================================== */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 0.25rem 0.75rem;
  font-size: 0.875rem;
  font-weight: 600;
  border-radius: 9999px;
  transition: all 0.2s ease;
}

.badge-success {
  background: rgba(34, 197, 94, 0.1);
  color: #22c55e;
  border: 1px solid rgba(34, 197, 94, 0.2);
}

.badge-warning {
  background: rgba(251, 191, 36, 0.1);
  color: #fbbf24;
  border: 1px solid rgba(251, 191, 36, 0.2);
}

.badge-error {
  background: rgba(239, 68, 68, 0.1);
  color: #ef4444;
  border: 1px solid rgba(239, 68, 68, 0.2);
}

.badge-info {
  background: rgba(59, 130, 246, 0.1);
  color: #3b82f6;
  border: 1px solid rgba(59, 130, 246, 0.2);
}

/* ===================================
   Animace
   =================================== */
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(10px);
}
  to {
    opacity: 1;
    transform: translateY(0);
}
}

@keyframes slideIn {
  from {
    opacity: 0;
    transform: translateX(-20px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
}
}

@keyframes pulse {
  0%, 100% {
    opacity: 1;
}
  50% {
    opacity: 0.5;
  }
}

@keyframes shimmer {
  0% {
    background-position: -200% 0;
  }
  100% {
    background-position: 200% 0;
  }
}

.animate-fadeIn {
  animation: fadeIn 0.5s ease-out;
}

.animate-slideIn {
  animation: slideIn 0.3s ease-out;
}

.animate-pulse {
  animation: pulse 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

/* ===================================
   Loading States
   =================================== */
.skeleton {
  background: linear-gradient(
    90deg,
    var(--bg-tertiary) 25%,
    var(--bg-hover) 50%,
    var(--bg-tertiary) 75%
  );
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
  border-radius: 8px;
}

.loading {
  display: inline-block;
  width: 20px;
  height: 20px;
  border: 3px solid var(--border-color);
  border-radius: 50%;
  border-top-color: var(--primary);
  animation: spin 1s ease-in-out infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* ===================================
   Utility Classes
   =================================== */
.container {
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 1rem;
}

.text-primary { color: var(--primary) !important; }
.text-secondary { color: var(--text-secondary) !important; }
.text-tertiary { color: var(--text-tertiary) !important; }

.bg-primary { background-color: var(--bg-primary) !important; }
.bg-secondary { background-color: var(--bg-secondary) !important; }
.bg-tertiary { background-color: var(--bg-tertiary) !important; }

.border-primary { border-color: var(--primary) !important; }
.border-secondary { border-color: var(--border-color) !important; }

.shadow-sm { box-shadow: var(--shadow-sm) !important; }
.shadow-md { box-shadow: var(--shadow-md) !important; }
.shadow-lg { box-shadow: var(--shadow-lg) !important; }
.shadow-xl { box-shadow: var(--shadow-xl) !important; }

.rounded { border-radius: 8px !important; }
.rounded-lg { border-radius: 16px !important; }
.rounded-full { border-radius: 9999px !important; }

.transition-all {
  transition: all 0.3s ease !important;
}

/* ===================================
   Responsive
   =================================== */
@media (max-width: 768px) {
  h1 { font-size: 2rem; }
  h2 { font-size: 1.75rem; }
  h3 { font-size: 1.5rem; }
  
  .container {
    padding: 0 0.75rem;
  }
  
  .card-glass {
    padding: 1rem;
}

  .btn {
    padding: 0.625rem 1.25rem;
  font-size: 0.875rem;
  }
}

/* ===================================
   Print Styles
   =================================== */
@media print {
body {
    background: white;
    color: black;
}

  .no-print {
    display: none !important;
  }
}

/* ===================================
   Scrollbar Styling
   =================================== */
::-webkit-scrollbar {
  width: 10px;
  height: 10px;
}

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

::-webkit-scrollbar-thumb {
  background: var(--bg-tertiary);
  border-radius: 5px;
  transition: background 0.3s ease;
}

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

/* Firefox */
* {
  scrollbar-width: thin;
  scrollbar-color: var(--bg-tertiary) var(--bg-secondary);
}

/* ===================================
   Focus Styles
   =================================== */
:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}

/* ===================================
   Selection
   =================================== */
::selection {
  background: var(--primary);
  color: var(--text-inverse);
}

::-moz-selection {
  background: var(--primary);
  color: var(--text-inverse);
}