:root {
  /* Glassmorphism Color Palette - Blue Professional Based on Provided Colors */
  /* Base colors from palette */
  --color-lightest: #f9f7f7; /* Velmi světlá (off-white) */
  --color-light: #dbe2ef; /* Světlá modrá */
  --color-medium: #3f72af; /* Střední modrá */
  --color-darkest: #112d4e; /* Velmi tmavá (navy) */

  /* Glass effect variants with stronger transparency for better glassmorphism */
  --glass-lightest: rgba(249, 247, 247, 0.4);
  --glass-light: rgba(219, 226, 239, 0.5);
  --glass-medium: rgba(63, 114, 175, 0.3);
  --glass-darkest: rgba(17, 45, 78, 0.5);

  --glass-white: rgba(249, 247, 247, 0.25);
  --glass-white-medium: rgba(249, 247, 247, 0.35);
  --glass-white-strong: rgba(249, 247, 247, 0.5);

  --glass-gray: rgba(219, 226, 239, 0.2);
  --glass-gray-medium: rgba(219, 226, 239, 0.3); /* Glass borders and effects */
  --glass-border: rgba(219, 226, 239, 0.5);
  --glass-shadow: rgba(17, 45, 78, 0.15);

  /* Text colors */
  --text-primary: #1a2332;
  --text-secondary: #4a5568;
  --text-light: #ffffff;
  --text-muted: #718096;

  /* Accent colors */
  --accent-primary: #3f72af; /* Primary blue */
  --accent-primary-hover: #112d4e;
  --accent-secondary: #dbe2ef; /* Secondary light blue */
  --accent-emergency: #3f72af; /* Blue pro havarijní */
  --accent-light: #f9f7f7; /* Light off-white accent */

  /* Background */
  --bg-gradient-start: #f9f7f7;
  --bg-gradient-end: #eff1f5;

  /* Spacing */
  --container-max: 1200px;
  --section-padding: 5rem 2rem;

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

  /* Transitions */
  --transition-fast: 0.2s ease;
  --transition-smooth: 0.3s ease;
}

/* Reset and base styles */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
  scroll-padding-top: 100px;
  overflow-x: hidden;
}

body {
  font-family: "Work Sans", -apple-system, BlinkMacSystemFont, "Segoe UI",
    Oxygen, Ubuntu, Cantarell, sans-serif;
  color: var(--text-primary);
  line-height: 1.6;
  font-weight: 400;
  background: linear-gradient(
    135deg,
    var(--bg-gradient-start) 0%,
    var(--bg-gradient-end) 100%
  );
  background-attachment: fixed;
  min-height: 100vh;
  overflow-x: hidden;
  width: 100%;
  max-width: 100vw;
}

/* Glass Card Component */
.glass-card {
  background: var(--glass-white-medium);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-radius: var(--radius-md);
  border: 1px solid var(--glass-border);
  box-shadow: 0 8px 32px 0 var(--glass-shadow);
  transition: box-shadow var(--transition-smooth);
}

.glass-card:hover {
  box-shadow: 0 12px 40px 0 var(--glass-shadow),
    0 8px 16px 0 rgba(17, 45, 78, 0.1),
    inset 0 1px 1px 0 rgba(255, 255, 255, 0.4);
}

.glass-card-teal {
  background: var(--glass-medium);
  backdrop-filter: blur(25px);
}

.glass-card-dark {
  background: var(--glass-darkest);
  backdrop-filter: blur(30px);
}

.glass-card-light {
  background: var(--glass-lightest);
  backdrop-filter: blur(20px);
}

.glass-card-strong {
  background: var(--glass-white-strong);
}

/* Glass card with dark gradient */
.glass-card-gradient {
  background: linear-gradient(
    135deg,
    var(--color-medium) 0%,
    var(--color-darkest) 100%
  );
  color: var(--text-light);
  position: relative;
  overflow: hidden;
}

.glass-card-gradient::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(
    90deg,
    transparent 0%,
    rgba(255, 255, 255, 0.1) 50%,
    transparent 100%
  );
  animation: shimmer var(--shimmer-duration, 3s) infinite;
  animation-delay: var(--shimmer-delay, 0s);
  pointer-events: none;
}

@keyframes shimmer {
  0% {
    transform: translateX(-100%);
  }
  100% {
    transform: translateX(100%);
  }
}

/* Container */
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 2rem;
}

/* Section spacing */
section {
  padding: var(--section-padding);
  position: relative;
}

/* Typography */
h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: "Poppins", -apple-system, BlinkMacSystemFont, sans-serif;
  font-weight: 600;
  line-height: 1.3;
  margin-bottom: 1rem;
}

h1 {
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 700;
}

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

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

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

/* Buttons */
.btn {
  display: inline-block;
  padding: 0.875rem 2rem;
  border-radius: var(--radius-sm);
  font-weight: 600;
  text-decoration: none;
  transition: all var(--transition-smooth);
  cursor: pointer;
  border: none;
  font-size: 1rem;
}

.btn-primary {
  background: var(--accent-primary);
  color: var(--text-light);
}

.btn-primary:hover {
  background: #2b5a94;
  color: var(--text-light);
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(63, 114, 175, 0.5);
}

.btn-emergency {
  background: var(--accent-emergency);
  color: var(--text-light);
  animation: pulse 2s infinite;
  font-weight: 700;
}

.btn-emergency:hover {
  background: #2b5a94;
  color: var(--text-light);
  animation: none;
}

@keyframes pulse {
  0%,
  100% {
    box-shadow: 0 0 0 0 rgba(63, 114, 175, 0.7);
  }
  50% {
    box-shadow: 0 0 0 10px rgba(63, 114, 175, 0);
  }
}

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

.btn-glass:hover {
  background: var(--color-light);
  color: var(--text-primary);
  transform: translateY(-2px);
  border-color: var(--accent-primary);
}

/* Links */
a {
  color: var(--accent-primary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--accent-primary-hover);
}

/* Grid layouts */
.grid {
  display: grid;
  gap: 2rem;
}

.grid-2 {
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.grid-3 {
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

/* Glassmorphism overlay effect */
.glass-overlay {
  position: relative;
  overflow: hidden;
}

.glass-overlay::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    135deg,
    var(--glass-white) 0%,
    var(--glass-medium) 50%,
    var(--glass-white) 100%
  );
  opacity: 0;
  transition: opacity var(--transition-smooth);
}

.glass-overlay:hover::before {
  opacity: 1;
}

/* Responsive utilities */
@media (max-width: 768px) {
  :root {
    --section-padding: 3rem 1.5rem;
  }

  .container {
    padding: 0 1rem;
  }

  .grid {
    gap: 1.5rem;
  }
}

/* Smooth fade-in animation */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.fade-in-up {
  animation: fadeInUp 0.6s ease-out;
}

/* Text utilities */
.text-center {
  text-align: center;
}

.text-muted {
  color: var(--text-muted);
}

/* Status badge */
.badge {
  display: inline-block;
  padding: 0.65rem 1.25rem;
  border-radius: 25px;
  font-size: 1rem;
  font-weight: 700;
  backdrop-filter: blur(10px);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.badge-open {
  background: rgba(63, 114, 175, 0.35);
  color: #ffffff;
  border: 2px solid rgba(63, 114, 175, 0.8);
}

.badge-closed {
  background: rgba(219, 226, 239, 0.5);
  color: #112d4e;
  border: 2px solid rgba(219, 226, 239, 0.8);
  font-weight: 600;
}