:root {
  /* Barvy */
  --color-black: #000000;
  --color-white: #ffffff;
  --color-orange: #b91200; /* Jiskry - oranžová */
  --color-yellow: #fb6331; /* Jiskry - žlutá */
  --color-blue: #00a8e8; /* Jiskry - modrá */
  --color-gray: #333333;

  /* Fonty */
  --font-main: "Inter", sans-serif;
  --font-heading: "Montserrat", sans-serif;

  /* Spacing */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 2rem;
  --spacing-lg: 4rem;
  --spacing-xl: 6rem;

  /* ============================================
     HERO ANIMACE - Modulární konfigurace
     ============================================ */
  /* Zoom animace */
  --hero-zoom-duration: 15s; /* Délka jednoho cyklu zoom animace (pomalejší) */
  --hero-zoom-scale: 1.1; /* Maximální velikost zoomu (1.10 = 110% - jemný efekt) */
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-main);
  background-color: var(--color-black);
  color: var(--color-white);
  line-height: 1.6;
  overflow-x: hidden;
}

/* ============================================
   CUSTOM SCROLLBAR (Webkit)
   ============================================ */
/* Šířka scrollbaru */
::-webkit-scrollbar {
  width: 12px;
}

/* Track (pozadí scrollbaru) */
::-webkit-scrollbar-track {
  background: var(--color-black);
  border-left: 1px solid rgba(255, 255, 255, 0.1);
}

/* Handle (posuvník) */
::-webkit-scrollbar-thumb {
  background: linear-gradient(180deg, var(--color-orange), var(--color-yellow));
  border-radius: 10px;
  border: 2px solid var(--color-black);
}

/* Handle on hover */
::-webkit-scrollbar-thumb:hover {
  background: linear-gradient(180deg, var(--color-yellow), var(--color-orange));
  box-shadow: 0 0 10px rgba(185, 18, 0, 0.5);
}

/* ============================================
   CONTAINER
   ============================================ */
.container {
  max-width: 1200px;
  padding: 0 var(--spacing-md);
  margin: 0 auto;
}

.container.wide {
  max-width: 1600px;
}

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

h1 {
  font-size: 3.5rem;
}
h2 {
  font-size: 2.5rem;
}
h3 {
  font-size: 1.75rem;
}
h4 {
  font-size: 1.25rem;
}

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

a {
  color: var(--color-white);
  text-decoration: none;
  transition: color 0.3s ease;
}

a:hover {
  color: var(--color-white);
}

/* ============================================
   HEADER & NAVIGACE
   ============================================ */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  background-color: transparent;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  z-index: 1000;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.navbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.5rem 0;
  gap: 1rem;
}

/* Logo */
.logo a {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  color: var(--color-white);
  font-size: 1.5rem;
  font-weight: 700;
  font-family: var(--font-heading);
}

.logo-img {
  width: 200px;
  height: 60px;
  object-fit: cover;
  object-position: center;
  border-radius: 8px;
}

.logo-text {
  color: var(--color-white);
  font-size: 1.5rem;
  transition: font-size 0.3s ease;
  min-width: 100px;
}

/* Navigační menu */
.nav-menu {
  display: flex;
  list-style: none;
  gap: 0.5rem;
  align-items: center;
  flex-wrap: wrap;
}

.nav-link {
  color: var(--color-white);
  font-weight: 500;
  padding: 0.4rem 0.7rem;
  border-radius: 4px;
  transition: all 0.3s ease;
  font-size: 0.9rem;
  white-space: nowrap;
}

.nav-link:hover {
  background-color: rgba(255, 107, 53, 0.1);
  color: var(--color-white);
}

/* Přepínač jazyků */
.language-switcher {
  display: flex;
  gap: 0.5rem;
}

/* Language switcher v menu - skrytý defaultně */
.nav-menu > .language-switcher {
  display: none;
}

.lang-btn {
  background: transparent;
  border: 1px solid var(--color-white);
  color: var(--color-white);
  padding: 0.5rem 1rem;
  border-radius: 4px;
  cursor: pointer;
  font-weight: 600;
  transition: all 0.3s ease;
}

.lang-btn:hover {
  background-color: var(--color-orange);
  border-color: var(--color-orange);
}

.lang-btn.active {
  background-color: var(--color-orange);
  border-color: var(--color-orange);
}

/* Hamburger menu */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 4px;
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
}

.hamburger .bar {
  width: 25px;
  height: 3px;
  background-color: var(--color-white);
  border-radius: 2px;
  transition: all 0.3s ease;
}

/* Hamburger active state - animace na X */
.hamburger.active .bar:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.hamburger.active .bar:nth-child(2) {
  opacity: 0;
}

.hamburger.active .bar:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ============================================
   BUTTONS
   ============================================ */
.btn {
  display: inline-block;
  padding: 1rem 2rem;
  border-radius: 8px;
  font-weight: 600;
  font-size: 1rem;
  text-align: center;
  cursor: pointer;
  transition: all 0.3s ease;
  border: 2px solid transparent;
}

.btn-primary {
  background-color: var(--color-orange);
  color: var(--color-white);
  border-color: var(--color-orange);
}

.btn-primary:hover {
  background-color: var(--color-yellow);
  border-color: var(--color-yellow);
  color: var(--color-black);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(255, 107, 53, 0.4);
}

.btn-secondary {
  background-color: transparent;
  color: var(--color-white);
  border-color: var(--color-white);
}

.btn-secondary:hover {
  background-color: var(--color-white);
  color: var(--color-black);
}

/* ============================================
   SECTION TITLE
   ============================================ */
.section-title {
  text-align: center;

  margin-top: var(--spacing-lg);
  margin-bottom: var(--spacing-lg);
  font-size: 2.5rem;
  color: var(--color-white);
  position: relative;
}

.section-title::after {
  content: "";
  display: block;
  width: 80px;
  height: 4px;
  background: linear-gradient(90deg, var(--color-orange), var(--color-yellow));
  margin: 1rem auto 0;
  border-radius: 2px;
}

/* ============================================
   FOOTER
   ============================================ */
.footer {
  background-color: #0a0a0a;
  padding: var(--spacing-xl) 0 var(--spacing-md);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-lg);
}

.footer-section h4 {
  color: var(--color-white);
  margin-bottom: var(--spacing-sm);
}

.footer-section p,
.footer-section ul {
  color: rgba(255, 255, 255, 0.7);
  font-size: 0.9rem;
}

.footer-section ul {
  list-style: none;
}

.footer-section ul li {
  margin-bottom: 0.5rem;
}

.footer-section a {
  color: rgba(255, 255, 255, 0.7);
}

.footer-section a:hover {
  color: var(--color-white);
}

/* Social links */
.social-links {
  display: flex;
  gap: 1rem;
  margin-top: 1rem;
}

.social-links a {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background-color: rgba(255, 255, 255, 0.1);
  transition: all 0.3s ease;
}

.social-links a:hover {
  background-color: var(--color-orange);
  transform: translateY(-3px);
}

.social-links svg {
  width: 20px;
  height: 20px;
  fill: var(--color-white);
}

/* Footer bottom */
.footer-bottom {
  text-align: center;
  padding-top: var(--spacing-md);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  color: rgba(255, 255, 255, 0.5);
  font-size: 0.9rem;
}
.footer-bottom img {
  width: 200px;
}

/* Styling scrollbar for WebKit browsers - ČERVENÝ VIBE */

/* 1. Celý scrollbar */
::-webkit-scrollbar {
  width: 7px;
  height: 12px;
  /* Dáme průhledné pozadí, ať vynikne dráha */
  background-color: transparent;
}

/* 2. Dráha posuvníku (track) - použijeme tvou RGBA s průhledností */
::-webkit-scrollbar-track {
  /* Jemný vnitřní stín pro hloubku */
  border-radius: 5px;
  /* Červená s 30% průhledností pro jemný efekt pozadí */
  background-color: rgba(185, 18, 0, 0);
}

/* 3. Táhlo posuvníku (thumb) - uděláme ho plnou červenou */
::-webkit-scrollbar-thumb {
  border-radius: 10px;
  /* Intenzivní stín, který se hodí k červené */
  -webkit-box-shadow: inset 0 0 6px rgba(0, 0, 0, 0.5);
  /* Plná, sytá červená */
  background-color: rgb(53, 5, 0);
}