/* ===================================================================
   Variables
   =================================================================== */
:root {
  /* Colors */
  --color-bg: #f5f8ff;
  --color-bg-elevated: #ffffff;
  --color-text: #101828;
  --color-text-soft: #667085;
  --color-primary: #2563eb; /* energetic blue */
  --color-primary-soft: rgba(37, 99, 235, 0.08);
  --color-primary-strong: #1d4ed8;
  --color-accent: #22c55e; /* fresh green */
  --color-accent-soft: rgba(34, 197, 94, 0.1);
  --color-success: #16a34a;
  --color-warning: #f59e0b;
  --color-danger: #ef4444;

  --gray-50: #f9fafb;
  --gray-100: #f3f4f6;
  --gray-200: #e5e7eb;
  --gray-300: #d1d5db;
  --gray-400: #9ca3af;
  --gray-500: #6b7280;
  --gray-600: #4b5563;
  --gray-700: #374151;
  --gray-800: #1f2933;
  --gray-900: #111827;

  /* Typography */
  --font-sans: system-ui, -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", sans-serif;
  --font-display: "Poppins", system-ui, -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", sans-serif;

  --fs-xs: 0.75rem;   /* 12px */
  --fs-sm: 0.875rem;  /* 14px */
  --fs-base: 1rem;    /* 16px */
  --fs-lg: 1.125rem;  /* 18px */
  --fs-xl: 1.25rem;   /* 20px */
  --fs-2xl: 1.5rem;   /* 24px */
  --fs-3xl: 1.875rem; /* 30px */
  --fs-4xl: 2.25rem;  /* 36px */
  --fs-5xl: 3rem;     /* 48px */

  --lh-tight: 1.15;
  --lh-snug: 1.3;
  --lh-normal: 1.5;
  --lh-relaxed: 1.7;

  /* Spacing scale (0–96px) */
  --space-0: 0;
  --space-1: 0.25rem;  /* 4px */
  --space-2: 0.5rem;   /* 8px */
  --space-3: 0.75rem;  /* 12px */
  --space-4: 1rem;     /* 16px */
  --space-5: 1.25rem;  /* 20px */
  --space-6: 1.5rem;   /* 24px */
  --space-8: 2rem;     /* 32px */
  --space-10: 2.5rem;  /* 40px */
  --space-12: 3rem;    /* 48px */
  --space-16: 4rem;    /* 64px */
  --space-20: 5rem;    /* 80px */
  --space-24: 6rem;    /* 96px */

  /* Radius */
  --radius-xs: 0.25rem;   /* 4px */
  --radius-sm: 0.5rem;    /* 8px */
  --radius-md: 0.75rem;   /* 12px */
  --radius-lg: 1rem;      /* 16px */
  --radius-pill: 999px;

  /* Shadows */
  --shadow-sm: 0 4px 10px rgba(15, 23, 42, 0.08);
  --shadow-md: 0 12px 30px rgba(15, 23, 42, 0.12);
  --shadow-lg: 0 18px 45px rgba(15, 23, 42, 0.16);

  /* Transitions */
  --transition-fast: 120ms ease-out;
  --transition-normal: 200ms ease-out;
  --transition-slow: 320ms ease;
}

/* Respect reduced motion */
@media (prefers-reduced-motion: reduce) {
  :root {
    scroll-behavior: auto;
  }

  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
}

/* ===================================================================
   Reset / Normalize
   =================================================================== */
*, *::before, *::after {
  box-sizing: border-box;
}

* {
  margin: 0;
}

html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body {
  min-height: 100vh;
  text-rendering: optimizeLegibility;
}

a {
  text-decoration: none;
  color: inherit;
}

a img {
  border: 0;
}

img, picture, video, canvas, svg {
  display: block;
  max-width: 100%;
  height: auto;
}

button, input, textarea, select {
  font: inherit;
  color: inherit;
}

button {
  cursor: pointer;
  border: none;
  background: none;
}

ul, ol {
  padding: 0;
  list-style: none;
}

fieldset {
  border: 0;
  margin: 0;
  padding: 0;
}

textarea {
  resize: vertical;
}

/* ===================================================================
   Base Typography & Layout
   =================================================================== */
body {
  font-family: var(--font-sans);
  font-size: var(--fs-base);
  line-height: var(--lh-normal);
  color: var(--color-text);
  background-color: var(--color-bg);
  -webkit-font-smoothing: antialiased;
}

main {
  display: block;
}

p {
  margin-bottom: var(--space-4);
  color: var(--color-text-soft);
}

p:last-child {
  margin-bottom: 0;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: var(--lh-tight);
  color: var(--color-text);
  margin-bottom: var(--space-3);
}

h1 {
  font-size: clamp(var(--fs-3xl), 6vw, var(--fs-5xl));
}

h2 {
  font-size: clamp(var(--fs-2xl), 4vw, var(--fs-4xl));
}

h3 {
  font-size: var(--fs-2xl);
}

h4 {
  font-size: var(--fs-xl);
}

h5 {
  font-size: var(--fs-lg);
}

h6 {
  font-size: var(--fs-base);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

small {
  font-size: var(--fs-sm);
}

strong {
  font-weight: 600;
}

a {
  color: var(--color-primary);
  transition: color var(--transition-normal), opacity var(--transition-fast);
}

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

/* ===================================================================
   Accessibility & Focus
   =================================================================== */
:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 3px;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* ===================================================================
   Layout & Utilities
   =================================================================== */
.container {
  width: 100%;
  margin-inline: auto;
  padding-inline: var(--space-4);
  max-width: 1120px;
}

@media (min-width: 1200px) {
  .container {
    max-width: 1200px;
  }
}

.section {
  padding-block: var(--space-10);
}

@media (min-width: 768px) {
  .section {
    padding-block: var(--space-16);
  }
}

/* Flex helpers */
.flex {
  display: flex;
}

.inline-flex {
  display: inline-flex;
}

.flex-center {
  display: flex;
  align-items: center;
  justify-content: center;
}

.flex-between {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.flex-column {
  display: flex;
  flex-direction: column;
}

.flex-wrap {
  flex-wrap: wrap;
}

.gap-2 {
  gap: var(--space-2);
}

.gap-3 {
  gap: var(--space-3);
}

.gap-4 {
  gap: var(--space-4);
}

.gap-6 {
  gap: var(--space-6);
}

/* Grid helpers */
.grid {
  display: grid;
  gap: var(--space-6);
}

.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-6);
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--space-6);
}

@media (max-width: 767.98px) {
  .grid-2,
  .grid-3 {
    grid-template-columns: 1fr;
  }
}

.text-center {
  text-align: center;
}

.mt-0 { margin-top: 0; }
.mt-4 { margin-top: var(--space-4); }
.mt-6 { margin-top: var(--space-6); }
.mt-8 { margin-top: var(--space-8); }

.mb-0 { margin-bottom: 0; }
.mb-4 { margin-bottom: var(--space-4); }
.mb-6 { margin-bottom: var(--space-6); }
.mb-8 { margin-bottom: var(--space-8); }

.pt-0 { padding-top: 0; }
.pb-0 { padding-bottom: 0; }

.badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.1rem 0.6rem;
  border-radius: var(--radius-pill);
  font-size: var(--fs-xs);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-weight: 600;
  background: var(--color-primary-soft);
  color: var(--color-primary-strong);
}

.text-gradient-primary {
  background: linear-gradient(120deg, var(--color-primary), var(--color-accent));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* ===================================================================
   Components
   =================================================================== */

/* Header layout hint classes for centered logo with split nav */
.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  backdrop-filter: blur(16px);
  background: rgba(245, 248, 255, 0.86);
  border-bottom: 1px solid rgba(148, 163, 184, 0.18);
}

.site-header-inner {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: var(--space-4);
  padding-block: var(--space-3);
}

.header-nav-left,
.header-nav-right {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-4);
}

.header-logo {
  display: flex;
  align-items: center;
  justify-content: center;
}

.header-link {
  position: relative;
  font-size: var(--fs-sm);
  font-weight: 500;
  color: var(--color-text-soft);
  padding-block: 0.25rem;
  transition: color var(--transition-normal);
}

.header-link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 0;
  height: 2px;
  border-radius: var(--radius-pill);
  background: linear-gradient(120deg, var(--color-primary), var(--color-accent));
  transition: width var(--transition-normal);
}

.header-link:hover {
  color: var(--color-text);
}

.header-link:hover::after,
.header-link[aria-current="page"]::after {
  width: 100%;
}

.header-link[aria-current="page"] {
  color: var(--color-text);
}

@media (max-width: 767.98px) {
  .site-header-inner {
    grid-template-columns: auto 1fr auto;
  }

  .header-nav-left,
  .header-nav-right {
    justify-content: flex-start;
  }
}

/* Hero base styles including slider container */
.hero {
  position: relative;
  min-height: 70vh;
  color: #ffffff;
  display: flex;
  align-items: center;
  overflow: hidden;
}

.hero-slider {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  overflow: hidden;
  z-index: -2;
}

.hero-slide {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  opacity: 0;
  transition: opacity 800ms ease-in-out, transform 800ms ease-in-out;
  transform: scale(1.05);
}

.hero-slide.is-active {
  opacity: 1;
  transform: scale(1);
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(15, 23, 42, 0.65), rgba(15, 23, 42, 0.3));
  mix-blend-mode: multiply;
  z-index: -1;
}

.hero-inner {
  position: relative;
  z-index: 1;
  padding-block: var(--space-16);
  width: 100%;
}

.hero-kicker {
  margin-bottom: var(--space-3);
}

.hero-title {
  max-width: 20ch;
  margin-bottom: var(--space-4);
}

.hero-text {
  max-width: 40ch;
  font-size: var(--fs-lg);
  line-height: var(--lh-relaxed);
  margin-bottom: var(--space-6);
  color: rgba(241, 245, 249, 0.92);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
}

@media (max-width: 767.98px) {
  .hero {
    min-height: 80vh;
    align-items: flex-end;
  }

  .hero-inner {
    padding-block: var(--space-12);
  }

  .hero-title {
    font-size: clamp(var(--fs-2xl), 9vw, var(--fs-4xl));
  }
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.45rem;
  font-weight: 600;
  border-radius: var(--radius-pill);
  padding: 0.7rem 1.6rem;
  font-size: var(--fs-sm);
  letter-spacing: 0.03em;
  text-transform: uppercase;
  border: 1px solid transparent;
  transition: background-color var(--transition-normal), color var(--transition-normal), transform var(--transition-fast), box-shadow var(--transition-fast), border-color var(--transition-normal), opacity var(--transition-fast);
}

.btn-primary {
  background: linear-gradient(120deg, var(--color-primary), var(--color-accent));
  color: #ffffff;
  box-shadow: var(--shadow-md);
}

.btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow-lg);
}

.btn-outline {
  background-color: rgba(15, 23, 42, 0.4);
  color: #e5f4ff;
  border-color: rgba(148, 163, 184, 0.6);
  backdrop-filter: blur(14px);
}

.btn-outline:hover {
  background-color: rgba(15, 23, 42, 0.7);
}

.btn-ghost {
  background-color: transparent;
  color: var(--color-primary);
}

.btn-ghost:hover {
  background-color: var(--color-primary-soft);
}

.btn:disabled,
.btn[aria-disabled="true"] {
  opacity: 0.6;
  cursor: not-allowed;
  box-shadow: none;
  transform: none;
}

.btn-icon {
  padding-inline: 1rem;
}

/* Inputs & Form elements */
.form-field {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.form-label {
  font-size: var(--fs-sm);
  font-weight: 500;
  color: var(--color-text);
}

.form-control {
  width: 100%;
  border-radius: var(--radius-md);
  border: 1px solid var(--gray-200);
  background-color: #ffffff;
  padding: 0.7rem 0.9rem;
  font-size: var(--fs-sm);
  color: var(--color-text);
  transition: border-color var(--transition-normal), box-shadow var(--transition-normal), background-color var(--transition-fast);
}

.form-control::placeholder {
  color: var(--gray-400);
}

.form-control:focus-visible {
  outline: none;
  border-color: rgba(37, 99, 235, 0.6);
  box-shadow: 0 0 0 1px rgba(37, 99, 235, 0.2), 0 8px 20px rgba(15, 23, 42, 0.08);
}

.form-control[aria-invalid="true"] {
  border-color: var(--color-danger);
}

.form-helper {
  font-size: var(--fs-xs);
  color: var(--gray-500);
}

.form-error {
  font-size: var(--fs-xs);
  color: var(--color-danger);
}

/* Card */
.card {
  background-color: var(--color-bg-elevated);
  border-radius: var(--radius-lg);
  border: 1px solid rgba(148, 163, 184, 0.25);
  box-shadow: var(--shadow-sm);
  padding: var(--space-5);
  transition: box-shadow var(--transition-normal), transform var(--transition-normal), border-color var(--transition-normal), background-color var(--transition-fast);
}

.card-hover {
  cursor: pointer;
}

.card-hover:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: rgba(59, 130, 246, 0.45);
}

.card-header {
  margin-bottom: var(--space-3);
}

.card-title {
  font-size: var(--fs-lg);
  margin-bottom: var(--space-1);
}

.card-meta {
  font-size: var(--fs-xs);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--gray-500);
}

/* Tagline chips for event categories */
.chip {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.25rem 0.75rem;
  border-radius: var(--radius-pill);
  font-size: var(--fs-xs);
  font-weight: 500;
  background-color: var(--color-accent-soft);
  color: var(--color-accent);
}

.chip-blue {
  background-color: var(--color-primary-soft);
  color: var(--color-primary-strong);
}

.chip-muted {
  background-color: var(--gray-100);
  color: var(--gray-700);
}

/* Simple pill tabs for filtering experiences/gallery */
.tabs {
  display: inline-flex;
  padding: 0.25rem;
  border-radius: var(--radius-pill);
  background: rgba(148, 163, 184, 0.14);
}

.tab {
  border-radius: var(--radius-pill);
  padding: 0.35rem 0.9rem;
  font-size: var(--fs-xs);
  font-weight: 500;
  color: var(--gray-600);
  transition: background-color var(--transition-normal), color var(--transition-normal);
}

.tab.is-active {
  background: #ffffff;
  color: var(--color-primary-strong);
}

/* Simple badge for SEO phrases like "mobilní kasina zážitky" without gambling connotation */
.keyword-highlight {
  padding: 0.15rem 0.5rem;
  border-radius: var(--radius-pill);
  background: rgba(34, 197, 94, 0.12);
  color: var(--color-success);
  font-size: var(--fs-xs);
  font-weight: 500;
}

/* Footer */
.site-footer {
  border-top: 1px solid rgba(148, 163, 184, 0.25);
  padding-block: var(--space-8);
  background: linear-gradient(180deg, rgba(15, 23, 42, 0.03), rgba(15, 23, 42, 0.06));
}

.footer-note {
  font-size: var(--fs-xs);
  color: var(--gray-500);
}

/* ===================================================================
   Animations & Motion helpers
   =================================================================== */
.fade-in-up {
  opacity: 0;
  transform: translateY(16px);
  animation: fade-in-up 600ms var(--transition-normal) forwards;
}

@keyframes fade-in-up {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.pulse-soft {
  animation: pulse-soft 1800ms ease-in-out infinite;
}

@keyframes pulse-soft {
  0%, 100% {
    transform: scale(1);
    box-shadow: 0 0 0 0 rgba(37, 99, 235, 0.3);
  }
  50% {
    transform: scale(1.02);
    box-shadow: 0 0 0 16px rgba(37, 99, 235, 0);
  }
}

@media (prefers-reduced-motion: reduce) {
  .fade-in-up,
  .pulse-soft {
    animation: none;
    opacity: 1;
    transform: none;
  }
}
.hero-title{
  color: #ffffff;
}