/* ========================================================================== 
   Variables
   ========================================================================== */
:root {
  /* Colors - core */
  --color-bg: #ffffff;
  --color-surface: rgba(255, 255, 255, 0.85);
  --color-surface-elevated: rgba(255, 255, 255, 0.9);
  --color-text: #111827; /* slate-900 */
  --color-text-soft: #4b5563; /* gray-700 */
  --color-border-subtle: rgba(148, 163, 184, 0.4);

  /* Accent Pastels */
  --color-primary: #60a5fa; /* light blue */
  --color-primary-soft: rgba(96, 165, 250, 0.2);
  --color-primary-strong: #2563eb;

  --color-mint: #a5f3fc;
  --color-turquoise: #22d3ee;
  --color-lavender: #c4b5fd;
  --color-blush: #f9a8d4;

  --color-success: #22c55e;
  --color-warning: #facc15;
  --color-danger: #ef4444;

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

  /* Gradients (soft rainbow / casino-inspired but playful) */
  --gradient-rainbow-soft: linear-gradient(135deg,
    rgba(96, 165, 250, 0.9) 0%,
    rgba(56, 189, 248, 0.8) 18%,
    rgba(45, 212, 191, 0.8) 36%,
    rgba(244, 114, 182, 0.85) 63%,
    rgba(196, 181, 253, 0.9) 100%
  );

  --gradient-hero: radial-gradient(circle at top left,
      rgba(96, 165, 250, 0.4) 0,
      transparent 55%),
    radial-gradient(circle at top right,
      rgba(244, 114, 182, 0.35) 0,
      transparent 55%),
    radial-gradient(circle at bottom left,
      rgba(45, 212, 191, 0.35) 0,
      transparent 55%),
    #ffffff;

  --gradient-card: linear-gradient(135deg,
    rgba(255, 255, 255, 0.9),
    rgba(255, 255, 255, 0.75));

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

  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 1.875rem;
  --font-size-4xl: 2.25rem;
  --font-size-5xl: 3rem;

  --line-height-tight: 1.1;
  --line-height-snug: 1.25;
  --line-height-normal: 1.5;
  --line-height-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: 4px;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 18px;
  --radius-xl: 24px;
  --radius-pill: 999px;

  /* Shadows (soft, for glassmorphism) */
  --shadow-soft: 0 8px 22px rgba(15, 23, 42, 0.08);
  --shadow-medium: 0 18px 45px rgba(15, 23, 42, 0.12);
  --shadow-subtle-inner: inset 0 0 0 1px rgba(255, 255, 255, 0.4);

  /* Backdrop blur for glassmorphism */
  --blur-soft: 12px;
  --blur-strong: 20px;

  /* Transitions */
  --transition-fast: 150ms ease-out;
  --transition-normal: 220ms ease-out;
  --transition-slow: 320ms ease;

  /* Layout */
  --layout-max-width: 1120px;
  --layout-max-width-wide: 1280px;
  --layout-gutter: var(--space-4);

  /* Z-index tokens */
  --z-base: 1;
  --z-nav: 20;
  --z-overlay: 40;
  --z-modal: 50;
}

@media (min-width: 768px) {
  :root {
    --layout-gutter: var(--space-6);
  }
}

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

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

body {
  margin: 0;
}

h1,
h2,
h3,
h4,
h5,
h6,
p,
figure,
blockquote,
dl,
dd {
  margin: 0;
}

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

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

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

img,
video {
  height: auto;
}

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

button {
  border: none;
  padding: 0;
  background: none;
  cursor: pointer;
}

table {
  border-collapse: collapse;
  border-spacing: 0;
}

/* Remove default focus outline; we reintroduce for :focus-visible */
:focus {
  outline: none;
}

/* ========================================================================== 
   Base Styles
   ========================================================================== */
body {
  font-family: var(--font-sans);
  font-size: var(--font-size-base);
  line-height: var(--line-height-normal);
  background: var(--gradient-hero);
  color: var(--color-text);
  -webkit-font-smoothing: antialiased;
}

main {
  min-height: 60vh;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: var(--line-height-tight);
  color: var(--color-gray-900);
}

h1 {
  font-size: clamp(2.25rem, 6vw, 3.25rem);
  letter-spacing: -0.04em;
  margin-bottom: var(--space-4);
}

h2 {
  font-size: clamp(1.75rem, 4vw, 2.25rem);
  letter-spacing: -0.03em;
  margin-bottom: var(--space-3);
}

h3 {
  font-size: clamp(1.25rem, 3vw, 1.5rem);
  letter-spacing: -0.02em;
  margin-bottom: var(--space-2);
}

p {
  font-size: var(--font-size-base);
  line-height: var(--line-height-relaxed);
  color: var(--color-text-soft);
  margin-bottom: var(--space-3);
}

p.lead {
  font-size: var(--font-size-lg);
  line-height: var(--line-height-relaxed);
  color: var(--color-gray-700);
}

strong {
  font-weight: 600;
}

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

code,
pre {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas,
    "Liberation Mono", "Courier New", monospace;
}

a {
  color: var(--color-primary-strong);
  transition: color var(--transition-fast),
    opacity var(--transition-fast),
    text-decoration-color var(--transition-fast);
}

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

a:focus-visible {
  outline: 2px solid transparent;
  box-shadow: 0 0 0 2px rgba(255, 255, 255, 0.8),
    0 0 0 4px rgba(96, 165, 250, 0.9);
  border-radius: var(--radius-sm);
}

hr {
  border: none;
  border-top: 1px solid var(--color-gray-200);
  margin: var(--space-6) 0;
}

/* ========================================================================== 
   Accessibility & Motion
   ========================================================================== */
:focus-visible {
  outline: 2px solid transparent;
  box-shadow: 0 0 0 2px rgba(255, 255, 255, 0.9),
    0 0 0 4px rgba(96, 165, 250, 0.9);
  border-radius: var(--radius-sm);
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

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

/* ========================================================================== 
   Layout Utilities
   ========================================================================== */
.container {
  width: 100%;
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--layout-gutter);
  padding-right: var(--layout-gutter);
  max-width: var(--layout-max-width);
}

.container-wide {
  width: 100%;
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--layout-gutter);
  padding-right: var(--layout-gutter);
  max-width: var(--layout-max-width-wide);
}

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

.section--alt {
  background: rgba(255, 255, 255, 0.7);
  backdrop-filter: blur(var(--blur-soft));
}

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

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

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

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

.flex-row {
  flex-direction: row;
}

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

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

.items-start {
  align-items: flex-start;
}

.items-end {
  align-items: flex-end;
}

.justify-center {
  justify-content: center;
}

.justify-between {
  justify-content: space-between;
}

.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;
}

.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-4);
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--space-4);
}

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

/* Spacing utilities (limited, common) */
.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); }

.py-4 { padding-top: var(--space-4); padding-bottom: var(--space-4); }
.py-6 { padding-top: var(--space-6); padding-bottom: var(--space-6); }
.py-8 { padding-top: var(--space-8); padding-bottom: var(--space-8); }

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

/* Width helpers */
.w-full { width: 100%; }

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

/* Buttons */
.button,
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  padding: 0.65rem 1.3rem;
  border-radius: var(--radius-pill);
  font-size: var(--font-size-sm);
  font-weight: 600;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  border: 1px solid transparent;
  position: relative;
  overflow: hidden;
  color: #0b1120;
  background-image: var(--gradient-rainbow-soft);
  box-shadow: var(--shadow-soft);
  backdrop-filter: blur(var(--blur-soft));
  transition:
    transform var(--transition-fast),
    box-shadow var(--transition-fast),
    filter var(--transition-fast),
    opacity var(--transition-fast),
    background var(--transition-fast);
}

.button::after,
.btn::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(120deg,
    rgba(255, 255, 255, 0.35),
    rgba(255, 255, 255, 0));
  opacity: 0;
  transition: opacity var(--transition-fast);
}

.button > span,
.btn > span {
  position: relative;
  z-index: 1;
}

.button:hover,
.btn:hover {
  transform: translateY(-1px) scale(1.01);
  box-shadow: var(--shadow-medium);
}

.button:hover::after,
.btn:hover::after {
  opacity: 1;
}

.button:active,
.btn:active {
  transform: translateY(0) scale(0.99);
  box-shadow: var(--shadow-soft);
}

.button--ghost,
.btn--ghost {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(148, 163, 184, 0.5);
  color: var(--color-gray-900);
}

.button--primary,
.btn--primary {
  background: var(--color-primary-strong);
  color: #ffffff;
  box-shadow: 0 14px 35px rgba(37, 99, 235, 0.4);
}

.button--outline,
.btn--outline {
  background: transparent;
  border-color: rgba(148, 163, 184, 0.7);
  color: var(--color-gray-900);
}

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

.button:focus-visible,
.btn:focus-visible {
  outline: 2px solid transparent;
  box-shadow: 0 0 0 2px rgba(255, 255, 255, 0.9),
    0 0 0 4px rgba(96, 165, 250, 0.9);
}

/* Sticky CTA (e.g. "Nezávazná poptávka") */
.sticky-cta {
  position: fixed;
  right: var(--space-4);
  bottom: var(--space-4);
  z-index: var(--z-overlay);
}

@media (min-width: 768px) {
  .sticky-cta {
    right: var(--space-6);
    bottom: var(--space-6);
  }
}

/* Form controls */
.input,
select,
textarea,
input[type="text"],
input[type="email"],
input[type="tel"],
input[type="url"],
input[type="search"],
input[type="number"],
input[type="password"] {
  width: 100%;
  padding: 0.65rem 0.9rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border-subtle);
  background: rgba(255, 255, 255, 0.9);
  color: var(--color-text);
  font-size: var(--font-size-sm);
  line-height: 1.4;
  box-shadow: 0 1px 0 rgba(15, 23, 42, 0.02);
  transition:
    border-color var(--transition-fast),
    box-shadow var(--transition-fast),
    background-color var(--transition-fast),
    transform var(--transition-fast);
}

.input::placeholder,
textarea::placeholder,
input::placeholder {
  color: var(--color-gray-400);
}

.input:focus-visible,
textarea:focus-visible,
select:focus-visible,
input[type="text"]:focus-visible,
input[type="email"]:focus-visible,
input[type="tel"]:focus-visible,
input[type="url"]:focus-visible,
input[type="search"]:focus-visible,
input[type="number"]:focus-visible,
input[type="password"]:focus-visible {
  border-color: rgba(96, 165, 250, 0.85);
  background: rgba(255, 255, 255, 0.98);
  box-shadow: 0 0 0 1px rgba(96, 165, 250, 0.5),
    0 12px 30px rgba(15, 23, 42, 0.08);
}

textarea {
  min-height: 140px;
  resize: vertical;
}

input[disabled],
textarea[disabled],
select[disabled] {
  background: var(--color-gray-100);
  cursor: not-allowed;
}

label {
  display: inline-block;
  margin-bottom: 0.35rem;
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--color-gray-700);
}

.form-row {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  margin-bottom: var(--space-3);
}

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

/* Card (Glassmorphism) */
.card {
  position: relative;
  border-radius: var(--radius-xl);
  padding: var(--space-5);
  background: var(--gradient-card);
  box-shadow: var(--shadow-soft);
  backdrop-filter: blur(var(--blur-soft));
  border: 1px solid rgba(255, 255, 255, 0.6);
  overflow: hidden;
}

.card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at top left,
      rgba(96, 165, 250, 0.18) 0,
      transparent 55%),
    radial-gradient(circle at bottom right,
      rgba(244, 114, 182, 0.18) 0,
      transparent 55%);
  opacity: 0.7;
  pointer-events: none;
}

.card > * {
  position: relative;
  z-index: 1;
}

.card--quiet::before {
  display: none;
}

.card--compact {
  padding: var(--space-4);
}

/* Hero full screen helper (for slider wrapper) */
.hero-fullscreen {
  min-height: 100vh;
  display: flex;
  align-items: center;
}

/* Tag / pill (e.g., slide labels like "Firemní eventy") */
.tag {
  display: inline-flex;
  align-items: center;
  padding: 0.25rem 0.7rem;
  border-radius: var(--radius-pill);
  font-size: var(--font-size-xs);
  font-weight: 500;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--color-gray-800);
  background: rgba(255, 255, 255, 0.88);
  border: 1px solid rgba(148, 163, 184, 0.4);
  backdrop-filter: blur(var(--blur-soft));
}

.tag--rainbow {
  background-image: var(--gradient-rainbow-soft);
  color: #0b1120;
  border-color: transparent;
}

/* Badge-like stat pill (for event statistics) */
.stat-pill {
  display: inline-flex;
  align-items: baseline;
  gap: 0.25rem;
  padding: 0.35rem 0.8rem;
  border-radius: var(--radius-pill);
  font-size: var(--font-size-xs);
  background: rgba(15, 23, 42, 0.72);
  color: #f9fafb;
  box-shadow: 0 12px 30px rgba(15, 23, 42, 0.3);
}

.stat-pill strong {
  font-size: var(--font-size-sm);
  color: #ffffff;
}

/* Simple navigation baseline (header/footer) */
.nav {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

.nav a {
  position: relative;
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--color-gray-700);
  padding: 0.15rem 0;
}

.nav a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -0.1rem;
  width: 0;
  height: 2px;
  border-radius: 999px;
  background: var(--gradient-rainbow-soft);
  transition: width var(--transition-normal);
}

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

.nav a[aria-current="page"] {
  color: var(--color-gray-900);
}

/* Footer baseline */
.footer {
  padding-top: var(--space-10);
  padding-bottom: var(--space-6);
  background: rgba(15, 23, 42, 0.94);
  color: #e5e7eb;
}

.footer a {
  color: #e5e7eb;
  font-size: var(--font-size-sm);
}

.footer a:hover {
  color: #ffffff;
}

.footer-disclaimer {
  margin-top: var(--space-6);
  font-size: var(--font-size-xs);
  line-height: var(--line-height-relaxed);
  color: #9ca3af;
}

/* Masonry-like gallery helper (for Instagram / masonry gallery) */
.gallery-masonry {
  column-count: 1;
  column-gap: var(--space-4);
}

.gallery-masonry-item {
  break-inside: avoid;
  margin-bottom: var(--space-4);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

@media (min-width: 640px) {
  .gallery-masonry {
    column-count: 2;
  }
}

@media (min-width: 1024px) {
  .gallery-masonry {
    column-count: 3;
  }
}

/* Carousel baseline (for hero slider / reference carousel) */
.carousel {
  position: relative;
  overflow: hidden;
}

.carousel-track {
  display: flex;
  transition: transform var(--transition-slow);
}

.carousel-slide {
  min-width: 100%;
}

.carousel-dots {
  display: flex;
  justify-content: center;
  gap: 0.4rem;
  margin-top: var(--space-4);
}

.carousel-dot {
  width: 8px;
  height: 8px;
  border-radius: 999px;
  border: 1px solid rgba(148, 163, 184, 0.8);
  background: rgba(255, 255, 255, 0.6);
  transition: all var(--transition-fast);
}

.carousel-dot.is-active {
  width: 22px;
  background-image: var(--gradient-rainbow-soft);
  border-color: transparent;
}

/* Timeline helper (for "organizace akce" timeline) */
.timeline {
  position: relative;
  padding-left: 1.5rem;
}

.timeline::before {
  content: "";
  position: absolute;
  left: 0.5rem;
  top: 0;
  bottom: 0;
  width: 2px;
  border-radius: 999px;
  background: linear-gradient(to bottom,
    rgba(96, 165, 250, 0.7),
    rgba(244, 114, 182, 0.7));
}

.timeline-step {
  position: relative;
  margin-bottom: var(--space-5);
}

.timeline-step::before {
  content: "";
  position: absolute;
  left: -1rem;
  top: 0.35rem;
  width: 12px;
  height: 12px;
  border-radius: 999px;
  background: #ffffff;
  border: 2px solid rgba(96, 165, 250, 0.9);
  box-shadow: 0 0 0 3px rgba(96, 165, 250, 0.25);
}

.timeline-step-title {
  font-size: var(--font-size-sm);
  font-weight: 600;
  margin-bottom: 0.2rem;
}

.timeline-step-text {
  font-size: var(--font-size-sm);
  color: var(--color-text-soft);
}

/* Simple chip list (for event types: Firemní večírky, VIP eventy, etc.) */
.chip-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.chip {
  padding: 0.25rem 0.7rem;
  border-radius: var(--radius-pill);
  font-size: var(--font-size-xs);
  background: rgba(255, 255, 255, 0.85);
  border: 1px solid rgba(148, 163, 184, 0.4);
  color: var(--color-gray-700);
}

/* Badge color helpers for chips / stats */
.chip--mint {
  background: rgba(167, 243, 208, 0.4);
  border-color: rgba(34, 197, 94, 0.4);
}

.chip--lavender {
  background: rgba(196, 181, 253, 0.4);
  border-color: rgba(129, 140, 248, 0.4);
}

.chip--blush {
  background: rgba(251, 207, 232, 0.5);
  border-color: rgba(244, 114, 182, 0.5);
}

/* Simple badge for SEO-keyword sections (optional) */
.badge {
  display: inline-block;
  padding: 0.2rem 0.6rem;
  border-radius: var(--radius-pill);
  font-size: var(--font-size-xs);
  background: rgba(15, 23, 42, 0.06);
  color: var(--color-gray-700);
}

/* Header glass strip helper (for sticky nav) */
.header-glass {
  position: sticky;
  top: 0;
  z-index: var(--z-nav);
  backdrop-filter: blur(var(--blur-strong));
  background: linear-gradient(to bottom,
    rgba(255, 255, 255, 0.92),
    rgba(255, 255, 255, 0.82));
  border-bottom: 1px solid rgba(148, 163, 184, 0.35);
}

/* Utility for subtle rainbow border (e.g., highlight important blocks) */
.rainbow-border {
  position: relative;
}

.rainbow-border::before {
  content: "";
  position: absolute;
  inset: -1px;
  border-radius: inherit;
  padding: 1px;
  background: var(--gradient-rainbow-soft);
  -webkit-mask:
    linear-gradient(#000 0 0) content-box,
    linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
}

/* End of base.css */