/* ==========================================================================
   Variables
   ========================================================================== */
:root {
  /* Colors */
  --color-bg: #05060a; /* deep night */
  --color-bg-elevated: #0b0d14;
  --color-bg-soft: #111422;
  --color-surface: #141826;
  --color-surface-soft: #1b2032;

  --color-text: #f7f7fb;
  --color-text-muted: #a7adc4;
  --color-text-soft: #c5c9dd;

  --color-primary: #f4b42a; /* warm gold */
  --color-primary-soft: rgba(244, 180, 42, 0.14);
  --color-primary-strong: #ffcf4d;

  --color-accent-navy: #111b3c;
  --color-accent-burgundy: #5a1230;

  --color-success: #3ac78b;
  --color-warning: #ffb54b;
  --color-danger: #ff4b6a;

  --color-border-subtle: rgba(255, 255, 255, 0.07);
  --color-border-strong: rgba(255, 255, 255, 0.16);

  /* Neutral grays (for occasional light sections) */
  --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, "Segoe UI", Roboto,
    "Helvetica Neue", Arial, sans-serif;
  --font-display: "Poppins", system-ui, -apple-system, BlinkMacSystemFont,
    "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;

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

  --line-height-tight: 1.15;
  --line-height-snug: 1.3;
  --line-height-normal: 1.6;
  --line-height-relaxed: 1.8;

  /* 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: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 999px;

  /* Shadows (nightlife / glow-inspired) */
  --shadow-soft: 0 8px 24px rgba(0, 0, 0, 0.4);
  --shadow-medium: 0 16px 40px rgba(0, 0, 0, 0.55);
  --shadow-strong: 0 24px 70px rgba(0, 0, 0, 0.75);
  --shadow-gold-glow: 0 0 0 1px rgba(244, 180, 42, 0.4),
    0 0 18px rgba(244, 180, 42, 0.4);

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

/* Larger display typography on wider screens */
@media (min-width: 768px) {
  :root {
    --font-size-3xl: 2rem;    /* 32px */
    --font-size-4xl: 2.5rem;  /* 40px */
    --font-size-5xl: 3.25rem; /* 52px */
  }
}

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

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

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

ul,
ol {
  padding: 0;
}

ul[class],
ol[class] {
  list-style: none;
}

body {
  min-height: 100vh;
}

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

img {
  height: auto;
}

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

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

:focus {
  outline: none;
}

/* Respect users who prefer reduced motion */
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* ==========================================================================
   Base Styles
   ========================================================================== */
body {
  font-family: var(--font-sans);
  font-size: var(--font-size-base);
  line-height: var(--line-height-normal);
  background: radial-gradient(circle at top, #15192a 0, #05060a 52%, #02030a 100%);
  color: var(--color-text);
  -webkit-font-smoothing: antialiased;
}

main {
  display: block;
}

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

h1 {
  font-size: var(--font-size-5xl);
  letter-spacing: 0.02em;
}

h2 {
  font-size: var(--font-size-4xl);
}

h3 {
  font-size: var(--font-size-3xl);
}

h4 {
  font-size: var(--font-size-2xl);
}

h5 {
  font-size: var(--font-size-xl);
}

h6 {
  font-size: var(--font-size-lg);
}

h1,
h2,
h3 {
  margin-bottom: var(--space-4);
}

p + p {
  margin-top: var(--space-3);
}

p {
  color: var(--color-text-soft);
}

strong {
  font-weight: 600;
}

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--transition-base),
    opacity var(--transition-base),
    text-shadow var(--transition-base);
}

a:hover {
  color: var(--color-primary-strong);
  text-shadow: 0 0 10px rgba(244, 180, 42, 0.3);
}

a:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 3px;
}

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

hr {
  border: 0;
  border-top: 1px solid var(--color-border-subtle);
  margin: var(--space-8) 0;
}

/* ==========================================================================
   Utilities
   ========================================================================== */

/* Layout */
.container {
  width: 100%;
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--space-4);
  padding-right: var(--space-4);
  max-width: 1200px;
}

@media (min-width: 1280px) {
  .container {
    max-width: 1280px;
    padding-left: var(--space-6);
    padding-right: var(--space-6);
  }
}

.section {
  padding-top: var(--space-16);
  padding-bottom: var(--space-16);
}

.section--tight {
  padding-top: var(--space-12);
  padding-bottom: var(--space-12);
}

.section--light {
  background: linear-gradient(145deg, #0c0f19, #05060a 40%, #0c0712 100%);
}

.section--elevated {
  background-color: var(--color-bg-elevated);
}

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

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

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

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

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

.gap-8 {
  gap: var(--space-8);
}

/* Grid helpers */
.grid {
  display: grid;
}

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

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

@media (min-width: 768px) {
  .grid-2 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .grid-3 {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

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

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

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

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

/* Spacing utilities (limited set for base) */
.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-8 {
  padding-top: var(--space-8);
}

.pb-8 {
  padding-bottom: var(--space-8);
}

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

/* Overlay gradient utility for nightlife imagery */
.overlay-gradient-dark {
  position: relative;
}

.overlay-gradient-dark::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(
    135deg,
    rgba(5, 6, 10, 0.9) 0%,
    rgba(5, 6, 10, 0.65) 40%,
    rgba(5, 6, 10, 0.8) 100%
  );
}

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

/* Buttons */
.btn {
  --btn-bg: var(--color-primary);
  --btn-color: #050308;
  --btn-border: transparent;

  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.8rem 1.7rem;
  border-radius: var(--radius-full);
  border: 1px solid var(--btn-border);
  background: linear-gradient(120deg, var(--btn-bg), var(--color-primary-strong));
  color: var(--btn-color);
  font-weight: 600;
  font-size: var(--font-size-sm);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  text-decoration: none;
  cursor: pointer;
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.6);
  transition:
    transform var(--transition-fast),
    box-shadow var(--transition-fast),
    background var(--transition-base),
    filter var(--transition-fast),
    opacity var(--transition-fast);
}

.btn:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow-gold-glow);
  filter: brightness(1.05);
}

.btn:active {
  transform: translateY(0);
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.7);
}

.btn:disabled,
.btn[aria-disabled="true"] {
  opacity: 0.55;
  cursor: not-allowed;
  box-shadow: none;
}

.btn--outline {
  --btn-bg: transparent;
  --btn-color: var(--color-text);
  --btn-border: rgba(244, 180, 42, 0.7);

  background: radial-gradient(circle at top left, rgba(244, 180, 42, 0.15), transparent 55%),
    linear-gradient(120deg, rgba(10, 10, 20, 0.96), rgba(12, 10, 24, 0.98));
}

.btn--outline:hover {
  background: radial-gradient(circle at top, rgba(244, 180, 42, 0.24), transparent 60%),
    linear-gradient(130deg, rgba(10, 10, 20, 0.98), rgba(18, 15, 32, 0.98));
}

.btn--ghost {
  --btn-bg: transparent;
  --btn-color: var(--color-text);
  --btn-border: transparent;

  background: rgba(255, 255, 255, 0.06);
  box-shadow: none;
}

.btn--ghost:hover {
  background: rgba(255, 255, 255, 0.12);
}

.btn--sm {
  padding: 0.6rem 1.3rem;
  font-size: var(--font-size-xs);
}

.btn--lg {
  padding: 1rem 2.2rem;
  font-size: var(--font-size-base);
}

.btn:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 3px;
}

/* Inputs / Form controls */
.input,
textarea,
select {
  width: 100%;
  padding: 0.8rem 0.95rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border-subtle);
  background-color: rgba(11, 13, 20, 0.96);
  color: var(--color-text);
  font-size: var(--font-size-sm);
  line-height: 1.4;
  transition:
    border-color var(--transition-base),
    box-shadow var(--transition-base),
    background-color var(--transition-base),
    transform var(--transition-fast);
}

.input::placeholder,
textarea::placeholder {
  color: var(--color-text-muted);
}

.input:focus,
textarea:focus,
select:focus {
  border-color: rgba(244, 180, 42, 0.85);
  box-shadow: 0 0 0 1px rgba(244, 180, 42, 0.5), 0 18px 30px rgba(0, 0, 0, 0.8);
  background-color: rgba(12, 14, 22, 1);
  transform: translateY(-1px);
}

.input[aria-invalid="true"],
textarea[aria-invalid="true"] {
  border-color: rgba(255, 75, 106, 0.9);
}

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

label {
  display: block;
  margin-bottom: 0.35rem;
  font-size: var(--font-size-sm);
  color: var(--color-text-soft);
}

.form-field {
  margin-bottom: var(--space-4);
}

.form-help {
  margin-top: 0.25rem;
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
}

/* Cards – for event formats, testimonials, etc. */
.card {
  position: relative;
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  background:
    radial-gradient(circle at top left, rgba(244, 180, 42, 0.08), transparent 55%),
    linear-gradient(145deg, rgba(14, 16, 30, 0.98), rgba(9, 9, 20, 0.98));
  border: 1px solid rgba(255, 255, 255, 0.06);
  box-shadow: var(--shadow-soft);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  transition:
    transform var(--transition-base),
    box-shadow var(--transition-base),
    border-color var(--transition-base),
    background var(--transition-base);
}

.card:hover {
  transform: translateY(-4px);
  border-color: rgba(244, 180, 42, 0.45);
  box-shadow: var(--shadow-medium);
}

.card--soft {
  padding: var(--space-4);
  border-radius: var(--radius-md);
}

.card__header {
  margin-bottom: var(--space-4);
}

.card__title {
  font-size: var(--font-size-xl);
  margin-bottom: var(--space-2);
}

.card__subtitle {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
}

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

/* Focus-visible global style for interactive components */
button:focus-visible,
[role="button"]:focus-visible,
input:focus-visible,
textarea:focus-visible,
select:focus-visible,
.summary:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 3px;
}

/* Badges – useful for "offline only", "bez hazardu" messaging */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 0.25rem 0.65rem;
  border-radius: var(--radius-full);
  border: 1px solid rgba(255, 255, 255, 0.16);
  font-size: var(--font-size-xs);
  text-transform: uppercase;
  letter-spacing: 0.09em;
  color: var(--color-text-muted);
  background: rgba(5, 6, 10, 0.9);
}

.badge--accent {
  border-color: rgba(244, 180, 42, 0.7);
  color: var(--color-primary-strong);
  background: rgba(15, 10, 0, 0.9);
}

/* Hero-specific helper: subtle glow ring for key blocks/CTAs */
.glow-ring {
  position: relative;
}

.glow-ring::before {
  content: "";
  position: absolute;
  inset: -1px;
  border-radius: inherit;
  background: conic-gradient(
    from 180deg,
    rgba(244, 180, 42, 0.9),
    rgba(90, 18, 48, 0.9),
    rgba(17, 27, 60, 0.9),
    rgba(244, 180, 42, 0.9)
  );
  opacity: 0;
  transition: opacity var(--transition-slow);
  z-index: -1;
}

.glow-ring:hover::before {
  opacity: 0.45;
}

/* ==========================================================================
   Accessibility helpers
   ========================================================================== */

.skip-link {
  position: absolute;
  top: 0.5rem;
  left: 0.5rem;
  padding: 0.6rem 1rem;
  background-color: #000;
  color: #fff;
  border-radius: var(--radius-sm);
  transform: translateY(-150%);
  transition: transform var(--transition-base);
  z-index: 1000;
}

.skip-link:focus {
  transform: translateY(0);
}