/* ========================================================================== 
   Variables
   ========================================================================== */
:root {
  /* Colors */
  --color-bg: #ffffff;
  --color-bg-alt: #f7f9fc;
  --color-bg-soft: #f0f4ff;
  --color-text: #111827;
  --color-text-muted: #6b7280;
  --color-primary: #00c4cc; /* vibrant turquoise */
  --color-primary-soft: rgba(0, 196, 204, 0.12);
  --color-primary-dark: #00929b;
  --color-accent-blue: #2563eb;
  --color-accent-orange: #ff8a3d;
  --color-accent-yellow: #ffd44d;
  --color-success: #16a34a;
  --color-warning: #eab308;
  --color-danger: #dc2626;

  --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: "Inter", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-display: "Poppins", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;

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

  --leading-tight: 1.2;
  --leading-snug: 1.35;
  --leading-normal: 1.5;
  --leading-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-7: 1.75rem;  /* 28px */
  --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 (youthful / soft-premium) */
  --shadow-xs: 0 1px 3px rgba(15, 23, 42, 0.08);
  --shadow-sm: 0 4px 12px rgba(15, 23, 42, 0.10);
  --shadow-md: 0 10px 30px rgba(15, 23, 42, 0.14);
  --shadow-lg: 0 18px 45px rgba(15, 23, 42, 0.18);

  /* Transitions */
  --transition-fast: 120ms ease-out;
  --transition-normal: 220ms cubic-bezier(0.22, 0.61, 0.36, 1);
  --transition-slow: 380ms cubic-bezier(0.22, 0.61, 0.36, 1);
}

/* Motion reduction */
@media (prefers-reduced-motion: reduce) {
  :root {
    --transition-fast: 0.01ms linear;
    --transition-normal: 0.01ms linear;
    --transition-slow: 0.01ms linear;
  }
}

/* ========================================================================== 
   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;
  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;
}

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

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

textarea {
  resize: vertical;
}

[hidden] {
  display: none !important;
}

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

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

h1 {
  font-size: clamp(2.25rem, 5vw, 3.25rem);
  letter-spacing: -0.03em;
}

h2 {
  font-size: clamp(1.875rem, 3.6vw, 2.5rem);
  letter-spacing: -0.02em;
}

h3 {
  font-size: clamp(1.5rem, 2.6vw, 2rem);
  letter-spacing: -0.01em;
}

h4 {
  font-size: 1.25rem;
}

h5 {
  font-size: 1.125rem;
}

h6 {
  font-size: 1rem;
}

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

strong {
  font-weight: 600;
}

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

/* Links - youthful accent underline on hover */
a {
  position: relative;
  cursor: pointer;
  transition: color var(--transition-fast);
}

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

a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -0.15em;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent-blue));
  border-radius: 999px;
  transition: width var(--transition-normal);
}

a:hover::after {
  width: 100%;
}

/* Focus-visible for all interactive elements */
:where(a, button, input, textarea, select, summary, [tabindex]) {
  outline: none;
}

:where(a, button, input, textarea, select, summary, [tabindex]):focus-visible {
  outline: 2px solid var(--color-accent-yellow);
  outline-offset: 3px;
  border-radius: 999px;
}

/* ========================================================================== 
   Layout & Utilities
   ========================================================================== */

/* Container - max-width tuned for lifestyle photography */
.container {
  width: 100%;
  margin-inline: auto;
  padding-inline: var(--space-4);
  max-width: 1120px;
}

@media (min-width: 1024px) {
  .container {
    max-width: 1200px;
    padding-inline: var(--space-6);
  }
}

/* Section spacing */
.section {
  padding-block: var(--space-12);
}

@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-col {
  display: flex;
  flex-direction: column;
}

.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-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: minmax(0, 1fr);
    gap: var(--space-4);
  }
}

/* Spacing utilities (limited, base only) */
.mt-0 { margin-top: 0 !important; }
.mt-4 { margin-top: var(--space-4) !important; }
.mt-6 { margin-top: var(--space-6) !important; }
.mb-0 { margin-bottom: 0 !important; }
.mb-4 { margin-bottom: var(--space-4) !important; }
.mb-6 { margin-bottom: var(--space-6) !important; }

.py-6 { padding-block: var(--space-6) !important; }
.py-8 { padding-block: var(--space-8) !important; }
.px-4 { padding-inline: var(--space-4) !important; }

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

/* Screen reader only */
.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;
}

/* Hero-specific helpers (for rotating background slider) */
.hero {
  position: relative;
  width: 100%;
  min-height: 80vh;
  color: #ffffff;
  display: flex;
  align-items: center;
}

.hero__bg {
  position: absolute;
  inset: 0;
  overflow: hidden;
  z-index: -2;
}

.hero__bg-slide {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  background-size: cover;
  background-position: center;
  opacity: 0;
  transition: opacity var(--transition-slow);
}

.hero__bg-slide.is-active {
  opacity: 1;
}

.hero__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(120deg, rgba(15, 23, 42, 0.72), rgba(15, 23, 42, 0.30));
  mix-blend-mode: multiply;
  z-index: -1;
}

.hero__content {
  position: relative;
  max-width: 640px;
}

.hero__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.25rem 0.75rem;
  border-radius: var(--radius-full);
  background: rgba(15, 23, 42, 0.64);
  color: rgba(249, 250, 251, 0.9);
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: 0.12em;
}

.hero__headline {
  margin-top: var(--space-3);
  margin-bottom: var(--space-3);
}

.hero__subheadline {
  font-size: var(--text-lg);
  line-height: var(--leading-relaxed);
  color: #000;
  margin-bottom: var(--space-6);
}

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

@media (max-width: 639.98px) {
  .hero {
    align-items: flex-end;
    padding-block: var(--space-12);
  }

  .hero__content {
    max-width: none;
  }
}

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

/* Buttons - primary/secondary for CTAs (Rezervovat Stůl / Objevit Zážitek) */
.btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  padding: 0.8rem 1.6rem;
  border-radius: var(--radius-full);
  border: 0;
  font-family: var(--font-display);
  font-size: var(--text-sm);
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  cursor: pointer;
  white-space: nowrap;
  transition:
    background-color var(--transition-normal),
    color var(--transition-normal),
    box-shadow var(--transition-normal),
    transform var(--transition-fast);
}

.btn--primary {
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent-blue));
  color: #ffffff;
  box-shadow: var(--shadow-md);
}

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

.btn--secondary {
  background-color: rgba(15, 23, 42, 0.72);
  color: #e5e7eb;
  border: 1px solid rgba(148, 163, 184, 0.6);
}

.btn--secondary:hover {
  background-color: rgba(15, 23, 42, 0.86);
}

.btn--ghost {
  background-color: transparent;
  color: var(--color-text);
  border: 1px solid var(--gray-200);
}

.btn--ghost:hover {
  border-color: var(--color-primary);
  color: var(--color-primary-dark);
  box-shadow: var(--shadow-xs);
}

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

/* Inputs & forms - reservation / contact */
.input,
.textarea,
.select {
  width: 100%;
  padding: 0.75rem 0.9rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--gray-200);
  background-color: #ffffff;
  color: var(--color-text);
  font-size: var(--text-sm);
  line-height: 1.5;
  transition:
    border-color var(--transition-fast),
    box-shadow var(--transition-fast),
    background-color var(--transition-fast);
}

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

.input:focus-visible,
.textarea:focus-visible,
.select:focus-visible {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 1px var(--color-primary-soft), 0 10px 30px rgba(15, 23, 42, 0.12);
}

.input--error,
.textarea--error,
.select--error {
  border-color: var(--color-danger);
}

.input--error:focus-visible,
.textarea--error:focus-visible,
.select--error:focus-visible {
  box-shadow: 0 0 0 1px rgba(220, 38, 38, 0.18);
}

.label {
  display: block;
  margin-bottom: 0.35rem;
  font-size: var(--text-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--gray-600);
}

.field-description {
  margin-top: 0.15rem;
  font-size: var(--text-xs);
  color: var(--gray-500);
}

.field-error {
  margin-top: 0.25rem;
  font-size: var(--text-xs);
  color: var(--color-danger);
}

/* Card - for experiences, events, casino evenings */
.card {
  position: relative;
  background: #ffffff;
  border-radius: var(--radius-lg);
  border: 1px solid rgba(148, 163, 184, 0.22);
  padding: var(--space-5);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  transition:
    transform var(--transition-normal),
    box-shadow var(--transition-normal),
    border-color var(--transition-normal),
    background-color var(--transition-normal);
}

.card::before {
  content: "";
  position: absolute;
  inset: -40%;
  background: radial-gradient(circle at top left, rgba(0, 196, 204, 0.18), transparent 60%),
              radial-gradient(circle at bottom right, rgba(37, 99, 235, 0.12), transparent 55%);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-slow);
  z-index: -1;
}

.card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
  border-color: rgba(56, 189, 248, 0.7);
}

.card:hover::before {
  opacity: 1;
}

.card--interactive {
  cursor: pointer;
}

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

.card-title {
  font-size: var(--text-xl);
  margin-bottom: 0.25rem;
}

.card-meta {
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: var(--gray-500);
}

/* Header-specific base (navigation with centered logo) */
.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  background-color: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(18px);
  border-bottom: 1px solid rgba(148, 163, 184, 0.25);
}

.site-header__inner {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: var(--space-4);
  padding-block: 0.7rem;
}

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

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

.nav-link {
  position: relative;
  font-size: var(--text-sm);
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--gray-600);
  padding: 0.4rem 0;
}

.nav-link.is-active {
  color: var(--color-text);
}

.nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -0.25rem;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent-orange));
  border-radius: 999px;
  transition: width var(--transition-normal);
}

.nav-link:hover::after,
.nav-link.is-active::after {
  width: 100%;
}

@media (max-width: 1023.98px) {
  .site-header__inner {
    grid-template-columns: auto auto auto;
  }

  .site-header__nav-left,
  .site-header__nav-right {
    display: none;
  }
}

/* Footer base */
.site-footer {
  border-top: 1px solid var(--gray-200);
  background-color: var(--color-bg-alt);
  padding-block: var(--space-8);
  font-size: var(--text-sm);
}

.site-footer__meta {
  color: var(--gray-500);
}

/* Badges / pills (e.g., responsible entertainment, categories) */
.badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.25rem 0.7rem;
  border-radius: var(--radius-full);
  font-size: var(--text-xs);
  font-weight: 500;
  background-color: var(--color-bg-soft);
  color: var(--gray-700);
}

.badge--highlight {
  background: linear-gradient(135deg, rgba(0, 196, 204, 0.14), rgba(37, 99, 235, 0.14));
  color: var(--color-primary-dark);
}

.badge--success {
  background-color: rgba(34, 197, 94, 0.12);
  color: var(--color-success);
}

/* Tags for events / experiences */
.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.tag {
  padding: 0.25rem 0.55rem;
  border-radius: var(--radius-full);
  background-color: var(--gray-100);
  color: var(--gray-700);
  font-size: var(--text-xs);
}

/* Media cards for gallery */
.media-card {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-lg);
  background-color: var(--gray-800);
}

.media-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.media-card::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(15, 23, 42, 0) 40%, rgba(15, 23, 42, 0.6) 100%);
  opacity: 0;
  transition: opacity var(--transition-normal);
}

.media-card:hover img {
  transform: scale(1.05);
}

.media-card:hover::after {
  opacity: 1;
}

/* Chip-style info for opening hours / contact */
.info-chip {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.45rem 0.85rem;
  border-radius: var(--radius-full);
  background-color: #ffffff;
  border: 1px solid var(--gray-200);
  box-shadow: var(--shadow-xs);
  font-size: var(--text-xs);
}

/* Prefer reduced motion - remove big transforms */
@media (prefers-reduced-motion: reduce) {
  * {
    scroll-behavior: auto !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  .card,
  .media-card img,
  .btn {
    transform: none !important;
  }
}