/* =============================================
   Variables
   ============================================= */
:root {
  /* Color palette – Czech-inspired, premium */
  --color-background: #f8fafc; /* soft white */
  --color-surface: #ffffff;
  --color-surface-muted: #f2f4f8;

  --color-text: #0f172a; /* deep slate */
  --color-text-muted: #64748b;

  --color-primary: #0f3b8c; /* refined deep blue */
  --color-primary-soft: #e1e8f7;
  --color-primary-strong: #0b285d;

  --color-accent: #c53030; /* warm red accent */
  --color-accent-soft: #fde7e7;

  --color-success: #15803d;
  --color-warning: #b45309;
  --color-danger: #b91c1c;

  --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: "Playfair Display", "Times New Roman", 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: 1.2;
  --line-height-snug: 1.35;
  --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-sm: 0.25rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-pill: 999px;

  /* Shadows – subtle, premium */
  --shadow-sm: 0 4px 10px rgba(15, 23, 42, 0.06);
  --shadow-md: 0 10px 25px rgba(15, 23, 42, 0.12);
  --shadow-lg: 0 24px 60px rgba(15, 23, 42, 0.16);

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

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

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

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

html {
  margin: 0;
  padding: 0;
  scroll-behavior: smooth;
  text-size-adjust: 100%;
}

body {
  margin: 0;
}

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

ul,
ol {
  list-style: none;
}

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

img {
  height: auto;
}

button,
input,
select,
textarea {
  font: inherit;
  color: inherit;
  margin: 0;
}

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

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

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

/* Remove default focus outlines, we will re-add them with :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);
  color: var(--color-text);
  background-color: var(--color-background);
  -webkit-font-smoothing: antialiased;
}

.main-page {
  min-height: 100vh;
  background-color: var(--color-background);
}

/* Headings – modern & generous */
h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--font-display);
  font-weight: 600;
  color: var(--color-text);
  line-height: var(--line-height-tight);
}

h1 {
  font-size: var(--font-size-4xl);
  letter-spacing: -0.03em;
}

h2 {
  font-size: var(--font-size-3xl);
  letter-spacing: -0.02em;
}

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

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

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

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

@media (min-width: 768px) {
  h1 {
    font-size: var(--font-size-5xl);
  }
  h2 {
    font-size: 2rem;
  }
}

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

strong {
  font-weight: 600;
}

/* Links – subtle, elegant */
a {
  position: relative;
  transition: color var(--transition-base);
}

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

a.link-underline {
  text-decoration: none;
}

a.link-underline::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -0.1em;
  width: 100%;
  height: 1px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
  transform-origin: left;
  transform: scaleX(0);
  transition: transform var(--transition-base);
}

a.link-underline:hover::after {
  transform: scaleX(1);
}

/* Hero-specific helpers */
.hero {
  position: relative;
  width: 100%;
  min-height: 70vh;
  color: #ffffff;
  display: flex;
  align-items: center;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at top left, rgba(15, 59, 140, 0.55), transparent 60%),
              radial-gradient(circle at bottom right, rgba(197, 48, 48, 0.45), transparent 55%),
              linear-gradient(to bottom, rgba(15, 23, 42, 0.78), rgba(15, 23, 42, 0.94));
  pointer-events: none;
}

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

.hero__media img,
.hero__media video {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero__overlay {
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 20% 20%, rgba(255, 255, 255, 0.08), transparent 55%);
  z-index: -1;
}

.hero__content {
  position: relative;
  width: 100%;
  padding-block: var(--space-16);
}

.hero__eyebrow {
  font-size: var(--font-size-sm);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: rgba(241, 245, 249, 0.9);
  margin-bottom: var(--space-2);
}

.hero__title {
  max-width: 18ch;
  margin-bottom: var(--space-4);
  color: #fff;
}

.hero__subtitle {
  max-width: 45ch;
  font-size: var(--font-size-lg);
  color: rgba(226, 232, 240, 0.9);
  line-height: var(--line-height-relaxed);
  margin-bottom: var(--space-6);
}

.hero__cta-group {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  align-items: center;
}

.hero__meta {
  margin-top: var(--space-6);
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
  font-size: var(--font-size-sm);
  color: rgba(226, 232, 240, 0.85);
}

.hero__meta-item {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
}

.hero__meta-dot {
  width: 6px;
  height: 6px;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--color-accent), #f97373);
}

@media (min-width: 768px) {
  .hero {
    min-height: 82vh;
  }
}

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

[tabindex="-1"]:focus {
  outline: none !important;
}

.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;
}

@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;
  }
}

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

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

.section--hero-offset {
  padding-top: var(--space-16);
  padding-bottom: var(--space-12);
}

.section__header {
  margin-bottom: var(--space-8);
}

.section__eyebrow {
  font-size: var(--font-size-sm);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--color-primary);
  margin-bottom: var(--space-2);
}

.section__title {
  max-width: 28ch;
}

.section__subtitle {
  max-width: 46ch;
  color: var(--color-text-muted);
  margin-top: var(--space-3);
}

/* 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;
}

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

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

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

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

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

.grid-2 {
  display: grid;
  gap: var(--space-6);
}

.grid-3 {
  display: grid;
  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-center {
  text-align: center;
}

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

.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); }

.hidden { display: none !important; }

@media (min-width: 768px) {
  .hidden-md-up { display: none !important; }
}

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

/* Buttons – primary (Rezervovat stůl), secondary (Prozkoumat akce) */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.35rem;
  padding-inline: 1.6rem;
  padding-block: 0.8rem;
  border-radius: var(--radius-pill);
  font-size: var(--font-size-sm);
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  border: 1px solid transparent;
  transition:
    background-color var(--transition-base),
    color var(--transition-base),
    box-shadow var(--transition-base),
    transform var(--transition-fast),
    border-color var(--transition-base);
}

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

.btn--primary:hover:not(:disabled) {
  transform: translateY(-1px);
  box-shadow: var(--shadow-lg);
  background: linear-gradient(135deg, var(--color-primary-strong), #020617);
}

.btn--primary:active:not(:disabled) {
  transform: translateY(0);
  box-shadow: var(--shadow-sm);
}

.btn--secondary {
  background-color: rgba(15, 23, 42, 0.02);
  border-color: rgba(148, 163, 184, 0.5);
  color: var(--color-text);
}

.btn--secondary:hover:not(:disabled) {
  background-color: rgba(15, 59, 140, 0.06);
  border-color: var(--color-primary);
}

.btn--ghost-light {
  background-color: rgba(15, 23, 42, 0.24);
  color: #e5e7eb;
  border-color: rgba(148, 163, 184, 0.6);
}

.btn--ghost-light:hover:not(:disabled) {
  background-color: rgba(15, 23, 42, 0.5);
  border-color: #f9fafb;
}

.btn--accent {
  background: linear-gradient(135deg, var(--color-accent), #f97373);
  color: #ffffff;
  box-shadow: var(--shadow-md);
}

.btn--accent:hover:not(:disabled) {
  background: linear-gradient(135deg, #991b1b, var(--color-accent));
}

.btn--sm {
  padding-inline: 1.1rem;
  padding-block: 0.55rem;
  font-size: var(--font-size-xs);
}

.btn--full {
  width: 100%;
}

.btn:disabled,
.btn[aria-disabled="true"] {
  opacity: 0.5;
  cursor: not-allowed;
  box-shadow: none;
}

.btn:focus-visible {
  outline: 2px solid #ffffff;
  outline-offset: 3px;
}

/* Inputs & form elements – reservation & contact */
.input,
.textarea,
.select {
  width: 100%;
  padding-inline: var(--space-3);
  padding-block: 0.75rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--gray-200);
  background-color: #ffffff;
  font-size: var(--font-size-sm);
  color: var(--color-text);
  transition:
    border-color var(--transition-base),
    box-shadow var(--transition-base),
    background-color var(--transition-base);
}

.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 rgba(15, 59, 140, 0.1), 0 0 0 4px rgba(15, 59, 140, 0.12);
}

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

.label {
  display: block;
  font-size: var(--font-size-sm);
  font-weight: 500;
  margin-bottom: var(--space-2);
  color: var(--gray-700);
}

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

.field--inline {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.field__hint {
  margin-top: var(--space-1);
  font-size: var(--font-size-xs);
  color: var(--gray-500);
}

.field__error {
  margin-top: var(--space-1);
  font-size: var(--font-size-xs);
  color: var(--color-danger);
}

input[aria-invalid="true"],
textarea[aria-invalid="true"],
select[aria-invalid="true"] {
  border-color: var(--color-danger);
}

/* Card – used for events, poker evenings, highlights */
.card {
  position: relative;
  background-color: var(--color-surface);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
  box-shadow: var(--shadow-sm);
  border: 1px solid rgba(148, 163, 184, 0.16);
  transition:
    box-shadow var(--transition-base),
    transform var(--transition-base),
    border-color var(--transition-base),
    background-color var(--transition-base);
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: rgba(15, 59, 140, 0.24);
}

.card--muted {
  background-color: var(--color-surface-muted);
}

.card__eyebrow {
  font-size: var(--font-size-xs);
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: var(--color-primary);
  margin-bottom: var(--space-2);
}

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

.card__meta {
  font-size: var(--font-size-xs);
  color: var(--gray-500);
  margin-bottom: var(--space-3);
}

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

.card__footer {
  margin-top: var(--space-4);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-3);
}

/* Badge – for upcoming events, poker evenings info */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  padding-inline: 0.6rem;
  padding-block: 0.2rem;
  border-radius: var(--radius-pill);
  font-size: var(--font-size-xs);
  font-weight: 500;
  border: 1px solid transparent;
}

.badge--primary {
  background-color: var(--color-primary-soft);
  color: var(--color-primary-strong);
  border-color: rgba(15, 59, 140, 0.2);
}

.badge--accent {
  background-color: var(--color-accent-soft);
  color: var(--color-accent);
  border-color: rgba(197, 48, 48, 0.3);
}

.badge--outline {
  background-color: transparent;
  color: var(--gray-700);
  border-color: var(--gray-200);
}

/* Navigation shell – minimal & premium header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  backdrop-filter: blur(20px);
  background: linear-gradient(to bottom, rgba(248, 250, 252, 0.92), rgba(248, 250, 252, 0.86));
  border-bottom: 1px solid rgba(148, 163, 184, 0.18);
}

.site-header--on-hero {
  background: linear-gradient(to bottom, rgba(15, 23, 42, 0.92), rgba(15, 23, 42, 0.7));
  border-bottom-color: rgba(148, 163, 184, 0.5);
}

.navbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-block: var(--space-3);
}

.navbar__brand {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-display);
  font-size: var(--font-size-lg);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.navbar__brand-mark {
  width: 26px;
  height: 26px;
  border-radius: 6px;
  background: conic-gradient(from 210deg, var(--color-primary), var(--color-primary), #ffffff, var(--color-accent));
  box-shadow: 0 0 0 1px rgba(15, 23, 42, 0.22);
}

.navbar__nav {
  display: none;
  align-items: center;
  gap: var(--space-6);
  font-size: var(--font-size-sm);
}

@media (min-width: 900px) {
  .navbar__nav {
    display: flex;
  }
}

.navbar__link {
  position: relative;
  padding-block: 0.25rem;
  color: var(--gray-600);
  transition: color var(--transition-base);
}

.site-header--on-hero .navbar__link {
  color: rgba(226, 232, 240, 0.85);
}

.navbar__link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 2px;
  border-radius: 999px;
  background: linear-gradient(to right, var(--color-primary), var(--color-accent));
  transform: scaleX(0);
  transform-origin: center;
  transition: transform var(--transition-base);
}

.navbar__link:hover::after,
.navbar__link[aria-current="page"]::after {
  transform: scaleX(1);
}

.navbar__link[aria-current="page"] {
  color: var(--color-primary);
}

.site-header--on-hero .navbar__link[aria-current="page"] {
  color: #ffffff;
}

/* Footer */
.site-footer {
  border-top: 1px solid rgba(148, 163, 184, 0.3);
  background: radial-gradient(circle at top left, rgba(15, 59, 140, 0.04), transparent 60%),
              radial-gradient(circle at bottom right, rgba(197, 48, 48, 0.06), transparent 55%),
              #020617;
  color: rgba(226, 232, 240, 0.9);
}

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

.site-footer__bottom {
  border-top: 1px solid rgba(148, 163, 184, 0.3);
  padding-block: var(--space-4);
  font-size: var(--font-size-xs);
  color: rgba(148, 163, 184, 0.9);
}

/* Subtle section dividers */
.section-divider {
  width: 100%;
  height: 1px;
  background: linear-gradient(to right, transparent, rgba(148, 163, 184, 0.35), transparent);
  margin-block: var(--space-12);
}

/* Micro-animations for sections */
.reveal {
  opacity: 0;
  transform: translateY(12px);
  transition:
    opacity 480ms var(--transition-base),
    transform 480ms var(--transition-base);
}

.reveal--visible {
  opacity: 1;
  transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
  .reveal,
  .reveal--visible {
    opacity: 1;
    transform: none;
    transition: none;
  }
}

/* Map wrapper */
.map-embed {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  border: 1px solid rgba(148, 163, 184, 0.3);
}

.map-embed iframe {
  display: block;
  width: 100%;
  height: 100%;
  border: 0;
}

/* Gallery image styling */
.gallery-grid {
  display: grid;
  gap: var(--space-4);
}

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

.gallery-grid__item {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
}

.gallery-grid__item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transform: scale(1.02);
  transition: transform var(--transition-slow), filter var(--transition-slow);
}

.gallery-grid__item::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(15, 23, 42, 0.55), transparent 55%);
  opacity: 0;
  transition: opacity var(--transition-base);
}

.gallery-grid__item:hover img {
  transform: scale(1.06);
  filter: saturate(1.1);
}

.gallery-grid__item:hover::after {
  opacity: 1;
}