/**
 * Unified Template CSS Variables
 *
 * This file provides a standardized set of CSS custom properties
 * that all templates should use. This enables:
 * - Consistent theming across templates
 * - Easy theme customization via JavaScript
 * - Live preview color/font changes
 *
 * Usage: @import '../_shared/v1.0.0/variables.css';
 * Then override :root variables in your template's style.css
 */

/* ============================================================================
   BASE RESET & DEFAULTS
   ============================================================================ */

:root {
  /* -------------------------------------------------------------------------
     COLORS
     ------------------------------------------------------------------------- */

  /* Primary brand color - main accent, buttons, links */
  --color-primary: #c86635;

  /* Secondary accent - highlights, hover states */
  --color-accent: #d4893e;

  /* Backgrounds */
  --color-background: #fdfbf9;
  --color-surface: #ffffff;
  --color-surface-elevated: #ffffff;

  /* Text colors */
  --color-text: #1a1a1a;
  --color-text-muted: #666666;
  --color-text-light: #999999;

  /* Borders and dividers */
  --color-border: #e5e5e5;
  --color-border-light: #f0f0f0;

  /* Status colors */
  --color-success: #22c55e;
  --color-error: #ef4444;
  --color-warning: #f59e0b;

  /* Overlay */
  --color-overlay: rgba(0, 0, 0, 0.5);

  /* -------------------------------------------------------------------------
     TYPOGRAPHY
     ------------------------------------------------------------------------- */

  /* Font families */
  --font-heading: 'Playfair Display', Georgia, 'Times New Roman', serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-display: var(--font-heading);
  --font-mono: 'SF Mono', Monaco, 'Cascadia Code', monospace;

  /* Font sizes - static fallbacks for browsers without clamp() (iOS < 13.4) */
  --text-xs: 0.75rem;
  --text-sm: 0.875rem;
  --text-base: 1rem;
  --text-lg: 1.125rem;
  --text-xl: 1.25rem;
  --text-2xl: 1.5rem;
  --text-3xl: 2rem;
  --text-4xl: 2.25rem;
  --text-5xl: 3rem;

  /* Font weights */
  --font-light: 300;
  --font-normal: 400;
  --font-medium: 500;
  --font-semibold: 600;
  --font-bold: 700;

  /* Line heights */
  --leading-none: 1;
  --leading-tight: 1.25;
  --leading-snug: 1.375;
  --leading-normal: 1.5;
  --leading-relaxed: 1.625;
  --leading-loose: 2;

  /* Letter spacing */
  --tracking-tighter: -0.05em;
  --tracking-tight: -0.025em;
  --tracking-normal: 0;
  --tracking-wide: 0.025em;
  --tracking-wider: 0.05em;
  --tracking-widest: 0.1em;

  /* -------------------------------------------------------------------------
     SPACING SCALE (Multiples of 4px)
     ------------------------------------------------------------------------- */

  --spacing-0: 0;
  --spacing-1: 0.25rem;
  /* 4px */
  --spacing-2: 0.5rem;
  /* 8px */
  --spacing-3: 0.75rem;
  /* 12px */
  --spacing-4: 1rem;
  /* 16px */
  --spacing-5: 1.25rem;
  /* 20px */
  --spacing-6: 1.5rem;
  /* 24px */
  --spacing-8: 2rem;
  /* 32px */
  --spacing-10: 2.5rem;
  /* 40px */
  --spacing-12: 3rem;
  /* 48px */
  --spacing-14: 3.5rem;
  /* 56px */
  --spacing-16: 4rem;
  /* 64px */
  --spacing-18: 4.5rem;
  /* 72px */
  --spacing-20: 5rem;
  /* 80px */
  --spacing-24: 6rem;
  /* 96px */
  --spacing-28: 7rem;
  /* 112px */
  --spacing-32: 8rem;
  /* 128px */
  --spacing-40: 10rem;
  /* 160px */
  --spacing-44: 11rem;
  /* 176px */
  --spacing-48: 12rem;
  /* 192px */
  --spacing-50: 12.5rem;
  /* 200px */
  --spacing-56: 14rem;
  /* 224px */
  --spacing-60: 15rem;
  /* 240px */
  --spacing-64: 16rem;
  /* 256px */
  --spacing-72: 18rem;
  /* 288px */
  --spacing-75: 18.75rem;
  /* 300px */
  --spacing-80: 20rem;
  /* 320px */
  --spacing-100: 25rem;
  /* 400px */
  --spacing-112: 28rem;
  /* 448px */
  --spacing-120: 30rem;
  /* 480px */
  --spacing-128: 32rem;
  /* 512px */
  --spacing-136: 34rem;
  /* 544px */
  --spacing-150: 37.5rem;
  /* 600px */
  --spacing-175: 43.75rem;
  /* 700px */
  --spacing-176: 44rem;
  /* 704px */
  --spacing-180: 45rem;
  /* 720px */
  --spacing-200: 50rem;
  /* 800px */
  --spacing-212: 53rem;
  /* 848px */
  --spacing-224: 56rem;
  /* 896px */
  --spacing-225: 56.25rem;
  /* 900px */
  --spacing-250: 62.5rem;
  /* 1000px */
  --spacing-275: 68.75rem;
  /* 1100px */
  --spacing-300: 75rem;
  /* 1200px */
  --spacing-350: 87.5rem;
  /* 1400px */


  /* Semantic Spacing Labels */
  --spacing-xs: var(--spacing-1);
  --spacing-sm: var(--spacing-4);
  --spacing-md: var(--spacing-6);
  --spacing-lg: var(--spacing-8);
  --spacing-xl: var(--spacing-12);
  --spacing-xxl: var(--spacing-16);
  --spacing-xxxl: var(--spacing-20);

  /* Section spacing - static fallbacks for browsers without clamp() */
  --section-padding-y: 3rem;
  --section-padding-x: 1rem;

  /* -------------------------------------------------------------------------
     LAYOUT
     ------------------------------------------------------------------------- */

  --container-sm: 640px;
  --container-md: 768px;
  --container-lg: 1024px;
  --container-xl: 1280px;
  --container-2xl: 1536px;
  --container-max: var(--container-xl);

  --page-padding: 1rem;

  /* -------------------------------------------------------------------------
     BORDERS & SHAPES
     ------------------------------------------------------------------------- */

  --radius-none: 0;
  --radius-sm: 0.125rem;
  /* 2px */
  --radius-md: 0.375rem;
  /* 6px */
  --radius-lg: 0.5rem;
  /* 8px */
  --radius-xl: 0.75rem;
  /* 12px */
  --radius-2xl: 1rem;
  /* 16px */
  --radius-3xl: 1.5rem;
  /* 24px */
  --radius-full: 9999px;

  --border-width: 1px;
  --border-width-2: 2px;

  /* -------------------------------------------------------------------------
     SHADOWS
     ------------------------------------------------------------------------- */

  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.1);
  --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);

  /* -------------------------------------------------------------------------
     TRANSITIONS
     ------------------------------------------------------------------------- */

  --transition-fast: 150ms;
  --transition-normal: 300ms;
  --transition-slow: 500ms;

  --ease-default: cubic-bezier(0.4, 0, 0.2, 1);
  --ease-in: cubic-bezier(0.4, 0, 1, 1);
  --ease-out: cubic-bezier(0, 0, 0.2, 1);
  --ease-in-out: cubic-bezier(0.4, 0, 0.2, 1);

  /* -------------------------------------------------------------------------
     Z-INDEX
     ------------------------------------------------------------------------- */

  --z-dropdown: 1000;
  --z-sticky: 1020;
  --z-fixed: 1030;
  --z-modal-backdrop: 1040;
  --z-modal: 1050;
  --z-popover: 1060;
  --z-tooltip: 1070;
}

/* ============================================================================
   BASE STYLES
   ============================================================================ */

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  padding: 0;
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: var(--leading-normal);
  color: var(--color-text);
  background-color: var(--color-background);
}

/* ============================================================================
   TYPOGRAPHY UTILITIES
   ============================================================================ */

h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--font-heading);
  font-weight: var(--font-bold);
  line-height: var(--leading-tight);
  margin: 0;
}

h1 {
  font-size: var(--text-4xl);
}

h2 {
  font-size: var(--text-3xl);
}

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

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

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

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

p {
  margin: 0 0 var(--spacing-4);
}

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--transition-fast) var(--ease-default);
}

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

/* ============================================================================
   LAYOUT UTILITIES
   ============================================================================ */

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

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

/* ============================================================================
   BILINGUAL SUPPORT
   ============================================================================ */

/* Default: show Polish, hide English */
.lang-en {
  display: none;
}

.lang-pl {
  display: inline;
}

/* When body has data-lang="en" */
body[data-lang="en"] .lang-en {
  display: inline;
}

body[data-lang="en"] .lang-pl {
  display: none;
}

/* Block-level variants */
.lang-block-en {
  display: none;
}

.lang-block-pl {
  display: block;
}

body[data-lang="en"] .lang-block-en {
  display: block;
}

body[data-lang="en"] .lang-block-pl {
  display: none;
}

/* --- Language Switcher Shared Styles --- */
.language-switcher,
.lang-switch {
  display: flex !important;
  gap: 1rem;
  align-items: center;
  list-style: none;
  padding: 0;
  margin: 0;
}

.lang-btn {
  background: none;
  border: none;
  color: inherit;
  font-family: inherit;
  font-size: 0.8rem;
  font-weight: var(--font-medium);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  cursor: pointer;
  padding: 4px 0;
  opacity: 0.6;
  transition: all var(--transition-fast) var(--ease-default);
  position: relative;
  outline: none;
  line-height: 1;
}

.lang-btn:hover {
  opacity: 1;
}

.lang-btn.active {
  opacity: 1;
}

.lang-btn.active::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 1px;
  background: currentColor;
}

/* Base Dropdown Fallback (Rule 3) */
.lang-select-wrapper {
  position: relative;
  display: inline-block;
}

.lang-select-dropdown {
  background: transparent;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 4px 8px;
  font-size: 0.75rem;
  color: inherit;
  cursor: pointer;
  outline: none;
}

/* ============================================================================
   ANIMATION UTILITIES
   ============================================================================ */

@keyframes fadeIn {
  from {
    opacity: 0;
  }

  to {
    opacity: 1;
  }
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeInDown {
  from {
    opacity: 0;
    transform: translateY(-20px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.animate-fade-in {
  animation: fadeIn var(--transition-normal) var(--ease-out) forwards;
}

.animate-fade-in-up {
  animation: fadeInUp var(--transition-normal) var(--ease-out) forwards;
}

.animate-fade-in-down {
  animation: fadeInDown var(--transition-normal) var(--ease-out) forwards;
}

/* Stagger animations for lists */
.stagger-children>* {
  opacity: 0;
  animation: fadeInUp var(--transition-normal) var(--ease-out) forwards;
}

.stagger-children>*:nth-child(1) {
  animation-delay: 0ms;
}

.stagger-children>*:nth-child(2) {
  animation-delay: 100ms;
}

.stagger-children>*:nth-child(3) {
  animation-delay: 200ms;
}

.stagger-children>*:nth-child(4) {
  animation-delay: 300ms;
}

.stagger-children>*:nth-child(5) {
  animation-delay: 400ms;
}

/* ============================================================================
   LOADING STATES
   ============================================================================ */

/* Skeleton loading placeholder */
.skeleton {
  background: linear-gradient(90deg,
      var(--color-border-light) 25%,
      var(--color-surface) 50%,
      var(--color-border-light) 75%);
  background-size: 200% 100%;
  animation: skeleton-pulse 1.5s ease-in-out infinite;
  border-radius: var(--radius-md);
}

@keyframes skeleton-pulse {
  0% {
    background-position: 200% 0;
  }

  100% {
    background-position: -200% 0;
  }
}

/* Content loaded state */
[data-key].content-loaded {
  animation: fadeIn var(--transition-fast) var(--ease-out);
}

/* ============================================================================
   RESPONSIVE BREAKPOINTS (for reference)
   ============================================================================ */

/*
  --breakpoint-sm: 640px;
  --breakpoint-md: 768px;
  --breakpoint-lg: 1024px;
  --breakpoint-xl: 1280px;
  --breakpoint-2xl: 1536px;

  Usage:
  @media (min-width: 640px) { }   // sm
  @media (min-width: 768px) { }   // md
  @media (min-width: 1024px) { }  // lg
  @media (min-width: 1280px) { }  // xl
*/

/* ============================================================================
   PRINT STYLES
   ============================================================================ */

@media print {
  body {
    background: white;
    color: black;
  }

  .no-print {
    display: none !important;
  }

  a {
    color: inherit;
    text-decoration: underline;
  }

  /* Show full URLs for links */
  a[href^="http"]::after {
    content: " (" attr(href) ")";
    font-size: 0.8em;
  }
}

/* ============================================================================
   COMMON UI COMPONENTS
   ============================================================================ */

/* Language Dropdown */
.lang-dropdown {
  position: relative;
  display: inline-block;
  font-family: var(--font-body);
  z-index: var(--z-dropdown);
}

.lang-dropdown-btn {
  background: var(--color-surface);
  color: var(--color-text);
  border: 1px solid var(--color-border);
  padding: 8px 12px;
  font-size: 14px;
  border-radius: var(--radius-md);
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 8px;
  transition: all var(--transition-fast) var(--ease-default);
  text-transform: uppercase;
  font-weight: var(--font-medium);
}

.lang-dropdown-btn:hover {
  border-color: var(--color-primary);
  background: var(--color-background);
}

.lang-dropdown-btn::after {
  content: "";
  width: 0;
  height: 0;
  border-left: 4px solid transparent;
  border-right: 4px solid transparent;
  border-top: 4px solid currentColor;
  margin-left: 4px;
  transition: transform var(--transition-fast) var(--ease-default);
}

.lang-dropdown.open .lang-dropdown-btn::after {
  transform: rotate(180deg);
}

.lang-dropdown-content {
  position: absolute;
  top: calc(100% + 5px);
  right: 0;
  background: var(--color-surface);
  min-width: 120px;
  box-shadow: var(--shadow-lg);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  display: none;
  flex-direction: column;
  overflow: hidden;
  animation: fadeInDown var(--transition-fast) var(--ease-out);
}

.lang-dropdown.open .lang-dropdown-content {
  display: flex;
}

.lang-dropdown-item {
  padding: 10px 16px;
  font-size: 14px;
  color: var(--color-text);
  text-decoration: none;
  cursor: pointer;
  transition: background var(--transition-fast) var(--ease-default);
  text-align: left;
  background: none;
  border: none;
  width: 100%;
  display: flex;
  align-items: center;
  gap: 8px;
}

.lang-dropdown-item:hover {
  background: var(--color-border-light);
}

.lang-dropdown-item.active {
  color: var(--color-primary);
  font-weight: var(--font-bold);
  background: var(--color-background);
}

/* ============================================================================
   ACCESSIBILITY
   ============================================================================ */
/* Fluid typography — override static fallbacks where clamp() is supported (Chrome 79+, Safari 13.1+, Firefox 75+) */
@supports (font-size: clamp(1px, 1px, 1px)) {
  :root {
    --text-xs: clamp(0.75rem, 0.7rem + 0.25vw, 0.875rem);
    --text-sm: clamp(0.875rem, 0.8rem + 0.375vw, 1rem);
    --text-base: clamp(1rem, 0.9rem + 0.5vw, 1.125rem);
    --text-lg: clamp(1.125rem, 1rem + 0.625vw, 1.25rem);
    --text-xl: clamp(1.25rem, 1.1rem + 0.75vw, 1.5rem);
    --text-2xl: clamp(1.5rem, 1.25rem + 1.25vw, 2rem);
    --text-3xl: clamp(2rem, 1.5rem + 1.875vw, 2.5rem);
    --text-4xl: clamp(2.25rem, 1.75rem + 2.5vw, 3rem);
    --text-5xl: clamp(3rem, 2em + 5vw, 4rem);
    --section-padding-y: clamp(3rem, 5vw, 6rem);
    --section-padding-x: clamp(1rem, 5vw, 2rem);
    --page-padding: clamp(1rem, 5vw, 2rem);
  }
}

@media (prefers-reduced-motion: reduce) {

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