/*
Theme Name: CHILDSIDE
Theme URI: https://childside.ru
Author: ChildSide Team
Author URI: https://childside.ru
Description: Инклюзивный навигатор для детей и семей с особенными потребностями
Version: 1.0.0
Requires at least: 5.0
Tested up to: 6.4
Requires PHP: 7.4
License: GNU General Public License v2 or later
License URI: http://www.gnu.org/licenses/gpl-2.0.html
Text Domain: childside
Tags: accessibility, dark-mode, inclusive, custom-background, custom-colors, custom-header, custom-menu, featured-images, threaded-comments, translation-ready

CHILDSIDE - Доступ без барьеров
*/

/* CSS Variables - Design System */
:root {
  /* Colors - Dark Background */
  --color-bg-dark: #16161A;
  --color-bg-darker: #1C1C22;
  --color-bg-elevated: #242429;

  /* Colors - Accent */
  --color-accent-lime: #B6E434;
  --color-accent-lime-hover: #A3E635;
  --color-accent-purple: #8C68CD;
  --color-accent-purple-hover: #9F7AEA;

  /* Colors - Text */
  --color-text-primary: #FFFFFF;
  --color-text-secondary: #E2E8F0;
  --color-text-muted: #94A3B8;
  --color-text-disabled: #64748B;

  /* Colors - UI Elements */
  --color-border: #2D2D35;
  --color-border-hover: #3D3D45;
  --color-input-bg: #1E1E24;
  --color-error: #EF4444;
  --color-success: #10B981;
  --color-warning: #F59E0B;

  /* Typography */
  --font-family-base: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-family-display: 'Manrope', var(--font-family-base);

  /* Font Sizes */
  --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 Heights */
  --line-height-tight: 1.25;
  --line-height-normal: 1.5;
  --line-height-relaxed: 1.75;
  --line-height-loose: 2;

  /* Spacing */
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-2xl: 3rem;
  --spacing-3xl: 4rem;

  /* Border Radius */
  --radius-sm: 0.25rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-full: 9999px;

  /* 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);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);

  /* Transitions */
  --transition-fast: 150ms ease-in-out;
  --transition-base: 200ms ease-in-out;
  --transition-slow: 300ms ease-in-out;

  /* 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 */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

body {
  font-family: var(--font-family-base);
  font-size: var(--font-size-base);
  line-height: var(--line-height-normal);
  color: var(--color-text-primary);
  background-color: var(--color-bg-dark);
  overflow-x: hidden;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-family-display);
  font-weight: 700;
  line-height: var(--line-height-tight);
  margin-bottom: var(--spacing-md);
  color: var(--color-text-primary);
}

h1 { font-size: var(--font-size-4xl); }
h2 { font-size: var(--font-size-3xl); }
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); }

p {
  margin-bottom: var(--spacing-md);
  color: var(--color-text-secondary);
}

a {
  color: var(--color-accent-lime);
  text-decoration: none;
  transition: color var(--transition-fast);
}

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

a:focus-visible {
  outline: 2px solid var(--color-accent-lime);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}

/* Skip to content link for accessibility */
.skip-link {
  position: absolute;
  top: -100px;
  left: 0;
  background: var(--color-accent-lime);
  color: var(--color-bg-dark);
  padding: var(--spacing-sm) var(--spacing-md);
  text-decoration: none;
  font-weight: 600;
  z-index: 100000;
  border-radius: 0 0 var(--radius-md) 0;
}

.skip-link:focus {
  top: 0;
}

/* Container */
.container {
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
}

.container-wide {
  max-width: 1440px;
}

.container-narrow {
  max-width: 960px;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-sm) var(--spacing-lg);
  font-size: var(--font-size-base);
  font-weight: 600;
  line-height: 1.5;
  text-align: center;
  border: 2px solid transparent;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-base);
  text-decoration: none;
  white-space: nowrap;
}

.btn-primary {
  background: var(--color-accent-lime);
  color: var(--color-bg-dark);
}

.btn-primary:hover {
  background: var(--color-accent-lime-hover);
  color: var(--color-bg-dark);
  transform: translateY(-1px);
}

.btn-secondary {
  background: var(--color-accent-purple);
  color: var(--color-text-primary);
}

.btn-secondary:hover {
  background: var(--color-accent-purple-hover);
  color: var(--color-text-primary);
  transform: translateY(-1px);
}

.btn-outline {
  background: transparent;
  border-color: var(--color-accent-lime);
  color: var(--color-accent-lime);
}

.btn-outline:hover {
  background: var(--color-accent-lime);
  color: var(--color-bg-dark);
}

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

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

.mt-0 { margin-top: 0; }
.mt-sm { margin-top: var(--spacing-sm); }
.mt-md { margin-top: var(--spacing-md); }
.mt-lg { margin-top: var(--spacing-lg); }
.mt-xl { margin-top: var(--spacing-xl); }

.mb-0 { margin-bottom: 0; }
.mb-sm { margin-bottom: var(--spacing-sm); }
.mb-md { margin-bottom: var(--spacing-md); }
.mb-lg { margin-bottom: var(--spacing-lg); }
.mb-xl { margin-bottom: var(--spacing-xl); }

/* Responsive */
@media (max-width: 768px) {
  html {
    font-size: 14px;
  }

  .container {
    padding: 0 var(--spacing-md);
  }

  h1 { font-size: var(--font-size-3xl); }
  h2 { font-size: var(--font-size-2xl); }
  h3 { font-size: var(--font-size-xl); }
}