/*
Theme Name: Spanish Learning
Theme URI: https://example.com/spanish-learning
Author: Your Name
Author URI: https://example.com
Description: Яркая и дружелюбная тема для обучения испанскому языку. Вдохновлена Duolingo, Khan Academy и другими успешными образовательными платформами.
Version: 1.0.0
Requires at least: 5.8
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: spanish-learning
Tags: education, colorful, friendly, accessibility-ready, custom-colors, featured-images, threaded-comments, translation-ready
*/

@import url('https://fonts.googleapis.com/css2?family=Nunito:wght@400;600;700;800&family=Quicksand:wght@400;500;600;700&display=swap');

/* ============================================
   Цветовая палитра - яркая и дружелюбная
   ============================================ */

:root {
    /* Основные цвета - яркие и позитивные */
    --color-primary: #58CC02;        /* Зеленый как у Duolingo */
    --color-primary-dark: #46A302;
    --color-primary-light: #89E219;
    
    --color-secondary: #1CB0F6;      /* Яркий голубой */
    --color-secondary-dark: #1899D6;
    --color-secondary-light: #58D3FF;
    
    --color-accent: #FF9600;         /* Оранжевый акцент */
    --color-success: #58CC02;
    --color-warning: #FFC800;
    --color-error: #FF4B4B;
    
    /* Нейтральные цвета - светлые */
    --color-white: #FFFFFF;
    --color-gray-50: #F9FAFB;
    --color-gray-100: #F3F4F6;
    --color-gray-200: #E5E7EB;
    --color-gray-300: #D1D5DB;
    --color-gray-400: #9CA3AF;
    --color-gray-500: #6B7280;
    --color-gray-600: #4B5563;
    --color-gray-700: #374151;
    --color-gray-800: #1F2937;
    --color-gray-900: #111827;
    
    /* Фон */
    --color-bg: #FFFFFF;
    --color-bg-secondary: #F9FAFB;
    
    /* Текст */
    --color-text: #1F2937;
    --color-text-light: #6B7280;
    
    /* Тени - мягкие */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-md: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    
    /* Радиусы - плавные */
    --radius-sm: 8px;
    --radius: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-full: 9999px;
    
    /* Отступы */
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;
    --spacing-2xl: 48px;
    --spacing-3xl: 64px;
    
    /* Переходы */
    --transition: all 0.3s ease;
    --transition-fast: all 0.15s ease;
}

/* ============================================
   Сброс и базовые стили
   ============================================ */

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Nunito', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    font-size: 16px;
    line-height: 1.6;
    color: var(--color-text);
    background: var(--color-bg);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ============================================
   Типографика - дружелюбная и читаемая
   ============================================ */

h1, h2, h3, h4, h5, h6 {
    font-family: 'Quicksand', sans-serif;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: var(--spacing-md);
    color: var(--color-gray-900);
}

h1 {
    font-size: 2.5rem;
    font-weight: 800;
}

h2 {
    font-size: 2rem;
    font-weight: 700;
}

h3 {
    font-size: 1.5rem;
}

h4 {
    font-size: 1.25rem;
}

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

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

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

/* ============================================
   Layout - простой и чистый
   ============================================ */

.site {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

.site-content {
    flex: 1;
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--spacing-lg);
    width: 100%;
}

/* ============================================
   Header - яркая и дружелюбная шапка
   ============================================ */

.site-header {
    background: var(--color-white);
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--spacing-md) var(--spacing-lg);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--spacing-lg);
}

.site-branding {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.site-title {
    margin: 0;
    font-size: 1.75rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.site-title a {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ============================================
   Navigation - простое меню
   ============================================ */

.main-navigation ul {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    gap: var(--spacing-sm);
    align-items: center;
}

.main-navigation a {
    display: inline-block;
    padding: var(--spacing-sm) var(--spacing-md);
    color: var(--color-gray-700);
    font-weight: 600;
    border-radius: var(--radius-full);
    transition: var(--transition-fast);
}

.main-navigation a:hover {
    background: var(--color-gray-100);
    color: var(--color-primary);
}

.main-navigation .current-menu-item a {
    background: var(--color-primary);
    color: var(--color-white);
}

/* Mobile menu toggle */
.menu-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--color-gray-700);
    padding: var(--spacing-sm);
}

/* ============================================
   Buttons - яркие и дружелюбные
   ============================================ */

.btn,
.wp-block-button__link,
input[type="submit"],
button[type="submit"] {
    display: inline-block;
    padding: 14px 28px;
    font-family: 'Quicksand', sans-serif;
    font-size: 1rem;
    font-weight: 700;
    text-align: center;
    border: none;
    border-radius: var(--radius-full);
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
    box-shadow: var(--shadow);
}

.btn-primary,
.wp-block-button__link {
    background: var(--color-primary);
    color: var(--color-white);
}

.btn-primary:hover {
    background: var(--color-primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
    color: var(--color-white);
}

.btn-secondary {
    background: var(--color-white);
    color: var(--color-primary);
    border: 2px solid var(--color-primary);
}

.btn-secondary:hover {
    background: var(--color-primary);
    color: var(--color-white);
}

/* ============================================
   Cards - светлые и приветливые
   ============================================ */

.card,
.post,
article {
    background: var(--color-white);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    margin-bottom: var(--spacing-lg);
    box-shadow: var(--shadow);
    transition: var(--transition);
    border: 1px solid var(--color-gray-100);
}

.card:hover,
.post:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-4px);
}

.entry-title {
    margin: 0 0 var(--spacing-md) 0;
    font-size: 1.75rem;
}

.entry-title a {
    color: var(--color-gray-900);
}

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

.entry-meta {
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
    margin-bottom: var(--spacing-md);
    font-size: 0.9rem;
    color: var(--color-text-light);
}

.entry-meta span {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.post-thumbnail {
    border-radius: var(--radius);
    overflow: hidden;
    margin-bottom: var(--spacing-lg);
}

.post-thumbnail img {
    width: 100%;
    height: auto;
    display: block;
}

/* ============================================
   Forms - простые и понятные
   ============================================ */

input[type="text"],
input[type="email"],
input[type="url"],
input[type="password"],
input[type="search"],
textarea,
select {
    width: 100%;
    padding: var(--spacing-md);
    font-family: 'Nunito', sans-serif;
    font-size: 1rem;
    border: 2px solid var(--color-gray-200);
    border-radius: var(--radius);
    background: var(--color-white);
    color: var(--color-text);
    transition: var(--transition-fast);
}

input:focus,
textarea:focus,
select:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(88, 204, 2, 0.1);
}

/* ============================================
   Sidebar - минимальный
   ============================================ */

.widget-area {
    margin-top: var(--spacing-lg);
}

.widget {
    background: var(--color-white);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
    box-shadow: var(--shadow);
    border: 1px solid var(--color-gray-100);
}

.widget-title {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-sm);
    border-bottom: 3px solid var(--color-primary);
}

.widget ul {
    list-style: none;
}

.widget li {
    padding: var(--spacing-sm) 0;
    border-bottom: 1px solid var(--color-gray-100);
}

.widget li:last-child {
    border-bottom: none;
}

.widget a {
    color: var(--color-text);
}

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

/* ============================================
   Footer - простой и чистый
   ============================================ */

.site-footer {
    background: var(--color-gray-50);
    padding: var(--spacing-2xl) var(--spacing-lg) var(--spacing-lg);
    margin-top: var(--spacing-3xl);
    border-top: 1px solid var(--color-gray-200);
}

.footer-inner {
    max-width: 1200px;
    margin: 0 auto;
}

.site-info {
    text-align: center;
    padding-top: var(--spacing-lg);
    color: var(--color-text-light);
    font-size: 0.9rem;
}

/* ============================================
   Comments - дружелюбные
   ============================================ */

.comments-area {
    margin-top: var(--spacing-2xl);
}

.comment-list {
    list-style: none;
}

.comment {
    background: var(--color-gray-50);
    border-radius: var(--radius);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
}

.comment-author {
    font-weight: 700;
    color: var(--color-gray-900);
    margin-bottom: var(--spacing-sm);
}

.comment-metadata {
    font-size: 0.85rem;
    color: var(--color-text-light);
    margin-bottom: var(--spacing-sm);
}

/* ============================================
   Badges & Labels - яркие акценты
   ============================================ */

.badge {
    display: inline-block;
    padding: 4px 12px;
    border-radius: var(--radius-full);
    font-size: 0.85rem;
    font-weight: 600;
}

.badge-success {
    background: #D7F7C2;
    color: #2D7A00;
}

.badge-info {
    background: #D1EFFF;
    color: #0078B7;
}

.badge-warning {
    background: #FFF3D1;
    color: #8F6700;
}

/* ============================================
   Responsive - адаптивный дизайн
   ============================================ */

@media (max-width: 768px) {
    .hero-title {
        font-size: 2rem;
    }
    
    h1 {
        font-size: 2rem;
    }
    
    h2 {
        font-size: 1.5rem;
    }
    
    .header-inner {
        padding: var(--spacing-md);
    }
    
    .menu-toggle {
        display: block;
    }
    
    .main-navigation {
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--color-white);
        box-shadow: var(--shadow-md);
        padding: var(--spacing-md);
        display: none;
    }
    
    .main-navigation.toggled {
        display: block;
    }
    
    .main-navigation ul {
        flex-direction: column;
        align-items: stretch;
    }
    
    .main-navigation a {
        display: block;
        padding: var(--spacing-md);
    }
    
    .site-content {
        padding: var(--spacing-md);
    }
    
    .card,
    .post {
        padding: var(--spacing-lg);
    }
}

/* ============================================
   Learning Layout - Двухколоночный layout
   ============================================ */

.learning-layout {
    display: grid;
    grid-template-columns: 1fr 320px;
    gap: var(--spacing-xl);
    max-width: 1400px;
    margin: 0 auto;
    align-items: start;
}

.learning-main {
    min-width: 0;
}

/* Sidebar - компактный и функциональный */
.learning-sidebar {
    position: sticky;
    top: calc(var(--spacing-lg) + 70px);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

/* Карточки sidebar - упрощённые */
.sidebar-card {
    background: var(--color-white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
    border: 1px solid var(--color-gray-200);
    overflow: hidden;
}

.card-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md);
    background: var(--color-gray-50);
    border-bottom: 1px solid var(--color-gray-200);
}

.card-icon {
    font-size: 1.25rem;
    flex-shrink: 0;
}

.card-title {
    font-family: 'Quicksand', sans-serif;
    font-weight: 700;
    font-size: 0.95rem;
    color: var(--color-gray-900);
}

.card-subtitle {
    font-size: 0.75rem;
    color: var(--color-text-light);
}

.card-body {
    padding: var(--spacing-md);
}

/* Глагол дня */
.verb-card {
    background: linear-gradient(135deg, #6750A4 0%, #7D5260 100%);
    color: var(--color-white);
    border-color: transparent;
}

.verb-card .card-header {
    background: rgba(0, 0, 0, 0.1);
    border-bottom-color: rgba(255, 255, 255, 0.1);
}

.verb-card .card-title,
.verb-card .card-subtitle {
    color: var(--color-white);
}

.verb-main {
    display: flex;
    flex-direction: column;
    gap: 4px;
    margin-bottom: var(--spacing-sm);
    padding-bottom: var(--spacing-sm);
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
}

.verb-main strong {
    font-size: 1.5rem;
    font-weight: 800;
}

.verb-main span {
    font-size: 0.95rem;
    opacity: 0.9;
}

.verb-example {
    font-size: 0.9rem;
    font-style: italic;
    opacity: 0.85;
}

/* Справка - компактная accordion */
.reference-accordion {
    margin-bottom: var(--spacing-sm);
}

.reference-accordion summary {
    cursor: pointer;
    font-weight: 600;
    font-size: 0.9rem;
    color: var(--color-gray-700);
    padding: var(--spacing-sm);
    background: var(--color-gray-50);
    border-radius: var(--radius-sm);
    user-select: none;
}

.reference-accordion summary:hover {
    background: var(--color-gray-100);
}

.reference-mini {
    margin-top: var(--spacing-sm);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.tense-group {
    display: flex;
    flex-direction: column;
    gap: 4px;
    padding: var(--spacing-sm);
    background: var(--color-gray-50);
    border-radius: var(--radius-sm);
}

.tense-group strong {
    font-size: 0.85rem;
    color: var(--color-primary);
}

.tense-group small {
    font-size: 0.75rem;
    color: var(--color-gray-600);
    line-height: 1.3;
}

.card-link {
    display: block;
    text-align: center;
    padding: var(--spacing-xs);
    color: var(--color-primary);
    font-size: 0.85rem;
    font-weight: 600;
    margin-top: var(--spacing-xs);
}

.card-link:hover {
    text-decoration: underline;
}

/* Быстрые ссылки */
.quick-links {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.quick-links a {
    padding: var(--spacing-sm);
    background: var(--color-gray-50);
    border-radius: var(--radius-sm);
    color: var(--color-gray-700);
    font-size: 0.9rem;
    font-weight: 500;
    transition: var(--transition-fast);
    border: 1px solid var(--color-gray-200);
}

.quick-links a:hover {
    background: var(--color-primary);
    color: var(--color-white);
    border-color: var(--color-primary);
    transform: translateX(2px);
}

/* Статистика в sidebar */
.stats-card .stat-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-sm) 0;
    border-bottom: 1px solid var(--color-gray-100);
}

.stats-card .stat-item:last-of-type {
    border-bottom: none;
    margin-bottom: var(--spacing-sm);
}

.stat-label {
    font-size: 0.85rem;
    color: var(--color-text-light);
}

.stat-value {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--color-primary);
    font-family: 'Quicksand', sans-serif;
}

/* Responsive */
@media (max-width: 1024px) {
    .learning-layout {
        grid-template-columns: 1fr;
    }
    
    .learning-sidebar {
        position: static;
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
        gap: var(--spacing-md);
        margin-top: var(--spacing-xl);
    }
}

@media (max-width: 768px) {
    .learning-sidebar {
        grid-template-columns: 1fr;
    }
}

/* ============================================
   Utilities - помощники
   ============================================ */

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

.mt-lg {
    margin-top: var(--spacing-lg);
}

.mb-lg {
    margin-bottom: var(--spacing-lg);
}

.screen-reader-text {
    clip: rect(1px, 1px, 1px, 1px);
    position: absolute !important;
    height: 1px;
    width: 1px;
    overflow: hidden;
}

::selection {
    background: var(--color-primary-light);
    color: var(--color-white);
}

/* ============================================
   Accessibility - доступность
   ============================================ */

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

/* Smooth animations */
@media (prefers-reduced-motion: reduce) {
    * {
        animation: none !important;
        transition: none !important;
    }
}