/*
Theme Name: Eduka Child
Theme URI: https://eduka.mn
Description: Eduka.mn-ний боловсролын контент зардаг минималист, орчин үеийн child theme. Storefront-ээс уламжилсан.
Author: Eduka Team
Author URI: https://eduka.mn
Template: storefront
Version: 1.0.0
License: GNU General Public License v2 or later
License URI: https://www.gnu.org/licenses/gpl-2.0.html
Text Domain: eduka-child
Tags: e-commerce, education, minimal, modern, clean
*/

/* ==========================================================================
   CSS VARIABLES — Design Tokens
   ========================================================================== */
:root {
    /* Colors — Боловсролд тохирсон минимал палет */
    --eduka-primary: #2563eb;        /* Гол цэнхэр */
    --eduka-primary-dark: #1d4ed8;
    --eduka-primary-light: #dbeafe;
    --eduka-accent: #f59e0b;         /* Шар тодруулга */
    --eduka-success: #10b981;
    --eduka-danger: #ef4444;
    
    --eduka-text: #0f172a;           /* Гол текст */
    --eduka-text-muted: #64748b;     /* Туслах текст */
    --eduka-text-light: #94a3b8;
    
    --eduka-bg: #ffffff;
    --eduka-bg-soft: #f8fafc;        /* Бүүр цайвар */
    --eduka-bg-muted: #f1f5f9;
    --eduka-border: #e2e8f0;
    --eduka-border-hover: #cbd5e1;
    
    /* Typography */
    --eduka-font-sans: 'Inter', 'Manrope', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --eduka-font-display: 'Manrope', 'Inter', sans-serif;
    
    /* Spacing scale */
    --eduka-space-xs: 0.5rem;
    --eduka-space-sm: 0.75rem;
    --eduka-space-md: 1rem;
    --eduka-space-lg: 1.5rem;
    --eduka-space-xl: 2rem;
    --eduka-space-2xl: 3rem;
    --eduka-space-3xl: 4rem;
    
    /* Border radius */
    --eduka-radius-sm: 6px;
    --eduka-radius-md: 10px;
    --eduka-radius-lg: 16px;
    --eduka-radius-xl: 24px;
    --eduka-radius-full: 9999px;
    
    /* Shadows */
    --eduka-shadow-sm: 0 1px 2px 0 rgba(15, 23, 42, 0.04);
    --eduka-shadow-md: 0 4px 12px -2px rgba(15, 23, 42, 0.06);
    --eduka-shadow-lg: 0 12px 32px -8px rgba(15, 23, 42, 0.10);
    --eduka-shadow-xl: 0 24px 48px -12px rgba(15, 23, 42, 0.18);
    
    /* Transitions */
    --eduka-transition: 200ms cubic-bezier(0.4, 0, 0.2, 1);
    --eduka-transition-slow: 400ms cubic-bezier(0.4, 0, 0.2, 1);
    
    /* Container */
    --eduka-container: 1240px;
}

/* ==========================================================================
   GLOBAL RESET & BASE
   ========================================================================== */
* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body.wp-singular,
body {
    font-family: var(--eduka-font-sans);
    font-size: 16px;
    line-height: 1.6;
    color: var(--eduka-text);
    background: var(--eduka-bg);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    font-feature-settings: 'kern', 'liga', 'calt';
}

h1, h2, h3, h4, h5, h6,
.h1, .h2, .h3, .h4, .h5, .h6 {
    font-family: var(--eduka-font-display);
    font-weight: 700;
    line-height: 1.2;
    letter-spacing: -0.02em;
    color: var(--eduka-text);
    margin-top: 0;
}

h1 { font-size: clamp(2rem, 4vw, 3rem); }
h2 { font-size: clamp(1.625rem, 3vw, 2.25rem); }
h3 { font-size: clamp(1.25rem, 2vw, 1.5rem); }
h4 { font-size: 1.125rem; }

a {
    color: var(--eduka-primary);
    text-decoration: none;
    transition: color var(--eduka-transition);
}

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

img {
    max-width: 100%;
    height: auto;
    display: block;
}

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

/* ==========================================================================
   LAYOUT — Container & Grid
   ========================================================================== */
.col-full,
.woocommerce-active .site-header .col-full,
.site-content .col-full {
    max-width: var(--eduka-container);
    padding-left: var(--eduka-space-lg);
    padding-right: var(--eduka-space-lg);
    margin-left: auto;
    margin-right: auto;
}

@media (max-width: 768px) {
    .col-full {
        padding-left: var(--eduka-space-md);
        padding-right: var(--eduka-space-md);
    }
}

/* ==========================================================================
   HEADER — Орчин үеийн toлгой
   ========================================================================== */
.site-header {
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: saturate(180%) blur(20px);
    -webkit-backdrop-filter: saturate(180%) blur(20px);
    border-bottom: 1px solid var(--eduka-border);
    padding: var(--eduka-space-md) 0;
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: none;
    transition: box-shadow var(--eduka-transition);
}

.site-header.scrolled {
    box-shadow: var(--eduka-shadow-md);
}

.site-branding {
    margin-bottom: 0;
}

.site-title {
    font-size: 1.5rem;
    font-weight: 800;
    letter-spacing: -0.03em;
    margin: 0;
}

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

.site-search {
    background: var(--eduka-bg-soft);
    border-radius: var(--eduka-radius-full);
    padding: 0;
    box-shadow: none;
    border: 1px solid var(--eduka-border);
    transition: all var(--eduka-transition);
}

.site-search:focus-within {
    border-color: var(--eduka-primary);
    background: var(--eduka-bg);
    box-shadow: 0 0 0 3px var(--eduka-primary-light);
}

.site-search .widget_product_search input[type="search"] {
    background: transparent;
    border: none;
    padding: 0.65rem 1.25rem;
    font-size: 0.95rem;
}

/* Header cart */
.site-header-cart {
    margin: 0;
}

.site-header-cart .cart-contents {
    background: var(--eduka-text);
    color: white;
    padding: 0.65rem 1.5rem;
    border-radius: var(--eduka-radius-full);
    font-weight: 600;
    font-size: 0.875rem;
    transition: transform var(--eduka-transition), background var(--eduka-transition);
}

.site-header-cart .cart-contents:hover {
    background: var(--eduka-primary);
    transform: translateY(-1px);
    color: white;
}

/* ==========================================================================
   NAVIGATION — Гол цэс
   ========================================================================== */
.main-navigation {
    background: transparent;
    border: none;
    margin: 0;
}

.main-navigation ul.menu li a,
.main-navigation div.menu > ul li a {
    color: var(--eduka-text);
    font-weight: 500;
    font-size: 0.95rem;
    padding: 0.5rem 1rem;
    border-radius: var(--eduka-radius-sm);
    transition: all var(--eduka-transition);
    position: relative;
}

.main-navigation ul.menu li a:hover,
.main-navigation ul.menu li.current-menu-item > a {
    background: var(--eduka-bg-soft);
    color: var(--eduka-primary);
}

.main-navigation ul.menu li.current-menu-item > a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 24px;
    height: 2px;
    background: var(--eduka-primary);
    border-radius: 2px;
}

/* Mobile menu */
.menu-toggle {
    background: var(--eduka-bg-soft);
    color: var(--eduka-text);
    border: 1px solid var(--eduka-border);
    border-radius: var(--eduka-radius-md);
    padding: 0.5rem 1rem;
    font-weight: 600;
}

/* ==========================================================================
   BUTTONS — Бүх товчлуурууд
   ========================================================================== */
button,
input[type="button"],
input[type="reset"],
input[type="submit"],
.button,
.added_to_cart,
.widget a.button,
.site-header-cart .widget_shopping_cart a.button,
.woocommerce a.button,
.woocommerce button.button,
.woocommerce input.button,
.woocommerce #respond input#submit,
.woocommerce #content input.button,
.woocommerce-page a.button,
.woocommerce-page button.button,
.woocommerce-page input.button,
.woocommerce-page #respond input#submit,
.woocommerce-page #content input.button {
    background: var(--eduka-text);
    color: white;
    border: none;
    border-radius: var(--eduka-radius-md);
    padding: 0.75rem 1.5rem;
    font-weight: 600;
    font-size: 0.9375rem;
    letter-spacing: 0;
    text-transform: none;
    box-shadow: var(--eduka-shadow-sm);
    transition: all var(--eduka-transition);
    cursor: pointer;
    text-shadow: none;
    line-height: 1.4;
}

button:hover,
.button:hover,
.woocommerce a.button:hover,
.woocommerce button.button:hover,
.woocommerce input.button:hover,
.woocommerce #respond input#submit:hover {
    background: var(--eduka-primary);
    color: white;
    transform: translateY(-2px);
    box-shadow: var(--eduka-shadow-lg);
}

button:active,
.button:active {
    transform: translateY(0);
}

/* Primary/Alt товчлуур — гол үйлдэлд */
.woocommerce a.button.alt,
.woocommerce button.button.alt,
.woocommerce input.button.alt,
.woocommerce #respond input#submit.alt,
.woocommerce-page a.button.alt,
.woocommerce-page button.button.alt,
.woocommerce-page input.button.alt,
.woocommerce-page #respond input#submit.alt {
    background: var(--eduka-primary);
    color: white;
}

.woocommerce a.button.alt:hover,
.woocommerce button.button.alt:hover {
    background: var(--eduka-primary-dark);
}

/* Secondary товчлуур */
.button.secondary,
.woocommerce a.button.secondary {
    background: var(--eduka-bg-soft);
    color: var(--eduka-text);
    border: 1px solid var(--eduka-border);
}

.button.secondary:hover {
    background: white;
    border-color: var(--eduka-text);
}

/* ==========================================================================
   FORMS — Оруулга, талбар
   ========================================================================== */
input[type="text"],
input[type="email"],
input[type="url"],
input[type="password"],
input[type="search"],
input[type="number"],
input[type="tel"],
input[type="date"],
textarea,
select {
    background: var(--eduka-bg);
    border: 1px solid var(--eduka-border);
    border-radius: var(--eduka-radius-md);
    padding: 0.75rem 1rem;
    font-size: 0.9375rem;
    font-family: inherit;
    color: var(--eduka-text);
    transition: all var(--eduka-transition);
    box-shadow: none;
    width: 100%;
}

input:focus,
textarea:focus,
select:focus {
    outline: none;
    border-color: var(--eduka-primary);
    box-shadow: 0 0 0 3px var(--eduka-primary-light);
}

label {
    font-weight: 600;
    font-size: 0.875rem;
    color: var(--eduka-text);
    margin-bottom: 0.375rem;
    display: inline-block;
}

/* ==========================================================================
   PRODUCT CARDS — Бүтээгдэхүүний карт
   ========================================================================== */
ul.products li.product,
.woocommerce ul.products li.product {
    background: var(--eduka-bg);
    border: 1px solid var(--eduka-border);
    border-radius: var(--eduka-radius-lg);
    padding: var(--eduka-space-md);
    transition: all var(--eduka-transition);
    overflow: hidden;
    position: relative;
    margin-bottom: var(--eduka-space-xl);
}

ul.products li.product:hover,
.woocommerce ul.products li.product:hover {
    border-color: var(--eduka-border-hover);
    box-shadow: var(--eduka-shadow-lg);
    transform: translateY(-4px);
}

.woocommerce ul.products li.product a img {
    border-radius: var(--eduka-radius-md);
    margin-bottom: var(--eduka-space-md);
    transition: transform var(--eduka-transition-slow);
    aspect-ratio: 4/3;
    object-fit: cover;
}

.woocommerce ul.products li.product:hover a img {
    transform: scale(1.03);
}

.woocommerce ul.products li.product .woocommerce-loop-product__title {
    font-size: 1.0625rem;
    font-weight: 600;
    color: var(--eduka-text);
    padding: 0;
    margin-bottom: var(--eduka-space-xs);
    line-height: 1.4;
}

.woocommerce ul.products li.product .price {
    color: var(--eduka-primary);
    font-weight: 700;
    font-size: 1.125rem;
    margin-bottom: var(--eduka-space-sm);
}

.woocommerce ul.products li.product .price del {
    color: var(--eduka-text-light);
    font-weight: 400;
    font-size: 0.875rem;
    margin-right: 0.5rem;
}

.woocommerce ul.products li.product .price ins {
    background: transparent;
    text-decoration: none;
    color: var(--eduka-primary);
    font-weight: 700;
}

/* Sale badge */
.woocommerce ul.products li.product .onsale,
.woocommerce span.onsale {
    background: var(--eduka-accent);
    color: white;
    font-weight: 700;
    font-size: 0.75rem;
    padding: 0.25rem 0.75rem;
    border-radius: var(--eduka-radius-full);
    min-height: auto;
    min-width: auto;
    line-height: 1.6;
    top: var(--eduka-space-md);
    right: var(--eduka-space-md);
    left: auto;
    position: absolute;
    box-shadow: var(--eduka-shadow-md);
}

/* Add to cart button on cards */
.woocommerce ul.products li.product .button {
    width: 100%;
    margin-top: var(--eduka-space-sm);
    padding: 0.625rem 1rem;
    font-size: 0.875rem;
}

/* ==========================================================================
   SINGLE PRODUCT — Дэлгэрэнгүй хуудас
   ========================================================================== */
.woocommerce div.product .product_title {
    font-size: clamp(1.5rem, 3vw, 2.25rem);
    margin-bottom: var(--eduka-space-md);
}

.woocommerce div.product p.price,
.woocommerce div.product span.price {
    color: var(--eduka-primary);
    font-size: 1.75rem;
    font-weight: 800;
    margin-bottom: var(--eduka-space-lg);
}

.woocommerce div.product .woocommerce-product-details__short-description {
    color: var(--eduka-text-muted);
    font-size: 1.0625rem;
    line-height: 1.7;
    margin-bottom: var(--eduka-space-xl);
}

.woocommerce div.product .images img {
    border-radius: var(--eduka-radius-lg);
    box-shadow: var(--eduka-shadow-md);
}

/* Product tabs */
.woocommerce div.product .woocommerce-tabs ul.tabs {
    padding: 0;
    margin-bottom: var(--eduka-space-xl);
    border-bottom: 1px solid var(--eduka-border);
}

.woocommerce div.product .woocommerce-tabs ul.tabs::before {
    border-bottom: none;
}

.woocommerce div.product .woocommerce-tabs ul.tabs li {
    background: transparent;
    border: none;
    border-radius: 0;
    padding: 0;
    margin: 0 var(--eduka-space-sm) 0 0;
}

.woocommerce div.product .woocommerce-tabs ul.tabs li a {
    color: var(--eduka-text-muted);
    font-weight: 600;
    padding: var(--eduka-space-sm) var(--eduka-space-md);
    border-bottom: 2px solid transparent;
    transition: all var(--eduka-transition);
    display: inline-block;
}

.woocommerce div.product .woocommerce-tabs ul.tabs li.active a,
.woocommerce div.product .woocommerce-tabs ul.tabs li a:hover {
    color: var(--eduka-primary);
    border-bottom-color: var(--eduka-primary);
}

/* ==========================================================================
   CART & CHECKOUT — Сагс, төлбөр
   ========================================================================== */
.woocommerce table.shop_table {
    border-radius: var(--eduka-radius-lg);
    border-collapse: separate;
    border-spacing: 0;
    border: 1px solid var(--eduka-border);
    overflow: hidden;
}

.woocommerce table.shop_table th {
    background: var(--eduka-bg-soft);
    font-weight: 600;
    color: var(--eduka-text);
    padding: var(--eduka-space-md);
    border-bottom: 1px solid var(--eduka-border);
}

.woocommerce table.shop_table td {
    padding: var(--eduka-space-md);
    border-top: 1px solid var(--eduka-border);
}

.woocommerce-checkout #payment {
    background: var(--eduka-bg-soft);
    border-radius: var(--eduka-radius-lg);
    padding: var(--eduka-space-lg);
}

.woocommerce-checkout #payment ul.payment_methods {
    border-bottom: 1px solid var(--eduka-border);
}

/* ==========================================================================
   MESSAGES — Анхааруулга, амжилт
   ========================================================================== */
.woocommerce-message,
.woocommerce-info,
.woocommerce-error {
    border-radius: var(--eduka-radius-md);
    padding: var(--eduka-space-md) var(--eduka-space-lg);
    border: none;
    font-weight: 500;
}

.woocommerce-message {
    background: #ecfdf5;
    color: #065f46;
    border-top-color: var(--eduka-success);
}

.woocommerce-info {
    background: var(--eduka-primary-light);
    color: var(--eduka-primary-dark);
    border-top-color: var(--eduka-primary);
}

.woocommerce-error {
    background: #fef2f2;
    color: #991b1b;
    border-top-color: var(--eduka-danger);
}

/* ==========================================================================
   FOOTER — Хөл
   ========================================================================== */
.site-footer {
    background: var(--eduka-text);
    color: rgba(255, 255, 255, 0.8);
    padding: var(--eduka-space-3xl) 0 var(--eduka-space-xl);
    margin-top: var(--eduka-space-3xl);
}

.site-footer a {
    color: rgba(255, 255, 255, 0.8);
}

.site-footer a:hover {
    color: white;
}

.site-footer h1, .site-footer h2, .site-footer h3, .site-footer h4 {
    color: white;
    font-size: 1rem;
    margin-bottom: var(--eduka-space-md);
}

/* ==========================================================================
   UTILITIES — Туслах
   ========================================================================== */
.eduka-section {
    padding: var(--eduka-space-3xl) 0;
}

.eduka-section-soft {
    background: var(--eduka-bg-soft);
}

.eduka-text-center { text-align: center; }
.eduka-text-muted { color: var(--eduka-text-muted); }

/* Loading skeleton */
@keyframes eduka-shimmer {
    0% { background-position: -1000px 0; }
    100% { background-position: 1000px 0; }
}

.eduka-skeleton {
    background: linear-gradient(90deg, var(--eduka-bg-muted) 0%, var(--eduka-bg-soft) 50%, var(--eduka-bg-muted) 100%);
    background-size: 1000px 100%;
    animation: eduka-shimmer 2s infinite linear;
    border-radius: var(--eduka-radius-md);
}

/* ==========================================================================
   ACCESSIBILITY
   ========================================================================== */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

:focus-visible {
    outline: 2px solid var(--eduka-primary);
    outline-offset: 2px;
    border-radius: var(--eduka-radius-sm);
}

/* ==========================================================================
   FILE TYPE BADGES — PDF, DOCX, MP4 г.м.
   ========================================================================== */
.eduka-file-badge {
    display: inline-block;
    padding: 0.2rem 0.6rem;
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 0.05em;
    border-radius: var(--eduka-radius-sm);
    background: var(--eduka-bg-muted);
    color: var(--eduka-text-muted);
    margin-bottom: var(--eduka-space-xs);
    text-transform: uppercase;
}

.eduka-file-pdf { background: #fee2e2; color: #991b1b; }
.eduka-file-docx, .eduka-file-doc { background: #dbeafe; color: #1e40af; }
.eduka-file-pptx, .eduka-file-ppt { background: #fed7aa; color: #9a3412; }
.eduka-file-xlsx, .eduka-file-xls { background: #d1fae5; color: #065f46; }
.eduka-file-mp4, .eduka-file-mov, .eduka-file-avi { background: #fce7f3; color: #9f1239; }
.eduka-file-zip, .eduka-file-rar { background: #e0e7ff; color: #3730a3; }

.eduka-price-suffix {
    display: block;
    font-size: 0.8125rem;
    font-weight: 400;
    color: var(--eduka-text-muted);
    margin-top: 0.25rem;
}

/* "Added to cart" feedback */
.button.eduka-added {
    background: var(--eduka-success) !important;
    color: white !important;
}

/* ==========================================================================
   FOOTER CREDIT
   ========================================================================== */
.eduka-footer-credit {
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    padding: var(--eduka-space-lg) 0 0;
    margin-top: var(--eduka-space-xl);
    text-align: center;
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.6);
}

.eduka-footer-credit p { margin: 0; }
.eduka-footer-credit strong { color: white; font-weight: 600; }

/* ==========================================================================
   SCROLL ANIMATIONS
   ========================================================================== */
.eduka-animate {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity var(--eduka-transition-slow), transform var(--eduka-transition-slow);
}

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

/* ==========================================================================
   RESPONSIVE
   ========================================================================== */
@media (max-width: 768px) {
    .site-header { padding: var(--eduka-space-sm) 0; }
    .eduka-section { padding: var(--eduka-space-2xl) 0; }
    .woocommerce ul.products li.product { padding: var(--eduka-space-sm); }
}