/*
Theme Name: Featherlight
Theme URI: https://github.com/google-deepmind/featherlight-theme
Author: Team_KIT
Author URI: https://github.com/google-deepmind/antigravity
Description: A premium, ultra-lightweight, future-proof, and fully responsive WordPress theme. Engineered for maximum performance with out-of-the-box support for WooCommerce, Elementor, and modern block-based blogging.
Version: 1.0.0
License: GNU GPLv2 or later
License URI: http://www.gnu.org/licenses/gpl-2.0.html
Text Domain: featherlight
*/

/* ==========================================================================
   1. Design System & CSS Custom Properties
   ========================================================================== */
:root {
    /* Color Palette */
    --color-primary: #4f46e5;       /* Indigo */
    --color-primary-hover: #4338ca;
    --color-secondary: #0ea5e9;     /* Sky Blue */
    --color-accent: #f43f5e;        /* Rose */
    --color-success: #10b981;       /* Emerald */
    --color-warning: #f59e0b;       /* Amber */
    
    /* Neutrals */
    --color-bg: #f8fafc;            /* Slate 50 */
    --color-surface: #ffffff;
    --color-text-main: #0f172a;     /* Slate 900 */
    --color-text-muted: #64748b;    /* Slate 500 */
    --color-border: #e2e8f0;        /* Slate 200 */
    --color-header-bg: rgba(255, 255, 255, 0.8);
    
    /* Typography */
    --font-heading: 'Outfit', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    --font-body: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    
    /* Spacing & Sizing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2.5rem;
    --spacing-xl: 4rem;
    
    /* Layout */
    --container-width: 1200px;
    --container-width-narrow: 800px;
    
    /* Border Radius & Shadows */
    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 10px 25px -5px rgba(15, 23, 42, 0.08), 0 8px 10px -6px rgba(15, 23, 42, 0.08);
    --shadow-lg: 0 20px 40px -15px rgba(15, 23, 42, 0.15);
    
    /* Transitions */
    --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-normal: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Dark Mode Preference Support */
@media (prefers-color-scheme: dark) {
    :root {
        --color-bg: #0b0f19;
        --color-surface: #131b2e;
        --color-text-main: #f8fafc;
        --color-text-muted: #94a3b8;
        --color-border: #1e293b;
        --color-header-bg: rgba(19, 27, 46, 0.85);
        --shadow-md: 0 10px 25px -5px rgba(0, 0, 0, 0.3);
        --shadow-lg: 0 20px 40px -15px rgba(0, 0, 0, 0.5);
    }
}

/* ==========================================================================
   2. Reset & Core Typography
   ========================================================================== */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    background-color: var(--color-bg);
    color: var(--color-text-main);
    font-family: var(--font-body);
    font-size: 16px;
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    transition: background-color var(--transition-normal), color var(--transition-normal);
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.25;
    color: var(--color-text-main);
}

h1 { font-size: 2.5rem; margin-bottom: var(--spacing-md); }
h2 { font-size: 2rem; margin-bottom: var(--spacing-sm); }
h3 { font-size: 1.5rem; margin-bottom: var(--spacing-sm); }
h4 { font-size: 1.25rem; margin-bottom: var(--spacing-sm); }

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

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

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

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

/* Buttons */
.button, button, input[type="submit"] {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem 1.5rem;
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 0.95rem;
    border-radius: var(--radius-sm);
    border: none;
    cursor: pointer;
    background-color: var(--color-primary);
    color: #ffffff;
    transition: background-color var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast);
}

.button:hover, button:hover, input[type="submit"]:hover {
    background-color: var(--color-primary-hover);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(79, 70, 229, 0.2);
}

.button:active, button:active, input[type="submit"]:active {
    transform: translateY(0);
}

/* ==========================================================================
   3. Page Layout Structures
   ========================================================================== */
.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.container-narrow {
    max-width: var(--container-width-narrow);
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* Header & Navigation */
.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background-color: var(--color-header-bg);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--color-border);
    transition: background-color var(--transition-normal);
}

.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 80px;
}

.site-branding .logo-text {
    font-family: var(--font-heading);
    font-weight: 800;
    font-size: 1.5rem;
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: var(--spacing-md);
}

.nav-menu a {
    color: var(--color-text-main);
    font-weight: 500;
    font-size: 0.95rem;
    padding: 0.5rem 0;
    position: relative;
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--color-primary);
    transition: width var(--transition-fast);
}

.nav-menu a:hover::after,
.nav-menu .current-menu-item > a::after {
    width: 100%;
}

.menu-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--color-text-main);
    font-size: 1.8rem;
    line-height: 1;
    cursor: pointer;
    outline: none;
}

@media (max-width: 768px) {
    .menu-toggle {
        display: block;
    }

    .main-navigation ul {
        display: none;
        flex-direction: column;
        position: absolute;
        top: 80px;
        left: 0;
        width: 100%;
        background-color: var(--color-surface);
        border-bottom: 1px solid var(--color-border);
        padding: var(--spacing-md);
        gap: var(--spacing-sm);
        box-shadow: var(--shadow-md);
        z-index: 1000;
    }

    .main-navigation ul.nav-menu-active {
        display: flex;
        animation: menuFadeIn 0.25s cubic-bezier(0.4, 0, 0.2, 1) forwards;
    }

    .main-navigation ul a {
        display: block;
        padding: 0.5rem 0;
        font-size: 1.1rem;
        border-bottom: 1px solid var(--color-border);
    }

    .main-navigation ul li:last-child a {
        border-bottom: none;
    }

    .main-navigation ul a::after {
        display: none;
    }
}

@keyframes menuFadeIn {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Hero Section (Home page template default style) */
.hero {
    padding: var(--spacing-xl) 0;
    text-align: center;
    background: radial-gradient(circle at 10% 20%, rgba(79, 70, 229, 0.05) 0%, rgba(14, 165, 233, 0.05) 90%);
    border-bottom: 1px solid var(--color-border);
    margin-bottom: var(--spacing-xl);
}

.hero h1 {
    font-size: 3.5rem;
    font-weight: 800;
    letter-spacing: -1px;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--color-text-muted);
    max-width: 600px;
    margin: 0 auto var(--spacing-md);
}

/* Two-column Blog Layout */
.layout-with-sidebar {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
    padding: var(--spacing-lg) 0;
}

@media (min-width: 992px) {
    .layout-with-sidebar {
        grid-template-columns: 2.5fr 1fr;
    }
}

/* ==========================================================================
   4. Blog & Post Loops
   ========================================================================== */
.post-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
}

@media (min-width: 768px) {
    .post-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

.card {
    background-color: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: transform var(--transition-fast), box-shadow var(--transition-fast), border-color var(--transition-fast);
    display: flex;
    flex-direction: column;
}

.card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
    border-color: rgba(79, 70, 229, 0.3);
}

.card-image img {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.card-content {
    padding: var(--spacing-md);
    display: flex;
    flex-direction: column;
    flex-grow: 1;
}

.post-meta {
    font-size: 0.85rem;
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-xs);
    display: flex;
    gap: var(--spacing-xs);
}

.post-meta a {
    color: var(--color-text-muted);
}

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

.card-title {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-xs);
}

.card-excerpt {
    font-size: 0.95rem;
    margin-bottom: var(--spacing-md);
    flex-grow: 1;
}

/* Sidebar Widgets */
.widget-area {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.widget {
    background-color: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
}

.widget-title {
    font-size: 1.1rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    border-bottom: 2px solid var(--color-border);
    padding-bottom: var(--spacing-xs);
    margin-bottom: var(--spacing-md);
}

.widget ul {
    list-style: none;
}

.widget ul li {
    padding: 0.5rem 0;
    border-bottom: 1px dashed var(--color-border);
}

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

/* ==========================================================================
   5. Single Post & Blogging Pages
   ========================================================================== */
.post-detail {
    background-color: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.post-detail-header {
    margin-bottom: var(--spacing-md);
}

.post-detail-header h1 {
    font-size: 2.5rem;
}

.post-featured-image {
    margin-bottom: var(--spacing-md);
    border-radius: var(--radius-sm);
    overflow: hidden;
}

.post-content {
    font-size: 1.05rem;
    line-height: 1.8;
}

.post-content p {
    margin-bottom: 1.5rem;
    color: var(--color-text-main);
}

.post-tags, .post-categories {
    margin-top: var(--spacing-md);
    padding-top: var(--spacing-sm);
    border-top: 1px solid var(--color-border);
    font-size: 0.9rem;
    color: var(--color-text-muted);
}

.post-tags a, .post-categories a {
    display: inline-block;
    background-color: var(--color-bg);
    color: var(--color-text-main);
    padding: 0.25rem 0.75rem;
    border-radius: 50px;
    margin-right: 0.5rem;
    transition: background-color var(--transition-fast), color var(--transition-fast);
}

.post-tags a:hover, .post-categories a:hover {
    background-color: var(--color-primary);
    color: #ffffff;
}

/* Author Bio Card */
.author-bio {
    display: flex;
    gap: var(--spacing-md);
    background-color: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    margin: var(--spacing-lg) 0;
}

.author-avatar img {
    border-radius: 50%;
}

.author-details h4 {
    margin-bottom: var(--spacing-xs);
}

/* ==========================================================================
   6. Comments Styling
   ========================================================================== */
.comments-area {
    margin-top: var(--spacing-lg);
    background-color: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: var(--spacing-lg);
}

.comments-title, .comment-reply-title {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-md);
}

.comment-list {
    list-style: none;
    margin-bottom: var(--spacing-lg);
}

.comment-body {
    padding: var(--spacing-md) 0;
    border-bottom: 1px solid var(--color-border);
}

.comment-meta {
    display: flex;
    justify-content: space-between;
    font-size: 0.85rem;
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-xs);
}

.comment-metadata a {
    color: var(--color-text-muted);
}

.comment-content p {
    font-size: 0.95rem;
    color: var(--color-text-main);
    margin-bottom: 0;
}

/* Comment Form */
#commentform {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

#commentform label {
    font-size: 0.9rem;
    font-weight: 600;
}

#commentform textarea,
#commentform input[type="text"],
#commentform input[type="email"] {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    background-color: var(--color-bg);
    color: var(--color-text-main);
    font-family: var(--font-body);
}

#commentform textarea:focus,
#commentform input[type="text"]:focus,
#commentform input[type="email"]:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 2px rgba(79, 70, 229, 0.15);
}

/* ==========================================================================
   7. WooCommerce Specific Styling (Pure CSS Integration)
   ========================================================================== */
.woocommerce-products-header {
    margin-bottom: var(--spacing-lg);
    text-align: center;
}

/* Product list layout */
ul.products {
    display: grid !important;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)) !important;
    gap: var(--spacing-md) !important;
    list-style: none !important;
    padding: 0 !important;
    margin: 0 0 var(--spacing-lg) 0 !important;
}

ul.products li.product {
    background-color: var(--color-surface) !important;
    border: 1px solid var(--color-border) !important;
    border-radius: var(--radius-md) !important;
    padding: var(--spacing-md) !important;
    transition: transform var(--transition-fast), box-shadow var(--transition-fast) !important;
    display: flex !important;
    flex-direction: column !important;
    align-items: center !important;
    text-align: center !important;
    position: relative !important;
    width: 100% !important;
    margin: 0 !important;
}

ul.products li.product:hover {
    transform: translateY(-4px) !important;
    box-shadow: var(--shadow-md) !important;
}

ul.products li.product img {
    border-radius: var(--radius-sm) !important;
    margin-bottom: var(--spacing-sm) !important;
    width: 100% !important;
    height: 180px !important;
    object-fit: cover !important;
}

.woocommerce-loop-product__title {
    font-family: var(--font-heading) !important;
    font-size: 1.1rem !important;
    margin-bottom: var(--spacing-xs) !important;
    color: var(--color-text-main) !important;
}

.price {
    font-size: 1.1rem !important;
    font-weight: 700 !important;
    color: var(--color-primary) !important;
    margin-bottom: var(--spacing-sm) !important;
}

.price del {
    color: var(--color-text-muted) !important;
    font-weight: 400 !important;
    font-size: 0.9rem !important;
    margin-right: 4px !important;
}

.price ins {
    text-decoration: none !important;
}

/* WooCommerce sale badge */
.onsale {
    position: absolute !important;
    top: var(--spacing-sm) !important;
    left: var(--spacing-sm) !important;
    background-color: var(--color-accent) !important;
    color: #ffffff !important;
    font-family: var(--font-heading) !important;
    font-weight: 700 !important;
    font-size: 0.8rem !important;
    text-transform: uppercase !important;
    padding: 0.25rem 0.6rem !important;
    border-radius: var(--radius-sm) !important;
    z-index: 10 !important;
    min-height: auto !important;
    min-width: auto !important;
    line-height: 1 !important;
}

/* Loop Add to Cart Button */
ul.products li.product .button {
    margin-top: auto !important;
    width: 100% !important;
    font-size: 0.85rem !important;
    padding: 0.6rem 1rem !important;
}

/* Single Product Page */
.product-single-wrapper {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
    padding: var(--spacing-lg) 0;
}

@media (min-width: 768px) {
    .product-single-wrapper {
        grid-template-columns: 1fr 1fr;
    }
}

.summary.entry-summary {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.summary.entry-summary .product_title {
    font-size: 2.25rem;
}

.summary.entry-summary .price {
    font-size: 1.5rem !important;
}

.quantity input.qty {
    width: 60px;
    height: 40px;
    text-align: center;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    margin-right: var(--spacing-sm);
    background-color: var(--color-bg);
    color: var(--color-text-main);
}

.single_add_to_cart_button {
    height: 40px;
    padding: 0 2rem !important;
}

/* WooCommerce Tab Panel */
.woocommerce-tabs {
    margin-top: var(--spacing-xl);
    border-top: 1px solid var(--color-border);
    padding-top: var(--spacing-lg);
}

.woocommerce-tabs ul.tabs {
    display: flex;
    list-style: none;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
    border-bottom: 1px solid var(--color-border);
}

.woocommerce-tabs ul.tabs li {
    padding: 0.5rem 1rem;
    font-family: var(--font-heading);
    font-weight: 600;
}

.woocommerce-tabs ul.tabs li.active {
    border-bottom: 2px solid var(--color-primary);
    color: var(--color-primary);
}

/* Cart Table Styling */
table.shop_table {
    width: 100%;
    border-collapse: collapse;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    overflow: hidden;
    margin-bottom: var(--spacing-lg);
}

table.shop_table th {
    background-color: var(--color-border);
    padding: var(--spacing-sm);
    text-align: left;
    font-family: var(--font-heading);
    font-weight: 700;
    color: var(--color-text-main);
}

table.shop_table td {
    padding: var(--spacing-sm);
    border-bottom: 1px solid var(--color-border);
}

/* Mini Cart Widget styles */
.widget_shopping_cart_content {
    font-size: 0.9rem;
}

/* ==========================================================================
   8. Footer Layout & Widgets
   ========================================================================== */
.site-footer {
    background-color: var(--color-surface);
    border-top: 1px solid var(--color-border);
    padding: var(--spacing-xl) 0 var(--spacing-md);
    margin-top: var(--spacing-xl);
    transition: background-color var(--transition-normal);
}

.footer-widgets {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

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

.footer-bottom {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    align-items: center;
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--color-border);
    gap: var(--spacing-sm);
}

@media (min-width: 768px) {
    .footer-bottom {
        flex-direction: row;
    }
}

.footer-info {
    font-size: 0.85rem;
    color: var(--color-text-muted);
}

.footer-nav {
    display: flex;
    list-style: none;
    gap: var(--spacing-md);
    font-size: 0.85rem;
}

.footer-nav a {
    color: var(--color-text-muted);
}

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

/* ==========================================================================
   9. Screen Reader / Accessibility Standard Utilities
   ========================================================================== */
.screen-reader-text {
    border: 0;
    clear: both;
    clip: rect(1px, 1px, 1px, 1px);
    -webkit-clip-path: inset(50%);
    clip-path: inset(50%);
    height: 1px;
    margin: -1px;
    overflow: hidden;
    padding: 0;
    position: absolute !important;
    width: 1px;
    word-wrap: normal !important;
}

.screen-reader-text:focus {
    background-color: var(--color-bg);
    border-radius: var(--radius-sm);
    box-shadow: var(--shadow-md);
    color: var(--color-text-main);
    display: block;
    font-size: 0.9rem;
    font-weight: 700;
    height: auto;
    left: 5px;
    line-height: normal;
    padding: 15px 23px;
    position: absolute;
    text-decoration: none;
    top: 5px;
    width: auto;
    z-index: 100000;
}

/* ==========================================================================
   10. Breadcrumbs Layout & Styling (Advanced SEO Navigation)
   ========================================================================== */
.breadcrumbs {
    background-color: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
    padding: 0.75rem 0;
    font-size: 0.85rem;
    color: var(--color-text-muted);
}

.breadcrumbs .container {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
}

.breadcrumbs a {
    color: var(--color-text-muted);
    font-weight: 500;
    transition: color var(--transition-fast);
}

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

.breadcrumbs .sep {
    margin: 0 var(--spacing-xs);
    color: var(--color-text-muted);
    opacity: 0.5;
}

.breadcrumbs .current {
    color: var(--color-text-main);
    font-weight: 600;
}