/*
Theme Name: MultiBuilder Theme
Theme URI: https://yoursite.com/multibuilder-theme
Author: MultiBuilder Team
Author URI: https://yoursite.com
Description: A powerful, multipurpose WordPress theme inspired by premium website builders. Features include a flexible header/footer builder, mega menu support, WooCommerce integration, custom Elementor widgets, one-click demo import, and comprehensive design customization options. Build any type of website — business, portfolio, agency, or online store.
Version: 1.0.0
Tested up to: 6.5
Requires PHP: 7.4
License: GNU General Public License v2 or later
License URI: https://www.gnu.org/licenses/gpl-2.0.html
Text Domain: multibuilder
Tags: custom-logo, custom-menu, featured-images, full-width-template, one-column, two-columns, theme-options, translation-ready, blog, e-commerce, portfolio

MultiBuilder Theme © 2024
*/

/* ==========================================================================
   CSS Custom Properties (Design Tokens)
   ========================================================================== */

:root {
    /* Colors — defaults, overridden by Customizer */
    --mb-color-primary: #6c5ce7;
    --mb-color-secondary: #00cec9;
    --mb-color-text: #2d3436;
    --mb-color-text-light: #636e72;
    --mb-color-link: #6c5ce7;
    --mb-color-link-hover: #5a4bd1;
    --mb-color-bg: #ffffff;
    --mb-color-bg-alt: #f8f9fa;
    --mb-color-border: #e9ecef;
    --mb-color-white: #ffffff;
    --mb-color-black: #1a1a2e;

    /* Typography */
    --mb-font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --mb-font-heading: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --mb-font-size-base: 16px;
    --mb-font-size-xs: 0.75rem;
    --mb-font-size-sm: 0.875rem;
    --mb-font-size-md: 1rem;
    --mb-font-size-lg: 1.125rem;
    --mb-font-size-xl: 1.25rem;
    --mb-font-size-2xl: 1.5rem;
    --mb-font-size-3xl: 1.875rem;
    --mb-font-size-4xl: 2.25rem;
    --mb-font-size-5xl: 3rem;
    --mb-line-height-base: 1.7;
    --mb-line-height-heading: 1.2;
    --mb-font-weight-normal: 400;
    --mb-font-weight-medium: 500;
    --mb-font-weight-semibold: 600;
    --mb-font-weight-bold: 700;

    /* Spacing */
    --mb-spacing-xs: 0.25rem;
    --mb-spacing-sm: 0.5rem;
    --mb-spacing-md: 1rem;
    --mb-spacing-lg: 1.5rem;
    --mb-spacing-xl: 2rem;
    --mb-spacing-2xl: 3rem;
    --mb-spacing-3xl: 4rem;
    --mb-spacing-4xl: 6rem;

    /* Layout */
    --mb-container-width: 1200px;
    --mb-sidebar-width: 300px;
    --mb-header-height: 80px;

    /* Borders & Radius */
    --mb-border-radius-sm: 4px;
    --mb-border-radius-md: 8px;
    --mb-border-radius-lg: 12px;
    --mb-border-radius-xl: 16px;
    --mb-border-radius-full: 50%;

    /* Shadows */
    --mb-shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08);
    --mb-shadow-md: 0 4px 12px rgba(0, 0, 0, 0.1);
    --mb-shadow-lg: 0 8px 30px rgba(0, 0, 0, 0.12);
    --mb-shadow-xl: 0 20px 60px rgba(0, 0, 0, 0.15);

    /* Transitions */
    --mb-transition-fast: 150ms ease;
    --mb-transition-base: 250ms ease;
    --mb-transition-slow: 400ms ease;
    --mb-transition-spring: 500ms cubic-bezier(0.34, 1.56, 0.64, 1);
}

/* ==========================================================================
   Reset & Base
   ========================================================================== */

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

html {
    font-size: var(--mb-font-size-base);
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: var(--mb-font-body);
    font-size: var(--mb-font-size-md);
    font-weight: var(--mb-font-weight-normal);
    line-height: var(--mb-line-height-base);
    color: var(--mb-color-text);
    background-color: var(--mb-color-bg);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

/* ==========================================================================
   Typography
   ========================================================================== */

h1, h2, h3, h4, h5, h6 {
    font-family: var(--mb-font-heading);
    font-weight: var(--mb-font-weight-bold);
    line-height: var(--mb-line-height-heading);
    color: var(--mb-color-black);
    margin-bottom: var(--mb-spacing-md);
}

h1 { font-size: var(--mb-font-size-5xl); }
h2 { font-size: var(--mb-font-size-4xl); }
h3 { font-size: var(--mb-font-size-3xl); }
h4 { font-size: var(--mb-font-size-2xl); }
h5 { font-size: var(--mb-font-size-xl); }
h6 { font-size: var(--mb-font-size-lg); }

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

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

a:hover,
a:focus {
    color: var(--mb-color-link-hover);
}

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

ul, ol {
    list-style: none;
}

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

blockquote {
    border-left: 4px solid var(--mb-color-primary);
    padding: var(--mb-spacing-lg) var(--mb-spacing-xl);
    margin: var(--mb-spacing-xl) 0;
    background-color: var(--mb-color-bg-alt);
    border-radius: 0 var(--mb-border-radius-md) var(--mb-border-radius-md) 0;
    font-style: italic;
    color: var(--mb-color-text-light);
}

pre, code {
    font-family: 'JetBrains Mono', 'Fira Code', monospace;
    font-size: var(--mb-font-size-sm);
}

code {
    background-color: var(--mb-color-bg-alt);
    padding: 0.15em 0.4em;
    border-radius: var(--mb-border-radius-sm);
}

pre {
    background-color: var(--mb-color-black);
    color: var(--mb-color-white);
    padding: var(--mb-spacing-lg);
    border-radius: var(--mb-border-radius-md);
    overflow-x: auto;
}

pre code {
    background: none;
    padding: 0;
    color: inherit;
}

hr {
    border: none;
    border-top: 1px solid var(--mb-color-border);
    margin: var(--mb-spacing-2xl) 0;
}

/* ==========================================================================
   Layout & Container
   ========================================================================== */

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

.mb-container--wide {
    max-width: 1400px;
}

.mb-container--full {
    max-width: 100%;
    padding-left: 0;
    padding-right: 0;
}

/* Content + Sidebar Layout */
.mb-site-content {
    display: flex;
    gap: var(--mb-spacing-2xl);
    padding-top: var(--mb-spacing-3xl);
    padding-bottom: var(--mb-spacing-3xl);
}

.mb-content-area {
    flex: 1;
    min-width: 0;
}

.mb-sidebar {
    flex: 0 0 var(--mb-sidebar-width);
}

/* No sidebar */
.mb-layout-no-sidebar .mb-site-content {
    display: block;
}

.mb-layout-no-sidebar .mb-content-area {
    max-width: 800px;
    margin: 0 auto;
}

/* Sidebar left */
.mb-layout-sidebar-left .mb-site-content {
    flex-direction: row-reverse;
}

/* ==========================================================================
   Skip to Content (Accessibility)
   ========================================================================== */

.mb-skip-link {
    position: absolute;
    top: -100%;
    left: var(--mb-spacing-md);
    z-index: 100000;
    padding: var(--mb-spacing-sm) var(--mb-spacing-lg);
    background-color: var(--mb-color-primary);
    color: var(--mb-color-white);
    font-weight: var(--mb-font-weight-semibold);
    border-radius: 0 0 var(--mb-border-radius-md) var(--mb-border-radius-md);
    transition: top var(--mb-transition-fast);
}

.mb-skip-link:focus {
    top: 0;
    color: var(--mb-color-white);
}

/* ==========================================================================
   Buttons
   ========================================================================== */

.mb-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--mb-spacing-sm);
    padding: 0.75rem 1.75rem;
    font-family: var(--mb-font-body);
    font-size: var(--mb-font-size-md);
    font-weight: var(--mb-font-weight-semibold);
    line-height: 1;
    text-decoration: none;
    border: 2px solid transparent;
    border-radius: var(--mb-border-radius-md);
    cursor: pointer;
    transition: all var(--mb-transition-base);
    position: relative;
    overflow: hidden;
}

.mb-btn::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(255,255,255,0.15), transparent);
    opacity: 0;
    transition: opacity var(--mb-transition-base);
}

.mb-btn:hover::before {
    opacity: 1;
}

.mb-btn--primary {
    background: linear-gradient(135deg, var(--mb-color-primary), #8b7cf7);
    color: var(--mb-color-white);
    box-shadow: 0 4px 15px rgba(108, 92, 231, 0.35);
}

.mb-btn--primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 25px rgba(108, 92, 231, 0.45);
    color: var(--mb-color-white);
}

.mb-btn--secondary {
    background: transparent;
    color: var(--mb-color-primary);
    border-color: var(--mb-color-primary);
}

.mb-btn--secondary:hover {
    background: var(--mb-color-primary);
    color: var(--mb-color-white);
    transform: translateY(-2px);
}

.mb-btn--sm {
    padding: 0.5rem 1.25rem;
    font-size: var(--mb-font-size-sm);
}

.mb-btn--lg {
    padding: 1rem 2.25rem;
    font-size: var(--mb-font-size-lg);
}

/* ==========================================================================
   Cards
   ========================================================================== */

.mb-card {
    background: var(--mb-color-white);
    border-radius: var(--mb-border-radius-lg);
    box-shadow: var(--mb-shadow-sm);
    overflow: hidden;
    transition: all var(--mb-transition-base);
}

.mb-card:hover {
    box-shadow: var(--mb-shadow-lg);
    transform: translateY(-4px);
}

.mb-card__image {
    width: 100%;
    aspect-ratio: 16 / 9;
    object-fit: cover;
}

.mb-card__content {
    padding: var(--mb-spacing-lg);
}

.mb-card__title {
    font-size: var(--mb-font-size-xl);
    margin-bottom: var(--mb-spacing-sm);
}

.mb-card__meta {
    display: flex;
    gap: var(--mb-spacing-md);
    font-size: var(--mb-font-size-sm);
    color: var(--mb-color-text-light);
    margin-bottom: var(--mb-spacing-md);
}

.mb-card__excerpt {
    color: var(--mb-color-text-light);
    margin-bottom: var(--mb-spacing-lg);
}

/* ==========================================================================
   Posts Grid
   ========================================================================== */

.mb-posts-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
    gap: var(--mb-spacing-xl);
}

/* ==========================================================================
   Pagination
   ========================================================================== */

.mb-pagination {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--mb-spacing-sm);
    padding: var(--mb-spacing-2xl) 0;
}

.mb-pagination .page-numbers {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 44px;
    height: 44px;
    padding: 0 var(--mb-spacing-md);
    font-weight: var(--mb-font-weight-medium);
    color: var(--mb-color-text);
    background: var(--mb-color-white);
    border: 1px solid var(--mb-color-border);
    border-radius: var(--mb-border-radius-md);
    transition: all var(--mb-transition-fast);
}

.mb-pagination .page-numbers:hover,
.mb-pagination .page-numbers.current {
    background: var(--mb-color-primary);
    color: var(--mb-color-white);
    border-color: var(--mb-color-primary);
}

/* ==========================================================================
   Forms
   ========================================================================== */

input[type="text"],
input[type="email"],
input[type="url"],
input[type="password"],
input[type="search"],
input[type="number"],
input[type="tel"],
textarea,
select {
    width: 100%;
    padding: 0.75rem 1rem;
    font-family: var(--mb-font-body);
    font-size: var(--mb-font-size-md);
    color: var(--mb-color-text);
    background-color: var(--mb-color-white);
    border: 1px solid var(--mb-color-border);
    border-radius: var(--mb-border-radius-md);
    transition: border-color var(--mb-transition-fast), box-shadow var(--mb-transition-fast);
    -webkit-appearance: none;
}

input:focus,
textarea:focus,
select:focus {
    outline: none;
    border-color: var(--mb-color-primary);
    box-shadow: 0 0 0 3px rgba(108, 92, 231, 0.15);
}

label {
    display: block;
    margin-bottom: var(--mb-spacing-xs);
    font-weight: var(--mb-font-weight-medium);
    font-size: var(--mb-font-size-sm);
}

/* ==========================================================================
   Widget Styles
   ========================================================================== */

.widget {
    margin-bottom: var(--mb-spacing-xl);
    padding: var(--mb-spacing-lg);
    background: var(--mb-color-white);
    border-radius: var(--mb-border-radius-lg);
    box-shadow: var(--mb-shadow-sm);
}

.widget-title {
    font-size: var(--mb-font-size-lg);
    font-weight: var(--mb-font-weight-bold);
    margin-bottom: var(--mb-spacing-md);
    padding-bottom: var(--mb-spacing-sm);
    border-bottom: 2px solid var(--mb-color-primary);
}

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

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

.widget ul li a {
    color: var(--mb-color-text);
    font-weight: var(--mb-font-weight-medium);
}

.widget ul li a:hover {
    color: var(--mb-color-primary);
    padding-left: var(--mb-spacing-sm);
}

/* ==========================================================================
   Comments
   ========================================================================== */

.mb-comments {
    margin-top: var(--mb-spacing-3xl);
}

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

.mb-comments .comment {
    padding: var(--mb-spacing-lg);
    margin-bottom: var(--mb-spacing-md);
    background: var(--mb-color-bg-alt);
    border-radius: var(--mb-border-radius-lg);
}

.mb-comments .comment .children {
    margin-top: var(--mb-spacing-md);
    padding-left: var(--mb-spacing-xl);
    list-style: none;
}

.mb-comment-author {
    display: flex;
    align-items: center;
    gap: var(--mb-spacing-md);
    margin-bottom: var(--mb-spacing-sm);
}

.mb-comment-author img {
    border-radius: var(--mb-border-radius-full);
}

.comment-respond {
    margin-top: var(--mb-spacing-2xl);
}

.comment-form textarea {
    min-height: 150px;
    resize: vertical;
}

.comment-form .submit {
    margin-top: var(--mb-spacing-md);
}

/* ==========================================================================
   404 Page
   ========================================================================== */

.mb-404 {
    text-align: center;
    padding: var(--mb-spacing-4xl) var(--mb-spacing-lg);
}

.mb-404__number {
    font-size: 8rem;
    font-weight: var(--mb-font-weight-bold);
    background: linear-gradient(135deg, var(--mb-color-primary), var(--mb-color-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
    margin-bottom: var(--mb-spacing-lg);
}

.mb-404__title {
    font-size: var(--mb-font-size-3xl);
    margin-bottom: var(--mb-spacing-md);
}

.mb-404__description {
    font-size: var(--mb-font-size-lg);
    color: var(--mb-color-text-light);
    margin-bottom: var(--mb-spacing-2xl);
    max-width: 500px;
    margin-left: auto;
    margin-right: auto;
}

.mb-404 .search-form {
    max-width: 400px;
    margin: 0 auto var(--mb-spacing-xl);
    display: flex;
    gap: var(--mb-spacing-sm);
}

.mb-404 .search-form .search-field {
    flex: 1;
}

/* ==========================================================================
   Utilities
   ========================================================================== */

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

.mb-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;
}

/* ==========================================================================
   Responsive Breakpoints
   ========================================================================== */

/* Tablet */
@media (max-width: 768px) {
    :root {
        --mb-font-size-5xl: 2.25rem;
        --mb-font-size-4xl: 1.875rem;
        --mb-font-size-3xl: 1.5rem;
    }

    .mb-site-content {
        flex-direction: column;
    }

    .mb-sidebar {
        flex: none;
        width: 100%;
    }

    .mb-layout-sidebar-left .mb-site-content {
        flex-direction: column;
    }

    .mb-posts-grid {
        grid-template-columns: 1fr;
    }

    .mb-404__number {
        font-size: 5rem;
    }
}

/* Mobile */
@media (max-width: 480px) {
    :root {
        --mb-font-size-5xl: 1.875rem;
        --mb-font-size-4xl: 1.5rem;
        --mb-font-size-3xl: 1.25rem;
        --mb-spacing-3xl: 2.5rem;
        --mb-spacing-4xl: 3.5rem;
    }

    .mb-container {
        padding-left: var(--mb-spacing-md);
        padding-right: var(--mb-spacing-md);
    }
}

/* Reduced Motion */
@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;
    }
}