/*
Theme Name: ModernBiz
Theme URI: https://example.com/modernbiz
Author: Your Name
Author URI: https://example.com
Description: A modern, minimal business and corporate WordPress theme with Customizer support, responsive design, and custom Gutenberg block patterns.
Version: 1.0.0
License: GNU General Public License v2 or later
License URI: http://www.gnu.org/licenses/gpl-2.0.html
Text Domain: modernbiz
Tags: blog, custom-colors, custom-logo, custom-menu, featured-images, full-width-template, one-column, right-sidebar, rtl-language-support, sticky-post, theme-options, threaded-comments, translation-ready, block-styles, wide-blocks

ModernBiz is a clean, professional theme designed for business and corporate websites.
*/

/* ===== CSS Variables ===== */
:root {
    --color-primary: #2563eb;
    --color-primary-dark: #1d4ed8;
    --color-primary-light: #dbeafe;
    --color-secondary: #1e293b;
    --color-accent: #f59e0b;
    --color-text: #334155;
    --color-text-light: #64748b;
    --color-heading: #0f172a;
    --color-bg: #ffffff;
    --color-bg-alt: #f8fafc;
    --color-bg-dark: #0f172a;
    --color-border: #e2e8f0;
    --color-white: #ffffff;
    --color-success: #10b981;
    --color-error: #ef4444;

    --font-heading: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;

    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;
    --spacing-3xl: 6rem;

    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;

    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.1);

    --container: 1200px;
    --container-narrow: 800px;
    --transition: 0.2s ease;
}

/* ===== Reset & Base ===== */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 62.5%;
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: var(--font-body);
    font-size: 1.6rem;
    line-height: 1.7;
    color: var(--color-text);
    background-color: var(--color-bg);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

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

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

/* ===== Typography ===== */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.2;
    color: var(--color-heading);
    margin-bottom: var(--spacing-sm);
}

h1 { font-size: 3.6rem; }
h2 { font-size: 3rem; }
h3 { font-size: 2.4rem; }
h4 { font-size: 2rem; }
h5 { font-size: 1.8rem; }
h6 { font-size: 1.6rem; }

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

ul, ol {
    margin: 0 0 var(--spacing-sm) var(--spacing-md);
}

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

.container--narrow {
    max-width: var(--container-narrow);
}

/* ===== Site Header ===== */
.site-header {
    background: var(--color-white);
    border-bottom: 1px solid var(--color-border);
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(10px);
    background: rgba(255, 255, 255, 0.95);
}

.site-header__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-sm) 0;
}

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

.site-logo img {
    max-height: 40px;
    width: auto;
}

.site-title {
    font-size: 2rem;
    font-weight: 700;
    margin: 0;
}

.site-title a {
    color: var(--color-heading);
}

.site-description {
    font-size: 1.3rem;
    color: var(--color-text-light);
    margin: 0;
}

/* ===== Navigation ===== */
.main-navigation ul {
    display: flex;
    list-style: none;
    margin: 0;
    gap: var(--spacing-xs);
}

.main-navigation a {
    display: block;
    padding: var(--spacing-xs) var(--spacing-sm);
    color: var(--color-text);
    font-weight: 500;
    border-radius: var(--radius-sm);
    transition: all var(--transition);
}

.main-navigation a:hover,
.main-navigation a:focus,
.main-navigation .current-menu-item a {
    color: var(--color-primary);
    background: var(--color-primary-light);
}

.main-navigation .sub-menu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    background: var(--color-white);
    box-shadow: var(--shadow-lg);
    border-radius: var(--radius-md);
    min-width: 200px;
    padding: var(--spacing-xs) 0;
    flex-direction: column;
    gap: 0;
}

.main-navigation li:hover > .sub-menu,
.main-navigation li:focus-within > .sub-menu {
    display: flex;
}

.main-navigation .sub-menu a {
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: 0;
}

.menu-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-xs);
    color: var(--color-heading);
}

.menu-toggle svg {
    width: 24px;
    height: 24px;
}

/* ===== Hero Section ===== */
.hero {
    background: linear-gradient(135deg, var(--color-bg-dark) 0%, #1e3a5f 100%);
    color: var(--color-white);
    padding: var(--spacing-3xl) 0;
    text-align: center;
}

.hero__title {
    color: var(--color-white);
    font-size: 4.2rem;
    margin-bottom: var(--spacing-sm);
}

.hero__subtitle {
    font-size: 1.8rem;
    color: rgba(255, 255, 255, 0.8);
    max-width: 600px;
    margin: 0 auto var(--spacing-lg);
}

.hero__actions {
    display: flex;
    gap: var(--spacing-sm);
    justify-content: center;
    flex-wrap: wrap;
}

/* ===== Buttons ===== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm) var(--spacing-lg);
    font-size: 1.5rem;
    font-weight: 600;
    border-radius: var(--radius-md);
    border: 2px solid transparent;
    cursor: pointer;
    transition: all var(--transition);
    text-decoration: none;
}

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

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

.btn--secondary {
    background: transparent;
    color: var(--color-white);
    border-color: rgba(255, 255, 255, 0.3);
}

.btn--secondary:hover,
.btn--secondary:focus {
    background: rgba(255, 255, 255, 0.1);
    color: var(--color-white);
    border-color: rgba(255, 255, 255, 0.5);
}

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

.btn--outline:hover,
.btn--outline:focus {
    background: var(--color-primary);
    color: var(--color-white);
}

/* ===== Sections ===== */
.section {
    padding: var(--spacing-3xl) 0;
}

.section--alt {
    background: var(--color-bg-alt);
}

.section--dark {
    background: var(--color-bg-dark);
    color: var(--color-white);
}

.section--dark h2,
.section--dark h3 {
    color: var(--color-white);
}

.section__header {
    text-align: center;
    max-width: 600px;
    margin: 0 auto var(--spacing-2xl);
}

.section__title {
    font-size: 3.2rem;
    margin-bottom: var(--spacing-sm);
}

.section__subtitle {
    font-size: 1.7rem;
    color: var(--color-text-light);
}

.section--dark .section__subtitle {
    color: rgba(255, 255, 255, 0.7);
}

/* ===== Grid Layouts ===== */
.grid {
    display: grid;
    gap: var(--spacing-lg);
}

.grid--2 {
    grid-template-columns: repeat(2, 1fr);
}

.grid--3 {
    grid-template-columns: repeat(3, 1fr);
}

.grid--4 {
    grid-template-columns: repeat(4, 1fr);
}

/* ===== Cards ===== */
.card {
    background: var(--color-white);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--color-border);
    transition: all var(--transition);
}

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

.card__icon {
    width: 48px;
    height: 48px;
    background: var(--color-primary-light);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-md);
    color: var(--color-primary);
}

.card__icon svg {
    width: 24px;
    height: 24px;
}

.card__title {
    font-size: 1.8rem;
    margin-bottom: var(--spacing-xs);
}

.card__text {
    color: var(--color-text-light);
    font-size: 1.5rem;
    margin: 0;
}

/* ===== Content Area ===== */
.site-content {
    padding: var(--spacing-2xl) 0;
}

.content-area {
    max-width: var(--container-narrow);
    margin: 0 auto;
}

/* ===== Posts ===== */
.post {
    margin-bottom: var(--spacing-2xl);
    padding-bottom: var(--spacing-2xl);
    border-bottom: 1px solid var(--color-border);
}

.post:last-child {
    border-bottom: none;
}

.post__title {
    font-size: 2.8rem;
    margin-bottom: var(--spacing-xs);
}

.post__title a {
    color: var(--color-heading);
}

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

.post__meta {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    font-size: 1.4rem;
    color: var(--color-text-light);
    margin-bottom: var(--spacing-md);
}

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

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

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

.post__excerpt {
    font-size: 1.6rem;
}

.post__read-more {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-weight: 600;
    margin-top: var(--spacing-sm);
}

/* ===== Page Templates ===== */
.page-header {
    background: var(--color-bg-alt);
    padding: var(--spacing-2xl) 0;
    text-align: center;
    border-bottom: 1px solid var(--color-border);
}

.page-header__title {
    font-size: 3.6rem;
    margin-bottom: var(--spacing-xs);
}

.page-header__description {
    font-size: 1.7rem;
    color: var(--color-text-light);
    max-width: 600px;
    margin: 0 auto;
}

/* ===== Sidebar ===== */
.widget-area {
    margin-top: var(--spacing-2xl);
}

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

.widget__title {
    font-size: 1.8rem;
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-sm);
    border-bottom: 2px solid var(--color-primary);
}

.widget ul {
    list-style: none;
    margin: 0;
}

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

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

/* ===== Comments ===== */
.comments-area {
    margin-top: var(--spacing-2xl);
    padding-top: var(--spacing-2xl);
    border-top: 1px solid var(--color-border);
}

.comment-list {
    list-style: none;
    margin: 0;
}

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

.comment__author {
    font-weight: 600;
    color: var(--color-heading);
}

.comment__date {
    font-size: 1.3rem;
    color: var(--color-text-light);
}

.comment-form input[type="text"],
.comment-form input[type="email"],
.comment-form input[type="url"],
.comment-form textarea {
    width: 100%;
    padding: var(--spacing-sm);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    font-family: inherit;
    font-size: 1.5rem;
    margin-bottom: var(--spacing-sm);
}

.comment-form input[type="submit"] {
    background: var(--color-primary);
    color: var(--color-white);
    border: none;
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--radius-md);
    font-weight: 600;
    cursor: pointer;
    transition: background var(--transition);
}

.comment-form input[type="submit"]:hover {
    background: var(--color-primary-dark);
}

/* ===== Site Footer ===== */
.site-footer {
    background: var(--color-bg-dark);
    color: rgba(255, 255, 255, 0.7);
    padding: var(--spacing-3xl) 0 var(--spacing-lg);
}

.site-footer a {
    color: rgba(255, 255, 255, 0.7);
}

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

.site-footer__grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: var(--spacing-2xl);
    margin-bottom: var(--spacing-2xl);
}

.site-footer__brand {
    color: var(--color-white);
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
}

.site-footer__title {
    color: var(--color-white);
    font-size: 1.6rem;
    margin-bottom: var(--spacing-md);
}

.site-footer ul {
    list-style: none;
    margin: 0;
}

.site-footer ul li {
    margin-bottom: var(--spacing-xs);
}

.site-footer__bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: var(--spacing-lg);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    font-size: 1.4rem;
}

/* ===== Gutenberg Blocks ===== */
.wp-block-button__link {
    background: var(--color-primary);
    color: var(--color-white);
    border-radius: var(--radius-md);
    padding: var(--spacing-sm) var(--spacing-lg);
    font-weight: 600;
    transition: all var(--transition);
}

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

.wp-block-button.is-style-outline .wp-block-button__link {
    background: transparent;
    color: var(--color-primary);
    border: 2px solid var(--color-primary);
}

.wp-block-button.is-style-outline .wp-block-button__link:hover {
    background: var(--color-primary);
    color: var(--color-white);
}

.wp-block-quote {
    border-left: 4px solid var(--color-primary);
    padding-left: var(--spacing-md);
    font-style: italic;
    color: var(--color-text-light);
}

.wp-block-quote cite {
    display: block;
    margin-top: var(--spacing-sm);
    font-style: normal;
    font-weight: 600;
    color: var(--color-heading);
}

.wp-block-pullquote {
    border-top: 4px solid var(--color-primary);
    border-bottom: 4px solid var(--color-primary);
    padding: var(--spacing-lg) 0;
    text-align: center;
    font-size: 2rem;
    font-style: italic;
}

.wp-block-separator {
    border: none;
    border-top: 1px solid var(--color-border);
    margin: var(--spacing-2xl) auto;
    max-width: 100px;
}

.wp-block-image img {
    border-radius: var(--radius-md);
}

.wp-block-cover {
    border-radius: var(--radius-lg);
}

/* ===== Block Patterns ===== */
.pattern-hero {
    text-align: center;
    padding: var(--spacing-3xl) 0;
}

.pattern-hero h2 {
    font-size: 4rem;
    margin-bottom: var(--spacing-md);
}

.pattern-hero p {
    font-size: 1.8rem;
    color: var(--color-text-light);
    max-width: 600px;
    margin: 0 auto var(--spacing-lg);
}

.pattern-services {
    padding: var(--spacing-3xl) 0;
}

.pattern-services .card {
    text-align: center;
}

.pattern-cta {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    color: var(--color-white);
    text-align: center;
    padding: var(--spacing-3xl) 0;
    border-radius: var(--radius-xl);
    margin: var(--spacing-2xl) 0;
}

.pattern-cta h2 {
    color: var(--color-white);
    font-size: 3.2rem;
}

.pattern-cta p {
    color: rgba(255, 255, 255, 0.9);
    font-size: 1.7rem;
    max-width: 500px;
    margin: 0 auto var(--spacing-lg);
}

.pattern-cta .btn--secondary {
    border-color: rgba(255, 255, 255, 0.5);
}

/* ===== Utility Classes ===== */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.mt-0 { margin-top: 0; }
.mb-0 { margin-bottom: 0; }

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

/* ===== Responsive ===== */
@media (max-width: 1024px) {
    .grid--4 {
        grid-template-columns: repeat(2, 1fr);
    }

    .site-footer__grid {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 768px) {
    h1 { font-size: 2.8rem; }
    h2 { font-size: 2.4rem; }
    h3 { font-size: 2rem; }

    .hero__title {
        font-size: 3rem;
    }

    .grid--2,
    .grid--3,
    .grid--4 {
        grid-template-columns: 1fr;
    }

    .menu-toggle {
        display: block;
    }

    .main-navigation {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--color-white);
        border-bottom: 1px solid var(--color-border);
        padding: var(--spacing-sm);
        box-shadow: var(--shadow-lg);
    }

    .main-navigation.is-open {
        display: block;
    }

    .main-navigation ul {
        flex-direction: column;
        gap: 0;
    }

    .main-navigation a {
        padding: var(--spacing-sm);
        border-radius: var(--radius-sm);
    }

    .main-navigation .sub-menu {
        position: static;
        box-shadow: none;
        padding-left: var(--spacing-md);
        display: none;
    }

    .main-navigation li:hover > .sub-menu {
        display: none;
    }

    .main-navigation li.is-open > .sub-menu {
        display: flex;
    }

    .site-footer__grid {
        grid-template-columns: 1fr;
    }

    .site-footer__bottom {
        flex-direction: column;
        text-align: center;
    }

    .section {
        padding: var(--spacing-2xl) 0;
    }

    .hero {
        padding: var(--spacing-2xl) 0;
    }
}

@media (max-width: 480px) {
    .hero__title {
        font-size: 2.4rem;
    }

    .hero__subtitle {
        font-size: 1.6rem;
    }

    .btn {
        width: 100%;
        justify-content: center;
    }

    .hero__actions {
        flex-direction: column;
    }
}

/* ===== Print ===== */
@media print {
    .site-header,
    .site-footer,
    .comments-area,
    .widget-area {
        display: none;
    }

    body {
        font-size: 12pt;
        color: #000;
    }

    a {
        color: #000;
        text-decoration: underline;
    }
}