/*
Theme Name: Untech Digital Pro
Theme URI: https://untechdigital.com
Author: Untech Digital
Author URI: https://untechdigital.com
Description: A premium, modern WordPress theme designed for software solutions and IT service providers. Features include custom post types for services and solutions, responsive design, and advanced customization options.
Version: 1.0.0
Requires at least: 6.0
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: untech-digital
Tags: business, portfolio, custom-menu, featured-images, flexible-header, custom-background, translation-ready, threaded-comments

Untech Digital Pro, (C) 2025 Untech Digital
Untech Digital Pro is distributed under the terms of the GNU GPL.
*/

/* ==========================================================================
   CSS Variables & Base Styles
   ========================================================================== */

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

:root {
    /* Primary Colors */
    --primary-color: #0066ff;
    --primary-dark: #0052cc;
    --primary-light: #3384ff;
    
    /* Secondary Colors */
    --secondary-color: #6c63ff;
    --secondary-dark: #5548e6;
    
    /* Neutral Colors */
    --dark: #1a1a2e;
    --dark-light: #16213e;
    --gray: #6c757d;
    --gray-light: #f8f9fa;
    --white: #ffffff;
    
    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-heading: 'Poppins', sans-serif;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 6rem;
    
    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.75rem;
    --radius-lg: 1rem;
    --radius-xl: 1.5rem;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    
    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-base: 0.3s ease;
    --transition-slow: 0.5s ease;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-primary);
    font-size: 1rem;
    line-height: 1.6;
    color: var(--dark);
    background-color: var(--white);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

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

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

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* Header & Navigation */
.site-header {
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(10px);
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    box-shadow: var(--shadow-sm);
}

.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem var(--spacing-md);
}

.site-logo {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--primary-color);
}

.main-navigation ul {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.main-navigation a {
    color: var(--dark);
    font-weight: 500;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: var(--white);
    padding: 0.75rem 1.75rem;
    border-radius: var(--radius-lg);
    font-weight: 600;
    transition: all var(--transition-base);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

/* Hero Section */
.hero-section {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    padding: 10rem 0 6rem;
    margin-top: 80px;
    text-align: center;
}

.hero-section h1 {
    color: var(--white);
    font-size: 4rem;
}

.hero-section p {
    color: rgba(255, 255, 255, 0.9);
    font-size: 1.25rem;
}

/* Services Grid */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
    margin-top: var(--spacing-lg);
}

.service-card {
    background: var(--white);
    padding: var(--spacing-lg);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    transition: all var(--transition-base);
}

.service-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
}

/* Footer */
.site-footer {
    background-color: var(--dark);
    color: var(--white);
    padding: var(--spacing-xl) 0 var(--spacing-md);
}

/* Responsive */
@media (max-width: 768px) {
    .main-navigation {
        display: none;
    }
    
    .hero-section h1 {
        font-size: 2.5rem;
    }
}

/* Additional Styles for Enhanced UI */

/* Back to Top Button */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: var(--white);
    border: none;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    box-shadow: var(--shadow-lg);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
    z-index: 999;
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
}

/* Mobile Navigation Styles */
@media (max-width: 768px) {
    .main-navigation {
        position: fixed;
        top: 80px;
        left: 0;
        right: 0;
        background: var(--white);
        box-shadow: var(--shadow-lg);
        transform: translateX(-100%);
        transition: transform var(--transition-base);
        padding: 2rem;
        z-index: 999;
    }
    
    .main-navigation.active {
        transform: translateX(0);
    }
    
    .main-navigation ul {
        flex-direction: column;
        gap: 1.5rem;
    }
    
    .main-navigation .btn-primary {
        width: 100%;
        text-align: center;
        margin-top: 1rem;
    }
    
    .mobile-menu-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translateY(12px);
    }
    
    .mobile-menu-toggle.active span:nth-child(2) {
        opacity: 0;
    }
    
    .mobile-menu-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translateY(-12px);
    }
}

/* Service Link Styling */
.service-link {
    display: inline-block;
    margin-top: 1rem;
    color: var(--primary-color);
    font-weight: 600;
    transition: all var(--transition-base);
}

.service-link:hover {
    transform: translateX(5px);
    color: var(--primary-dark);
}

/* CTA Section */
.cta-section {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: var(--white);
}

.cta-section h2,
.cta-section p {
    color: var(--white);
}

/* Form Styles */
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;
    border: 1px solid #ddd;
    border-radius: var(--radius-md);
    font-family: var(--font-primary);
    font-size: 1rem;
    transition: border-color var(--transition-base);
}

input:focus,
textarea:focus,
select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(0, 102, 255, 0.1);
}

input.error,
textarea.error {
    border-color: var(--accent-danger);
}

/* Comments Styles */
.comment-list {
    margin: 2rem 0;
}

.comment-list li {
    margin-bottom: 2rem;
    padding: 1.5rem;
    background: var(--gray-light);
    border-radius: var(--radius-md);
}

.comment-author {
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.comment-metadata {
    color: var(--gray);
    font-size: 0.9rem;
    margin-bottom: 1rem;
}

.comment-content p {
    margin-bottom: 0.75rem;
}

.reply {
    margin-top: 1rem;
}

.reply a {
    color: var(--primary-color);
    font-weight: 500;
}

/* Pagination */
.pagination {
    display: flex;
    justify-content: center;
    gap: 0.5rem;
    margin-top: 3rem;
}

.pagination .page-numbers {
    padding: 0.75rem 1.25rem;
    border: 1px solid #ddd;
    border-radius: var(--radius-md);
    color: var(--dark);
    transition: all var(--transition-base);
}

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

/* Widget Styles */
.widget {
    margin-bottom: 2rem;
}

.widget-title {
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid var(--primary-color);
}

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

.widget ul li {
    padding: 0.5rem 0;
    border-bottom: 1px solid #eee;
}

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

/* Loading Animation */
body:not(.loaded) {
    overflow: hidden;
}

/* Print Styles */
@media print {
    .site-header,
    .site-footer,
    .back-to-top,
    .mobile-menu-toggle,
    .comment-form {
        display: none;
    }
}

/* Screen Reader Text */
.screen-reader-text {
    border: 0;
    clip: rect(1px, 1px, 1px, 1px);
    clip-path: inset(50%);
    height: 1px;
    margin: -1px;
    overflow: hidden;
    padding: 0;
    position: absolute;
    width: 1px;
    word-wrap: normal;
}

.screen-reader-text:focus {
    background-color: var(--gray-light);
    border-radius: var(--radius-sm);
    box-shadow: var(--shadow-md);
    clip: auto;
    clip-path: none;
    color: var(--dark);
    display: block;
    font-size: 0.875rem;
    font-weight: 700;
    height: auto;
    left: 5px;
    line-height: normal;
    padding: 15px 23px 14px;
    text-decoration: none;
    top: 5px;
    width: auto;
    z-index: 100000;
}

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

/* Selection */
::selection {
    background: var(--primary-color);
    color: var(--white);
}

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