/* =====================================================
   PEBEKA CONTRACTOR WEBSITE - MAIN STYLES
   ===================================================== */

/* CSS Variables */
:root {
    /* Colors based on Pebeka logo */
    --primary-color: #F4B942;      /* Gold/Yellow from logo */
    --primary-dark: #E5A53A;       /* Darker gold */
    --secondary-color: #1A1A1A;    /* Black from logo */
    --accent-color: #2C2C2C;       /* Dark gray */
    --text-color: #333333;         /* Main text */
    --text-light: #666666;         /* Light text */
    --text-white: #FFFFFF;         /* White text */
    --bg-light: #F8F9FA;          /* Light background */
    --bg-dark: #1A1A1A;           /* Dark background */
    --border-color: #E5E5E5;      /* Border color */
    --shadow-light: 0 2px 10px rgba(0, 0, 0, 0.1);
    --shadow-medium: 0 5px 20px rgba(0, 0, 0, 0.15);
    --shadow-heavy: 0 10px 40px rgba(0, 0, 0, 0.2);
    
    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-size-xs: 0.75rem;      /* 12px */
    --font-size-sm: 0.875rem;     /* 14px */
    --font-size-base: 1rem;       /* 16px */
    --font-size-lg: 1.125rem;     /* 18px */
    --font-size-xl: 1.25rem;      /* 20px */
    --font-size-2xl: 1.5rem;      /* 24px */
    --font-size-3xl: 1.875rem;    /* 30px */
    --font-size-4xl: 2.25rem;     /* 36px */
    --font-size-5xl: 3rem;        /* 48px */
    
    /* Spacing */
    --spacing-xs: 0.5rem;         /* 8px */
    --spacing-sm: 0.75rem;        /* 12px */
    --spacing-md: 1rem;           /* 16px */
    --spacing-lg: 1.5rem;         /* 24px */
    --spacing-xl: 2rem;           /* 32px */
    --spacing-2xl: 3rem;          /* 48px */
    --spacing-3xl: 4rem;          /* 64px */
    
    /* Transitions */
    --transition-fast: 0.2s ease-in-out;
    --transition-normal: 0.3s ease-in-out;
    --transition-slow: 0.5s ease-in-out;
    
    /* Border radius */
    --border-radius-sm: 4px;
    --border-radius-md: 8px;
    --border-radius-lg: 12px;
    --border-radius-xl: 16px;
    --border-radius-full: 50%;
}

/* Reset & Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-primary);
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--text-white);
    overflow-x: hidden;
}

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

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

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

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

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

/* Utility Classes */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

.row {
    display: flex;
    flex-wrap: wrap;
    margin: 0 -var(--spacing-md);
}

.col-lg-6 {
    flex: 0 0 50%;
    max-width: 50%;
    padding: 0 var(--spacing-md);
}

.text-center {
    text-align: center;
}

.text-highlight {
    color: var(--primary-color);
    position: relative;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-sm) var(--spacing-xl);
    font-size: var(--font-size-base);
    font-weight: 600;
    text-decoration: none;
    border: 2px solid transparent;
    border-radius: var(--border-radius-lg);
    cursor: pointer;
    transition: var(--transition-normal);
    position: relative;
    overflow: hidden;
    min-height: 50px;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: var(--text-white);
    box-shadow: var(--shadow-medium);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-heavy);
    color: var(--text-white);
}

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

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

.btn-block {
    width: 100%;
}

/* Loading Screen */
#loading {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--secondary-color);
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: opacity 0.5s ease-in-out;
}

.loading-content {
    text-align: center;
}

.loading-logo img {
    width: 120px;
    height: auto;
    margin-bottom: var(--spacing-lg);
    border-radius: var(--border-radius-lg);
}

.loading-spinner {
    width: 40px;
    height: 40px;
    border: 4px solid rgba(244, 185, 66, 0.3);
    border-top: 4px solid var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Header */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: rgba(26, 26, 26, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    transition: var(--transition-normal);
}

.navbar {
    padding: var(--spacing-md) 0;
}

.navbar .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-brand .logo {
    height: 45px;
    width: auto;
    border-radius: var(--border-radius-md);
}

.nav-menu {
    display: flex;
    align-items: center;
}

.nav-list {
    display: flex;
    list-style: none;
    margin: 0;
    padding: 0;
    gap: var(--spacing-xl);
}

.nav-link {
    color: var(--text-white);
    font-weight: 500;
    font-size: var(--font-size-base);
    position: relative;
    padding: var(--spacing-xs) 0;
    transition: var(--transition-fast);
}

.nav-link:hover,
.nav-link.active {
    color: var(--primary-color);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-color);
    transition: var(--transition-fast);
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 100%;
}

/* Special styling for catalogue menu */
.catalogue-link {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: var(--secondary-color) !important;
    padding: var(--spacing-xs) var(--spacing-md) !important;
    border-radius: var(--border-radius-md);
    font-weight: 600;
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    position: relative;
    overflow: hidden;
    z-index: 1;
    box-shadow: 0 4px 15px rgba(244, 185, 66, 0.3);
}

.catalogue-link::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, #FFD700, #FFA500);
    z-index: -1;
    transform: scale(0);
    transition: transform 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    border-radius: var(--border-radius-md);
}

.catalogue-link:hover {
    transform: translateY(-4px) scale(1.05);
    box-shadow: 0 8px 25px rgba(244, 185, 66, 0.4);
    color: var(--secondary-color) !important;
}

.catalogue-link:hover::before {
    transform: scale(1);
}

.catalogue-link::after {
    display: none;
}

.catalogue-link i {
    margin-right: var(--spacing-xs);
    font-size: var(--font-size-sm);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 4px;
}

.nav-toggle span {
    width: 25px;
    height: 3px;
    background: var(--text-white);
    transition: var(--transition-fast);
}

/* Hero Section */
.hero {
    position: relative;
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        linear-gradient(135deg, rgba(26, 26, 26, 0.6) 0%, rgba(44, 44, 44, 0.4) 100%), 
        url('../images/hero.webp');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    background-attachment: fixed;
    z-index: -2;
}

.hero-bg::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grain" width="100" height="100" patternUnits="userSpaceOnUse"><circle cx="25" cy="25" r="1" fill="%23F4B942" opacity="0.05"/><circle cx="75" cy="75" r="1" fill="%23F4B942" opacity="0.05"/><circle cx="50" cy="10" r="1" fill="%23F4B942" opacity="0.03"/><circle cx="10" cy="60" r="1" fill="%23F4B942" opacity="0.03"/><circle cx="90" cy="40" r="1" fill="%23F4B942" opacity="0.03"/></pattern></defs><rect width="100" height="100" fill="url(%23grain)"/></svg>');
    z-index: -1;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(26, 26, 26, 0.3);
    z-index: -1;
}

.hero-content {
    text-align: center;
    color: var(--text-white);
    max-width: 800px;
    z-index: 1;
}

.hero-title {
    font-size: var(--font-size-5xl);
    font-weight: 800;
    margin-bottom: var(--spacing-lg);
    line-height: 1.1;
}

.hero-description {
    font-size: var(--font-size-xl);
    margin-bottom: var(--spacing-2xl);
    color: rgba(255, 255, 255, 0.9);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.hero-buttons {
    display: flex;
    gap: var(--spacing-lg);
    justify-content: center;
    margin-bottom: var(--spacing-3xl);
    flex-wrap: wrap;
}

.hero-stats {
    display: flex;
    justify-content: center;
    gap: var(--spacing-3xl);
    flex-wrap: wrap;
}

.stat-item {
    text-align: center;
}

.stat-number {
    font-size: var(--font-size-4xl);
    font-weight: 800;
    color: var(--primary-color);
    margin-bottom: var(--spacing-xs);
}

.stat-label {
    font-size: var(--font-size-sm);
    color: rgba(255, 255, 255, 0.8);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.scroll-indicator {
    position: absolute;
    bottom: var(--spacing-xl);
    left: 50%;
    transform: translateX(-50%);
    cursor: pointer;
}

.scroll-indicator span {
    display: block;
    width: 2px;
    height: 30px;
    background: var(--primary-color);
    animation: scroll-bounce 2s infinite;
}

@keyframes scroll-bounce {
    0%, 20% { transform: translateY(0); opacity: 0; }
    50% { opacity: 1; }
    80%, 100% { transform: translateY(10px); opacity: 0; }
}

/* Section Base Styles */
section {
    padding: var(--spacing-3xl) 0;
    position: relative;
}

.section-header {
    margin-bottom: var(--spacing-3xl);
}

.section-subtitle {
    display: inline-block;
    font-size: var(--font-size-sm);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: var(--primary-color);
    margin-bottom: var(--spacing-sm);
    position: relative;
}

.section-subtitle::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 40px;
    height: 2px;
    background: var(--primary-color);
}

.section-title {
    color: var(--secondary-color);
    margin-bottom: var(--spacing-lg);
}

.section-description {
    font-size: var(--font-size-lg);
    color: var(--text-light);
    max-width: 700px;
    margin: 0 auto;
}

/* About Section */
.about {
    background: var(--bg-light);
}

.about-content {
    padding-right: var(--spacing-xl);
}

.about-features {
    margin-top: var(--spacing-2xl);
}

.feature-item {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
    padding: var(--spacing-lg);
    background: var(--text-white);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-light);
    transition: var(--transition-normal);
}

.feature-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-medium);
}

.feature-icon {
    flex-shrink: 0;
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: var(--text-white);
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--border-radius-lg);
    font-size: var(--font-size-xl);
}

.feature-content h4 {
    color: var(--secondary-color);
    margin-bottom: var(--spacing-xs);
}

.feature-content p {
    color: var(--text-light);
    margin-bottom: 0;
}

.about-image {
    position: relative;
    height: 500px;
}

.image-wrapper {
    position: relative;
    width: 100%;
    height: 100%;
    border-radius: var(--border-radius-xl);
    overflow: hidden;
}

.image-bg {
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    background-image: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 200 200"><path d="M20,20 L180,20 L180,180 L20,180 Z" fill="none" stroke="rgba(255,255,255,0.1)" stroke-width="2"/><path d="M60,60 L140,60 L140,140 L60,140 Z" fill="none" stroke="rgba(255,255,255,0.1)" stroke-width="1"/></svg>');
    background-size: 100px 100px;
    position: relative;
}

.image-bg::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 80px;
    height: 80px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--border-radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Services Section */
.services {
    background: var(--text-white);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--spacing-xl);
    margin-top: var(--spacing-2xl);
}

.service-item {
    background: var(--text-white);
    padding: var(--spacing-2xl);
    border-radius: var(--border-radius-xl);
    box-shadow: var(--shadow-light);
    border: 1px solid var(--border-color);
    transition: var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.service-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--primary-dark));
    transform: scaleX(0);
    transition: var(--transition-normal);
}

.service-item:hover::before {
    transform: scaleX(1);
}

.service-item:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-heavy);
}

.service-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: var(--text-white);
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--border-radius-lg);
    font-size: var(--font-size-2xl);
    margin-bottom: var(--spacing-lg);
    position: relative;
}

.service-icon::after {
    content: '';
    position: absolute;
    top: -4px;
    left: -4px;
    right: -4px;
    bottom: -4px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    border-radius: var(--border-radius-lg);
    z-index: -1;
    opacity: 0.3;
    filter: blur(8px);
}

.service-title {
    color: var(--secondary-color);
    margin-bottom: var(--spacing-md);
}

.service-description {
    color: var(--text-light);
    margin-bottom: var(--spacing-lg);
    line-height: 1.7;
}

.service-features {
    list-style: none;
    padding: 0;
}

.service-features li {
    position: relative;
    padding-left: var(--spacing-lg);
    margin-bottom: var(--spacing-xs);
    color: var(--text-light);
    font-size: var(--font-size-sm);
}

.service-features li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--primary-color);
    font-weight: 600;
}

/* Projects Section */
.projects {
    background: var(--bg-light);
}

.project-filters {
    display: flex;
    justify-content: center;
    gap: var(--spacing-md);
    margin: var(--spacing-2xl) 0;
    flex-wrap: wrap;
}

.filter-btn {
    background: var(--text-white);
    color: var(--text-color);
    border: 2px solid var(--border-color);
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--border-radius-lg);
    cursor: pointer;
    transition: var(--transition-fast);
    font-weight: 500;
}

.filter-btn:hover,
.filter-btn.active {
    background: var(--primary-color);
    color: var(--text-white);
    border-color: var(--primary-color);
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--spacing-xl);
}

.project-item {
    position: relative;
    height: 300px;
    border-radius: var(--border-radius-xl);
    overflow: hidden;
    cursor: pointer;
    transition: var(--transition-normal);
}

.project-item:hover {
    transform: translateY(-5px);
}

.project-image {
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--accent-color) 0%, var(--secondary-color) 100%);
    position: relative;
}

.project-image::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 300 200"><rect width="300" height="200" fill="url(%23pattern)"/><defs><pattern id="pattern" width="60" height="60" patternUnits="userSpaceOnUse"><rect width="60" height="60" fill="none" stroke="rgba(244,185,66,0.1)" stroke-width="1"/><circle cx="30" cy="30" r="2" fill="rgba(244,185,66,0.2)"/></pattern></defs></svg>');
    opacity: 0.3;
}

.project-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to top, rgba(26, 26, 26, 0.9) 0%, rgba(26, 26, 26, 0.3) 50%, transparent 100%);
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    padding: var(--spacing-xl);
    color: var(--text-white);
    opacity: 0;
    transition: var(--transition-normal);
}

.project-item:hover .project-overlay {
    opacity: 1;
}

.project-title {
    color: var(--text-white);
    margin-bottom: var(--spacing-xs);
    font-size: var(--font-size-xl);
}

.project-category {
    color: var(--primary-color);
    font-size: var(--font-size-sm);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: var(--spacing-md);
}

.project-buttons {
    display: flex;
    gap: var(--spacing-sm);
}

.btn-view {
    width: 45px;
    height: 45px;
    background: var(--primary-color);
    color: var(--text-white);
    border: none;
    border-radius: var(--border-radius-lg);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition-fast);
}

.btn-view:hover {
    background: var(--primary-dark);
    transform: scale(1.1);
}

/* Contact Section */
.contact {
    background: var(--text-white);
}

.contact-info {
    padding-right: var(--spacing-xl);
}

.contact-description {
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-2xl);
}

.contact-details {
    margin-bottom: var(--spacing-2xl);
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.contact-icon {
    flex-shrink: 0;
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: var(--text-white);
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--border-radius-lg);
    font-size: var(--font-size-lg);
}

.contact-content h4 {
    color: var(--secondary-color);
    margin-bottom: var(--spacing-xs);
}

.contact-content p {
    color: var(--text-light);
    margin-bottom: 0;
    line-height: 1.6;
}

.social-links {
    display: flex;
    gap: var(--spacing-md);
}

.social-link {
    width: 45px;
    height: 45px;
    background: var(--bg-light);
    color: var(--text-color);
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--border-radius-lg);
    transition: var(--transition-fast);
}

.social-link:hover {
    background: var(--primary-color);
    color: var(--text-white);
    transform: translateY(-3px);
}

/* Contact Form */
.contact-form {
    background: var(--bg-light);
    padding: var(--spacing-2xl);
    border-radius: var(--border-radius-xl);
    box-shadow: var(--shadow-light);
}

.form {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.form-row {
    display: flex;
    gap: var(--spacing-lg);
}

.form-group {
    flex: 1;
    display: flex;
    flex-direction: column;
}

.form-group label {
    font-weight: 600;
    color: var(--secondary-color);
    margin-bottom: var(--spacing-xs);
    font-size: var(--font-size-sm);
}

.form-group input,
.form-group select,
.form-group textarea {
    padding: var(--spacing-md);
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius-md);
    font-size: var(--font-size-base);
    transition: var(--transition-fast);
    background: var(--text-white);
    color: var(--text-color);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(244, 185, 66, 0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

/* Footer */
.footer {
    background: var(--secondary-color);
    color: var(--text-white);
    padding: var(--spacing-3xl) 0 var(--spacing-lg);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-2xl);
    margin-bottom: var(--spacing-2xl);
}

.footer-section h3.footer-title {
    color: var(--primary-color);
    margin-bottom: var(--spacing-lg);
    font-size: var(--font-size-xl);
}

.footer-logo img {
    width: 120px;
    height: auto;
    margin-bottom: var(--spacing-lg);
    border-radius: var(--border-radius-md);
}

.footer-description {
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: var(--spacing-lg);
    line-height: 1.7;
}

.footer-social {
    display: flex;
    gap: var(--spacing-md);
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: var(--spacing-sm);
}

.footer-links a {
    color: rgba(255, 255, 255, 0.8);
    transition: var(--transition-fast);
}

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

.footer-contact p {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
    color: rgba(255, 255, 255, 0.8);
}

.footer-contact i {
    color: var(--primary-color);
    width: 20px;
}

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-lg);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.6);
}

/* Back to Top */
.back-to-top {
    position: fixed;
    bottom: var(--spacing-lg);
    right: var(--spacing-lg);
    width: 50px;
    height: 50px;
    background: var(--primary-color);
    color: var(--text-white);
    border: none;
    border-radius: var(--border-radius-full);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-medium);
    transition: var(--transition-normal);
    opacity: 0;
    visibility: hidden;
    z-index: 1000;
}

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

.back-to-top:hover {
    background: var(--primary-dark);
    transform: translateY(-3px);
    box-shadow: var(--shadow-heavy);
}

/* Modal */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(26, 26, 26, 0.9);
    z-index: 2000;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition-normal);
}

.modal.show {
    opacity: 1;
    visibility: visible;
}

.modal-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    cursor: pointer;
}

.modal-content {
    background: var(--text-white);
    max-width: 800px;
    width: 90%;
    max-height: 80vh;
    border-radius: var(--border-radius-xl);
    position: relative;
    overflow: hidden;
    transform: scale(0.8);
    transition: var(--transition-normal);
}

.modal.show .modal-content {
    transform: scale(1);
}

.modal-close {
    position: absolute;
    top: var(--spacing-lg);
    right: var(--spacing-lg);
    width: 40px;
    height: 40px;
    background: var(--primary-color);
    color: var(--text-white);
    border: none;
    border-radius: var(--border-radius-full);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1;
    transition: var(--transition-fast);
}

.modal-close:hover {
    background: var(--primary-dark);
    transform: rotate(90deg);
}

.modal-body {
    padding: var(--spacing-2xl);
}

/* Responsive Design */
@media (max-width: 768px) {
    :root {
        --font-size-5xl: 2.5rem;
        --font-size-4xl: 2rem;
        --font-size-3xl: 1.5rem;
        --spacing-3xl: 2rem;
    }
    
    .container {
        padding: 0 var(--spacing-md);
    }
    
    .nav-menu {
        position: fixed;
        top: 0;
        left: -100%;
        width: 280px;
        height: 100vh;
        background: var(--secondary-color);
        flex-direction: column;
        justify-content: center;
        transition: var(--transition-normal);
        z-index: 1001;
    }
    
    .nav-menu.show {
        left: 0;
    }
    
    .nav-list {
        flex-direction: column;
        gap: var(--spacing-lg);
        text-align: center;
    }
    
    .catalogue-link {
        margin: var(--spacing-md) var(--spacing-lg);
        text-align: center;
        display: inline-block;
    }
    
    .nav-toggle {
        display: flex;
    }
    
    .nav-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }
    
    .nav-toggle.active span:nth-child(2) {
        opacity: 0;
    }
    
    .nav-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(7px, -6px);
    }
    
    .hero-title {
        font-size: var(--font-size-4xl);
    }
    
    .hero-description {
        font-size: var(--font-size-base);
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .hero-stats {
        gap: var(--spacing-lg);
    }
    
    .col-lg-6 {
        flex: 0 0 100%;
        max-width: 100%;
    }
    
    .about-content {
        padding-right: 0;
        margin-bottom: var(--spacing-2xl);
    }
    
    .services-grid {
        grid-template-columns: 1fr;
    }
    
    .projects-grid {
        grid-template-columns: 1fr;
    }
    
    .contact-info {
        padding-right: 0;
        margin-bottom: var(--spacing-2xl);
    }
    
    .form-row {
        flex-direction: column;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .hero-buttons {
        gap: var(--spacing-md);
    }
    
    .btn {
        min-height: 45px;
        font-size: var(--font-size-sm);
    }
    
    .stat-number {
        font-size: var(--font-size-3xl);
    }
    
    .service-item {
        padding: var(--spacing-lg);
    }
    
    .contact-form {
        padding: var(--spacing-lg);
    }
}

/* Print Styles */
@media print {
    .header,
    .back-to-top,
    .nav-toggle,
    .modal {
        display: none !important;
    }
    
    body {
        font-size: 12pt;
        line-height: 1.4;
        color: #000;
        background: #fff;
    }
    
    .hero {
        height: auto;
        padding: 2rem 0;
    }
    
    section {
        padding: 1rem 0;
        break-inside: avoid;
    }
}