/* UNA Constructions - Modern Professional Stylesheet */
/* File: assets/css/style.css */

/* CSS Variables */
:root {
    --primary-color: #1e40af;
    --secondary-color: #f97316;
    --accent-color: #0ea5e9;
    --success-color: #10b981;
    --danger-color: #ef4444;
    --warning-color: #f59e0b;
    --dark-color: #1f2937;
    --light-color: #f8fafc;
    --gray-50: #f9fafb;
    --gray-100: #f3f4f6;
    --gray-200: #e5e7eb;
    --gray-300: #d1d5db;
    --gray-400: #9ca3af;
    --gray-500: #6b7280;
    --gray-600: #4b5563;
    --gray-700: #374151;
    --gray-800: #1f2937;
    --gray-900: #111827;
    
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-heading: 'Poppins', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    
    --border-radius: 6px;
    --border-radius-lg: 12px;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    
    --transition: all 0.3s ease;
    --transition-fast: all 0.15s ease;
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-primary);
    line-height: 1.6;
    color: var(--gray-700);
    background: #ffffff;
    overflow-x: hidden;
    /* padding-top: 70px; */
    background-image: 
        radial-gradient(circle at 25% 25%, rgba(30, 64, 175, 0.02) 0%, transparent 50%),
        radial-gradient(circle at 75% 75%, rgba(249, 115, 22, 0.02) 0%, transparent 50%);
    background-attachment: fixed;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 600;
    line-height: 1.2;
    color: var(--gray-900);
    margin-bottom: 0.75rem;
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.25rem; }
h5 { font-size: 1.125rem; }
h6 { font-size: 1rem; }

p {
    margin-bottom: 1rem;
    color: var(--gray-600);
    font-size: 1rem;
    line-height: 1.7;
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
}

/* Header - Fixed Navigation */
.header {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(15px);
    box-shadow: 0 1px 20px rgba(0, 0, 0, 0.08);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 9999;
    transition: all 0.3s ease;
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
}

.navbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0;
    height: 70px;
    position: relative;
    width: 100%;
}

.logo {
    display: flex;
    align-items: center;
    font-family: var(--font-heading);
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--primary-color);
    text-decoration: none;
    z-index: 10001;
    white-space: nowrap;
    overflow: hidden;
}

.logo-image {
    height: 40px;
    width: auto;
    margin-right: 0.6rem;
    object-fit: contain;
    transition: all 0.3s ease;
    flex-shrink: 0;
}

.logo:hover .logo-image {
    transform: scale(1.05);
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    list-style: none;
    margin: 0;
    padding: 0;
}

.nav-link {
    font-weight: 500;
    color: var(--gray-700);
    position: relative;
    transition: all 0.2s ease;
    text-decoration: none;
    font-size: 0.95rem;
    padding: 0.5rem 0;
    white-space: nowrap;
}

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

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-color);
    transition: width 0.2s ease;
}

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

.btn-quote {
    background: linear-gradient(135deg, var(--secondary-color), #ea580c);
    color: white !important;
    padding: 0.75rem 1.5rem;
    border-radius: 50px;
    font-weight: 600;
    transition: var(--transition-fast);
    text-decoration: none;
    font-size: 0.95rem;
    box-shadow: 0 4px 15px rgba(249, 115, 22, 0.3);
    position: relative;
    overflow: hidden;
    white-space: nowrap;
}

.btn-quote:hover {
    background: linear-gradient(135deg, #ea580c, #dc2626);
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(249, 115, 22, 0.4);
}

.btn-quote::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: var(--transition);
}

.btn-quote:hover::before {
    left: 100%;
}

.btn-signin {
    background: transparent;
    color: var(--primary-color) !important;
    padding: 0.75rem 1.5rem;
    border: 2px solid var(--primary-color);
    border-radius: 50px;
    font-weight: 600;
    transition: var(--transition-fast);
    text-decoration: none;
    font-size: 0.95rem;
    margin-left: 0.5rem;
    position: relative;
    overflow: hidden;
    white-space: nowrap;
}

.btn-signin:hover {
    background: var(--primary-color);
    color: white !important;
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(30, 64, 175, 0.3);
}

.mobile-toggle {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    cursor: pointer;
    width: 32px;
    height: 24px;
    border: none;
    background: transparent;
    padding: 0.25rem;
    z-index: 10001;
    position: relative;
    border-radius: var(--border-radius);
    transition: all 0.3s ease;
}

.mobile-toggle:hover {
    background: rgba(30, 64, 175, 0.1);
}

.mobile-toggle span {
    width: 100%;
    height: 3px;
    background: var(--primary-color);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    border-radius: 2px;
    transform-origin: center;
}

.mobile-toggle:hover span {
    background: var(--secondary-color);
}

/* Hero Section */
.hero {
    position: relative;
    margin-top: -70px;
    padding-top: 70px;
    height: 80vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    background-attachment: scroll;
    background-size: cover;
    background-position: center;
    min-height: 600px;
    text-align: center;
    background-repeat: no-repeat;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(30, 64, 175, 0.85) 0%, rgba(249, 115, 22, 0.75) 100%);
    opacity: 0;
    animation: overlayFadeIn 1.5s ease-out 0.5s forwards;
}

@keyframes overlayFadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.hero-content {
    position: relative;
    z-index: 2;
    color: white;
    max-width: 700px;
    width: 100%;
    text-align: center;
    padding: 0 1.5rem;
    animation: constructionSlideIn 1.2s cubic-bezier(0.23, 1, 0.32, 1);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    margin: 0 auto;
}

@keyframes constructionSlideIn {
    0% {
        opacity: 0;
        transform: translateY(60px) scale(0.8);
    }
    50% {
        opacity: 0.7;
        transform: translateY(20px) scale(0.95);
    }
    100% {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.hero-title {
    font-size: 3rem;
    font-weight: 800;
    margin-bottom: 1rem;
    color: white;
    text-shadow: 3px 3px 6px rgba(0, 0, 0, 0.5);
    line-height: 1.1;
    animation: titleGlow 2s ease-in-out infinite alternate;
}

@keyframes titleGlow {
    from {
        text-shadow: 3px 3px 6px rgba(0, 0, 0, 0.5);
    }
    to {
        text-shadow: 3px 3px 6px rgba(0, 0, 0, 0.5), 0 0 20px rgba(249, 115, 22, 0.4);
    }
}

.hero-subtitle {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    opacity: 0.95;
    font-weight: 400;
    color: rgba(255, 255, 255, 0.9);
}

/* Homepage Hero Carousel */
.hero-carousel {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.hero-slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    transition: opacity 2s ease-in-out;
    background-size: cover;
    background-position: center;
    background-attachment: scroll;
    transform: scale(1);
    will-change: opacity;
}

.hero-slide.active {
    opacity: 1;
}

.hero-slide::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(45deg, rgba(30, 64, 175, 0.1), rgba(249, 115, 22, 0.1));
    z-index: 1;
}

/* Hero Navigation Arrows */
.hero-nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 50px;
    height: 50px;
    background: rgba(255, 255, 255, 0.2);
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    color: white;
    font-size: 1.2rem;
    cursor: pointer;
    z-index: 4;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(10px);
}

.hero-nav:hover {
    background: rgba(255, 255, 255, 0.3);
    border-color: rgba(255, 255, 255, 0.6);
    transform: translateY(-50%) scale(1.1);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.2);
}

.hero-prev {
    left: 2rem;
}

.hero-next {
    right: 2rem;
}

.hero-buttons {
    display: flex;
    gap: 0.75rem;
    justify-content: center;
    flex-wrap: wrap;
    margin-top: 1.5rem;
}

.hero-buttons .btn-primary,
.hero-buttons .btn-secondary {
    padding: 0.75rem 1.25rem;
    font-size: 0.9rem;
    min-width: 140px;
    max-width: 180px;
    border-radius: 25px;
}

.btn-primary {
    background: var(--secondary-color);
    color: white;
    padding: 1rem 2rem;
    border-radius: var(--border-radius-lg);
    font-weight: 600;
    font-size: 1rem;
    border: none;
    cursor: pointer;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    text-decoration: none;
    box-shadow: var(--shadow-md);
}

.btn-primary:hover {
    background: #ea580c;
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

.btn-secondary {
    background: transparent;
    color: white;
    padding: 1rem 2rem;
    border: 2px solid white;
    border-radius: var(--border-radius-lg);
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.btn-secondary:hover {
    background: white;
    color: var(--primary-color);
    transform: translateY(-3px);
}

/* Sections */
.section {
    padding: 5rem 0;
    position: relative;
}

.section-header {
    text-align: center;
    margin-bottom: 3rem;
    animation: fadeInUp 0.8s ease-out;
}

.section-title {
    margin-bottom: 1rem;
    position: relative;
    font-size: 2.2rem;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background: var(--secondary-color);
    border-radius: 2px;
}

.section-subtitle {
    font-size: 1.1rem;
    color: var(--gray-600);
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.6;
}

/* Services Section */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.service-card {
    background: white;
    padding: 2rem;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow);
    text-align: center;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
    border: 1px solid var(--gray-100);
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: var(--primary-color);
    transform: scaleX(0);
    transition: var(--transition);
}

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

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

.service-image {
    width: 100%;
    height: 200px;
    object-fit: cover;
    border-radius: var(--border-radius);
    margin-bottom: 1.5rem;
    transition: var(--transition);
}

.service-card:hover .service-image {
    transform: scale(1.05);
}

.service-icon {
    width: 70px;
    height: 70px;
    background: var(--gray-100);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    font-size: 1.8rem;
    color: var(--primary-color);
    transition: var(--transition);
}

.service-card:hover .service-icon {
    background: var(--primary-color);
    color: white;
    transform: scale(1.1);
}

.service-title {
    font-size: 1.3rem;
    margin-bottom: 1rem;
    color: var(--gray-900);
}

.service-description {
    color: var(--gray-600);
    line-height: 1.6;
    font-size: 0.95rem;
    margin-bottom: 1.5rem;
    flex-grow: 1;
}

.service-actions {
    display: flex;
    gap: 0.75rem;
    justify-content: center;
    margin-top: auto;
    padding-top: 1rem;
    border-top: 1px solid var(--gray-100);
}

.service-actions .btn {
    flex: 1;
    text-align: center;
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
    font-weight: 500;
    border-radius: var(--border-radius);
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    text-decoration: none;
}

.service-actions .btn-outline {
    background: transparent;
    color: var(--primary-color);
    border: 1px solid var(--primary-color);
}

.service-actions .btn-outline:hover {
    background: var(--primary-color);
    color: white;
    transform: translateY(-2px);
}

.service-actions .btn-primary {
    background: var(--primary-color);
    color: white;
    border: 1px solid var(--primary-color);
}

.service-actions .btn-primary:hover {
    background: var(--primary-color);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* Projects Section */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(380px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.project-card {
    background: white;
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
    border: 1px solid var(--gray-100);
}

.project-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
}

.project-image {
    position: relative;
    height: 250px;
    overflow: hidden;
}

.project-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.project-card:hover .project-image img {
    transform: scale(1.05);
}

.project-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(30, 64, 175, 0.8);
    opacity: 0;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
}

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

.project-overlay i {
    color: white;
    font-size: 2.5rem;
}

.project-content {
    padding: 1.5rem;
}

.project-title {
    font-size: 1.3rem;
    margin-bottom: 0.5rem;
    color: var(--gray-900);
}

.project-location {
    color: var(--gray-500);
    font-size: 0.9rem;
    margin-bottom: 1rem;
}

.project-description {
    color: var(--gray-600);
    line-height: 1.6;
    font-size: 0.95rem;
}

/* Testimonials */
.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.testimonial-card {
    background: white;
    padding: 2rem;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow);
    position: relative;
    transition: var(--transition);
    border: 1px solid var(--gray-100);
}

.testimonial-card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-3px);
}

.testimonial-quote {
    font-size: 2.5rem;
    color: var(--primary-color);
    position: absolute;
    top: 1rem;
    right: 2rem;
    opacity: 0.3;
}

.testimonial-text {
    font-style: italic;
    color: var(--gray-600);
    margin-bottom: 1.5rem;
    line-height: 1.6;
    font-size: 0.95rem;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.testimonial-avatar {
    width: 50px;
    height: 50px;
    background: var(--primary-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 600;
    font-size: 1.2rem;
}

.testimonial-author-info h4 {
    margin-bottom: 0.25rem;
    color: var(--gray-900);
    font-size: 1rem;
}

.testimonial-author-info p {
    color: var(--gray-500);
    font-size: 0.85rem;
    margin: 0;
}

.testimonial-rating {
    color: var(--warning-color);
    margin-top: 0.5rem;
}

/* CTA Section */
.cta-section {
    background: linear-gradient(135deg, var(--primary-color) 0%, #1e3a8a 100%);
    color: white;
    position: relative;
    overflow: hidden;
}

.cta-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: url('data:image/svg+xml,<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="white" opacity="0.1"/><circle cx="75" cy="75" r="1" fill="white" opacity="0.1"/></pattern></defs><rect width="100" height="100" fill="url(%23grain)"/></svg>');
    opacity: 0.3;
}

.cta-section .section-header {
    position: relative;
    z-index: 2;
}

/* Forms */
.form-group {
    margin-bottom: 1.5rem;
}

.form-label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: var(--gray-700);
    font-size: 0.95rem;
}

.form-control {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 2px solid var(--gray-200);
    border-radius: var(--border-radius);
    font-size: 1rem;
    transition: var(--transition-fast);
    background: white;
}

.form-control:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(30, 64, 175, 0.1);
}

.form-control.error {
    border-color: var(--danger-color);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: var(--border-radius);
    font-weight: 600;
    text-align: center;
    cursor: pointer;
    transition: var(--transition);
    gap: 0.5rem;
    font-size: 1rem;
    line-height: 1;
    text-decoration: none;
    box-shadow: var(--shadow-sm);
}

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

.btn-lg {
    padding: 1rem 2rem;
    font-size: 1.1rem;
}

.btn-sm {
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
}

/* Footer */
.footer {
    background: var(--gray-900);
    color: white;
    padding: 3rem 0 1rem;
    position: relative;
}

.footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--primary-color), transparent);
}

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

.footer-logo {
    display: flex;
    align-items: center;
    margin-bottom: 1rem;
}

.footer-logo-image {
    height: 35px;
    width: auto;
    margin-right: 0.75rem;
    object-fit: contain;
    filter: brightness(0) invert(1);
}

.footer-logo h3 {
    color: white;
    margin: 0;
    font-size: 1.25rem;
    font-weight: 700;
}

.footer-section h3,
.footer-section h4 {
    color: white;
    margin-bottom: 1rem;
    font-size: 1.1rem;
    font-weight: 600;
}

.footer-section p,
.footer-section a {
    color: var(--gray-300);
    margin-bottom: 0.5rem;
    font-size: 0.9rem;
    line-height: 1.5;
}

.footer-section a:hover {
    color: var(--secondary-color);
    transition: var(--transition-fast);
}

.footer-bottom {
    border-top: 1px solid var(--gray-700);
    padding-top: 1rem;
    text-align: center;
    color: var(--gray-400);
    font-size: 0.85rem;
}

/* Background Patterns */
.bg-light {
    background: var(--gray-50);
    background-image: 
        radial-gradient(circle at 25% 25%, rgba(30, 64, 175, 0.03) 0%, transparent 50%),
        radial-gradient(circle at 75% 75%, rgba(249, 115, 22, 0.03) 0%, transparent 50%);
}

.bg-primary {
    background: linear-gradient(135deg, var(--primary-color) 0%, #1e3a8a 100%);
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.animate-on-scroll {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s ease;
}

.animate-on-scroll.in-view {
    opacity: 1;
    transform: translateY(0);
}

/* Utilities */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.d-none { display: none; }
.d-block { display: block; }
.d-flex { display: flex; }
.d-grid { display: grid; }

.mt-1 { margin-top: 0.25rem; }
.mt-2 { margin-top: 0.5rem; }
.mt-3 { margin-top: 1rem; }
.mt-4 { margin-top: 1.5rem; }
.mt-5 { margin-top: 3rem; }

.mb-1 { margin-bottom: 0.25rem; }
.mb-2 { margin-bottom: 0.5rem; }
.mb-3 { margin-bottom: 1rem; }
.mb-4 { margin-bottom: 1.5rem; }
.mb-5 { margin-bottom: 3rem; }

/* Enhanced Mobile Responsiveness */
/* Responsive Logo Styles */
@media (max-width: 768px) {
    .logo {
        font-size: 1rem;
    }
    
    .logo-image {
        height: 35px;
        margin-right: 0.5rem;
    }
}

@media (max-width: 480px) {
    .logo {
        font-size: 0.9rem;
    }
    
    .logo-image {
        height: 30px;
        margin-right: 0.4rem;
    }
}

@media (max-width: 380px) {
    .logo {
        font-size: 0.8rem;
    }
    
    .logo-image {
        height: 28px;
        margin-right: 0.3rem;
    }
}

/* Mobile Navigation */
@media (max-width: 992px) {
    .mobile-toggle {
        display: flex;
    }
    
    .mobile-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }
    
    .mobile-toggle.active span:nth-child(2) {
        opacity: 0;
        transform: scale(0);
    }
    
    .mobile-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(7px, -6px);
    }
    
    .nav-menu {
        position: fixed;
        top: 70px;
        right: -100%;
        width: 100%;
        height: calc(100vh - 70px);
        background: rgba(255, 255, 255, 0.98);
        backdrop-filter: blur(20px);
        flex-direction: column;
        justify-content: flex-start;
        align-items: stretch;
        padding: 0.5rem 0 2rem 0;
        transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
        box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
        overflow-y: scroll;
        overflow-x: hidden;
        z-index: 10000;
        -webkit-overflow-scrolling: touch;
        scrollbar-width: auto;
        scrollbar-color: var(--gray-400) var(--gray-100);
    }
    
    /* Mobile navigation scrollbar styling */
    .nav-menu::-webkit-scrollbar {
        width: 8px;
    }
    
    .nav-menu::-webkit-scrollbar-track {
        background: var(--gray-100);
        border-radius: 4px;
        margin: 0.5rem 0;
    }
    
    .nav-menu::-webkit-scrollbar-thumb {
        background: var(--gray-400);
        border-radius: 4px;
        border: 1px solid var(--gray-200);
    }
    
    .nav-menu::-webkit-scrollbar-thumb:hover {
        background: var(--gray-500);
    }
    
    .nav-menu.active {
        right: 0;
    }
    
    .nav-menu li {
        margin: 0;
        width: 100%;
        opacity: 0;
        transform: translateX(50px);
        transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
        border-bottom: 1px solid var(--gray-200);
    }
    
    .nav-menu li:last-child {
        border-bottom: none;
    }
    
    .nav-menu.active li {
        opacity: 1;
        transform: translateX(0);
    }
    
    .nav-menu.active li:nth-child(1) { transition-delay: 0.1s; }
    .nav-menu.active li:nth-child(2) { transition-delay: 0.2s; }
    .nav-menu.active li:nth-child(3) { transition-delay: 0.3s; }
    .nav-menu.active li:nth-child(4) { transition-delay: 0.4s; }
    .nav-menu.active li:nth-child(5) { transition-delay: 0.5s; }
    .nav-menu.active li:nth-child(6) { transition-delay: 0.6s; }
    .nav-menu.active li:nth-child(7) { transition-delay: 0.7s; }
    .nav-menu.active li:nth-child(8) { transition-delay: 0.8s; }
    
    .nav-link {
        display: block;
        padding: 0.875rem 1.5rem;
        margin: 0;
        font-size: 1rem;
        font-weight: 500;
        width: 100%;
        transition: all 0.3s ease;
        color: var(--gray-700);
        background: transparent;
        position: relative;
        text-decoration: none;
    }
    
    .nav-link:hover,
    .nav-link.active {
        color: var(--primary-color);
        background: var(--gray-50);
        padding-left: 2rem;
    }
    
    .nav-link:active {
        transform: scale(0.98);
    }
    
    .btn-signin,
    .btn-quote {
        margin: 0.5rem 1rem;
        width: calc(100% - 2rem);
        text-align: center;
        padding: 0.875rem 1.5rem;
        font-size: 0.95rem;
        border-radius: var(--border-radius);
        font-weight: 600;
        transition: all 0.3s ease;
        text-decoration: none;
        display: inline-block;
    }
    
    .btn-quote {
        background: linear-gradient(135deg, var(--secondary-color), #ea580c);
        color: white;
        border: 2px solid var(--secondary-color);
        margin-bottom: 0.5rem;
        box-shadow: var(--shadow-md);
    }
    
    .btn-signin {
        background: transparent;
        color: var(--primary-color);
        border: 2px solid var(--primary-color);
    }
    
    .btn-quote:hover {
        background: linear-gradient(135deg, #ea580c, #dc2626);
        transform: translateY(-3px);
        box-shadow: 0 8px 25px rgba(249, 115, 22, 0.4);
    }
    
    .btn-signin:hover {
        background: var(--primary-color);
        color: white;
        transform: translateY(-3px);
        box-shadow: 0 8px 25px rgba(30, 64, 175, 0.3);
    }
}

@media (max-width: 768px) {
    .hero {
        height: 70vh;
        min-height: 500px;
    }
    
    .hero-content {
        padding: 1rem;
        text-align: center;
        justify-content: center;
        align-items: center;
        height: 100%;
        display: flex;
        flex-direction: column;
        margin: 0 auto;
        max-width: 90%;
    }
    
    .hero-nav {
        width: 40px;
        height: 40px;
        font-size: 1rem;
    }
    
    .hero-prev {
        left: 1rem;
    }
    
    .hero-next {
        right: 1rem;
    }
    
    .hero-title {
        font-size: 1.8rem;
        line-height: 1.3;
        margin-bottom: 1rem;
        text-align: center;
    }
    
    .hero-subtitle {
        font-size: 0.95rem;
        line-height: 1.5;
        margin-bottom: 1.5rem;
        text-align: center;
        max-width: 90%;
    }
    
    .hero-buttons {
        flex-direction: row;
        align-items: center;
        justify-content: center;
        gap: 0.5rem;
        width: 100%;
        flex-wrap: wrap;
    }
    
    .hero-buttons .btn-primary,
    .hero-buttons .btn-secondary {
        width: auto;
        min-width: 120px;
        max-width: 160px;
        padding: 0.65rem 1rem;
        font-size: 0.85rem;
    }
    
    .section-title {
        font-size: 1.8rem;
    }
    
    .services-grid,
    .projects-grid,
    .testimonials-grid {
        grid-template-columns: 1fr;
    }
    
    .service-actions {
        flex-direction: column;
        gap: 0.5rem;
    }
    
    .service-actions .btn {
        flex: none;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    h1 { font-size: 2rem; }
    h2 { font-size: 1.5rem; }
    h3 { font-size: 1.25rem; }
}

@media (max-width: 480px) {
    .container {
        padding: 0 0.5rem;
    }
    
    .navbar {
        padding: 0 0.5rem;
    }
    
    .mobile-toggle {
        width: 28px;
        height: 20px;
    }
    
    .hero {
        height: 60vh;
        min-height: 400px;
    }
    
    .hero-content {
        padding: 0.75rem;
        text-align: center;
        margin: 0 auto;
        max-width: 95%;
    }
    
    .hero-title {
        font-size: 1.5rem;
        line-height: 1.3;
        margin-bottom: 0.75rem;
    }
    
    .hero-subtitle {
        font-size: 0.875rem;
        line-height: 1.4;
        margin-bottom: 1.25rem;
    }
    
    .hero-buttons .btn-primary,
    .hero-buttons .btn-secondary {
        width: auto;
        min-width: 110px;
        max-width: 140px;
        padding: 0.6rem 0.9rem;
        font-size: 0.8rem;
    }
    
    .section {
        padding: 3rem 0;
    }
    
    .service-card,
    .project-card,
    .testimonial-card {
        padding: 1.5rem;
    }
    
    .floating-contacts {
        bottom: 100px;
        right: 15px;
    }
    
    .floating-btn {
        width: 50px;
        height: 50px;
        font-size: 1.2rem;
    }
}

/* Ultra small devices */
@media (max-width: 360px) {
    .navbar {
        padding: 0 0.25rem;
    }
    
    .mobile-toggle {
        width: 26px;
        height: 18px;
    }
    
    .nav-menu {
        padding: 0.5rem 0;
    }
    
    .nav-link {
        padding: 0.875rem 1rem;
        font-size: 1rem;
    }
    
    .btn-signin,
    .btn-quote {
        padding: 0.875rem 1rem;
        font-size: 0.9rem;
        margin: 0.5rem 0.5rem;
        width: calc(100% - 1rem);
    }
}

/* Floating Contact Buttons */
.floating-contacts {
    position: fixed;
    bottom: 30px;
    right: 30px;
    display: flex;
    flex-direction: column;
    gap: 15px;
    z-index: 1000;
}

.floating-btn {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    color: white;
    font-size: 1.5rem;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.floating-btn::after {
    content: attr(data-tooltip);
    position: absolute;
    right: 70px;
    top: 50%;
    transform: translateY(-50%);
    background: var(--gray-900);
    color: white;
    padding: 0.75rem 1rem;
    border-radius: var(--border-radius);
    font-size: 0.875rem;
    font-weight: 500;
    white-space: nowrap;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    box-shadow: var(--shadow-lg);
    z-index: 1000;
}

.floating-btn::before {
    content: '';
    position: absolute;
    right: 62px;
    top: 50%;
    transform: translateY(-50%);
    width: 0;
    height: 0;
    border-left: 8px solid var(--gray-900);
    border-top: 8px solid transparent;
    border-bottom: 8px solid transparent;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    z-index: 1000;
}

.floating-btn:hover::after,
.floating-btn:hover::before {
    opacity: 1;
    visibility: visible;
}

.floating-whatsapp {
    background: linear-gradient(135deg, #25d366, #128c7e);
}

.floating-whatsapp:hover {
    background: linear-gradient(135deg, #128c7e, #075e54);
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(37, 211, 102, 0.4);
}

.floating-call {
    background: linear-gradient(135deg, var(--primary-color), #1d4ed8);
}

.floating-call:hover {
    background: linear-gradient(135deg, #1d4ed8, #1e3a8a);
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(30, 64, 175, 0.4);
}

.floating-btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    transition: all 0.3s ease;
    transform: translate(-50%, -50%);
}

.floating-btn:hover::before {
    width: 100%;
    height: 100%;
}

.floating-btn:active {
    transform: translateY(-2px) scale(0.95);
}

/* Animation for floating buttons */
@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-10px); }
}

.floating-contacts:hover .floating-btn:nth-child(1) {
    animation: float 2s ease-in-out infinite;
    animation-delay: 0s;
}

.floating-contacts:hover .floating-btn:nth-child(2) {
    animation: float 2s ease-in-out infinite;
    animation-delay: 0.5s;
}