/* UTL Battery Projects - Complete Responsive CSS */
:root {
    --primary-blue: #0066cc;
    --dark-blue: #0052a3;
    --primary-orange: #ff6b00;
    --dark-orange: #cc5500;
    --primary-green: #10b981;
    --dark-green: #0d9c6a;
    --primary-yellow: #f59e0b;
    --dark-yellow: #d97706;
    --primary-gray: #4b5563;
    --dark-gray: #374151;
    --light-blue: #e6f2ff;
    --light-green: #e6f7f0;
    --light-orange: #fff3e6;
    --light-yellow: #fef3c7;
    --light-gray-bg: #f8fafc;
    --text-dark: #1a202c;
    --text-medium: #4a5568;
    --text-light: #718096;
    --light-gray: #f7fafc;
    --medium-gray: #e2e8f0;
    --dark-gray-border: #a0aec0;
    --white: #ffffff;
    --shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.15);
    --shadow-xl: 0 20px 40px rgba(0, 0, 0, 0.2);
    --radius: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --transition: all 0.3s ease;
    --transition-slow: all 0.5s ease;
}

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

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

body {
    font-family: 'Poppins', sans-serif;
    line-height: 1.6;
    color: var(--text-medium);
    background-color: var(--white);
    overflow-x: hidden;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: 'Montserrat', sans-serif;
    font-weight: 700;
    color: var(--text-dark);
    line-height: 1.2;
}

h1 {
    font-size: clamp(2rem, 5vw, 3.5rem);
}

h2 {
    font-size: clamp(1.75rem, 4vw, 2.8rem);
}

h3 {
    font-size: clamp(1.5rem, 3vw, 2rem);
}

h4 {
    font-size: clamp(1.25rem, 2.5vw, 1.5rem);
}

p {
    margin-bottom: 1rem;
    font-size: clamp(0.95rem, 2vw, 1.1rem);
}

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

.highlight::after {
    content: '';
    position: absolute;
    bottom: 2px;
    left: 0;
    width: 100%;
    height: 4px;
    background: rgba(255, 107, 0, 0.2);
    z-index: -1;
}

/* Section Header */
.section-header {
    text-align: center;
    margin-bottom: clamp(40px, 8vw, 60px);
}

.section-description {
    max-width: 700px;
    margin: 0 auto;
    color: var(--text-light);
    font-size: clamp(1rem, 2vw, 1.1rem);
}

/* Buttons */
.btn-primary, .btn-secondary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: clamp(12px, 2vw, 16px) clamp(20px, 3vw, 35px);
    border-radius: 50px;
    font-weight: 600;
    font-size: clamp(0.95rem, 1.5vw, 1.1rem);
    text-decoration: none;
    transition: var(--transition);
    border: none;
    cursor: pointer;
    white-space: nowrap;
}

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

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

.btn-secondary {
    background: transparent;
    color: var(--primary-blue);
    border: 2px solid var(--primary-blue);
}

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

/* ==========================================================================
   UTL PROJECTS HERO SECTION
   ========================================================================== */
.utl-projects-hero {
    padding: clamp(80px, 10vw, 140px) 0 clamp(60px, 8vw, 80px);
    background: linear-gradient(135deg, #0a1929 0%, #1a365d 100%);
    color: var(--white);
    position: relative;
    overflow: hidden;
}

.utl-projects-hero::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 100%;
    height: 100%;
    background: url('../img/utl-battery-pattern.png') no-repeat;
    background-size: cover;
    opacity: 0.1;
}

.utl-projects-hero .hero-content {
    display: grid;
    grid-template-columns: 1fr;
    gap: clamp(40px, 6vw, 60px);
    position: relative;
    z-index: 2;
}

@media (min-width: 992px) {
    .utl-projects-hero .hero-content {
        grid-template-columns: 1fr 1fr;
        align-items: center;
    }
}

.utl-projects-hero .badge {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    background: linear-gradient(135deg, var(--primary-orange), var(--dark-orange));
    color: var(--white);
    padding: clamp(8px, 1.5vw, 12px) clamp(15px, 2vw, 25px);
    border-radius: 30px;
    font-weight: 600;
    margin-bottom: clamp(20px, 3vw, 30px);
    box-shadow: var(--shadow);
}

.utl-projects-hero .badge i {
    font-size: clamp(1rem, 1.5vw, 1.2rem);
}

.utl-projects-hero .subtitle {
    font-size: clamp(1rem, 2vw, 1.2rem);
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: clamp(30px, 4vw, 40px);
    line-height: 1.7;
}

.utl-projects-hero .hero-stats {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: clamp(15px, 2vw, 20px);
    margin: clamp(30px, 4vw, 40px) 0;
}

@media (min-width: 576px) {
    .utl-projects-hero .hero-stats {
        grid-template-columns: repeat(4, 1fr);
    }
}

.utl-projects-hero .stat {
    text-align: center;
    padding: clamp(15px, 2vw, 20px);
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--radius);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.utl-projects-hero .stat-value {
    display: block;
    font-size: clamp(1.5rem, 3vw, 2.5rem);
    font-weight: 800;
    color: var(--primary-orange);
    margin-bottom: 5px;
}

.utl-projects-hero .stat-label {
    font-size: clamp(0.85rem, 1.5vw, 1rem);
    opacity: 0.9;
}

.utl-projects-hero .hero-buttons {
    display: flex;
    flex-direction: column;
    gap: 15px;
    margin-top: clamp(20px, 3vw, 40px);
}

@media (min-width: 768px) {
    .utl-projects-hero .hero-buttons {
        flex-direction: row;
    }
}

.utl-projects-hero .hero-image {
    position: relative;
}

.utl-projects-hero .image-wrapper {
    position: relative;
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-xl);
    border: 3px solid rgba(255, 255, 255, 0.1);
}

.utl-projects-hero .image-wrapper img {
    width: 100%;
    height: clamp(250px, 40vw, 400px);
    object-fit: cover;
    display: block;
    transition: transform 0.6s ease;
}

.utl-projects-hero .image-wrapper:hover img {
    transform: scale(1.05);
}

.utl-projects-hero .image-badge {
    position: absolute;
    bottom: -20px;
    right: clamp(15px, 3vw, 30px);
    background: linear-gradient(135deg, var(--primary-blue), var(--dark-blue));
    color: var(--white);
    padding: clamp(15px, 2vw, 20px);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    border: 2px solid rgba(255, 255, 255, 0.3);
}

.utl-projects-hero .badge-content {
    display: flex;
    align-items: center;
    gap: 10px;
}

.utl-projects-hero .badge-content img {
    width: clamp(30px, 4vw, 40px);
    height: clamp(30px, 4vw, 40px);
}

.utl-projects-hero .badge-text {
    display: flex;
    flex-direction: column;
}

.utl-projects-hero .badge-title {
    font-size: clamp(0.85rem, 1.5vw, 1rem);
    font-weight: 600;
}

.utl-projects-hero .badge-subtitle {
    font-size: clamp(0.75rem, 1.2vw, 0.9rem);
    opacity: 0.9;
}

/* ==========================================================================
   UTL RANGE SECTION
   ========================================================================== */
.utl-range-section {
    padding: clamp(60px, 8vw, 100px) 0;
    background: var(--light-gray-bg);
}

.range-tabs {
    background: var(--white);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow);
    overflow: hidden;
}

.tabs-header {
    display: flex;
    flex-wrap: wrap;
    border-bottom: 2px solid var(--medium-gray);
    background: var(--light-gray-bg);
}

.range-tab {
    flex: 1;
    min-width: 150px;
    padding: clamp(15px, 2vw, 20px) clamp(20px, 2.5vw, 30px);
    background: var(--light-gray-bg);
    border: none;
    color: var(--text-medium);
    font-weight: 600;
    font-size: clamp(0.95rem, 1.5vw, 1.1rem);
    cursor: pointer;
    transition: var(--transition);
    border-bottom: 3px solid transparent;
    border-right: 1px solid var(--medium-gray);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    text-align: center;
}

.range-tab:last-child {
    border-right: none;
}

@media (max-width: 576px) {
    .range-tab {
        min-width: 50%;
        border-right: none;
        border-bottom: 1px solid var(--medium-gray);
    }
    
    .range-tab:nth-child(odd) {
        border-right: 1px solid var(--medium-gray);
    }
}

.range-tab:hover {
    background: var(--light-blue);
    color: var(--primary-blue);
}

.range-tab.active {
    background: var(--white);
    color: var(--primary-blue);
    border-bottom: 3px solid var(--primary-blue);
}

.range-tab-content {
    display: none;
    animation: fadeIn 0.5s ease;
}

.range-tab-content.active {
    display: block;
}

.range-content {
    padding: clamp(30px, 4vw, 60px);
    display: grid;
    grid-template-columns: 1fr;
    gap: clamp(40px, 6vw, 60px);
    align-items: center;
}

@media (min-width: 992px) {
    .range-content {
        grid-template-columns: 1fr 1fr;
    }
}

.range-content .range-info h3 {
    margin-bottom: clamp(15px, 2vw, 20px);
}

.range-content .range-info > p {
    margin-bottom: clamp(20px, 3vw, 30px);
    color: var(--text-medium);
}

.battery-models {
    display: grid;
    grid-template-columns: 1fr;
    gap: clamp(20px, 3vw, 30px);
    margin: clamp(20px, 3vw, 30px) 0;
}

@media (min-width: 768px) {
    .battery-models {
        grid-template-columns: repeat(2, 1fr);
    }
}

.model-card {
    background: var(--light-gray-bg);
    border-radius: var(--radius);
    padding: clamp(20px, 3vw, 25px);
    border: 2px solid var(--medium-gray);
    transition: var(--transition);
}

.model-card:hover {
    border-color: var(--primary-blue);
    transform: translateY(-5px);
    box-shadow: var(--shadow);
}

.model-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: clamp(15px, 2vw, 20px);
}

.model-header h4 {
    color: var(--text-dark);
    font-size: clamp(1.1rem, 1.8vw, 1.3rem);
}

.model-tag {
    background: var(--primary-orange);
    color: var(--white);
    padding: 4px 12px;
    border-radius: 20px;
    font-size: clamp(0.75rem, 1.2vw, 0.85rem);
    font-weight: 600;
}

.model-specs {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-bottom: clamp(10px, 1.5vw, 15px);
}

.model-specs .spec {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--text-medium);
    font-size: clamp(0.9rem, 1.5vw, 1rem);
}

.model-specs .spec i {
    color: var(--primary-blue);
    width: 20px;
}

.model-card p {
    color: var(--text-light);
    font-size: clamp(0.9rem, 1.5vw, 1rem);
    margin-bottom: 0;
}

.range-image {
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.range-image img {
    width: 100%;
    height: clamp(300px, 40vw, 400px);
    object-fit: cover;
    display: block;
    transition: transform 0.6s ease;
}

.range-content:hover .range-image img {
    transform: scale(1.05);
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ==========================================================================
   UTL PROJECTS GALLERY
   ========================================================================== */
.utl-projects-gallery {
    padding: clamp(60px, 8vw, 100px) 0;
    background: var(--white);
}

.gallery-filter {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: clamp(8px, 1.5vw, 15px);
    margin: clamp(30px, 4vw, 40px) 0 clamp(40px, 6vw, 60px);
}

.filter-btn {
    padding: clamp(10px, 1.5vw, 12px) clamp(15px, 2vw, 25px);
    background: var(--light-gray-bg);
    border: 2px solid var(--medium-gray);
    border-radius: 30px;
    color: var(--text-medium);
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    font-size: clamp(0.85rem, 1.5vw, 0.95rem);
    display: flex;
    align-items: center;
    gap: 8px;
    white-space: nowrap;
}

@media (max-width: 576px) {
    .filter-btn {
        padding: 8px 15px;
        font-size: 0.85rem;
    }
    
    .filter-btn i {
        font-size: 0.85rem;
    }
}

.filter-btn:hover {
    background: var(--light-blue);
    border-color: var(--primary-blue);
    color: var(--primary-blue);
}

.filter-btn.active {
    background: linear-gradient(135deg, var(--primary-blue), var(--dark-blue));
    color: var(--white);
    border-color: transparent;
    box-shadow: 0 5px 15px rgba(0, 102, 204, 0.3);
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: clamp(20px, 3vw, 30px);
}

@media (max-width: 576px) {
    .gallery-grid {
        grid-template-columns: 1fr;
    }
}

.gallery-item {
    background: var(--white);
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
    border: 2px solid transparent;
}

.gallery-item:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-blue);
}

.gallery-image {
    position: relative;
    height: clamp(200px, 30vw, 250px);
    overflow: hidden;
}

.gallery-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s ease;
}

.gallery-item:hover .gallery-image img {
    transform: scale(1.1);
}

.gallery-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: var(--transition);
    padding: 20px;
}

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

.overlay-content {
    text-align: center;
    color: var(--white);
    transform: translateY(20px);
    transition: var(--transition);
}

.gallery-item:hover .overlay-content {
    transform: translateY(0);
}

.overlay-content h3 {
    color: var(--white);
    font-size: clamp(1.1rem, 1.8vw, 1.3rem);
    margin-bottom: 10px;
}

.overlay-content p {
    color: rgba(255, 255, 255, 0.9);
    font-size: clamp(0.9rem, 1.5vw, 1rem);
    margin-bottom: 15px;
}

.view-project-btn {
    background: var(--primary-orange);
    color: var(--white);
    border: none;
    padding: 10px 20px;
    border-radius: 30px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: clamp(0.85rem, 1.5vw, 0.95rem);
}

.view-project-btn:hover {
    background: var(--dark-orange);
    transform: scale(1.05);
}

.gallery-info {
    padding: clamp(15px, 2vw, 20px);
}

.gallery-info h3 {
    font-size: clamp(1.1rem, 1.8vw, 1.3rem);
    margin-bottom: 10px;
    color: var(--text-dark);
}

.project-location {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--text-light);
    font-size: clamp(0.85rem, 1.5vw, 0.9rem);
    margin-bottom: 15px;
}

.project-location i {
    color: var(--primary-blue);
}

.project-specs {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.project-specs span {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    background: var(--light-blue);
    color: var(--primary-blue);
    padding: 6px 12px;
    border-radius: 20px;
    font-size: clamp(0.8rem, 1.3vw, 0.85rem);
    font-weight: 500;
}

.project-specs i {
    font-size: clamp(0.85rem, 1.5vw, 0.9rem);
}

.gallery-cta {
    text-align: center;
    padding: clamp(40px, 6vw, 60px);
    background: linear-gradient(135deg, var(--light-blue), var(--light-green));
    border-radius: var(--radius-xl);
    margin-top: clamp(40px, 6vw, 60px);
}

.gallery-cta h3 {
    font-size: clamp(1.5rem, 3vw, 2rem);
    margin-bottom: 15px;
    color: var(--text-dark);
}

.gallery-cta p {
    color: var(--text-medium);
    margin-bottom: clamp(20px, 3vw, 30px);
    font-size: clamp(1rem, 2vw, 1.1rem);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* ==========================================================================
   UTL INSTALLATION PROCESS
   ========================================================================== */
.utl-installation-process {
    padding: clamp(60px, 8vw, 100px) 0;
    background: var(--light-gray-bg);
}

.process-steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: clamp(20px, 3vw, 30px);
    margin-top: clamp(40px, 6vw, 60px);
}

@media (max-width: 768px) {
    .process-steps {
        grid-template-columns: 1fr;
    }
}

.step {
    background: var(--white);
    border-radius: var(--radius);
    padding: clamp(20px, 3vw, 30px);
    box-shadow: var(--shadow);
    border-left: 4px solid var(--primary-blue);
    position: relative;
    transition: var(--transition);
}

.step:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.step-number {
    position: absolute;
    top: -20px;
    left: -20px;
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--primary-blue), var(--dark-blue));
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 800;
    font-size: 1.2rem;
    box-shadow: var(--shadow);
}

.step-content h3 {
    font-size: clamp(1.2rem, 2vw, 1.4rem);
    margin-bottom: clamp(10px, 1.5vw, 15px);
    color: var(--text-dark);
}

.step-content p {
    color: var(--text-medium);
    margin-bottom: clamp(10px, 1.5vw, 15px);
    font-size: clamp(0.95rem, 1.5vw, 1rem);
}

.step-duration {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--light-blue);
    color: var(--primary-blue);
    padding: 8px 16px;
    border-radius: 20px;
    font-size: clamp(0.85rem, 1.5vw, 0.9rem);
    font-weight: 600;
}

.step-duration i {
    font-size: clamp(0.85rem, 1.5vw, 0.9rem);
}

/* ==========================================================================
   UTL WARRANTY & SUPPORT
   ========================================================================== */
.utl-warranty {
    padding: clamp(60px, 8vw, 100px) 0;
    background: var(--white);
}

.warranty-features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: clamp(20px, 3vw, 30px);
    margin-top: clamp(40px, 6vw, 60px);
}

.warranty-card {
    background: var(--white);
    border-radius: var(--radius);
    padding: clamp(25px, 4vw, 30px);
    box-shadow: var(--shadow);
    border: 2px solid transparent;
    text-align: center;
    transition: var(--transition);
}

.warranty-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-blue);
}

.warranty-icon {
    width: 60px;
    height: 60px;
    margin: 0 auto 20px;
    background: linear-gradient(135deg, var(--primary-blue), var(--dark-blue));
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    box-shadow: var(--shadow);
}

.warranty-card h3 {
    font-size: clamp(1.2rem, 2vw, 1.4rem);
    margin-bottom: 15px;
    color: var(--text-dark);
}

.warranty-card p {
    color: var(--text-medium);
    margin-bottom: clamp(15px, 2vw, 20px);
    font-size: clamp(0.95rem, 1.5vw, 1rem);
}

.warranty-list {
    list-style: none;
    text-align: left;
}

.warranty-list li {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 10px;
    color: var(--text-medium);
    font-size: clamp(0.9rem, 1.5vw, 1rem);
}

.warranty-list i {
    color: var(--primary-green);
    font-size: clamp(0.85rem, 1.5vw, 0.9rem);
}

/* ==========================================================================
   UTL TESTIMONIALS
   ========================================================================== */
.utl-testimonials {
    padding: clamp(60px, 8vw, 100px) 0;
    background: var(--light-gray-bg);
}

.testimonials-slider {
    position: relative;
    max-width: 1000px;
    margin: clamp(40px, 6vw, 60px) auto 0;
    overflow: hidden;
}

.testimonial-track {
    display: flex;
    gap: clamp(20px, 3vw, 30px);
    transition: transform 0.5s ease;
}

.testimonial-slide {
    min-width: 100%;
}

@media (min-width: 768px) {
    .testimonial-slide {
        min-width: calc(50% - 15px);
    }
}

@media (min-width: 992px) {
    .testimonial-slide {
        min-width: calc(33.333% - 20px);
    }
}

.testimonial-content {
    background: var(--white);
    border-radius: var(--radius);
    padding: clamp(25px, 4vw, 30px);
    box-shadow: var(--shadow);
    height: 100%;
}

.testimonial-rating {
    display: flex;
    align-items: center;
    gap: 5px;
    margin-bottom: clamp(15px, 2vw, 20px);
}

.testimonial-rating i {
    color: var(--primary-yellow);
    font-size: clamp(0.85rem, 1.5vw, 1rem);
}

.testimonial-rating span {
    margin-left: 10px;
    font-weight: 600;
    color: var(--text-dark);
}

.testimonial-text {
    color: var(--text-medium);
    font-style: italic;
    margin-bottom: clamp(15px, 2vw, 20px);
    font-size: clamp(0.95rem, 1.5vw, 1rem);
    line-height: 1.7;
}

.testimonial-author {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: clamp(15px, 2vw, 20px);
    border-top: 1px solid var(--medium-gray);
}

.author-info h4 {
    font-size: clamp(1rem, 1.8vw, 1.1rem);
    margin-bottom: 5px;
    color: var(--text-dark);
}

.author-info span {
    color: var(--text-light);
    font-size: clamp(0.85rem, 1.5vw, 0.9rem);
}

.author-image {
    width: 50px;
    height: 50px;
    background: var(--light-blue);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-blue);
    font-size: 1.2rem;
}

.slider-controls {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-top: 30px;
}

.slider-prev, .slider-next {
    width: 50px;
    height: 50px;
    background: var(--white);
    border: 2px solid var(--primary-blue);
    color: var(--primary-blue);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition);
    font-size: 1.2rem;
}

.slider-prev:hover, .slider-next:hover {
    background: var(--primary-blue);
    color: var(--white);
    transform: scale(1.1);
}

/* ==========================================================================
   UTL PROJECTS CTA
   ========================================================================== */
.utl-projects-cta {
    padding: clamp(60px, 8vw, 100px) 0;
    background: linear-gradient(135deg, #0a1929 0%, #1a365d 100%);
    color: var(--white);
}

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

.cta-text h2 {
    color: var(--white);
    margin-bottom: clamp(15px, 2vw, 20px);
}

.cta-text > p {
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: clamp(30px, 4vw, 40px);
    font-size: clamp(1rem, 2vw, 1.2rem);
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.cta-features {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: clamp(15px, 2vw, 20px);
    margin: clamp(30px, 4vw, 40px) auto;
    max-width: 600px;
}

@media (min-width: 576px) {
    .cta-features {
        grid-template-columns: repeat(4, 1fr);
    }
}

.cta-features .feature {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    color: var(--white);
    text-align: center;
}

.cta-features .feature i {
    color: var(--primary-orange);
    font-size: clamp(1.2rem, 2vw, 1.5rem);
}

.cta-features .feature span {
    font-size: clamp(0.9rem, 1.5vw, 1rem);
    font-weight: 500;
}

.cta-buttons {
    display: flex;
    flex-direction: column;
    gap: 15px;
    justify-content: center;
    align-items: center;
    margin-top: clamp(30px, 4vw, 40px);
}

@media (min-width: 768px) {
    .cta-buttons {
        flex-direction: row;
    }
}

/* ==========================================================================
   PROJECT MODAL
   ========================================================================== */
.project-modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    z-index: 9999;
    padding: 20px;
    overflow-y: auto;
}

.project-modal.active {
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-content {
    background: var(--white);
    border-radius: var(--radius-xl);
    max-width: 800px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    position: relative;
    animation: modalSlideIn 0.3s ease;
}

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

.modal-close {
    position: absolute;
    top: 20px;
    right: 20px;
    width: 40px;
    height: 40px;
    background: var(--primary-blue);
    color: var(--white);
    border: none;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    z-index: 10;
    transition: var(--transition);
}

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

.modal-body {
    padding: 40px;
}

/* ==========================================================================
   BACK TO TOP BUTTON
   ========================================================================== */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: var(--primary-blue);
    color: var(--white);
    border: none;
    border-radius: 50%;
    display: none;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    z-index: 999;
    transition: var(--transition);
    box-shadow: var(--shadow);
}

.back-to-top:hover {
    background: var(--dark-blue);
    transform: translateY(-5px);
}

.back-to-top i {
    font-size: 1.2rem;
}

/* ==========================================================================
   RESPONSIVE UTILITIES
   ========================================================================== */
/* Hide on mobile */
.mobile-only {
    display: none;
}

@media (max-width: 768px) {
    .mobile-only {
        display: block;
    }
    
    .desktop-only {
        display: none;
    }
}

/* Spacing utilities */
.mt-20 { margin-top: 20px; }
.mt-40 { margin-top: 40px; }
.mt-60 { margin-top: 60px; }
.mb-20 { margin-bottom: 20px; }
.mb-40 { margin-bottom: 40px; }
.mb-60 { margin-bottom: 60px; }

.p-20 { padding: 20px; }
.p-40 { padding: 40px; }
.p-60 { padding: 60px; }

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

/* Flex utilities */
.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.gap-10 { gap: 10px; }
.gap-20 { gap: 20px; }
.gap-30 { gap: 30px; }

/* Grid utilities */
.grid { display: grid; }
.grid-cols-1 { grid-template-columns: 1fr; }
.grid-cols-2 { grid-template-columns: repeat(2, 1fr); }
.grid-cols-3 { grid-template-columns: repeat(3, 1fr); }
.grid-cols-4 { grid-template-columns: repeat(4, 1fr); }

/* Responsive grid columns */
@media (max-width: 768px) {
    .grid-cols-2,
    .grid-cols-3,
    .grid-cols-4 {
        grid-template-columns: 1fr;
    }
}

/* Loading animation */
.loading {
    position: relative;
    min-height: 100px;
}

.loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 40px;
    height: 40px;
    border: 3px solid var(--medium-gray);
    border-top-color: var(--primary-blue);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    to {
        transform: translate(-50%, -50%) rotate(360deg);
    }
}

/* Print styles */
@media print {
    .hero-buttons,
    .gallery-filter,
    .slider-controls,
    .back-to-top {
        display: none !important;
    }
    
    body {
        font-size: 12pt;
        line-height: 1.4;
    }
    
    .container {
        max-width: 100%;
        padding: 0;
    }
    
    section {
        page-break-inside: avoid;
    }
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    :root {
        --text-dark: #000000;
        --text-medium: #333333;
        --text-light: #666666;
    }
    
    .highlight {
        text-decoration: underline;
    }
}

/* Reduced motion support */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    html {
        scroll-behavior: auto;
    }
}

/* Dark mode support (if needed) */
@media (prefers-color-scheme: dark) {
    :root {
        --text-dark: #f7fafc;
        --text-medium: #e2e8f0;
        --text-light: #a0aec0;
        --white: #1a202c;
        --light-gray-bg: #2d3748;
        --medium-gray: #4a5568;
    }
    
    .utl-projects-hero,
    .utl-projects-cta {
        background: linear-gradient(135deg, #000000 0%, #1a202c 100%);
    }
}

/* ==========================================================================
   NAVIGATION RESPONSIVE FIXES
   ========================================================================== */
@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 80%;
        height: 100vh;
        background: var(--white);
        box-shadow: var(--shadow-xl);
        transition: var(--transition);
        z-index: 1000;
        padding: 80px 20px 40px;
        overflow-y: auto;
    }
    
    .nav-menu.active {
        right: 0;
    }
    
    .nav-links {
        flex-direction: column;
        gap: 0;
    }
    
    .nav-link {
        padding: 15px;
        border-bottom: 1px solid var(--medium-gray);
    }
    
    .btn-signup {
        width: 100%;
        margin-top: 20px;
        justify-content: center;
    }
    
    .hamburger {
        display: flex;
        flex-direction: column;
        gap: 4px;
        cursor: pointer;
        z-index: 1001;
    }
    
    .hamburger span {
        width: 25px;
        height: 3px;
        background: var(--text-dark);
        transition: var(--transition);
    }
    
    .hamburger.active span:nth-child(1) {
        transform: rotate(45deg) translate(6px, 6px);
    }
    
    .hamburger.active span:nth-child(2) {
        opacity: 0;
    }
    
    .hamburger.active span:nth-child(3) {
        transform: rotate(-45deg) translate(6px, -6px);
    }
}

/* ==========================================================================
   FOOTER RESPONSIVE FIXES
   ========================================================================== */
.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: clamp(30px, 4vw, 40px);
}

.footer-bottom {
    display: flex;
    flex-direction: column;
    gap: 20px;
    text-align: center;
    padding-top: 30px;
    margin-top: 40px;
    border-top: 1px solid var(--medium-gray);
}

@media (min-width: 768px) {
    .footer-bottom {
        flex-direction: row;
        justify-content: space-between;
        align-items: center;
        text-align: left;
    }
}

/* ==========================================================================
   PERFORMANCE OPTIMIZATIONS
   ========================================================================== */
@media (hover: none) {
    .gallery-overlay {
        opacity: 1;
        background: rgba(0, 0, 0, 0.5);
    }
    
    .overlay-content {
        transform: translateY(0);
    }
    
    .range-tab:hover,
    .filter-btn:hover,
    .btn-primary:hover,
    .btn-secondary:hover {
        transform: none;
    }
}

/* Touch device optimizations */
@media (pointer: coarse) {
    button,
    .btn-primary,
    .btn-secondary,
    .range-tab,
    .filter-btn {
        min-height: 44px;
        min-width: 44px;
    }
    
    input,
    select {
        font-size: 16px; /* Prevents iOS zoom on focus */
    }
}

/* Landscape mode optimizations */
@media (max-height: 500px) and (orientation: landscape) {
    .utl-projects-hero {
        padding: 60px 0;
    }
    
    .hero-stats {
        grid-template-columns: repeat(4, 1fr);
    }
    
    .gallery-image {
        height: 150px;
    }
}

/* Very small screens */
@media (max-width: 360px) {
    .container {
        padding: 0 15px;
    }
    
    .range-tab {
        min-width: 100%;
        border-right: none;
    }
    
    .hero-stats {
        grid-template-columns: 1fr;
    }
    
    .cta-features {
        grid-template-columns: 1fr;
    }
}