/* ===== CSS Variables ===== */
:root {
    --primary: #1a3a5c;
    --primary-dark: #0f2640;
    --primary-light: #2c5282;
    --secondary: #c9a84c;
    --secondary-light: #e0c068;
    --accent: #d4af37;
    --text-dark: #1a202c;
    --text-medium: #4a5568;
    --text-light: #718096;
    --bg-white: #ffffff;
    --bg-light: #f7fafc;
    --bg-cream: #faf8f5;
    --bg-dark: #1a202c;
    --border: #e2e8f0;
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.08);
    --shadow-md: 0 4px 12px rgba(0,0,0,0.1);
    --shadow-lg: 0 10px 30px rgba(0,0,0,0.12);
    --shadow-xl: 0 20px 50px rgba(0,0,0,0.15);
    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --transition: all 0.3s ease;
    --font-primary: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
}

body {
    font-family: var(--font-primary);
    color: var(--text-dark);
    line-height: 1.7;
    overflow-x: hidden;
    background: var(--bg-white);
}

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

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

ul {
    list-style: none;
}

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

.section {
    padding: 80px 0;
}

/* ===== Preloader ===== */
#preloader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--primary-dark);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 99999;
    transition: opacity 0.5s ease, visibility 0.5s ease;
}

#preloader.hidden {
    opacity: 0;
    visibility: hidden;
}

.loader {
    text-align: center;
    color: var(--secondary);
}

.loader .scales-icon {
    font-size: 60px;
    animation: pulse 1.5s ease-in-out infinite;
}

.loader p {
    font-size: 18px;
    margin-top: 15px;
    letter-spacing: 3px;
    text-transform: uppercase;
    color: white;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); opacity: 1; }
    50% { transform: scale(1.1); opacity: 0.7; }
}

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

#header.scrolled {
    box-shadow: var(--shadow-md);
    background: rgba(255, 255, 255, 0.99);
}

.header-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 12px 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
}

.logo .logo-icon {
    font-size: 36px;
    color: var(--secondary);
}

.logo-text h1 {
    font-size: 18px;
    color: var(--primary);
    font-weight: 700;
    line-height: 1.2;
}

.logo-text p {
    font-size: 12px;
    color: var(--text-light);
    font-weight: 500;
}

#navbar ul {
    display: flex;
    gap: 28px;
}

#navbar ul li a {
    font-size: 14px;
    font-weight: 500;
    color: var(--text-medium);
    padding: 8px 0;
    position: relative;
}

#navbar ul li a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--secondary);
    transition: width 0.3s ease;
}

#navbar ul li a:hover,
#navbar ul li a.active {
    color: var(--primary);
}

#navbar ul li a:hover::after,
#navbar ul li a.active::after {
    width: 100%;
}

.header-cta .btn-call-header {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: var(--primary);
    color: white;
    padding: 10px 20px;
    border-radius: 50px;
    font-size: 13px;
    font-weight: 600;
    transition: var(--transition);
}

.header-cta .btn-call-header:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: 5px;
    z-index: 1001;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background: var(--primary);
    border-radius: 3px;
    transition: var(--transition);
}

.hamburger.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 6px);
}

.hamburger.active span:nth-child(2) {
    opacity: 0;
}

.hamburger.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -6px);
}

/* ===== Hero Slider ===== */
.hero-slider {
    position: relative;
    height: 100vh;
    min-height: 600px;
    overflow: hidden;
    margin-top: 70px;
}

.slider-wrapper {
    position: relative;
    width: 100%;
    height: 100%;
}

.slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    opacity: 0;
    transition: opacity 1s ease;
}

.slide.active {
    opacity: 1;
}

.slide-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(26, 58, 92, 0.85) 0%, rgba(15, 38, 64, 0.7) 100%);
}

.slide-content {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
    color: white;
    width: 90%;
    max-width: 700px;
    z-index: 2;
}

.slide-content h2 {
    font-size: 48px;
    font-weight: 700;
    margin-bottom: 20px;
    line-height: 1.2;
    text-shadow: 0 2px 10px rgba(0,0,0,0.3);
}

.slide-content p {
    font-size: 18px;
    margin-bottom: 30px;
    opacity: 0.9;
    line-height: 1.6;
}

.btn-primary {
    display: inline-block;
    background: var(--secondary);
    color: var(--primary-dark);
    padding: 14px 36px;
    border-radius: 50px;
    font-weight: 600;
    font-size: 15px;
    transition: var(--transition);
    border: 2px solid var(--secondary);
}

.btn-primary:hover {
    background: transparent;
    color: white;
    border-color: white;
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(201, 168, 76, 0.3);
}

.slider-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(255, 255, 255, 0.15);
    border: 2px solid rgba(255, 255, 255, 0.3);
    color: white;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    font-size: 20px;
    cursor: pointer;
    transition: var(--transition);
    z-index: 10;
    display: flex;
    align-items: center;
    justify-content: center;
}

.slider-btn:hover {
    background: rgba(255, 255, 255, 0.3);
    border-color: white;
}

.prev-btn { left: 30px; }
.next-btn { right: 30px; }

.slider-dots {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 10px;
    z-index: 10;
}

.slider-dots .dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.4);
    cursor: pointer;
    transition: var(--transition);
}

.slider-dots .dot.active {
    background: var(--secondary);
    transform: scale(1.3);
}

/* ===== Section Header ===== */
.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-header h2 {
    font-size: 36px;
    color: var(--primary);
    font-weight: 700;
    margin-bottom: 12px;
}

.section-header .underline {
    width: 60px;
    height: 4px;
    background: var(--secondary);
    margin: 0 auto 15px;
    border-radius: 2px;
}

.section-header p {
    font-size: 16px;
    color: var(--text-light);
    max-width: 600px;
    margin: 0 auto;
}

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

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 60px;
    align-items: center;
}

.about-image {
    position: relative;
}

.about-image img {
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    width: 100%;
    height: 500px;
    object-fit: cover;
}

.experience-badge {
    position: absolute;
    bottom: -20px;
    right: -20px;
    background: var(--secondary);
    color: var(--primary-dark);
    padding: 20px;
    border-radius: var(--radius-md);
    text-align: center;
    box-shadow: var(--shadow-lg);
}

.experience-badge .exp-number {
    display: block;
    font-size: 36px;
    font-weight: 800;
}

.experience-badge .exp-text {
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.about-content h3 {
    font-size: 28px;
    color: var(--primary);
    margin-bottom: 15px;
}

.about-lead {
    font-size: 16px;
    color: var(--text-medium);
    margin-bottom: 15px;
    line-height: 1.8;
}

.about-content p {
    color: var(--text-light);
    margin-bottom: 12px;
    line-height: 1.8;
}

.about-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    margin: 30px 0;
    padding: 25px 0;
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
}

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

.stat-number {
    display: block;
    font-size: 32px;
    font-weight: 800;
    color: var(--primary);
}

.stat-label {
    font-size: 12px;
    color: var(--text-light);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

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

.services-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 25px;
}

.service-card {
    background: white;
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    border: 1px solid var(--border);
}

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

.service-card .service-icon {
    position: absolute;
    top: 15px;
    right: 15px;
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.9);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    z-index: 2;
}

.service-card {
    position: relative;
}

.service-card img {
    width: 100%;
    height: 180px;
    object-fit: cover;
    transition: var(--transition);
}

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

.service-card h3 {
    font-size: 16px;
    color: var(--primary);
    padding: 18px 18px 8px;
    font-weight: 600;
}

.service-card p {
    font-size: 13px;
    color: var(--text-light);
    padding: 0 18px 20px;
    line-height: 1.7;
}

/* ===== Gallery Section ===== */
.gallery-section {
    background: var(--bg-light);
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.gallery-item {
    position: relative;
    border-radius: var(--radius-md);
    overflow: hidden;
    cursor: pointer;
    aspect-ratio: 16/10;
}

.gallery-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.4s ease;
}

.gallery-item:hover img {
    transform: scale(1.08);
}

.gallery-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(26, 58, 92, 0.8);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.3s ease;
}

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

.gallery-zoom {
    font-size: 36px;
    color: white;
    margin-bottom: 10px;
}

.gallery-overlay p {
    color: white;
    font-size: 14px;
    font-weight: 500;
}

/* Gallery Popup */
.gallery-popup {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 10000;
    display: none;
    align-items: center;
    justify-content: center;
}

.gallery-popup.active {
    display: flex;
}

.popup-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.9);
    animation: fadeIn 0.3s ease;
}

.popup-content {
    position: relative;
    max-width: 90%;
    max-height: 90vh;
    z-index: 2;
    animation: scaleIn 0.3s ease;
}

.popup-content img {
    max-width: 100%;
    max-height: 80vh;
    border-radius: var(--radius-md);
    object-fit: contain;
}

.popup-content p {
    text-align: center;
    color: white;
    margin-top: 15px;
    font-size: 16px;
}

.popup-close {
    position: absolute;
    top: -40px;
    right: 0;
    background: none;
    border: none;
    color: white;
    font-size: 36px;
    cursor: pointer;
    transition: var(--transition);
}

.popup-close:hover {
    color: var(--secondary);
    transform: rotate(90deg);
}

.popup-prev,
.popup-next {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(255, 255, 255, 0.15);
    border: 2px solid rgba(255, 255, 255, 0.3);
    color: white;
    width: 45px;
    height: 45px;
    border-radius: 50%;
    font-size: 18px;
    cursor: pointer;
    transition: var(--transition);
}

.popup-prev { left: -60px; }
.popup-next { right: -60px; }

.popup-prev:hover,
.popup-next:hover {
    background: rgba(255, 255, 255, 0.3);
}

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

@keyframes scaleIn {
    from { transform: scale(0.8); opacity: 0; }
    to { transform: scale(1); opacity: 1; }
}

/* ===== Why Us Section ===== */
.why-us-section {
    background: var(--bg-white);
}

.why-us-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.why-card {
    text-align: center;
    padding: 40px 25px;
    border-radius: var(--radius-md);
    background: var(--bg-light);
    border: 1px solid var(--border);
    transition: var(--transition);
}

.why-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
    border-color: var(--secondary);
    background: white;
}

.why-icon {
    font-size: 42px;
    margin-bottom: 18px;
    display: block;
}

.why-card h3 {
    font-size: 18px;
    color: var(--primary);
    margin-bottom: 12px;
    font-weight: 600;
}

.why-card p {
    font-size: 14px;
    color: var(--text-light);
    line-height: 1.7;
}

/* ===== FAQ Section ===== */
.faq-section {
    background: var(--bg-cream);
}

.faq-container {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    background: white;
    border-radius: var(--radius-md);
    margin-bottom: 12px;
    overflow: hidden;
    border: 1px solid var(--border);
    transition: var(--transition);
}

.faq-item:hover {
    border-color: var(--secondary);
}

.faq-item.active {
    box-shadow: var(--shadow-md);
    border-color: var(--secondary);
}

.faq-question {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 25px;
    cursor: pointer;
    transition: var(--transition);
}

.faq-question h3 {
    font-size: 15px;
    color: var(--text-dark);
    font-weight: 600;
    flex: 1;
    padding-right: 15px;
}

.faq-toggle {
    font-size: 24px;
    color: var(--secondary);
    font-weight: 700;
    transition: transform 0.3s ease;
    min-width: 30px;
    text-align: center;
}

.faq-item.active .faq-toggle {
    transform: rotate(45deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease, padding 0.4s ease;
}

.faq-item.active .faq-answer {
    max-height: 300px;
    padding: 0 25px 20px;
}

.faq-answer p {
    font-size: 14px;
    color: var(--text-light);
    line-height: 1.8;
}

/* ===== Clients Section ===== */
.clients-section {
    background: var(--bg-white);
}

.testimonials-slider {
    position: relative;
    max-width: 700px;
    margin: 0 auto;
    min-height: 200px;
}

.testimonial {
    display: none;
    animation: fadeIn 0.5s ease;
}

.testimonial.active {
    display: block;
}

.testimonial-text {
    background: var(--bg-light);
    padding: 30px;
    border-radius: var(--radius-md);
    margin-bottom: 20px;
    position: relative;
    border-left: 4px solid var(--secondary);
}

.testimonial-text p {
    font-size: 16px;
    color: var(--text-medium);
    font-style: italic;
    line-height: 1.8;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 15px;
    padding-left: 10px;
}

.author-avatar {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: var(--primary);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 16px;
}

.author-info h4 {
    font-size: 16px;
    color: var(--text-dark);
}

.author-info p {
    font-size: 13px;
    color: var(--text-light);
}

.testimonial-dots {
    display: flex;
    justify-content: center;
    gap: 8px;
    margin-top: 25px;
}

.testimonial-dots .t-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--border);
    cursor: pointer;
    transition: var(--transition);
}

.testimonial-dots .t-dot.active {
    background: var(--secondary);
    transform: scale(1.3);
}

.clients-logos {
    margin-top: 60px;
    text-align: center;
}

.clients-logos h3 {
    font-size: 22px;
    color: var(--primary);
    margin-bottom: 30px;
}

.client-categories {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 20px;
}

.client-cat {
    text-align: center;
    padding: 25px 15px;
    border-radius: var(--radius-md);
    background: var(--bg-light);
    border: 1px solid var(--border);
    transition: var(--transition);
}

.client-cat:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
    border-color: var(--secondary);
}

.cat-icon {
    font-size: 32px;
    display: block;
    margin-bottom: 10px;
}

.client-cat p {
    font-size: 12px;
    color: var(--text-medium);
    font-weight: 500;
}

/* ===== Contact Section ===== */
.contact-section {
    background: var(--bg-light);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 40px;
}

.info-card {
    background: white;
    padding: 25px;
    border-radius: var(--radius-md);
    margin-bottom: 15px;
    border: 1px solid var(--border);
    transition: var(--transition);
}

.info-card:hover {
    border-color: var(--secondary);
    box-shadow: var(--shadow-sm);
}

.info-icon {
    font-size: 24px;
    margin-bottom: 10px;
    display: block;
}

.info-card h3 {
    font-size: 16px;
    color: var(--primary);
    margin-bottom: 8px;
    font-weight: 600;
}

.info-card p {
    font-size: 14px;
    color: var(--text-light);
    line-height: 1.7;
}

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

.info-card a:hover {
    color: var(--secondary);
}

.map-container {
    margin-top: 15px;
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

/* Contact Form */
.contact-form-wrapper {
    background: white;
    padding: 40px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border);
}

.contact-form h3 {
    font-size: 24px;
    color: var(--primary);
    margin-bottom: 5px;
}

.form-subtitle {
    font-size: 14px;
    color: var(--text-light);
    margin-bottom: 25px;
}

.form-group {
    margin-bottom: 18px;
}

.form-group label {
    display: block;
    font-size: 13px;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 6px;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    font-size: 14px;
    font-family: var(--font-primary);
    transition: var(--transition);
    background: var(--bg-light);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--secondary);
    box-shadow: 0 0 0 3px rgba(201, 168, 76, 0.1);
    background: white;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 15px;
}

.form-error {
    font-size: 12px;
    color: #e53e3e;
    margin-top: 4px;
    display: block;
}

.btn-submit {
    width: 100%;
    padding: 14px;
    background: var(--primary);
    color: white;
    border: none;
    border-radius: var(--radius-sm);
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    font-family: var(--font-primary);
}

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

.form-success {
    text-align: center;
    padding: 20px;
    background: #f0fff4;
    border: 1px solid #c6f6d5;
    border-radius: var(--radius-sm);
    margin-top: 15px;
}

.success-icon {
    font-size: 36px;
    color: #38a169;
    display: block;
    margin-bottom: 10px;
}

.form-success p {
    color: #276749;
    font-size: 14px;
}

/* ===== Footer ===== */
.footer {
    background: var(--bg-dark);
    color: white;
    padding: 60px 0 0;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
    gap: 40px;
    padding-bottom: 40px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 15px;
}

.footer-logo .logo-icon {
    font-size: 30px;
    color: var(--secondary);
}

.footer-logo h3 {
    font-size: 18px;
    font-weight: 700;
}

.footer-logo p {
    font-size: 12px;
    color: var(--text-light);
}

.footer-desc {
    font-size: 14px;
    color: #a0aec0;
    line-height: 1.8;
}

.footer-links h4,
.footer-services h4,
.footer-contact h4 {
    font-size: 16px;
    margin-bottom: 20px;
    color: var(--secondary);
}

.footer-links ul li,
.footer-services ul li {
    margin-bottom: 10px;
}

.footer-links ul li a,
.footer-services ul li a {
    font-size: 14px;
    color: #a0aec0;
    transition: var(--transition);
}

.footer-links ul li a:hover,
.footer-services ul li a:hover {
    color: var(--secondary);
    padding-left: 5px;
}

.footer-contact p {
    font-size: 13px;
    color: #a0aec0;
    margin-bottom: 12px;
    display: flex;
    align-items: flex-start;
    gap: 8px;
}

.footer-contact a {
    color: #a0aec0;
}

.footer-contact a:hover {
    color: var(--secondary);
}

.footer-bottom {
    text-align: center;
    padding: 20px 0;
    margin-top: 20px;
}

.footer-bottom p {
    font-size: 13px;
    color: #718096;
}

/* ===== Floating Buttons ===== */
.floating-buttons {
    position: fixed;
    bottom: 30px;
    right: 30px;
    display: flex;
    flex-direction: column;
    gap: 12px;
    z-index: 999;
}

.float-btn {
    width: 55px;
    height: 55px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 24px;
    box-shadow: var(--shadow-lg);
    transition: var(--transition);
}

.float-btn:hover {
    transform: scale(1.1) translateY(-3px);
    box-shadow: var(--shadow-xl);
}

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

.whatsapp-btn {
    background: #25d366;
}

/* ===== Back to Top ===== */
.back-to-top {
    position: fixed;
    bottom: 30px;
    left: 30px;
    width: 45px;
    height: 45px;
    border-radius: 50%;
    background: var(--primary);
    color: white;
    border: none;
    font-size: 22px;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    z-index: 999;
    box-shadow: var(--shadow-md);
}

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

.back-to-top:hover {
    background: var(--secondary);
    transform: translateY(-3px);
}

/* ===== Scroll Animations ===== */
.animate-on-scroll {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

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

/* ===== Responsive Design ===== */
@media (max-width: 1024px) {
    .services-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .about-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .about-image img {
        height: 400px;
    }
    
    .client-categories {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .section {
        padding: 60px 0;
    }
    
    .header-cta {
        display: none;
    }
    
    .hamburger {
        display: flex;
    }
    
    #navbar {
        position: fixed;
        top: 0;
        right: -100%;
        width: 280px;
        height: 100vh;
        background: white;
        padding: 80px 30px 30px;
        box-shadow: var(--shadow-xl);
        transition: right 0.3s ease;
        z-index: 1000;
    }
    
    #navbar.active {
        right: 0;
    }
    
    #navbar ul {
        flex-direction: column;
        gap: 0;
    }
    
    #navbar ul li a {
        display: block;
        padding: 15px 0;
        font-size: 16px;
        border-bottom: 1px solid var(--border);
    }
    
    .hero-slider {
        height: 80vh;
        min-height: 500px;
    }
    
    .slide-content h2 {
        font-size: 30px;
    }
    
    .slide-content p {
        font-size: 15px;
    }
    
    .slider-btn {
        width: 40px;
        height: 40px;
        font-size: 16px;
    }
    
    .prev-btn { left: 15px; }
    .next-btn { right: 15px; }
    
    .section-header h2 {
        font-size: 28px;
    }
    
    .about-stats {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .services-grid {
        grid-template-columns: 1fr;
    }
    
    .gallery-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .why-us-grid {
        grid-template-columns: 1fr;
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .client-categories {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    .popup-prev { left: -30px; }
    .popup-next { right: -30px; }
    
    .floating-buttons {
        bottom: 20px;
        right: 20px;
    }
    
    .float-btn {
        width: 50px;
        height: 50px;
    }
    
    .contact-form-wrapper {
        padding: 25px;
    }
}

@media (max-width: 480px) {
    .hero-slider {
        height: 70vh;
        min-height: 450px;
        margin-top: 60px;
    }
    
    .slide-content h2 {
        font-size: 24px;
    }
    
    .slide-content p {
        font-size: 14px;
    }
    
    .btn-primary {
        padding: 12px 28px;
        font-size: 14px;
    }
    
    .about-image img {
        height: 300px;
    }
    
    .experience-badge {
        bottom: -10px;
        right: 10px;
        padding: 15px;
    }
    
    .experience-badge .exp-number {
        font-size: 28px;
    }
    
    .gallery-grid {
        grid-template-columns: 1fr;
    }
    
    .client-categories {
        grid-template-columns: 1fr 1fr;
    }
    
    .stat-number {
        font-size: 26px;
    }
    
    .popup-prev,
    .popup-next {
        top: auto;
        bottom: -50px;
        transform: none;
    }
    
    .popup-prev { left: calc(50% - 55px); }
    .popup-next { right: calc(50% - 55px); }
}