/* ========== CSS Variables ========== */
:root {
    --primary: #1a237e;
    --primary-light: #3949ab;
    --primary-dark: #0d1642;
    --secondary: #ff6f00;
    --secondary-light: #ff9100;
    --accent: #00c853;
    --white: #ffffff;
    --light: #f5f7fa;
    --gray: #6b7280;
    --dark: #1f2937;
    --shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 40px rgba(0, 0, 0, 0.15);
    --radius: 12px;
    --transition: all 0.3s ease;
}

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

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    color: var(--dark);
    line-height: 1.6;
    overflow-x: hidden;
}

a {
    text-decoration: none;
    color: inherit;
}

ul {
    list-style: none;
}

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

.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(--white);
}

.battery-loader {
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
}

.battery-body {
    width: 80px;
    height: 40px;
    border: 3px solid var(--white);
    border-radius: 6px;
    padding: 4px;
    position: relative;
}

.battery-fill {
    height: 100%;
    background: var(--secondary);
    border-radius: 3px;
    animation: batteryCharge 1.5s ease-in-out infinite;
}

.battery-tip {
    width: 8px;
    height: 20px;
    background: var(--white);
    border-radius: 0 3px 3px 0;
    margin-left: 2px;
}

@keyframes batteryCharge {
    0% { width: 10%; }
    50% { width: 90%; }
    100% { width: 10%; }
}

.loader p {
    font-size: 14px;
    letter-spacing: 2px;
    text-transform: uppercase;
    animation: pulse 1.5s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 0.5; }
    50% { opacity: 1; }
}

/* ========== Header ========== */
#header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    transition: var(--transition);
}

.top-bar {
    background: var(--primary-dark);
    padding: 8px 0;
    font-size: 13px;
    color: var(--white);
    transition: var(--transition);
}

.top-bar-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.top-bar-left {
    display: flex;
    gap: 20px;
}

.top-bar-left span,
.top-bar-right span {
    display: flex;
    align-items: center;
    gap: 5px;
}

.navbar {
    background: var(--white);
    padding: 12px 0;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

#header.scrolled .top-bar {
    display: none;
}

#header.scrolled .navbar {
    padding: 8px 0;
}

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

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

.logo-icon {
    font-size: 32px;
    background: linear-gradient(135deg, var(--secondary), var(--secondary-light));
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 10px;
    box-shadow: 0 4px 12px rgba(255, 111, 0, 0.3);
}

.logo-text {
    display: flex;
    flex-direction: column;
}

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

.logo-tagline {
    font-size: 11px;
    color: var(--secondary);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.nav-links {
    display: flex;
    gap: 28px;
}

.nav-links a {
    font-size: 14px;
    font-weight: 500;
    color: var(--dark);
    position: relative;
    padding: 5px 0;
    transition: var(--transition);
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--secondary);
    transition: var(--transition);
}

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

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

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

.hamburger span {
    width: 28px;
    height: 3px;
    background: var(--dark);
    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 {
    margin-top: 95px;
    position: relative;
    overflow: hidden;
}

.slider-container {
    position: relative;
    height: 600px;
}

.slides {
    position: relative;
    width: 100%;
    height: 100%;
}

.slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    transition: opacity 0.8s ease;
}

.slide.active {
    opacity: 1;
}

.slide img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.slide-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(26, 35, 126, 0.8), rgba(13, 22, 66, 0.6));
}

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

.slide-content h1 {
    font-size: 48px;
    font-weight: 700;
    margin-bottom: 16px;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.slide-content p {
    font-size: 20px;
    margin-bottom: 30px;
    opacity: 0.9;
}

.btn-primary {
    display: inline-block;
    background: linear-gradient(135deg, var(--secondary), var(--secondary-light));
    color: var(--white);
    padding: 14px 36px;
    border-radius: 50px;
    font-size: 16px;
    font-weight: 600;
    transition: var(--transition);
    box-shadow: 0 4px 15px rgba(255, 111, 0, 0.4);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(255, 111, 0, 0.5);
}

.slider-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(5px);
    border: 2px solid rgba(255, 255, 255, 0.4);
    color: var(--white);
    width: 50px;
    height: 50px;
    border-radius: 50%;
    font-size: 20px;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
}

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

.prev-btn {
    left: 20px;
}

.next-btn {
    right: 20px;
}

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

.dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.5);
    cursor: pointer;
    transition: var(--transition);
}

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

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

.section-header h2 {
    font-size: 38px;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 12px;
}

.section-line {
    width: 60px;
    height: 4px;
    background: linear-gradient(135deg, var(--secondary), var(--secondary-light));
    margin: 0 auto 16px;
    border-radius: 2px;
}

.section-header p {
    font-size: 16px;
    color: var(--gray);
}

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

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

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

.about-image img {
    width: 100%;
    height: 400px;
    object-fit: cover;
}

.experience-badge {
    position: absolute;
    bottom: 20px;
    right: 20px;
    background: linear-gradient(135deg, var(--secondary), var(--secondary-light));
    color: var(--white);
    padding: 16px 24px;
    border-radius: var(--radius);
    text-align: center;
    box-shadow: 0 4px 15px rgba(255, 111, 0, 0.4);
}

.exp-number {
    display: block;
    font-size: 32px;
    font-weight: 700;
}

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

.about-content h3 {
    font-size: 26px;
    color: var(--primary);
    margin-bottom: 16px;
}

.about-content p {
    color: var(--gray);
    margin-bottom: 16px;
    line-height: 1.8;
}

.about-features {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
    margin: 24px 0;
}

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

.feature-icon {
    width: 28px;
    height: 28px;
    background: rgba(0, 200, 83, 0.1);
    color: var(--accent);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    font-weight: 700;
    flex-shrink: 0;
}

.about-feature span {
    font-size: 14px;
    font-weight: 500;
}

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

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

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

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

.service-image {
    height: 200px;
    overflow: hidden;
}

.service-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

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

.service-content {
    padding: 24px;
}

.service-icon {
    font-size: 36px;
    margin-bottom: 12px;
}

.service-content h3 {
    font-size: 20px;
    color: var(--primary);
    margin-bottom: 12px;
}

.service-content p {
    font-size: 14px;
    color: var(--gray);
    line-height: 1.7;
    margin-bottom: 16px;
}

.service-list {
    list-style: none;
}

.service-list li {
    font-size: 13px;
    color: var(--dark);
    padding: 4px 0;
    padding-left: 20px;
    position: relative;
}

.service-list li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--accent);
    font-weight: 700;
}

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

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

.gallery-item {
    position: relative;
    border-radius: var(--radius);
    overflow: hidden;
    cursor: pointer;
    height: 250px;
    box-shadow: var(--shadow);
}

.gallery-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

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

.gallery-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(26, 35, 126, 0.7);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: var(--transition);
}

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

.gallery-icon {
    font-size: 36px;
    margin-bottom: 8px;
}

.gallery-overlay p {
    color: var(--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);
}

.popup-content {
    position: relative;
    max-width: 900px;
    width: 90%;
    text-align: center;
}

.popup-content img {
    width: 100%;
    max-height: 70vh;
    object-fit: contain;
    border-radius: var(--radius);
}

.popup-close {
    position: absolute;
    top: -50px;
    right: 0;
    background: none;
    border: none;
    color: var(--white);
    font-size: 36px;
    cursor: pointer;
    transition: var(--transition);
}

.popup-close:hover {
    color: var(--secondary);
}

.popup-nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(255, 255, 255, 0.2);
    border: 2px solid rgba(255, 255, 255, 0.4);
    color: var(--white);
    width: 50px;
    height: 50px;
    border-radius: 50%;
    font-size: 20px;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
}

.popup-nav:hover {
    background: var(--secondary);
    border-color: var(--secondary);
}

.popup-prev {
    left: -70px;
}

.popup-next {
    right: -70px;
}

.popup-caption {
    color: var(--white);
    margin-top: 16px;
    font-size: 16px;
}

/* ========== Why Us Section ========== */
.why-us-section {
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    color: var(--white);
}

.why-us-section .section-header h2 {
    color: var(--white);
}

.why-us-section .section-header p {
    color: rgba(255, 255, 255, 0.7);
}

.why-us-section .section-line {
    background: var(--secondary);
}

.why-us-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin-bottom: 60px;
}

.why-card {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--radius);
    padding: 32px;
    text-align: center;
    transition: var(--transition);
}

.why-card:hover {
    background: rgba(255, 255, 255, 0.15);
    transform: translateY(-5px);
}

.why-icon {
    font-size: 48px;
    margin-bottom: 16px;
}

.why-card h3 {
    font-size: 20px;
    margin-bottom: 12px;
}

.why-card p {
    font-size: 14px;
    opacity: 0.8;
    line-height: 1.7;
}

.stats-bar {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--radius);
    padding: 40px;
}

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

.stat-number {
    font-size: 42px;
    font-weight: 700;
    color: var(--secondary);
}

.stat-label {
    display: block;
    font-size: 14px;
    opacity: 0.8;
    margin-top: 8px;
}

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

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

.faq-item {
    background: var(--white);
    border-radius: var(--radius);
    margin-bottom: 16px;
    box-shadow: var(--shadow);
    overflow: hidden;
    transition: var(--transition);
}

.faq-item:hover {
    box-shadow: var(--shadow-lg);
}

.faq-question {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 24px;
    cursor: pointer;
    transition: var(--transition);
}

.faq-question h3 {
    font-size: 16px;
    color: var(--dark);
    font-weight: 600;
}

.faq-toggle {
    font-size: 24px;
    color: var(--secondary);
    font-weight: 700;
    transition: var(--transition);
    flex-shrink: 0;
    margin-left: 16px;
}

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

.faq-item.active .faq-question {
    background: var(--primary);
}

.faq-item.active .faq-question h3 {
    color: var(--white);
}

.faq-item.active .faq-toggle {
    color: var(--white);
}

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

.faq-answer p {
    padding: 0 24px 20px;
    color: var(--gray);
    line-height: 1.8;
    font-size: 14px;
}

.faq-item.active .faq-answer {
    max-height: 300px;
}

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

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

.client-card {
    background: var(--light);
    border-radius: var(--radius);
    padding: 32px;
    text-align: center;
    transition: var(--transition);
    border: 1px solid transparent;
}

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

.client-avatar {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    font-weight: 700;
    margin: 0 auto 16px;
}

.client-stars {
    color: var(--secondary);
    font-size: 18px;
    margin-bottom: 12px;
}

.client-review {
    font-size: 14px;
    color: var(--gray);
    line-height: 1.7;
    margin-bottom: 16px;
    font-style: italic;
}

.client-name {
    font-size: 16px;
    color: var(--primary);
    margin-bottom: 4px;
}

.client-type {
    font-size: 12px;
    color: var(--gray);
}

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

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

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.contact-card {
    background: var(--white);
    border-radius: var(--radius);
    padding: 24px;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

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

.contact-icon {
    font-size: 28px;
    margin-bottom: 8px;
}

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

.contact-card p {
    font-size: 14px;
    color: var(--gray);
    line-height: 1.6;
}

.contact-card a {
    color: var(--secondary);
    font-weight: 600;
}

.contact-card a:hover {
    color: var(--primary);
}

.map-container {
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow);
}

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

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

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    font-size: 14px;
    font-weight: 600;
    color: var(--dark);
    margin-bottom: 6px;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 14px 16px;
    border: 2px solid #e5e7eb;
    border-radius: 8px;
    font-size: 14px;
    font-family: inherit;
    transition: var(--transition);
    background: var(--light);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
    background: var(--white);
    box-shadow: 0 0 0 4px rgba(26, 35, 126, 0.1);
}

.form-group input.error,
.form-group textarea.error {
    border-color: #ef4444;
}

.form-error {
    font-size: 12px;
    color: #ef4444;
    margin-top: 4px;
    display: block;
}

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

.btn-submit {
    width: 100%;
    padding: 16px;
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    color: var(--white);
    border: none;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    position: relative;
}

.btn-submit:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(26, 35, 126, 0.4);
}

.btn-submit:active {
    transform: translateY(0);
}

.btn-loader {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(255, 255, 255, 0.3);
    border-top-color: var(--white);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.form-success {
    text-align: center;
    padding: 24px;
    background: rgba(0, 200, 83, 0.1);
    border-radius: 8px;
    margin-top: 16px;
}

.success-icon {
    width: 50px;
    height: 50px;
    background: var(--accent);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    font-weight: 700;
    margin: 0 auto 12px;
}

.form-success p {
    color: var(--dark);
    font-size: 14px;
}

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

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
    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: 16px;
}

.footer-logo .logo-icon {
    font-size: 24px;
    width: 40px;
    height: 40px;
}

.footer-logo .logo-name {
    color: var(--white);
    font-size: 16px;
}

.footer-col p {
    font-size: 14px;
    opacity: 0.7;
    line-height: 1.8;
}

.footer-col h3 {
    font-size: 18px;
    margin-bottom: 20px;
    position: relative;
    padding-bottom: 10px;
}

.footer-col h3::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 30px;
    height: 3px;
    background: var(--secondary);
    border-radius: 2px;
}

.footer-col ul li {
    margin-bottom: 10px;
}

.footer-col ul li a {
    font-size: 14px;
    opacity: 0.7;
    transition: var(--transition);
}

.footer-col ul li a:hover {
    opacity: 1;
    color: var(--secondary);
    padding-left: 5px;
}

.footer-contact li {
    font-size: 14px;
    opacity: 0.7;
    line-height: 1.8;
}

.footer-contact li a {
    color: var(--secondary);
    opacity: 1;
}

.footer-bottom {
    text-align: center;
    padding: 20px 0;
    font-size: 13px;
    opacity: 0.6;
}

/* ========== Floating Buttons ========== */
.floating-buttons {
    position: fixed;
    bottom: 30px;
    right: 30px;
    display: flex;
    flex-direction: column;
    gap: 16px;
    z-index: 999;
}

.float-btn {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    transition: var(--transition);
    box-shadow: var(--shadow-lg);
}

.float-btn:hover {
    transform: scale(1.1);
}

.call-btn {
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
}

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

.float-icon {
    font-size: 24px;
    z-index: 2;
}

.float-pulse {
    position: absolute;
    width: 100%;
    height: 100%;
    border-radius: 50%;
    animation: floatPulse 2s ease-in-out infinite;
}

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

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

@keyframes floatPulse {
    0% { transform: scale(1); opacity: 0.5; }
    50% { transform: scale(1.4); opacity: 0; }
    100% { transform: scale(1); opacity: 0; }
}

/* ========== Back to Top ========== */
.back-to-top {
    position: fixed;
    bottom: 30px;
    left: 30px;
    width: 48px;
    height: 48px;
    background: var(--primary);
    color: var(--white);
    border: none;
    border-radius: 50%;
    font-size: 20px;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    box-shadow: var(--shadow);
    z-index: 999;
}

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

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

/* ========== Animations ========== */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ========== Responsive ========== */
@media (max-width: 1024px) {
    .services-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .why-us-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .clients-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .section {
        padding: 60px 0;
    }

    .top-bar {
        display: none;
    }

    .hero-slider {
        margin-top: 72px;
    }

    .hamburger {
        display: flex;
    }

    .nav-links {
        position: fixed;
        top: 72px;
        left: 0;
        width: 100%;
        background: var(--white);
        flex-direction: column;
        padding: 20px;
        gap: 0;
        box-shadow: var(--shadow-lg);
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: var(--transition);
        z-index: 999;
    }

    .nav-links.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }

    .nav-links li {
        border-bottom: 1px solid #f0f0f0;
    }

    .nav-links a {
        display: block;
        padding: 14px 0;
        font-size: 16px;
    }

    .slider-container {
        height: 450px;
    }

    .slide-content h1 {
        font-size: 28px;
    }

    .slide-content p {
        font-size: 16px;
    }

    .about-grid {
        grid-template-columns: 1fr;
        gap: 30px;
    }

    .about-image img {
        height: 300px;
    }

    .services-grid {
        grid-template-columns: 1fr;
    }

    .gallery-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .why-us-grid {
        grid-template-columns: 1fr;
    }

    .stats-bar {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
        padding: 24px;
    }

    .stat-number {
        font-size: 32px;
    }

    .clients-grid {
        grid-template-columns: 1fr;
    }

    .contact-grid {
        grid-template-columns: 1fr;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        gap: 30px;
    }

    .section-header h2 {
        font-size: 28px;
    }

    .popup-prev {
        left: -10px;
    }

    .popup-next {
        right: -10px;
    }

    .floating-buttons {
        bottom: 20px;
        right: 20px;
    }

    .float-btn {
        width: 50px;
        height: 50px;
    }

    .back-to-top {
        bottom: 20px;
        left: 20px;
        width: 42px;
        height: 42px;
    }
}

@media (max-width: 480px) {
    .slider-container {
        height: 380px;
    }

    .slide-content h1 {
        font-size: 22px;
    }

    .slide-content p {
        font-size: 14px;
        margin-bottom: 20px;
    }

    .btn-primary {
        padding: 12px 28px;
        font-size: 14px;
    }

    .gallery-grid {
        grid-template-columns: 1fr;
    }

    .about-features {
        grid-template-columns: 1fr;
    }

    .stats-bar {
        grid-template-columns: 1fr;
    }

    .contact-form-container {
        padding: 24px;
    }
}