/* ===== CSS Variables ===== */
:root {
    --primary-color: #0066cc;
    --primary-dark: #004d99;
    --primary-light: #3399ff;
    --secondary-color: #ff6600;
    --secondary-dark: #cc5200;
    --accent-color: #00c9a7;
    --dark-color: #1a1a2e;
    --dark-secondary: #16213e;
    --light-color: #f8f9fa;
    --gray-color: #6c757d;
    --gray-light: #e9ecef;
    --white: #ffffff;
    --gradient-primary: linear-gradient(135deg, #0066cc 0%, #00c9a7 100%);
    --gradient-secondary: linear-gradient(135deg, #ff6600 0%, #ff9933 100%);
    --gradient-dark: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
    --shadow-sm: 0 2px 10px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 5px 25px rgba(0, 0, 0, 0.15);
    --shadow-lg: 0 10px 50px rgba(0, 0, 0, 0.2);
    --transition: all 0.3s ease;
    --border-radius: 10px;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Poppins', sans-serif;
    font-size: 16px;
    line-height: 1.6;
    color: var(--dark-color);
    background-color: var(--white);
    overflow-x: hidden;
}

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

ul {
    list-style: none;
}

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

button {
    cursor: pointer;
    border: none;
    outline: none;
    background: none;
    font-family: inherit;
}

input, textarea, select {
    font-family: inherit;
    font-size: inherit;
    outline: none;
    border: none;
}

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

/* ===== Preloader ===== */
.preloader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--gradient-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    transition: opacity 0.5s ease, visibility 0.5s ease;
}

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

.loader {
    width: 60px;
    height: 60px;
    border: 4px solid rgba(255, 255, 255, 0.3);
    border-top-color: var(--white);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

/* ===== Buttons ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 14px 32px;
    font-size: 15px;
    font-weight: 600;
    border-radius: 50px;
    transition: var(--transition);
    cursor: pointer;
}

.btn-primary {
    background: var(--gradient-secondary);
    color: var(--white);
    box-shadow: 0 4px 15px rgba(255, 102, 0, 0.4);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(255, 102, 0, 0.5);
}

.btn-outline {
    background: transparent;
    color: var(--white);
    border: 2px solid var(--white);
}

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

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

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

.btn-outline-white {
    background: transparent;
    color: var(--white);
    border: 2px solid var(--white);
}

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

.btn-block {
    width: 100%;
}

/* ===== Header ===== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    padding: 15px 0;
    transition: var(--transition);
}

.header.scrolled {
    background: var(--white);
    box-shadow: var(--shadow-md);
    padding: 10px 0;
}

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

.logo a {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 24px;
    color: var(--white);
}

.header.scrolled .logo a {
    color: var(--dark-color);
}

.logo i {
    font-size: 32px;
    color: var(--secondary-color);
}

.logo span {
    font-weight: 300;
}

.logo strong {
    font-weight: 700;
}

.nav-list {
    display: flex;
    gap: 35px;
}

.nav-list a {
    color: var(--white);
    font-weight: 500;
    position: relative;
    padding: 5px 0;
}

.header.scrolled .nav-list a {
    color: var(--dark-color);
}

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

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

.header-right {
    display: flex;
    align-items: center;
    gap: 20px;
}

.phone-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    background: var(--secondary-color);
    color: var(--white);
    border-radius: 50px;
    font-weight: 500;
}

.phone-btn:hover {
    background: var(--secondary-dark);
}

.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: 5px;
}

.mobile-menu-btn span {
    width: 25px;
    height: 3px;
    background: var(--white);
    border-radius: 3px;
    transition: var(--transition);
}

.header.scrolled .mobile-menu-btn span {
    background: var(--dark-color);
}

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

.mobile-menu-btn.active span:nth-child(2) {
    opacity: 0;
}

.mobile-menu-btn.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -6px);
}

/* Mobile Menu */
.mobile-menu {
    position: fixed;
    top: 70px;
    left: 0;
    width: 100%;
    background: var(--white);
    box-shadow: var(--shadow-md);
    padding: 20px;
    transform: translateY(-150%);
    transition: var(--transition);
    z-index: 999;
}

.mobile-menu.active {
    transform: translateY(0);
}

.mobile-menu ul {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.mobile-menu a {
    display: block;
    padding: 10px 15px;
    color: var(--dark-color);
    font-weight: 500;
    border-radius: var(--border-radius);
    transition: var(--transition);
}

.mobile-menu a:hover {
    background: var(--primary-color);
    color: var(--white);
}

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

.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(0, 102, 204, 0.85) 0%, rgba(0, 201, 167, 0.7) 100%);
}

.slide-content {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
    color: var(--white);
    width: 90%;
    max-width: 800px;
    z-index: 10;
}

.slide-content h1 {
    font-size: 56px;
    font-weight: 700;
    margin-bottom: 20px;
    line-height: 1.2;
    animation: fadeInUp 1s ease;
}

.slide-content p {
    font-size: 20px;
    margin-bottom: 35px;
    opacity: 0.9;
    animation: fadeInUp 1s ease 0.2s both;
}

.slide-btns {
    display: flex;
    gap: 15px;
    justify-content: center;
    flex-wrap: wrap;
    animation: fadeInUp 1s ease 0.4s both;
}

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

.slider-nav {
    position: absolute;
    top: 50%;
    left: 0;
    right: 0;
    transform: translateY(-50%);
    display: flex;
    justify-content: space-between;
    padding: 0 30px;
    z-index: 20;
}

.slider-nav button {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.2);
    color: var(--white);
    font-size: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
    backdrop-filter: blur(5px);
}

.slider-nav button:hover {
    background: var(--secondary-color);
}

.slider-dots {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 10px;
    z-index: 20;
}

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

.slider-dots .dot.active {
    background: var(--secondary-color);
    transform: scale(1.2);
}

/* ===== Features Strip ===== */
.features-strip {
    background: var(--gradient-dark);
    padding: 30px 0;
    margin-top: -1px;
    position: relative;
    z-index: 100;
}

.features-strip .container {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}

.feature-item {
    display: flex;
    align-items: center;
    gap: 15px;
    color: var(--white);
}

.feature-item i {
    font-size: 40px;
    color: var(--secondary-color);
}

.feature-item h4 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 3px;
}

.feature-item p {
    font-size: 13px;
    opacity: 0.8;
}

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

.section-header.light {
    color: var(--white);
}

.section-header .subtitle {
    display: inline-block;
    font-size: 14px;
    font-weight: 600;
    color: var(--secondary-color);
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: 10px;
}

.section-header h2 {
    font-size: 42px;
    font-weight: 700;
    margin-bottom: 15px;
    color: var(--dark-color);
}

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

.section-header p {
    font-size: 17px;
    color: var(--gray-color);
    max-width: 600px;
    margin: 0 auto;
}

.section-header.light p {
    color: rgba(255, 255, 255, 0.8);
}

/* ===== Services Section ===== */
.services-section {
    padding: 100px 0;
    background: var(--light-color);
}

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

.service-card {
    background: var(--white);
    padding: 40px 30px;
    border-radius: var(--border-radius);
    text-align: center;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

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

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

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

.service-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 25px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

.service-icon i {
    font-size: 35px;
    color: var(--white);
}

.service-card:hover .service-icon {
    transform: rotateY(180deg);
}

.service-card h3 {
    font-size: 22px;
    font-weight: 600;
    margin-bottom: 15px;
    color: var(--dark-color);
}

.service-card p {
    color: var(--gray-color);
    margin-bottom: 20px;
    line-height: 1.7;
}

.service-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--primary-color);
    font-weight: 600;
}

.service-link:hover {
    color: var(--secondary-color);
    gap: 12px;
}

/* ===== About Section ===== */
.about-section {
    padding: 100px 0;
}

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

.about-images {
    position: relative;
}

.about-img-main {
    width: 80%;
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

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

.about-img-secondary {
    position: absolute;
    bottom: -30px;
    right: 0;
    width: 60%;
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    border: 5px solid var(--white);
}

.about-img-secondary img {
    width: 100%;
    height: 250px;
    object-fit: cover;
}

.experience-badge {
    position: absolute;
    top: 30px;
    right: 30px;
    width: 120px;
    height: 120px;
    background: var(--gradient-secondary);
    border-radius: 50%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: var(--white);
    box-shadow: var(--shadow-md);
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.05); }
}

.experience-badge .number {
    font-size: 36px;
    font-weight: 700;
    line-height: 1;
}

.experience-badge .text {
    font-size: 12px;
    text-align: center;
    padding: 0 10px;
}

.about-content .subtitle {
    display: inline-block;
    font-size: 14px;
    font-weight: 600;
    color: var(--secondary-color);
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: 10px;
}

.about-content h2 {
    font-size: 38px;
    font-weight: 700;
    margin-bottom: 20px;
    color: var(--dark-color);
    line-height: 1.3;
}

.about-content > p {
    color: var(--gray-color);
    margin-bottom: 25px;
    line-height: 1.8;
}

.about-features {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 15px;
    margin-bottom: 30px;
}

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

.about-feature i {
    color: var(--accent-color);
    font-size: 20px;
}

.about-feature span {
    font-weight: 500;
    color: var(--dark-color);
}

.about-stats {
    display: flex;
    gap: 40px;
    margin-bottom: 30px;
    padding: 25px 0;
    border-top: 1px solid var(--gray-light);
    border-bottom: 1px solid var(--gray-light);
}

.stat {
    text-align: center;
}

.stat-number {
    font-size: 42px;
    font-weight: 700;
    color: var(--primary-color);
    line-height: 1;
}

.stat-label {
    display: block;
    font-size: 14px;
    color: var(--gray-color);
    margin-top: 5px;
}

/* ===== Why Choose Section ===== */
.why-choose-section {
    padding: 100px 0;
    background: var(--gradient-primary);
}

.why-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}

.why-card {
    background: rgba(255, 255, 255, 0.1);
    padding: 40px 25px;
    border-radius: var(--border-radius);
    text-align: center;
    color: var(--white);
    backdrop-filter: blur(10px);
    transition: var(--transition);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.why-card:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: translateY(-10px);
}

.why-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 20px;
    background: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.why-icon i {
    font-size: 35px;
    color: var(--primary-color);
}

.why-card h3 {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 15px;
}

.why-card p {
    font-size: 15px;
    opacity: 0.9;
    line-height: 1.7;
}

/* ===== Projects Section ===== */
.projects-section {
    padding: 100px 0;
    background: var(--light-color);
}

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

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

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

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

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

.project-card:hover .project-img img {
    transform: scale(1.1);
}

.project-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 102, 204, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: var(--transition);
}

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

.project-link {
    width: 50px;
    height: 50px;
    background: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-color);
    font-size: 20px;
    transform: scale(0);
    transition: var(--transition);
}

.project-card:hover .project-link {
    transform: scale(1);
}

.project-link:hover {
    background: var(--secondary-color);
    color: var(--white);
}

.project-info {
    padding: 20px;
}

.project-category {
    font-size: 13px;
    color: var(--secondary-color);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.project-info h3 {
    font-size: 18px;
    font-weight: 600;
    color: var(--dark-color);
    margin-top: 8px;
}

/* ===== Testimonials Section ===== */
.testimonials-section {
    padding: 100px 0;
}

.testimonials-slider {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
}

.testimonial-card {
    background: var(--white);
    padding: 40px;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-md);
    display: none;
}

.testimonial-card.active {
    display: block;
    animation: fadeIn 0.5s ease;
}

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

.testimonial-content {
    position: relative;
    margin-bottom: 30px;
}

.quote-icon {
    position: absolute;
    top: -10px;
    left: -10px;
    font-size: 50px;
    color: var(--primary-color);
    opacity: 0.2;
}

.testimonial-content p {
    font-size: 18px;
    color: var(--dark-color);
    line-height: 1.8;
    font-style: italic;
    padding-left: 30px;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 20px;
}

.author-img {
    width: 70px;
    height: 70px;
    border-radius: 50%;
    overflow: hidden;
    border: 3px solid var(--primary-color);
}

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

.author-info h4 {
    font-size: 18px;
    font-weight: 600;
    color: var(--dark-color);
}

.author-info span {
    font-size: 14px;
    color: var(--gray-color);
}

.rating {
    margin-left: auto;
}

.rating i {
    color: #ffc107;
    font-size: 16px;
}

.testimonial-dots {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin-top: 30px;
}

.testimonial-dots .dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--gray-light);
    cursor: pointer;
    transition: var(--transition);
}

.testimonial-dots .dot.active {
    background: var(--primary-color);
}

/* ===== CTA Section ===== */
.cta-section {
    padding: 80px 0;
    background: var(--gradient-secondary);
}

.cta-content {
    text-align: center;
    color: var(--white);
}

.cta-content h2 {
    font-size: 42px;
    font-weight: 700;
    margin-bottom: 15px;
}

.cta-content p {
    font-size: 18px;
    margin-bottom: 30px;
    opacity: 0.9;
}

.cta-btns {
    display: flex;
    gap: 15px;
    justify-content: center;
    flex-wrap: wrap;
}

/* ===== Contact Section ===== */
.contact-section {
    padding: 100px 0;
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 50px;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 25px;
}

.info-card {
    display: flex;
    gap: 20px;
    padding: 25px;
    background: var(--light-color);
    border-radius: var(--border-radius);
    transition: var(--transition);
}

.info-card:hover {
    background: var(--primary-color);
    color: var(--white);
    transform: translateX(10px);
}

.info-icon {
    width: 60px;
    height: 60px;
    background: var(--primary-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.info-card:hover .info-icon {
    background: var(--white);
}

.info-icon i {
    font-size: 24px;
    color: var(--white);
}

.info-card:hover .info-icon i {
    color: var(--primary-color);
}

.info-content h4 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 8px;
}

.info-content p {
    font-size: 14px;
    line-height: 1.6;
}

.social-links {
    display: flex;
    gap: 15px;
    margin-top: 10px;
}

.social-links a {
    width: 45px;
    height: 45px;
    background: var(--primary-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 18px;
    transition: var(--transition);
}

.social-links a:hover {
    background: var(--secondary-color);
    transform: translateY(-5px);
}

.contact-form-wrapper {
    background: var(--white);
    padding: 40px;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-md);
}

.contact-form .form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin-bottom: 20px;
}

.form-group {
    position: relative;
}

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

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 15px 20px;
    padding-left: 50px;
    background: var(--light-color);
    border-radius: var(--border-radius);
    border: 2px solid transparent;
    transition: var(--transition);
}

.form-group textarea {
    resize: none;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    border-color: var(--primary-color);
    background: var(--white);
}

.form-group i {
    position: absolute;
    left: 18px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--gray-color);
    font-size: 16px;
}

.form-group textarea + i {
    top: 20px;
    transform: none;
}

.contact-form button {
    margin-top: 10px;
}

/* ===== Map Section ===== */
.map-section {
    line-height: 0;
}

.map-section iframe {
    filter: grayscale(20%);
}

/* ===== Footer ===== */
.footer {
    background: var(--dark-color);
    color: var(--white);
}

.footer-top {
    padding: 80px 0 50px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
    gap: 40px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 22px;
    margin-bottom: 20px;
}

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

.footer-col > p {
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 25px;
    line-height: 1.8;
}

.footer-social {
    display: flex;
    gap: 12px;
}

.footer-social a {
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    transition: var(--transition);
}

.footer-social a:hover {
    background: var(--secondary-color);
    transform: translateY(-3px);
}

.footer-col h4 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 25px;
    position: relative;
    padding-bottom: 15px;
}

.footer-col h4::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 40px;
    height: 3px;
    background: var(--secondary-color);
}

.footer-col ul li {
    margin-bottom: 12px;
}

.footer-col ul a {
    color: rgba(255, 255, 255, 0.7);
    transition: var(--transition);
}

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

.contact-list li {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    color: rgba(255, 255, 255, 0.7);
}

.contact-list i {
    color: var(--secondary-color);
    margin-top: 5px;
}

.footer-bottom {
    padding: 20px 0;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

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

.footer-bottom p {
    color: rgba(255, 255, 255, 0.6);
    font-size: 14px;
}

.footer-bottom i {
    color: #e74c3c;
}

/* ===== Back to Top ===== */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: var(--primary-color);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    box-shadow: var(--shadow-md);
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    z-index: 999;
}

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

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

/* ===== WhatsApp Float ===== */
.whatsapp-float {
    position: fixed;
    bottom: 100px;
    right: 30px;
    width: 60px;
    height: 60px;
    background: #25d366;
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 30px;
    box-shadow: var(--shadow-lg);
    z-index: 999;
    animation: bounce 2s infinite;
}

@keyframes bounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

.whatsapp-float:hover {
    background: #128c7e;
}

/* ===== Responsive Design ===== */
@media (max-width: 1200px) {
    .container {
        max-width: 960px;
    }
    
    .slide-content h1 {
        font-size: 48px;
    }
}

@media (max-width: 992px) {
    .container {
        max-width: 720px;
    }
    
    .nav {
        display: none;
    }
    
    .mobile-menu-btn {
        display: flex;
    }
    
    .phone-btn span {
        display: none;
    }
    
    .phone-btn {
        width: 45px;
        height: 45px;
        padding: 0;
        justify-content: center;
    }
    
    .slide-content h1 {
        font-size: 40px;
    }
    
    .slide-content p {
        font-size: 18px;
    }
    
    .features-strip .container {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .services-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .about-grid {
        grid-template-columns: 1fr;
        gap: 50px;
    }
    
    .about-images {
        max-width: 500px;
        margin: 0 auto;
    }
    
    .why-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .projects-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .container {
        max-width: 540px;
    }
    
    .section-header h2 {
        font-size: 32px;
    }
    
    .slide-content h1 {
        font-size: 32px;
    }
    
    .slide-content p {
        font-size: 16px;
    }
    
    .btn {
        padding: 12px 25px;
        font-size: 14px;
    }
    
    .features-strip .container {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .feature-item {
        justify-content: center;
    }
    
    .services-grid {
        grid-template-columns: 1fr;
    }
    
    .about-features {
        grid-template-columns: 1fr;
    }
    
    .about-stats {
        flex-wrap: wrap;
        justify-content: center;
    }
    
    .why-grid {
        grid-template-columns: 1fr;
    }
    
    .projects-grid {
        grid-template-columns: 1fr;
    }
    
    .testimonial-card {
        padding: 30px 20px;
    }
    
    .testimonial-author {
        flex-wrap: wrap;
    }
    
    .rating {
        margin-left: 0;
        margin-top: 15px;
        width: 100%;
    }
    
    .cta-content h2 {
        font-size: 32px;
    }
    
    .contact-form .form-row {
        grid-template-columns: 1fr;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .footer-col h4::after {
        left: 50%;
        transform: translateX(-50%);
    }
    
    .footer-social {
        justify-content: center;
    }
    
    .contact-list {
        display: inline-block;
        text-align: left;
    }
    
    .footer-bottom .container {
        flex-direction: column;
        gap: 10px;
        text-align: center;
    }
}

@media (max-width: 576px) {
    .logo span {
        font-size: 18px;
    }
    
    .logo i {
        font-size: 24px;
    }
    
    .hero-slider {
        min-height: 500px;
    }
    
    .slide-content h1 {
        font-size: 26px;
    }
    
    .slide-btns {
        flex-direction: column;
        align-items: center;
    }
    
    .slider-nav {
        padding: 0 15px;
    }
    
    .slider-nav button {
        width: 40px;
        height: 40px;
        font-size: 16px;
    }
    
    .section-header h2 {
        font-size: 26px;
    }
    
    .about-content h2 {
        font-size: 28px;
    }
    
    .stat-number {
        font-size: 32px;
    }
    
    .contact-form-wrapper {
        padding: 25px 20px;
    }
    
    .back-to-top,
    .whatsapp-float {
        right: 15px;
    }
    
    .back-to-top {
        bottom: 15px;
        width: 45px;
        height: 45px;
    }
    
    .whatsapp-float {
        bottom: 75px;
        width: 50px;
        height: 50px;
        font-size: 25px;
    }
}

/* ===== Real Images Styles ===== */
.about-img-main img,
.about-img-secondary img,
.project-img img,
.author-img img {
    opacity: 1;
}