:root {
    --primary: #1a56db;
    --primary-dark: #1e40af;
    --secondary: #00a3a3;
    --accent: #f59e0b;
    --dark: #0f172a;
    --light: #f8fafc;
    --white: #ffffff;
    --gray: #64748b;
    --gray-light: #e2e8f0;
    --gradient: linear-gradient(135deg, var(--primary), var(--secondary));
    --shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 20px 60px rgba(0, 0, 0, 0.15);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

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

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

#preloader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--white);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    transition: opacity 0.5s ease;
}

#preloader.fade-out {
    opacity: 0;
    pointer-events: none;
}

.loader {
    display: flex;
    gap: 8px;
}

.loader .circle {
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: var(--primary);
    animation: bounce 0.6s infinite alternate;
}

.loader .circle:nth-child(2) {
    animation-delay: 0.2s;
    background: var(--secondary);
}

.loader .circle:nth-child(3) {
    animation-delay: 0.4s;
    background: var(--accent);
}

@keyframes bounce {
    to {
        transform: translateY(-20px);
        opacity: 0.5;
    }
}

#progress-bar {
    position: fixed;
    top: 0;
    left: 0;
    height: 3px;
    background: var(--gradient);
    z-index: 1000;
    transition: width 0.1s ease;
}

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

#header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 999;
    padding: 15px 0;
    transition: var(--transition);
    background: transparent;
}

#header.scrolled {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow);
    padding: 10px 0;
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.2rem;
    color: var(--white);
    transition: var(--transition);
}

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

.logo i {
    font-size: 2rem;
    color: var(--accent);
    animation: rotate 10s linear infinite;
}

@keyframes rotate {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.logo strong {
    color: var(--accent);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 5px;
}

.nav-menu li a {
    text-decoration: none;
    color: var(--white);
    padding: 8px 18px;
    border-radius: 50px;
    font-weight: 500;
    font-size: 0.95rem;
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 6px;
}

#header.scrolled .nav-menu li a {
    color: var(--dark);
}

.nav-menu li a:hover,
.nav-menu li a.active {
    background: var(--gradient);
    color: var(--white) !important;
    box-shadow: 0 4px 15px rgba(26, 86, 219, 0.4);
}

.menu-toggle {
    display: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--white);
}

#header.scrolled .menu-toggle {
    color: var(--dark);
}

.hero {
    min-height: 100vh;
    background: linear-gradient(135deg, #0f172a 0%, #1e3a5f 50%, #1a56db 100%);
    position: relative;
    display: flex;
    align-items: center;
    overflow: hidden;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at 30% 50%, rgba(26, 86, 219, 0.2), transparent 70%);
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    align-items: center;
    position: relative;
    z-index: 2;
}

.hero-badge {
    display: inline-block;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    padding: 8px 20px;
    border-radius: 50px;
    color: var(--accent);
    font-weight: 600;
    font-size: 0.9rem;
    margin-bottom: 20px;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.hero h1 {
    font-size: 3rem;
    font-weight: 700;
    color: var(--white);
    line-height: 1.2;
    margin-bottom: 20px;
}

.gradient-text {
    background: linear-gradient(135deg, #60a5fa, #00a3a3, #f59e0b);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero p {
    font-size: 1.1rem;
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 30px;
    line-height: 1.8;
}

.hero-buttons {
    display: flex;
    gap: 15px;
    flex-wrap: wrap;
}

.btn {
    padding: 14px 28px;
    border-radius: 50px;
    font-weight: 600;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    transition: var(--transition);
    cursor: pointer;
    border: none;
    font-size: 1rem;
}

.btn-primary {
    background: var(--gradient);
    color: var(--white);
    box-shadow: 0 4px 20px rgba(26, 86, 219, 0.4);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 30px rgba(26, 86, 219, 0.6);
}

.btn-outline {
    background: transparent;
    color: var(--white);
    border: 2px solid rgba(255, 255, 255, 0.3);
}

.btn-outline:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: var(--white);
    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);
}

.hero-stats {
    display: flex;
    gap: 30px;
    margin-top: 40px;
}

.stat {
    text-align: center;
}

.stat-number {
    display: block;
    font-size: 2rem;
    font-weight: 700;
    color: var(--accent);
}

.stat-label {
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.7);
}

.hero-image {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
}

.floating-card {
    position: absolute;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    padding: 20px 25px;
    border-radius: 20px;
    box-shadow: var(--shadow-lg);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    animation: float 3s ease-in-out infinite;
}

.floating-card i {
    font-size: 2rem;
    color: var(--primary);
}

.floating-card span {
    font-weight: 600;
    font-size: 0.9rem;
    color: var(--dark);
}

.floating-card:nth-child(1) {
    top: 10%;
    right: 10%;
}

.floating-card:nth-child(2) {
    bottom: 20%;
    left: 5%;
    animation-delay: 1s;
}

.floating-card:nth-child(3) {
    top: 50%;
    right: 5%;
    animation-delay: 2s;
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-20px); }
}

.wave-divider {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    line-height: 0;
}

section {
    padding: 100px 0;
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-subtitle {
    display: inline-block;
    background: rgba(26, 86, 219, 0.1);
    color: var(--primary);
    padding: 8px 20px;
    border-radius: 50px;
    font-weight: 600;
    font-size: 0.9rem;
    margin-bottom: 15px;
}

.section-header h2 {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 15px;
}

.section-header p {
    font-size: 1.1rem;
    color: var(--gray);
    max-width: 600px;
    margin: 0 auto;
}

.about-section {
    background: var(--white);
}

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

.about-card {
    background: var(--white);
    padding: 40px 30px;
    border-radius: 20px;
    text-align: center;
    transition: var(--transition);
    border: 1px solid var(--gray-light);
    position: relative;
    overflow: hidden;
}

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

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

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

.about-card.featured {
    background: var(--gradient);
    color: var(--white);
    border: none;
}

.about-card.featured h3,
.about-card.featured p {
    color: var(--white);
}

.about-icon {
    width: 80px;
    height: 80px;
    background: rgba(26, 86, 219, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    font-size: 2rem;
    color: var(--primary);
    transition: var(--transition);
}

.about-card.featured .about-icon {
    background: rgba(255, 255, 255, 0.2);
    color: var(--white);
}

.about-card:hover .about-icon {
    transform: rotateY(360deg);
}

.about-card h3 {
    font-size: 1.3rem;
    margin-bottom: 12px;
    color: var(--dark);
}

.about-card p {
    color: var(--gray);
    font-size: 0.95rem;
    line-height: 1.7;
}

.about-cta {
    text-align: center;
    margin-top: 50px;
    padding: 20px;
    background: var(--gradient);
    border-radius: 15px;
    color: var(--white);
    font-size: 1.1rem;
}

.about-cta strong {
    color: var(--accent);
}

.pulse {
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.2); }
}

.services-section {
    background: var(--light);
}

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

.service-card {
    background: var(--white);
    border-radius: 20px;
    overflow: hidden;
    transition: var(--transition);
    box-shadow: var(--shadow);
}

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

.service-img {
    position: relative;
    height: 200px;
    overflow: hidden;
}

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

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

.service-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(15, 23, 42, 0.7);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: var(--transition);
}

.service-overlay i {
    font-size: 3rem;
    color: var(--white);
}

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

.service-content {
    padding: 25px;
}

.service-content h3 {
    font-size: 1.2rem;
    margin-bottom: 10px;
    color: var(--dark);
}

.service-content p {
    color: var(--gray);
    font-size: 0.9rem;
    margin-bottom: 15px;
    line-height: 1.6;
}

.service-link {
    color: var(--primary);
    text-decoration: none;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 5px;
    transition: var(--transition);
}

.service-link:hover {
    gap: 10px;
    color: var(--primary-dark);
}

.cta-section {
    background: linear-gradient(135deg, var(--dark), var(--primary-dark));
    text-align: center;
    color: var(--white);
}

.cta-content h2 {
    font-size: 2.5rem;
    margin-bottom: 15px;
}

.cta-content p {
    font-size: 1.1rem;
    opacity: 0.9;
    margin-bottom: 30px;
}

.cta-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
}

.contact-section {
    background: var(--white);
}

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

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

.contact-card {
    display: flex;
    align-items: center;
    gap: 20px;
    padding: 25px;
    background: var(--light);
    border-radius: 15px;
    transition: var(--transition);
}

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

.contact-card i {
    font-size: 2rem;
    color: var(--primary);
    transition: var(--transition);
}

.contact-card:hover i {
    color: var(--white);
}

.contact-card h4 {
    margin-bottom: 5px;
}

.contact-card a {
    color: var(--primary);
    text-decoration: none;
    font-weight: 600;
}

.contact-card:hover a,
.contact-card:hover p,
.contact-card:hover h4 {
    color: var(--white);
}

.contact-social h3 {
    margin-bottom: 20px;
    font-size: 1.3rem;
}

.social-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 15px;
}

.social-icon {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    padding: 20px;
    background: var(--light);
    border-radius: 15px;
    text-decoration: none;
    transition: var(--transition);
    color: var(--dark);
}

.social-icon:hover {
    transform: translateY(-5px);
    color: var(--white);
}

.social-icon i {
    font-size: 1.5rem;
}

.social-icon.twitter:hover { background: #1DA1F2; }
.social-icon.facebook:hover { background: #1877F2; }
.social-icon.instagram:hover { background: linear-gradient(45deg, #f09433, #e6683c, #dc2743, #cc2366, #bc1888); }
.social-icon.linkedin:hover { background: #0A66C2; }
.social-icon.youtube:hover { background: #FF0000; }
.social-icon.github:hover { background: #333; }

#footer {
    background: var(--dark);
    color: var(--white);
    padding: 60px 0 20px;
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 40px;
}

.footer-brand i {
    font-size: 2rem;
    color: var(--accent);
    margin-bottom: 10px;
}

.footer-brand h3 {
    margin-bottom: 10px;
}

.footer-brand p {
    opacity: 0.7;
    font-size: 0.9rem;
}

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

.footer-links ul,
.footer-services ul {
    list-style: none;
}

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

.footer-links ul li a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    transition: var(--transition);
}

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

.footer-services ul li {
    margin-bottom: 8px;
    opacity: 0.7;
    font-size: 0.9rem;
}

.footer-contact p {
    margin-bottom: 10px;
    opacity: 0.7;
}

.footer-contact i {
    margin-right: 8px;
    color: var(--accent);
}

.footer-bottom {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    font-size: 0.9rem;
    opacity: 0.7;
}

#back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: var(--gradient);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    font-size: 1.2rem;
    box-shadow: var(--shadow);
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    z-index: 998;
}

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

#back-to-top:hover {
    transform: translateY(-5px);
}

@media (max-width: 1024px) {
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero-image {
        display: none;
    }

    .hero-buttons {
        justify-content: center;
    }

    .hero-stats {
        justify-content: center;
    }

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

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

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

@media (max-width: 768px) {
    .menu-toggle {
        display: block;
    }

    .nav-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 80%;
        max-width: 400px;
        height: 100vh;
        background: var(--white);
        flex-direction: column;
        padding: 80px 30px;
        gap: 20px;
        transition: var(--transition);
        box-shadow: var(--shadow-lg);
    }

    .nav-menu.active {
        right: 0;
    }

    .nav-menu li a {
        color: var(--dark) !important;
    }

    .hero h1 {
        font-size: 2rem;
    }

    .section-header h2 {
        font-size: 2rem;
    }

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

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

    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .cta-content h2 {
        font-size: 1.8rem;
    }
}

@media (max-width: 480px) {
    .hero-stats {
        flex-direction: column;
        gap: 15px;
    }

    .cta-buttons {
        flex-direction: column;
    }

    .btn {
        width: 100%;
        justify-content: center;
    }
}