/* ===== CSS Variables ===== */
:root {
    --primary-color: #0066cc;
    --secondary-color: #00a8ff;
    --accent-color: #ff6b6b;
    --dark-color: #1a1a2e;
    --light-color: #f5f7fa;
    --text-color: #333333;
    --text-light: #666666;
    --white: #ffffff;
    --gradient-1: linear-gradient(135deg, #0066cc 0%, #00a8ff 100%);
    --gradient-2: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --gradient-3: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.12);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.16);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --border-radius: 12px;
}

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

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

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

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

section {
    padding: 80px 0;
}

/* ===== Typography ===== */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1rem;
}

h1 { font-size: 3rem; }
h2 { font-size: 2.5rem; }
h3 { font-size: 1.75rem; }
h4 { font-size: 1.25rem; }

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

ul {
    list-style: none;
}

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

/* ===== Buttons ===== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 32px;
    border-radius: var(--border-radius);
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    border: none;
    transition: var(--transition);
    text-align: center;
    position: relative;
    overflow: hidden;
    z-index: 1;
}

.btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
    z-index: -1;
}

.btn:hover::before {
    width: 300px;
    height: 300px;
}

.btn-primary {
    background: var(--gradient-1);
    color: var(--white);
    box-shadow: var(--shadow-md);
}

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

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

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

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

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

.nav-wrapper {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 0;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
}

.logo i {
    font-size: 2rem;
    animation: rotate 10s linear infinite;
}

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

.nav-menu {
    display: flex;
    gap: 2rem;
    align-items: center;
}

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

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-1);
    transition: width 0.3s;
}

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

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

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

/* ===== Hero Section ===== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    background: linear-gradient(135deg, #0066cc 0%, #00a8ff 50%, #667eea 100%);
    overflow: hidden;
    padding-top: 80px;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1440 320"><path fill="%23ffffff" fill-opacity="0.1" d="M0,96L48,112C96,128,192,160,288,160C384,160,480,128,576,122.7C672,117,768,139,864,138.7C960,139,1056,117,1152,96C1248,75,1344,53,1392,42.7L1440,32L1440,320L1392,320C1344,320,1248,320,1152,320C1056,320,960,320,864,320C768,320,672,320,576,320C480,320,384,320,288,320C192,320,96,320,48,320L0,320Z"></path></svg>') no-repeat bottom;
    background-size: cover;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.3);
}

.hero-content {
    position: relative;
    z-index: 1;
    color: var(--white);
    text-align: center;
    max-width: 900px;
    margin: 0 auto;
}

.hero-title {
    font-size: 3.5rem;
    margin-bottom: 1.5rem;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.2);
}

.hero-title .highlight {
    display: block;
    background: linear-gradient(90deg, #fff, #00a8ff);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.25rem;
    margin-bottom: 2rem;
    opacity: 0.95;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    margin-bottom: 4rem;
}

.hero-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    margin-top: 4rem;
}

.stat-card {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    padding: 2rem;
    border-radius: var(--border-radius);
    border: 1px solid rgba(255, 255, 255, 0.2);
    transition: var(--transition);
}

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

.stat-card i {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.stat-card h3 {
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
}

.stat-card p {
    font-size: 1rem;
    opacity: 0.9;
}

/* ===== Animations ===== */
.animate-fade-in {
    animation: fadeInUp 1s ease-out;
}

.animate-fade-in-delay {
    animation: fadeInUp 1s ease-out 0.3s backwards;
}

.animate-fade-in-delay-2 {
    animation: fadeInUp 1s ease-out 0.6s backwards;
}

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

/* ===== Section Headers ===== */
.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-title {
    font-size: 2.5rem;
    color: var(--dark-color);
    margin-bottom: 1rem;
    position: relative;
    display: inline-block;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background: var(--gradient-1);
    border-radius: 2px;
}

.section-subtitle {
    color: var(--text-light);
    font-size: 1.1rem;
}

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

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
}

.service-card {
    background: var(--white);
    padding: 2.5rem;
    border-radius: var(--border-radius);
    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-1);
    transform: scaleX(0);
    transition: transform 0.3s;
}

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

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

.service-card.featured {
    background: var(--gradient-1);
    color: var(--white);
    transform: scale(1.05);
}

.service-card.featured:hover {
    transform: scale(1.08) translateY(-10px);
}

.featured-badge {
    position: absolute;
    top: 20px;
    right: -35px;
    background: var(--accent-color);
    color: var(--white);
    padding: 5px 40px;
    transform: rotate(45deg);
    font-size: 0.875rem;
    font-weight: 600;
}

.service-icon {
    width: 80px;
    height: 80px;
    background: var(--gradient-1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
    transition: var(--transition);
}

.service-card.featured .service-icon {
    background: var(--white);
}

.service-icon i {
    font-size: 2rem;
    color: var(--white);
}

.service-card.featured .service-icon i {
    color: var(--primary-color);
}

.service-card:hover .service-icon {
    transform: scale(1.1) rotate(10deg);
}

.service-card h3 {
    margin-bottom: 1rem;
    color: inherit;
}

.service-card p {
    color: inherit;
    opacity: 0.9;
    margin-bottom: 1.5rem;
}

.service-features {
    margin-bottom: 1.5rem;
}

.service-features li {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 0.75rem;
    color: inherit;
    opacity: 0.9;
}

.service-features i {
    color: #4caf50;
    font-size: 0.875rem;
}

.service-card.featured .service-features i {
    color: var(--white);
}

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

.service-card.featured .service-link {
    color: var(--white);
}

.service-link:hover {
    gap: 12px;
}

/* ===== About Section ===== */
.about-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.about-image {
    position: relative;
}

.image-card {
    width: 100%;
    aspect-ratio: 1;
    background: var(--gradient-1);
    border-radius: var(--border-radius);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-lg);
}

.image-card i {
    font-size: 8rem;
    color: var(--white);
    opacity: 0.3;
}

.floating-badge {
    position: absolute;
    bottom: 20px;
    right: -20px;
    background: var(--white);
    padding: 1.5rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-lg);
    display: flex;
    align-items: center;
    gap: 10px;
    animation: float 3s ease-in-out infinite;
}

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

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

.floating-badge span {
    font-weight: 600;
    color: var(--dark-color);
}

.about-content {
    text-align: left;
}

.about-content .section-title {
    text-align: left;
}

.about-content .section-title::after {
    left: 0;
    transform: none;
}

.about-text {
    font-size: 1.1rem;
    color: var(--text-light);
    margin-bottom: 2rem;
    line-height: 1.8;
}

.about-features {
    margin-bottom: 2rem;
}

.about-feature {
    display: flex;
    gap: 1.5rem;
    margin-bottom: 1.5rem;
}

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

.feature-icon i {
    font-size: 1.5rem;
    color: var(--primary-color);
}

.feature-content h4 {
    margin-bottom: 0.5rem;
    color: var(--dark-color);
}

.feature-content p {
    color: var(--text-light);
    font-size: 0.95rem;
}

/* ===== Features Section ===== */
.features {
    background: var(--white);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.feature-card {
    text-align: center;
    padding: 2.5rem;
    background: var(--light-color);
    border-radius: var(--border-radius);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: var(--gradient-1);
    transition: left 0.5s;
    z-index: 0;
}

.feature-card:hover::before {
    left: 0;
}

.feature-card:hover {
    transform: translateY(-10px);
    color: var(--white);
}

.feature-card > * {
    position: relative;
    z-index: 1;
}

.feature-number {
    font-size: 4rem;
    font-weight: 700;
    color: var(--primary-color);
    opacity: 0.1;
    margin-bottom: -2rem;
    transition: var(--transition);
}

.feature-card:hover .feature-number {
    color: var(--white);
    opacity: 0.2;
}

.feature-card i {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
    transition: var(--transition);
}

.feature-card:hover i {
    color: var(--white);
    transform: scale(1.1);
}

.feature-card h3 {
    margin-bottom: 1rem;
    transition: var(--transition);
}

.feature-card p {
    color: var(--text-light);
    transition: var(--transition);
}

.feature-card:hover p {
    color: var(--white);
    opacity: 0.9;
}

/* ===== Testimonials Section ===== */
.testimonials {
    background: var(--light-color);
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.testimonial-card {
    background: var(--white);
    padding: 2.5rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

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

.stars {
    margin-bottom: 1rem;
}

.stars i {
    color: #ffc107;
    font-size: 1.2rem;
}

.testimonial-text {
    font-style: italic;
    color: var(--text-light);
    line-height: 1.8;
    margin-bottom: 2rem;
    font-size: 1.05rem;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.author-avatar {
    width: 60px;
    height: 60px;
    background: var(--gradient-1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.author-avatar i {
    font-size: 1.5rem;
    color: var(--white);
}

.author-info h4 {
    margin-bottom: 0.25rem;
    color: var(--dark-color);
}

.author-info p {
    color: var(--text-light);
    font-size: 0.9rem;
}

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

.contact-wrapper {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 3rem;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.info-card {
    background: var(--light-color);
    padding: 2rem;
    border-radius: var(--border-radius);
    transition: var(--transition);
}

.info-card:hover {
    background: var(--gradient-1);
    color: var(--white);
    transform: translateX(10px);
}

.info-card i {
    font-size: 2rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
    transition: var(--transition);
}

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

.info-card h3 {
    margin-bottom: 0.5rem;
}

.info-card p {
    color: inherit;
    opacity: 0.9;
}

.contact-form-wrapper {
    background: var(--light-color);
    padding: 3rem;
    border-radius: var(--border-radius);
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.form-group {
    position: relative;
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 1rem;
    border: 2px solid transparent;
    border-radius: var(--border-radius);
    font-size: 1rem;
    font-family: inherit;
    background: var(--white);
    transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary-color);
}

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

.form-group label {
    position: absolute;
    left: 1rem;
    top: 1rem;
    color: var(--text-light);
    pointer-events: none;
    transition: var(--transition);
}

.form-group input:focus + label,
.form-group textarea:focus + label,
.form-group select:focus + label,
.form-group input:not(:placeholder-shown) + label,
.form-group textarea:not(:placeholder-shown) + label,
.form-group select:valid + label {
    top: -10px;
    left: 0.75rem;
    font-size: 0.875rem;
    background: var(--white);
    padding: 0 0.5rem;
    color: var(--primary-color);
}

/* ===== Footer ===== */
.footer {
    background: var(--dark-color);
    color: var(--white);
    padding: 4rem 0 2rem;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.footer-logo i {
    font-size: 2rem;
}

.footer-col p {
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 1.5rem;
}

.social-links {
    display: flex;
    gap: 1rem;
}

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

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

.footer-col h4 {
    margin-bottom: 1.5rem;
    font-size: 1.25rem;
}

.footer-col ul li {
    margin-bottom: 0.75rem;
}

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

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

.newsletter-form {
    display: flex;
    gap: 0.5rem;
}

.newsletter-form input {
    flex: 1;
    padding: 0.75rem 1rem;
    border: none;
    border-radius: var(--border-radius);
    font-family: inherit;
}

.newsletter-form button {
    padding: 0.75rem 1.5rem;
    background: var(--primary-color);
    color: var(--white);
    border: none;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: var(--transition);
}

.newsletter-form button:hover {
    background: var(--secondary-color);
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.7);
}

/* ===== Scroll to Top Button ===== */
.scroll-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: var(--gradient-1);
    color: var(--white);
    border: none;
    border-radius: 50%;
    font-size: 1.25rem;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    z-index: 999;
    box-shadow: var(--shadow-lg);
}

.scroll-top.active {
    opacity: 1;
    visibility: visible;
}

.scroll-top:hover {
    transform: translateY(-5px);
}

/* ===== Responsive Design ===== */
@media (max-width: 968px) {
    .hero-title {
        font-size: 2.5rem;
    }
    
    .about-wrapper {
        grid-template-columns: 1fr;
    }
    
    .contact-wrapper {
        grid-template-columns: 1fr;
    }
    
    .hamburger {
        display: flex;
    }
    
    .nav-menu {
        position: fixed;
        top: 70px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 70px);
        background: var(--white);
        flex-direction: column;
        align-items: center;
        justify-content: center;
        transition: left 0.3s;
        box-shadow: var(--shadow-lg);
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .hero-buttons .btn {
        width: 100%;
        max-width: 300px;
    }
}

@media (max-width: 768px) {
    section {
        padding: 60px 0;
    }
    
    h1 { font-size: 2rem; }
    h2 { font-size: 2rem; }
    h3 { font-size: 1.5rem; }
    
    .services-grid,
    .features-grid,
    .testimonials-grid {
        grid-template-columns: 1fr;
    }
    
    .hero-stats {
        grid-template-columns: 1fr;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .social-links {
        justify-content: center;
    }
    
    .about-content .section-title::after {
        left: 50%;
        transform: translateX(-50%);
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 1.75rem;
    }
    
    .hero-subtitle {
        font-size: 1rem;
    }
    
    .container {
        padding: 0 15px;
    }
    
    .btn {
        padding: 12px 24px;
        font-size: 0.9rem;
    }
}