:root {
    --primary-color: #2563eb;
    --secondary-color: #3b82f6;
    --accent-color: #f59e0b;
    --text-color: #1f2937;
    --light-bg: #f3f4f6;
    --dark-bg: #111827;
    --white: #ffffff;
    --card-bg: #ffffff;
    --shadow-color: rgba(0, 0, 0, 0.1);
}

[data-theme="dark"] {
    --primary-color: #60a5fa;
    --secondary-color: #3b82f6;
    --accent-color: #fbbf24;
    --text-color: #f3f4f6;
    --light-bg: #1f2937;
    --dark-bg: #030712;
    --card-bg: #1f2937;
    --shadow-color: rgba(0, 0, 0, 0.3);
}

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

body {
    font-family: 'Poppins', sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    overflow-x: hidden;
    background: var(--light-bg);
    transition: background-color 0.3s ease, color 0.3s ease;
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: var(--white);
    padding: 1rem 5%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    z-index: 1000;
    transition: all 0.3s ease;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
}

.dk {
    color: var(--secondary-color);
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-links a {
    text-decoration: none;
    color: var(--text-color);
    font-weight: 500;
    transition: color 0.3s ease;
}

.nav-links a:hover {
    color: var(--secondary-color);
}

.burger {
    display: none;
    cursor: pointer;
}

/* Hero Section with Particles */
.hero {
    position: relative;
    height: 80vh;
    background: linear-gradient(rgba(37, 99, 235, 0.9), rgba(37, 99, 235, 0.9));
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
}

.particles {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 800px;
    padding: 0 20px;
    margin: 0 auto;
}

.hero h1 {
    font-size: 4rem;
    margin-bottom: 1rem;
    color: var(--white);
}

.subtitle {
    font-size: 1.5rem;
    margin-bottom: 2rem;
    color: var(--white);
}

.cta-button {
    display: inline-block;
    padding: 1rem 2rem;
    background: var(--accent-color);
    color: var(--white);
    text-decoration: none;
    border-radius: 5px;
    transition: transform 0.3s ease, background-color 0.3s ease;
    font-weight: 500;
    border: none;
    cursor: pointer;
}

.cta-button:hover {
    transform: translateY(-3px);
    background: var(--secondary-color);
}

/* Sections */
.section {
    padding: 3rem 10%;
    min-height: auto;
    display: flex;
    flex-direction: column;
    justify-content: center;
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.section.visible {
    opacity: 1;
    transform: translateY(0);
}

.section h2 {
    text-align: center;
    margin-bottom: 2rem;
    font-size: 2.5rem;
    color: var(--primary-color);
}

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

.service-card {
    background: var(--card-bg);
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 4px 6px var(--shadow-color);
    transition: all 0.3s ease;
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.service-card.visible {
    opacity: 1;
    transform: translateY(0);
}

.service-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 12px var(--shadow-color);
}

.service-card i {
    font-size: 2.5rem;
    color: var(--secondary-color);
    margin-bottom: 1rem;
}

/* Approach Steps */
.approach-steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
}

.step {
    text-align: center;
    padding: 2rem;
    background: var(--card-bg);
    border-radius: 10px;
    box-shadow: 0 4px 6px var(--shadow-color);
    opacity: 0;
    transform: translateX(-30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.step.visible {
    opacity: 1;
    transform: translateX(0);
}

.step-number {
    width: 50px;
    height: 50px;
    background: var(--secondary-color);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
    font-size: 1.5rem;
    font-weight: bold;
}

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

.tech-category {
    text-align: center;
    padding: 2rem;
    background: var(--card-bg);
    border-radius: 10px;
    box-shadow: 0 4px 6px var(--shadow-color);
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.tech-category.visible {
    opacity: 1;
    transform: translateY(0);
}

.tech-icons {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin-top: 1rem;
}

.tech-icons i {
    font-size: 3rem;
    color: var(--secondary-color);
    transition: all 0.3s ease;
    transform-style: preserve-3d;
    transform: perspective(1000px) rotateX(0deg) rotateY(0deg);
}

.tech-icons i:hover {
    transform: perspective(1000px) rotateX(10deg) rotateY(10deg) scale(1.2);
    color: var(--accent-color);
}

/* Success Stories */
.success-stories {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.story-card {
    background: var(--card-bg);
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 4px 6px var(--shadow-color);
    transition: all 0.3s ease;
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.story-card.visible {
    opacity: 1;
    transform: translateY(0);
}

.story-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 12px var(--shadow-color);
}

/* Contact Section */
.contact-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 2rem;
    align-items: stretch;
}

.contact-card {
    background: var(--card-bg);
    border-radius: 10px;
    padding: 2rem;
    box-shadow: 0 4px 6px var(--shadow-color);
    height: 100%;
    max-width: 400px;
    margin-right: auto;
}

.contact-card h3 {
    color: var(--primary-color);
    margin-bottom: 2rem;
    text-align: center;
    font-size: 1.8rem;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
}

.contact-item i {
    font-size: 1.5rem;
    color: var(--primary-color);
    margin-top: 0.5rem;
}

.contact-item h4 {
    color: var(--text-color);
    margin-bottom: 0.5rem;
    font-size: 1.1rem;
}

.contact-item p {
    color: var(--text-color);
    margin: 0;
}

.contact-item a {
    color: var(--text-color);
    text-decoration: none;
    transition: color 0.3s ease;
}

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

.map-container {
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 4px 6px var(--shadow-color);
    height: 100%;
}

/* Footer */
footer {
    background: var(--dark-bg);
    color: var(--white);
    padding: 3rem 10%;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
}

.footer-links {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.footer-links a {
    color: var(--white);
    text-decoration: none;
    transition: color 0.3s ease;
}

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

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-links {
        display: none;
    }

    .burger {
        display: block;
    }

    .burger div {
        width: 25px;
        height: 3px;
        background: var(--primary-color);
        margin: 5px;
        transition: all 0.3s ease;
    }

    .hero h1 {
        font-size: 2.5rem;
    }

    .subtitle {
        font-size: 1.2rem;
    }

    .section {
        padding: 3rem 5%;
    }

    .contact-container {
        grid-template-columns: 1fr;
    }
    
    .contact-card {
        padding: 1.5rem;
    }
    
    .map-container {
        height: 300px;
    }
}

/* Scroll Animations */
.fade-in {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

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

/* Theme Toggle Button */
.theme-toggle {
    position: fixed;
    top: 20px;
    right: 20px;
    background: var(--card-bg);
    border: none;
    border-radius: 50%;
    width: 40px;
    height: 40px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 2px 10px var(--shadow-color);
    z-index: 1000;
    transition: all 0.3s ease;
}

.theme-toggle:hover {
    transform: scale(1.1);
}

.theme-toggle i {
    color: var(--text-color);
    font-size: 1.2rem;
}

/* Progress Bar */
.progress-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: var(--light-bg);
    z-index: 1001;
}

.progress-bar {
    height: 100%;
    background: var(--primary-color);
    width: 0%;
    transition: width 0.1s ease;
}

/* Updated Text Colors */
h1, h2, h3, h4, h5, h6 {
    color: var(--text-color);
}

/* Smooth Theme Transition */
body {
    transition: background-color 0.3s ease, color 0.3s ease;
}

/* Mobile Navigation */
@media screen and (max-width: 768px) {
    .nav-links {
        position: fixed;
        right: 0;
        height: 92vh;
        top: 8vh;
        background-color: var(--bg-color);
        display: flex;
        flex-direction: column;
        align-items: center;
        width: 50%;
        transform: translateX(100%);
        transition: transform 0.5s ease-in;
        z-index: 1;
        box-shadow: -5px 0 15px rgba(0, 0, 0, 0.2);
        backdrop-filter: blur(10px);
        background-color: rgba(var(--bg-color-rgb), 0.95);
    }

    .nav-links li {
        opacity: 0;
        margin: 1.5rem 0;
    }

    .nav-links a {
        color: var(--text-color);
        font-size: 1.2rem;
        padding: 0.5rem 1rem;
        border-radius: 5px;
        transition: background-color 0.3s ease;
    }

    .nav-links a:hover {
        background-color: rgba(var(--accent-color-rgb), 0.1);
    }

    .nav-active {
        transform: translateX(0%);
    }

    .nav-active li {
        opacity: 1;
        animation: navLinkFade 0.5s ease forwards;
    }

    .burger {
        display: block;
    }

    .burger div {
        width: 25px;
        height: 3px;
        background-color: var(--text-color);
        margin: 5px;
        transition: all 0.3s ease;
    }

    .toggle .line1 {
        transform: rotate(-45deg) translate(-5px, 6px);
    }

    .toggle .line2 {
        opacity: 0;
    }

    .toggle .line3 {
        transform: rotate(45deg) translate(-5px, -6px);
    }

    @keyframes navLinkFade {
        from {
            opacity: 0;
            transform: translateX(50px);
        }
        to {
            opacity: 1;
            transform: translateX(0px);
        }
    }
}