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

:root {
    /* Color Scheme - Matching Logo (Blue & White on Dark) */
    --primary-blue: #2E86DE;
    --secondary-blue: #54A0FF;
    --dark-bg: #0A0E27;
    --darker-bg: #050812;
    --light-bg: #1A1F3A;
    --white: #FFFFFF;
    --light-gray: #E8EAED;
    --text-gray: #B8BCC8;
    --accent-blue: #00D2FF;
    --success-green: #26DE81;
    
    /* Typography */
    --font-primary: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    --font-heading: 'Arial', sans-serif;
    
    /* Spacing */
    --section-padding: 80px 0;
    --container-max-width: 1200px;
}

body {
    font-family: var(--font-primary);
    background-color: var(--dark-bg);
    color: var(--light-gray);
    line-height: 1.6;
    overflow-x: hidden;
}

.container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 20px;
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: #000000;
    backdrop-filter: blur(10px);
    z-index: 1000;
    padding: 1rem 0;
    border-bottom: 1px solid rgba(46, 134, 222, 0.2);
    transition: all 0.3s ease;
}

.navbar.scrolled {
    background: #000000;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

.nav-container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo-img {
    height: 70px;
    width: auto;
    transition: transform 0.3s ease;
}

.logo-img:hover {
    transform: scale(1.05);
}

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

.nav-link {
    color: var(--light-gray);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-blue);
    transition: width 0.3s ease;
}

.nav-link:hover {
    color: var(--secondary-blue);
}

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

.hamburger {
    display: none;
    flex-direction: column;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background: var(--white);
    margin: 3px 0;
    transition: 0.3s;
    border-radius: 3px;
}

/* Hero Section */
.hero {
    position: relative;
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    background: linear-gradient(135deg, var(--darker-bg) 0%, var(--dark-bg) 50%, #0F1535 100%);
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 20% 50%, rgba(46, 134, 222, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(84, 160, 255, 0.1) 0%, transparent 50%);
    animation: pulse 8s ease-in-out infinite;
}

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

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 900px;
    padding: 0 20px;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    color: var(--white);
    margin-bottom: 1.5rem;
    font-family: var(--font-heading);
    line-height: 1.2;
    animation: fadeInUp 1s ease;
}

.hero-subtitle {
    font-size: 1.5rem;
    color: var(--text-gray);
    margin-bottom: 2.5rem;
    animation: fadeInUp 1s ease 0.2s backwards;
}

.hero-buttons {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
    animation: fadeInUp 1s ease 0.4s backwards;
}

.cta-button {
    padding: 1rem 2.5rem;
    text-decoration: none;
    font-weight: 600;
    border-radius: 50px;
    transition: all 0.3s ease;
    display: inline-block;
    font-size: 1.1rem;
}

.cta-button.primary {
    background: linear-gradient(135deg, var(--primary-blue), var(--secondary-blue));
    color: var(--white);
    box-shadow: 0 4px 15px rgba(46, 134, 222, 0.4);
}

.cta-button.primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 25px rgba(46, 134, 222, 0.6);
}

.cta-button.secondary {
    background: transparent;
    color: var(--white);
    border: 2px solid var(--primary-blue);
}

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

.scroll-indicator {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    color: var(--primary-blue);
    font-size: 2rem;
    animation: bounce 2s infinite;
}

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

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateX(-50%) translateY(0);
    }
    40% {
        transform: translateX(-50%) translateY(-10px);
    }
    60% {
        transform: translateX(-50%) translateY(-5px);
    }
}

/* Section Styles */
section {
    padding: var(--section-padding);
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-title {
    font-size: 2.5rem;
    color: var(--white);
    margin-bottom: 1rem;
    font-family: var(--font-heading);
}

.title-underline {
    width: 80px;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-blue), var(--secondary-blue));
    margin: 0 auto 1rem;
    border-radius: 2px;
}

.section-subtitle {
    font-size: 1.2rem;
    color: var(--text-gray);
}

/* About Section */
.about {
    background: var(--darker-bg);
}

.about-text {
    max-width: 900px;
    margin: 0 auto;
}

.lead-text {
    font-size: 1.3rem;
    color: var(--secondary-blue);
    margin-bottom: 1.5rem;
    font-weight: 500;
}

.about-text p {
    font-size: 1.1rem;
    margin-bottom: 1.5rem;
    color: var(--text-gray);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.stat-item {
    text-align: center;
    padding: 2rem;
    background: var(--light-bg);
    border-radius: 10px;
    border: 1px solid rgba(46, 134, 222, 0.2);
    transition: all 0.3s ease;
}

.stat-item:hover {
    transform: translateY(-5px);
    border-color: var(--primary-blue);
    box-shadow: 0 10px 30px rgba(46, 134, 222, 0.2);
}

.stat-number {
    font-size: 3rem;
    font-weight: 700;
    color: var(--secondary-blue);
    margin-bottom: 0.5rem;
}

.stat-label {
    font-size: 1rem;
    color: var(--text-gray);
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* RAGCS Section */
.ragcs {
    background: var(--dark-bg);
}

.ragcs-intro {
    max-width: 900px;
    margin: 0 auto 4rem;
    text-align: center;
}

.ragcs-intro h3 {
    font-size: 2rem;
    color: var(--white);
    margin-bottom: 1.5rem;
}

.ragcs-intro p {
    font-size: 1.1rem;
    color: var(--text-gray);
    line-height: 1.8;
}

.ragcs-architecture {
    margin-top: 4rem;
}

.ragcs-architecture h3 {
    font-size: 2rem;
    color: var(--white);
    text-align: center;
    margin-bottom: 3rem;
}

.architecture-steps {
    display: flex;
    flex-direction: column;
    gap: 2rem;
    max-width: 800px;
    margin: 0 auto;
}

.step-item {
    display: flex;
    gap: 2rem;
    align-items: flex-start;
    padding: 2rem;
    background: var(--light-bg);
    border-radius: 15px;
    border-left: 4px solid var(--primary-blue);
    transition: all 0.3s ease;
}

.step-item:hover {
    transform: translateX(10px);
    box-shadow: 0 10px 30px rgba(46, 134, 222, 0.2);
}

.step-icon {
    font-size: 2.5rem;
    color: var(--secondary-blue);
    min-width: 60px;
    text-align: center;
}

.step-content h4 {
    font-size: 1.5rem;
    color: var(--white);
    margin-bottom: 0.5rem;
}

.step-content p {
    color: var(--text-gray);
    line-height: 1.6;
}

/* Features Section */
.features {
    background: var(--darker-bg);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.feature-card {
    background: var(--light-bg);
    padding: 2.5rem;
    border-radius: 15px;
    text-align: center;
    transition: all 0.3s ease;
    border: 1px solid rgba(46, 134, 222, 0.1);
}

.feature-card:hover {
    transform: translateY(-10px);
    border-color: var(--primary-blue);
    box-shadow: 0 15px 40px rgba(46, 134, 222, 0.3);
}

.feature-icon {
    font-size: 3rem;
    color: var(--secondary-blue);
    margin-bottom: 1.5rem;
}

.feature-card h3 {
    font-size: 1.4rem;
    color: var(--white);
    margin-bottom: 1rem;
}

.feature-card p {
    color: var(--text-gray);
    line-height: 1.6;
}

/* Benefits Section */
.benefits {
    background: var(--dark-bg);
}

.benefits-content {
    display: flex;
    flex-direction: column;
    gap: 3rem;
    max-width: 900px;
    margin: 0 auto;
}

.benefit-item {
    display: flex;
    gap: 2rem;
    align-items: flex-start;
    padding: 2.5rem;
    background: var(--light-bg);
    border-radius: 15px;
    transition: all 0.3s ease;
}

.benefit-item:hover {
    transform: scale(1.02);
    box-shadow: 0 10px 30px rgba(46, 134, 222, 0.2);
}

.benefit-icon {
    font-size: 3rem;
    color: var(--secondary-blue);
    min-width: 80px;
    text-align: center;
    background: rgba(46, 134, 222, 0.1);
    padding: 1.5rem;
    border-radius: 50%;
}

.benefit-text h3 {
    font-size: 1.8rem;
    color: var(--white);
    margin-bottom: 1rem;
}

.benefit-text p {
    color: var(--text-gray);
    line-height: 1.8;
    font-size: 1.1rem;
}

/* Contact Section */
.contact {
    background: var(--darker-bg);
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 4rem;
    max-width: 1000px;
    margin: 0 auto;
}

.contact-info h3 {
    font-size: 1.8rem;
    color: var(--white);
    margin-bottom: 2rem;
}

.info-item {
    display: flex;
    gap: 1.5rem;
    align-items: flex-start;
    margin-bottom: 2rem;
}

.info-item i {
    font-size: 1.5rem;
    color: var(--secondary-blue);
    min-width: 30px;
}

.info-item strong {
    display: block;
    color: var(--white);
    margin-bottom: 0.3rem;
}

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

.social-links {
    display: flex;
    gap: 1rem;
    margin-top: 2rem;
}

.social-links a {
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--light-bg);
    color: var(--secondary-blue);
    border-radius: 50%;
    font-size: 1.5rem;
    transition: all 0.3s ease;
    border: 1px solid rgba(46, 134, 222, 0.2);
}

.social-links a:hover {
    background: var(--primary-blue);
    color: var(--white);
    transform: translateY(-3px);
}

/* Contact Form */
.contact-form {
    background: var(--light-bg);
    padding: 3rem;
    border-radius: 15px;
    border: 1px solid rgba(46, 134, 222, 0.2);
}

.contact-form input,
.contact-form select,
.contact-form textarea {
    width: 100%;
    padding: 1rem;
    margin-bottom: 1.5rem;
    background: var(--dark-bg);
    border: 1px solid rgba(46, 134, 222, 0.3);
    border-radius: 8px;
    color: var(--white);
    font-size: 1rem;
    font-family: var(--font-primary);
    transition: all 0.3s ease;
}

.contact-form input:focus,
.contact-form select:focus,
.contact-form textarea:focus {
    outline: none;
    border-color: var(--primary-blue);
    box-shadow: 0 0 0 3px rgba(46, 134, 222, 0.1);
}

.contact-form select {
    cursor: pointer;
}

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

.submit-button {
    width: 100%;
    padding: 1.2rem;
    background: linear-gradient(135deg, var(--primary-blue), var(--secondary-blue));
    color: var(--white);
    border: none;
    border-radius: 50px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.submit-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 25px rgba(46, 134, 222, 0.4);
}

#form-status {
    text-align: center;
    margin-top: 1rem;
    font-weight: 500;
}

/* Footer */
.footer {
    background: var(--darker-bg);
    padding: 3rem 0 1.5rem;
    border-top: 1px solid rgba(46, 134, 222, 0.2);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 3rem;
    margin-bottom: 2rem;
}

.footer-section h4 {
    color: var(--white);
    font-size: 1.2rem;
    margin-bottom: 1rem;
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: 0.5rem;
}

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

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

.footer-logo {
    height: 60px;
    width: auto;
    margin-bottom: 1rem;
}

.footer-section p {
    color: var(--text-gray);
    line-height: 1.6;
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(46, 134, 222, 0.1);
    color: var(--text-gray);
}

/* Responsive Design */
@media (max-width: 968px) {
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background: rgba(10, 14, 39, 0.98);
        width: 100%;
        text-align: center;
        transition: 0.3s;
        padding: 2rem 0;
        gap: 1rem;
    }

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

    .hamburger {
        display: flex;
    }

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

    .hero-subtitle {
        font-size: 1.2rem;
    }

    .hero-buttons {
        flex-direction: column;
        gap: 1rem;
    }

    .contact-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .benefit-item,
    .step-item {
        flex-direction: column;
        text-align: center;
    }

    .benefit-icon,
    .step-icon {
        margin: 0 auto;
    }

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

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

@media (max-width: 600px) {
    .hero-title {
        font-size: 2rem;
    }

    .section-title {
        font-size: 2rem;
    }

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

    .contact-form {
        padding: 2rem;
    }

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