:root {
    --primary-color: #5D33FB;
    --primary-dark: #4A28D1;
    --secondary-color: #777386;
    --white: #FFFFFF;
    --black: #000000;
    --gray-light: #F8F9FA;
    --gray-medium: #6C757D;
    --gradient-primary: linear-gradient(135deg, #5D33FB 0%, #8B5CF6 50%, #A855F7 100%);
    --gradient-dark: linear-gradient(135deg, #1E1B4B 0%, #312E81 50%, #3730A3 100%);
    --shadow-sm: 0 2px 4px rgba(93, 51, 251, 0.1);
    --shadow-md: 0 4px 6px rgba(93, 51, 251, 0.15);
    --shadow-lg: 0 10px 25px rgba(93, 51, 251, 0.2);
}

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

body {
    font-family: 'Inter', sans-serif;
    line-height: 1.6;
    color: var(--secondary-color);
    overflow-x: hidden;
}

.navbar {
    background: rgba(0, 0, 0, 0.1);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    padding: 1rem 0;
    transition: all 0.3s ease;
}

.navbar-scrolled {
    background: rgba(93, 51, 251, 0.95);
    backdrop-filter: blur(20px);
}

.navbar-brand {
    font-weight: 600;
    font-size: 1.5rem;
    color: var(--white) !important;
    text-decoration: none;
}

.logo-container {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.logo-icon {
    width: 32px;
    height: 32px;
    background: var(--gradient-primary);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    color: var(--white);
}

.nav-link {
    color: rgba(255, 255, 255, 0.8) !important;
    font-weight: 500;
    font-size: 0.9rem;
    letter-spacing: 0.5px;
    transition: all 0.3s ease;
    padding: 0.5rem 1rem !important;
}

.nav-link:hover,
.nav-link.active {
    color: var(--white) !important;
    transform: translateY(-1px);
}

.dropdown-menu {
    background: rgba(93, 51, 251, 0.95);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    padding: 0.5rem;
}

.dropdown-item {
    color: rgba(255, 255, 255, 0.8);
    border-radius: 8px;
    transition: all 0.3s ease;
}

.dropdown-item:hover {
    background: rgba(255, 255, 255, 0.1);
    color: var(--white);
}

.hero-section {
    background: var(--gradient-primary);
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
}

.hero-section::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 0 100 100"><defs><pattern id="grid" width="10" height="10" patternUnits="userSpaceOnUse"><path d="M 10 0 L 0 0 0 10" fill="none" stroke="rgba(255,255,255,0.05)" stroke-width="1"/></pattern></defs><rect width="100" height="100" fill="url(%23grid)"/></svg>');
    opacity: 0.3;
}

.hero-content {
    position: relative;
    z-index: 2;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 400;
    line-height: 1.2;
    color: var(--white);
    margin-bottom: 1.5rem;
}

.hero-title .highlight {
    background: linear-gradient(45deg, #FFD700, #FFA500);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: 600;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 2rem;
    line-height: 1.6;
}

.hero-image {
    position: relative;
    z-index: 2;
}

.hero-image img {
    border-radius: 16px;
    box-shadow: var(--shadow-lg);
    transform: perspective(1000px) rotateY(-5deg) rotateX(5deg);
    transition: transform 0.3s ease;
}

.hero-image img:hover {
    transform: perspective(1000px) rotateY(0deg) rotateX(0deg);
}

.btn-primary {
    background: var(--white);
    color: var(--primary-color);
    border: none;
    padding: 1rem 2rem;
    font-weight: 600;
    border-radius: 12px;
    transition: all 0.3s ease;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    box-shadow: var(--shadow-md);
}

.btn-primary:hover {
    background: var(--gray-light);
    color: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-outline-light {
    border: 2px solid rgba(255, 255, 255, 0.3);
    color: var(--white);
    padding: 0.5rem 1.5rem;
    border-radius: 8px;
    transition: all 0.3s ease;
}

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

.introduction-section {
    background: var(--white);
    padding: 5rem 0;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 600;
    color: var(--black);
    margin-bottom: 1.5rem;
    text-align: center;
}

.section-subtitle {
    font-size: 1.1rem;
    color: var(--secondary-color);
    text-align: center;
    margin-bottom: 3rem;
}

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

.feature-card {
    background: var(--white);
    padding: 2.5rem 2rem;
    border-radius: 16px;
    text-align: center;
    transition: all 0.3s ease;
    border: 1px solid rgba(93, 51, 251, 0.1);
    height: 100%;
}

.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-color);
}

.feature-icon {
    width: 64px;
    height: 64px;
    background: var(--gradient-primary);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    color: var(--white);
    font-size: 1.5rem;
}

.feature-card h4 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--black);
    margin-bottom: 1rem;
}

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

.integration-section {
    background: var(--white);
    padding: 5rem 0;
}

.integration-list {
    list-style: none;
    padding: 0;
    margin: 2rem 0;
}

.integration-list li {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 0.75rem 0;
    font-size: 1.1rem;
    color: var(--secondary-color);
}

.integration-list i {
    color: var(--primary-color);
    width: 20px;
    height: 20px;
}

.analytics-section {
    background: var(--gradient-dark);
    color: var(--white);
}

.analytics-section .section-title,
.analytics-section .section-subtitle {
    color: var(--white);
}

.stat-card {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    padding: 2rem;
    border-radius: 16px;
    text-align: center;
    border: 1px solid rgba(255, 255, 255, 0.2);
    transition: all 0.3s ease;
}

.stat-card:hover {
    transform: translateY(-4px);
    background: rgba(255, 255, 255, 0.15);
}

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

.stat-label {
    font-size: 1rem;
    color: rgba(255, 255, 255, 0.8);
    font-weight: 500;
}

.cta-section {
    background: var(--gradient-primary);
    padding: 5rem 0;
}

.footer {
    background: var(--black);
    color: var(--white);
}

.footer-brand .logo-container {
    margin-bottom: 1rem;
}

.footer h5 {
    color: var(--white);
    font-weight: 600;
    margin-bottom: 1rem;
}

.footer-links {
    list-style: none;
    padding: 0;
}

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

.footer-links a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    transition: color 0.3s ease;
}

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

.contact-info p {
    margin-bottom: 0.5rem;
    color: rgba(255, 255, 255, 0.7);
}

.contact-info a {
    color: var(--primary-color);
    text-decoration: none;
}

.contact-info a:hover {
    color: var(--white);
}

@media (max-width: 768px) {
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-subtitle {
        font-size: 1.1rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .feature-card {
        margin-bottom: 2rem;
    }
    
    .stat-number {
        font-size: 2.5rem;
    }
}

@media (max-width: 576px) {
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-section {
        padding: 2rem 0;
    }
    
    .feature-card {
        padding: 2rem 1.5rem;
    }
}

.page-header {
    background: var(--gradient-primary);
    padding: 8rem 0 4rem;
    text-align: center;
    color: var(--white);
}

.page-header h1 {
    font-size: 3rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.page-header p {
    font-size: 1.2rem;
    opacity: 0.9;
}

.content-section {
    padding: 4rem 0;
    background: var(--white);
}

.pricing-card {
    background: var(--white);
    border-radius: 16px;
    padding: 2.5rem 2rem;
    text-align: center;
    border: 2px solid rgba(93, 51, 251, 0.1);
    transition: all 0.3s ease;
    height: 100%;
    position: relative;
    overflow: hidden;
}

.pricing-card.featured {
    border-color: var(--primary-color);
    transform: scale(1.05);
    box-shadow: var(--shadow-lg);
}

.pricing-card.featured::before {
    content: 'POPULAR';
    position: absolute;
    top: 1rem;
    right: -2rem;
    background: var(--primary-color);
    color: var(--white);
    padding: 0.5rem 3rem;
    font-size: 0.8rem;
    font-weight: 600;
    transform: rotate(45deg);
    letter-spacing: 1px;
}

.pricing-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-color);
}

.pricing-card.featured:hover {
    transform: scale(1.05) translateY(-8px);
}

.pricing-header h3 {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--black);
    margin-bottom: 1rem;
}

.pricing-price {
    font-size: 3rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.pricing-period {
    color: var(--secondary-color);
    margin-bottom: 2rem;
}

.pricing-features {
    list-style: none;
    padding: 0;
    margin: 2rem 0;
}

.pricing-features li {
    padding: 0.75rem 0;
    color: var(--secondary-color);
    border-bottom: 1px solid rgba(93, 51, 251, 0.1);
}

.pricing-features li:last-child {
    border-bottom: none;
}

.form-section {
    background: var(--gray-light);
    padding: 4rem 0;
}

.form-container {
    background: var(--white);
    padding: 3rem;
    border-radius: 16px;
    box-shadow: var(--shadow-md);
    max-width: 600px;
    margin: 0 auto;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-label {
    font-weight: 600;
    color: var(--black);
    margin-bottom: 0.5rem;
    display: block;
}

.form-control {
    border: 2px solid rgba(93, 51, 251, 0.1);
    border-radius: 8px;
    padding: 0.75rem 1rem;
    font-size: 1rem;
    transition: all 0.3s ease;
    width: 100%;
}

.form-control:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(93, 51, 251, 0.1);
    outline: none;
}

.form-control.is-invalid {
    border-color: #dc3545;
}

.invalid-feedback {
    color: #dc3545;
    font-size: 0.875rem;
    margin-top: 0.25rem;
}

.btn-submit {
    background: var(--primary-color);
    color: var(--white);
    border: none;
    padding: 1rem 2rem;
    font-weight: 600;
    border-radius: 8px;
    transition: all 0.3s ease;
    width: 100%;
    font-size: 1.1rem;
}

.btn-submit:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.alert {
    border-radius: 8px;
    padding: 1rem 1.5rem;
    margin-bottom: 1.5rem;
    border: none;
}

.alert-success {
    background: rgba(40, 167, 69, 0.1);
    color: #155724;
    border-left: 4px solid #28a745;
}

.alert-danger {
    background: rgba(220, 53, 69, 0.1);
    color: #721c24;
    border-left: 4px solid #dc3545;
}

.contact-card {
    padding: 2rem;
    text-align: center;
}

.contact-icon {
    width: 64px;
    height: 64px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
    color: var(--white);
    font-size: 1.5rem;
}

.contact-card h4 {
    color: var(--black);
    margin-bottom: 1rem;
}

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

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

.trend-card {
    background: var(--white);
    padding: 2rem;
    border-radius: 12px;
    border: 1px solid rgba(93, 51, 251, 0.1);
    height: 100%;
    transition: all 0.3s ease;
}

.trend-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
    border-color: var(--primary-color);
}

.trend-card h4 {
    color: var(--black);
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.trend-card i {
    color: var(--primary-color);
}

.feature-list {
    list-style: none;
    padding: 0;
}

.feature-list li {
    padding: 0.75rem 0;
    border-bottom: 1px solid rgba(93, 51, 251, 0.1);
}

.feature-list li:last-child {
    border-bottom: none;
}

.tech-stack {
    margin: 2rem 0;
}

.tech-item {
    background: var(--gray-light);
    padding: 1.5rem;
    border-radius: 8px;
    margin-bottom: 1rem;
    border-left: 4px solid var(--primary-color);
}

.tech-item h5 {
    color: var(--black);
    margin-bottom: 0.5rem;
    font-weight: 600;
}

.future-trends {
    list-style: none;
    padding: 0;
}

.future-trends li {
    padding: 1rem 0;
    border-bottom: 1px solid rgba(93, 51, 251, 0.1);
}

.future-trends li:last-child {
    border-bottom: none;
}

.cta-box {
    background: var(--gradient-primary);
    border-radius: 16px;
    color: var(--white);
}

.cta-box h4 {
    color: var(--white);
    margin-bottom: 1rem;
}

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

.cta-box .btn-primary:hover {
    background: var(--gray-light);
    color: var(--primary-dark);
}

.accordion-item {
    border: 1px solid rgba(93, 51, 251, 0.1);
    border-radius: 8px;
    margin-bottom: 1rem;
}

.accordion-button {
    background: var(--white);
    color: var(--black);
    font-weight: 600;
    border: none;
    padding: 1.5rem;
}

.accordion-button:not(.collapsed) {
    background: var(--primary-color);
    color: var(--white);
    box-shadow: none;
}

.accordion-button:focus {
    box-shadow: 0 0 0 3px rgba(93, 51, 251, 0.1);
    border-color: var(--primary-color);
}

.accordion-body {
    padding: 1.5rem;
    background: var(--white);
    color: var(--secondary-color);
    line-height: 1.6;
}