@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;700;900&display=swap');

:root {
    /* Image 1 Palette - Tech Blue */
    --color-bg-darkest: #0b132b;
    --color-bg-dark: #1c3182;
    --color-primary: #2955e6;
    --color-secondary: #809aee;
    --color-light: #d5dcf5;
    
    --color-text-main: #333333;
    --color-text-muted: #666666;
    --color-bg-body: #f8fafc;
    --color-bg-card: #ffffff;
    
    --border-radius: 12px;
    --transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
}

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

body {
    font-family: 'Inter', system-ui, sans-serif;
    background-color: var(--color-bg-body);
    color: var(--color-text-main);
    line-height: 1.6;
    overflow-x: hidden;
}

/* --- Navigation --- */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(11, 19, 43, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    padding: 15px 0;
    box-shadow: 0 4px 20px rgba(0,0,0,0.1);
}
.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 20px;
}
.logo {
    color: var(--color-light);
    font-size: 1.5rem;
    font-weight: 900;
    text-decoration: none;
    letter-spacing: 1px;
}
.logo span {
    color: var(--color-primary);
}
.nav-links {
    display: flex;
    gap: 30px;
    list-style: none;
}
.nav-links a {
    color: var(--color-light);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
}
.nav-links a:hover {
    color: var(--color-secondary);
}

/* --- Hero Section (Particles + Dynamic) --- */
.hero-section {
    position: relative;
    height: 100vh;
    min-height: 600px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--color-bg-darkest) 0%, var(--color-bg-dark) 100%);
    overflow: hidden;
    text-align: center;
}
#particles-js {
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    z-index: 1;
}
.hero-content {
    position: relative;
    z-index: 2;
    max-width: 800px;
    padding: 0 20px;
}
.hero-title {
    font-size: 3.5rem;
    color: #ffffff;
    font-weight: 900;
    margin-bottom: 20px;
    text-shadow: 0 10px 30px rgba(0,0,0,0.5);
    animation: fadeInUp 1s ease;
}
.hero-subtitle {
    font-size: 1.2rem;
    color: var(--color-light);
    margin-bottom: 40px;
    animation: fadeInUp 1.2s ease;
}

/* --- Buttons & Ripple --- */
.btn {
    display: inline-block;
    padding: 15px 40px;
    border-radius: 30px;
    font-size: 1.1rem;
    font-weight: 700;
    text-decoration: none;
    cursor: pointer;
    position: relative;
    overflow: hidden;
    transition: var(--transition);
}
.btn-primary {
    background: var(--color-primary);
    color: #ffffff;
    box-shadow: 0 10px 20px rgba(41, 85, 230, 0.3);
    border: none;
}
.btn-primary:hover {
    background: var(--color-secondary);
    transform: translateY(-3px);
    box-shadow: 0 15px 30px rgba(41, 85, 230, 0.4);
}
.ripple {
    position: absolute;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.4);
    transform: scale(0);
    animation: ripple-anim 0.6s linear;
    pointer-events: none;
}
@keyframes ripple-anim {
    to {
        transform: scale(4);
        opacity: 0;
    }
}
@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(30px); }
    to { opacity: 1; transform: translateY(0); }
}

/* --- Sections --- */
.section {
    padding: 100px 20px;
    max-width: 1200px;
    margin: 0 auto;
}
.section-title {
    text-align: center;
    font-size: 2.5rem;
    color: var(--color-bg-darkest);
    margin-bottom: 60px;
    font-weight: 900;
}

/* --- Features --- */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
}
.feature-card {
    background: var(--color-bg-card);
    padding: 40px 30px;
    border-radius: var(--border-radius);
    text-align: center;
    box-shadow: 0 10px 30px rgba(11, 19, 43, 0.05);
    transition: var(--transition);
    border-bottom: 4px solid transparent;
}
.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(11, 19, 43, 0.1);
    border-color: var(--color-primary);
}
.feature-icon {
    font-size: 3rem;
    color: var(--color-primary);
    margin-bottom: 20px;
}
.feature-card h3 {
    font-size: 1.5rem;
    margin-bottom: 15px;
    color: var(--color-bg-darkest);
}

/* --- Pricing (Image 2 Style adapted to Image 1 Colors) --- */
.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}
.pricing-card {
    background: var(--color-bg-card);
    border-radius: var(--border-radius);
    padding: 40px;
    /* Adapted Image 2 gradient border to Image 1 colors */
    border: 3px solid transparent;
    background-image: linear-gradient(var(--color-bg-card), var(--color-bg-card)), linear-gradient(135deg, var(--color-bg-dark), var(--color-secondary));
    background-origin: border-box;
    background-clip: padding-box, border-box;
    box-shadow: 0 10px 30px rgba(0,0,0,0.05);
    transition: var(--transition);
    position: relative;
}
.pricing-card:hover {
    transform: translateY(-10px) scale(1.02);
    box-shadow: 0 20px 50px rgba(41, 85, 230, 0.2);
}
.pricing-card h3 {
    text-align: center;
    font-size: 1.2rem;
    color: var(--color-text-main);
    margin-bottom: 15px;
}
.pricing-card .price {
    text-align: center;
    font-size: 3rem;
    font-weight: 900;
    color: var(--color-bg-darkest);
    margin-bottom: 30px;
}
.pricing-card .price span {
    font-size: 1rem;
    color: var(--color-text-muted);
}
.pricing-features {
    list-style: none;
    margin-bottom: 30px;
}
.pricing-features li {
    margin-bottom: 15px;
    display: flex;
    align-items: flex-start;
    gap: 10px;
    font-size: 0.95rem;
}
.pricing-features li i {
    color: var(--color-primary);
    margin-top: 4px;
}
.pricing-features .warning {
    color: #e63946;
    font-size: 0.85rem;
    margin-top: 20px;
    border-top: 1px dashed #e2e8f0;
    padding-top: 15px;
}
.pricing-card .btn {
    width: 100%;
    border-radius: 6px; /* Image 2 style buttons are less rounded */
    padding: 12px;
}

/* --- FAQ --- */
.faq-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 20px;
    max-width: 800px;
    margin: 0 auto;
}
.faq-item {
    background: var(--color-bg-card);
    padding: 25px;
    border-radius: var(--border-radius);
    box-shadow: 0 5px 15px rgba(0,0,0,0.03);
    border-left: 4px solid var(--color-primary);
}
.faq-item h4 {
    font-size: 1.2rem;
    color: var(--color-bg-darkest);
    margin-bottom: 10px;
}
.faq-item p {
    color: var(--color-text-muted);
}

/* --- Articles / Knowledge Base --- */
.articles-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 25px;
}
.article-card {
    background: var(--color-bg-card);
    padding: 30px;
    border-radius: var(--border-radius);
    box-shadow: 0 5px 20px rgba(0,0,0,0.04);
    transition: var(--transition);
}
.article-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 30px rgba(41, 85, 230, 0.1);
}
.article-card h4 {
    font-size: 1.1rem;
    margin-bottom: 15px;
}
.article-card a {
    color: var(--color-primary);
    text-decoration: none;
    font-weight: bold;
}

/* --- Reviews Slider --- */
.reviews-slider {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
    overflow: hidden;
    padding: 10px 40px;
}
.reviews-track {
    display: flex;
    transition: transform 0.5s cubic-bezier(0.25, 1, 0.5, 1);
}
.review-slide {
    min-width: 100%;
    padding: 0 10px;
    box-sizing: border-box;
}
.review-card {
    background: var(--color-bg-card);
    color: var(--color-text-main);
    padding: 40px 30px;
    border-radius: var(--border-radius);
    position: relative;
    box-shadow: 0 10px 30px rgba(11, 19, 43, 0.06);
    border: 1px solid #e2e8f0;
    text-align: center;
}
.review-card p {
    font-style: italic;
    color: var(--color-bg-darkest);
    margin-bottom: 20px;
    font-size: 1.1rem;
    line-height: 1.8;
}
.review-card .user {
    font-weight: bold;
    color: var(--color-primary);
    font-size: 1rem;
}
.slider-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: var(--color-bg-card);
    color: var(--color-primary);
    border: 1px solid #e2e8f0;
    box-shadow: 0 4px 10px rgba(0,0,0,0.05);
    width: 44px;
    height: 44px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition);
    z-index: 10;
}
.slider-btn:hover {
    background: var(--color-primary);
    color: #fff;
    border-color: var(--color-primary);
}
.slider-btn.prev {
    left: 10px;
}
.slider-btn.next {
    right: 10px;
}
.slider-dots {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin-top: 20px;
}
.slider-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--color-light);
    cursor: pointer;
    transition: var(--transition);
}
.slider-dot.active {
    background: var(--color-primary);
    transform: scale(1.2);
}
@media (max-width: 768px) {
    .reviews-slider {
        padding: 10px 0;
    }
    .slider-btn {
        display: none;
    }
}

/* --- Footer --- */
.footer {
    background: var(--color-bg-darkest);
    color: var(--color-light);
    text-align: center;
    padding: 40px 20px;
    margin-top: 60px;
}