/* Base Styles */
:root {
    --primary: #9c27b0;
    --primary-dark: #7b1fa2;
    --primary-light: #ba68c8;
    --secondary: #673ab7;
    --secondary-dark: #512da8;
    --secondary-light: #9575cd;
    --light: #f3e5f5;
    --dark: #1a1a1a;
    --dark-translucent: rgba(26, 26, 26, 0.9);
    --text-main: #333;
    --text-light: #fff;
    --text-dark: #212121;
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 8px rgba(0, 0, 0, 0.12);
    --shadow-lg: 0 8px 16px rgba(0, 0, 0, 0.15);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --radius: 8px;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: var(--text-main);
    background-color: #f8f9fa;
    overflow-x: hidden;
}

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

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

ul {
    list-style: none;
}

h1, h2, h3, h4, h5, h6 {
    line-height: 1.3;
    color: var(--text-dark);
    margin-bottom: 1rem;
}

h1 {
    font-size: 2.5rem;
    font-weight: 600;
}

h2 {
    font-size: 2rem;
    font-weight: 600;
}

h3 {
    font-size: 1.5rem;
    font-weight: 500;
}

p {
    margin-bottom: 1.5rem;
}

/* Header */
header {
    background-color: white;
    box-shadow: var(--shadow-sm);
    padding: 1rem 5%;
    position: sticky;
    top: 0;
    z-index: 100;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    width: 160px;
}

.logo-svg {
    width: 100%;
    height: auto;
}

nav ul {
    display: flex;
    gap: 2rem;
}

nav ul li a {
    font-weight: 500;
    padding: 0.5rem 0;
    position: relative;
}

nav ul li a::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: 0;
    left: 0;
    background-color: var(--primary);
    transition: var(--transition);
}

nav ul li a:hover::after {
    width: 100%;
}

.menu-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
}

.menu-toggle span {
    display: block;
    width: 25px;
    height: 2px;
    background-color: var(--text-dark);
    margin: 5px 0;
    transition: var(--transition);
}

/* Hero Section */
.hero {
    display: flex;
    align-items: center;
    gap: 2rem;
    padding: 5% 5%;
    min-height: 80vh;
    background: linear-gradient(135deg, #f5f5f5 0%, var(--light) 100%);
}

.hero-content {
    flex: 1;
    max-width: 600px;
}

.hero-content h1 {
    color: var(--primary-dark);
    margin-bottom: 1rem;
}

.hero-content h2 {
    color: var(--secondary);
    font-size: 1.3rem;
    margin-bottom: 1.5rem;
}

.hero-content p {
    font-size: 1.1rem;
    color: var(--text-main);
    margin-bottom: 2rem;
}

.hero-graphic {
    flex: 1;
    max-width: 500px;
}

.brain-svg {
    width: 100%;
    height: auto;
    filter: drop-shadow(0 10px 15px rgba(0, 0, 0, 0.2));
}

.action-button {
    display: inline-block;
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    color: white;
    padding: 0.8rem 2rem;
    border-radius: 50px;
    font-weight: 500;
    letter-spacing: 0.5px;
    text-transform: uppercase;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
}

.action-button:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
    color: white;
    background: linear-gradient(135deg, var(--secondary) 0%, var(--primary) 100%);
}

/* Features Section */
.features {
    padding: 5% 5%;
    background-color: white;
}

.features h2 {
    text-align: center;
    color: var(--primary-dark);
    margin-bottom: 3rem;
    position: relative;
}

.features h2::after {
    content: '';
    position: absolute;
    width: 80px;
    height: 3px;
    background-color: var(--primary-light);
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    border-radius: 2px;
}

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

.feature-card {
    padding: 2rem;
    background-color: #fafafa;
    border-radius: var(--radius);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
}

.feature-icon {
    width: 70px;
    height: 70px;
    margin-bottom: 1.5rem;
}

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

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

/* CTA Section */
.cta {
    text-align: center;
    padding: 5% 5%;
    background: linear-gradient(135deg, var(--secondary-light) 0%, var(--primary-light) 100%);
    color: white;
}

.cta h2 {
    color: white;
    margin-bottom: 1rem;
    font-size: 2.2rem;
}

.cta p {
    font-size: 1.1rem;
    margin-bottom: 2rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.cta .action-button {
    background: white;
    color: var(--primary);
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.15);
}

.cta .action-button:hover {
    background: var(--light);
    color: var(--primary-dark);
}

/* Footer */
footer {
    background-color: var(--dark);
    color: white;
    padding: 4% 5% 2%;
}

.footer-columns {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 2rem;
    margin-bottom: 3rem;
}

.footer-column h4 {
    color: white;
    font-size: 1.2rem;
    margin-bottom: 1.5rem;
    border-bottom: 2px solid var(--primary);
    padding-bottom: 0.5rem;
    display: inline-block;
}

.footer-column p {
    opacity: 0.8;
}

.footer-column ul li {
    margin-bottom: 0.7rem;
}

.footer-column a {
    color: var(--primary-light);
}

.footer-column a:hover {
    color: white;
}

.footer-logo {
    margin-top: 1rem;
}

.footer-bottom {
    text-align: center;
    padding-top: 1.5rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    font-size: 0.9rem;
    opacity: 0.7;
}

/* Responsive Design */
@media (max-width: 992px) {
    .hero {
        flex-direction: column;
        text-align: center;
        padding: 10% 5%;
    }
    
    .hero-content, .hero-graphic {
        max-width: 100%;
    }
    
    .footer-columns {
        grid-template-columns: 1fr 1fr;
    }
    
    .footer-column:first-child {
        grid-column: span 2;
    }
}

@media (max-width: 768px) {
    .menu-toggle {
        display: block;
    }
    
    nav {
        position: fixed;
        top: 70px;
        right: -100%;
        width: 70%;
        height: calc(100vh - 70px);
        background-color: var(--dark-translucent);
        transition: var(--transition);
        backdrop-filter: blur(10px);
        -webkit-backdrop-filter: blur(10px);
    }
    
    nav.active {
        right: 0;
    }
    
    nav ul {
        flex-direction: column;
        gap: 0;
        padding: 2rem;
    }
    
    nav ul li {
        width: 100%;
    }
    
    nav ul li a {
        display: block;
        padding: 1rem 0;
        color: white;
    }
    
    .footer-columns {
        grid-template-columns: 1fr;
    }
    
    .footer-column:first-child {
        grid-column: span 1;
    }
    
    h1 {
        font-size: 2rem;
    }
    
    h2 {
        font-size: 1.8rem;
    }
}

@media (max-width: 480px) {
    .feature-grid {
        grid-template-columns: 1fr;
    }
    
    .action-button {
        width: 100%;
        text-align: center;
    }
}