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

:root {
    --primary: #a78bfa;
    --secondary: #60a5fa;
    --dark-bg: #0a0e27;
    --dark-surface: #1a1a4d;
    --text-primary: #e0e0ff;
    --text-secondary: #b8b8ff;
    --border-color: rgba(167, 139, 250, 0.3);
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, var(--dark-bg) 0%, var(--dark-surface) 50%, var(--dark-bg) 100%);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

/* Navigation */
nav {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(10, 14, 39, 0.95);
    backdrop-filter: blur(10px);
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    z-index: 1000;
    border-bottom: 1px solid var(--border-color);
}

.logo {
    font-size: 1.5rem;
    font-weight: bold;
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-decoration: none;
    cursor: pointer;
}

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

nav a {
    color: var(--text-primary);
    text-decoration: none;
    transition: color 0.3s ease;
    cursor: pointer;
    font-size: 0.95rem;
}

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

nav a.active {
    color: var(--primary);
    border-bottom: 2px solid var(--primary);
    padding-bottom: 0.25rem;
}

.nav-spacer {
    flex: 1;
}

.cta-button {
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    color: white;
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 50px;
    cursor: pointer;
    font-weight: 600;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    text-decoration: none;
}

.cta-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(167, 139, 250, 0.4);
}

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

.secondary-button:hover {
    background: rgba(167, 139, 250, 0.1);
}

main {
    margin-top: 60px;
}

/* Sections */
section {
    padding: 5rem 2rem;
}

section:nth-child(even) {
    background: linear-gradient(180deg, rgba(26, 26, 77, 0.3) 0%, rgba(10, 14, 39, 0.5) 100%);
}

.section-title {
    font-size: 2.5rem;
    text-align: center;
    margin-bottom: 3rem;
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
}

.content-section {
    max-width: 900px;
    margin: 0 auto;
}

.content-section h2 {
    font-size: 2rem;
    margin-bottom: 1.5rem;
    color: var(--primary);
}

.content-section h3 {
    font-size: 1.5rem;
    margin-top: 2rem;
    margin-bottom: 1rem;
    color: var(--primary);
}

.content-section p {
    margin-bottom: 1rem;
    line-height: 1.8;
    color: var(--text-secondary);
}

.content-section ul,
.content-section ol {
    margin-left: 2rem;
    margin-bottom: 1.5rem;
}

.content-section li {
    margin-bottom: 0.75rem;
    color: var(--text-secondary);
}

.content-section a {
    color: var(--primary);
    text-decoration: none;
    border-bottom: 1px solid var(--primary);
    transition: color 0.3s ease;
}

.content-section a:hover {
    color: var(--secondary);
    border-bottom-color: var(--secondary);
}

/* Cards */
.card {
    background: linear-gradient(135deg, rgba(167, 139, 250, 0.1) 0%, rgba(96, 165, 250, 0.05) 100%);
    padding: 2rem;
    border-radius: 15px;
    border: 1px solid var(--border-color);
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
}

.card:hover {
    transform: translateY(-10px);
    border-color: rgba(167, 139, 250, 0.6);
    box-shadow: 0 15px 40px rgba(167, 139, 250, 0.2);
}

.card-title {
    font-size: 1.3rem;
    font-weight: bold;
    color: var(--primary);
    margin-bottom: 1rem;
}

.card-description {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

/* Grid */
.grid {
    display: grid;
    gap: 2rem;
    margin: 2rem 0;
}

.grid-2 {
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

.grid-3 {
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

.grid-4 {
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
}

/* Hero */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 2rem;
    position: relative;
    overflow: hidden;
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 800px;
}

.hero h1 {
    font-size: 4rem;
    font-weight: 900;
    margin-bottom: 1rem;
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero p {
    font-size: 1.5rem;
    margin-bottom: 2rem;
    color: var(--text-secondary);
}

/* Animations */
@keyframes float {
    0%, 100% { transform: translateY(0px) rotate(0deg); }
    50% { transform: translateY(30px) rotate(5deg); }
}

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

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

.float-animation {
    animation: float 6s ease-in-out infinite;
}

.slide-in-down {
    animation: slideInDown 0.8s ease-out;
}

.slide-in-up {
    animation: slideInUp 0.8s ease-out;
}

/* Footer */
footer {
    background: rgba(10, 14, 39, 0.95);
    border-top: 1px solid var(--border-color);
    padding: 3rem 2rem;
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-section h3 {
    color: var(--primary);
    margin-bottom: 1rem;
    font-size: 1.1rem;
}

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

.footer-section a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color 0.3s ease;
    display: block;
    margin-bottom: 0.5rem;
}

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

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid var(--border-color);
    color: var(--text-secondary);
    font-size: 0.85rem;
}

.social-links {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
    margin: 1rem 0;
}

.social-link {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    text-decoration: none;
    font-weight: bold;
    transition: transform 0.3s ease;
}

.social-link:hover {
    transform: scale(1.2) rotate(5deg);
}

/* Responsive */
@media (max-width: 768px) {
    nav {
        flex-direction: column;
        gap: 1rem;
    }

    nav ul {
        gap: 1rem;
        font-size: 0.85rem;
        flex-direction: column;
        width: 100%;
        text-align: center;
    }

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

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

    .section-title {
        font-size: 1.8rem;
    }

    .grid-2,
    .grid-3,
    .grid-4 {
        grid-template-columns: 1fr;
    }

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

    .footer-section a {
        display: inline-block;
        margin: 0 0.5rem;
    }
}

/* Utilities */
.text-center {
    text-align: center;
}

.text-left {
    text-align: left;
}

.text-right {
    text-align: right;
}

.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mt-4 { margin-top: 2rem; }

.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.mb-4 { margin-bottom: 2rem; }

.p-2 { padding: 1rem; }
.p-3 { padding: 1.5rem; }
.p-4 { padding: 2rem; }