@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800;900&display=swap');

:root {
    --primary-color: #8a2be2;
    --primary-dark: #6a1bb2;
    --primary-light: #a855f5;
    --accent-color: #1100ff;
    --accent-light: #3b3bff;
    --bg-primary: #0a0909;
    --bg-secondary: #0f0f1a;
    --text-primary: #ffffff;
    --text-secondary: rgba(255, 255, 255, 0.8);
    --text-muted: rgba(255, 255, 255, 0.6);
    --gradient-primary: linear-gradient(135deg, #8a2be2 0%, #1100ff 100%);
    --gradient-text: linear-gradient(135deg, #8a2be2 0%, #1100ff 50%, #00d4ff 100%);
}

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

html, body {
    height: 100%;
    width: 100%;
    overflow: hidden;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    position: relative;
}

#particles-js {
    position: fixed;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    z-index: 0;
    pointer-events: none;
    background: var(--bg-primary);
}

.landing-container {
    position: relative;
    z-index: 1;
    width: 100%;
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.landing-content {
    text-align: center;
    max-width: 800px;
    animation: fadeInUp 1s ease-out;
}

.landing-title {
    font-size: clamp(64px, 15vw, 140px);
    font-weight: 900;
    margin-bottom: 20px;
    line-height: 1.1;
    letter-spacing: 2px;
}

.gradient-text {
    background: var(--gradient-text);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: gradient-shift 3s ease infinite;
    background-size: 200% 200%;
    display: inline-block;
}

@keyframes gradient-shift {
    0%, 100% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
}

.landing-subtitle {
    font-size: clamp(18px, 3vw, 28px);
    color: var(--text-secondary);
    margin-bottom: 50px;
    font-weight: 500;
    letter-spacing: 1px;
}

.landing-button {
    display: inline-flex;
    align-items: center;
    gap: 15px;
    padding: 20px 50px;
    background: var(--gradient-primary);
    color: white;
    text-decoration: none;
    border-radius: 15px;
    font-weight: 700;
    font-size: clamp(16px, 2.5vw, 20px);
    transition: all 0.3s ease;
    border: 2px solid transparent;
    position: relative;
    overflow: hidden;
    box-shadow: 0 10px 40px rgba(138, 43, 226, 0.3);
}

.landing-button::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s ease;
}

.landing-button:hover::before {
    left: 100%;
}

.landing-button:hover {
    transform: translateY(-5px) scale(1.05);
    box-shadow: 0 15px 50px rgba(138, 43, 226, 0.5);
    border-color: rgba(138, 43, 226, 0.5);
}

.landing-button:active {
    transform: translateY(-2px) scale(1.02);
}

.landing-button span {
    position: relative;
    z-index: 1;
}

.landing-button i {
    position: relative;
    z-index: 1;
    transition: transform 0.3s ease;
}

.landing-button:hover i {
    transform: translateX(5px);
}

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

/* Responsive */
@media (max-width: 768px) {
    .landing-title {
        font-size: clamp(48px, 12vw, 96px);
    }
    
    .landing-subtitle {
        font-size: clamp(16px, 4vw, 24px);
        margin-bottom: 40px;
    }
    
    .landing-button {
        padding: 18px 40px;
        font-size: 16px;
    }
}

@media (max-width: 480px) {
    .landing-title {
        font-size: clamp(40px, 10vw, 72px);
    }
    
    .landing-button {
        padding: 16px 35px;
        flex-direction: column;
        gap: 10px;
    }
    
    .landing-button i {
        transform: rotate(90deg);
    }
    
    .landing-button:hover i {
        transform: rotate(90deg) translateX(5px);
    }
}