/* CSS Reset & Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-blue: #4F46E5;
    --primary-purple: #7C3AED;
    --dark-bg: #0F172A;
    --light-text: #F8FAFC;
    --gray-text: #94A3B8;
    --card-bg: #1E293B;
    --hover-card: #334155;
    --gradient-1: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --gradient-2: linear-gradient(135deg, #4F46E5 0%, #7C3AED 100%);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', sans-serif;
    background-color: var(--dark-bg);
    color: var(--light-text);
    line-height: 1.6;
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

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

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    overflow: hidden;
}

.gradient-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.4;
    animation: float 20s ease-in-out infinite;
}

.orb-1 {
    width: 500px;
    height: 500px;
    background: var(--gradient-1);
    top: -10%;
    left: -10%;
    animation-delay: 0s;
}

.orb-2 {
    width: 400px;
    height: 400px;
    background: var(--gradient-2);
    bottom: -10%;
    right: -5%;
    animation-delay: -7s;
}

.orb-3 {
    width: 350px;
    height: 350px;
    background: linear-gradient(135deg, #667eea 0%, #4F46E5 100%);
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    animation-delay: -14s;
}

@keyframes float {
    0%, 100% {
        transform: translate(0, 0) scale(1);
    }
    25% {
        transform: translate(50px, -50px) scale(1.1);
    }
    50% {
        transform: translate(-30px, 30px) scale(0.9);
    }
    75% {
        transform: translate(30px, 50px) scale(1.05);
    }
}

.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
    max-width: 800px;
    animation: fadeInUp 1s ease-out;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(40px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hero-title {
    font-size: clamp(3rem, 8vw, 5rem);
    font-weight: 800;
    margin-bottom: 1.5rem;
    background: linear-gradient(135deg, #667eea 0%, #F8FAFC 50%, #764ba2 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: fadeInUp 1s ease-out 0.2s both;
}

.hero-subtitle {
    font-size: clamp(1.1rem, 3vw, 1.5rem);
    color: var(--gray-text);
    margin-bottom: 3rem;
    animation: fadeInUp 1s ease-out 0.4s both;
}

.cta-button {
    position: relative;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 1rem 2.5rem;
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--light-text);
    background: var(--gradient-2);
    border: none;
    border-radius: 50px;
    cursor: pointer;
    overflow: hidden;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    animation: fadeInUp 1s ease-out 0.6s both;
    box-shadow: 0 10px 40px rgba(79, 70, 229, 0.4);
}

.cta-button::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #7C3AED 0%, #4F46E5 100%);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.cta-button:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 50px rgba(79, 70, 229, 0.6);
}

.cta-button:hover::before {
    opacity: 1;
}

.cta-button:active {
    transform: translateY(-1px);
}

.cta-text,
.cta-arrow {
    position: relative;
    z-index: 1;
    transition: transform 0.3s ease;
}

.cta-button:hover .cta-arrow {
    transform: translateX(5px);
}

.cta-button.clicked {
    animation: buttonPulse 0.6s ease;
}

@keyframes buttonPulse {
    0%, 100% {
        transform: translateY(-3px) scale(1);
    }
    50% {
        transform: translateY(-3px) scale(1.05);
    }
}

/* Features Section */
.features {
    padding: 6rem 2rem;
    position: relative;
    z-index: 1;
}

.features-title {
    text-align: center;
    font-size: clamp(2rem, 5vw, 3rem);
    margin-bottom: 4rem;
    font-weight: 700;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.feature-card {
    background: var(--card-bg);
    padding: 2.5rem 2rem;
    border-radius: 20px;
    transition: transform 0.3s ease, box-shadow 0.3s ease, background-color 0.3s ease;
    border: 1px solid rgba(255, 255, 255, 0.1);
    cursor: pointer;
    opacity: 0;
    animation: fadeInUp 0.6s ease-out forwards;
}

.feature-card:nth-child(1) { animation-delay: 0.1s; }
.feature-card:nth-child(2) { animation-delay: 0.2s; }
.feature-card:nth-child(3) { animation-delay: 0.3s; }
.feature-card:nth-child(4) { animation-delay: 0.4s; }

.feature-card:hover {
    transform: translateY(-10px);
    background: var(--hover-card);
    box-shadow: 0 20px 60px rgba(79, 70, 229, 0.3);
}

.feature-icon {
    width: 60px;
    height: 60px;
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-2);
    border-radius: 15px;
    transition: transform 0.3s ease;
}

.feature-card:hover .feature-icon {
    transform: scale(1.1) rotate(5deg);
}

.feature-icon svg {
    width: 30px;
    height: 30px;
    color: var(--light-text);
}

.feature-title {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--light-text);
}

.feature-description {
    font-size: 1rem;
    color: var(--gray-text);
    line-height: 1.7;
}

/* Footer */
.footer {
    padding: 3rem 2rem;
    text-align: center;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--gray-text);
}

/* Responsive Design */
@media (max-width: 768px) {
    .hero {
        min-height: 90vh;
        padding: 1rem;
    }

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

    .hero-subtitle {
        font-size: 1.1rem;
        margin-bottom: 2rem;
    }

    .cta-button {
        padding: 0.875rem 2rem;
        font-size: 1rem;
    }

    .features {
        padding: 4rem 1rem;
    }

    .features-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .features-title {
        font-size: 2rem;
        margin-bottom: 2.5rem;
    }

    .gradient-orb {
        filter: blur(60px);
    }

    .orb-1 {
        width: 300px;
        height: 300px;
    }

    .orb-2 {
        width: 250px;
        height: 250px;
    }

    .orb-3 {
        width: 200px;
        height: 200px;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2rem;
    }

    .feature-card {
        padding: 2rem 1.5rem;
    }
}

/* Smooth Scrolling */
html {
    scroll-behavior: smooth;
}

/* Selection Colors */
::selection {
    background: var(--primary-purple);
    color: var(--light-text);
}

::-moz-selection {
    background: var(--primary-purple);
    color: var(--light-text);
}