:root {
    --primary-color: #9333ea;
    --primary-hover: #7e22ce;
    --text-color: #ffffff;
    --text-secondary: #9ca3af;
    --bg-color: #0f0f13;
    --bg-secondary: #161622;
    --pink: #ec4899;
    --green: #22c55e;
    --yellow: #eab308;
    --card-bg: rgba(31, 41, 55, 0.4);
    --card-hover: rgba(41, 51, 65, 0.6);
    --animation-slow: 1s;
    --animation-medium: 0.6s;
    --animation-fast: 0.3s;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--bg-color);
    overflow-x: hidden;
}

/* Modern button styles */
.btn {
    padding: 0.75rem 2rem;
    border-radius: 9999px;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--animation-fast) ease;
    border: none;
    outline: none;
    position: relative;
    overflow: hidden;
}

.btn::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 150%;
    height: 150%;
    background: rgba(255, 255, 255, 0.1);
    transform: translate(-50%, -50%) scale(0);
    border-radius: 50%;
    transition: transform 0.6s ease-out;
}

.btn:active::after {
    transform: translate(-50%, -50%) scale(1);
    opacity: 0;
}

.btn.primary {
    background-image: linear-gradient(135deg, var(--primary-color), #6366f1);
    color: var(--text-color);
    text-decoration: none;
    box-shadow: 0 4px 15px rgba(147, 51, 234, 0.3);
}

.btn.primary:hover {
    background-image: linear-gradient(135deg, var(--primary-hover), #4f46e5);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(147, 51, 234, 0.4);
}

.btn.secondary {
    background-color: transparent;
    border: 2px solid var(--text-color);
    color: var(--text-color);
    box-shadow: 0 4px 15px rgba(255, 255, 255, 0.1);
}

.btn.secondary:hover {
    background-color: var(--text-color);
    color: var (--bg-color);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(255, 255, 255, 0.15);
}

section {
    padding: 5rem 1rem;
    position: relative;
}

h2 {
    font-size: 2.5rem;
    margin-bottom: 2rem;
    text-align: center;
    position: relative;
    display: inline-block;
    left: 50%;
    transform: translateX(-50%);
    width: auto;
}

h2::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background: linear-gradient(90deg, var(--pink), var(--primary-color));
    border-radius: 3px;
}

.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 1rem;
}

/* Animation classes */
.fade-in {
    animation: fadeIn var(--animation-medium) ease-in-out;
}

.slide-up {
    animation: slideUp var(--animation-medium) ease-out;
}

.slide-in-left {
    animation: slideInLeft var(--animation-medium) ease-out;
}

.slide-in-right {
    animation: slideInRight var(--animation-medium) ease-out;
}

.bounce {
    animation: bounce var(--animation-slow) ease infinite;
}

.pulse {
    animation: pulse 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

/* Animations */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

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

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

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

@keyframes bounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.7; }
}

/* Hidden class for reveal animations */
.hidden {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity var(--animation-medium) ease, 
                transform var(--animation-medium) ease;
}

.visible {
    opacity: 1;
    transform: translateY(0);
}

@media (max-width: 768px) {
    section {
        padding: 3rem 1rem;
    }

    h2 {
        font-size: 2rem;
    }
}