/* Global Styles for AiYuti Static Site */

:root {
    --background: #05050A;
    --foreground: #eef2ff;
    --primary: #6366f1;
    --primary-glow: rgba(99, 102, 241, 0.4);
    --secondary: #a855f7;
    --accent: #22d3ee;
    --card-bg: rgba(255, 255, 255, 0.03);
    --card-border: rgba(255, 255, 255, 0.1);
}

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

html,
body {
    max-width: 100vw;
    overflow-x: hidden;
    background-color: var(--background);
    color: var(--foreground);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen',
        'Ubuntu', 'Cantarell', 'Fira Sans', 'Droid Sans', 'Helvetica Neue',
        sans-serif;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    position: relative;
    line-height: 1.6;
}

/* Ensure content sits above the background animation */
main,
nav,
footer,
header {
    position: relative;
    z-index: 1;
}

a {
    color: inherit;
    text-decoration: none;
    transition: opacity 0.2s;
}

a:hover {
    opacity: 0.8;
}

/* Scrollbar */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--background);
}

::-webkit-scrollbar-thumb {
    background: #333;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: #555;
}

/* Background Animation Canvas */
#background-canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    z-index: 0;
    pointer-events: none;
    /* Let clicks pass through */
    opacity: 0.7;
    /* Richer, more visible effect */
}

/* Section Styles */
.section {
    padding: 4rem 1.5rem;
    max-width: 1200px;
    margin: 0 auto;
}

/* Gradient Text */
.gradient-text {
    background: linear-gradient(to right, #6366f1, #a855f7, #ec4899);
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* Button Styles */
.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    border-radius: 8px;
    font-weight: 600;
    font-size: 1rem;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    cursor: pointer;
    border: none;
    text-align: center;
}

.btn-primary {
    background: linear-gradient(135deg, #6366f1, #a855f7);
    color: white;
    box-shadow: 0 4px 15px rgba(99, 102, 241, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(99, 102, 241, 0.4);
}

.btn-secondary {
    background: transparent;
    color: var(--foreground);
    border: 2px solid rgba(255, 255, 255, 0.1);
}

.btn-secondary:hover {
    border-color: var(--primary);
    background: rgba(99, 102, 241, 0.1);
}

/* Card Styles */
.card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 12px;
    padding: 2rem;
    transition: all 0.3s ease;
}

.card:hover {
    transform: translateY(-4px);
    border-color: rgba(99, 102, 241, 0.3);
    box-shadow: 0 8px 30px rgba(99, 102, 241, 0.15);
}

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

    .btn {
        padding: 0.65rem 1.25rem;
        font-size: 0.95rem;
    }
}