:root {
    --primary-color: #0d6efd;
    --secondary-color: #6c757d;
    --bg-color: #f8f9fa;
    --text-color: #212529;
    --accent-color: #ffc107;
    --border-radius: 0.5rem;
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.12), 0 1px 2px rgba(0,0,0,0.24);
    --shadow-md: 0 4px 6px rgba(0,0,0,0.1), 0 2px 4px rgba(0,0,0,0.06);
}

body {
    background-color: var(--bg-color);
    color: var(--text-color);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    line-height: 1.6;
    margin: 0;
    padding: 0;
}

/* Base Elements */
a { text-decoration: none; }
a:hover { text-decoration: none; }
h1 { color: black; }
hr {
    display: block;
    margin: 1rem auto;
    border-style: inset;
    border-width: 0.5px;
}

/* Cards & Layout */
.card {
    border: none;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-sm);
    transition: transform 0.2s;
}
.card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
}

/* Buttons */
.btn-primary {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
}
.batn {
    font-size: 2em;
    background: var(--primary-color);
    color: #fff;
    border: 0.25rem solid var(--primary-color);
    padding: 0.85em 0.75em;
    position: relative;
    z-index: 1;
    overflow: hidden;
}
.batn:hover { color: #3498db; }
.batn::after {
    content: "";
    background: #ecf0f1;
    position: absolute;
    z-index: -1;
    padding: 0.85em 0.75em;
    display: block;
    left: -20%;
    right: -20%;
    top: 0;
    bottom: 0;
    transform: skewX(-45deg) scale(0, 1);
    transition: all 0.3s ease;
}
.batn:hover::after {
    transform: skewX(-45deg) scale(1, 1);
}

/* Animations */
.blink_me { animation: blinker 1.3s linear infinite; }
@keyframes blinker { 50% { opacity: 0.80; } }

/* Footer */
footer {
    padding: 2rem;
    text-align: center;
    background-color: #333;
    color: white;
    margin-top: 3rem;
    width: 100%;
}
.footer-text {
    color: white;
    font-size: 1.5rem;
    font-weight: bold;
}