/* TENDEX Animated Gradient Border Buttons */
.btn-glow {
    position: relative;
    padding: 12px 28px;
    font-weight: 600;
    color: #fff;
    background: rgba(13, 2, 33, 0.9);
    border: none;
    border-radius: 8px;
    cursor: pointer;
    overflow: hidden;
    transition: all 0.4s ease;
    z-index: 1;
    text-decoration: none;
    display: inline-block;
}
.btn-glow::before {
    content: '';
    position: absolute;
    top: -2px; left: -2px; right: -2px; bottom: -2px;
    background: linear-gradient(90deg, #00D9FF, #9333EA, #00D9FF, #9333EA);
    background-size: 300% 300%;
    border-radius: 10px;
    z-index: -2;
    animation: gradient-rotate 4s ease infinite;
}
.btn-glow::after {
    content: '';
    position: absolute;
    top: 2px; left: 2px; right: 2px; bottom: 2px;
    background: linear-gradient(135deg, rgba(13, 2, 33, 0.95), rgba(20, 5, 50, 0.95));
    border-radius: 6px;
    z-index: -1;
    transition: all 0.4s ease;
}
.btn-glow:hover::after {
    background: linear-gradient(135deg, rgba(0, 217, 255, 0.15), rgba(147, 51, 234, 0.15));
}
.btn-glow:hover {
    transform: translateY(-2px);
    box-shadow: 0 0 20px rgba(0, 217, 255, 0.4), 0 0 40px rgba(147, 51, 234, 0.3);
    color: #fff;
}
.btn-glow-solid {
    position: relative;
    padding: 12px 28px;
    font-weight: 600;
    color: #fff;
    background: linear-gradient(135deg, #00D9FF, #9333EA);
    background-size: 200% 200%;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    overflow: hidden;
    transition: all 0.4s ease;
    animation: gradient-shift 3s ease infinite;
    text-decoration: none;
    display: inline-block;
}
.btn-glow-solid::before {
    content: '';
    position: absolute;
    top: 0; left: -100%;
    width: 100%; height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    transition: left 0.6s ease;
}
.btn-glow-solid:hover::before { left: 100%; }
.btn-glow-solid:hover {
    transform: translateY(-2px);
    box-shadow: 0 0 25px rgba(0, 217, 255, 0.5), 0 0 50px rgba(147, 51, 234, 0.4);
    color: #fff;
}
.btn-glow-sm { padding: 8px 16px; font-size: 0.875rem; }
.btn-glow-lg { padding: 16px 36px; font-size: 1.125rem; }
@keyframes gradient-rotate {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}
@keyframes gradient-shift {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}
.text-glow { text-shadow: 0 0 10px rgba(0, 217, 255, 0.5); }