.glass-card {
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 2px solid var(--glass-border);
    border-radius: var(--border-radius);
    padding: var(--space-md);
    transition: all var(--duration-normal) var(--ease-smooth);
    position: relative;
    box-shadow: var(--shadow-md);
}

.glass-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: rgba(0, 184, 148, 0.25);
}

.glass-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    border-radius: var(--border-radius);
    padding: 2px;
    background: var(--gradient-animated);
    background-size: 200% 200%;
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    opacity: 0.15;
    transition: opacity var(--duration-normal) var(--ease-smooth);
    animation: gradient-rotate 4s ease infinite;
    pointer-events: none;
}

.glass-card:hover::before {
    opacity: 0.4;
}

/* Dark mode - bordas mais sutis */
[data-theme="dark"] .glass-card::before,
body.dark-mode .glass-card::before {
    opacity: 0;
}

[data-theme="dark"] .glass-card:hover::before,
body.dark-mode .glass-card:hover::before {
    opacity: 0.6;
}