.gradient-bg {
    background: linear-gradient(135deg, #0f172a 0%, #1e293b 50%, #0f172a 100%);
}

.card {
    background: rgba(30, 41, 59, 0.8);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(71, 85, 105, 0.5);
}

.input-field {
    background: rgba(15, 23, 42, 0.8);
    border: 1px solid rgba(71, 85, 105, 0.5);
}

.input-field:focus {
    border-color: #22d3ee;
    outline: none;
    box-shadow: 0 0 0 2px rgba(34, 211, 238, 0.3);
}

.highlight-card {
    background: linear-gradient(135deg, rgba(34, 211, 238, 0.1) 0%, rgba(6, 182, 212, 0.1) 100%);
    border: 1px solid rgba(34, 211, 238, 0.3);
}

.tab-active {
    background: rgba(34, 211, 238, 0.2);
    border-bottom: 2px solid #22d3ee;
}

@keyframes blink {
    0%, 50% { opacity: 1; }
    51%, 100% { opacity: 0; }
}

.cursor-blink {
    animation: blink 1s infinite;
}

.tooltip {
    position: relative;
    cursor: help;
    border-bottom: 1px dotted #6b7280;
}

.tooltip:hover::after {
    content: attr(data-tip);
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%);
    background: #1e293b;
    border: 1px solid #475569;
    color: #e2e8f0;
    padding: 8px 12px;
    border-radius: 6px;
    font-size: 12px;
    white-space: nowrap;
    max-width: 300px;
    white-space: normal;
    z-index: 100;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.3);
}

.tooltip:hover::before {
    content: '';
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%) translateY(100%);
    border: 6px solid transparent;
    border-top-color: #475569;
    z-index: 100;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.animate-fade-in {
    animation: fadeIn 0.3s ease-out;
}

@media print {
    .gradient-bg {
        background: white;
    }
    .card {
        background: white;
        border: 1px solid #ccc;
    }
    nav, button {
        display: none !important;
    }
    .tab-section {
        display: block !important;
    }
    .text-gray-100, .text-gray-400, .text-white {
        color: #333 !important;
    }
}