/* app/css/gpa-percentage-calculator.css */
/* GPA to Percentage Calculator - Custom Styles */

/* Input Styles */
.gpa-input {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 2px solid #e5e7eb;
    border-radius: 0.75rem;
    font-size: 1rem;
    transition: all 0.2s ease;
    background-color: white;
}

.gpa-input:focus {
    outline: none;
    border-color: #3b82f6;
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.gpa-input:hover {
    border-color: #93c5fd;
}

/* Result Display */
#percentageResult {
    font-family: monospace;
    font-size: 3rem;
    font-weight: bold;
    letter-spacing: -0.02em;
}

/* Table Row Hover Effect */
tbody tr {
    transition: background-color 0.2s ease;
    cursor: pointer;
}

tbody tr:hover {
    background-color: #eff6ff;
}

/* Reverse Result Animation */
#reverseResult {
    animation: fadeInUp 0.3s ease-out;
}

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

/* Number Input Customization */
input[type="number"]::-webkit-inner-spin-button,
input[type="number"]::-webkit-outer-spin-button {
    opacity: 0.5;
}

input[type="number"]::-webkit-inner-spin-button:hover,
input[type="number"]::-webkit-outer-spin-button:hover {
    opacity: 1;
}

/* Select Dropdown Styling */
select.gpa-input {
    cursor: pointer;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 20 20'%3E%3Cpath stroke='%236b7280' stroke-linecap='round' stroke-linejoin='round' stroke-width='1.5' d='M6 8l4 4 4-4'/%3E%3C/svg%3E");
    background-position: right 0.75rem center;
    background-repeat: no-repeat;
    background-size: 1.25rem;
    padding-right: 2.5rem;
    appearance: none;
}

/* Error Message */
#errorDisplay {
    animation: slideDown 0.3s ease-out;
}

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

/* Responsive Adjustments */
@media (max-width: 768px) {
    .gpa-input {
        font-size: 0.875rem;
        padding: 0.625rem 0.875rem;
    }
    
    #percentageResult {
        font-size: 2rem;
    }
}

/* Print Styles */
@media print {
    .gpa-input,
    button:not(.no-print),
    .bg-blue-600,
    .bg-green-600,
    .no-print {
        display: none !important;
    }
    
    .gpa-input {
        border: none;
        background: transparent;
        padding: 0;
    }
    
    select.gpa-input {
        appearance: none;
        background: transparent;
    }
}

/* Focus Ring */
*:focus-visible {
    outline: 2px solid #3b82f6;
    outline-offset: 2px;
    border-radius: 0.25rem;
}

/* Disabled Button State */
button:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
}

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

::-webkit-scrollbar-track {
    background: #f1f5f9;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb {
    background: #3b82f6;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: #2563eb;
}

/* Grade Color Coding */
.text-grade-a { color: #16a34a; }
.text-grade-b { color: #2563eb; }
.text-grade-c { color: #f59e0b; }
.text-grade-d { color: #f97316; }
.text-grade-f { color: #dc2626; }