/* Define a color palette using CSS variables for consistency and easy theming */
:root {
    --color-bg-darkest: #1a202c;
    --color-bg-dark: #2d3748;
    --color-bg-medium: #4a5568;
    --color-bg-light: #5a677e;
    --color-bg-modal: #2f3e52;
    --color-bg-hover: #3d4a5d;

    --color-text-light: #e2e8f0;
    --color-text-medium: #a0aec0;
    --color-text-white: #ffffff;

    --color-border-medium: #4a5568;
    --color-border-dashed: #6c757d;

    --color-primary: #3b82f6;
    --color-primary-light: #63b3ed;
    --color-primary-text: #60a5fa;
    --color-primary-alt: #4299e1;
    --color-primary-alt-dark: #3182ce;

    --color-success: #38a169;
    --color-success-dark: #2f855a;
    --color-success-icon: #48bb78;
    --color-success-bg-review: #1f7a1f;

    --color-danger: #e53e3e;
    --color-danger-icon: #fc8181;
    --color-danger-bg-review: #992929;

    --shadow-sm: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 15px 25px rgba(0, 0, 0, 0.5), 0 5px 10px rgba(0, 0, 0, 0.3);
}

/* --- Global Styles --- */
body {
    font-family: 'Inter', sans-serif;
    background-color: var(--color-bg-darkest);
    color: var(--color-text-light);
}

/* --- Utility Classes --- */
.hidden {
    display: none !important;
}

/* --- Shared Component: Drop Zone --- */
.drop-zone {
    border: 2px dashed var(--color-border-dashed);
    border-radius: 0.5rem;
    padding: 2rem;
    text-align: center;
    color: var(--color-text-medium);
    cursor: pointer;
    transition: all 0.2s ease-in-out;
    background-color: var(--color-bg-dark);
}

/* --- Shared Component: Answer Choices --- */
.form-check {
    background-color: var(--color-bg-medium);
    padding: 1rem;
    border-radius: 0.5rem;
    transition: all 0.3s ease;
    margin-bottom: 0.75rem;
    border: 1px solid transparent;
    cursor: pointer;
}

.form-check:hover {
    background-color: var(--color-bg-light);
}

.form-check.selected-temp {
    animation: pulse-border 0.4s ease-in-out;
    border-color: var(--color-primary-light) !important;
}

@keyframes pulse-border {
    0% { border-color: transparent; }
    50% { border-color: var(--color-primary-light); }
    100% { border-color: transparent; }
}

.form-check.border-success {
    border: 2px solid var(--color-success);
}

.form-check.border-danger {
    border: 2px solid var(--color-danger);
}

.form-check label {
    color: var(--color-text-light);
    cursor: inherit;
    width: 100%;
}

/* --- Shared Component: Rationale & Hint --- */
.rationale {
    font-size: 0.875rem;
    color: var(--color-text-medium);
    margin-top: 0.5rem;
    padding-top: 0.5rem;
    border-top: 1px solid var(--color-border-medium);
}

.hint {
    font-style: italic;
    color: var(--color-text-medium);
    margin-top: 0.5rem;
    padding: 0.75rem;
    background-color: var(--color-bg-medium);
    border-radius: 0.5rem;
    display: none; /* Hidden by default */
}

/* --- Shared Component: Navigation --- */
.navigation {
    display: flex;
    justify-content: space-between;
    margin-top: 2rem;
    padding-top: 1rem;
    border-top: 1px solid var(--color-border-medium);
}

.navigation button {
    min-width: 120px;
    padding: 0.75rem 1.5rem;
    border-radius: 0.5rem;
    font-weight: 600;
}

/* --- Shared Component: Review List --- */
.list-group-item.bg-green-700 {
    background-color: var(--color-success-bg-review);
}

.list-group-item.bg-red-700 {
    background-color: var(--color-danger-bg-review);
}

.list-group-item {
    color: var(--color-text-white);
    cursor: pointer;
    transition: background-color 0.2s ease;
}

.list-group-item:hover {
    background-color: var(--color-bg-hover);
}

.list-group-item strong {
    color: var(--color-text-white);
}

/* --- Shared Component: Modal --- */
/* Use these classes for all modals for a consistent look */
.modal-content {
    background-color: var(--color-bg-modal);
    color: var(--color-text-light);
    border-radius: 1rem;
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--color-border-medium);
}

.modal-header {
    border-bottom: 1px solid var(--color-border-medium);
}

.modal-title {
    color: var(--color-text-white);
    font-size: 1.75rem;
    font-weight: bold;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.modal-title .modal-icon {
    font-size: 2rem;
}

.modal-title.success .modal-icon {
    color: var(--color-success-icon);
}

.modal-title.error .modal-icon {
    color: var(--color-danger-icon);
}

.modal-body {
    color: var(--color-text-medium);
    line-height: 1.6;
}

.modal-footer {
    border-top: 1px solid var(--color-border-medium);
    justify-content: flex-end;
}

/* --- Shared Component: Media Display --- */
.question-media img, .question-media video, .question-media audio,
.media-preview img, .media-preview video, .media-preview audio {
    width: auto;
    display: block;
    margin: 0 auto;
    border-radius: 0.5rem;
    object-fit: contain;
}

.question-media audio,
.media-preview audio {
    width: 100%;
    max-width: 100%;
    height: auto;
    min-height: 50px;
    background-color: var(--color-bg-darkest);
}