/**
 * Modal Styles for Polish Language Learning App
 */

.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 10000;
    backdrop-filter: blur(4px);
}

.modal-overlay.active {
    display: flex;
}

.modal-content {
    background: var(--card-bg, #1e293b);
    border-radius: 12px;
    max-width: 500px;
    width: 90%;
    max-height: 80vh;
    overflow-y: auto;
    border: 1px solid var(--border-color, #334155);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    position: relative;
    /* Remove animation to prevent movement */
}

/* Simple fade in animation without transform */
@keyframes modalFadeIn {
    from {
        opacity: 0;
        transform: scale(0.95);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

.modal-overlay.active .modal-content {
    animation: modalFadeIn 0.2s ease-out;
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 24px;
    border-bottom: 1px solid var(--border-color, #334155);
}

.modal-header h3 {
    margin: 0;
    color: var(--text-primary, #f1f5f9);
    font-size: 18px;
    font-weight: 600;
}

.close-modal {
    background: none;
    border: none;
    font-size: 24px;
    color: var(--text-secondary, #cbd5e1);
    cursor: pointer;
    padding: 4px;
    border-radius: 4px;
    transition: all 0.2s;
}

.close-modal:hover {
    background: var(--hover-bg, #475569);
    color: var(--text-primary, #f1f5f9);
}

.modal-body {
    padding: 24px;
}

.modal-body p {
    color: var(--text-secondary, #cbd5e1);
    margin-bottom: 20px;
    line-height: 1.5;
}

.modal-buttons {
    display: flex;
    gap: 12px;
    margin-bottom: 20px;
}

.btn {
    padding: 12px 20px;
    border-radius: 6px;
    border: none;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
    flex: 1;
    text-align: center;
    text-decoration: none;
    display: inline-block;
}

.btn-primary {
    background: var(--accent-color, #3b82f6);
    color: white;
}

.btn-primary:hover {
    background: var(--accent-hover, #2563eb);
}

.btn-secondary {
    background: var(--secondary-bg, #374151);
    color: var(--text-primary, #f1f5f9);
    border: 1px solid var(--border-color, #4b5563);
}

.btn-secondary:hover {
    background: var(--secondary-hover, #4b5563);
}

/* Language Modal Specific Styles */
.language-modal .modal-content {
    max-width: 600px;
}

.language-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: 16px;
    margin-bottom: 20px;
}

.expand-languages-btn {
    width: 100%;
    padding: 12px;
    background: var(--accent-color, #3b82f6);
    color: white;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-size: 14px;
    margin-bottom: 16px;
    transition: background-color 0.3s ease;
}

.expand-languages-btn:hover {
    background: var(--accent-color-hover, #2563eb);
}

.additional-languages {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: 16px;
    margin-top: 8px;
}

.language-item {
    background: var(--input-bg, #0f172a);
    border: 1px solid var(--border-color, #334155);
    border-radius: 8px;
    padding: 16px;
    text-align: center;
    cursor: pointer;
    transition: all 0.2s;
}

.language-item:hover {
    background: var(--hover-bg, #1e293b);
    border-color: var(--accent-color, #3b82f6);
    transform: translateY(-2px);
}

.language-flag {
    font-size: 24px;
    margin-bottom: 8px;
}

.language-name {
    color: var(--text-primary, #f1f5f9);
    font-weight: 500;
    font-size: 14px;
}

.language-note {
    text-align: center;
    font-size: 12px;
    color: var(--text-secondary, #94a3b8);
    margin-bottom: 0;
}

/* Auth Forms */
.auth-form {
    margin-top: 20px;
    padding-top: 20px;
    border-top: 1px solid var(--border-color, #334155);
}

.auth-form h4 {
    margin: 0 0 16px 0;
    color: var(--text-primary, #f1f5f9);
}

.auth-form input {
    width: 100%;
    padding: 12px;
    margin-bottom: 12px;
    background: var(--input-bg, #0f172a);
    border: 1px solid var(--border-color, #334155);
    border-radius: 6px;
    color: var(--text-primary, #f1f5f9);
    font-size: 14px;
    box-sizing: border-box;
}

.auth-form input:focus {
    outline: none;
    border-color: var(--accent-color, #3b82f6);
}

.auth-form input::placeholder {
    color: var(--text-secondary, #94a3b8);
}

.auth-form p {
    text-align: center;
    margin-top: 16px;
    margin-bottom: 0;
}

.auth-form a {
    color: var(--accent-color, #3b82f6);
    text-decoration: none;
}

.auth-form a:hover {
    text-decoration: underline;
}

/* Guest Credentials Styling */
.guest-credentials {
    margin-top: 8px;
    padding: 8px;
    background: var(--input-bg, #0f172a);
    border-radius: 4px;
    border: 1px solid var(--border-color, #334155);
}

.guest-id, .guest-password {
    font-size: 11px;
    color: var(--text-secondary, #94a3b8);
    font-family: monospace;
    margin: 2px 0;
}

/* Modal Footer */
.modal-footer {
    display: flex;
    gap: 12px;
    padding: 20px 24px;
    border-top: 1px solid var(--border-color, #334155);
    background: var(--card-bg, #1e293b);
    border-radius: 0 0 12px 12px;
}

/* Modal Form Styling */
.modal-body .input-group {
    margin-bottom: 16px;
}

.modal-body .input-group label {
    display: block;
    margin-bottom: 6px;
    color: var(--text-primary, #f1f5f9);
    font-weight: 500;
    font-size: 14px;
}

.modal-body .input-group input,
.modal-body .input-group select {
    width: 100%;
    padding: 12px;
    background: var(--input-bg, #0f172a);
    border: 1px solid var(--border-color, #334155);
    border-radius: 6px;
    color: var(--text-primary, #f1f5f9);
    font-size: 14px;
    box-sizing: border-box;
    transition: border-color 0.2s;
}

.modal-body .input-group input:focus,
.modal-body .input-group select:focus {
    outline: none;
    border-color: var(--accent-color, #3b82f6);
}

.modal-body .input-group input::placeholder {
    color: var(--text-secondary, #94a3b8);
}

.modal-body .input-group select {
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml;charset=US-ASCII,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 4 5'><path fill='%23cbd5e1' d='M2 0L0 2h4zm0 5L0 3h4z'/></svg>");
    background-repeat: no-repeat;
    background-position: right 12px center;
    background-size: 12px;
    padding-right: 36px;
}

.modal-body .input-group select option {
    background: var(--input-bg, #0f172a);
    color: var(--text-primary, #f1f5f9);
}

/* Close button alternative class name support */
.modal-close {
    background: none;
    border: none;
    font-size: 24px;
    color: var(--text-secondary, #cbd5e1);
    cursor: pointer;
    padding: 4px;
    border-radius: 4px;
    transition: all 0.2s;
}

.modal-close:hover {
    background: var(--hover-bg, #475569);
    color: var(--text-primary, #f1f5f9);
}

/* Mobile Responsiveness */
@media (max-width: 768px) {
    .modal-content {
        width: 95%;
        margin: 20px;
    }
    
    .modal-buttons {
        flex-direction: column;
    }
    
    .modal-footer {
        flex-direction: column;
    }
    
    .language-grid {
        grid-template-columns: repeat(auto-fit, minmax(100px, 1fr));
        gap: 12px;
    }
    
    .modal-header, .modal-body {
        padding: 16px;
    }
    
    .modal-footer {
        padding: 16px;
    }
}

/* Grammar Exercise Modal Styles */
.grammar-topics-modal {
    max-width: 800px;
    width: 90%;
}

.grammar-session-modal {
    max-width: 700px;
    width: 95%;
}

.grammar-results-modal {
    max-width: 600px;
    width: 90%;
}

.exercise-settings {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin-bottom: 25px;
    padding: 20px;
    background: var(--card-bg, #1e293b);
    border-radius: 10px;
    border: 1px solid var(--border-color, #334155);
}

.setting-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.setting-group label {
    font-weight: 600;
    color: var(--text-primary, #f1f5f9);
    font-size: 0.9rem;
}

.setting-group select {
    padding: 10px;
    border: 1px solid var(--border-color, #334155);
    border-radius: 6px;
    background: var(--input-bg, #0f172a);
    color: var(--text-primary, #f1f5f9);
    font-size: 0.9rem;
}

.topics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 15px;
}

.topic-card {
    background: var(--card-bg, #1e293b);
    border: 1px solid var(--border-color, #334155);
    border-radius: 12px;
    padding: 20px;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
}

.topic-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3);
    border-color: var(--accent-color, #3b82f6);
}

.topic-card.disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.topic-card.disabled:hover {
    transform: none;
    box-shadow: none;
    border-color: var(--border-color, #334155);
}

.topic-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 10px;
}

.topic-name {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-primary, #f1f5f9);
}

.topic-difficulty {
    font-size: 0.8rem;
    color: var(--text-secondary, #cbd5e1);
    background: var(--secondary-bg, #374151);
    padding: 4px 8px;
    border-radius: 12px;
}

.topic-description {
    font-size: 0.9rem;
    color: var(--text-secondary, #cbd5e1);
    margin-bottom: 15px;
    line-height: 1.4;
}

.topic-progress {
    margin-bottom: 15px;
}

.progress-bar {
    height: 6px;
    background: var(--border-color, #334155);
    border-radius: 3px;
    overflow: hidden;
    margin-bottom: 8px;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--accent-color, #3b82f6), var(--success-color, #10b981));
    border-radius: 3px;
    transition: width 0.3s ease;
}

.progress-text {
    font-size: 0.8rem;
    color: var(--text-secondary, #cbd5e1);
    display: flex;
    justify-content: space-between;
}

.topic-stats {
    display: flex;
    justify-content: space-between;
    font-size: 0.85rem;
    color: var(--text-secondary, #cbd5e1);
}

.exercise-progress .progress-info {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 10px;
    font-weight: 600;
    color: var(--text-primary, #f1f5f9);
}

.exercise-content {
    background: var(--card-bg, #1e293b);
    border: 1px solid var(--border-color, #334155);
    border-radius: 12px;
    padding: 25px;
    margin-bottom: 20px;
    min-height: 200px;
}

.exercise-question {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--text-primary, #f1f5f9);
    margin-bottom: 20px;
    line-height: 1.5;
}

.exercise-options {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.option-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 15px;
    background: var(--input-bg, #0f172a);
    border: 2px solid var(--border-color, #334155);
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.option-item:hover {
    border-color: var(--accent-color, #3b82f6);
    background: var(--hover-bg, #475569);
}

.option-item.selected {
    border-color: var(--accent-color, #3b82f6);
    background: var(--secondary-bg, #374151);
}

.option-item input[type="radio"] {
    margin: 0;
    cursor: pointer;
}

.option-text {
    font-size: 1rem;
    color: var(--text-primary, #f1f5f9);
    cursor: pointer;
}

.fill-blank-input {
    display: inline-block;
    padding: 8px 15px;
    border: 2px solid var(--border-color, #334155);
    border-radius: 6px;
    font-size: 1rem;
    min-width: 120px;
    text-align: center;
    background: var(--input-bg, #0f172a);
    color: var(--text-primary, #f1f5f9);
}

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

.exercise-actions {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

.exercise-feedback {
    background: var(--card-bg, #1e293b);
    border-radius: 8px;
    padding: 20px;
    margin-bottom: 20px;
    border-left: 4px solid var(--success-color, #10b981);
}

.exercise-feedback.incorrect {
    border-left-color: var(--danger-color, #ef4444);
}

.feedback-result {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 10px;
}

.feedback-result.correct {
    color: var(--success-color, #10b981);
}

.feedback-result.incorrect {
    color: var(--danger-color, #ef4444);
}

.feedback-explanation {
    font-size: 0.95rem;
    color: var(--text-secondary, #cbd5e1);
    line-height: 1.5;
}

.previous-answers {
    background: var(--card-bg, #1e293b);
    border: 1px solid var(--border-color, #334155);
    border-radius: 8px;
    padding: 15px;
}

.answers-label {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-secondary, #cbd5e1);
    margin-bottom: 10px;
}

.answers-list {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.answer-indicator {
    width: 35px;
    height: 35px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.8rem;
    font-weight: 600;
    color: white;
}

.answer-indicator.correct {
    background: var(--success-color, #10b981);
}

.answer-indicator.incorrect {
    background: var(--danger-color, #ef4444);
}

.answer-indicator.current {
    background: var(--accent-color, #3b82f6);
    border: 3px solid var(--accent-hover, #2563eb);
}

.results-summary {
    text-align: center;
    background: var(--card-bg, #1e293b);
    border-radius: 12px;
    padding: 25px;
    margin-bottom: 25px;
    border: 1px solid var(--border-color, #334155);
}

.results-score {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--accent-color, #3b82f6);
    margin-bottom: 10px;
}

.results-details {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 15px;
    margin-top: 20px;
}

.result-stat {
    text-align: center;
}

.stat-value {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-primary, #f1f5f9);
    margin-bottom: 5px;
}

.stat-label {
    font-size: 0.9rem;
    color: var(--text-secondary, #cbd5e1);
}

.mistakes-review {
    margin-bottom: 25px;
}

.mistakes-title {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--text-primary, #f1f5f9);
    margin-bottom: 15px;
}

.mistake-item {
    background: var(--card-bg, #1e293b);
    border: 1px solid var(--danger-color, #ef4444);
    border-radius: 8px;
    padding: 15px;
    margin-bottom: 10px;
}

.mistake-question {
    font-size: 0.9rem;
    color: var(--text-primary, #f1f5f9);
    margin-bottom: 8px;
}

.mistake-answers {
    display: flex;
    gap: 15px;
    margin-bottom: 8px;
    font-size: 0.85rem;
}

.your-answer {
    color: var(--danger-color, #ef4444);
}

.correct-answer {
    color: var(--success-color, #10b981);
}

.mistake-explanation {
    font-size: 0.85rem;
    color: var(--text-secondary, #cbd5e1);
    font-style: italic;
}

.results-actions {
    display: flex;
    gap: 15px;
    justify-content: center;
    flex-wrap: wrap;
}

.loading-spinner {
    text-align: center;
    padding: 40px;
    color: var(--text-secondary, #cbd5e1);
    font-style: italic;
}

/* Grammar Modal Responsive Design */
@media (max-width: 768px) {
    .exercise-settings {
        grid-template-columns: 1fr;
        gap: 15px;
    }
    
    .topics-grid {
        grid-template-columns: 1fr;
    }
    
    .grammar-session-modal {
        width: 98%;
    }
    
    .results-details {
        grid-template-columns: 1fr;
        gap: 10px;
    }
    
    .results-actions {
        flex-direction: column;
    }
    
    .exercise-actions {
        flex-direction: column;
        gap: 15px;
    }
}