.writing-exercise-container {
    max-width: 800px;
    margin: 0 auto;
    padding: 20px;
}

.writing-exercise-header {
    margin-bottom: 24px;
    padding-bottom: 16px;
    border-bottom: 2px solid #e5e7eb;
}

.writing-exercise-title {
    font-size: 24px;
    font-weight: 700;
    color: #1f2937;
    margin: 0 0 12px 0;
}

.writing-exercise-topic {
    font-size: 16px;
    color: #4b5563;
    padding: 12px;
    background: #f3f4f6;
    border-left: 4px solid #2563eb;
    border-radius: 4px;
    margin-top: 8px;
}

.writing-exercise-image {
    margin-bottom: 24px;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.writing-exercise-image img {
    max-width: 100%;
    height: auto;
    display: block;
}

.writing-exercise-instructions {
    background: #fffbeb;
    border: 1px solid #fde047;
    border-radius: 8px;
    padding: 16px;
    margin-bottom: 24px;
    font-size: 15px;
    line-height: 1.6;
    color: #854d0e;
}

.writing-exercise-instructions strong {
    color: #78350f;
}

.writing-exercise-content {
    background: #fff;
    border: 1px solid #e5e7eb;
    border-radius: 8px;
    padding: 20px;
}

.writing-input-section {
    margin-bottom: 20px;
}

.writing-input-section label {
    display: block;
    font-size: 14px;
    font-weight: 600;
    color: #374151;
    margin-bottom: 8px;
}

.writing-textarea {
    width: 100%;
    min-height: 300px;
    padding: 12px;
    border: 1px solid #d1d5db;
    border-radius: 6px;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    font-size: 15px;
    line-height: 1.6;
    resize: vertical;
    box-sizing: border-box;
    transition: border-color 0.2s, box-shadow 0.2s;
}

.writing-textarea:focus {
    outline: none;
    border-color: #2563eb;
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.writing-textarea:disabled {
    background-color: #f3f4f6;
    color: #9ca3af;
    cursor: not-allowed;
}

.writing-word-counter {
    margin-top: 12px;
    padding: 12px;
    background: #f9fafb;
    border: 1px solid #e5e7eb;
    border-radius: 6px;
    font-size: 13px;
    transition: all 0.2s;
}

.writing-word-counter[data-writing-word-counter-box].is-warning {
    background: #fffbeb;
    border-color: #fcd34d;
}

.writing-word-counter[data-writing-word-counter-box].is-critical {
    background: #fee2e2;
    border-color: #fecaca;
}

.writing-word-counter[data-writing-word-counter-box].is-complete {
    background: #dcfce7;
    border-color: #86efac;
}

.writing-word-counter .word-count {
    font-weight: 700;
}

.writing-word-counter .words-remaining {
    font-weight: 700;
}

.writing-submit-section {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.writing-submit-btn {
    padding: 12px 24px;
    background: #2563eb;
    color: white;
    border: none;
    border-radius: 6px;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.2s;
}

.writing-submit-btn:hover:not(:disabled) {
    background: #1d4ed8;
}

.writing-submit-btn:disabled,
.writing-submit-btn.is-disabled {
    background: #d1d5db;
    color: #9ca3af;
    cursor: not-allowed;
}

.writing-validation-message {
    font-size: 14px;
    padding: 12px;
    border-radius: 6px;
    display: none;
}

.writing-validation-message.is-error {
    display: block;
    background: #fee2e2;
    color: #991b1b;
    border: 1px solid #fecaca;
}

.writing-validation-message.is-success {
    display: block;
    background: #dcfce7;
    color: #166534;
    border: 1px solid #bbf7d0;
}

.writing-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
}

.writing-overlay-inner {
    background: white;
    border-radius: 8px;
    padding: 32px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 16px;
    box-shadow: 0 20px 48px rgba(0, 0, 0, 0.2);
}

.writing-spinner {
    width: 40px;
    height: 40px;
    border: 4px solid #e5e7eb;
    border-top-color: #2563eb;
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
}

.writing-overlay-text {
    font-size: 16px;
    font-weight: 500;
    color: #374151;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

/* Timer Styling */
.writing-timer-box {
    background: linear-gradient(135deg, #fef3c7 0%, #fde68a 100%);
    border: 2px solid #f59e0b;
    border-radius: 12px;
    padding: 16px;
    box-shadow: 0 4px 12px rgba(245, 158, 11, 0.15);
}

.writing-timer-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 12px;
}

.writing-timer-display {
    font-size: 32px;
    font-weight: 900;
    color: #92400e;
    font-family: 'Courier New', monospace;
    letter-spacing: 2px;
}

.writing-timer-display.writing-timer-warning {
    color: #dc2626;
    animation: pulse 1s infinite;
}

.writing-timer-display.writing-timer-expired {
    color: #991b1b;
    animation: pulse 0.5s infinite;
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.7;
    }
}

.writing-timer-prompt {
    background: #fef3c7;
    border: 1px solid #fcd34d;
    border-radius: 8px;
    padding: 16px;
    margin-bottom: 20px;
}

.writing-timer-btn {
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-weight: 600;
    transition: all 0.2s;
    font-size: 13px;
}

.writing-timer-btn-primary {
    background: #2563eb;
    color: white;
}

.writing-timer-btn-primary:hover {
    background: #1d4ed8;
}

.writing-timer-btn-secondary {
    background: #d1d5db;
    color: #374151;
}

.writing-timer-btn-secondary:hover {
    background: #b3b8c5;
}

.writing-timer-btn-danger {
    background: #ef4444;
    color: white;
}

.writing-timer-btn-danger:hover {
    background: #dc2626;
}

.writing-timer-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* Collapsible Instructions Section */
.writing-exercise-collapsible {
    margin-bottom: 24px;
    border: 1px solid #e5e7eb;
    border-radius: 8px;
    overflow: hidden;
}

.writing-collapsible-btn {
    width: 100%;
    padding: 16px;
    background: #f9fafb;
    border: none;
    border-bottom: 1px solid #e5e7eb;
    font-size: 15px;
    font-weight: 600;
    color: #1f2937;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 12px;
    transition: background 0.2s;
}

.writing-collapsible-btn:hover {
    background: #f3f4f6;
}

.collapsible-icon {
    display: inline-block;
    font-size: 12px;
    font-weight: bold;
    min-width: 12px;
    transition: transform 0.2s;
}

.writing-collapsible-content {
    background: #fffbeb;
    border-top: 1px solid #fde047;
    padding: 20px;
    animation: slideDown 0.3s ease-out;
}

.writing-collapsible-content[hidden] {
    display: none;
}

@keyframes slideDown {
    from {
        opacity: 0;
        max-height: 0;
    }
    to {
        opacity: 1;
        max-height: 1000px;
    }
}

.reading-time-hint {
    white-space: normal;
}

/* Responsive adjustments */
@media (max-width: 640px) {
    .writing-exercise-container {
        padding: 12px;
    }

    .writing-exercise-title {
        font-size: 20px;
    }

    .writing-textarea {
        min-height: 250px;
        font-size: 14px;
    }

    .writing-submit-btn {
        padding: 10px 16px;
        font-size: 14px;
    }

    .writing-timer-display {
        font-size: 24px;
        letter-spacing: 1px;
    }

    .writing-timer-header {
        flex-wrap: wrap;
        gap: 8px;
    }

    .writing-timer-box {
        padding: 12px;
    }

    .writing-collapsible-btn {
        padding: 12px;
        font-size: 14px;
        flex-wrap: wrap;
    }

    .reading-time-hint {
        margin-left: 0;
        margin-top: 4px;
        order: 3;
        flex-basis: 100%;
        text-align: left;
    }
}