/* ============================================================================
 * UTILITY COMPONENT STYLES
 * Common utilities, error boundaries, loading states, and helper components
 * ============================================================================ */

/* ========================================
 * ERROR BOUNDARY STYLES
 * Error handling and fallback components
 * ======================================== */

.error-boundary {
    width: 100vw;
    height: 100vh;
    background: #ffebee;
    color: #c62828;
    padding: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    font-family: Arial, sans-serif;
}

.error-boundary details {
    margin-top: 20px;
    max-width: 80%;
}

.error-boundary pre {
    font-size: 12px;
    margin-top: 10px;
    overflow: auto;
    background-color: #f5f5f5;
    padding: 10px;
    border-radius: 4px;
}

.dependency-error {
    width: 100vw;
    height: 100vh;
    background: #fff3e0;
    color: #e65100;
    padding: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
}

.element-error {
    color: red;
    padding: 10px;
    border: 1px solid red;
}

.element-render-error {
    color: red;
    font-size: 12px;
    padding: 5px;
}

.element-error-boundary {
    padding: 10px;
    border: 2px solid #ff6b6b;
    border-radius: 8px;
    background-color: rgba(255, 107, 107, 0.1);
    color: #d63031;
    font-size: 14px;
    text-align: center;
}

.element-error-boundary button {
    margin-top: 8px;
    padding: 4px 8px;
    background-color: #ff6b6b;
    color: white;
    border: none;
    border-radius: 4px;
    cursor: pointer;
}

/* ========================================
 * LOADING AND SUSPENSE STYLES
 * Loading states and fallback components
 * ======================================== */

.element-loading-fallback {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    font-size: 14px;
    color: #666;
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: 8px;
    border: 1px dashed #ccc;
}

.element-loading-fallback .spinner {
    width: 16px;
    height: 16px;
    border: 2px solid #f3f3f3;
    border-top: 2px solid #1976d2;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-right: 8px;
}

.element-suspense-fallback {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    font-size: 14px;
    color: #666;
    background-color: rgba(255, 255, 255, 0.05);
    border-radius: 8px;
    border: 1px dashed rgba(255, 255, 255, 0.2);
}

.element-suspense-fallback .spinner {
    width: 16px;
    height: 16px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-top: 2px solid #1976d2;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-right: 8px;
}

.table-loading-fallback {
    padding: 20px;
    text-align: center;
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: 8px;
    border: 2px dashed rgba(255, 255, 255, 0.3);
}

/* ========================================
 * FEEDBACK AND TEXT COMPONENTS
 * User feedback and text display components
 * ======================================== */

.feedback-text-component {
    position: absolute;
    left: 37.5%;
    top: 34.38%;
    width: 31.25%;
    height: 31.25%;
    padding: 12px;
    box-sizing: border-box;
    background-color: transparent;
    color: black;
    border: none;
    font-size: 16px;
    font-weight: bold;
    text-align: center;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 8px;
    z-index: var(--z-content, 1000);
    transition: all 0.3s ease;
    transform: scale(1);
    opacity: 1;
}

/* ========================================
 * TILE AND ANIMATION COMPONENTS
 * Interactive tiles and animation effects
 * ======================================== */

.tile-content {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    word-wrap: break-word;
    overflow: hidden;
}

.tile-content.glow {
    animation: glow 2s ease-in-out infinite alternate;
    box-shadow: 0 0 10px currentColor;
}

.tile-content.pulsate {
    animation: pulsate 1.5s ease-in-out infinite;
}

.tile-content.pulsate-glow {
    animation: pulsateGlow 2s ease-in-out infinite;
}

/* ========================================
 * UTILITY CLASSES
 * Common utility classes for JavaScript interactions
 * ======================================== */

.hidden {
    display: none !important;
}

.visible {
    display: flex !important;
    visibility: visible !important;
}

.disabled {
    opacity: 0.5;
    cursor: not-allowed;
    pointer-events: none;
}

.pulsate {
    animation: pulsate 1.5s ease-in-out infinite;
}

.sr-only {
    position: absolute !important;
    width: 1px !important;
    height: 1px !important;
    padding: 0 !important;
    margin: -1px !important;
    overflow: hidden !important;
    clip: rect(0, 0, 0, 0) !important;
    white-space: nowrap !important;
    border: 0 !important;
}

/* ========================================
 * TEXT AREA STYLING CLASSES
 * Universal text area styles for all pages
 * ======================================== */

.text-area,
.feedback-text-area,
textarea.feedback,
.hint-text,
.instruction-text {
    padding: 15px;
    border-radius: var(--border-radius-md);
    font-size: 18px;
    font-weight: bold;
    text-align: center;
    transition: all var(--transition-normal);
    border: 2px solid;
    box-sizing: border-box;
    line-height: 1.4;
}

.text-area-incorrect,
.feedback-text-area.incorrect,
textarea.feedback.incorrect,
.feedback-incorrect {
    color: var(--textarea-incorrect-color);
    background-color: var(--textarea-incorrect-bg);
    border-color: var(--textarea-incorrect-border);
    border-style: dashed;
}

.text-area-correct,
.feedback-text-area.correct,
textarea.feedback.correct,
.feedback-correct {
    color: var(--textarea-correct-color);
    background-color: var(--textarea-correct-bg);
    border-color: var(--textarea-correct-border);
    border-style: dashed;
}

.text-area-hint,
.feedback-text-area.hint,
textarea.feedback.hint,
.feedback-hint,
.hint-text {
    color: var(--textarea-hint-color);
    background-color: var(--textarea-hint-bg);
    border-color: var(--textarea-hint-border);
}

.feedback-container {
    width: 100%;
    margin: 10px 0;
}

.feedback-container .text-area {
    width: 100%;
    margin: 0;
}

/* ========================================
 * RESPONSIVE UTILITIES
 * Responsive utility classes
 * ======================================== */

/* Media queries removed - using coordinate and gc system for responsiveness */