/**
 * Main CSS for Fibonnaci.com Theme
 * Comprehensive styling for all pages, tools, and components
 * 
 * @package FibonnaciCom
 */

/* =============================================================================
   TOOL INTERFACE STYLING
   ============================================================================= */

/* Utility Classes for Inline Style Replacement */
.result-value-large {
    font-size: 24px;
    color: var(--accent-color);
    font-weight: 600;
}

.monospace {
    font-family: 'Courier New', Courier, monospace;
    font-size: 14px;
    line-height: 1.4;
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 10px;
}

.data-table th {
    background: #e0e0e0;
    padding: 8px;
    text-align: left;
    font-weight: 600;
    border-bottom: 2px solid var(--border-color);
}

.data-table td {
    padding: 8px;
    border-bottom: 1px solid #ddd;
}

.grid-layout {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 16px;
    margin-top: 10px;
}

.grid-layout-2 {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 16px;
}

.grid-layout-responsive {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 16px;
}

/* Margin and Padding Utilities */
.margin-y-sm {
    margin: 10px 0;
}

.margin-y-md {
    margin: 16px 0;
}

.margin-y-lg {
    margin: 24px 0;
}

.padding-sm {
    padding: 8px;
}

.padding-md {
    padding: 15px;
}

.padding-lg {
    padding: 24px;
}

/* Text Utilities */
.text-center {
    text-align: center;
}

.text-left {
    text-align: left;
}

.text-right {
    text-align: right;
}

.font-size-sm {
    font-size: 12px;
}

.font-size-md {
    font-size: 14px;
}

.font-size-lg {
    font-size: 16px;
}

.font-weight-bold {
    font-weight: bold;
}

/* Highlight Classes */
.highlight-yellow {
    background: #FFD700;
    font-weight: bold;
    padding: 2px 6px;
    border-radius: 3px;
}

.highlight-green {
    background: #D4F3D0;
    padding: 2px 6px;
    border-radius: 3px;
}

/* Special Layout Classes */
.pattern-analysis {
    margin-top: 20px;
    padding: 15px;
    background: #fff3cd;
    border-radius: 8px;
}

.flex-center {
    display: flex;
    align-items: center;
    gap: 16px;
    margin: 12px 0;
}

.color-demo-box {
    width: 60px;
    height: 60px;
    border: 2px solid #333;
    border-radius: 8px;
}

/* Column Layouts */
.columns-2 {
    columns: 2;
    column-gap: 30px;
    margin: 10px 0;
    padding-left: 20px;
}

/* Tool Forms - Consistent across all tools */
.tool-form {
    background: var(--bg-white);
    padding: var(--spacing-xl);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-color);
    margin-bottom: var(--spacing-xl);
}

.form-group {
    margin-bottom: var(--spacing-lg);
}

.form-group label {
    display: block;
    font-weight: 500;
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary);
    font-size: var(--font-size-sm);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: var(--spacing-md);
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius);
    font-size: var(--font-size-base);
    font-family: var(--font-primary);
    transition: var(--transition-fast);
    background: var(--bg-white);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(46, 125, 125, 0.1);
    outline: none;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--text-muted);
    font-style: italic;
}

.form-group small {
    display: block;
    margin-top: var(--spacing-sm);
    color: var(--text-secondary);
    font-size: var(--font-size-xs);
    line-height: 1.4;
}

/* Button Enhancements */
.btn-large {
    padding: var(--spacing-lg) var(--spacing-xl);
    font-size: var(--font-size-lg);
    font-weight: 600;
    min-width: 200px;
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn:active {
    transform: translateY(0);
}

/* Calculation Field Groups */
.calculation-fields {
    padding: var(--spacing-lg);
    background: var(--bg-light);
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
    margin: var(--spacing-lg) 0;
}

/* Grid Layouts for Forms */
.form-grid-2 {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-md);
}

.form-grid-3 {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: var(--spacing-md);
}

@media (max-width: 768px) {
    .form-grid-2,
    .form-grid-3 {
        grid-template-columns: 1fr;
    }
}

/* =============================================================================
   TOOL RESULTS STYLING
   ============================================================================= */

.tool-results {
    background: var(--bg-white);
    padding: var(--spacing-xl);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-color);
    margin-top: var(--spacing-xl);
    animation: fadeInUp 0.5s ease-out;
}

.tool-results h3 {
    color: var(--text-primary);
    font-size: var(--font-size-2xl);
    margin-bottom: var(--spacing-xl);
    padding-bottom: var(--spacing-md);
    border-bottom: 2px solid var(--border-color);
}

.result-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-md) 0;
    border-bottom: 1px solid var(--bg-gray);
}

.result-item:last-child {
    border-bottom: none;
}

.result-label {
    font-weight: 500;
    color: var(--text-primary);
    flex: 1;
    font-size: var(--font-size-sm);
}

.result-value {
    font-weight: 600;
    color: var(--success-color);
    text-align: right;
    font-family: var(--font-mono);
    font-size: var(--font-size-base);
}

.result-value.large {
    font-size: var(--font-size-2xl);
    color: var(--primary-color);
}

@media (max-width: 640px) {
    .result-item {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-xs);
    }
    
    .result-value {
        text-align: left;
        width: 100%;
    }
}

/* =============================================================================
   INFORMATION BOXES & SECTIONS
   ============================================================================= */

.info-box {
    padding: var(--spacing-lg);
    border-radius: var(--border-radius);
    margin: var(--spacing-lg) 0;
    border-left: 4px solid;
}

.info-box.blue {
    background: #f0f8ff;
    border-left-color: var(--primary-color);
}

.info-box.green {
    background: #f0fff0;
    border-left-color: var(--success-color);
}

.info-box.yellow {
    background: #fffaf0;
    border-left-color: var(--accent-color);
}

.info-box.gray {
    background: var(--bg-light);
    border-left-color: var(--text-muted);
}

.info-box h4 {
    margin: 0 0 var(--spacing-md) 0;
    color: var(--text-primary);
    font-size: var(--font-size-lg);
}

.info-box p {
    margin: var(--spacing-sm) 0;
    color: var(--text-secondary);
    line-height: 1.6;
}

.info-box ul {
    margin: var(--spacing-sm) 0;
    padding-left: var(--spacing-lg);
}

.info-box li {
    margin: var(--spacing-xs) 0;
    color: var(--text-secondary);
}

/* Step-by-Step Calculations */
.steps-container {
    background: var(--bg-light);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: var(--spacing-lg);
    margin: var(--spacing-lg) 0;
}

.steps-container h4 {
    margin: 0 0 var(--spacing-md) 0;
    color: var(--text-primary);
}

.calculation-step {
    font-family: var(--font-mono);
    font-size: var(--font-size-sm);
    line-height: 1.6;
    margin: var(--spacing-sm) 0;
    padding: var(--spacing-sm);
    background: var(--bg-white);
    border-radius: var(--border-radius-sm);
    color: var(--text-primary);
}

/* =============================================================================
   APPLICATION GRIDS & LAYOUTS
   ============================================================================= */

.applications-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-lg);
    margin: var(--spacing-lg) 0;
}

.application-item h5 {
    color: var(--primary-color);
    margin-bottom: var(--spacing-sm);
    font-size: var(--font-size-base);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.application-item ul {
    font-size: var(--font-size-sm);
    margin: 0;
    padding-left: var(--spacing-lg);
    list-style-type: disc;
}

.application-item li {
    margin: var(--spacing-xs) 0;
    color: var(--text-secondary);
    line-height: 1.4;
}

/* =============================================================================
   TABLES
   ============================================================================= */

.data-table {
    width: 100%;
    border-collapse: collapse;
    margin: var(--spacing-lg) 0;
    background: var(--bg-white);
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

.data-table thead {
    background: var(--bg-gray);
}

.data-table th,
.data-table td {
    padding: var(--spacing-md);
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.data-table th {
    font-weight: 600;
    color: var(--text-primary);
    font-size: var(--font-size-sm);
}

.data-table td {
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
}

.data-table tr:hover {
    background: var(--bg-light);
}

.data-table .highlight {
    background: var(--accent-color);
    color: var(--text-dark);
    font-weight: bold;
}

@media (max-width: 768px) {
    .data-table {
        font-size: var(--font-size-xs);
    }
    
    .data-table th,
    .data-table td {
        padding: var(--spacing-sm);
    }
}

/* =============================================================================
   EXAMPLES & QUICK REFERENCES
   ============================================================================= */

.examples-section {
    background: var(--bg-light);
    border-radius: var(--border-radius);
    padding: var(--spacing-lg);
    margin: var(--spacing-lg) 0;
}

.examples-section h4 {
    margin: 0 0 var(--spacing-md) 0;
    color: var(--text-primary);
}

.examples-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-md);
    font-size: var(--font-size-sm);
}

.examples-grid div {
    padding: var(--spacing-sm);
    background: var(--bg-white);
    border-radius: var(--border-radius-sm);
    border: 1px solid var(--border-color);
}

.examples-grid strong {
    color: var(--primary-color);
}

/* =============================================================================
   ALERT SYSTEM
   ============================================================================= */

.alert {
    padding: var(--spacing-lg);
    border-radius: var(--border-radius);
    margin: var(--spacing-lg) 0;
    border-left: 4px solid;
    font-size: var(--font-size-sm);
    line-height: 1.6;
}

.alert-error {
    background-color: #fee;
    border-left-color: var(--danger-color);
    color: #c00;
}

.alert-success {
    background-color: #dfd;
    border-left-color: var(--success-color);
    color: #060;
}

.alert-warning {
    background-color: #fef5e7;
    border-left-color: var(--warning-color);
    color: #8b4513;
}

.alert-info {
    background-color: #e8f4fd;
    border-left-color: var(--primary-color);
    color: #004080;
}

/* =============================================================================
   MULTIPLES & SEQUENCES DISPLAY
   ============================================================================= */

.multiples-display {
    font-family: var(--font-mono);
    margin: var(--spacing-sm) 0;
}

.multiple-item {
    display: inline-block;
    margin-right: var(--spacing-sm);
    margin-bottom: var(--spacing-xs);
    padding: 2px 6px;
    border-radius: var(--border-radius-sm);
    background: var(--bg-light);
    border: 1px solid var(--border-color);
    font-size: var(--font-size-sm);
}

.multiple-item.highlight {
    background: var(--accent-color);
    border-color: var(--warning-color);
    font-weight: bold;
    color: var(--text-dark);
}

/* =============================================================================
   COLOR DISPLAY & VISUAL ELEMENTS
   ============================================================================= */

.color-display {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin: var(--spacing-md) 0;
}

.color-swatch {
    width: 60px;
    height: 60px;
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-sm);
}

.color-info {
    flex: 1;
}

.color-info p {
    margin: 4px 0;
    font-family: var(--font-mono);
    font-size: var(--font-size-sm);
}

/* Clock Visualization */
.clock-display {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
    margin: var(--spacing-lg) 0;
}

.clock-face {
    width: 80px;
    height: 80px;
    border: 3px solid var(--primary-color);
    border-radius: 50%;
    position: relative;
    background: var(--bg-light);
}

.clock-hand {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 2px;
    height: 30px;
    background: var(--text-dark);
    transform-origin: bottom;
    transform: translate(-50%, -100%);
}

.clock-numbers {
    position: absolute;
    font-size: var(--font-size-xs);
    font-weight: bold;
    color: var(--text-primary);
}

.clock-12 { top: 10px; left: 50%; transform: translateX(-50%); }
.clock-3 { right: 10px; top: 50%; transform: translateY(-50%); }
.clock-6 { bottom: 10px; left: 50%; transform: translateX(-50%); }
.clock-9 { left: 10px; top: 50%; transform: translateY(-50%); }

.clock-info {
    flex: 1;
}

.clock-info p {
    margin: 0;
    font-size: var(--font-size-lg);
    font-weight: 500;
}

.clock-info small {
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
}

/* =============================================================================
   RESPONSIVE UTILITIES
   ============================================================================= */

.mobile-only {
    display: none;
}

.desktop-only {
    display: block;
}

@media (max-width: 768px) {
    .mobile-only {
        display: block;
    }
    
    .desktop-only {
        display: none;
    }
    
    .tool-form {
        padding: var(--spacing-lg);
    }
    
    .tool-results {
        padding: var(--spacing-lg);
    }
    
    .info-box {
        padding: var(--spacing-md);
    }
    
    .applications-grid {
        grid-template-columns: 1fr;
    }
    
    .examples-grid {
        grid-template-columns: 1fr;
    }
    
    .color-display {
        flex-direction: column;
        text-align: center;
    }
    
    .clock-display {
        flex-direction: column;
        text-align: center;
    }
}

/* =============================================================================
   ANIMATIONS & TRANSITIONS
   ============================================================================= */

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.05);
    }
}

.fade-in-up {
    animation: fadeInUp 0.5s ease-out;
}

.pulse {
    animation: pulse 2s infinite;
}

/* =============================================================================
   LOADING STATES
   ============================================================================= */

.loading {
    opacity: 0.6;
    pointer-events: none;
    position: relative;
}

.loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 20px;
    height: 20px;
    margin: -10px 0 0 -10px;
    border: 2px solid var(--primary-color);
    border-top-color: transparent;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

/* =============================================================================
   TOOLTIP SYSTEM
   ============================================================================= */

.tooltip {
    position: relative;
    cursor: help;
    border-bottom: 1px dotted var(--text-muted);
}

.tooltip::after {
    content: attr(data-tooltip);
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%);
    background: var(--text-dark);
    color: var(--text-light);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--border-radius-sm);
    font-size: var(--font-size-xs);
    white-space: nowrap;
    opacity: 0;
    pointer-events: none;
    transition: var(--transition-fast);
    z-index: 1000;
    margin-bottom: var(--spacing-sm);
}

.tooltip:hover::after {
    opacity: 1;
}

/* =============================================================================
   PRINT STYLES
   ============================================================================= */

@media print {
    .tool-form,
    .no-print {
        display: none !important;
    }
    
    .tool-results {
        break-inside: avoid;
        box-shadow: none;
        border: 1px solid #ccc;
    }
    
    body {
        font-size: 12pt;
        line-height: 1.4;
        color: #000;
    }
    
    h1, h2, h3, h4, h5, h6 {
        color: #000 !important;
        page-break-after: avoid;
    }
    
    .info-box {
        border: 1px solid #ccc;
        background: none !important;
    }
}

/* =============================================================================
   ACCESSIBILITY ENHANCEMENTS
   ============================================================================= */

/* High contrast mode support */
@media (prefers-contrast: high) {
    :root {
        --primary-color: #000080;
        --secondary-color: #000040;
        --text-primary: #000000;
        --text-secondary: #333333;
        --border-color: #666666;
        --bg-light: #f5f5f5;
    }
}

/* Reduced motion support */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Focus improvements */
.btn:focus,
input:focus,
select:focus,
textarea:focus {
    outline: 3px solid var(--accent-color);
    outline-offset: 2px;
}

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

/* =============================================================================
   UTILITY CLASSES
   ============================================================================= */

.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.mb-0 { margin-bottom: 0; }
.mb-sm { margin-bottom: var(--spacing-sm); }
.mb-md { margin-bottom: var(--spacing-md); }
.mb-lg { margin-bottom: var(--spacing-lg); }
.mb-xl { margin-bottom: var(--spacing-xl); }

.mt-0 { margin-top: 0; }
.mt-sm { margin-top: var(--spacing-sm); }
.mt-md { margin-top: var(--spacing-md); }
.mt-lg { margin-top: var(--spacing-lg); }
.mt-xl { margin-top: var(--spacing-xl); }

.font-mono { font-family: var(--font-mono); }
.font-bold { font-weight: 600; }
.font-normal { font-weight: 400; }

.text-primary { color: var(--text-primary); }
.text-secondary { color: var(--text-secondary); }
.text-muted { color: var(--text-muted); }
.text-success { color: var(--success-color); }
.text-warning { color: var(--warning-color); }
.text-danger { color: var(--danger-color); }