/* CWE Periodic Table - Professional Styling */
:root {
    /* Color palette */
    --primary-blue: #007ACC;
    --primary-blue-dark: #005a99;
    --jki-green: #6ABF5D;
    --background: #f8f9fa;
    --card-background: #ffffff;
    --text-primary: #2c3e50;
    --text-secondary: #6c757d;
    --text-muted: #8e8e93;
    --border-light: #e9ecef;
    --border-medium: #dee2e6;
    --shadow-light: 0 2px 4px rgba(0,0,0,0.1);
    --shadow-medium: 0 4px 12px rgba(0,0,0,0.15);
    --shadow-heavy: 0 8px 25px rgba(0,0,0,0.2);
    --mitre-grey: #666;
    
    /* Family colors */
    --webserver-attacks: #e74c3c;
    --authentication-authorization: #f39c12;
    --data-protection: #9b59b6;
    --command-injection: #e67e22;
    --execution-stability: #3498db;
    --memory-handling: #1abc9c;
    --external-data: #2ecc71;
    
    /* Typography */
    --font-family: 'Segoe UI', -apple-system, BlinkMacSystemFont, 'Roboto', 'Helvetica Neue', sans-serif;
    --font-size-small: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.5rem;
    --font-size-xxl: 2rem;
    
    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-xxl: 3rem;
}

/* Reset and base styles */
*, *::before, *::after {
    box-sizing: border-box;
}

body {
    margin: 0;
    padding: 0;
    font-family: var(--font-family);
    background: var(--background);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

/* Header */
.header {
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--primary-blue-dark) 100%);
    color: white;
    padding: var(--spacing-md) var(--spacing-lg);
    box-shadow: var(--shadow-medium);
}

.header-content {
    max-width: 1200px;
    margin: 0 auto;
}

.jki-branding {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
    flex-wrap: wrap;
}

.jki-branding h1 {
    font-size: var(--font-size-xl);
    font-weight: 600;
    margin: 0;
}

.jki-logo-link {
    display: inline-block;
    transition: transform 0.3s ease;
}

.jki-logo-link:hover {
    transform: scale(1.05);
}

.jki-logo {
    height: 48px;
    width: auto;
}

.intro-text {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.intro-text p {
    font-size: var(--font-size-base);
    line-height: 1.6;
    margin: 0;
}

.intro-text a {
    color: #87ceeb;
    text-decoration: none;
    font-weight: 500;
}

.intro-text a:hover {
    text-decoration: underline;
}

/* Main content */
.main-content {
    max-width: 1400px;
    margin: 0 auto;
    padding: var(--spacing-lg);
}

/* Controls */
.controls {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-lg);
    justify-content: center;
    align-items: center;
    margin-bottom: var(--spacing-lg);
    padding: var(--spacing-md);
    background: var(--card-background);
    border-radius: 12px;
    box-shadow: var(--shadow-light);
}

.control-group {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.group-label {
    font-weight: 600;
    color: var(--text-secondary);
    font-size: var(--font-size-small);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.control-btn {
    background: transparent;
    border: 2px solid var(--border-medium);
    border-radius: 8px;
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: var(--font-size-small);
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
    color: var(--text-primary);
}

.control-btn:hover {
    border-color: var(--primary-blue);
    background: rgba(0, 122, 204, 0.1);
}

.control-btn[data-filter="jki"]:hover {
    border-color: var(--jki-green);
    background: rgba(106, 191, 93, 0.1);
}

.control-btn.active {
    background: var(--primary-blue);
    border-color: var(--primary-blue);
    color: white;
}

.control-btn.radio-btn.active {
    background: var(--primary-blue);
    color: white;
}

.control-btn.radio-btn.active[data-filter="jki"] {
    background: var(--jki-green);
    border-color: var(--jki-green);
    color: white;
}

.control-btn.copy-btn {
    background: var(--jki-green);
    border-color: var(--jki-green);
    color: white;
}

.control-btn.copy-btn:hover {
    background: #5aa850;
    border-color: #5aa850;
    color: white;
}

.control-btn.star-btn {
    background: var(--jki-green);
    border-color: var(--jki-green);
    color: white;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0;
}

.control-btn.star-btn:hover {
    background: #5aa850;
    border-color: #5aa850;
    color: white;
}

.control-btn.star-btn .material-icons {
    font-size: 20px;
}

/* Copy feedback */
.copy-feedback {
    position: fixed;
    top: 20px;
    right: 20px;
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: 8px;
    font-weight: 500;
    z-index: 10000;
    transform: translateX(100%);
    opacity: 0;
    transition: all 0.3s ease;
    box-shadow: var(--shadow-medium);
}

.copy-feedback.success {
    background: var(--jki-green);
    color: white;
}

.copy-feedback.error {
    background: #e74c3c;
    color: white;
}

.copy-feedback.show {
    transform: translateX(0);
    opacity: 1;
}

/* Periodic table container */
.periodic-container {
    min-height: 600px;
    margin-bottom: var(--spacing-xl);
}

/* Periodic table grid */
.periodic-table {
    display: grid;
    grid-template-columns: repeat(11, 1fr);
    grid-template-rows: repeat(7, 80px);
    gap: 8px;
    max-width: 1100px;
    margin: 0 auto;
    padding: var(--spacing-lg);
}

/* CWE Element cards */
.cwe-element {
    background: var(--card-background);
    border: 2px solid var(--border-light);
    border-radius: 8px;
    padding: var(--spacing-sm);
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    align-items: center;
    text-align: center;
    box-shadow: var(--shadow-light);
    overflow: hidden;
}

.cwe-element:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-medium);
    border-color: var(--primary-blue);
}

.cwe-element.dimmed {
    opacity: 0.3;
    transform: none;
    box-shadow: var(--shadow-light);
}

.cwe-element.dimmed:hover {
    opacity: 0.6;
}

/* Family color borders */
.family-glow .cwe-element.webserver-attacks { border-color: var(--webserver-attacks); }
.family-glow .cwe-element.authentication-authorization { border-color: var(--authentication-authorization); }
.family-glow .cwe-element.data-protection { border-color: var(--data-protection); }
.family-glow .cwe-element.command-injection { border-color: var(--command-injection); }
.family-glow .cwe-element.execution-stability { border-color: var(--execution-stability); }
.family-glow .cwe-element.memory-handling { border-color: var(--memory-handling); }
.family-glow .cwe-element.external-data { border-color: var(--external-data); }

/* Element content */
.element-ranks {
    position: absolute;
    top: 2px;
    left: 2px;
    right: 2px;
    display: flex;
    justify-content: space-between;
    font-size: 10px;
    font-weight: bold;
    line-height: 1;
}

.mitre-rank {
    color: var(--mitre-grey);
}

.jki-rank {
    color: var(--jki-green);
}

.element-number {
    font-size: 18px;
    font-weight: bold;
    color: var(--text-primary);
    margin: 8px 0 2px 0;
}

.element-number-section {
    min-width: 120px;
    flex-shrink: 0;
}

.element-title {
    font-size: 9px;
    font-weight: 500;
    color: var(--text-secondary);
    line-height: 1.1;
    overflow: hidden;
    text-overflow: ellipsis;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    line-clamp: 2;
    -webkit-box-orient: vertical;
}

.list-item-title-row {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: var(--spacing-xs);
    gap: var(--spacing-sm);
}

.list-item-title {
    font-weight: 600;
    font-size: var(--font-size-base);
    line-height: 1.3;
    flex: 1;
}

.list-item-family {
    font-size: var(--font-size-small);
    color: var(--text-secondary);
    font-weight: 500;
    white-space: nowrap;
    flex-shrink: 0;
}

/* Family color styling for list items */
.list-item.webserver-attacks .list-item-family { color: var(--webserver-attacks); }
.list-item.authentication-authorization .list-item-family { color: var(--authentication-authorization); }
.list-item.data-protection .list-item-family { color: var(--data-protection); }
.list-item.command-injection .list-item-family { color: var(--command-injection); }
.list-item.execution-stability .list-item-family { color: var(--execution-stability); }
.list-item.memory-handling .list-item-family { color: var(--memory-handling); }
.list-item.external-data .list-item-family { color: var(--external-data); }

/* List view */
.list-view {
    background: var(--card-background);
    border-radius: 12px;
    box-shadow: var(--shadow-light);
    overflow: hidden;
}

.list-controls {
    padding: var(--spacing-lg);
    background: #f8f9fa;
    border-bottom: 1px solid var(--border-light);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

.sort-section {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

.copy-glyph-btn {
    background: var(--jki-green);
    border: none;
    border-radius: 6px;
    padding: var(--spacing-sm);
    cursor: pointer;
    transition: all 0.2s ease;
    box-shadow: var(--shadow-light);
    color: white;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.copy-glyph-btn:hover {
    background: #5aa850;
    transform: translateY(-1px);
    box-shadow: var(--shadow-medium);
}

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

.copy-glyph-btn .material-icons {
    font-size: 18px;
}

.sort-label {
    font-weight: 600;
    color: var(--text-secondary);
    font-size: var(--font-size-small);
}

.sort-btn {
    background: transparent;
    border: 1px solid var(--border-medium);
    border-radius: 6px;
    padding: var(--spacing-xs) var(--spacing-sm);
    font-size: var(--font-size-small);
    cursor: pointer;
    transition: all 0.2s ease;
}

.sort-btn:hover {
    border-color: var(--primary-blue);
}

.sort-btn.active {
    background: var(--primary-blue);
    border-color: var(--primary-blue);
    color: white;
}

/* JKI-specific sort button styling */
.sort-btn[data-sort="jki"].active {
    background: var(--jki-green);
    border-color: var(--jki-green);
    color: white;
}

.sort-btn[data-sort="jki"]:hover {
    border-color: var(--jki-green);
}

.list-items {
    max-height: 600px;
    overflow-y: auto;
}

.list-item {
    display: block;
    padding: var(--spacing-sm) var(--spacing-md);
    border-bottom: 1px solid var(--border-light);
}

.list-item.dimmed {
    opacity: 0.3;
}

.list-item-content {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.list-item-header {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-md);
}

.list-item-number {
    font-size: var(--font-size-base);
    font-weight: bold;
    color: var(--primary-blue);
}

.list-item-number-row {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    margin-bottom: var(--spacing-xs);
}

.list-item-number-section {
    min-width: 200px;
    max-width: 200px;
    flex-shrink: 0;
}

.list-item-info {
    flex: 1;
}

.list-item-title {
    font-weight: 600;
    font-size: var(--font-size-base);
    line-height: 1.3;
}

.list-item-meta {
    display: flex;
    flex-direction: row;
    gap: var(--spacing-xs);
    align-items: center;
    flex-wrap: wrap;
}

.list-item-description {
    font-size: var(--font-size-small);
    color: var(--text-secondary);
    line-height: 1.3;
    margin-bottom: var(--spacing-xs);
}

.list-item-reasoning {
    font-size: var(--font-size-small);
    line-height: 1.3;
    margin-top: var(--spacing-xs);
}

.jki-notes-label {
    color: var(--jki-green);
    font-weight: bold;
}

.list-item-description-label {
        color: var(--mitre-grey);
    font-weight: bold;
}

.jki-notes-text {
    color: var(--text-muted);
    font-style: italic;
}

.sdp-citation {
    color: var(--jki-green);
    background: transparent;
    padding: 2px 4px;
    border-radius: 3px;
    margin-left: var(--spacing-xs);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    cursor: help;
    font-size: 14px;
    transition: color 0.2s ease;
}

.sdp-citation:hover {
    color: #5aa850;
}

.list-item-ranks {
    display: flex;
    gap: var(--spacing-sm);
    align-items: center;
    flex-shrink: 0;
}

.list-item-actions {
    display: flex;
    align-items: center;
}

.cwe-link {
    color: var(--primary-blue);
    text-decoration: none;
    font-size: var(--font-size-small);
    font-weight: 500;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: 4px;
    transition: background-color 0.2s ease;
}

.cwe-link:hover {
    background: var(--primary-blue);
    color: white;
    text-decoration: none;
}

.rank-badge {
    background: #f8f9fa;
    border: 1px solid var(--border-medium);
    border-radius: 4px;
    padding: 2px 6px;
    font-size: var(--font-size-small);
    font-weight: bold;
    width: 85px;
    text-align: center;
    flex-shrink: 0;
    white-space: nowrap;
    overflow: hidden;
}

.rank-badge.jki {
    background: var(--jki-green);
    color: white;
    border-color: var(--jki-green);
}

.rank-badge.mitre {
    background:var(--mitre-grey);;
    color: white;
    border-color:var(--mitre-grey);;
}

.rank-badge.empty {
    background: #f8f9fa;
    color: var(--text-secondary);
}

/* Family legend */
.family-legend {
    background: var(--card-background);
    border-radius: 12px;
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-light);
    margin-bottom: var(--spacing-xl);
}

.family-legend h3 {
    margin: 0 0 var(--spacing-lg) 0;
    text-align: center;
    color: var(--text-primary);
    font-size: var(--font-size-xl);
}

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

.legend-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm);
    border-radius: 6px;
    transition: background-color 0.2s ease;
    cursor: pointer;
}

.legend-item:hover {
    background: #f8f9fa;
}

.color-box {
    width: 20px;
    height: 20px;
    border-radius: 4px;
    border: 2px solid currentColor;
}

.color-box.webserver-attacks { background: var(--webserver-attacks); }
.color-box.authentication-authorization { background: var(--authentication-authorization); }
.color-box.data-protection { background: var(--data-protection); }
.color-box.command-injection { background: var(--command-injection); }
.color-box.execution-stability { background: var(--execution-stability); }
.color-box.memory-handling { background: var(--memory-handling); }
.color-box.external-data { background: var(--external-data); }

/* Footer */
.footer {
    background: var(--text-primary);
    color: white;
    padding: var(--spacing-xl);
    text-align: center;
}

.footer-content {
    max-width: 800px;
    margin: 0 auto;
}

.footer-content p {
    margin: 0 0 var(--spacing-md) 0;
}

.footer-link {
    color: #87ceeb;
    text-decoration: none;
    font-weight: 500;
}

.footer-link:hover {
    text-decoration: underline;
}

.footer-branding {
    margin-top: var(--spacing-lg);
    padding-top: var(--spacing-lg);
    border-top: 1px solid #555;
    color: #aaa;
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(2px);
}

.modal.show {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-lg);
}

.modal-content {
    background: var(--card-background);
    border-radius: 12px;
    box-shadow: var(--shadow-heavy);
    max-width: 600px;
    width: 100%;
    max-height: 80vh;
    overflow-y: auto;
    position: relative;
    animation: modalSlideIn 0.3s ease;
}

@keyframes modalSlideIn {
    from {
        opacity: 0;
        transform: translateY(-20px) scale(0.9);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.modal-close {
    position: absolute;
    top: var(--spacing-md);
    right: var(--spacing-md);
    background: none;
    border: none;
    font-size: 24px;
    cursor: pointer;
    color: var(--text-secondary);
    width: 32px;
    height: 32px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s ease;
}

.modal-close:hover {
    background: #f8f9fa;
    color: var(--text-primary);
}

.modal-body {
    padding: var(--spacing-xl);
}

.modal-header {
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-lg);
    border-bottom: 1px solid var(--border-light);
}

.modal-cwe-number {
    font-size: var(--font-size-xxl);
    font-weight: bold;
    color: var(--primary-blue);
    margin: 0;
}

.modal-cwe-title {
    font-size: var(--font-size-xl);
    color: var(--text-primary);
    margin: var(--spacing-sm) 0 0 0;
}

.modal-family-badge {
    display: inline-block;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: 20px;
    font-size: var(--font-size-small);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-top: var(--spacing-sm);
    color: white;
}

.modal-family-badge.webserver-attacks { background: var(--webserver-attacks); }
.modal-family-badge.authentication-authorization { background: var(--authentication-authorization); }
.modal-family-badge.data-protection { background: var(--data-protection); }
.modal-family-badge.command-injection { background: var(--command-injection); }
.modal-family-badge.execution-stability { background: var(--execution-stability); }
.modal-family-badge.memory-handling { background: var(--memory-handling); }
.modal-family-badge.external-data { background: var(--external-data); }

.modal-ranks {
    display: flex;
    gap: var(--spacing-lg);
    margin: var(--spacing-lg) 0;
}

.modal-rank-item {
    text-align: center;
    flex: 1;
}

.modal-rank-number {
    font-size: var(--font-size-xl);
    font-weight: bold;
    margin-bottom: var(--spacing-xs);
}

.modal-rank-number.jki {
    color: var(--jki-green);
}

.modal-rank-number.mitre {
    color: var(--mitre-grey);
}

.modal-rank-number.empty {
    color: var(--text-secondary);
}

.modal-rank-label {
    font-size: var(--font-size-small);
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.modal-section {
    margin-bottom: var(--spacing-lg);
}

.modal-section h3 {
    font-size: var(--font-size-lg);
    color: var(--text-primary);
    margin: 0 0 var(--spacing-sm) 0;
}

.modal-section p {
    margin: 0;
    line-height: 1.6;
    color: var(--text-secondary);
}

.modal-reasoning {
    background: #f8f9fa;
    border-left: 4px solid var(--primary-blue);
    padding: var(--spacing-md);
    border-radius: 0 6px 6px 0;
    font-style: italic;
}

.modal-links {
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--border-light);
}

.modal-link {
    color: var(--primary-blue);
    text-decoration: none;
    font-weight: 500;
}

.modal-link:hover {
    text-decoration: underline;
}

/* Mobile notice for automatic view switching */
.mobile-notice {
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--primary-blue-dark) 100%);
    color: white;
    padding: var(--spacing-sm) var(--spacing-md);
    margin: var(--spacing-md) 0;
    border-radius: 8px;
    font-size: var(--font-size-small);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    box-shadow: var(--shadow-light);
    animation: slideIn 0.3s ease-out;
}

.mobile-notice .material-icons {
    font-size: 18px;
    opacity: 0.9;
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Desktop: Hide mobile notice */
@media (min-width: 769px) {
    .mobile-notice {
        display: none;
    }
}

@media (max-width: 768px) {
    .controls {
        flex-direction: column;
        gap: var(--spacing-sm);
        padding: var(--spacing-md);
    }
    
    /* Mobile control group layout */
    .control-group {
        flex-wrap: wrap;
        justify-content: center;
        gap: var(--spacing-xs);
    }
    
    /* Star button - make it prominent */
    .control-group:first-child {
        order: -1;
        margin-bottom: var(--spacing-sm);
    }
    
    /* Filter and view controls - make them more compact */
    .control-group:not(:first-child) {
        width: 100%;
        justify-content: space-between;
        background: rgba(255, 255, 255, 0.8);
        padding: var(--spacing-sm);
        border-radius: 8px;
        border: 1px solid var(--border-light);
    }
    
    /* Group labels for mobile */
    .group-label {
        font-size: 11px;
        font-weight: 700;
        color: var(--text-secondary);
        min-width: 45px;
        text-align: left;
        margin-right: var(--spacing-xs);
    }
    
    /* Compact buttons for mobile */
    .control-btn {
        min-height: 40px;
        padding: var(--spacing-xs) var(--spacing-sm);
        font-size: 12px;
        font-weight: 600;
        border-width: 1px;
        flex: 1;
        max-width: calc(50% - 4px);
        text-align: center;
    }
    
    .star-btn {
        min-width: 48px;
        min-height: 48px;
        max-width: 48px;
        margin: 0 auto;
        display: flex;
        align-items: center;
        justify-content: center;
    }
    
    /* Two-column layout for filter buttons */
    .control-group[data-mobile-layout="filters"] {
        display: grid;
        grid-template-columns: auto 1fr 1fr;
        grid-template-areas: "label btn1 btn2" "label btn3 .";
        gap: var(--spacing-xs);
        align-items: center;
    }
    
    .control-group[data-mobile-layout="filters"] .group-label {
        grid-area: label;
        align-self: center;
    }
    
    .control-group[data-mobile-layout="filters"] .control-btn:nth-of-type(1) {
        grid-area: btn1;
        max-width: none;
    }
    
    .control-group[data-mobile-layout="filters"] .control-btn:nth-of-type(2) {
        grid-area: btn2;
        max-width: none;
    }
    
    .control-group[data-mobile-layout="filters"] .control-btn:nth-of-type(3) {
        grid-area: btn3;
        max-width: none;
    }
    
    /* View controls - side by side */
    .control-group[data-mobile-layout="views"] {
        display: grid;
        grid-template-columns: auto 1fr 1fr;
        grid-template-areas: "label view1 view2";
        gap: var(--spacing-xs);
        align-items: center;
    }
    
    .control-group[data-mobile-layout="views"] .group-label {
        grid-area: label;
    }
    
    .control-group[data-mobile-layout="views"] .control-btn:nth-of-type(1) {
        grid-area: view1;
        max-width: none;
    }
    
    .control-group[data-mobile-layout="views"] .control-btn:nth-of-type(2) {
        grid-area: view2;
        max-width: none;
    }
    
    .periodic-table {
        grid-template-columns: repeat(6, 1fr);
        grid-template-rows: auto;
        gap: 6px;
    }
    
    .cwe-element {
        height: 70px;
    }
    
    .element-number {
        font-size: 14px;
    }
    
    .element-title {
        font-size: 8px;
    }
    
    .jki-branding {
        flex-direction: column;
        text-align: center;
    }
    
    .jki-branding h1 {
        font-size: var(--font-size-lg);
    }
    
    .legend-grid {
        grid-template-columns: 1fr;
    }
    
    .list-item-header {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-sm);
    }
    
    .list-item-ranks {
        justify-content: flex-start;
    }
    
    /* Mobile notice adjustments */
    .mobile-notice {
        margin: var(--spacing-sm) 0;
        padding: var(--spacing-sm);
        font-size: 12px;
    }
    
    .mobile-notice .material-icons {
        font-size: 16px;
    }
}

@media (max-width: 480px) {
    .main-content {
        padding: var(--spacing-md);
    }
    
    .header {
        padding: var(--spacing-sm) var(--spacing-md);
    }
    
    .intro-text p {
        font-size: var(--font-size-small);
    }
    
    .periodic-table {
        grid-template-columns: repeat(4, 1fr);
        padding: var(--spacing-md);
    }
    
    .modal-content {
        margin: var(--spacing-md);
        max-height: 90vh;
    }
    
    .copy-feedback {
        top: 10px;
        right: 10px;
        left: 10px;
        transform: translateY(-100%);
    }
    
    .copy-feedback.show {
        transform: translateY(0);
    }
    
    /* Very small screens - stack everything vertically */
    .controls {
        padding: var(--spacing-sm);
    }
    
    .control-group[data-mobile-layout="filters"] {
        grid-template-columns: 1fr;
        grid-template-areas: 
            "label"
            "btn1"
            "btn2"
            "btn3";
    }
    
    .control-group[data-mobile-layout="views"] {
        grid-template-columns: 1fr;
        grid-template-areas:
            "label"
            "view1"
            "view2";
    }
    
    .control-btn {
        min-height: 44px;
        padding: var(--spacing-sm);
        font-size: 12px;
        max-width: none;
        width: 100%;
    }
    
    .group-label {
        text-align: center;
        margin-bottom: var(--spacing-xs);
    }
    
    /* Mobile notice adjustments for very small screens */
    .mobile-notice {
        margin: var(--spacing-xs) 0;
        padding: var(--spacing-xs) var(--spacing-sm);
        font-size: 11px;
        line-height: 1.4;
    }
    
    .mobile-notice .material-icons {
        font-size: 14px;
    }
}