/* Alkaline Earth Metals Page Specific Styles */

/* Emerald Theme Variables */
:root {
    --emerald-primary: #10b981;
    --emerald-secondary: #059669;
    --emerald-dark: #064e3b;
    --emerald-accent: #34d399;
    --emerald-light: #6ee7b7;
    --emerald-glow: rgba(16, 185, 129, 0.4);
}

/* Override category color with emerald theme */
.alkaline-earth-page {
    --category-color: var(--emerald-primary);
}

/* Animated Particle Background */
.particle-background {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 0;
    overflow: hidden;
}

.particle {
    position: absolute;
    width: 4px;
    height: 4px;
    background: var(--emerald-accent);
    border-radius: 50%;
    box-shadow: 0 0 10px var(--emerald-glow);
    animation: particleFloat 20s infinite linear;
}

@keyframes particleFloat {
    0% {
        transform: translateY(100vh) translateX(0);
        opacity: 0;
    }
    10% {
        opacity: 1;
    }
    90% {
        opacity: 1;
    }
    100% {
        transform: translateY(-100vh) translateX(100px);
        opacity: 0;
    }
}

/* Hero Section Enhancements */
.alkaline-hero {
    position: relative;
    min-height: 80vh;
    background: linear-gradient(135deg, 
        var(--emerald-dark) 0%, 
        #0a0f1b 50%, 
        var(--emerald-dark) 100%);
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 100px 20px 60px;
}

.emerald-glow-orb {
    position: absolute;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, var(--emerald-glow) 0%, transparent 70%);
    border-radius: 50%;
    animation: orbPulse 4s ease-in-out infinite;
}

.emerald-glow-orb.orb-1 {
    top: -200px;
    right: -200px;
}

.emerald-glow-orb.orb-2 {
    bottom: -200px;
    left: -200px;
    animation-delay: 2s;
}

@keyframes orbPulse {
    0%, 100% {
        transform: scale(1);
        opacity: 0.6;
    }
    50% {
        transform: scale(1.2);
        opacity: 0.3;
    }
}

/* Element Symbol Animations */
.floating-symbol {
    position: absolute;
    font-family: 'Orbitron', monospace;
    font-weight: 900;
    font-size: 2rem;
    color: var(--emerald-accent);
    text-shadow: 0 0 20px var(--emerald-glow);
    opacity: 0.3;
    animation: symbolFloat 15s ease-in-out infinite;
}

.floating-symbol.symbol-be {
    top: 10%;
    left: 10%;
    animation-delay: 0s;
}

.floating-symbol.symbol-mg {
    top: 20%;
    right: 15%;
    animation-delay: 2s;
}

.floating-symbol.symbol-ca {
    bottom: 20%;
    left: 20%;
    animation-delay: 4s;
}

.floating-symbol.symbol-sr {
    bottom: 30%;
    right: 10%;
    animation-delay: 6s;
}

.floating-symbol.symbol-ba {
    top: 40%;
    left: 5%;
    animation-delay: 8s;
}

.floating-symbol.symbol-ra {
    top: 50%;
    right: 25%;
    animation-delay: 10s;
}

@keyframes symbolFloat {
    0%, 100% {
        transform: translateY(0) translateX(0) rotateZ(0deg);
    }
    33% {
        transform: translateY(-30px) translateX(20px) rotateZ(5deg);
    }
    66% {
        transform: translateY(20px) translateX(-15px) rotateZ(-5deg);
    }
}

/* Hero Content Styles */
.alkaline-hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    max-width: 1000px;
}

.alkaline-hero-category-badge {
    margin-bottom: 30px;
}

.alkaline-hero-category-span {
    background: linear-gradient(135deg, var(--emerald-primary), var(--emerald-secondary));
    color: #0a0f1b;
    padding: 12px 30px;
    border-radius: 25px;
    font-size: 1rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 2px;
}

.alkaline-hero-title {
    font-size: 4rem;
    font-weight: 900;
    background: linear-gradient(135deg, var(--emerald-light) 0%, var(--emerald-accent) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 25px;
    text-shadow: 0 0 40px var(--emerald-glow);
}

.alkaline-hero-subtitle {
    font-size: 1.4rem;
    color: #cbd5e1;
    margin-bottom: 40px;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.6;
}

.alkaline-hero-stats {
    display: flex;
    justify-content: center;
    gap: 40px;
    flex-wrap: wrap;
}

.alkaline-stat-value {
    font-size: 3rem;
    font-weight: 900;
    color: var(--emerald-accent);
    font-family: 'Orbitron', monospace;
    text-shadow: 0 0 20px var(--emerald-glow);
    display: block;
}

.alkaline-stat-label {
    color: #94a3b8;
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-top: 5px;
}

/* Content Sections */
.content-wrapper {
    position: relative;
    z-index: 1;
    max-width: 1400px;
    margin: 0 auto;
    padding: 60px 20px;
}

.section-divider {
    height: 2px;
    background: linear-gradient(90deg, 
        transparent 0%, 
        var(--emerald-primary) 50%, 
        transparent 100%);
    margin: 60px 0;
}

/* Table of Contents */
.alkaline-table-of-contents {
    background: linear-gradient(135deg, rgba(16, 185, 129, 0.05) 0%, rgba(6, 78, 59, 0.02) 100%);
    border: 1px solid rgba(16, 185, 129, 0.2);
    border-radius: 15px;
    padding: 40px;
    margin-bottom: 60px;
}

.alkaline-toc-header {
    color: var(--emerald-light);
    font-size: 2rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 30px;
    text-shadow: 0 0 20px var(--emerald-glow);
}

.alkaline-toc-icon {
    margin-right: 10px;
    color: var(--emerald-accent);
}

.alkaline-toc-intro {
    background: rgba(16, 185, 129, 0.1);
    border-left: 4px solid var(--emerald-primary);
    padding: 25px;
    margin-bottom: 30px;
    border-radius: 8px;
}

.alkaline-toc-question {
    color: var(--emerald-accent);
    margin-bottom: 10px;
    font-size: 1.2rem;
    font-weight: 600;
}

.alkaline-toc-answer {
    color: #cbd5e1;
    line-height: 1.8;
    margin: 0;
}

.alkaline-toc-answer a {
    color: var(--emerald-light);
    text-decoration: none;
    transition: color 0.3s;
}

.alkaline-toc-answer a:hover {
    color: var(--emerald-accent);
}

.alkaline-toc-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.alkaline-toc-section h4 {
    color: var(--emerald-accent);
    margin-bottom: 15px;
    font-size: 1.1rem;
    font-weight: 600;
}

.alkaline-toc-section ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.alkaline-toc-section li {
    margin-bottom: 10px;
}

.alkaline-toc-section a {
    color: #cbd5e1;
    text-decoration: none;
    display: flex;
    align-items: center;
    transition: color 0.3s;
}

.alkaline-toc-section a:hover {
    color: var(--emerald-accent);
}

.alkaline-toc-chevron {
    color: var(--emerald-primary);
    margin-right: 8px;
    font-size: 0.8rem;
}

.alkaline-toc-elements {
    margin-top: 30px;
    text-align: center;
    border-top: 1px solid rgba(16, 185, 129, 0.2);
    padding-top: 30px;
}

.alkaline-toc-elements h4 {
    color: var(--emerald-accent);
    margin-bottom: 15px;
    text-align: center;
    font-size: 1.1rem;
}

.alkaline-element-links {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 10px;
}

.alkaline-element-link {
    background: linear-gradient(135deg, rgba(16, 185, 129, 0.2), rgba(6, 78, 59, 0.1));
    color: var(--emerald-light);
    text-decoration: none;
    padding: 8px 15px;
    border-radius: 20px;
    border: 1px solid var(--emerald-primary);
    transition: all 0.3s;
    display: inline-flex;
    align-items: center;
    font-weight: 500;
}

.alkaline-element-link:hover {
    background: linear-gradient(135deg, var(--emerald-primary), var(--emerald-secondary));
    color: #0a0f1b;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(16, 185, 129, 0.3);
}

.alkaline-element-link .element-symbol {
    font-weight: 900;
    font-family: 'Orbitron', monospace;
}

.alkaline-element-link .element-name {
    margin-left: 5px;
    font-size: 0.9rem;
}

.alkaline-toc-related {
    margin-top: 25px;
    text-align: center;
    border-top: 1px solid rgba(16, 185, 129, 0.2);
    padding-top: 25px;
}

.alkaline-toc-related h4 {
    color: var(--emerald-light);
    margin-bottom: 15px;
    text-align: center;
    font-size: 1rem;
}

.alkaline-related-links {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 10px;
}

.alkaline-related-link {
    color: #cbd5e1;
    text-decoration: none;
    padding: 5px 12px;
    border: 1px solid rgba(16, 185, 129, 0.3);
    border-radius: 15px;
    font-size: 0.9rem;
    transition: all 0.3s;
}

.alkaline-related-link:hover {
    background: rgba(16, 185, 129, 0.1);
    color: var(--emerald-accent);
    border-color: var(--emerald-primary);
}

.alkaline-quiz-link {
    color: var(--emerald-accent) !important;
    border-color: var(--emerald-primary) !important;
    font-weight: 600 !important;
}

.alkaline-quiz-link:hover {
    background: var(--emerald-primary) !important;
    color: #0a0f1b !important;
}

/* Section Headers */
.alkaline-section-header {
    font-size: 2.5rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--emerald-light) 0%, var(--emerald-accent) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 40px;
    text-align: center;
}

/* Introduction Section */
.alkaline-intro-content {
    max-width: 900px;
    margin: 0 auto;
    color: #cbd5e1;
    line-height: 1.8;
    font-size: 1.1rem;
}

.alkaline-intro-content p {
    margin-bottom: 20px;
}

.alkaline-intro-highlight {
    background: linear-gradient(135deg, rgba(16, 185, 129, 0.1) 0%, rgba(6, 78, 59, 0.05) 100%);
    border-left: 4px solid var(--emerald-primary);
    padding: 25px;
    margin: 30px 0;
    border-radius: 8px;
}

.alkaline-intro-highlight h3 {
    color: var(--emerald-light);
    margin-bottom: 15px;
    font-size: 1.3rem;
}

.alkaline-intro-highlight p {
    color: #cbd5e1;
    line-height: 1.8;
    margin: 0;
}

.alkaline-warning-box {
    background: linear-gradient(135deg, rgba(251, 191, 36, 0.1) 0%, rgba(217, 119, 6, 0.05) 100%);
    border-left: 4px solid #fbbf24;
    padding: 25px;
    margin: 30px 0;
    border-radius: 8px;
}

.alkaline-warning-box h3 {
    color: #fbbf24;
    margin-bottom: 15px;
}

.alkaline-warning-box ul {
    color: #cbd5e1;
    line-height: 1.8;
    margin: 0;
    padding-left: 20px;
}

/* Element Cards with Emerald Theme */
.element-showcase {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 20px;
    margin-top: 40px;
}

.element-showcase-card {
    background: linear-gradient(135deg, 
        rgba(16, 185, 129, 0.1) 0%, 
        rgba(6, 78, 59, 0.2) 100%);
    border: 2px solid var(--emerald-primary);
    border-radius: 15px;
    padding: 25px;
    text-align: center;
    position: relative;
    overflow: hidden;
    cursor: pointer;
    transition: all 0.3s ease;
}

.element-showcase-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(16, 185, 129, 0.3);
    border-color: var(--emerald-light);
}

.element-showcase-card::before {
    content: '';
    position: absolute;
    top: -100%;
    left: -100%;
    width: 300%;
    height: 300%;
    background: radial-gradient(circle, var(--emerald-glow) 0%, transparent 70%);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.element-showcase-card:hover::before {
    opacity: 0.3;
}

.showcase-symbol {
    font-size: 3rem;
    font-weight: 900;
    color: var(--emerald-accent);
    font-family: 'Orbitron', monospace;
    margin-bottom: 10px;
    text-shadow: 0 0 20px var(--emerald-glow);
}

.showcase-number {
    position: absolute;
    top: 10px;
    right: 15px;
    font-size: 0.9rem;
    color: var(--emerald-light);
    opacity: 0.7;
}

.showcase-name {
    font-size: 1.2rem;
    color: #e2e8f0;
    margin-bottom: 10px;
}

.showcase-mass {
    font-size: 0.9rem;
    color: #94a3b8;
}

/* Properties Comparison Section */
.alkaline-properties-content {
    background: linear-gradient(135deg, rgba(16, 185, 129, 0.15) 0%, rgba(6, 78, 59, 0.1) 100%);
    border: 1px solid var(--emerald-primary);
    border-radius: 15px;
    padding: 40px;
    margin-bottom: 40px;
}

.alkaline-properties-title {
    color: var(--emerald-accent);
    margin-bottom: 15px;
    font-size: 1.3rem;
}

.alkaline-properties-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
}

.alkaline-properties-section p {
    color: var(--emerald-light);
    font-weight: 600;
    margin-bottom: 8px;
}

.alkaline-properties-section ul {
    color: #cbd5e1;
    font-size: 0.95rem;
    line-height: 1.6;
    margin: 0;
    padding-left: 20px;
}

/* Property Comparison Table */
.comparison-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 30px;
    background: rgba(10, 15, 27, 0.8);
    border: 1px solid var(--emerald-dark);
    border-radius: 10px;
    overflow: hidden;
}

.comparison-table th {
    background: linear-gradient(135deg, var(--emerald-dark) 0%, rgba(6, 78, 59, 0.5) 100%);
    color: var(--emerald-light);
    padding: 15px;
    text-align: left;
    font-weight: 600;
    border-bottom: 2px solid var(--emerald-primary);
}

.comparison-table td {
    padding: 12px 15px;
    color: #e2e8f0;
    border-bottom: 1px solid rgba(16, 185, 129, 0.2);
}

.comparison-table tr:hover {
    background: rgba(16, 185, 129, 0.05);
}

.comparison-table .symbol-cell {
    color: var(--emerald-accent);
    font-weight: bold;
}

.comparison-table-wrapper {
    overflow-x: auto;
}

/* Trend Visualization */
.alkaline-trends {
    margin-top: 40px;
}

.alkaline-trends h3 {
    color: var(--emerald-light);
    margin-bottom: 20px;
    text-align: center;
    font-size: 1.3rem;
}

.alkaline-trend-chart {
    background: rgba(10, 15, 27, 0.6);
    border: 1px solid var(--emerald-primary);
    border-radius: 15px;
    padding: 30px;
    margin-bottom: 30px;
}

.alkaline-trend-chart h4 {
    color: var(--emerald-accent);
    margin-bottom: 20px;
}

.alkaline-radius-chart {
    display: flex;
    align-items: flex-end;
    justify-content: space-around;
    height: 200px;
}

.alkaline-radius-bar {
    text-align: center;
}

.alkaline-radius-bar-element {
    width: 60px;
    background: linear-gradient(to top, var(--emerald-primary), var(--emerald-light));
    border-radius: 4px 4px 0 0;
    margin-bottom: 10px;
}

.alkaline-radius-bar-element.bar-be {
    height: 56px;
}

.alkaline-radius-bar-element.bar-mg {
    height: 80px;
}

.alkaline-radius-bar-element.bar-ca {
    height: 98px;
}

.alkaline-radius-bar-element.bar-sr {
    height: 107px;
}

.alkaline-radius-bar-element.bar-ba {
    height: 111px;
}

.alkaline-radius-bar-element.bar-ra {
    height: 107px;
}

.alkaline-radius-label {
    color: #cbd5e1;
    margin-top: 10px;
    font-size: 0.9rem;
}

.alkaline-electronegativity-grid {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 15px;
}

.alkaline-electronegativity-item {
    text-align: center;
}

.alkaline-electronegativity-value {
    padding: 15px;
    border-radius: 8px;
}

.alkaline-electronegativity-value.value-be {
    background: rgba(16, 185, 129, 0.9);
}

.alkaline-electronegativity-value.value-mg {
    background: rgba(16, 185, 129, 0.75);
}

.alkaline-electronegativity-value.value-ca {
    background: rgba(16, 185, 129, 0.6);
}

.alkaline-electronegativity-value.value-sr {
    background: rgba(16, 185, 129, 0.45);
}

.alkaline-electronegativity-value.value-ba {
    background: rgba(16, 185, 129, 0.3);
}

.alkaline-electronegativity-value.value-ra {
    background: rgba(16, 185, 129, 0.3);
}

.alkaline-electronegativity-number {
    font-size: 1.5rem;
    font-weight: bold;
}

.alkaline-electronegativity-number.dark-text {
    color: #0a0f1b;
}

.alkaline-electronegativity-number.light-text {
    color: #e2e8f0;
}

.alkaline-electronegativity-label {
    color: #cbd5e1;
    margin-top: 8px;
}

.alkaline-electronegativity-note {
    color: #94a3b8;
    font-size: 0.9rem;
    margin-top: 15px;
    text-align: center;
}

/* Chemical Properties Section */
.alkaline-chemical-properties {
    max-width: 1200px;
    margin: 0 auto;
}

.alkaline-chemical-section {
    margin-bottom: 40px;
}

.alkaline-chemical-section h3 {
    color: var(--emerald-accent);
    font-size: 1.8rem;
    margin-bottom: 20px;
}

.alkaline-chemical-content {
    background: rgba(16, 185, 129, 0.05);
    border-left: 4px solid var(--emerald-primary);
    padding: 30px;
    border-radius: 10px;
}

.alkaline-chemical-content p {
    color: #cbd5e1;
    line-height: 1.8;
    margin-bottom: 20px;
}

.alkaline-chemical-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 25px;
    margin-top: 25px;
}

.alkaline-chemical-card {
    background: rgba(10, 15, 27, 0.5);
    border: 1px solid var(--emerald-primary);
    border-radius: 10px;
    padding: 25px;
    transition: all 0.3s ease;
}

.alkaline-chemical-card:hover {
    background: rgba(16, 185, 129, 0.05);
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(16, 185, 129, 0.15);
}

.alkaline-chemical-card h4 {
    color: var(--emerald-light);
    margin-bottom: 15px;
    font-size: 1.2rem;
}

.alkaline-chemical-card p {
    color: #cbd5e1;
    line-height: 1.6;
    margin: 0;
}

/* Interactive Timeline */
.timeline-container {
    position: relative;
    padding: 40px 0;
    margin-top: 40px;
}

.timeline-line {
    position: absolute;
    left: 50%;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(180deg, var(--emerald-primary) 0%, var(--emerald-dark) 100%);
    transform: translateX(-50%);
}

.timeline-item {
    position: relative;
    margin-bottom: 50px;
    display: flex;
    align-items: center;
}

.timeline-item:nth-child(odd) {
    flex-direction: row-reverse;
}

.timeline-content {
    flex: 1;
    padding: 20px;
    background: linear-gradient(135deg, rgba(16, 185, 129, 1) 0%, rgba(6, 78, 59, 1) 100%);
    border: 1px solid var(--emerald-primary);
    border-radius: 10px;
    margin: 0 30px;
}

.timeline-dot {
    position: absolute;
    left: 50%;
    bottom: 105%;
    transform: translateX(-50%);
    width: 20px;
    height: 20px;
    background: var(--emerald-primary);
    border: 3px solid var(--emerald-dark);
    border-radius: 50%;
    box-shadow: 0 0 20px var(--emerald-glow);
}

/* Application Cards */
.application-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.application-card {
    background: linear-gradient(135deg, rgba(16, 185, 129, 0.05) 0%, rgba(6, 78, 59, 0.1) 100%);
    border: 1px solid var(--emerald-primary);
    border-radius: 15px;
    padding: 30px;
    position: relative;
    overflow: hidden;
}

.application-icon {
    font-size: 3rem;
    color: var(--emerald-accent);
    margin-bottom: 20px;
}

.application-title {
    font-size: 1.5rem;
    color: var(--emerald-light);
    margin-bottom: 15px;
    font-weight: 700;
}

.application-description {
    color: #cbd5e1;
    line-height: 1.8;
}

/* Biological Importance Section */
.bio-importance-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 25px;
    margin-top: 40px;
}

.bio-card {
    background: rgba(16, 185, 129, 0.05);
    border-left: 4px solid var(--emerald-primary);
    padding: 20px;
    border-radius: 8px;
    transition: all 0.3s ease;
}

.bio-card:hover {
    background: rgba(16, 185, 129, 0.1);
    transform: translateX(5px);
}

.bio-icon {
    font-size: 2rem;
    color: var(--emerald-accent);
    margin-bottom: 15px;
}

.bio-title {
    font-size: 1.2rem;
    color: var(--emerald-light);
    margin-bottom: 10px;
    font-weight: 600;
}

.bio-content {
    color: #94a3b8;
    line-height: 1.6;
}

/* Back to Top Button */
.alkaline-back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: var(--emerald-primary);
    color: #0a0f1b;
    border: none;
    border-radius: 50%;
    cursor: pointer;
    font-size: 1.2rem;
    z-index: 1000;
    opacity: 0;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(16, 185, 129, 0.3);
}

.alkaline-back-to-top.visible {
    opacity: 1;
}

.alkaline-back-to-top:hover {
    transform: scale(1.1);
    background: var(--emerald-accent);
    box-shadow: 0 6px 20px rgba(16, 185, 129, 0.4);
}

/* Additional utility classes for inline style replacement */
.ae-card {
    background: rgba(16, 185, 129, 0.1);
    padding: 15px;
    border-radius: 8px;
    border: 1px solid var(--emerald-primary);
}

.ae-card-emerald-90 {
    background: rgba(16, 185, 129, 0.9);
    padding: 15px;
    border-radius: 8px;
}

.ae-card-emerald-75 {
    background: rgba(16, 185, 129, 0.75);
    padding: 15px;
    border-radius: 8px;
}

.ae-card-emerald-60 {
    background: rgba(16, 185, 129, 0.6);
    padding: 15px;
    border-radius: 8px;
}

.ae-card-emerald-45 {
    background: rgba(16, 185, 129, 0.45);
    padding: 15px;
    border-radius: 8px;
}

.ae-card-emerald-30 {
    background: rgba(16, 185, 129, 0.3);
    padding: 15px;
    border-radius: 8px;
}

.ae-gradient-emerald {
    background: linear-gradient(135deg, var(--emerald-primary), var(--emerald-secondary));
}

.ae-gradient-emerald-light {
    background: linear-gradient(135deg, var(--emerald-light), var(--emerald-primary));
}

.ae-text-emerald {
    color: var(--emerald-primary);
}

.ae-text-emerald-light {
    color: var(--emerald-light);
}

.ae-text-emerald-accent {
    color: var(--emerald-accent);
}

.ae-text-slate-300 {
    color: #cbd5e1;
}

.ae-text-slate-400 {
    color: #94a3b8;
}

.ae-text-dark {
    color: #0a0f1b;
}

.ae-bg-clip-text {
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.ae-shadow-lg {
    box-shadow: 0 10px 30px rgba(16, 185, 129, 0.3);
}

.ae-shadow-emerald {
    text-shadow: 0 0 60px var(--emerald-glow);
}

.ae-rounded-lg {
    border-radius: 15px;
}

.ae-rounded {
    border-radius: 8px;
}

.ae-border-emerald {
    border: 2px solid var(--emerald-primary);
}

.ae-border-emerald-thin {
    border: 1px solid var(--emerald-primary);
}

.ae-border-emerald-opacity {
    border: 1px solid rgba(16, 185, 129, 0.3);
}

.ae-p-15 {
    padding: 15px;
}

.ae-p-30 {
    padding: 30px;
}

.ae-mb-30 {
    margin-bottom: 30px;
}

.ae-mb-60 {
    margin-bottom: 60px;
}

.ae-text-center {
    text-align: center;
}

.ae-text-4xl {
    font-size: 4rem;
}

.ae-text-xl {
    font-size: 1.4rem;
}

.ae-text-3xl {
    font-size: 3rem;
}

.ae-text-base {
    font-size: 1rem;
}

.ae-font-black {
    font-weight: 900;
}

.ae-font-semibold {
    font-weight: 600;
}

.ae-leading-relaxed {
    line-height: 1.8;
}

.ae-uppercase {
    text-transform: uppercase;
}

.ae-flex {
    display: flex;
}

.ae-justify-center {
    justify-content: center;
}

.ae-gap-40 {
    gap: 40px;
}

.ae-flex-wrap {
    flex-wrap: wrap;
}

.ae-grid {
    display: grid;
}

.ae-grid-cols-auto {
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
}

.ae-grid-cols-250 {
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

.ae-grid-cols-200 {
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
}

.ae-grid-cols-300 {
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

.ae-grid-cols-350 {
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
}

.ae-grid-6-cols {
    grid-template-columns: repeat(6, 1fr);
}

.ae-grid-2-cols {
    grid-template-columns: 1fr 1fr;
}

.ae-gap-30 {
    gap: 30px;
}

.ae-gap-25 {
    gap: 25px;
}

.ae-gap-15 {
    gap: 15px;
}

.ae-gap-20 {
    gap: 20px;
}

.ae-mt-20 {
    margin-top: 20px;
}

.ae-relative {
    position: relative;
}

.ae-z-2 {
    z-index: 2;
}

.ae-max-w-1000 {
    max-width: 1000px;
}

.ae-max-w-900 {
    max-width: 900px;
}

.ae-mx-auto {
    margin-left: auto;
    margin-right: auto;
}

.ae-link-emerald {
    color: #cbd5e1;
    text-decoration: none;
    padding: 5px 12px;
    border: 1px solid rgba(16, 185, 129, 0.3);
    border-radius: 15px;
    font-size: 0.9rem;
    transition: all 0.3s;
}

.ae-link-emerald:hover {
    background: rgba(16, 185, 129, 0.1);
    color: var(--emerald-accent);
    border-color: var(--emerald-primary);
}

.ae-quiz-link {
    color: var(--emerald-accent);
    text-decoration: none;
    padding: 5px 12px;
    border: 1px solid var(--emerald-primary);
    border-radius: 15px;
    font-size: 0.9rem;
    transition: all 0.3s;
    font-weight: 600;
}

.ae-quiz-link:hover {
    background: var(--emerald-primary);
    color: #0a0f1b;
}

/* Responsive Design */
@media (max-width: 768px) {
    .alkaline-hero-title {
        font-size: 2.5rem;
    }
    
    .alkaline-hero-stats {
        gap: 20px;
    }
    
    .alkaline-stat-value {
        font-size: 2rem;
    }
    
    .timeline-line {
        left: 20px;
    }
    
    .timeline-item,
    .timeline-item:nth-child(odd) {
        flex-direction: column;
        margin-left: 40px;
    }
    
    .timeline-dot {
        left: 20px;
    }
    
    .timeline-content {
        margin: 0;
    }
    
    .element-showcase {
        grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    }
    
    .showcase-symbol {
        font-size: 2rem;
    }
    
    .alkaline-toc-grid {
        grid-template-columns: 1fr;
    }
    
    .alkaline-properties-grid {
        grid-template-columns: 1fr;
    }
    
    .alkaline-chemical-grid {
        grid-template-columns: 1fr;
    }
    
    .alkaline-radius-chart {
        flex-wrap: wrap;
        height: auto;
        gap: 10px;
    }
    
    .alkaline-electronegativity-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}