/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', 'Roboto', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #FFF8E1;
}

/* Color Variables */
:root {
    --primary-green: #4CAF50;
    --earth-brown: #8D6E63;
    --accent-blue: #2196F3;
    --background-cream: #FFF8E1;
    --text-dark: #333;
    --text-light: #666;
    --border-color: #ddd;
    --shadow-light: 0 2px 10px rgba(0,0,0,0.1);
    --shadow-medium: 0 4px 20px rgba(0,0,0,0.15);
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--text-dark);
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.25rem; }
h5 { font-size: 1.1rem; }
h6 { font-size: 1rem; }

p {
    margin-bottom: 1rem;
    color: var(--text-light);
}

a {
    color: var(--primary-green);
    text-decoration: none;
    transition: color 0.3s ease;
}

a:hover {
    color: var(--accent-blue);
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header Styles */
header {
    background: white;
    box-shadow: var(--shadow-light);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    transition: background-color 0.3s ease;
}

header.scrolled {
    background-color: rgba(255, 255, 255, 0.95);
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 0;
}

.logo {
    display: flex;
    align-items: center;
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--primary-green);
}

.logo-icon {
    width: 40px;
    height: 40px;
    margin-right: 10px;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-menu a {
    color: var(--text-dark);
    font-weight: 500;
    transition: color 0.3s ease;
}

.nav-menu a:hover {
    color: var(--primary-green);
}

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background: var(--text-dark);
    margin: 3px 0;
    transition: 0.3s;
}

/* Search Box */
.search-box {
    position: relative;
    max-width: 400px;
    margin: 2rem auto;
}

.search-box input {
    width: 100%;
    padding: 12px 45px 12px 20px;
    border: 2px solid var(--border-color);
    border-radius: 25px;
    font-size: 16px;
    transition: border-color 0.3s ease;
}

.search-box input:focus {
    outline: none;
    border-color: var(--primary-green);
}

.search-box button {
    position: absolute;
    right: 5px;
    top: 50%;
    transform: translateY(-50%);
    background: var(--primary-green);
    border: none;
    color: white;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

.search-box button:hover {
    background: var(--accent-blue);
}

.search-suggestions {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: white;
    border: 1px solid var(--border-color);
    border-radius: 10px;
    margin-top: 5px;
    max-height: 200px;
    overflow-y: auto;
    display: none;
    z-index: 100;
}

.search-suggestions.active {
    display: block;
}

.search-suggestions div {
    padding: 10px 20px;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

.search-suggestions div:hover {
    background-color: var(--background-cream);
}

/* Banner Carousel */
.banner-carousel {
    position: relative;
    height: 500px;
    overflow: hidden;
    border-radius: 15px;
    margin: 2rem 0;
}

.banner-slide {
    position: absolute;
    width: 100%;
    height: 100%;
    opacity: 0;
    transition: opacity 1s ease-in-out;
}

.banner-slide.active {
    opacity: 1;
}

.banner-slide img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.banner-content {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(transparent, rgba(0,0,0,0.8));
    color: white;
    padding: 2rem;
}

.banner-controls {
    position: absolute;
    bottom: 20px;
    right: 20px;
    display: flex;
    gap: 10px;
}

.banner-btn {
    background: rgba(255,255,255,0.3);
    border: none;
    color: white;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

.banner-btn:hover {
    background: rgba(255,255,255,0.5);
}

/* Category Navigation */
.category-nav {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
    margin: 3rem 0;
}

.category-card {
    background: white;
    border-radius: 15px;
    padding: 2rem;
    text-align: center;
    box-shadow: var(--shadow-light);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    cursor: pointer;
}

.category-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-medium);
}

.category-icon {
    width: 60px;
    height: 60px;
    margin: 0 auto 1rem;
    background: var(--primary-green);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 24px;
}

/* Article Cards */
.articles-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr); /* 默认两列布局 */
    gap: 1rem;
    margin: 2rem 0;
}

/* 只有在大屏幕上才显示三列 */
@media (min-width: 768px) {
    .articles-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 2rem;
    }
}

.article-card {
    background: white;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: var(--shadow-light);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.article-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-medium);
}

.article-image {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.article-content {
    padding: 1.5rem;
}

.article-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--text-dark);
}

.article-meta {
    font-size: 0.9rem;
    color: var(--text-light);
    margin-bottom: 1rem;
}

.article-summary {
    color: var(--text-light);
    line-height: 1.6;
    margin-bottom: 1rem;
}

.read-more-btn {
    background: var(--primary-green);
    color: white;
    padding: 10px 20px;
    border: none;
    border-radius: 25px;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

.read-more-btn:hover {
    background: var(--accent-blue);
}

/* Data Visualization */
.data-viz-section {
    background: white;
    border-radius: 15px;
    padding: 2rem;
    margin: 3rem 0;
    box-shadow: var(--shadow-light);
}

.chart-container {
    position: relative;
    height: 400px;
    margin: 2rem 0;
}

/* Video Section */
.video-section {
    margin: 3rem 0;
}

.video-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.video-card {
    position: relative;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: var(--shadow-light);
    cursor: pointer;
}

.video-thumbnail {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.play-button {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 60px;
    height: 60px;
    background: rgba(0,0,0,0.7);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 24px;
    transition: background-color 0.3s ease;
}

.video-card:hover .play-button {
    background: var(--primary-green);
}

/* Newsletter Section */
.newsletter {
    background: var(--primary-green);
    color: white;
    padding: 3rem 0;
    margin: 3rem 0;
    border-radius: 15px;
}

.newsletter-form {
    display: flex;
    gap: 1rem;
    max-width: 500px;
    margin: 0 auto;
}

.newsletter-form input {
    flex: 1;
    padding: 12px 20px;
    border: none;
    border-radius: 25px;
    font-size: 16px;
}

.newsletter-form button {
    background: var(--accent-blue);
    color: white;
    border: none;
    padding: 12px 30px;
    border-radius: 25px;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

.newsletter-form button:hover {
    background: #1976D2;
}

/* Footer */
footer {
    background: var(--earth-brown);
    color: white;
    padding: 3rem 0 1rem;
    margin-top: 4rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-section h3 {
    margin-bottom: 1rem;
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: 0.5rem;
}

.footer-section a {
    color: white;
    transition: color 0.3s ease;
}

.footer-section a:hover {
    color: var(--background-cream);
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255,255,255,0.2);
}

/* Modal Styles */
.modal {
    display: none;
    position: fixed;
    z-index: 2000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0,0,0,0.6);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.modal.active {
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 1;
}

.modal-content {
    background: linear-gradient(135deg, #ffffff 0%, #f8f9fa 100%);
    padding: 2.5rem;
    border-radius: 20px;
    max-width: 850px;
    width: 90%;
    max-height: 90vh;
    overflow-y: auto;
    position: relative;
    box-shadow: 0 20px 60px rgba(0,0,0,0.3);
    border: 1px solid rgba(255,255,255,0.2);
    transform: scale(0.9);
    transition: transform 0.3s ease;
}

.modal.active .modal-content {
    transform: scale(1);
}

.close-modal {
    position: absolute;
    top: 20px;
    right: 25px;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: linear-gradient(135deg, #ff6b6b 0%, #ee5a52 100%);
    color: white;
    border: none;
    font-size: 20px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(255, 107, 107, 0.3);
}

.close-modal:hover {
    transform: scale(1.1) rotate(90deg);
    box-shadow: 0 6px 20px rgba(255, 107, 107, 0.4);
}

/* Loading Spinner */
.spinner {
    border: 4px solid #f3f3f3;
    border-top: 4px solid var(--primary-green);
    border-radius: 50%;
    width: 40px;
    height: 40px;
    animation: spin 1s linear infinite;
    margin: 20px auto;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Responsive Design */
@media (max-width: 767px) {
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background-color: white;
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: var(--shadow-light);
        padding: 2rem 0;
    }

    .nav-menu.active {
        left: 0;
    }

    .hamburger {
        display: flex;
        background: #4CAF50;
        border-radius: 4px;
        padding: 8px;
    }

    .hamburger.active span:nth-child(2) {
        opacity: 0;
    }

    .hamburger.active span:nth-child(1) {
        transform: translateY(9px) rotate(45deg);
    }

    .hamburger.active span:nth-child(3) {
        transform: translateY(-9px) rotate(-45deg);
    }

    .banner-carousel {
        height: 300px;
    }

    .articles-grid {
        grid-template-columns: 1fr;
    }

    .category-nav {
        grid-template-columns: 1fr;
    }

    .newsletter-form {
        flex-direction: column;
    }

    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
}

/* Touch interaction styles */
.touch-active {
    transform: scale(0.98);
    transition: transform 0.1s ease;
}

/* Smooth transitions for mobile interactions */
@media (max-width: 767px) {
    .article-card,
    .category-card,
    .video-card,
    .btn,
    .nav-menu a {
        transition: transform 0.2s ease, box-shadow 0.2s ease;
    }
    
    .article-card:active,
    .category-card:active,
    .video-card:active,
    .btn:active,
    .nav-menu a:active {
        transform: scale(0.98);
        box-shadow: 0 2px 8px rgba(0,0,0,0.15);
    }
}

@media (max-width: 480px) {
    h1 { font-size: 2rem; }
    h2 { font-size: 1.5rem; }
    
    .container {
        padding: 0 15px;
    }

    .banner-carousel {
        height: 250px;
    }

    .modal-content {
        padding: 1rem;
        width: 95%;
    }
}

/* Advanced Modal Content Styles */
.modal-header {
    text-align: center;
    margin-bottom: 2rem;
    padding-bottom: 1rem;
    border-bottom: 2px solid rgba(76, 175, 80, 0.2);
}

.modal-header h2 {
    color: var(--primary-green);
    font-size: 2.2rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    background: linear-gradient(135deg, var(--primary-green), var(--accent-blue));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.modal-header p {
    color: var(--text-light);
    font-size: 1.1rem;
    margin: 0;
}

/* Enhanced Form Styles */
.calculator-form {
    background: rgba(255, 255, 255, 0.8);
    padding: 2rem;
    border-radius: 15px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
    backdrop-filter: blur(4px);
    border: 1px solid rgba(255, 255, 255, 0.5);
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: var(--text-dark);
    font-size: 1.1rem;
}

.form-group select,
.form-group input {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid rgba(76, 175, 80, 0.3);
    border-radius: 12px;
    font-size: 1rem;
    transition: all 0.3s ease;
    background: white;
}

.form-group select:focus,
.form-group input:focus {
    outline: none;
    border-color: var(--primary-green);
    box-shadow: 0 0 0 3px rgba(76, 175, 80, 0.2);
    transform: translateY(-2px);
}

/* Enhanced Button Styles */
.btn-glow {
    background: linear-gradient(135deg, var(--primary-green), #45a049);
    color: white;
    border: none;
    padding: 15px 30px;
    border-radius: 25px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 8px 25px rgba(76, 175, 80, 0.3);
    display: flex;
    align-items: center;
    gap: 10px;
    margin: 1.5rem auto;
}

.btn-glow:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 35px rgba(76, 175, 80, 0.4);
}

.btn-glow:active {
    transform: translateY(-1px);
}

/* Enhanced Result Box */
.result-box {
    margin-top: 2rem;
    padding: 2rem;
    background: linear-gradient(135deg, #e8f5e8, #d4edda);
    border-radius: 15px;
    border-left: 5px solid var(--primary-green);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    animation: slideInUp 0.6s ease-out;
}

.result-box h3 {
    color: var(--primary-green);
    margin-bottom: 1rem;
    font-size: 1.4rem;
}

.result-box p {
    margin-bottom: 0.8rem;
    font-size: 1.1rem;
}

.result-box .disclaimer {
    font-size: 0.9rem;
    color: var(--text-light);
    font-style: italic;
    margin-top: 1rem;
}

/* Enhanced Map Container */
.map-container {
    background: rgba(255, 255, 255, 0.9);
    border-radius: 20px;
    padding: 2rem;
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.15);
    backdrop-filter: blur(8px);
    border: 1px solid rgba(255, 255, 255, 0.6);
}

.echarts-map-container {
    position: relative;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.2);
    margin-bottom: 2rem;
}

.map-controls {
    position: absolute;
    top: 15px;
    right: 15px;
    display: flex;
    gap: 10px;
    z-index: 10;
}

.map-control-btn {
    width: 45px;
    height: 45px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary-green), var(--accent-blue));
    color: white;
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.map-control-btn:hover {
    transform: scale(1.1);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.3);
}

.map-info-panel {
    background: linear-gradient(135deg, #f8f9fa, #e9ecef);
    border-radius: 15px;
    padding: 1.5rem;
    margin-bottom: 1.5rem;
    border: 1px solid rgba(0, 0, 0, 0.1);
}

.map-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 1rem;
    margin: 1rem 0;
}

.map-stat-item {
    text-align: center;
    padding: 1rem;
    background: white;
    border-radius: 10px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.map-stat-number {
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary-green);
    margin-bottom: 0.5rem;
}

.map-stat-label {
    font-size: 0.9rem;
    color: var(--text-light);
}

/* Enhanced Legend */
.map-legend {
    background: rgba(255, 255, 255, 0.8);
    border-radius: 15px;
    padding: 1.5rem;
    border: 1px solid rgba(0, 0, 0, 0.1);
}

.map-legend h4 {
    color: var(--text-dark);
    margin-bottom: 1rem;
    font-size: 1.2rem;
}

.legend-item {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 0.8rem;
    font-size: 1rem;
}

.legend-color {
    width: 20px;
    height: 20px;
    border-radius: 50%;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}

.legend-color.severe {
    background: linear-gradient(135deg, #ff6b6b, #ee5a52);
}

.legend-color.moderate {
    background: linear-gradient(135deg, #ffa726, #ff9800);
}

.legend-color.minimal {
    background: linear-gradient(135deg, #66bb6a, #4caf50);
}

/* Enhanced Comparison Table */
.comparison-table {
    background: rgba(255, 255, 255, 0.9);
    border-radius: 20px;
    padding: 2rem;
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.15);
    backdrop-filter: blur(8px);
    overflow-x: auto;
}

.comparison-table table {
    width: 100%;
    border-collapse: collapse;
    background: white;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.1);
}

.comparison-table th {
    background: linear-gradient(135deg, var(--primary-green), var(--accent-blue));
    color: white;
    padding: 1.2rem;
    text-align: left;
    font-weight: 600;
    font-size: 1.1rem;
}

.comparison-table td {
    padding: 1.2rem;
    border-bottom: 1px solid rgba(0, 0, 0, 0.1);
    font-size: 1rem;
    transition: background-color 0.3s ease;
}

.comparison-table tr:hover {
    background-color: rgba(76, 175, 80, 0.05);
}

.comparison-table tr:last-child td {
    border-bottom: none;
}

.comparison-notes {
    margin-top: 2rem;
    padding: 1.5rem;
    background: linear-gradient(135deg, #e3f2fd, #bbdefb);
    border-radius: 15px;
    border-left: 5px solid var(--accent-blue);
}

/* Rating and Cost Visualization Styles */
.rating-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
}

.rating-stars {
    font-size: 1.2rem;
    color: #ffa726;
    text-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.rating-label {
    font-size: 0.9rem;
    color: var(--text-light);
    font-weight: 500;
}

.cost-indicator {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
}

.cost-bars {
    display: flex;
    gap: 3px;
    align-items: end;
}

.cost-bar {
    width: 8px;
    background: linear-gradient(to top, #e0e0e0, #f5f5f5);
    border-radius: 4px;
    transition: all 0.3s ease;
}

.cost-bar:nth-child(1) { height: 12px; }
.cost-bar:nth-child(2) { height: 16px; }
.cost-bar:nth-child(3) { height: 20px; }
.cost-bar:nth-child(4) { height: 24px; }
.cost-bar:nth-child(5) { height: 28px; }

.cost-bar.filled {
    background: linear-gradient(to top, var(--primary-green), #66bb6a);
    box-shadow: 0 2px 8px rgba(76, 175, 80, 0.3);
}

.cost-bar.filled:nth-child(1) { height: 12px; }
.cost-bar.filled:nth-child(2) { height: 16px; }
.cost-bar.filled:nth-child(3) { height: 20px; }
.cost-bar.filled:nth-child(4) { height: 24px; }
.cost-bar.filled:nth-child(5) { height: 28px; }

.cost-label {
    font-size: 0.8rem;
    color: var(--text-light);
    font-weight: 500;
}

/* Environmental Impact Badges */
.impact-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 500;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

.impact-badge.high {
    background: linear-gradient(135deg, #ff6b6b, #ee5a52);
    color: white;
}

.impact-badge.medium {
    background: linear-gradient(135deg, #ffa726, #ff9800);
    color: white;
}

.impact-badge.low {
    background: linear-gradient(135deg, #66bb6a, #4caf50);
    color: white;
}

.impact-badge.positive {
    background: linear-gradient(135deg, #4caf50, #388e3c);
    color: white;
}

/* Comparison Summary Cards */
.comparison-summary {
    margin-top: 2rem;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
}

.summary-card {
    background: linear-gradient(135deg, rgba(76, 175, 80, 0.1), rgba(255, 255, 255, 0.8));
    border-radius: 15px;
    padding: 1.5rem;
    border: 1px solid rgba(76, 175, 80, 0.2);
    transition: all 0.3s ease;
}

.summary-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(76, 175, 80, 0.15);
}

.summary-card h4 {
    color: var(--primary-green);
    margin-bottom: 1rem;
    font-size: 1.1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.summary-card ul {
    list-style: none;
    padding: 0;
}

.summary-card li {
    padding: 0.3rem 0;
    color: var(--text-light);
    font-size: 0.95rem;
    position: relative;
    padding-left: 1.2rem;
}

.summary-card li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--primary-green);
    font-weight: bold;
}

/* Animation Classes */
.fade-in {
    animation: fadeIn 0.6s ease-in;
}

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

@keyframes slideInUp {
    from { opacity: 0; transform: translateY(30px); }
    to { opacity: 1; transform: translateY(0); }
}

.slide-in-left {
    animation: slideInLeft 0.6s ease-out;
}

@keyframes slideInLeft {
    from { transform: translateX(-100%); }
    to { transform: translateX(0); }
}

.slide-in-right {
    animation: slideInRight 0.6s ease-out;
}

@keyframes slideInRight {
    from { transform: translateX(100%); }
    to { transform: translateX(0); }
}

/* Utility Classes */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.mb-1 { margin-bottom: 1rem; }
.mb-2 { margin-bottom: 2rem; }
.mb-3 { margin-bottom: 3rem; }

.mt-1 { margin-top: 1rem; }
.mt-2 { margin-top: 2rem; }
.mt-3 { margin-top: 3rem; }

.p-1 { padding: 1rem; }
.p-2 { padding: 2rem; }
.p-3 { padding: 3rem; }

.btn {
    padding: 10px 20px;
    border: none;
    border-radius: 25px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-weight: 500;
}

.btn-primary {
    background: var(--primary-green);
    color: white;
}

.btn-primary:hover {
    background: #45a049;
    transform: translateY(-2px);
}

.btn-secondary {
    background: var(--accent-blue);
    color: white;
}

.btn-secondary:hover {
    background: #1976D2;
    transform: translateY(-2px);
}