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

body {
    font-family: 'Microsoft JhengHei', Arial, sans-serif;
    line-height: 1.6;
    color: #333;
    background: linear-gradient(135deg, #e8f5e8 0%, #f0f9ff 100%);
    min-height: 100vh;
}

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

/* Header Styles */
.header {
    background: linear-gradient(135deg, #2d5a27 0%, #1e7e34 100%);
    color: white;
    padding: 1rem 0;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo i {
    font-size: 2rem;
    color: #90ee90;
}

.logo h1 {
    font-size: 1.5rem;
    font-weight: 600;
}

.nav {
    display: flex;
    gap: 2rem;
}

.nav-link {
    color: white;
    text-decoration: none;
    padding: 0.5rem 1rem;
    border-radius: 6px;
    transition: all 0.3s ease;
    font-weight: 500;
}

.nav-link:hover,
.nav-link.active {
    background: rgba(255, 255, 255, 0.2);
    transform: translateY(-2px);
}

/* Main Content */
.main {
    padding: 2rem 0;
    min-height: calc(100vh - 140px);
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, #f8fffe 0%, #e6f7ff 100%);
    padding: 4rem 0;
    margin-bottom: 3rem;
    border-radius: 20px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.hero .container {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 3rem;
    align-items: center;
}

.hero-content h2 {
    font-size: 3rem;
    color: #2d5a27;
    margin-bottom: 1rem;
    font-weight: 700;
}

.hero-content p {
    font-size: 1.2rem;
    color: #666;
    margin-bottom: 2rem;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
}

.hero-icon {
    font-size: 8rem;
    color: #4CAF50;
    opacity: 0.3;
}

/* Button Styles */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 24px;
    border: none;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.3s ease;
    text-align: center;
}

.btn-primary {
    background: linear-gradient(135deg, #4CAF50 0%, #45a049 100%);
    color: white;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(76, 175, 80, 0.4);
}

.btn-secondary {
    background: linear-gradient(135deg, #17a2b8 0%, #138496 100%);
    color: white;
}

.btn-secondary:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(23, 162, 184, 0.4);
}

.btn-success {
    background: linear-gradient(135deg, #28a745 0%, #218838 100%);
    color: white;
}

.btn-success:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(40, 167, 69, 0.4);
}

.btn-warning {
    background: linear-gradient(135deg, #ffc107 0%, #e0a800 100%);
    color: #212529;
}

.btn-warning:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(255, 193, 7, 0.4);
}

.btn-danger {
    background: linear-gradient(135deg, #dc3545 0%, #c82333 100%);
    color: white;
}

.btn-danger:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(220, 53, 69, 0.4);
}

/* Info Section */
.info-section, .features-section {
    padding: 3rem 0;
}

.info-section h3, .features-section h3 {
    text-align: center;
    font-size: 2.5rem;
    color: #2d5a27;
    margin-bottom: 3rem;
    font-weight: 700;
}

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

.info-card, .feature-card {
    background: white;
    padding: 2rem;
    border-radius: 15px;
    text-align: center;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
}

.info-card:hover, .feature-card:hover {
    transform: translateY(-5px);
}

.info-card i, .feature-card i {
    font-size: 3rem;
    color: #4CAF50;
    margin-bottom: 1rem;
}

.info-card h4, .feature-card h4 {
    font-size: 1.5rem;
    color: #2d5a27;
    margin-bottom: 1rem;
    font-weight: 600;
}

.info-card p, .feature-card p {
    color: #666;
    font-size: 1.1rem;
}

/* Page Header */
.page-header {
    text-align: center;
    margin-bottom: 3rem;
    padding: 2rem;
    background: white;
    border-radius: 15px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.page-header h2 {
    font-size: 2.5rem;
    color: #2d5a27;
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 15px;
}

.page-header p {
    font-size: 1.2rem;
    color: #666;
}

/* Form Styles */
.form-section {
    margin-bottom: 2rem;
}

.form-card {
    background: white;
    padding: 2.5rem;
    border-radius: 15px;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
    margin-bottom: 2rem;
}

.form-card h3 {
    font-size: 1.8rem;
    color: #2d5a27;
    margin-bottom: 2rem;
    display: flex;
    align-items: center;
    gap: 12px;
}

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

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: #333;
    display: flex;
    align-items: center;
    gap: 8px;
}

.required {
    color: #dc3545;
}

.form-group input,
.form-group select {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid #e1e1e1;
    border-radius: 8px;
    font-size: 1rem;
    transition: border-color 0.3s ease;
}

.form-group input:focus,
.form-group select:focus {
    outline: none;
    border-color: #4CAF50;
    box-shadow: 0 0 0 3px rgba(76, 175, 80, 0.1);
}

.form-buttons {
    display: flex;
    gap: 1rem;
    justify-content: flex-start;
    margin-top: 2rem;
}

/* Section Header */
.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
}

.section-header h3 {
    margin: 0;
}

/* Members List */
.members-list {
    background: white;
    padding: 2rem;
    border-radius: 15px;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
    margin-top: 2rem;
}

.members-list h3 {
    color: #2d5a27;
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 12px;
}

.members-container {
    display: grid;
    gap: 1rem;
}

.member-card {
    background: #f8f9fa;
    padding: 1.5rem;
    border-radius: 10px;
    border-left: 4px solid #4CAF50;
    transition: transform 0.2s ease;
}

.member-card:hover {
    transform: translateX(5px);
}

.member-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

.member-name {
    font-size: 1.3rem;
    font-weight: 600;
    color: #2d5a27;
}

.member-actions {
    display: flex;
    gap: 0.5rem;
}

.btn-sm {
    padding: 6px 12px;
    font-size: 0.875rem;
}

.member-info {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
}

.member-detail {
    display: flex;
    align-items: center;
    gap: 8px;
    color: #666;
}

.member-detail i {
    color: #4CAF50;
    width: 16px;
}

/* Add Member Form */
.add-member-form {
    background: #f8f9fa;
    padding: 2rem;
    border-radius: 10px;
    margin-bottom: 2rem;
    border: 2px dashed #4CAF50;
}

.add-member-form h4 {
    color: #2d5a27;
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 10px;
}

/* Members Management */
.members-management {
    margin-top: 2rem;
}

.management-card {
    background: #f8f9fa;
    padding: 1.5rem;
    border-radius: 10px;
    margin-bottom: 1rem;
    border-left: 4px solid #4CAF50;
}

.management-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

.management-name {
    font-size: 1.2rem;
    font-weight: 600;
    color: #2d5a27;
}

.management-actions {
    display: flex;
    gap: 0.5rem;
}

.management-info {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 0.5rem;
}

.management-detail {
    font-size: 0.9rem;
    color: #666;
    display: flex;
    align-items: center;
    gap: 6px;
}

.management-detail i {
    color: #4CAF50;
    width: 14px;
}

/* Modal Styles */
.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    animation: fadeIn 0.3s ease;
}

.modal-content {
    background-color: white;
    margin: 5% auto;
    padding: 0;
    border-radius: 15px;
    width: 90%;
    max-width: 600px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    animation: slideIn 0.3s ease;
}

.modal-header {
    padding: 2rem 2rem 1rem 2rem;
    border-bottom: 1px solid #e1e1e1;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-header h3 {
    color: #2d5a27;
    margin: 0;
    display: flex;
    align-items: center;
    gap: 12px;
}

.close-btn {
    background: none;
    border: none;
    font-size: 2rem;
    color: #999;
    cursor: pointer;
    padding: 0;
    width: 30px;
    height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.close-btn:hover {
    color: #666;
}

.modal-body {
    padding: 2rem;
}

.modal-footer {
    padding: 1rem 2rem 2rem 2rem;
    display: flex;
    gap: 1rem;
    justify-content: flex-end;
}

.group-id {
    background: #e8f5e8;
    padding: 1rem;
    border-radius: 8px;
    font-weight: 600;
    color: #2d5a27;
    text-align: center;
    margin-top: 1rem;
}

/* Group Data Section */
.group-data-section {
    animation: fadeInUp 0.5s ease;
}

/* Contact Info Display */
.contact-info-display {
    margin-bottom: 2rem;
}

.contact-display-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.contact-display-item {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 0.5rem;
    background: white;
    border-radius: 6px;
}

.contact-display-item i {
    color: #4CAF50;
    width: 16px;
    flex-shrink: 0;
}

.contact-display-item .label {
    font-weight: 600;
    color: #333;
    flex-shrink: 0;
}

.contact-display-item .value {
    color: #666;
    word-break: break-all;
}

/* Animations */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes slideIn {
    from { 
        opacity: 0;
        transform: translateY(-50px);
    }
    to { 
        opacity: 1;
        transform: translateY(0);
    }
}

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

/* Footer */
.footer {
    background: #2d5a27;
    color: white;
    text-align: center;
    padding: 1.5rem 0;
    margin-top: auto;
}

/* Responsive Design */
@media (max-width: 768px) {
    .hero .container {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .hero-content h2 {
        font-size: 2rem;
    }
    
    .hero-buttons {
        justify-content: center;
        flex-wrap: wrap;
    }
    
    .info-grid, .features-grid {
        grid-template-columns: 1fr;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .header .container {
        flex-direction: column;
        gap: 1rem;
    }
    
    .nav {
        gap: 1rem;
    }
    
    .section-header {
        flex-direction: column;
        gap: 1rem;
        align-items: stretch;
    }
    
    .management-header {
        flex-direction: column;
        gap: 1rem;
        align-items: stretch;
    }
    
    .management-actions {
        justify-content: center;
    }
    
    .member-header {
        flex-direction: column;
        gap: 1rem;
        align-items: stretch;
    }
    
    .member-actions {
        justify-content: center;
    }
    
    .modal-content {
        margin: 10% auto;
        width: 95%;
    }
    
    .modal-footer {
        flex-direction: column;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }
    
    .form-card {
        padding: 1.5rem;
    }
    
    .page-header {
        padding: 1.5rem;
    }
    
    .page-header h2 {
        font-size: 1.8rem;
        flex-direction: column;
        gap: 10px;
    }
}