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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    margin: 0;
    padding: 0;
    background-image: url('image/biz_template4.jpg');
    background-size: cover;
    background-attachment: fixed;
    background-position: center;
    color: #333;
    min-height: 100vh;
}

/* Safety Theme Colors and Design Tokens */
:root {
    --safety-orange: #FF6B35;
    --safety-yellow: #FFD23F;
    --safety-green: #06A77D;
    --caution-red: #D32F2F;
    --safety-blue: #1976D2;
    
    /* Spacing System */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    
    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    
    /* Shadows */
    --shadow-sm: 0 2px 4px rgba(0,0,0,0.1);
    --shadow-md: 0 4px 6px rgba(0,0,0,0.1);
    --shadow-lg: 0 10px 20px rgba(0,0,0,0.15);
    --shadow-xl: 0 20px 40px rgba(0,0,0,0.2);
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
}

/* Header and Navigation */
header {
    background: linear-gradient(135deg, var(--safety-orange), var(--safety-blue));
    color: #fff;
    padding: var(--spacing-sm) var(--spacing-md);
    box-shadow: var(--shadow-lg);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.header-container {
    max-width: 1400px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--spacing-md);
}

.logo-link {
    display: flex;
    align-items: center;
    transition: transform var(--transition-fast);
    background: white;
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
}

.logo-link:hover {
    transform: scale(1.05);
    box-shadow: var(--shadow-md);
}

.logo {
    height: 60px;
    width: auto;
    display: block;
}

nav {
    flex: 1;
    display: flex;
    justify-content: flex-end;
}

nav ul {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    justify-content: flex-end;
    flex-wrap: wrap;
    gap: var(--spacing-xs);
}

nav ul li {
    margin: 0;
}

nav ul li a {
    color: #fff;
    text-decoration: none;
    font-weight: 600;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
    display: inline-flex;
    align-items: center;
    background: rgba(255, 255, 255, 0.1);
}

nav ul li a:hover,
nav ul li a:focus {
    background: rgba(255, 255, 255, 0.2);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

nav ul li a .safety-icon {
    color: #fff;
    margin-right: var(--spacing-xs);
}

/* Main Content Area */
main {
    max-width: 1400px;
    margin: 0 auto;
    padding: var(--spacing-lg);
    padding-bottom: 5rem; /* Space for fixed footer */
    background-color: rgba(255, 255, 255, 0.95);
    min-height: calc(100vh - 120px);
}

/* Page Title */
.page-title {
    text-align: center;
    font-size: 2.5rem;
    color: var(--safety-blue);
    margin-bottom: var(--spacing-xl);
    padding-bottom: var(--spacing-md);
    border-bottom: 3px solid var(--safety-orange);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
}

.page-title .safety-icon {
    font-size: 2rem;
    color: var(--safety-orange);
}

/* CSS Grid Layout for Cards */
.content-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(450px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

/* Info Card Styling */
.info-card {
    background: white;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    overflow: hidden;
    transition: all var(--transition-normal);
    border: 2px solid transparent;
}

.info-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
    border-color: var(--safety-orange);
}

.card-header {
    background: linear-gradient(135deg, var(--safety-orange), var(--safety-blue));
    color: white;
    padding: var(--spacing-md);
}

.card-header h2 {
    font-size: 1.4rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.card-header .safety-icon {
    color: white;
    font-size: 1.5rem;
}

.card-content {
    padding: var(--spacing-md);
}

.card-content p {
    margin-bottom: var(--spacing-sm);
    color: #555;
}

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

.card-content ul li {
    padding: var(--spacing-xs) 0;
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-xs);
}

/* Info Items */
.info-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-xs) 0;
    border-bottom: 1px solid #eee;
    margin-bottom: var(--spacing-xs);
}

.info-item:last-of-type {
    border-bottom: none;
}

.info-item .safety-icon {
    flex-shrink: 0;
}

.info-item strong {
    color: var(--safety-blue);
}

/* Badge Container */
.badge-container {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-xs);
    margin-top: var(--spacing-sm);
}

section {
    margin-bottom: 2rem;
}

footer {
    background: linear-gradient(135deg, var(--safety-blue), var(--safety-orange));
    color: #fff;
    text-align: center;
    padding: 1rem 0;
    position: fixed;
    width: 100%;
    bottom: 0;
    box-shadow: 0 -2px 10px rgba(0,0,0,0.3);
}

.management-member {
    margin-bottom: 2rem;
}

.management-member img {
    float: left;
    margin-right: 1rem;
    width: 200px;
    height: auto;
}

.management-member h3 {
    color: #0000ff;
}

.management-member p {
    margin: 0.5rem 0;
}

/* Safety Icons and Visual Elements */
.safety-icon {
    font-size: 1.2em;
    margin-right: 0.5rem;
    color: var(--safety-orange);
}

.section-header {
    border-left: 4px solid var(--safety-orange);
    padding-left: 1rem;
    background: linear-gradient(90deg, rgba(255,107,53,0.1), transparent);
    margin-bottom: 1rem;
}

.safety-badge {
    display: inline-flex;
    align-items: center;
    background: var(--safety-green);
    color: white;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: 20px;
    font-size: 0.9em;
    font-weight: 600;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-fast);
}

.safety-badge:hover {
    transform: scale(1.05);
    box-shadow: var(--shadow-md);
}

.warning-badge {
    display: inline-flex;
    align-items: center;
    background: var(--safety-yellow);
    color: #333;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: 20px;
    font-size: 0.9em;
    font-weight: 600;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-fast);
}

.warning-badge:hover {
    transform: scale(1.05);
    box-shadow: var(--shadow-md);
}

.critical-badge {
    display: inline-flex;
    align-items: center;
    background: var(--caution-red);
    color: white;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: 20px;
    font-size: 0.9em;
    font-weight: 600;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-fast);
}

.critical-badge:hover {
    transform: scale(1.05);
    box-shadow: var(--shadow-md);
}

/* Table styling for courses */
table {
    border-collapse: collapse;
    width: 100%;
    margin-top: 1rem;
}

th {
    background: var(--safety-orange);
    color: white;
    padding: 0.8rem;
    text-align: left;
}

td {
    padding: 0.8rem;
    border-bottom: 1px solid #ddd;
}

tr:nth-child(even) {
    background-color: rgba(255,107,53,0.1);
}

/* Content table specific styling */
.content-table {
    border: 2px solid var(--safety-orange);
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
}

.content-table thead th {
    background: linear-gradient(135deg, var(--safety-orange), var(--safety-blue));
    font-size: 1.3em;
    text-align: center;
    padding: 1rem;
}

.content-table tbody tr {
    border-bottom: 2px solid #ddd;
}

.content-table tbody tr:hover {
    background-color: rgba(255,107,53,0.15);
}

.content-table td.section-header {
    width: 30%;
    vertical-align: top;
    background: linear-gradient(90deg, rgba(255,107,53,0.15), transparent);
    font-weight: bold;
}

.content-table td.section-header h2 {
    margin: 0;
    font-size: 1.1em;
}

.content-table td:not(.section-header) {
    width: 70%;
    vertical-align: top;
}

/* Service list styling */
.service-list li {
    background: rgba(6,167,125,0.1);
    margin: 0.5rem 0;
    padding: 0.8rem;
    border-left: 3px solid var(--safety-green);
    border-radius: 3px;
}

/* Responsive Design - Mobile First Approach */
@media (max-width: 768px) {
    /* Adjust header for mobile */
    .header-container {
        flex-direction: column;
        gap: var(--spacing-sm);
    }
    
    .logo {
        height: 50px;
    }
    
    nav {
        width: 100%;
    }
    
    /* Adjust page title for mobile */
    .page-title {
        font-size: 1.8rem;
        flex-direction: column;
    }
    
    /* Stack grid items on mobile */
    .content-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }
    
    /* Adjust main padding */
    main {
        padding: var(--spacing-sm);
    }
    
    /* Adjust navigation for mobile */
    nav ul {
        flex-direction: column;
        align-items: center;
    }
    
    nav ul li {
        width: 100%;
        text-align: center;
    }
    
    nav ul li a {
        width: 100%;
        justify-content: center;
    }
    
    /* Adjust card header font size */
    .card-header h2 {
        font-size: 1.2rem;
    }
    
    /* Make info items stack better on mobile */
    .info-item {
        flex-direction: column;
        align-items: flex-start;
    }
    
    /* Adjust badge container */
    .badge-container {
        justify-content: center;
    }
}

@media (max-width: 480px) {
    /* Further adjustments for very small screens */
    .page-title {
        font-size: 1.5rem;
    }
    
    .card-content {
        padding: var(--spacing-sm);
    }
    
    .card-header {
        padding: var(--spacing-sm);
    }
    
    /* Adjust grid minimum width */
    .content-grid {
        grid-template-columns: 1fr;
    }
}

@media (min-width: 769px) and (max-width: 1024px) {
    /* Tablet adjustments */
    .content-grid {
        grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    }
}

@media (min-width: 1025px) {
    /* Desktop enhancements */
    .content-grid {
        grid-template-columns: repeat(auto-fit, minmax(450px, 1fr));
    }
}

/* Accessibility Improvements */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Focus styles for accessibility */
a:focus,
button:focus {
    outline: 3px solid var(--safety-orange);
    outline-offset: 2px;
}

/* Print styles */
@media print {
    header,
    footer {
        position: static;
    }
    
    .info-card {
        break-inside: avoid;
        page-break-inside: avoid;
    }
    
    body {
        background: white;
    }
    
    main {
        background: white;
    }
}