/* 
 * Hong Kong Labor Insight - Main Stylesheet
 * Professional analytical research publication
 */

/* Import Poppins Font */
@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@300;400;600;700&display=swap');

/* CSS Variables for Color Scheme */
:root {
    --primary-green: #2d7a3e;
    --primary-green-hover: #1f5a2c;
    --light-green: #4a9d5f;
    --dark-gray: #2c3e50;
    --medium-gray: #4a5568;
    --light-gray: #e2e8f0;
    --lighter-gray: #f7fafc;
    --text-dark: #1a202c;
    --text-medium: #4a5568;
    --text-light: #718096;
    --white: #ffffff;
    --shadow: rgba(0, 0, 0, 0.1);
    --shadow-hover: rgba(0, 0, 0, 0.15);
    --border-radius: 12px;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Poppins', sans-serif;
    font-weight: 300;
    line-height: 1.7;
    color: var(--text-dark);
    background-color: var(--white);
    overflow-x: hidden;
}

p, li {
    font-weight: 400;
    font-size: 16px;
    line-height: 1.8;
    color: var(--text-medium);
}

h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    color: var(--dark-gray);
    line-height: 1.3;
    margin-bottom: 1rem;
}

h1 {
    font-size: 2.8rem;
}

h2 {
    font-size: 2.2rem;
}

h3 {
    font-size: 1.8rem;
}

h4 {
    font-size: 1.4rem;
}

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

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

img {
    max-width: 100%;
    height: auto;
    display: block;
}

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

.container-wide {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header and Navigation */
header {
    background-color: var(--white);
    box-shadow: 0 2px 10px var(--shadow);
    position: sticky;
    top: 0;
    z-index: 1000;
}

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

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

.logo-text {
    font-size: 1.4rem;
    font-weight: 600;
    color: var(--dark-gray);
}

.logo-icon {
    width: 45px;
    height: 45px;
    background: linear-gradient(135deg, var(--primary-green), var(--light-green));
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-weight: 700;
    font-size: 1.2rem;
}

nav ul {
    list-style: none;
    display: flex;
    gap: 2rem;
    align-items: center;
}

nav ul li a {
    color: var(--text-medium);
    font-weight: 400;
    transition: color 0.3s ease;
}

nav ul li a:hover,
nav ul li a.active {
    color: var(--primary-green);
}

/* Mobile Menu Toggle */
.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 1.8rem;
    color: var(--dark-gray);
    cursor: pointer;
}

/* Hero Section */
.hero {
    position: relative;
    min-height: 600px;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: var(--white);
    background: linear-gradient(135deg, rgba(45, 122, 62, 0.9), rgba(31, 90, 44, 0.85)), 
                url('https://images.unsplash.com/photo-1536257104079-aa99c6460a5a?w=1600&h=900&fit=crop') center/cover;
    background-attachment: fixed;
}

.hero-content {
    max-width: 800px;
    padding: 3rem 1.5rem;
}

.hero h1 {
    color: var(--white);
    font-size: 3.5rem;
    margin-bottom: 1.5rem;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.hero .tagline {
    font-size: 1.3rem;
    font-weight: 300;
    margin-bottom: 2.5rem;
    color: rgba(255, 255, 255, 0.95);
}

.hero-buttons {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
    flex-wrap: wrap;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.9rem 2rem;
    border-radius: var(--border-radius);
    font-weight: 400;
    transition: all 0.3s ease;
    cursor: pointer;
    border: none;
    font-size: 1rem;
    text-align: center;
}

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

.btn-primary:hover {
    background-color: var(--primary-green-hover);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(45, 122, 62, 0.3);
}

.btn-secondary {
    background-color: transparent;
    color: var(--white);
    border: 2px solid var(--white);
}

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

.btn-outline {
    background-color: transparent;
    color: var(--primary-green);
    border: 2px solid var(--primary-green);
}

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

/* Section Styles */
section {
    padding: 5rem 0;
}

.section-title {
    text-align: center;
    margin-bottom: 3rem;
}

.section-title h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.section-title p {
    font-size: 1.1rem;
    color: var(--text-light);
    max-width: 700px;
    margin: 0 auto;
}

/* Cards */
.cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.card {
    background-color: var(--white);
    border-radius: var(--border-radius);
    padding: 2rem;
    box-shadow: 0 4px 15px var(--shadow);
    transition: all 0.3s ease;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px var(--shadow-hover);
}

.card-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--primary-green), var(--light-green));
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 1.8rem;
    margin-bottom: 1.5rem;
}

.card h3 {
    margin-bottom: 1rem;
    color: var(--dark-gray);
}

.card p {
    color: var(--text-medium);
    line-height: 1.7;
}

.card img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    border-radius: var(--border-radius);
    margin-bottom: 1.5rem;
}

/* Blog Card */
.blog-card {
    background: var(--white);
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: 0 4px 15px var(--shadow);
    transition: all 0.3s ease;
}

.blog-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px var(--shadow-hover);
}

.blog-card-image {
    width: 100%;
    height: 240px;
    object-fit: cover;
}

.blog-card-content {
    padding: 1.8rem;
}

.blog-card-meta {
    display: flex;
    gap: 1rem;
    margin-bottom: 1rem;
    font-size: 0.9rem;
    color: var(--text-light);
}

.blog-card-meta span {
    display: flex;
    align-items: center;
    gap: 0.4rem;
}

.blog-card h3 {
    margin-bottom: 1rem;
    font-size: 1.5rem;
}

.blog-card p {
    margin-bottom: 1.5rem;
    color: var(--text-medium);
}

/* Statistics Section */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    text-align: center;
}

.stat-item {
    padding: 2rem;
}

.stat-number {
    font-size: 3rem;
    font-weight: 700;
    color: var(--primary-green);
    margin-bottom: 0.5rem;
}

.stat-label {
    font-size: 1.1rem;
    color: var(--text-medium);
}

/* CTA Section */
.cta-section {
    background: linear-gradient(135deg, var(--primary-green), var(--light-green));
    color: var(--white);
    text-align: center;
    padding: 5rem 2rem;
    border-radius: var(--border-radius);
    margin: 3rem 0;
}

.cta-section h2 {
    color: var(--white);
    margin-bottom: 1.5rem;
}

.cta-section p {
    color: rgba(255, 255, 255, 0.95);
    font-size: 1.2rem;
    margin-bottom: 2rem;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

/* Contact Form */
.contact-form {
    background: var(--white);
    border-radius: var(--border-radius);
    padding: 2.5rem;
    box-shadow: 0 4px 15px var(--shadow);
}

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

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 400;
    color: var(--dark-gray);
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 0.9rem;
    border: 1px solid var(--light-gray);
    border-radius: 8px;
    font-family: 'Poppins', sans-serif;
    font-size: 1rem;
    transition: border-color 0.3s ease;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-green);
}

.form-group textarea {
    resize: vertical;
    min-height: 150px;
}

/* Contact Info */
.contact-info {
    display: grid;
    gap: 2rem;
}

.contact-item {
    display: flex;
    gap: 1.5rem;
    align-items: start;
}

.contact-icon {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--primary-green), var(--light-green));
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 1.3rem;
    flex-shrink: 0;
}

.contact-details h4 {
    margin-bottom: 0.5rem;
}

.contact-details p {
    color: var(--text-medium);
}

/* Map Container */
.map-container {
    width: 100%;
    height: 400px;
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: 0 4px 15px var(--shadow);
    margin: 2rem 0;
}

.map-container iframe {
    width: 100%;
    height: 100%;
    border: none;
}

/* Blog Article */
.article-header {
    text-align: center;
    max-width: 800px;
    margin: 0 auto 3rem;
}

.article-meta {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin: 1.5rem 0;
    font-size: 0.95rem;
    color: var(--text-light);
    flex-wrap: wrap;
}

.article-image {
    width: 100%;
    max-width: 1000px;
    height: 500px;
    object-fit: cover;
    border-radius: var(--border-radius);
    margin: 2rem auto;
    box-shadow: 0 4px 15px var(--shadow);
}

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

.article-content h2 {
    margin-top: 2.5rem;
    margin-bottom: 1rem;
}

.article-content h3 {
    margin-top: 2rem;
    margin-bottom: 1rem;
}

.article-content p {
    margin-bottom: 1.5rem;
    line-height: 1.9;
}

.article-content ul,
.article-content ol {
    margin: 1.5rem 0;
    padding-left: 2rem;
}

.article-content li {
    margin-bottom: 0.8rem;
}

.article-content blockquote {
    border-left: 4px solid var(--primary-green);
    padding-left: 1.5rem;
    margin: 2rem 0;
    font-style: italic;
    color: var(--text-medium);
}

/* FAQ Section */
.faq-item {
    background: var(--white);
    border-radius: var(--border-radius);
    padding: 1.5rem;
    margin-bottom: 1.5rem;
    box-shadow: 0 4px 15px var(--shadow);
}

.faq-question {
    font-weight: 600;
    color: var(--dark-gray);
    margin-bottom: 1rem;
    font-size: 1.2rem;
}

.faq-answer {
    color: var(--text-medium);
    line-height: 1.8;
}

/* Resources List */
.resources-list {
    display: grid;
    gap: 2rem;
}

.resource-item {
    background: var(--white);
    border-radius: var(--border-radius);
    padding: 2rem;
    box-shadow: 0 4px 15px var(--shadow);
    transition: all 0.3s ease;
}

.resource-item:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px var(--shadow-hover);
}

.resource-item h3 {
    color: var(--primary-green);
    margin-bottom: 1rem;
}

.resource-item p {
    margin-bottom: 1rem;
}

.resource-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--primary-green);
    font-weight: 400;
}

/* Footer */
footer {
    background-color: var(--dark-gray);
    color: var(--light-gray);
    padding: 3rem 0 1.5rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 3rem;
    margin-bottom: 2rem;
}

.footer-section h3 {
    color: var(--white);
    margin-bottom: 1.5rem;
    font-size: 1.3rem;
}

.footer-section p,
.footer-section li {
    color: var(--light-gray);
    margin-bottom: 0.8rem;
    font-size: 0.95rem;
}

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

.footer-section ul li a {
    color: var(--light-gray);
    transition: color 0.3s ease;
}

.footer-section ul li a:hover {
    color: var(--white);
}

.social-links {
    display: flex;
    gap: 1rem;
    margin-top: 1rem;
}

.social-link {
    width: 40px;
    height: 40px;
    background-color: var(--medium-gray);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    transition: all 0.3s ease;
}

.social-link:hover {
    background-color: var(--primary-green);
    transform: translateY(-3px);
}

.footer-bottom {
    border-top: 1px solid var(--medium-gray);
    padding-top: 2rem;
    text-align: center;
    color: var(--light-gray);
    font-size: 0.9rem;
}

/* Cookie Banner */
.cookie-banner {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background-color: var(--dark-gray);
    color: var(--white);
    padding: 1.5rem;
    box-shadow: 0 -4px 15px var(--shadow);
    z-index: 9999;
    display: none;
}

.cookie-banner.show {
    display: block;
}

.cookie-content {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 2rem;
    flex-wrap: wrap;
}

.cookie-text {
    flex: 1;
    min-width: 300px;
}

.cookie-text p {
    color: var(--light-gray);
    margin-bottom: 0.5rem;
}

.cookie-text a {
    color: var(--light-green);
}

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

/* Back to Top Button */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background-color: var(--primary-green);
    color: var(--white);
    border: none;
    border-radius: 50%;
    font-size: 1.5rem;
    cursor: pointer;
    display: none;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 15px var(--shadow);
    transition: all 0.3s ease;
    z-index: 999;
}

.back-to-top.show {
    display: flex;
}

.back-to-top:hover {
    background-color: var(--primary-green-hover);
    transform: translateY(-3px);
}

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

.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; }

.bg-light {
    background-color: var(--lighter-gray);
}

/* Responsive Design */
@media (max-width: 1024px) {
    .cards-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    h1 {
        font-size: 2.3rem;
    }
    
    .hero h1 {
        font-size: 2.8rem;
    }
}

@media (max-width: 768px) {
    /* Mobile Menu */
    .mobile-menu-toggle {
        display: block;
    }
    
    nav ul {
        position: fixed;
        top: 70px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 70px);
        background-color: var(--white);
        flex-direction: column;
        padding: 2rem;
        transition: left 0.3s ease;
        box-shadow: 0 4px 10px var(--shadow);
    }
    
    nav ul.active {
        left: 0;
    }
    
    nav ul li {
        width: 100%;
        text-align: center;
    }
    
    nav ul li a {
        display: block;
        padding: 1rem;
    }
    
    /* Cards - 1 column on mobile */
    .cards-grid {
        grid-template-columns: 1fr;
    }
    
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .hero h1 {
        font-size: 2.2rem;
    }
    
    .hero .tagline {
        font-size: 1.1rem;
    }
    
    h1 {
        font-size: 2rem;
    }
    
    h2 {
        font-size: 1.8rem;
    }
    
    .section-title h2 {
        font-size: 2rem;
    }
    
    .hero-buttons {
        flex-direction: column;
        width: 100%;
    }
    
    .hero-buttons .btn {
        width: 100%;
    }
    
    .cookie-content {
        flex-direction: column;
        text-align: center;
    }
    
    .cookie-buttons {
        width: 100%;
        flex-direction: column;
    }
    
    .cookie-buttons .btn {
        width: 100%;
    }
    
    .article-image {
        height: 300px;
    }
}

@media (max-width: 480px) {
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .stat-number {
        font-size: 2.5rem;
    }
    
    .hero {
        min-height: 500px;
    }
    
    section {
        padding: 3rem 0;
    }
}

/* Print Styles */
@media print {
    header,
    footer,
    .cookie-banner,
    .back-to-top,
    .hero-buttons,
    .cta-section {
        display: none;
    }
    
    body {
        font-size: 12pt;
        line-height: 1.5;
    }
}