/* Author Page Styles */

/* CSS Variables */
:root {
    --primary-dark: #1a2332;
    --primary-blue: #3498db;
    --primary-green: #28a745;
    --accent-orange: #ff9800;
    --bg-light: #f8f9fa;
    --text-dark: #333;
    --text-light: #666;
    --border-color: #dee2e6;
    --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);
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    line-height: 1.6;
    color: var(--text-dark);
    background: #fff;
}

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

/* Header */
header {
    background: #fff;
    color: #fff;
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: var(--shadow-md);
}

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

.logo a {
    text-decoration: none;
    color: #fff;
}

.logo h1 {
    font-size: 1.5rem;
    font-weight: 700;
}

.logo img {
  height: 40px;
}

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

nav a {
    color: #000;
    text-decoration: none;
    font-weight: 500;
    font-size: 0.9rem;
    transition: color 0.3s ease;
}

nav a:hover,
nav a.active {
    color: #000;
}

.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    color: #000000;
    font-size: 1.5rem;
    cursor: pointer;
}

/* Author Hero Section */
.author-hero {
    background: linear-gradient(135deg, #000000 0%, #076200 100%);
    color: #fff;
    padding: 4rem 0;
}

.author-hero-content {
    display: flex;
    align-items: center;
    gap: 3rem;
}

.author-image {
    flex-shrink: 0;
}

.author-image img {
    width: 200px;
    height: 200px;
    border-radius: 50%;
    border: 5px solid var(--primary-green);
    box-shadow: var(--shadow-lg);
}

.author-details h1 {
    font-size: 3rem;
    margin-bottom: 0.5rem;
}

.author-title {
    font-size: 1.3rem;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 1.5rem;
}

.author-meta {
    display: flex;
    gap: 2rem;
    margin-bottom: 1.5rem;
    flex-wrap: wrap;
}

.author-meta span {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.95rem;
}

.author-meta i {
    color: var(--primary-green);
}

.author-social {
    display: flex;
    gap: 1rem;
}

.author-social a {
    width: 45px;
    height: 45px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 1.2rem;
    transition: all 0.3s ease;
}

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

/* About Section */
.about-section {
    padding: 4rem 0;
    background: #fff;
}

.about-section h2 {
    font-size: 2.5rem;
    margin-bottom: 2rem;
    color: var(--primary-dark);
    text-align: center;
}

.about-content {
    max-width: 900px;
    margin: 0 auto;
}

.about-content p {
    font-size: 1.1rem;
    line-height: 1.8;
    color: var(--text-light);
    margin-bottom: 1.5rem;
}

/* Expertise Section */
.expertise-section {
    padding: 4rem 0;
    background: var(--bg-light);
}

.expertise-section h2 {
    font-size: 2.5rem;
    margin-bottom: 3rem;
    color: var(--primary-dark);
    text-align: center;
}

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

.expertise-card {
    background: #fff;
    padding: 2rem;
    border-radius: 12px;
    text-align: center;
    box-shadow: var(--shadow-md);
    transition: all 0.3s ease;
}

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

.expertise-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 1.5rem;
    background: linear-gradient(135deg, var(--primary-blue), var(--primary-green));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 2rem;
}

.expertise-card h3 {
    font-size: 1.3rem;
    margin-bottom: 1rem;
    color: var(--primary-dark);
}

.expertise-card p {
    color: var(--text-light);
    line-height: 1.6;
}

/* Statistics Section */
.stats-section {
    padding: 4rem 0;
    background: #000000;
    color: #fff;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
}

.stat-card {
    text-align: center;
    padding: 2rem;
}

.stat-number {
    font-size: 4rem;
    font-weight: 700;
    color: var(--primary-green);
    margin-bottom: 0.5rem;
}

.stat-label {
    font-size: 1.1rem;
    color: rgba(255, 255, 255, 0.9);
}

/* Achievements Section */
.achievements-section {
    padding: 4rem 0;
    background: #fff;
}

.achievements-section h2 {
    font-size: 2.5rem;
    margin-bottom: 3rem;
    color: var(--primary-dark);
    text-align: center;
}

.achievements-list {
    max-width: 900px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.achievement-item {
    display: flex;
    align-items: flex-start;
    gap: 2rem;
    padding: 2rem;
    background: var(--bg-light);
    border-radius: 12px;
    transition: all 0.3s ease;
}

.achievement-item:hover {
    transform: translateX(10px);
    box-shadow: var(--shadow-md);
}

.achievement-item i {
    font-size: 2.5rem;
    color: var(--primary-green);
    flex-shrink: 0;
}

.achievement-item h3 {
    font-size: 1.3rem;
    margin-bottom: 0.5rem;
    color: var(--primary-dark);
}

.achievement-item p {
    color: var(--text-light);
    line-height: 1.6;
}

/* Methodology Section */
.methodology-section {
    padding: 4rem 0;
    background: var(--bg-light);
}

.methodology-section h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    color: var(--primary-dark);
    text-align: center;
}

.methodology-intro {
    text-align: center;
    font-size: 1.1rem;
    color: var(--text-light);
    margin-bottom: 3rem;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.methodology-timeline {
    max-width: 900px;
    margin: 0 auto;
    position: relative;
}

.methodology-timeline::before {
    content: '';
    position: absolute;
    left: 30px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--primary-green);
}

.timeline-item {
    display: flex;
    gap: 2rem;
    margin-bottom: 3rem;
    position: relative;
}

.timeline-number {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: var(--primary-green);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
    flex-shrink: 0;
    box-shadow: var(--shadow-md);
}

.timeline-content {
    flex: 1;
    background: #fff;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: var(--shadow-md);
}

.timeline-content h3 {
    font-size: 1.3rem;
    margin-bottom: 0.5rem;
    color: var(--primary-dark);
}

.timeline-content p {
    color: var(--text-light);
    line-height: 1.6;
}

/* Articles Section */
.articles-section {
    padding: 4rem 0;
    background: #fff;
}

.articles-section h2 {
    font-size: 2.5rem;
    margin-bottom: 3rem;
    color: var(--primary-dark);
    text-align: center;
}

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

.article-card {
    background: #fff;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: all 0.3s ease;
}

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

.article-image {
    position: relative;
    height: 200px;
    overflow: hidden;
}

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

.article-category {
    position: absolute;
    top: 1rem;
    left: 1rem;
    background: var(--primary-green);
    color: #fff;
    padding: 0.4rem 1rem;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
}

.article-content {
    padding: 1.5rem;
}

.article-content h3 {
    font-size: 1.2rem;
    margin-bottom: 1rem;
    color: var(--primary-dark);
}

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

.article-meta {
    display: flex;
    gap: 1.5rem;
    margin-bottom: 1rem;
    font-size: 0.85rem;
    color: var(--text-light);
}

.article-meta span {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.article-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--primary-blue);
    text-decoration: none;
    font-weight: 600;
    transition: color 0.3s ease;
}

.article-link:hover {
    color: var(--primary-green);
}

/* Contact Section */
.contact-section {
    padding: 4rem 0;
    background: var(--bg-light);
}

.contact-section h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    color: var(--primary-dark);
    text-align: center;
}

.contact-intro {
    text-align: center;
    font-size: 1.1rem;
    color: var(--text-light);
    margin-bottom: 3rem;
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 3rem;
    max-width: 1000px;
    margin: 0 auto;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.contact-item {
    display: flex;
    gap: 1.5rem;
    padding: 1.5rem;
    background: #fff;
    border-radius: 12px;
    box-shadow: var(--shadow-sm);
}

.contact-item i {
    font-size: 2rem;
    color: var(--primary-green);
    flex-shrink: 0;
}

.contact-item h3 {
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
    color: var(--primary-dark);
}

.contact-item p {
    color: var(--text-light);
}

.contact-form {
    background: #fff;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: var(--shadow-md);
}

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

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

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

.submit-btn {
    width: 100%;
    padding: 1rem 2rem;
    background: var(--primary-green);
    color: #fff;
    border: none;
    border-radius: 8px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.submit-btn:hover {
    background: #218838;
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(40, 167, 69, 0.3);
}

/* Footer */
footer {
    background: #ffffff;
    color: #000000;
    padding: 3rem 0 1rem;
}

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

.footer-section h4 {
    margin-bottom: 1rem;
    font-size: 1.2rem;
}

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

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

.footer-section a {
    color: rgb(0, 0, 0);
    text-decoration: none;
    transition: color 0.3s ease;
}

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

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

.social-links a {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: rgb(0, 255, 8);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
}

.social-links a:hover {
    background: #ffffff;
    transform: translateY(-3px);
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-bottom p {
    margin: 0.5rem 0;
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.9rem;
}

/* Back to Top */
.back-to-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 50px;
    height: 50px;
    background: var(--primary-green);
    color: #fff;
    border: none;
    border-radius: 50%;
    cursor: pointer;
    display: none;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-lg);
    transition: all 0.3s ease;
    z-index: 999;
}

.back-to-top:hover {
    background: #218838;
    transform: translateY(-5px);
}

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

/* Responsive Design */
@media (max-width: 768px) {
    .mobile-menu-toggle {
        display: block;
    }

    nav {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: #fff;
        flex-direction: column;
        padding: 1rem;
        gap: 1rem;
        box-shadow: var(--shadow-md);
    }

    nav.active {
        display: flex;
    }

    .author-hero-content {
        flex-direction: column;
        text-align: center;
    }

    .author-details h1 {
        font-size: 2rem;
    }

    .author-meta {
        justify-content: center;
    }

    .author-social {
        justify-content: center;
    }

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

    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .methodology-timeline::before {
        left: 20px;
    }

    .timeline-number {
        width: 40px;
        height: 40px;
        font-size: 1.2rem;
    }

    .timeline-item {
        gap: 1rem;
    }

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

    .contact-content {
        grid-template-columns: 1fr;
    }

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

@media (max-width: 480px) {
    .author-image img {
        width: 150px;
        height: 150px;
    }

    .author-details h1 {
        font-size: 1.8rem;
    }

    .stat-number {
        font-size: 3rem;
    }

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