/* ========================================
   MATTHEW JENNINGS - PROFESSIONAL SITE
   Modern, Clean, Professional Design
   ======================================== */

:root {
    --primary: #2c3e50;      /* Deep blue-gray */
    --secondary: #3498db;    /* Professional blue */
    --accent: #e74c3c;       /* Accent red */
    --dark: #1a1a1a;
    --light: #ffffff;
    --gray: #7f8c8d;
    --bg-light: #f8f9fa;
    --border: #e0e0e0;
    --success: #27ae60;
}

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    color: var(--dark);
    line-height: 1.6;
    background: var(--light);
}

/* ========================================
   HEADER & NAVIGATION
   ======================================== */

.site-header {
    background: var(--light);
    border-bottom: 1px solid var(--border);
    padding: 20px 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
}

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

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

.logo {
    font-size: 24px;
    font-weight: 700;
    color: var(--primary);
    text-decoration: none;
}

.main-nav ul {
    display: flex;
    list-style: none;
    gap: 30px;
}

.main-nav a {
    color: var(--dark);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s;
}

.main-nav a:hover {
    color: var(--secondary);
}

.btn {
    display: inline-block;
    padding: 12px 28px;
    border-radius: 5px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s;
    border: none;
    cursor: pointer;
}

.btn-primary {
    background: var(--secondary);
    color: var(--light);
}

.btn-primary:hover {
    background: #2980b9;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(52, 152, 219, 0.3);
}

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

.btn-secondary:hover {
    background: var(--secondary);
    color: var(--light);
}

/* ========================================
   HERO SECTION
   ======================================== */

.hero {
    background: linear-gradient(135deg, var(--primary) 0%, #34495e 100%);
    color: var(--light);
    padding: 100px 0;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg width="100" height="100" xmlns="http://www.w3.org/2000/svg"><defs><pattern id="grid" width="100" height="100" patternUnits="userSpaceOnUse"><path d="M 100 0 L 0 0 0 100" fill="none" stroke="rgba(255,255,255,0.05)" stroke-width="1"/></pattern></defs><rect width="100%" height="100%" fill="url(%23grid)"/></svg>');
    opacity: 0.3;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-text h1 {
    font-size: 48px;
    margin-bottom: 20px;
    line-height: 1.2;
}

.hero-text .tagline {
    font-size: 20px;
    color: rgba(255,255,255,0.9);
    margin-bottom: 30px;
    font-weight: 300;
}

.hero-buttons {
    display: flex;
    gap: 15px;
    flex-wrap: wrap;
}

.hero-image {
    text-align: center;
}

.hero-image img {
    width: 350px;
    height: 350px;
    border-radius: 50%;
    object-fit: cover;
    border: 8px solid rgba(255,255,255,0.2);
    box-shadow: 0 20px 60px rgba(0,0,0,0.3);
}

/* ========================================
   SECTIONS
   ======================================== */

.section {
    padding: 80px 0;
}

.section-alt {
    background: var(--bg-light);
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-header h2 {
    font-size: 36px;
    color: var(--primary);
    margin-bottom: 15px;
}

.section-header p {
    font-size: 18px;
    color: var(--gray);
    max-width: 700px;
    margin: 0 auto;
}

/* ========================================
   ABOUT SECTION
   ======================================== */

.about-content {
    max-width: 900px;
    margin: 0 auto;
    font-size: 18px;
    line-height: 1.8;
}

.about-content p {
    margin-bottom: 20px;
}

.credentials {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.credential-card {
    background: var(--light);
    padding: 25px;
    border-radius: 8px;
    border: 2px solid var(--border);
    text-align: center;
    transition: transform 0.3s, box-shadow 0.3s;
}

.credential-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
}

.credential-card .icon {
    font-size: 40px;
    margin-bottom: 15px;
}

.credential-card h3 {
    font-size: 18px;
    color: var(--primary);
    margin-bottom: 10px;
}

/* ========================================
   SPEAKING TOPICS
   ======================================== */

.topics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.topic-card {
    background: var(--light);
    padding: 30px;
    border-radius: 8px;
    border-left: 4px solid var(--secondary);
    box-shadow: 0 4px 15px rgba(0,0,0,0.08);
    transition: transform 0.3s;
}

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

.topic-card h3 {
    font-size: 22px;
    color: var(--primary);
    margin-bottom: 15px;
}

.topic-card p {
    color: var(--gray);
    line-height: 1.6;
}

/* ========================================
   VIDEOS SECTION
   ======================================== */

.video-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 30px;
}

.video-card {
    background: var(--light);
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 4px 15px rgba(0,0,0,0.08);
    transition: transform 0.3s;
}

.video-card:hover {
    transform: translateY(-5px);
}

.video-thumbnail {
    width: 100%;
    height: 180px;
    background: var(--bg-light);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}

.video-thumbnail::after {
    content: '▶';
    font-size: 48px;
    color: var(--secondary);
}

.video-info {
    padding: 20px;
}

.video-info h3 {
    font-size: 18px;
    margin-bottom: 10px;
    color: var(--primary);
}

.video-badge {
    display: inline-block;
    padding: 4px 12px;
    background: var(--success);
    color: var(--light);
    border-radius: 15px;
    font-size: 12px;
    font-weight: 600;
}

.video-badge.premium {
    background: var(--accent);
}

/* ========================================
   TESTIMONIALS
   ======================================== */

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.testimonial-card {
    background: var(--light);
    padding: 30px;
    border-radius: 8px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.08);
    position: relative;
}

.testimonial-card::before {
    content: '"';
    font-size: 80px;
    color: var(--secondary);
    opacity: 0.2;
    position: absolute;
    top: 10px;
    left: 20px;
    line-height: 1;
}

.testimonial-text {
    font-style: italic;
    color: var(--dark);
    margin-bottom: 20px;
    position: relative;
    z-index: 1;
}

.testimonial-author {
    font-weight: 600;
    color: var(--primary);
}

.testimonial-role {
    font-size: 14px;
    color: var(--gray);
}

/* ========================================
   NEWSLETTER
   ======================================== */

.newsletter-box {
    background: linear-gradient(135deg, var(--secondary) 0%, #2980b9 100%);
    color: var(--light);
    padding: 60px;
    border-radius: 10px;
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.newsletter-box h2 {
    margin-bottom: 15px;
}

.newsletter-form {
    display: flex;
    gap: 10px;
    max-width: 500px;
    margin: 30px auto 0;
}

.newsletter-form input {
    flex: 1;
    padding: 15px;
    border: none;
    border-radius: 5px;
    font-size: 16px;
}

.newsletter-form button {
    padding: 15px 35px;
    background: var(--dark);
    color: var(--light);
    border: none;
    border-radius: 5px;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.3s;
}

.newsletter-form button:hover {
    background: #2c2c2c;
}

/* ========================================
   FOOTER
   ======================================== */

.site-footer {
    background: var(--primary);
    color: var(--light);
    padding: 60px 0 30px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

.footer-section h3 {
    margin-bottom: 20px;
}

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

.footer-section ul li {
    margin-bottom: 10px;
}

.footer-section a {
    color: rgba(255,255,255,0.8);
    text-decoration: none;
    transition: color 0.3s;
}

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

.social-links {
    display: flex;
    gap: 15px;
}

.social-links a {
    width: 40px;
    height: 40px;
    background: rgba(255,255,255,0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 0.3s;
}

.social-links a:hover {
    background: var(--secondary);
}

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid rgba(255,255,255,0.1);
    color: rgba(255,255,255,0.6);
}

/* ========================================
   RESPONSIVE
   ======================================== */

@media (max-width: 992px) {
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .hero-text h1 {
        font-size: 36px;
    }
    
    .hero-buttons {
        justify-content: center;
    }
}

@media (max-width: 768px) {
    .main-nav ul {
        flex-direction: column;
        gap: 15px;
    }
    
    .hero {
        padding: 60px 0;
    }
    
    .hero-image img {
        width: 250px;
        height: 250px;
    }
    
    .section {
        padding: 50px 0;
    }
    
    .newsletter-form {
        flex-direction: column;
    }
}