/* ===========================
   Warnes Innovations Website
   Expert Omics & Biostatistics Consulting
   =========================== */

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

:root {
    /* Color Palette */
    --primary-color: #6a3f9a;
    --primary-dark: #542f7d;
    --secondary-color: #27ae60;
    --accent-color: #e74c3c;
    --dark-blue: #2c3e50;
    --text-dark: #333;
    --text-muted: #666;
    --text-light: #888;
    --bg-light: #eef2f5;
    --bg-white: #ffffff;
    --border-color: #d1d8dd;
    
    /* Typography */
    --font-heading: 'Merriweather', serif;
    --font-body: 'Inter', sans-serif;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 3rem;
    --spacing-xl: 4rem;
    
    /* 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 25px rgba(0, 0, 0, 0.15);
    
    /* Transitions */
    --transition: all 0.3s ease;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    font-size: 16px;
    line-height: 1.6;
    color: var(--text-dark);
    background: var(--bg-white);
    overflow-x: hidden;
}

/* === Typography === */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.2;
    color: var(--dark-blue);
    margin-bottom: var(--spacing-sm);
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.25rem; }
h5 { font-size: 1.1rem; }
h6 { font-size: 1rem; }

p {
    margin-bottom: var(--spacing-sm);
}

a {
    color: var(--primary-color);
    text-decoration: none;
    transition: var(--transition);
}

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

/* === Container === */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* === Navigation === */
.navbar {
    position: sticky;
    top: 0;
    background: var(--bg-white);
    box-shadow: var(--shadow-md);
    z-index: 1000;
    padding: var(--spacing-sm) 0;
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 100%;
    padding: 0 var(--spacing-md);
    gap: var(--spacing-md);
}

.nav-brand {
    display: flex;
    align-items: center;
}

.nav-brand .logo {
    height: 50px;
    width: auto;
    border-radius: 8px;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: var(--spacing-md);
    align-items: center;
    margin: 0;
}

.nav-link {
    font-weight: 500;
    color: var(--text-dark);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: 4px;
    transition: var(--transition);
}

.nav-link:hover {
    background: var(--bg-light);
    color: var(--primary-color);
}

.nav-link.btn-primary {
    background: var(--primary-color);
    color: white;
    white-space: nowrap;
}

.nav-link.btn-primary:hover {
    background: var(--primary-dark);
    color: white;
}

/* === Hero Section === */
.hero {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: var(--spacing-xl) 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="20" height="20" patternUnits="userSpaceOnUse"><path d="M 20 0 L 0 0 0 20" fill="none" stroke="rgba(255,255,255,0.1)" stroke-width="1"/></pattern></defs><rect width="100" height="100" fill="url(%23grid)"/></svg>');
    opacity: 0.3;
}

.hero-content {
    position: relative;
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: var(--spacing-lg);
    align-items: center;
}

.hero-title {
    font-size: 3rem;
    font-weight: 900;
    color: white;
    margin-bottom: var(--spacing-sm);
}

.hero-title .highlight {
    color: #ffd700;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.hero-subtitle {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-md);
    opacity: 0.95;
}

.omics-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-xs);
    margin-bottom: var(--spacing-md);
}

.tag {
    background: rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 500;
}

.cta-buttons {
    display: flex;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
}

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

.profile-img {
    width: 100%;
    max-width: 400px;
    border-radius: 50%;
    border: 8px solid rgba(255, 255, 255, 0.3);
    box-shadow: var(--shadow-lg);
}

/* === Buttons === */
.btn {
    display: inline-block;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: 6px;
    font-weight: 600;
    text-align: center;
    cursor: pointer;
    transition: var(--transition);
    border: 2px solid transparent;
}

.btn-large {
    padding: 1rem 2rem;
    font-size: 1.1rem;
}

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

.btn-primary:hover {
    background: var(--primary-dark);
    color: white;
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-secondary {
    background: transparent;
    color: white;
    border-color: white;
}

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

/* === Value Proposition === */
.value-prop {
    background: var(--bg-light);
    padding: var(--spacing-lg) 0;
    text-align: center;
}

.section-title {
    font-size: 2.25rem;
    margin-bottom: var(--spacing-sm);
}

.section-title.center {
    text-align: center;
}

.section-subtitle {
    font-size: 1.15rem;
    color: var(--text-muted);
    max-width: 700px;
    margin: 0 auto;
}

.section-subtitle.center {
    text-align: center;
}

/* === Services Section === */
.services {
    padding: var(--spacing-xl) 0;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.service-card {
    background: white;
    padding: var(--spacing-md);
    border-radius: 12px;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    border: 1px solid var(--border-color);
}

.service-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-color);
}

.service-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-sm);
}

.service-icon i {
    font-size: 1.75rem;
    color: white;
}

.service-card h3 {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-sm);
    color: var(--dark-blue);
}

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

/* === About Section === */
.about {
    background: var(--bg-light);
    padding: var(--spacing-xl) 0;
}

.about-content {
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: var(--spacing-lg);
    align-items: center;
}

.about-text .subtitle {
    color: var(--primary-color);
    font-size: 1.5rem;
    margin-bottom: var(--spacing-md);
}

.credential-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.credential {
    display: flex;
    gap: var(--spacing-sm);
    background: white;
    padding: var(--spacing-sm);
    border-radius: 8px;
    box-shadow: var(--shadow-sm);
}

.credential i {
    font-size: 2rem;
    color: var(--primary-color);
    min-width: 40px;
}

.credential strong {
    display: block;
    color: var(--dark-blue);
    margin-bottom: 0.25rem;
}

.credential p {
    color: var(--text-muted);
    font-size: 0.95rem;
    margin: 0;
}

.about-image img {
    width: 100%;
    max-width: 400px;
    border-radius: 12px;
    box-shadow: var(--shadow-lg);
}

/* === Expertise Section === */
.expertise {
    padding: var(--spacing-xl) 0;
}

.expertise-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.expertise-category {
    background: white;
    padding: var(--spacing-md);
    border-radius: 12px;
    box-shadow: var(--shadow-sm);
    border-left: 4px solid var(--primary-color);
    align-self: start;
}

.expertise-category h3 {
    color: var(--dark-blue);
    margin-bottom: var(--spacing-sm);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.expertise-category h3 i {
    color: var(--primary-color);
}

.expertise-category ul {
    list-style: none;
}

.expertise-category li {
    padding: var(--spacing-xs) 0;
    padding-left: 1.5rem;
    position: relative;
    color: var(--text-muted);
}

.expertise-category li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--secondary-color);
    font-weight: bold;
}

/* === Visualizations Gallery === */
.visualizations {
    padding: var(--spacing-xl) 0;
    background: var(--bg-white);
}

.viz-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.viz-card {
    background: white;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
    border: 1px solid var(--border-color);
}

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

.viz-image {
    width: 100%;
    height: 250px;
    object-fit: cover;
    background: var(--bg-light);
    display: flex;
    align-items: center;
    justify-content: center;
}

.viz-placeholder {
    width: 100%;
    height: 250px;
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: var(--primary-color);
    gap: var(--spacing-sm);
}

.viz-placeholder i {
    opacity: 0.7;
}

.viz-placeholder p {
    font-weight: 600;
    color: var(--text-muted);
    margin: 0;
}

.viz-caption {
    padding: var(--spacing-sm);
}

.viz-caption h4 {
    color: var(--dark-blue);
    font-size: 1.1rem;
    margin-bottom: var(--spacing-xs);
}

.viz-caption p {
    color: var(--text-muted);
    font-size: 0.95rem;
    line-height: 1.5;
    margin: 0;
}

.viz-caption p.citation {
    margin-top: var(--spacing-xs);
    padding-top: var(--spacing-xs);
    border-top: 1px solid var(--border-color);
    font-size: 0.85rem;
    line-height: 1.4;
}

.viz-caption .citation a {
    color: var(--primary-color);
    font-weight: 500;
}

.viz-caption .citation a:hover {
    color: var(--primary-dark);
    text-decoration: underline;
}

.viz-note {
    margin-top: var(--spacing-lg);
    padding: var(--spacing-sm) var(--spacing-md);
    background: #fff3cd;
    border-left: 4px solid #ffc107;
    border-radius: 4px;
}

.viz-note p {
    color: #856404;
    font-size: 0.95rem;
    margin: 0;
    line-height: 1.6;
}

.viz-note a {
    color: #856404;
    text-decoration: underline;
    font-weight: 600;
}

.viz-note a:hover {
    color: #533f03;
}

/* === Testimonial Section === */
.testimonial {
    background: linear-gradient(135deg, var(--dark-blue), var(--primary-color));
    color: white;
    padding: var(--spacing-xl) 0;
    text-align: center;
}

.testimonial-content {
    max-width: 1200px;
    margin: 0 auto;
}

.quote-icon {
    font-size: 3rem;
    opacity: 0.5;
    margin-bottom: var(--spacing-sm);
}

blockquote p {
    font-size: 1.5rem;
    font-style: italic;
    margin-bottom: var(--spacing-lg);
}

.stats {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.stat {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-xs);
}

.stat a {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-xs);
}

.stat-number {
    font-size: 3rem;
    font-weight: 900;
    color: #ffd700;
}

.stat-label {
    font-size: 1rem;
    opacity: 0.9;
    white-space: nowrap;
}

/* === Contact Section === */
.contact {
    padding: var(--spacing-xl) 0;
    background: var(--bg-light);
}

/* === Publications Section === */
.publications {
    padding: var(--spacing-xl) 0;
    background: white;
}

.pub-category {
    margin-bottom: var(--spacing-lg);
}

.pub-category h3 {
    color: var(--dark-blue);
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-xs);
    border-bottom: 3px solid var(--primary-color);
    font-size: 1.5rem;
}

.pub-category h3 i {
    color: var(--primary-color);
    margin-right: var(--spacing-xs);
}

.pub-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.pub-list.packages {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: var(--spacing-sm);
}

.pub-item {
    background: var(--bg-light);
    padding: var(--spacing-sm);
    border-radius: 8px;
    border-left: 4px solid var(--primary-color);
    transition: var(--transition);
}

.pub-item:hover {
    background: white;
    box-shadow: var(--shadow-md);
    transform: translateX(5px);
}

.pub-item.package {
    border-left-width: 3px;
    padding: var(--spacing-sm);
}

.pub-item.package:hover {
    transform: translateY(-3px);
}

.pub-title {
    font-weight: 600;
    color: var(--dark-blue);
    margin-bottom: 0.25rem;
    font-size: 1.05rem;
    line-height: 1.4;
}

.pub-item.package .pub-title {
    font-size: 1.1rem;
    font-family: 'Courier New', monospace;
}

.pub-authors {
    color: var(--text-muted);
    font-size: 0.95rem;
    margin-bottom: 0.25rem;
    font-style: italic;
}

.pub-details {
    color: var(--text-muted);
    font-size: 0.9rem;
    margin-bottom: 0.5rem;
}

.pub-link {
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
    color: var(--primary-color);
    font-size: 0.9rem;
    font-weight: 500;
    transition: var(--transition);
}

.pub-link:hover {
    color: var(--primary-dark);
    text-decoration: underline;
}

.pub-link i {
    font-size: 0.8rem;
}

.pub-footer {
    margin-top: var(--spacing-lg);
    text-align: center;
    padding: var(--spacing-md);
    background: var(--bg-light);
    border-radius: 8px;
}

.pub-footer p {
    color: var(--text-muted);
    font-size: 1rem;
    margin: 0;
}

.pub-footer i {
    color: var(--primary-color);
    margin-right: var(--spacing-xs);
}

.pub-footer a {
    color: var(--primary-color);
    font-weight: 600;
}

/* === Contact Section === */

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: var(--spacing-lg);
}

.contact-methods {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    margin-top: var(--spacing-md);
}

.contact-method {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    background: white;
    padding: var(--spacing-sm);
    border-radius: 8px;
    box-shadow: var(--shadow-sm);
}

.contact-method i {
    font-size: 1.5rem;
    color: var(--primary-color);
    min-width: 40px;
}

.contact-method strong {
    display: block;
    color: var(--dark-blue);
    font-size: 0.9rem;
}

.contact-method a {
    color: var(--primary-color);
    font-size: 1.05rem;
}

/* === Contact Form === */
.contact-form {
    background: white;
    padding: var(--spacing-md);
    border-radius: 12px;
    box-shadow: var(--shadow-md);
}

.contact-form h3 {
    margin-bottom: var(--spacing-md);
    color: var(--dark-blue);
}

.form-group {
    margin-bottom: var(--spacing-sm);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: var(--spacing-sm);
    border: 2px solid var(--border-color);
    border-radius: 6px;
    font-family: var(--font-body);
    font-size: 1rem;
    transition: var(--transition);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(41, 128, 185, 0.1);
}

.form-group textarea {
    resize: vertical;
}

/* === Footer === */
.footer {
    background: var(--dark-blue);
    color: white;
    padding: var(--spacing-lg) var(--spacing-md) var(--spacing-md);
}

.footer .container {
    max-width: 100%;
    padding: 0;
}

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

.footer-section h4 {
    color: white;
    margin-bottom: var(--spacing-sm);
    font-size: 1.1rem;
}

.footer-section p {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.95rem;
}

.footer-section:first-child {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.footer-logo {
    height: 160px;
    width: auto;
    margin-bottom: var(--spacing-sm);
    filter: brightness(0) invert(1);
}

.footer-section ul {
    list-style: none;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-xs) var(--spacing-md);
}

.footer-section ul li {
    margin-bottom: var(--spacing-xs);
}

.footer-section a {
    color: rgba(255, 255, 255, 0.8);
    transition: var(--transition);
}

.footer-section a:hover {
    color: white;
    padding-left: 5px;
}

.social-links {
    display: flex;
    gap: var(--spacing-sm);
}

.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: var(--transition);
}

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

.social-links i {
    font-size: 1.25rem;
}

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

/* === Mobile Menu Toggle === */
.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--primary-color);
    cursor: pointer;
    padding: var(--spacing-xs);
}

/* === Responsive Design === */
@media (max-width: 968px) {
    .hero-content,
    .about-content,
    .contact-content {
        grid-template-columns: 1fr;
    }
    
    .hero-title {
        font-size: 2.25rem;
    }
    
    .services-grid {
        grid-template-columns: 1fr;
    }
    
    .expertise-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .mobile-menu-toggle {
        display: block;
    }
    
    .navbar .container {
        flex-wrap: wrap;
    }
    
    .nav-menu {
        display: none;
        flex-direction: column;
        width: 100%;
        text-align: center;
        padding: var(--spacing-sm) 0;
        gap: var(--spacing-xs);
    }
    
    .nav-menu.active {
        display: flex;
    }
    
    .nav-link {
        width: 100%;
        padding: var(--spacing-sm);
    }
}

@media (max-width: 768px) {
    :root {
        --spacing-xl: 2.5rem;
        --spacing-lg: 2rem;
    }
    
    h1 { font-size: 2rem; }
    h2 { font-size: 1.75rem; }
    
    .hero {
        padding: var(--spacing-lg) 0;
    }
    
    .hero-title {
        font-size: 1.75rem;
    }
    
    .hero-subtitle {
        font-size: 1rem;
    }
    
    .profile-img {
        max-width: 250px;
    }
    
    .cta-buttons {
        flex-direction: column;
    }
    
    .btn-large {
        width: 100%;
    }
    
    .stats {
        grid-template-columns: 1fr;
    }
}

/* === Tablet Responsive === */
@media (min-width: 769px) and (max-width: 1024px) {
    .stats {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--spacing-lg);
    }
    
    .stat:last-child {
        grid-column: 1 / -1;
        justify-self: center;
    }
}

/* === Print Styles === */
@media print {
    .navbar,
    .cta-buttons,
    .contact-form,
    .footer {
        display: none;
    }
    
    body {
        font-size: 12pt;
    }
    
    .hero {
        background: white;
        color: var(--text-dark);
    }
}

/* === Accessibility === */
@media (prefers-reduced-motion: reduce) {
    * {
        animation: none !important;
        transition: none !important;
    }
}

/* Focus visible for keyboard navigation */
*:focus-visible {
    outline: 3px solid var(--primary-color);
    outline-offset: 2px;
}

/* === Utility Classes === */
.text-center { text-align: center; }
.mt-1 { margin-top: var(--spacing-sm); }
.mt-2 { margin-top: var(--spacing-md); }
.mt-3 { margin-top: var(--spacing-lg); }
.mb-1 { margin-bottom: var(--spacing-sm); }
.mb-2 { margin-bottom: var(--spacing-md); }
.mb-3 { margin-bottom: var(--spacing-lg); }