/* Modern CSS for GenTech Lab */
:root {
    --primary: #005D92;
    --primary-dark: #004575;
    --secondary: #9DBBD7;
    --accent: #00A8E8;
    --success: #28a745;
    --danger: #dc3545;
    --warning: #ffc107;
    --info: #17a2b8;
    --light: #f8f9fa;
    --dark: #343a40;
    --white: #ffffff;
    --gray-100: #f8f9fa;
    --gray-200: #e9ecef;
    --gray-300: #dee2e6;
    --gray-400: #ced4da;
    --gray-500: #adb5bd;
    --gray-600: #6c757d;
    --gray-700: #495057;
    --gray-800: #343a40;
    --gray-900: #212529;
    
    --font-primary: 'Open Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-heading: 'Raleway', 'Open Sans', sans-serif;
    
    --shadow-sm: 0 0.125rem 0.25rem rgba(0, 0, 0, 0.075);
    --shadow: 0 0.5rem 1rem rgba(0, 0, 0, 0.15);
    --shadow-lg: 0 1rem 3rem rgba(0, 0, 0, 0.175);
    
    --border-radius: 0.5rem;
    --transition: all 0.3s ease;
}

* {
    box-sizing: border-box;
}

body {
    font-family: var(--font-primary);
    line-height: 1.6;
    color: var(--gray-800);
}

/* Modern Card Styles */
.modern-card {
    background: var(--white);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    overflow: hidden;
    height: 100%;
}

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

.modern-card img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    transition: var(--transition);
}

.modern-card:hover img {
    transform: scale(1.05);
}

.modern-card-body {
    padding: 1.5rem;
}

.modern-card-title {
    font-family: var(--font-heading);
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--primary);
    margin-bottom: 0.5rem;
}

.modern-card-text {
    color: var(--gray-600);
    margin-bottom: 1rem;
}

/* Doctor Cards */
.doctor-card {
    background: var(--white);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    overflow: hidden;
    height: 100%;
    text-align: center;
}

.doctor-card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-8px);
}

.doctor-card-img {
    width: 100%;
    height: 280px;
    object-fit: cover;
    background: var(--gray-200);
}

.doctor-card-body {
    padding: 1.5rem;
}

.doctor-card-name {
    font-family: var(--font-heading);
    font-size: 1.35rem;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 0.5rem;
}

.doctor-card-specialty {
    color: var(--accent);
    font-size: 0.95rem;
    font-weight: 500;
    margin-bottom: 1rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.doctor-card-bio {
    color: var(--gray-600);
    font-size: 0.9rem;
    line-height: 1.6;
    margin-bottom: 1.5rem;
}

.doctor-card-actions {
    display: flex;
    gap: 0.75rem;
    justify-content: center;
    flex-wrap: wrap;
}

/* Modern Buttons */
.btn-modern {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    font-size: 0.95rem;
    font-weight: 600;
    text-align: center;
    text-decoration: none;
    border: none;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: var(--transition);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

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

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

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

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

.btn-modern-outline {
    background: transparent;
    color: var(--gray-700);
    border: 2px solid var(--gray-300);
}

.btn-modern-outline:hover {
    background: var(--gray-800);
    color: var(--white);
    border-color: var(--gray-800);
}

/* Section Headings */
.section-heading {
    text-align: center;
    margin-bottom: 3rem;
}

.section-heading h2 {
    font-family: var(--font-heading);
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 1rem;
    position: relative;
    display: inline-block;
}

.section-heading h2::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: var(--accent);
    border-radius: 2px;
}

.section-heading p {
    color: var(--gray-600);
    font-size: 1.1rem;
    margin-top: 1.5rem;
}

/* Service Cards */
.service-card {
    background: var(--white);
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    height: 100%;
}

.service-card:hover {
    box-shadow: var(--shadow);
}

.service-card-img {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.service-card-body {
    padding: 1.5rem;
}

.service-card-title {
    font-family: var(--font-heading);
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--primary);
    margin-bottom: 0.75rem;
}

.service-card-title a {
    color: inherit;
    text-decoration: none;
    transition: var(--transition);
}

.service-card-title a:hover {
    color: var(--accent);
}

.service-card-text {
    color: var(--gray-600);
    font-size: 0.95rem;
    line-height: 1.6;
}

/* Testimonial Cards */
.testimonial-card {
    background: var(--white);
    padding: 2rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-sm);
    position: relative;
    height: 100%;
}

.testimonial-card::before {
    content: '"';
    position: absolute;
    top: 10px;
    left: 20px;
    font-size: 5rem;
    color: var(--secondary);
    opacity: 0.3;
    font-family: Georgia, serif;
}

.testimonial-text {
    font-style: italic;
    color: var(--gray-700);
    margin-bottom: 1.5rem;
    position: relative;
    z-index: 1;
}

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

.testimonial-role {
    color: var(--gray-500);
    font-size: 0.9rem;
}

/* News Cards */
.news-card {
    background: var(--white);
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    height: 100%;
}

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

.news-card-img {
    width: 100%;
    height: 220px;
    object-fit: cover;
}

.news-card-body {
    padding: 1.5rem;
}

.news-card-meta {
    display: flex;
    gap: 1rem;
    color: var(--gray-500);
    font-size: 0.85rem;
    margin-bottom: 1rem;
}

.news-card-title {
    font-family: var(--font-heading);
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--primary);
    margin-bottom: 0.75rem;
}

.news-card-title a {
    color: inherit;
    text-decoration: none;
    transition: var(--transition);
}

.news-card-title a:hover {
    color: var(--accent);
}

.news-card-excerpt {
    color: var(--gray-600);
    font-size: 0.95rem;
    line-height: 1.6;
}

/* Modern Form Styles */
.modern-form-group {
    margin-bottom: 1.5rem;
}

.modern-form-label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: var(--gray-700);
    font-size: 0.95rem;
}

.modern-form-control {
    width: 100%;
    padding: 0.75rem 1rem;
    font-size: 1rem;
    line-height: 1.5;
    color: var(--gray-800);
    background-color: var(--white);
    border: 2px solid var(--gray-300);
    border-radius: var(--border-radius);
    transition: var(--transition);
}

.modern-form-control:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 0.2rem rgba(0, 93, 146, 0.25);
}

.modern-form-control::placeholder {
    color: var(--gray-400);
}

textarea.modern-form-control {
    resize: vertical;
    min-height: 120px;
}

/* Appointment Form */
.appointment-form {
    background: var(--white);
    padding: 2rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
}

/* Alert Styles */
.alert-modern {
    padding: 1rem 1.5rem;
    border-radius: var(--border-radius);
    margin-bottom: 1rem;
    border: none;
}

.alert-modern-success {
    background: #d4edda;
    color: #155724;
    border-left: 4px solid var(--success);
}

.alert-modern-danger {
    background: #f8d7da;
    color: #721c24;
    border-left: 4px solid var(--danger);
}

.alert-modern-info {
    background: #d1ecf1;
    color: #0c5460;
    border-left: 4px solid var(--info);
}

/* Grid Layouts */
.grid-modern {
    display: grid;
    gap: 2rem;
}

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

.grid-3 {
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.grid-4 {
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

/* Section Spacing */
.section-modern {
    padding: 4rem 0;
}

.section-modern-alt {
    background: var(--gray-100);
}

/* Navigation Modern Styles */
.navbar-modern {
    background: var(--white) !important;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.navbar-modern.scrolled {
    box-shadow: var(--shadow);
}

.navbar-brand img {
    max-height: 50px;
}

.navbar-nav .nav-link {
    font-weight: 600;
    color: var(--gray-700) !important;
    padding: 0.5rem 1rem !important;
    transition: var(--transition);
    position: relative;
}

.navbar-nav .nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%) scaleX(0);
    width: 80%;
    height: 2px;
    background: var(--primary);
    transition: var(--transition);
}

.navbar-nav .nav-link:hover::after,
.navbar-nav .nav-link.active::after {
    transform: translateX(-50%) scaleX(1);
}

.navbar-nav .nav-link:hover {
    color: var(--primary) !important;
}

/* Footer Modern */
.footer-modern {
    background: var(--gray-900);
    color: var(--gray-300);
    padding: 3rem 0 1rem;
}

.footer-modern h4 {
    color: var(--white);
    font-family: var(--font-heading);
    font-weight: 600;
    margin-bottom: 1.5rem;
}

.footer-modern a {
    color: var(--gray-400);
    text-decoration: none;
    transition: var(--transition);
}

.footer-modern a:hover {
    color: var(--white);
}

/* Responsive */
@media (max-width: 768px) {
    .section-heading h2 {
        font-size: 2rem;
    }
    
    .doctor-card-img {
        height: 220px;
    }
    
    .grid-2,
    .grid-3,
    .grid-4 {
        grid-template-columns: 1fr;
    }
    
    .section-modern {
        padding: 2.5rem 0;
    }
}

/* Loading Spinner */
.spinner-modern {
    border: 3px solid var(--gray-200);
    border-top: 3px solid var(--primary);
    border-radius: 50%;
    width: 40px;
    height: 40px;
    animation: spin 1s linear infinite;
    margin: 0 auto;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Smooth Scroll */
html {
    scroll-behavior: smooth;
}

/* Utility Classes */
.text-primary-modern { color: var(--primary) !important; }
.bg-primary-modern { background-color: var(--primary) !important; }
.shadow-modern { box-shadow: var(--shadow) !important; }
.rounded-modern { border-radius: var(--border-radius) !important; }