/* ======================================
   Medical Site Styles - Professional Hospital Theme
   Author: Professional Medical Website
   Theme: Clean White Medical Theme with Blue Accents
   ====================================== */

/* Root Variables */
:root {
    /* Primary Colors - Medical Blue Theme */
    --primary-blue: #1976D2;
    --primary-dark-blue: #1565C0;
    --primary-light-blue: #42A5F5;
    --accent-blue: #03A9F4;
    
    /* Supporting Colors */
    --success-green: #4CAF50;
    --warning-orange: #FF9800;
    --danger-red: #F44336;
    --info-cyan: #00BCD4;
    
    /* Neutral Colors */
    --white: #FFFFFF;
    --off-white: #FAFAFA;
    --light-gray: #F5F5F5;
    --medium-gray: #9E9E9E;
    --dark-gray: #424242;
    --text-primary: #212121;
    --text-secondary: #757575;
    
    /* Typography */
    --font-family-base: 'Segoe UI', 'Microsoft YaHei', 'PingFang SC', 'Helvetica Neue', Arial, sans-serif;
    --font-family-heading: 'Georgia', 'Times New Roman', 'Source Han Serif CN', serif;
    
    /* Shadows */
    --shadow-sm: 0 2px 4px rgba(0,0,0,0.05);
    --shadow-md: 0 4px 8px rgba(0,0,0,0.08);
    --shadow-lg: 0 8px 16px rgba(0,0,0,0.12);
    --shadow-xl: 0 12px 24px rgba(0,0,0,0.16);
    
    /* Transitions */
    --transition-fast: 0.2s ease-in-out;
    --transition-normal: 0.3s ease-in-out;
    --transition-slow: 0.5s ease-in-out;
    
    /* Border Radius */
    --border-radius-sm: 4px;
    --border-radius-md: 8px;
    --border-radius-lg: 12px;
    --border-radius-xl: 16px;
    --border-radius-round: 50%;
    
    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-xxl: 3rem;
}

/* ======================================
   Global Styles
   ====================================== */

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

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

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

a:hover {
    text-decoration: none;
    color: var(--primary-dark-blue);
}

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

/* Typography Enhancements */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.3;
    margin-bottom: var(--spacing-md);
}

.display-3 {
    font-size: 3.5rem;
    font-weight: 800;
}

.display-4 {
    font-size: 3rem;
    font-weight: 800;
}

.display-5 {
    font-size: 2.5rem;
    font-weight: 700;
}

.lead {
    font-size: 1.125rem;
    font-weight: 400;
    color: var(--text-secondary);
}

/* ======================================
   Header Styles
   ====================================== */

/* Emergency Bar */
.emergency-bar {
    background: linear-gradient(135deg, var(--danger-red), #E53935);
    font-size: 14px;
    font-weight: 500;
}

/* Main Header */
.main-header {
    background: var(--white);
    border-bottom: 1px solid #E0E0E0;
}

.logo-img {
    height: 60px;
    width: auto;
}

.contact-info {
    border-left: 2px solid var(--light-gray);
}

/* Navigation */
.navbar {
    background: var(--primary-blue) !important;
    box-shadow: var(--shadow-md);
}

.navbar-nav .nav-link {
    font-weight: 500;
    transition: var(--transition-fast);
    position: relative;
    color: var(--white) !important;
}

.navbar-nav .nav-link:hover {
    color: rgba(255, 255, 255, 0.9) !important;
    transform: translateY(-1px);
}

.navbar-nav .nav-link.active {
    color: var(--white) !important;
    font-weight: 600;
}

.navbar-nav .nav-link.active::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 50%;
    transform: translateX(-50%);
    width: 30px;
    height: 3px;
    background: var(--warning-orange);
    border-radius: 2px;
}

.dropdown-menu {
    border: none;
    box-shadow: var(--shadow-lg);
    border-radius: var(--border-radius-lg);
    margin-top: 10px;
}

.dropdown-item {
    transition: var(--transition-fast);
    padding: 12px 20px;
    font-weight: 500;
}

.dropdown-item:hover {
    background-color: var(--light-gray);
    color: var(--primary-blue);
    transform: translateX(5px);
}

/* Breadcrumb Section */
.breadcrumb-section {
    background: var(--light-gray);
    border-bottom: 1px solid #E0E0E0;
}

.breadcrumb-item a:hover {
    color: var(--primary-dark-blue) !important;
}

/* ======================================
   Hero Section Styles
   ====================================== */

.hero-slider-section {
    position: relative;
    background: linear-gradient(135deg, var(--primary-blue), var(--primary-dark-blue));
}

.hero-slide-img {
    height: 600px;
    object-fit: cover;
}

.carousel-caption {
    background: rgba(255, 255, 255, 0.95);
    border-radius: var(--border-radius-xl);
    padding: 3rem;
    max-width: 800px;
    margin: 0 auto;
    color: var(--text-primary);
    box-shadow: var(--shadow-xl);
}

.hero-badge .badge {
    font-size: 1rem;
    padding: 0.75rem 1.5rem;
    font-weight: 600;
}

.carousel-indicators button {
    width: 12px !important;
    height: 12px !important;
    border-radius: 50%;
    margin: 0 6px !important;
    background-color: var(--white);
    opacity: 0.5;
}

.carousel-indicators button.active {
    opacity: 1;
}

.carousel-control-prev,
.carousel-control-next {
    width: 50px;
    height: 50px;
    background: var(--primary-blue);
    border-radius: 50%;
    top: 50%;
    transform: translateY(-50%);
    transition: var(--transition-normal);
    opacity: 0.8;
}

.carousel-control-prev:hover,
.carousel-control-next:hover {
    opacity: 1;
    transform: translateY(-50%) scale(1.1);
}

/* ======================================
   Statistics Section
   ====================================== */

.stats-section {
    background: var(--off-white);
    position: relative;
}

.stat-card {
    transition: var(--transition-normal);
    border-radius: var(--border-radius-lg);
    overflow: hidden;
}

.stat-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-xl);
}

.stat-icon {
    transition: var(--transition-normal);
}

.stat-card:hover .stat-icon {
    transform: scale(1.1);
    box-shadow: var(--shadow-lg);
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 0.5rem;
}

/* ======================================
   Services Section
   ====================================== */

.service-card {
    transition: var(--transition-normal);
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-xl);
}

.service-icon {
    transition: var(--transition-normal);
}

.service-card:hover .service-icon {
    transform: scale(1.1);
}

.service-image {
    transition: var(--transition-normal);
}

.service-card:hover .service-image {
    transform: scale(1.05);
}

/* ======================================
   Why Choose Us Section
   ====================================== */

.why-choose-us-section {
    background: var(--off-white);
}

.why-choose-image {
    position: relative;
}

.image-overlay {
    background: linear-gradient(135deg, rgba(25, 118, 210, 0.8), rgba(21, 101, 192, 0.8));
    opacity: 0;
    transition: var(--transition-normal);
}

.why-choose-image:hover .image-overlay {
    opacity: 1;
}

.advantage-item {
    transition: var(--transition-normal);
}

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

.advantage-icon {
    transition: var(--transition-normal);
}

.advantage-item:hover .advantage-icon {
    transform: rotate(5deg) scale(1.1);
}

/* ======================================
   Process Section
   ====================================== */

.process-step {
    position: relative;
}

.process-number {
    transition: var(--transition-normal);
    box-shadow: var(--shadow-md);
    font-weight: 800;
}

.process-step:hover .process-number {
    transform: scale(1.1);
    box-shadow: var(--shadow-lg);
}

.process-line {
    z-index: -1;
}

/* ======================================
   Team Section
   ====================================== */

.team-member {
    transition: var(--transition-normal);
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
}

.team-member:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-xl);
}

.member-avatar img {
    transition: var(--transition-normal);
}

.team-member:hover .member-avatar img {
    transform: scale(1.1);
}

.member-specialties small {
    display: inline-block;
    margin-bottom: 0.25rem;
}

/* ======================================
   News Section
   ====================================== */

.news-card {
    transition: var(--transition-normal);
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
}

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

.card-img-wrapper {
    position: relative;
    overflow: hidden;
}

.card-img-wrapper img {
    transition: var(--transition-normal);
}

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

.hover-overlay {
    opacity: 0;
    transition: var(--transition-normal);
}

.news-card:hover .hover-overlay {
    opacity: 1;
}

.article-tags .badge {
    font-size: 0.75rem;
    padding: 0.5rem 0.75rem;
}

/* ======================================
   City Directory Section
   ====================================== */

.city-directory-section {
    background: var(--off-white);
}

.city-directory-item {
    transition: var(--transition-normal);
    border-radius: var(--border-radius-lg);
    padding: 1.5rem 1rem;
    text-align: center;
    background: var(--white);
    border: 2px solid var(--light-gray);
}

.city-directory-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-blue);
}

/* ======================================
   Testimonials Section
   ====================================== */

.testimonials-section {
    background: linear-gradient(135deg, var(--primary-blue), var(--primary-dark-blue));
    position: relative;
}

.testimonial-item {
    padding: 2rem;
}

.testimonial-avatar img {
    border: 4px solid rgba(255, 255, 255, 0.3);
    box-shadow: var(--shadow-md);
}

.testimonial-rating {
    font-size: 1.25rem;
}

#testimonialCarousel .carousel-control-prev,
#testimonialCarousel .carousel-control-next {
    width: 50px;
    height: 50px;
    background: var(--white);
    border-radius: 50%;
    opacity: 0.8;
}

#testimonialCarousel .carousel-control-prev:hover,
#testimonialCarousel .carousel-control-next:hover {
    opacity: 1;
}

/* ======================================
   FAQ Section
   ====================================== */

.faq-section {
    background: var(--off-white);
}

.accordion-item {
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

.accordion-button {
    transition: var(--transition-fast);
    font-weight: 600;
    padding: 1.5rem;
}

.accordion-button:not(.collapsed) {
    background-color: var(--light-gray);
    color: var(--primary-blue);
    box-shadow: inset 0 -1px 0 rgba(0,0,0,0.125);
}

.accordion-button:hover {
    background-color: var(--light-gray);
}

.accordion-body {
    padding: 2rem;
    line-height: 1.8;
}

/* ======================================
   Contact Page Styles
   ====================================== */

.contact-card {
    transition: var(--transition-normal);
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
}

.contact-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-xl);
}

.contact-icon {
    transition: var(--transition-normal);
}

.contact-card:hover .contact-icon {
    transform: scale(1.1);
}

.form-container {
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.form-control, .form-select {
    border-radius: var(--border-radius-round);
    border: 2px solid #E0E0E0;
    transition: var(--transition-fast);
    padding: 1rem 1.5rem;
    font-size: 1rem;
}

.form-control:focus, .form-select:focus {
    border-color: var(--primary-blue);
    box-shadow: 0 0 0 0.2rem rgba(25, 118, 210, 0.25);
}

.form-control-lg {
    font-size: 1.125rem;
}

/* ======================================
   Article Detail Styles
   ====================================== */

.article-header-section {
    background: linear-gradient(135deg, var(--primary-blue), var(--primary-dark-blue));
    position: relative;
    overflow: hidden;
}

.article-content {
    line-height: 1.8;
    font-size: 1.125rem;
}

.article-content h1, .article-content h2, .article-content h3,
.article-content h4, .article-content h5, .article-content h6 {
    color: var(--primary-blue);
    margin: 2rem 0 1rem 0;
}

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

.article-content img {
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-sm);
    margin: 1.5rem 0;
}

.share-buttons .btn {
    transition: var(--transition-fast);
    border-radius: var(--border-radius-round);
}

.share-buttons .btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.author-info {
    background: var(--white);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
}

.related-articles {
    border-radius: var(--border-radius-lg);
    overflow: hidden;
}

.related-article {
    transition: var(--transition-fast);
}

.related-article:hover {
    transform: translateY(-2px);
}

/* ======================================
   About Page Styles
   ====================================== */

.company-intro {
    line-height: 1.8;
}

.highlight-item {
    transition: var(--transition-normal);
    border-radius: var(--border-radius-lg);
}

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

.highlight-icon {
    transition: var(--transition-normal);
}

.highlight-item:hover .highlight-icon {
    transform: rotate(5deg) scale(1.1);
}

.service-detail-card {
    transition: var(--transition-normal);
    border-radius: var(--border-radius-lg);
    overflow: hidden;
}

.service-detail-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-xl);
}

.advantage-card {
    transition: var(--transition-normal);
    border-radius: var(--border-radius-lg);
}

.advantage-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-xl);
}

.advantage-icon {
    transition: var(--transition-normal);
}

.advantage-card:hover .advantage-icon {
    transform: scale(1.1);
}

.certificate-card {
    transition: var(--transition-normal);
    border-radius: var(--border-radius-lg);
}

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

/* ======================================
   Footer Styles
   ====================================== */

.footer {
    background: var(--dark-gray) !important;
    position: relative;
}

.footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-blue), var(--success-green));
}

.hover-text-primary {
    transition: var(--transition-fast);
}

.hover-text-primary:hover {
    color: var(--primary-blue) !important;
}

.friend-links a {
    transition: var(--transition-fast);
    display: inline-block;
}

.friend-links a:hover {
    transform: translateY(-2px);
    color: var(--primary-light-blue) !important;
}

/* ======================================
   Back to Top & Floating Elements
   ====================================== */

#backToTop {
    transition: var(--transition-normal);
    box-shadow: var(--shadow-lg);
    border-radius: var(--border-radius-round);
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
}

#backToTop:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
}

.quick-actions-sidebar a {
    transition: var(--transition-normal);
    box-shadow: var(--shadow-md);
    animation: pulse 2s infinite;
}

.quick-actions-sidebar a:hover {
    transform: scale(1.1);
    box-shadow: var(--shadow-lg);
}

@keyframes pulse {
    0% {
        transform: scale(1);
        box-shadow: var(--shadow-md);
    }
    50% {
        transform: scale(1.05);
        box-shadow: var(--shadow-lg);
    }
    100% {
        transform: scale(1);
        box-shadow: var(--shadow-md);
    }
}

/* ======================================
   Page Header Styles
   ====================================== */

.page-header-section {
    background: linear-gradient(135deg, var(--primary-blue), var(--primary-dark-blue));
    position: relative;
    overflow: hidden;
}

.page-header-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><circle cx="50" cy="50" r="1" fill="rgba(255,255,255,0.1)"/></svg>') repeat;
}

.page-header-section .container {
    position: relative;
    z-index: 1;
}

.breadcrumb-item a:hover {
    color: var(--primary-light-blue) !important;
}

/* ======================================
   CTA Section
   ====================================== */

.cta-section {
    background: linear-gradient(135deg, var(--danger-red), #C62828);
    position: relative;
    overflow: hidden;
}

.cta-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><circle cx="50" cy="50" r="1" fill="rgba(255,255,255,0.2)"/></svg>') repeat;
}

.cta-section .container {
    position: relative;
    z-index: 1;
}

/* ======================================
   Utility Classes
   ====================================== */

.hover-shadow-lg {
    transition: var(--transition-normal);
}

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

.hover-shadow-xl {
    transition: var(--transition-normal);
}

.hover-shadow-xl:hover {
    box-shadow: var(--shadow-xl);
    transform: translateY(-10px);
}

.transition-all {
    transition: var(--transition-normal);
}

.shadow-sm { box-shadow: var(--shadow-sm); }
.shadow-md { box-shadow: var(--shadow-md); }
.shadow-lg { box-shadow: var(--shadow-lg); }
.shadow-xl { box-shadow: var(--shadow-xl); }

/* ======================================
   Button Styles
   ====================================== */

.btn {
    font-weight: 600;
    transition: var(--transition-fast);
    border-radius: var(--border-radius-round);
}

.btn-lg {
    padding: 1rem 2rem;
    font-size: 1.125rem;
}

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

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

.btn-danger {
    background-color: var(--danger-red);
    border-color: var(--danger-red);
}

.btn-danger:hover {
    background-color: #C62828;
    border-color: #C62828;
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-success {
    background-color: var(--success-green);
    border-color: var(--success-green);
}

.btn-success:hover {
    background-color: #388E3C;
    border-color: #388E3C;
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-warning {
    background-color: var(--warning-orange);
    border-color: var(--warning-orange);
    color: var(--white);
}

.btn-warning:hover {
    background-color: #F57C00;
    border-color: #F57C00;
    color: var(--white);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-outline-light {
    border-color: rgba(255, 255, 255, 0.8);
    color: rgba(255, 255, 255, 0.9);
}

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

/* ======================================
   Responsive Design
   ====================================== */

@media (max-width: 1200px) {
    .display-3 { font-size: 3rem; }
    .display-4 { font-size: 2.5rem; }
    .display-5 { font-size: 2rem; }
}

@media (max-width: 992px) {
    .display-3 { font-size: 2.5rem; }
    .display-4 { font-size: 2rem; }
    .display-5 { font-size: 1.75rem; }
    
    .hero-slide-img {
        height: 500px;
    }
    
    .carousel-caption {
        padding: 2rem;
    }
    
    .stat-number {
        font-size: 2rem;
    }
}

@media (max-width: 768px) {
    .display-3 { font-size: 2rem; }
    .display-4 { font-size: 1.75rem; }
    .display-5 { font-size: 1.5rem; }
    
    .hero-slide-img {
        height: 400px;
    }
    
    .carousel-caption {
        padding: 1.5rem;
        margin: 1rem;
    }
    
    .carousel-caption h1 {
        font-size: 2rem;
    }
    
    .stat-number {
        font-size: 1.75rem;
    }
    
    .service-card,
    .stat-card,
    .team-member,
    .advantage-card,
    .contact-card {
        margin-bottom: 1.5rem;
    }
    
    .navbar-nav .nav-link {
        padding: 1rem;
        border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    }
    
    .dropdown-menu {
        margin: 0;
        border-radius: 0;
    }
}

@media (max-width: 576px) {
    .display-3 { font-size: 1.75rem; }
    .display-4 { font-size: 1.5rem; }
    .display-5 { font-size: 1.25rem; }
    
    .hero-slide-img {
        height: 300px;
    }
    
    .carousel-caption {
        padding: 1rem;
        margin: 0.5rem;
    }
    
    .carousel-caption h1 {
        font-size: 1.5rem;
    }
    
    .stat-number {
        font-size: 1.5rem;
    }
    
    .btn-lg {
        padding: 0.75rem 1.5rem;
        font-size: 1rem;
    }
    
    .city-directory-item {
        padding: 1rem 0.5rem;
    }
    
    .process-number {
        width: 80px;
        height: 80px;
    }
    
    .process-line {
        display: none !important;
    }
}

/* ======================================
   Animation Classes
   ====================================== */

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in-up {
    animation: fadeInUp 0.6s ease-out;
}

/* ======================================
   Scroll Animations
   ====================================== */

[data-aos] {
    transition-duration: 0.8s;
}

[data-aos="fade-up"] {
    transform: translateY(30px);
}

[data-aos].aos-animate {
    transform: translateY(0);
}

/* ======================================
   Print Styles
   ====================================== */

@media print {
    .emergency-bar,
    .navbar,
    .breadcrumb-section,
    .footer,
    #backToTop,
    .quick-actions-sidebar {
        display: none !important;
    }
    
    body {
        font-size: 12pt;
        line-height: 1.4;
        color: var(--text-primary);
    }
    
    .container {
        max-width: 100%;
    }
    
    .card {
        box-shadow: none;
        border: 1px solid #ccc;
    }
}