/* ==========================================================================
   Synergy Healthcare - Modern CSS Stylesheet
   Mobile-first responsive design with CSS Grid and Flexbox
   ========================================================================== */

/* CSS Custom Properties (Variables) */
:root {
    /* Colors */
    --primary-color: #a32bf3;
    --primary-dark: #7a14df;
    --secondary-color: #d479f0;
    --accent-color: #10b981;
    --text-primary: #1f2937;
    --text-secondary: #6b7280;
    --text-light: #9ca3af;
    --background-white: #ffffff;
    --background-light: #f9fafb;
    --background-gray: #f3f4f6;
    --border-color: #e5e7eb;
    --border-light: #f3f4f6;
    
    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 1.875rem;
    --font-size-4xl: 2.25rem;
    --font-size-5xl: 3rem;
    
    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    --spacing-3xl: 4rem;
    
    /* Layout */
    --container-max-width: 1200px;
    --border-radius: 0.5rem;
    --border-radius-lg: 0.75rem;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    
    /* Transitions */
    --transition-fast: 0.15s ease-in-out;
    --transition-normal: 0.3s ease-in-out;
    --transition-slow: 0.5s ease-in-out;
}

/* ==========================================================================
   Reset and Base Styles
   ========================================================================== */

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

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

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

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

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

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    background: none;
}

/* ==========================================================================
   Typography
   ========================================================================== */

h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.2;
    margin-bottom: var(--spacing-md);
}

h1 {
    font-size: var(--font-size-4xl);
    font-weight: 700;
}

h2 {
    font-size: var(--font-size-3xl);
}

h3 {
    font-size: var(--font-size-2xl);
}

h4 {
    font-size: var(--font-size-xl);
}

h5 {
    font-size: var(--font-size-lg);
}

h6 {
    font-size: var(--font-size-base);
}

p {
    margin-bottom: var(--spacing-md);
    color: var(--text-secondary);
}

/* ==========================================================================
   Layout Components
   ========================================================================== */

.container {
    width: 100%;
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.main-content {
    min-height: calc(100vh - 200px);
}

/* ==========================================================================
   Header and Navigation
   ========================================================================== */

.header {
    background-color: var(--background-white);
    box-shadow: var(--shadow-sm);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
}

.navbar {
    padding: var(--spacing-md) 0;
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.nav-brand .brand-text {
    font-size: var(--font-size-xl);
    font-weight: 700;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color), var(--accent-color));
    background-size: 200% 200%;
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    animation: logoGradient 4s ease infinite, logoGlow 3s ease-in-out infinite;
    transition: all var(--transition-base);
    position: relative;
    display: inline-block;
}

.nav-brand .brand-text::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    transition: width var(--transition-base);
}

.nav-brand:hover .brand-text {
    transform: scale(1.05);
    filter: brightness(1.2);
}

.nav-brand:hover .brand-text::after {
    width: 100%;
}

@keyframes logoGradient {
    0%, 100% {
        background-position: 0% 50%;
    }
    50% {
        background-position: 100% 50%;
    }
}

@keyframes logoGlow {
    0%, 100% {
        filter: drop-shadow(0 0 2px rgba(102, 126, 234, 0.3));
    }
    50% {
        filter: drop-shadow(0 0 8px rgba(102, 126, 234, 0.6)) drop-shadow(0 0 12px rgba(118, 75, 162, 0.4));
    }
}

.nav-toggle {
    display: none;
    flex-direction: column;
    justify-content: space-around;
    width: 24px;
    height: 24px;
    background: transparent;
    border: none;
    cursor: pointer;
    z-index: 1001;
}

.hamburger-line {
    width: 100%;
    height: 2px;
    background-color: var(--text-primary);
    transition: all var(--transition-fast);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: var(--spacing-xl);
}

.nav-link {
    font-weight: 500;
    color: var(--text-primary);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--border-radius);
    transition: all var(--transition-fast);
}

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

/* Mobile Navigation */
@media (max-width: 768px) {
    .nav-toggle {
        display: flex;
    }
    
    .nav-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 250px;
        height: 100vh;
        background-color: var(--background-white);
        flex-direction: column;
        justify-content: flex-start;
        align-items: flex-start;
        padding: var(--spacing-3xl) var(--spacing-xl);
        box-shadow: var(--shadow-lg);
        transition: right var(--transition-normal);
        gap: var(--spacing-md);
    }
    
    .nav-menu.active {
        right: 0;
    }
    
    .nav-toggle.active .hamburger-line:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }
    
    .nav-toggle.active .hamburger-line:nth-child(2) {
        opacity: 0;
    }
    
    .nav-toggle.active .hamburger-line:nth-child(3) {
        transform: rotate(-45deg) translate(7px, -6px);
    }
}

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

.hero {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: white;
    padding: var(--spacing-3xl) 0;
    margin-top: 80px;
    text-align: center;
}

.hero h1 {
    font-size: var(--font-size-5xl);
    margin-bottom: var(--spacing-lg);
    color: white;
}

.hero p {
    font-size: var(--font-size-xl);
    margin-bottom: var(--spacing-2xl);
    color: rgba(255, 255, 255, 0.9);
}

.hero-buttons {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    flex-wrap: wrap;
}

/* ==========================================================================
   Buttons
   ========================================================================== */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-md) var(--spacing-xl);
    border-radius: var(--border-radius);
    font-weight: 500;
    text-decoration: none;
    transition: all var(--transition-fast);
    cursor: pointer;
    border: none;
    font-size: var(--font-size-base);
}

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

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

.btn-secondary {
    background-color: transparent;
    color: white;
    border: 2px solid white;
}

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

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

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

/* ==========================================================================
   Sections
   ========================================================================== */

.section {
    padding: var(--spacing-3xl) 0;
}

.section-title {
    text-align: left;
    margin-bottom: var(--spacing-2xl);
}

.section-subtitle {
    text-align: center;
    font-size: var(--font-size-xl);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-3xl);
}

/* ==========================================================================
   Grid Systems
   ========================================================================== */

.grid {
    display: grid;
    gap: var(--spacing-xl);
}

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

.grid-3 {
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

.grid-4 {
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
}

/* ==========================================================================
   Cards
   ========================================================================== */

.card {
    background-color: var(--background-white);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-normal);
    border: 1px solid var(--border-light);
}

.card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-4px);
}

.card-icon {
    width: 48px;
    height: 48px;
    margin-bottom: var(--spacing-md);
    color: var(--primary-color);
}

.card-title {
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
}

.card-content {
    color: var(--text-secondary);
}

/* ==========================================================================
   Forms
   ========================================================================== */

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

.form-label {
    display: block;
    margin-bottom: var(--spacing-sm);
    font-weight: 500;
    color: var(--text-primary);
}

.form-input,
.form-textarea,
.form-select {
    width: 100%;
    padding: var(--spacing-md);
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius);
    font-size: var(--font-size-base);
    transition: border-color var(--transition-fast);
    background-color: var(--background-white);
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

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

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

.footer {
    background-color: var(--text-primary);
    color: white;
    padding: var(--spacing-3xl) 0 var(--spacing-xl);
}

.footer-container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

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

.footer-title {
    color: white;
    margin-bottom: var(--spacing-md);
}

.footer-subtitle {
    color: white;
    margin-bottom: var(--spacing-md);
    font-size: var(--font-size-lg);
}

.footer-description {
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.6;
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: var(--spacing-sm);
}

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

.footer-link:hover {
    color: white;
}

.contact-info {
    color: rgba(255, 255, 255, 0.8);
}

.contact-item {
    margin-bottom: var(--spacing-sm);
}

.contact-label {
    font-weight: 500;
    color: white;
}

.contact-link {
    color: rgba(87, 87, 87, 0.8);
    transition: color var(--transition-fast);
}

.contact-link:hover {
    color: rgb(154, 66, 241);
}

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

.contact-link-footer {
    color: rgba(255, 255, 255, 0.996);
    transition: color var(--transition-fast);
}

.social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: var(--border-radius);
    color: rgba(255, 255, 255, 0.8);
    transition: all var(--transition-fast);
}

.social-link:hover {
    background-color: var(--primary-color);
    color: white;
    transform: translateY(-2px);
}

.social-icon {
    width: 20px;
    height: 20px;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: var(--spacing-xl);
}

.footer-bottom-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-md);
}

.copyright {
    color: rgba(255, 255, 255, 0.6);
    margin-bottom: 0;
}

.footer-bottom-links {
    display: flex;
    gap: var(--spacing-lg);
}

.footer-bottom-link {
    color: rgba(255, 255, 255, 0.6);
    font-size: var(--font-size-sm);
    transition: color var(--transition-fast);
}

.footer-bottom-link:hover {
    color: white;
}

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

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

.text-left {
    text-align: left;
}

.text-right {
    text-align: right;
}

.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: var(--spacing-xs); }
.mb-2 { margin-bottom: var(--spacing-sm); }
.mb-3 { margin-bottom: var(--spacing-md); }
.mb-4 { margin-bottom: var(--spacing-lg); }
.mb-5 { margin-bottom: var(--spacing-xl); }

.mt-0 { margin-top: 0; }
.mt-1 { margin-top: var(--spacing-xs); }
.mt-2 { margin-top: var(--spacing-sm); }
.mt-3 { margin-top: var(--spacing-md); }
.mt-4 { margin-top: var(--spacing-lg); }
.mt-5 { margin-top: var(--spacing-xl); }

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

/* Tablet Styles */
@media (max-width: 1024px) {
    :root {
        --font-size-4xl: 2rem;
        --font-size-5xl: 2.5rem;
    }
    
    .container {
        padding: 0 var(--spacing-lg);
    }
    
    .hero {
        padding: var(--spacing-2xl) 0;
    }
    
    .section {
        padding: var(--spacing-2xl) 0;
    }
}

/* Mobile Styles */
@media (max-width: 768px) {
    :root {
        --font-size-3xl: 1.5rem;
        --font-size-4xl: 1.75rem;
        --font-size-5xl: 2rem;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .btn {
        width: 100%;
        max-width: 300px;
    }
    
    .grid-2,
    .grid-3,
    .grid-4 {
        grid-template-columns: 1fr;
    }
    
    .footer-bottom-content {
        flex-direction: column;
        text-align: center;
    }
    
    .footer-bottom-links {
        justify-content: center;
    }
}

/* Small Mobile Styles */
@media (max-width: 480px) {
    .container {
        padding: 0 var(--spacing-md);
    }
    
    .card {
        padding: var(--spacing-lg);
    }
    
    .social-links {
        justify-content: center;
    }
}

/* ==========================================================================
   Product Image Styles
   ========================================================================== */

.product-image-container {
    width: 300px;
    height: 300px;
    margin: 0 auto var(--spacing-lg);
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius);
    overflow: hidden;
    background: var(--background-white);
    box-shadow: var(--shadow-md);
    display: flex;
    align-items: center;
    justify-content: center;
}

.product-image {
    width: 100%;
    height: 100%;
    object-fit: scale-down;
    padding: 10px;
}

/* Responsive Product Image Styles */
@media (max-width: 768px) {
    .product-image-container {
        width: 160px;
        height: 160px;
    }
}

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

.section-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-3xl);
    padding-bottom: var(--spacing-xl);
    border-bottom: 3px solid var(--border-color);
    position: relative;
}

.section-header::after {
    content: '';
    position: absolute;
    bottom: -3px;
    left: 0;
    width: 150px;
    height: 3px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    border-radius: 3px;
}

.section-icon {
    width: 80px;
    height: 80px;
    border-radius: var(--border-radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    box-shadow: var(--shadow-lg);
}

/* Enhanced Product Cards */
.card {
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color), var(--accent-color));
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.card:hover::before {
    transform: scaleX(1);
}

.card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.12);
}

.product-image-container {
    transition: all 0.3s ease;
}

.card:hover .product-image-container {
    border-color: var(--primary-color);
    box-shadow: 0 10px 25px rgba(37, 99, 235, 0.15);
}

/* Responsive Section Header */
@media (max-width: 768px) {
    .section-header {
        flex-direction: column;
        text-align: center;
        gap: var(--spacing-lg);
    }
    
    .section-header::after {
        left: 50%;
        transform: translateX(-50%);
    }
    
    .section-icon {
        width: 70px;
        height: 70px;
    }
}