/* HealthFirst Medical Center - Modern Doctor Office Template */

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

/* CSS Custom Properties */
:root {
    /* Medical Color Palette */
    --primary-blue: #1e4a72;
    --secondary-blue: #2563eb;
    --light-blue: #3b82f6;
    --accent-blue: #60a5fa;
    --medical-green: #059669;
    --light-green: #10b981;
    --success-green: #22c55e;
    --medical-teal: #0d9488;
    --light-teal: #14b8a6;
    
    /* Neutral Colors */
    --white: #ffffff;
    --light-gray: #f8fafc;
    --medium-gray: #e2e8f0;
    --text-gray: #64748b;
    --dark-gray: #475569;
    --charcoal: #334155;
    --navy: #0f172a;
    
    /* Status Colors */
    --emergency-red: #dc2626;
    --warning-orange: #ea580c;
    --info-blue: #0284c7;
    
    /* Typography */
    --font-primary: 'Roboto', 'Segoe UI', system-ui, sans-serif;
    --font-heading: 'Roboto Slab', 'Georgia', serif;
    --font-mono: 'JetBrains Mono', 'Consolas', monospace;
    
    /* Spacing */
    --container-max-width: 1200px;
    --section-padding: 80px 0;
    --card-padding: 32px;
    --border-radius: 12px;
    --border-radius-large: 20px;
    
    /* Shadows */
    --shadow-small: 0 1px 3px rgba(0, 0, 0, 0.1);
    --shadow-medium: 0 4px 12px rgba(0, 0, 0, 0.1);
    --shadow-large: 0 10px 25px rgba(0, 0, 0, 0.15);
    --shadow-hover: 0 8px 30px rgba(30, 74, 114, 0.15);
    
    /* Transitions */
    --transition-fast: 0.2s ease-in-out;
    --transition-medium: 0.3s ease-in-out;
    --transition-slow: 0.5s ease-in-out;
}

/* Base Typography */
html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-primary);
    font-size: 1rem;
    line-height: 1.6;
    color: var(--charcoal);
    background-color: var(--white);
    overflow-x: hidden;
}

/* Headings */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 600;
    line-height: 1.3;
    margin-bottom: 1rem;
    color: var(--primary-blue);
}

h1 {
    font-size: clamp(2.5rem, 5vw, 3.5rem);
    font-weight: 700;
}

h2 {
    font-size: clamp(2rem, 4vw, 2.75rem);
}

h3 {
    font-size: clamp(1.5rem, 3vw, 2rem);
}

h4 {
    font-size: 1.25rem;
}

/* Paragraphs and Text */
p {
    margin-bottom: 1rem;
    color: var(--text-gray);
}

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

a:hover {
    color: var(--light-blue);
}

/* Container and Layout */
.container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 20px;
}

.section {
    padding: var(--section-padding);
}

/* Grid System */
.grid {
    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));
}

/* Navigation Styles */
.navbar {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-small);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    transition: all var(--transition-medium);
}

.navbar.scrolled {
    background: rgba(255, 255, 255, 0.98);
    box-shadow: var(--shadow-medium);
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 0;
}

.nav-brand {
    display: flex;
    align-items: center;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-blue);
    text-decoration: none;
}

.logo {
    height: 50px;
    width: auto;
    margin-right: 12px;
}

.nav-menu {
    display: flex;
    list-style: none;
    align-items: center;
    gap: 2rem;
}

.nav-link {
    color: var(--charcoal);
    font-weight: 500;
    padding: 0.5rem 0;
    position: relative;
    transition: color var(--transition-fast);
}

.nav-link:hover,
.nav-link.active {
    color: var(--secondary-blue);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--secondary-blue);
    transition: width var(--transition-fast);
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 100%;
}

/* Mobile Navigation */
.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
    padding: 4px;
}

.bar {
    width: 25px;
    height: 3px;
    background-color: var(--primary-blue);
    margin: 3px 0;
    transition: var(--transition-fast);
    border-radius: 2px;
}

/* Button Styles */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 28px;
    font-size: 1rem;
    font-weight: 600;
    text-decoration: none;
    border: 2px solid transparent;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: all var(--transition-medium);
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: linear-gradient(135deg, var(--secondary-blue), var(--light-blue));
    color: var(--white);
    box-shadow: var(--shadow-medium);
}

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

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

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

.btn-success {
    background: linear-gradient(135deg, var(--medical-green), var(--light-green));
    color: var(--white);
}

.btn-emergency {
    background: linear-gradient(135deg, var(--emergency-red), #ef4444);
    color: var(--white);
    animation: pulse 2s infinite;
}

/* Card Styles */
.card {
    background: var(--white);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-medium);
    padding: var(--card-padding);
    transition: all var(--transition-medium);
    border: 1px solid var(--medium-gray);
}

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

.card-header {
    display: flex;
    align-items: center;
    margin-bottom: 1.5rem;
}

.card-icon {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: 1rem;
    font-size: 1.5rem;
    color: var(--white);
}

.card-icon.primary {
    background: linear-gradient(135deg, var(--secondary-blue), var(--light-blue));
}

.card-icon.success {
    background: linear-gradient(135deg, var(--medical-green), var(--light-green));
}

.card-icon.teal {
    background: linear-gradient(135deg, var(--medical-teal), var(--light-teal));
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--secondary-blue) 100%);
    color: var(--white);
    padding: 120px 0 80px;
    position: relative;
    overflow: hidden;
}

.hero::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>');
    opacity: 0.3;
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.hero h1 {
    color: var(--white);
    margin-bottom: 1.5rem;
}

.hero p {
    font-size: 1.25rem;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 2rem;
}

/* Stats Section */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.stat-item {
    text-align: center;
    background: rgba(255, 255, 255, 0.1);
    padding: 2rem 1rem;
    border-radius: var(--border-radius);
    backdrop-filter: blur(10px);
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--white);
    display: block;
}

.stat-label {
    color: rgba(255, 255, 255, 0.9);
    font-size: 0.9rem;
    margin-top: 0.5rem;
}

/* Section Headers */
.section-header {
    text-align: center;
    max-width: 600px;
    margin: 0 auto 4rem;
}

.section-subtitle {
    color: var(--secondary-blue);
    font-size: 0.9rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 0.5rem;
}

/* Services Grid */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.service-card {
    background: var(--white);
    border-radius: var(--border-radius-large);
    padding: 2.5rem 2rem;
    text-align: center;
    box-shadow: var(--shadow-medium);
    transition: all var(--transition-medium);
    border: 1px solid var(--medium-gray);
}

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

.service-icon {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    font-size: 2rem;
    color: var(--white);
}

/* Doctor Profiles */
.doctor-card {
    background: var(--white);
    border-radius: var(--border-radius-large);
    overflow: hidden;
    box-shadow: var(--shadow-medium);
    transition: all var(--transition-medium);
}

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

.doctor-image {
    width: 100%;
    height: 250px;
    object-fit: cover;
}

.doctor-info {
    padding: 2rem;
}

.doctor-name {
    color: var(--primary-blue);
    margin-bottom: 0.5rem;
}

.doctor-specialty {
    color: var(--medical-green);
    font-weight: 600;
    margin-bottom: 1rem;
}

/* Forms */
.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    font-weight: 600;
    color: var(--charcoal);
    margin-bottom: 0.5rem;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid var(--medium-gray);
    border-radius: var(--border-radius);
    font-size: 1rem;
    transition: border-color var(--transition-fast);
    background: var(--white);
}

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

/* Emergency Banner */
.emergency-banner {
    background: linear-gradient(135deg, var(--emergency-red), #ef4444);
    color: var(--white);
    padding: 1rem 0;
    text-align: center;
    position: relative;
}

.emergency-banner a {
    color: var(--white);
    font-weight: 600;
}

/* Footer */
.footer {
    background: var(--primary-blue);
    color: var(--white);
    padding: 3rem 0 1rem;
}

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

.footer-section h3 {
    color: var(--white);
    margin-bottom: 1rem;
}

.footer-section a {
    color: rgba(255, 255, 255, 0.8);
    display: block;
    margin-bottom: 0.5rem;
    transition: color var(--transition-fast);
}

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

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.8);
}

/* Animations */
@keyframes pulse {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.05);
    }
}

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

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

/* Utility Classes */
.text-center {
    text-align: center;
}

.text-primary {
    color: var(--secondary-blue);
}

.text-success {
    color: var(--medical-green);
}

.bg-light {
    background-color: var(--light-gray);
}

.mt-2 {
    margin-top: 2rem;
}

.mb-2 {
    margin-bottom: 2rem;
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 80px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 80px);
        background: var(--white);
        flex-direction: column;
        justify-content: start;
        align-items: center;
        transition: left var(--transition-medium);
        padding-top: 2rem;
        box-shadow: var(--shadow-large);
    }

    .nav-menu.active {
        left: 0;
    }

    .hamburger {
        display: flex;
    }

    .hamburger.active .bar:nth-child(2) {
        opacity: 0;
    }

    .hamburger.active .bar:nth-child(1) {
        transform: translateY(8px) rotate(45deg);
    }

    .hamburger.active .bar:nth-child(3) {
        transform: translateY(-8px) rotate(-45deg);
    }

    .hero {
        padding: 100px 0 60px;
    }

    .section {
        padding: 60px 0;
    }

    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1rem;
    }

    .services-grid {
        grid-template-columns: 1fr;
    }

    .container {
        padding: 0 15px;
    }
}

@media (max-width: 480px) {
    .stats-grid {
        grid-template-columns: 1fr;
    }

    .card {
        padding: 1.5rem;
    }

    .service-card {
        padding: 2rem 1.5rem;
    }
}

/* Print Styles */
@media print {
    .navbar,
    .emergency-banner,
    .footer {
        display: none;
    }

    .hero {
        background: var(--white);
        color: var(--charcoal);
        padding: 2rem 0;
    }

    .hero h1 {
        color: var(--primary-blue);
    }
}