/**
 * Main styles for Dr. Madsen Website
 * Optimized for performance and maintainability
 */

/* === Base Styles === */
:root {
    /* Color Variables */
    --primary: #1e40af;
    --primary-light: #3b82f6;
    --primary-dark: #1e3a8a;
    --secondary: #fbbf24;
    --secondary-light: #fcd34d;
    --secondary-dark: #d97706;
    --text-dark: #1f2937;
    --text-light: #f9fafb;
    --text-muted: #6b7280;
    --bg-light: #f3f4f6;
    --bg-white: #ffffff;
    --bg-dark: #111827;
    --border-light: #e5e7eb;
    --border-dark: #374151;
    --shadow: rgba(0, 0, 0, 0.1);
    
    /* Spacing Variables */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    --spacing-3xl: 4rem;
    
    /* Font Variables */
    --font-heading: 'Playfair Display', serif;
    --font-subheading: 'Montserrat', sans-serif;
    --font-body: 'Open Sans', sans-serif;
}

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

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

body {
    font-family: var(--font-body);
    color: var(--text-dark);
    line-height: 1.6;
    background-color: var(--bg-light);
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    margin-bottom: var(--spacing-md);
    font-weight: 500;
    line-height: 1.2;
}

h1 {
    font-size: 2.5rem;
}

h2 {
    font-size: 2rem;
}

h3 {
    font-size: 1.75rem;
}

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

a {
    color: var(--primary);
    text-decoration: none;
    transition: color 0.3s ease;
}

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

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

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

.card {
    background-color: var(--bg-white);
    border-radius: 8px;
    box-shadow: 0 4px 6px var(--shadow);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
    border-left: 4px solid var(--primary);
}

.btn, button {
    display: inline-block;
    padding: var(--spacing-sm) var(--spacing-lg);
    background-color: var(--primary);
    color: var(--text-light);
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-family: var(--font-subheading);
    font-weight: 500;
    text-align: center;
    transition: background-color 0.3s ease;
}

.btn:hover, button:hover {
    background-color: var(--primary-light);
}

.btn.secondary, button.secondary {
    background-color: var(--secondary);
    color: var(--text-dark);
}

.btn.secondary:hover, button.secondary:hover {
    background-color: var(--secondary-light);
}

.btn.large, button.large {
    padding: var(--spacing-md) var(--spacing-xl);
    font-size: 1.1rem;
}

/* === Navigation === */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background-color: var(--bg-white);
    box-shadow: 0 2px 4px var(--shadow);
    z-index: 1000;
    transition: background-color 0.3s ease;
}

.navbar.scrolled {
    background-color: var(--bg-white);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-md) var(--spacing-lg);
}

.nav-logo {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.nav-logo h2 {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    margin: 0;
    color: var(--primary);
}

.nav-logo span {
    font-family: var(--font-subheading);
    font-size: 0.9rem;
    color: var(--text-muted);
}

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

.nav-link {
    margin: 0 var(--spacing-md);
    color: var(--text-dark);
    font-family: var(--font-subheading);
    font-weight: 500;
    position: relative;
}

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

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--primary);
    transition: width 0.3s ease;
}

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

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

.language-selector {
    margin-right: var(--spacing-md);
}

.language-select {
    padding: var(--spacing-xs) var(--spacing-sm);
    border: 1px solid var(--border-light);
    border-radius: 4px;
    background-color: var(--bg-white);
    font-family: var(--font-subheading);
    cursor: pointer;
}

.cta-button {
    background-color: var(--primary);
    color: var(--text-light);
    padding: var(--spacing-sm) var(--spacing-lg);
    border: none;
    border-radius: 4px;
    font-family: var(--font-subheading);
    font-weight: 500;
    cursor: pointer;
    transition: background-color 0.3s ease;
    text-decoration: none;
    display: inline-block;
}

.cta-button:hover {
    background-color: var(--primary-light);
    color: var(--text-light);
}

.cta-button:focus,
.cta-button:active {
    background-color: var(--primary-dark);
    color: var(--text-light);
    outline: none;
}

.hamburger {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 30px;
    height: 20px;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 0;
    margin-left: var(--spacing-md);
}

.hamburger span {
    display: block;
    width: 100%;
    height: 2px;
    background-color: var(--text-dark);
    transition: all 0.3s ease;
}

.hamburger.active span:nth-child(1) {
    transform: translateY(9px) rotate(45deg);
}

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

.hamburger.active span:nth-child(3) {
    transform: translateY(-9px) rotate(-45deg);
}

/* === Hero Section === */
.hero {
    padding-top: 80px;
    background: linear-gradient(to right, var(--primary-dark), var(--primary));
    color: var(--text-light);
    min-height: 80vh;
    display: flex;
    align-items: center;
}

.hero-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-3xl) 0;
}

.hero-content {
    flex: 1;
    max-width: 600px;
}

.hero-title {
    font-size: 3rem;
    margin-bottom: var(--spacing-md);
    font-weight: 600;
}

.hero-subtitle {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-lg);
    font-family: var(--font-subheading);
}

.hero-description {
    margin-bottom: var(--spacing-xl);
    font-size: 1.1rem;
}

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

.hero-image {
    flex: 1;
    max-width: 500px;
    margin-left: var(--spacing-xl);
}

/* === Section Styles === */
section {
    padding: var(--spacing-3xl) 0;
}

.section-title {
    text-align: center;
    margin-bottom: var(--spacing-xl);
    position: relative;
    padding-bottom: var(--spacing-md);
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 3px;
    background-color: var(--primary);
}

/* === Service Page Styles === */
.service-page {
    padding-top: 80px;
}

.service-hero {
    background-color: var(--primary);
    color: var(--text-light);
    padding: var(--spacing-2xl) 0;
    text-align: center;
}

.service-hero-content {
    max-width: 800px;
    margin: 0 auto;
}

.service-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-md);
    color: var(--secondary);
}

.service-title {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-md);
}

.service-subtitle {
    font-size: 1.2rem;
    font-family: var(--font-subheading);
    max-width: 600px;
    margin: 0 auto;
}

.service-content {
    padding: var(--spacing-2xl) 0;
}

.service-section {
    margin-bottom: var(--spacing-2xl);
}

.section-content {
    max-width: 800px;
    margin: 0 auto;
}

.modality {
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-lg);
    border-bottom: 1px solid var(--border-light);
}

.modality:last-child {
    border-bottom: none;
    padding-bottom: 0;
}

.modality-icon {
    font-size: 1.5rem;
    color: var(--primary);
    margin-bottom: var(--spacing-sm);
}

.modality-title {
    font-size: 1.3rem;
    margin-bottom: var(--spacing-sm);
}

.benefits-list {
    list-style-position: inside;
    padding-left: var(--spacing-md);
}

.benefits-list li {
    margin-bottom: var(--spacing-sm);
}

.service-cta {
    text-align: center;
    margin-top: var(--spacing-2xl);
}

/* === Footer === */
.footer {
    background-color: var(--bg-dark);
    color: var(--text-light);
    padding: var(--spacing-2xl) 0 var(--spacing-md);
}

.footer-content {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    margin-bottom: var(--spacing-xl);
}

.footer-logo {
    flex: 1;
    min-width: 200px;
    margin-bottom: var(--spacing-lg);
}

.footer-logo h3 {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-sm);
}

.footer-links {
    flex: 1;
    min-width: 200px;
    margin-bottom: var(--spacing-lg);
    display: flex;
    flex-direction: column;
}

.footer-links a {
    color: var(--secondary) !important;
    margin-bottom: var(--spacing-sm);
}

.footer-links a:hover {
    text-decoration: underline;
}

.footer-contact {
    flex: 1;
    min-width: 200px;
    margin-bottom: var(--spacing-lg);
}

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--border-dark);
    font-size: 0.9rem;
    color: var(--text-muted);
}

/* === Responsive Styles === */
@media (max-width: 992px) {
    .hero-container {
        flex-direction: column;
        text-align: center;
    }
    
    .hero-content {
        max-width: 100%;
    }
    
    .hero-image {
        margin-left: 0;
        margin-top: var(--spacing-xl);
        max-width: 400px;
    }
    
    .hero-buttons {
        justify-content: center;
    }
}

@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 80px;
        left: -100%;
        flex-direction: column;
        background-color: var(--bg-white);
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: 0 10px 10px var(--shadow);
        padding: var(--spacing-lg) 0;
        z-index: 999;
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .nav-link {
        margin: var(--spacing-sm) 0;
    }
    
    .hamburger {
        display: flex;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-subtitle {
        font-size: 1.3rem;
    }
    
    .service-title {
        font-size: 2rem;
    }
}

@media (max-width: 576px) {
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-subtitle {
        font-size: 1.1rem;
    }
    
    .hero-buttons {
        flex-direction: column;
        gap: var(--spacing-sm);
    }
    
    .section-title {
        font-size: 1.8rem;
    }
    
    .footer-content {
        flex-direction: column;
    }
}