/* Modern CSS Reset */
*, *::before, *::after {
    box-sizing: border-box;
}

/* Root Variables - Based on #669977 theme */
:root {
    --primary-color: #669977;
    --secondary-color: #7bac8c;
    --accent-color: #edf5f0;
    --text-dark: #333333;
    --text-light: #555555;
    --background: #ffffff;
    --border-light: #e0e8e4;
    --success-color: #4d8061;
    --shadow: 0 2px 5px rgba(0,0,0,0.1);
    --shadow-hover: 0 4px 15px rgba(0,0,0,0.15);
    --border-radius: 3px;
    --transition: all 0.3s ease;
}

/* Base Styles */
body {
    font-family: 'Open Sans', 'Lato', -apple-system, BlinkMacSystemFont, sans-serif;
    line-height: 1.7;
    color: var(--text-dark);
    background: var(--background);
    margin: 0;
    padding: 0;
    font-size: 16px;
    font-weight: 400;
}

.container {
    max-width: 1080px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: 'Lato', 'Open Sans', sans-serif;
    font-weight: 500;
    line-height: 1.3;
    margin-bottom: 1rem;
    color: var(--primary-color);
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.25rem; }

p {
    margin-bottom: 1rem;
    color: var(--text-light);
}

/* Links */
a {
    color: var(--primary-color);
    text-decoration: none;
    transition: var(--transition);
}

a:hover {
    color: var(--secondary-color);
    text-decoration: none;
}

/* Header */
header {
    background: #fff;
    color: var(--text-dark);
    padding: 1rem 0;
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 100;
    border-bottom: 1px solid var(--border-light);
}

/* Hero Banner */
.hero-banner {
    position: relative;
    height: 300px;
    background-size: cover !important;
    background-position: center !important;
    margin-bottom: 2rem;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: white;
    overflow: hidden;
    background-color: var(--primary-color); /* Fallback color */
}

.hero-banner::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(102, 153, 119, 0.7), rgba(77, 128, 97, 0.8));
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 800px;
    padding: 0 20px;
}

.hero-banner h1 {
    color: white;
    font-size: 2.5rem;
    margin-bottom: 1rem;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.5);
}

.hero-banner p {
    color: white;
    font-size: 1.2rem;
    margin-bottom: 1.5rem;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.5);
}

.home-banner {
    background-image: url('../img/banners/tmj-hero.jpg');
}

.overview-banner {
    background-image: url('../img/banners/overview-hero.jpg');
}

.symptoms-banner {
    background-image: url('../img/banners/symptoms-hero.jpg');
}

.causes-banner {
    background-image: url('../img/banners/causes-hero.jpg');
}

.treatment-banner {
    background-image: url('../img/banners/treatment-hero.jpg');
}

.faq-banner {
    background-image: url('../img/banners/faq-hero.jpg');
}

.about-banner {
    background-image: url('../img/banners/about-hero.jpg');
}

.appointment-banner {
    background-image: url('../img/banners/appointment-hero.jpg');
}

.directions-banner {
    background-image: url('../img/banners/directions-hero.jpg');
}

@media (max-width: 768px) {
    .hero-banner {
        height: 200px;
    }
    
    .hero-banner h1 {
        font-size: 1.8rem;
    }
    
    .hero-banner p {
        font-size: 1rem;
    }
}

.header-content {
    text-align: center;
    padding: 1rem 0;
}

header h1 {
    color: var(--primary-color);
    margin-bottom: 0.25rem;
    font-size: 2.2rem;
    font-weight: 600;
}

.tagline {
    font-size: 1rem;
    color: var(--text-light);
    margin-bottom: 1.5rem;
}

/* Navigation */
nav {
    border-top: 1px solid var(--border-light);
    padding-top: 0.5rem;
}

nav ul {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 0.5rem;
}

nav li {
    display: inline-block;
}

nav a {
    color: var(--text-dark);
    padding: 0.5rem 1rem;
    border-radius: var(--border-radius);
    transition: var(--transition);
    font-weight: 500;
    text-transform: uppercase;
    font-size: 0.9rem;
    letter-spacing: 0.5px;
}

nav a.active {
    color: var(--primary-color);
    font-weight: 600;
}

nav a:hover {
    color: var(--primary-color);
    background: var(--accent-color);
    text-decoration: none;
}

/* Main Layout */
main {
    display: grid;
    grid-template-columns: 1fr 300px;
    gap: 2rem;
    max-width: 1080px;
    margin: 2rem auto;
    padding: 0 20px;
}

/* Article Styles */
article {
    background: var(--background);
    padding: 2rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    border: 1px solid var(--border-light);
}

article h1 {
    color: var(--primary-color);
    margin-top: 0;
    margin-bottom: 1.5rem;
    font-size: 2.2rem;
    border-bottom: 1px solid var(--border-light);
    padding-bottom: 0.5rem;
}
    background: var(--background);
    padding: 2rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    border: 1px solid var(--border-light);
}

article h2, article h3, article h4 {
    color: var(--primary-color);
    border-bottom: 1px solid var(--border-light);
    padding-bottom: 0.5rem;
    margin-top: 2rem;
}

article h2:first-child,
article h3:first-child {
    margin-top: 0;
}

/* Video Responsive */
.video-container {
    position: relative;
    padding-bottom: 56.25%; /* 16:9 aspect ratio */
    height: 0;
    overflow: hidden;
    max-width: 100%;
    margin: 2rem 0;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
}

.video-container iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: 0;
}

/* Sidebar */
main > section {
    background: var(--background);
    padding: 1.5rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    border: 1px solid var(--border-light);
    height: fit-content;
}

.contact-info {
    background: var(--background);
    padding: 1.5rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    border: 1px solid var(--border-light);
    margin: 2rem auto;
    max-width: 1080px;
}

section h1 {
    background: var(--primary-color);
    color: white;
    margin: -1.5rem -1.5rem 1rem -1.5rem;
    padding: 1rem 1.5rem;
    border-radius: var(--border-radius) var(--border-radius) 0 0;
    font-size: 1.25rem;
}

section ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

section li {
    margin-bottom: 0.5rem;
}

section a {
    display: block;
    padding: 0.75rem 1rem;
    background: var(--accent-color);
    border-radius: var(--border-radius);
    transition: var(--transition);
    font-weight: 500;
}

section a:hover {
    background: var(--primary-color);
    color: white;
    text-decoration: none;
    transform: translateY(-2px);
    box-shadow: var(--shadow-hover);
}

/* Footer */
footer {
    background: var(--primary-color);
    color: white;
    text-align: center;
    padding: 2rem 0;
    margin-top: 3rem;
}

footer p {
    color: white;
    opacity: 0.9;
}

/* Call to Action */
.cta-container {
    text-align: center;
    margin: 2rem 0;
}

.cta-button {
    font-size: 1.1rem;
    padding: 0.75rem 2rem;
    background: var(--primary-color);
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
    color: white;
    border-radius: var(--border-radius);
}

.cta-button:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 12px rgba(0,0,0,0.15);
    color: white;
    background: var(--secondary-color);
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    background: var(--primary-color);
    color: white;
    border: none;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: var(--transition);
    font-weight: 500;
    text-decoration: none;
}

.btn:hover {
    background: var(--secondary-color);
    transform: translateY(-2px);
    box-shadow: var(--shadow-hover);
    text-decoration: none;
    color: white;
}

/* Lists */
article ul {
    padding-left: 1.5rem;
}

article li {
    margin-bottom: 0.5rem;
    color: var(--text-light);
}

/* Back to Top Link */
.back-to-top-link {
    display: inline-block;
    background: var(--primary-color);
    color: white;
    padding: 0.5rem 1rem;
    border-radius: var(--border-radius);
    margin: 1rem 0;
    transition: var(--transition);
}

.back-to-top-link:hover {
    background: var(--secondary-color);
    text-decoration: none;
    color: white;
}

/* FAQ Styling */
.faq-container {
    margin: 2rem 0;
}

.faq-item {
    margin-bottom: 1.5rem;
    border: 1px solid var(--border-light);
    border-radius: var(--border-radius);
    overflow: hidden;
}

.faq-item h4 {
    background: var(--accent-color);
    padding: 1rem;
    margin: 0;
    color: var(--primary-color);
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    border-bottom: none;
}

.faq-item h4:hover {
    background: var(--primary-color);
    color: white;
}

.faq-item p {
    padding: 1rem;
    margin: 0;
}

/* Doctor Profile */
.doctor-profile {
    margin: 1rem 0;
}

.profile-content {
    display: flex;
    gap: 2rem;
    margin: 1.5rem 0;
    align-items: flex-start;
}

.profile-image {
    max-width: 200px;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
}

.profile-details {
    flex: 1;
}

.profile-details h3 {
    margin-top: 0;
    color: var(--primary-color);
    font-size: 1.2rem;
}

.profile-details ul {
    padding-left: 1.5rem;
    margin-bottom: 1.5rem;
}

.profile-details li {
    margin-bottom: 0.5rem;
}

/* Mobile Menu */
.menu-toggle {
    display: none;
    background: transparent;
    border: none;
    color: var(--text-dark);
    font-size: 1rem;
    padding: 0.5rem;
    cursor: pointer;
    margin: 1rem auto;
    border-radius: var(--border-radius);
    position: relative;
    width: 40px;
    height: 40px;
}

.hamburger {
    position: relative;
    display: block;
    background: var(--text-dark);
    width: 24px;
    height: 2px;
    margin: 0 auto;
    transition: var(--transition);
}

.hamburger:before,
.hamburger:after {
    content: '';
    position: absolute;
    background: var(--text-dark);
    width: 24px;
    height: 2px;
    transition: var(--transition);
}

.hamburger:before {
    top: -8px;
}

.hamburger:after {
    bottom: -8px;
}

.menu-toggle.active .hamburger {
    background: transparent;
}

.menu-toggle.active .hamburger:before {
    transform: rotate(45deg);
    top: 0;
}

.menu-toggle.active .hamburger:after {
    transform: rotate(-45deg);
    bottom: 0;
}

/* Feature Boxes */
.feature-boxes {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin: 2rem 0;
}

.feature-box {
    background: var(--accent-color);
    padding: 1.5rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    transition: var(--transition);
    border: 1px solid var(--border-light);
}

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

.feature-box h3 {
    color: var(--primary-color);
    margin-top: 0;
    border-bottom: 1px solid var(--border-light);
    padding-bottom: 0.5rem;
    margin-bottom: 1rem;
}

.feature-box p {
    margin-bottom: 1.5rem;
}

.feature-box .btn {
    display: inline-block;
    padding: 0.5rem 1rem;
    background: var(--primary-color);
    color: white;
    border-radius: var(--border-radius);
    text-decoration: none;
    transition: var(--transition);
}

.feature-box .btn:hover {
    background: var(--secondary-color);
}

/* Responsive Design */
@media (max-width: 768px) {
    .menu-toggle {
        display: block;
    }
    
    nav {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: white;
        box-shadow: 0 5px 10px rgba(0,0,0,0.1);
        z-index: 100;
        padding: 1rem 0;
    }
    
    nav.active {
        display: block;
    }
    
    nav ul {
        flex-direction: column;
        align-items: center;
    }
    
    nav a {
        padding: 0.75rem 1.5rem;
        margin: 0.25rem 0;
        display: block;
        text-align: center;
    }
    
    main {
        grid-template-columns: 1fr;
        gap: 1rem;
        margin: 1rem auto;
    }
    
    .contact-info {
        margin-top: 2rem;
    }
    
    header h1 {
        font-size: 1.8rem;
    }
    
    article {
        padding: 1.5rem;
    }
    
    .profile-content {
        flex-direction: column;
        gap: 1rem;
    }
    
    .profile-image {
        max-width: 100%;
        margin-bottom: 1rem;
    }
}

@media (max-width: 480px) {
    .container, main {
        padding: 0 15px;
    }
    
    header {
        padding: 1rem 0;
    }
    
    header h1 {
        font-size: 1.5rem;
    }
    
    article {
        padding: 1rem;
    }
    
    section {
        padding: 1rem;
    }
    
    section h1 {
        margin: -1rem -1rem 1rem -1rem;
        padding: 0.75rem 1rem;
    }
}

/* Accessibility */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Focus styles for keyboard navigation */
a:focus, button:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

/* Print styles */
@media print {
    header, nav, section, footer {
        display: none;
    }
    
    main {
        grid-template-columns: 1fr;
        margin: 0;
        padding: 0;
    }
    
    article {
        box-shadow: none;
        border: none;
        padding: 0;
    }
}