/* ========================================
   Variables & Reset
   ======================================== */
:root {
    /* Colors */
    --color-primary: #8B2332; /* Deep burgundy red */
    --color-primary-dark: #6B1D28;
    --color-primary-light: #A84455;
    --color-secondary: #1a1a1a; /* Near black */
    --color-accent: #ffffff;
    --color-background: #faf8f5; /* Warm off-white */
    --color-background-alt: #f0ece6;
    --color-text: #2a2a2a;
    --color-text-light: #5a5a5a;
    --color-border: #e0dcd4;
    
    /* Typography */
    --font-family: 'EB Garamond', Garamond, 'Times New Roman', serif;
    --font-size-base: 1.125rem;
    --line-height-base: 1.7;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2.5rem;
    --spacing-xl: 4rem;
    
    /* Layout */
    --max-width: 1200px;
    --header-height: 70px;
}

/* Reset */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

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

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: var(--line-height-base);
    color: var(--color-text);
    background-color: var(--color-background);
}

/* Accessibility */
.skip-link {
    position: absolute;
    top: -100px;
    left: 0;
    background: var(--color-primary);
    color: var(--color-accent);
    padding: var(--spacing-sm);
    z-index: 1000;
    transition: top 0.3s;
}

.skip-link:focus {
    top: 0;
}

/* ========================================
   Typography
   ======================================== */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.3;
    margin-bottom: var(--spacing-sm);
}

h1 {
    font-size: 2.5rem;
}

h2 {
    font-size: 2rem;
    color: var(--color-primary);
    border-bottom: 2px solid var(--color-primary);
    padding-bottom: var(--spacing-xs);
    margin-bottom: var(--spacing-md);
}

h3 {
    font-size: 1.5rem;
    color: var(--color-secondary);
}

h4 {
    font-size: 1.25rem;
}

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

a {
    color: var(--color-primary);
    text-decoration: none;
    transition: color 0.2s;
}

a:hover, a:focus {
    color: var(--color-primary-dark);
    text-decoration: underline;
}

a:focus {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

/* ========================================
   Layout
   ======================================== */
.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

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

section:nth-child(even) {
    background-color: var(--color-background-alt);
}

/* ========================================
   Header & Navigation
   ======================================== */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--header-height);
    background-color: var(--color-secondary);
    z-index: 100;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.nav-container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 var(--spacing-md);
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 100%;
}

.nav-logo {
    color: var(--color-accent);
    font-size: 1.5rem;
    font-weight: 600;
    text-decoration: none;
}

.nav-logo:hover {
    color: var(--color-primary-light);
    text-decoration: none;
}

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

.nav-links a {
    color: var(--color-accent);
    text-decoration: none;
    font-size: 1rem;
    padding: var(--spacing-xs) 0;
    position: relative;
}

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

.nav-links a:hover::after,
.nav-links a:focus::after {
    width: 100%;
}

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

/* Mobile Navigation */
.nav-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-xs);
}

.hamburger {
    display: block;
    width: 24px;
    height: 2px;
    background-color: var(--color-accent);
    position: relative;
}

.hamburger::before,
.hamburger::after {
    content: '';
    position: absolute;
    width: 24px;
    height: 2px;
    background-color: var(--color-accent);
    left: 0;
}

.hamburger::before {
    top: -7px;
}

.hamburger::after {
    bottom: -7px;
}

/* ========================================
   Buttons
   ======================================== */
.btn {
    display: inline-block;
    padding: var(--spacing-sm) var(--spacing-md);
    font-family: var(--font-family);
    font-size: 1rem;
    text-decoration: none;
    border: 2px solid transparent;
    cursor: pointer;
    transition: all 0.3s;
    text-align: center;
}

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

.btn-primary:hover,
.btn-primary:focus {
    background-color: var(--color-primary-dark);
    border-color: var(--color-primary-dark);
    color: var(--color-accent);
    text-decoration: none;
}

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

.btn-secondary:hover,
.btn-secondary:focus {
    background-color: var(--color-primary);
    color: var(--color-accent);
    text-decoration: none;
}

/* ========================================
   Hero Section
   ======================================== */
.hero-section {
    padding-top: calc(var(--header-height) + var(--spacing-xl));
    background: linear-gradient(135deg, var(--color-background) 0%, var(--color-background-alt) 100%);
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: var(--spacing-xl);
    align-items: center;
}

.hero-image {
    display: flex;
    justify-content: center;
}

.hero-photo {
    width: 300px;
    height: 400px;
    object-fit: cover;
    display: block;
}

.placeholder-image {
    width: 300px;
    height: 400px;
    background-color: var(--color-border);
    display: flex;
    align-items: center;
    justify-content: center;
    border: 2px dashed var(--color-text-light);
}

.placeholder-text {
    color: var(--color-text-light);
    font-style: italic;
}

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

.hero-text h1 {
    margin-bottom: var(--spacing-xs);
}

.tagline {
    font-size: 1.25rem;
    color: var(--color-primary);
    margin-bottom: var(--spacing-xs);
}

.location {
    color: var(--color-text-light);
    margin-bottom: var(--spacing-md);
}

.hero-cta {
    display: flex;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
    margin-top: var(--spacing-md);
}

/* ========================================
   About Section
   ======================================== */
.about-content {
    max-width: 800px;
}

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

.about-details {
    margin-top: var(--spacing-md);
}

.about-details > summary {
    cursor: pointer;
    font-weight: 600;
    color: var(--color-primary);
    font-size: 1.05rem;
    list-style: none;
    display: inline-block;
    padding: var(--spacing-xs) 0;
    user-select: none;
}

.about-details > summary::-webkit-details-marker {
    display: none;
}

.about-details > summary::before {
    content: "\25B8  ";
    display: inline-block;
    margin-right: 0.25rem;
    transition: transform 0.2s ease;
}

.about-details[open] > summary::before {
    content: "\25BE  ";
}

.about-details > summary:hover {
    color: var(--color-secondary);
}

.about-details-body {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: var(--spacing-xl);
    margin-top: var(--spacing-md);
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--color-border);
}

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

.about-bio p:last-child {
    margin-bottom: 0;
}

.about-teachers h3 {
    font-size: 1.05rem;
    color: var(--color-secondary);
    margin-bottom: var(--spacing-sm);
}

.teachers-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.teachers-list li {
    padding: var(--spacing-xs) 0;
    border-bottom: 1px solid var(--color-border);
    font-size: 0.95rem;
    line-height: 1.4;
}

.teachers-list li:last-child {
    border-bottom: none;
}

/* ========================================
   Music Section
   ======================================== */
.section-intro {
    font-size: 1.125rem;
    color: var(--color-text-light);
    margin-bottom: var(--spacing-lg);
}

.section-subtitle {
    font-size: 1rem;
    font-style: italic;
    color: var(--color-text-light);
    margin-top: calc(-1 * var(--spacing-md));
    margin-bottom: var(--spacing-lg);
}

.under-construction {
    max-width: 700px;
    margin: var(--spacing-xl) auto;
    padding: var(--spacing-xl) var(--spacing-lg);
    background-color: var(--color-background);
    border: 2px dashed var(--color-text-light);
    border-radius: 8px;
    text-align: center;
}

.under-construction-icon {
    display: block;
    font-size: 3rem;
    color: var(--color-primary);
    line-height: 1;
    margin-bottom: var(--spacing-sm);
}

.under-construction-title {
    color: var(--color-primary);
    font-size: 1.5rem;
    margin-bottom: var(--spacing-sm);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.under-construction-text {
    color: var(--color-text-light);
    font-size: 1rem;
    max-width: 480px;
    margin: 0 auto;
}

.audio-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
}

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

.placeholder-audio {
    width: 100%;
    aspect-ratio: 1;
    max-width: 200px;
    margin: 0 auto var(--spacing-sm);
    background-color: var(--color-border);
    display: flex;
    align-items: center;
    justify-content: center;
    border: 2px dashed var(--color-text-light);
    border-radius: 4px;
}

.track-info h4 {
    margin-bottom: 0;
    font-size: 1.1rem;
}

.track-info p {
    font-size: 0.9rem;
    color: var(--color-text-light);
    margin-bottom: 0;
}

.video-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

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

.placeholder-video {
    width: 100%;
    aspect-ratio: 16/9;
    background-color: var(--color-border);
    display: flex;
    align-items: center;
    justify-content: center;
    border: 2px dashed var(--color-text-light);
    margin-bottom: var(--spacing-sm);
}

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

.social-link {
    padding: var(--spacing-sm) var(--spacing-md);
    border: 2px solid var(--color-secondary);
    color: var(--color-secondary);
    transition: all 0.3s;
}

.social-link:hover {
    background-color: var(--color-secondary);
    color: var(--color-accent);
    text-decoration: none;
}

/* ========================================
   Ensemble Section
   ======================================== */
.ensemble-options {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.ensemble-card {
    padding: var(--spacing-lg);
    background-color: var(--color-background);
    border: 1px solid var(--color-border);
    border-radius: 4px;
}

.ensemble-card h3 {
    color: var(--color-primary);
}

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

.event-types {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    list-style: none;
    margin-bottom: var(--spacing-md);
}

.event-types li {
    padding: var(--spacing-xs) var(--spacing-md);
    background-color: var(--color-secondary);
    color: var(--color-accent);
    border-radius: 20px;
    font-size: 0.95rem;
}

.pricing-note {
    color: var(--color-text-light);
    font-style: italic;
}

/* ========================================
   Duo Section
   ======================================== */
.duo-content {
    max-width: 800px;
    margin-bottom: var(--spacing-lg);
}

.duo-media {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin: var(--spacing-lg) 0;
}

.duo-audio-placeholder,
.duo-video-placeholder {
    width: 150px;
    height: 150px;
    background-color: var(--color-border);
    display: flex;
    align-items: center;
    justify-content: center;
    border: 2px dashed var(--color-text-light);
    flex-shrink: 0;
}

.duo-audio-info h4 {
    margin-bottom: var(--spacing-xs);
}

/* ========================================
   Lessons Section
   ======================================== */
.lesson-options {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.lesson-card {
    padding: var(--spacing-lg);
    background-color: var(--color-background);
    border: 1px solid var(--color-border);
    border-top: 4px solid var(--color-primary);
    text-align: center;
    position: relative;
}

.lesson-card h3 {
    color: var(--color-secondary);
}

.lesson-card-featured {
    border: 2px solid var(--color-primary);
    background-color: var(--color-background);
}

.lesson-card-single {
    border-top: 4px solid var(--color-border);
    opacity: 0.9;
}

.lesson-card-wide {
    grid-column: 1 / -1;
    display: grid;
    grid-template-columns: 1.5fr 1.5fr auto;
    align-items: center;
    gap: var(--spacing-lg);
    text-align: left;
}

.lesson-card-wide .lesson-card-wide-text {
    text-align: left;
}

.lesson-card-wide .lesson-price {
    margin-bottom: var(--spacing-sm);
}

.lesson-card-wide ul.lesson-details {
    margin-bottom: 0;
}

.lesson-badge {
    display: inline-block;
    background-color: var(--color-primary);
    color: var(--color-accent);
    font-size: 0.75rem;
    padding: 4px 12px;
    border-radius: 20px;
    margin-bottom: var(--spacing-sm);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.lesson-price {
    font-size: 2rem;
    font-weight: 600;
    color: var(--color-primary);
    margin-bottom: var(--spacing-md);
}

.lesson-price span {
    font-size: 1rem;
    font-weight: 400;
    color: var(--color-text-light);
}

.lesson-per-lesson {
    font-size: 0.85rem;
    color: var(--color-text-light);
    font-style: italic;
    margin-top: calc(-1 * var(--spacing-sm));
    margin-bottom: var(--spacing-md);
}

.lesson-card-kids .lesson-badge {
    background-color: var(--color-accent);
    color: var(--color-primary);
    border: 1px solid var(--color-primary);
}

.lesson-details {
    list-style: none;
    margin-bottom: var(--spacing-md);
    text-align: left;
}

.lesson-details li {
    padding: var(--spacing-xs) 0;
    border-bottom: 1px solid var(--color-border);
}

.lesson-details li:last-child {
    border-bottom: none;
}

.lesson-info {
    max-width: 600px;
    margin-bottom: var(--spacing-xl);
}

.lesson-info h3 {
    margin-top: var(--spacing-md);
}

.lesson-info h3:first-child {
    margin-top: 0;
}

.lesson-info h4 {
    margin-top: var(--spacing-md);
}

.lesson-info .lesson-mission {
    margin-top: var(--spacing-lg);
    padding: var(--spacing-md) var(--spacing-lg);
    background-color: var(--color-primary);
    color: var(--color-accent);
    border-radius: 8px;
    font-size: 1.25rem;
    font-weight: 700;
    letter-spacing: 0.5px;
    text-align: center;
}

.skills-list {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    list-style: none;
}

.skills-list li {
    padding: var(--spacing-xs) var(--spacing-md);
    background-color: var(--color-primary);
    color: var(--color-accent);
    border-radius: 20px;
    font-size: 0.95rem;
}

.calendar-section {
    max-width: 800px;
}

.calendar-embed {
    margin-top: var(--spacing-md);
    background-color: var(--color-background);
    padding: var(--spacing-sm);
    border: 1px solid var(--color-border);
}

/* ========================================
   Contact Section
   ======================================== */
.contact-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: var(--spacing-xl);
}

.contact-form-wrapper {
    background-color: var(--color-background);
    padding: var(--spacing-lg);
    border: 1px solid var(--color-border);
}

.contact-form-wrapper h3 {
    margin-bottom: var(--spacing-md);
}

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

.form-group label {
    display: block;
    margin-bottom: var(--spacing-xs);
    font-weight: 500;
}

.required {
    color: var(--color-primary);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: var(--spacing-sm);
    font-family: var(--font-family);
    font-size: 1rem;
    border: 1px solid var(--color-border);
    background-color: var(--color-accent);
    transition: border-color 0.2s;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-primary);
}

.contact-info {
    padding: var(--spacing-lg);
    background-color: var(--color-background);
    border: 1px solid var(--color-border);
}

.contact-info h3 {
    margin-bottom: var(--spacing-sm);
}

.contact-info > p {
    margin-bottom: var(--spacing-md);
}

.contact-detail {
    margin-bottom: var(--spacing-md);
}

.contact-detail h4 {
    font-size: 1rem;
    margin-bottom: var(--spacing-xs);
}

.contact-detail a {
    font-size: 1.125rem;
}

.response-time {
    margin-top: var(--spacing-lg);
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--color-border);
    color: var(--color-text-light);
    font-style: italic;
}

/* ========================================
   Footer
   ======================================== */
.site-footer {
    background-color: var(--color-secondary);
    color: var(--color-accent);
    padding: var(--spacing-lg) 0;
    text-align: center;
}

.site-footer p {
    margin-bottom: var(--spacing-xs);
}

.site-footer p:last-child {
    margin-bottom: 0;
    font-size: 0.9rem;
    color: var(--color-text-light);
}

/* ========================================
   Responsive Design
   ======================================== */
@media (max-width: 1024px) {
    .audio-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    :root {
        --spacing-xl: 2.5rem;
        --spacing-lg: 1.5rem;
    }
    
    h1 {
        font-size: 2rem;
    }
    
    h2 {
        font-size: 1.75rem;
    }
    
    /* Mobile Navigation */
    .nav-toggle {
        display: block;
    }
    
    .nav-links {
        position: absolute;
        top: var(--header-height);
        left: 0;
        right: 0;
        background-color: var(--color-secondary);
        flex-direction: column;
        padding: var(--spacing-md);
        gap: var(--spacing-md);
        display: none;
    }
    
    .nav-links.active {
        display: flex;
    }
    
    .nav-links a {
        padding: var(--spacing-sm);
        display: block;
    }
    
    /* Hero */
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .hero-text {
        text-align: center;
    }
    
    .hero-cta {
        justify-content: center;
    }
    
    .placeholder-image {
        width: 250px;
        height: 330px;
    }

    .hero-photo {
        width: 250px;
        height: 330px;
    }
    
    /* Grids */
    .ensemble-options,
    .contact-grid {
        grid-template-columns: 1fr;
    }
    
    .lesson-options {
        grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    }
    
    .video-grid {
        grid-template-columns: 1fr;
    }
    
    .duo-media {
        flex-direction: column;
        text-align: center;
    }

    .about-details-body {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }
    
    /* Calendar */
    .calendar-embed iframe {
        height: 350px;
    }
}

@media (max-width: 480px) {
    :root {
        --font-size-base: 1rem;
    }
    
    .audio-grid {
        grid-template-columns: 1fr;
    }
    
    .placeholder-audio {
        max-width: 150px;
    }
    
    .hero-cta {
        flex-direction: column;
    }
    
    .btn {
        width: 100%;
    }
}

/* ========================================
   Reduced Motion
   ======================================== */
@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }
    
    * {
        transition-duration: 0.01ms !important;
    }
}