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

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


:root {
    /* Light Mode Colors */
    --bg-primary: #ffffff;
    --bg-secondary: #f8f9fa;
    --bg-tertiary: #e9ecef;
    --text-primary: #212529;
    --text-secondary: #6c757d;
    --accent-primary: #8B4513;
    --accent-secondary: #CD853F;
    --accent-tertiary: #D2691E;
    --accent-quaternary: #8B0000;
    --border-color: #dee2e6;
    --shadow: rgba(0, 0, 0, 0.1);
    --shadow-hover: rgba(0, 0, 0, 0.15);
    --overlay: rgba(0, 0, 0, 0.5);
}

body.dark-mode {
    /* Dark Mode Colors */
    --bg-primary: #1a1a1a;
    --bg-secondary: #2d2d2d;
    --bg-tertiary: #3a3a3a;
    --text-primary: #f8f9fa;
    --text-secondary: #adb5bd;
    --accent-primary: #CD853F;
    --accent-secondary: #DEB887;
    --accent-tertiary: #F4A460;
    --accent-quaternary: #DC143C;
    --border-color: #495057;
    --shadow: rgba(0, 0, 0, 0.3);
    --shadow-hover: rgba(0, 0, 0, 0.4);
    --overlay: rgba(0, 0, 0, 0.7);
}

/* Typography and Body */

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--bg-primary);
    width: 1280px;
    margin: 0 auto;
    transition: background-color 0.3s ease, color 0.3s ease;
}

h1, h2, h3, h4, h5, h6 {
    line-height: 1.2;
    margin-bottom: 1rem;
}

h1 {
    font-size: 2.5rem;
}

h2 {
    font-size: 2rem;
    color: var(--text-primary);
}

h3 {
    font-size: 1.5rem;
}

p {
    margin-bottom: 1rem;
}

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

a:hover {
    color: var(--accent-secondary);
}

/* Header and Navigation */

header {
    background-color: var(--bg-secondary);
    box-shadow: 0 2px 5px var(--shadow);
    position: sticky;
    top: 0;
    z-index: 1000;
    transition: background-color 0.3s ease;
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem 3rem;
}

.logo {
    font-size: 1.8rem;
    color: var(--accent-primary);
    margin: 0;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-links a {
    color: var(--text-primary);
    font-weight: 500;
    padding: 0.5rem 1rem;
    border-radius: 5px;
    transition: background-color 0.3s ease, color 0.3s ease;
}

.nav-links a:hover {
    background-color: var(--accent-primary);
    color: #ffffff;
}

.theme-toggle {
    background-color: var(--accent-primary);
    color: #ffffff;
    border: none;
    padding: 0.75rem 1.25rem;
    border-radius: 25px;
    cursor: pointer;
    font-size: 1.2rem;
    transition: background-color 0.3s ease, transform 0.2s ease;
}

.theme-toggle:hover {
    background-color: var(--accent-secondary);
    transform: scale(1.05);
}

.theme-icon {
    display: inline-block;
}

/* Hero Section */

.hero {
    background: linear-gradient(135deg, var(--accent-primary) 0%, var(--accent-quaternary) 100%);
    color: #ffffff;
    padding: 6rem 3rem;
    text-align: center;
}

.hero h2 {
    font-size: 3rem;
    margin-bottom: 1.5rem;
    color: #ffffff;
}

.hero p {
    font-size: 1.3rem;
    margin-bottom: 2rem;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.cta-button {
    display: inline-block;
    background-color: #ffffff;
    color: var(--accent-primary);
    padding: 1rem 2.5rem;
    border-radius: 30px;
    font-weight: 600;
    font-size: 1.1rem;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.cta-button:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.3);
}

/* Container and Sections */

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

section {
    padding: 5rem 0;
}

.section-subtitle {
    text-align: center;
    font-size: 1.2rem;
    color: var(--text-secondary);
    margin-bottom: 3rem;
}

/* About Section */

.about {
    background-color: var(--bg-secondary);
}

.about h2 {
    text-align: center;
    margin-bottom: 3rem;
}

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

.about-card {
    background-color: var(--bg-primary);
    padding: 2.5rem;
    border-radius: 10px;
    box-shadow: 0 4px 10px var(--shadow);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.about-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 6px 15px var(--shadow-hover);
}

.about-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
    display: block;
}

.about-card h3 {
    color: var(--accent-primary);
    margin-bottom: 1rem;
}

.about-card p {
    color: var(--text-secondary);
    margin-bottom: 0;
}

/* Featured Vinyl Section */

.featured-vinyl {
    background-color: var(--bg-primary);
}

.featured-vinyl h2 {
    text-align: center;
    margin-bottom: 1rem;
}

.vinyl-controls {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 3rem;
    flex-wrap: wrap;
}

.vinyl-btn {
    background-color: var(--bg-secondary);
    color: var(--text-primary);
    border: 2px solid var(--border-color);
    padding: 0.75rem 1.5rem;
    border-radius: 5px;
    cursor: pointer;
    font-size: 1rem;
    font-weight: 500;
    transition: all 0.3s ease;
}

.vinyl-btn:hover {
    background-color: var(--accent-primary);
    color: #ffffff;
    border-color: var(--accent-primary);
}

.vinyl-btn.active {
    background-color: var(--accent-primary);
    color: #ffffff;
    border-color: var(--accent-primary);
}

.vinyl-display {
    position: relative;
    min-height: 500px;
}

.vinyl-item {
    display: none;
    background-color: var(--bg-secondary);
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 4px 15px var(--shadow);
}

.vinyl-item.active {
    display: block;
    animation: fadeIn 0.5s ease;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.vinyl-item img {
    width: 100%;
    height: 800px;
    object-fit: cover;
}

.vinyl-info {
    padding: 2.5rem;
}

.vinyl-info h3 {
    color: var(--accent-primary);
    font-size: 2rem;
    margin-bottom: 1.5rem;
}

.vinyl-info p {
    color: var(--text-secondary);
    font-size: 1.1rem;
    line-height: 1.8;
    margin-bottom: 0.75rem;
}

.vinyl-info p:last-child {
    margin-bottom: 0;
}

/* Contest/Game Section */

.contest {
    background-color: var(--bg-secondary);
}

.contest h2 {
    text-align: center;
    margin-bottom: 1rem;
}

.game-container {
    max-width: 600px;
    margin: 0 auto;
    background-color: var(--bg-primary);
    padding: 3rem;
    border-radius: 10px;
    box-shadow: 0 4px 15px var(--shadow);
}

.game-instructions {
    text-align: center;
    margin-bottom: 2rem;
    font-size: 1.1rem;
    color: var(--text-secondary);
}

.game-input-area {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin-bottom: 2rem;
}

.game-input-area label {
    font-weight: 600;
    color: var(--text-primary);
}

#guess-input {
    padding: 0.75rem;
    border: 2px solid var(--border-color);
    border-radius: 5px;
    font-size: 1rem;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    transition: border-color 0.3s ease;
}

#guess-input:focus {
    outline: none;
    border-color: var(--accent-primary);
}

#guess-submit {
    background-color: var(--accent-primary);
    color: #ffffff;
    border: none;
    padding: 1rem 2rem;
    border-radius: 5px;
    cursor: pointer;
    font-size: 1.1rem;
    font-weight: 600;
    transition: background-color 0.3s ease, transform 0.2s ease;
}

#guess-submit:hover {
    background-color: var(--accent-secondary);
    transform: translateY(-2px);
}

.game-result {
    text-align: center;
    padding: 1.5rem;
    border-radius: 5px;
    font-size: 1.1rem;
    font-weight: 600;
    min-height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.game-result.success {
    background-color: var(--accent-secondary);
    color: #ffffff;
}

.game-result.error {
    background-color: var(--accent-quaternary);
    color: #ffffff;
}

/* Contact Form Section */

.contact {
    background-color: var(--bg-primary);
}

.contact h2 {
    text-align: center;
    margin-bottom: 1rem;
}

.contact-form {
    max-width: 700px;
    margin: 0 auto;
    background-color: var(--bg-secondary);
    padding: 3rem;
    border-radius: 10px;
    box-shadow: 0 4px 15px var(--shadow);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
    margin-bottom: 1.5rem;
    border: none;
    padding: 0;
}

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

.form-group fieldset {
    border: none;
    padding: 0;
    display: flex;
    gap: 2rem;
    margin-top: 0.5rem;
}

.required {
    color: var(--accent-quaternary);
}

.conditional-required {
    color: var(--text-secondary);
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 0.75rem;
    border: 2px solid var(--border-color);
    border-radius: 5px;
    font-size: 1rem;
    font-family: inherit;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    transition: border-color 0.3s ease;
}

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

.form-group input.error,
.form-group textarea.error {
    border-color: var(--accent-quaternary);
}

.radio-label {
    display: flex;
    align-items: center;
    cursor: pointer;
    font-weight: normal;
}

.radio-label input[type="radio"] {
    width: auto;
    margin-right: 0.5rem;
    cursor: pointer;
}

.error-message {
    display: block;
    color: var(--accent-quaternary);
    font-size: 0.9rem;
    margin-top: 0.5rem;
    min-height: 1.2rem;
}

.submit-button {
    width: 100%;
    background-color: var(--accent-primary);
    color: #ffffff;
    border: none;
    padding: 1rem 2rem;
    border-radius: 5px;
    cursor: pointer;
    font-size: 1.1rem;
    font-weight: 600;
    transition: background-color 0.3s ease, transform 0.2s ease;
}

.submit-button:hover {
    background-color: var(--accent-secondary);
    transform: translateY(-2px);
}

.form-success {
    max-width: 700px;
    margin: 2rem auto 0;
    background-color: var(--accent-secondary);
    color: #ffffff;
    padding: 2rem;
    border-radius: 10px;
    text-align: center;
}

.form-success.hidden {
    display: none;
}

.form-success h3 {
    margin-bottom: 1rem;
    color: #ffffff;
}

.form-success p {
    margin-bottom: 0.5rem;
}

/* Footer */

footer {
    background-color: var(--bg-secondary);
    color: var(--text-secondary);
    padding: 3rem 0 1rem;
    border-top: 1px solid var(--border-color);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-section h3,
.footer-section h4 {
    color: var(--text-primary);
    margin-bottom: 1rem;
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: 0.5rem;
}

.footer-section a {
    color: var(--text-secondary);
}

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

.footer-section address {
    font-style: normal;
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid var(--border-color);
    font-size: 0.9rem;
    margin: 0;
}