:root {
    --bg-color: #ffffff;
    --text-primary: #000000;
    --text-secondary: #4b5563;
    --text-light: #6b7280;
    --btn-primary-bg: #111827;
    --btn-primary-text: #ffffff;
    --btn-secondary-bg: #f3f4f6;
    --btn-secondary-text: #111827;
    --border-color: #e5e7eb;
    --font-serif: 'Playfair Display', serif;
    --font-sans: 'Inter', sans-serif;
    --error-color: #ef4444;
}

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

body {
    font-family: var(--font-sans);
    background-color: var(--bg-color);
    color: var(--text-primary);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    overflow-x: hidden;
    line-height: 1.5;
}

/* Language Switcher */
.lang-switch-container {
    position: absolute;
    top: 20px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    background: var(--btn-secondary-bg);
    border-radius: 9999px;
    padding: 4px;
    z-index: 100;
}

.lang-btn {
    background: transparent;
    border: none;
    padding: 6px 16px;
    border-radius: 9999px;
    font-size: 0.85rem;
    font-weight: 600;
    cursor: pointer;
    color: var(--text-secondary);
    transition: all 0.2s ease;
    font-family: var(--font-sans);
}

.lang-btn.active {
    background: var(--text-primary);
    color: var(--bg-color);
}

/* Logo & Layout */
.logo-container {
    text-align: center;
    margin: 80px 0 30px;
}

.main-logo {
    max-height: 28px;
    width: auto;
}

/* Container */
.container {
    width: 100%;
    max-width: 800px;
    padding: 0 20px 100px;
    position: relative;
}

/* Spotify Embed */
.spotify-embed {
    max-width: 600px;
    margin: 0 auto 30px;
}

/* Progress Bar */
.progress-container {
    width: 100%;
    height: 2px;
    background-color: var(--btn-secondary-bg);
    margin-bottom: 60px;
    border-radius: 2px;
    position: relative;
}

.progress-bar {
    position: absolute;
    top: 0;
    left: 0;
    height: 100%;
    background-color: var(--text-primary);
    width: 0%;
    transition: width 0.4s ease;
}

/* Steps */
.form-step {
    display: none;
    animation: fadeIn 0.4s ease forwards;
    width: 100%;
    text-align: center;
}

.form-step.active {
    display: block;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(5px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Typography */
.serif-heading {
    font-family: var(--font-serif);
    font-size: 4.5rem;
    font-weight: 400;
    line-height: 1.1;
    letter-spacing: -0.02em;
    margin-bottom: 24px;
    color: var(--text-primary);
}

.subtitle {
    font-size: 1.125rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto 40px;
}

/* Instructions Content */
.instructions-content {
    text-align: left;
    margin-bottom: 40px;
}

.intro {
    text-align: center;
    font-size: 1.1rem;
    font-weight: 500;
    margin-bottom: 30px;
}

.two-col-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
    margin-bottom: 30px;
}

.info-card {
    background: var(--btn-secondary-bg);
    padding: 24px;
    border-radius: 16px;
}

.info-card h3 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 12px;
}

.info-card p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: 10px;
}

.trust-text {
    text-align: center;
    font-size: 0.85rem;
    color: var(--text-light);
    margin-top: 40px;
}

.trust-text a {
    text-decoration: underline;
    text-decoration-thickness: 1px;
    text-underline-offset: 3px;
}

/* Funny Instructions List */
.funny-instructions {
    list-style: none;
    padding: 0;
    margin: 0 0 40px 0;
}

.funny-instructions li {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    margin-bottom: 24px;
    font-size: 1rem;
    line-height: 1.5;
}

.funny-instructions .emoji {
    font-size: 1.5rem;
    line-height: 1.2;
    flex-shrink: 0;
}

/* Did You Know Card */
.did-you-know {
    background: var(--text-primary);
    color: var(--bg-color);
    padding: 32px;
    border-radius: 16px;
    margin-bottom: 30px;
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
}

.dyk-title {
    font-family: var(--font-serif);
    font-size: 2rem;
    font-weight: 500;
    font-style: italic;
    margin-bottom: 16px;
    color: #fcd34d; /* Golden accent color for the pop */
}

.did-you-know p {
    font-size: 0.95rem;
    line-height: 1.6;
    color: #f3f4f6; /* Very light gray */
}

.mt-2 {
    margin-top: 12px;
}

/* Alert Box */
.alert-box {
    background: #fffbeb;
    border: 1px solid #fde68a;
    color: #92400e;
    padding: 16px;
    border-radius: 12px;
    font-size: 0.95rem;
    text-align: left;
}

.mb-4 {
    margin-bottom: 24px;
}

/* Video Carousel */
.video-carousel {
    display: flex;
    overflow-x: auto;
    gap: 16px;
    padding-bottom: 16px;
    -webkit-overflow-scrolling: touch;
    scroll-snap-type: x mandatory;
}

.video-carousel iframe {
    flex: 0 0 auto;
    border-radius: 12px;
    border: 1px solid var(--border-color);
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    scroll-snap-align: center;
    background: #fafafa;
}

.video-carousel::-webkit-scrollbar {
    height: 8px;
}
.video-carousel::-webkit-scrollbar-track {
    background: var(--btn-secondary-bg);
    border-radius: 4px;
}
.video-carousel::-webkit-scrollbar-thumb {
    background: #d1d5db;
    border-radius: 4px;
}
.video-carousel::-webkit-scrollbar-thumb:hover {
    background: #9ca3af;
}

/* Form Fields */
.form-fields {
    max-width: 480px;
    margin: 0 auto;
    text-align: left;
}

.input-group {
    margin-bottom: 24px;
}

label {
    display: block;
    margin-bottom: 8px;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-primary);
}

input[type="text"],
input[type="email"],
input[type="tel"],
input[type="date"],
textarea {
    width: 100%;
    padding: 12px 16px;
    background: #ffffff;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-primary);
    font-family: var(--font-sans);
    font-size: 1rem;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

input:focus,
textarea:focus {
    outline: none;
    border-color: var(--text-primary);
    box-shadow: 0 0 0 1px var(--text-primary);
}

/* Buttons */
.btn-group {
    display: flex;
    gap: 16px;
}

.btn-group.center {
    justify-content: center;
}

.mt-4 {
    margin-top: 32px;
}

.btn {
    padding: 14px 28px;
    border: none;
    border-radius: 9999px;
    font-family: var(--font-sans);
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: opacity 0.2s ease;
    text-decoration: none;
    display: inline-block;
}

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

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

.btn:hover {
    opacity: 0.85;
}

/* Permission Step */
.permission-box {
    background: var(--btn-secondary-bg);
    padding: 24px;
    border-radius: 12px;
    margin-bottom: 24px;
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.permission-box ul {
    margin-top: 10px;
    padding-left: 20px;
}

.dropbox-container p {
    margin-bottom: 15px;
    line-height: 1.5;
}

/* FAQ Accordion */
.faq-section {
    margin-top: 80px;
    text-align: left;
    width: 100%;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.accordion-item {
    border-bottom: 1px solid var(--border-color);
}

.accordion-header {
    width: 100%;
    text-align: left;
    background: none;
    border: none;
    padding: 20px 0;
    font-size: 1.05rem;
    font-weight: 600;
    color: var(--text-primary);
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-family: var(--font-sans);
}

.accordion-header::after {
    content: '+';
    font-size: 1.5rem;
    font-weight: 400;
    transition: transform 0.3s ease;
}

.accordion-header.active::after {
    transform: rotate(45deg);
}

.accordion-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
}

.accordion-content p {
    padding-bottom: 20px;
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.6;
}

.custom-checkbox {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    cursor: pointer;
    font-size: 0.9rem;
    user-select: none;
    margin-bottom: 20px;
}

.custom-checkbox input {
    margin-top: 4px;
    accent-color: var(--text-primary);
    width: 16px;
    height: 16px;
}

/* Validation */
.invalid input, .invalid textarea {
    border-color: var(--error-color);
}

/* Dropbox Success */
.dropbox-container {
    background: var(--btn-secondary-bg);
    padding: 40px;
    border-radius: 20px;
    margin-top: 40px;
}

.reminder-text {
    margin: 16px 0;
    color: var(--text-secondary);
}

/* Media Queries */
@media (max-width: 768px) {
    .serif-heading {
        font-size: 3rem;
    }
    
    .two-col-grid {
        grid-template-columns: 1fr;
    }
}
@media (max-width: 480px) {
    .serif-heading {
        font-size: 2.25rem;
    }
    .btn-group {
        flex-direction: column;
        width: 100%;
    }
    .btn {
        width: 100%;
    }
    .form-fields {
        width: 100%;
    }
}