/* Backseat DJ - Waitlist Landing Page (Mobile-First) */

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

:root {
    --primary: #667eea;
    --primary-dark: #5568d3;
    --secondary: #764ba2;
    --dark: #1a1a2e;
    --dark-light: #16213e;
    --text-dark: #0f3460;
    --text-light: #e94560;
    --bg-light: #f8f9ff;
    --border: #e1e8ed;
    --success: #10b981;
    --error: #ef4444;
}

body {
    font-family: 'Poppins', -apple-system, BlinkMacSystemFont, sans-serif;
    line-height: 1.6;
    color: #333;
    background: #fff;
    -webkit-font-smoothing: antialiased;
}

/* Header */
.header {
    padding: 1rem;
    background: var(--dark);
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: white;
    font-size: 1.25rem;
    font-weight: 700;
}

.logo i {
    color: var(--primary);
    font-size: 1.5rem;
}

/* Main Content */
.main-content {
    max-width: 600px;
    margin: 0 auto;
}

/* Hero Section */
.hero-section {
    padding: 2rem 1.5rem;
    text-align: center;
    background: linear-gradient(135deg, var(--dark) 0%, var(--dark-light) 100%);
    color: white;
}

.hero-cta-button {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    background: white;
    color: var(--dark);
    border: none;
    padding: 1rem 2rem;
    border-radius: 50px;
    font-size: 1rem;
    font-weight: 600;
    font-family: 'Poppins', sans-serif;
    margin-top: 1.5rem;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.hero-cta-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.3);
    background: #f8f9ff;
}

.hero-cta-button:active {
    transform: translateY(0);
}

.hero-cta-button i {
    font-size: 1.1rem;
    color: var(--primary);
}

.hero-title {
    font-size: 2rem;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 1rem;
}

.hero-subtitle {
    font-size: 1.1rem;
    opacity: 0.9;
    margin-bottom: 1rem;
    font-weight: 300;
}

/* Intro Section */
.intro-section {
    padding: 2rem 1.5rem;
    background: white;
}

.intro-text {
    font-size: 1.1rem;
    font-weight: 500;
    color: var(--dark);
    margin-bottom: 1rem;
    text-align: center;
}

.intro-bullets {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    max-width: 500px;
    margin: 0 auto;
}

.intro-bullets li {
    padding-left: 1.75rem;
    position: relative;
    color: #555;
    font-size: 0.95rem;
    line-height: 1.6;
}

.intro-bullets li::before {
    content: '•';
    position: absolute;
    left: 0;
    color: var(--primary);
    font-size: 1.5rem;
    font-weight: 700;
    line-height: 1.2;
}

/* Why Music Matters */
.why-music-section {
    padding: 2.5rem 1.5rem;
    background: var(--bg-light);
    text-align: center;
}

.why-music-section h2 {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 1.5rem;
}

.why-music-section p {
    font-size: 1rem;
    color: #555;
    line-height: 1.7;
    margin-bottom: 1rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.why-music-section p:last-child {
    margin-bottom: 0;
}

/* Why Backseat.Club Exists */
.why-exists-section {
    padding: 2.5rem 1.5rem;
    background: white;
    text-align: center;
}

.why-exists-section h2 {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 1.5rem;
}

.why-exists-section p {
    font-size: 1rem;
    color: #555;
    line-height: 1.7;
    margin-bottom: 1rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.why-exists-section p:last-child {
    margin-bottom: 0;
}

/* How It Works */
.how-it-works {
    padding: 2.5rem 1.5rem;
    background: white;
}

.section-heading {
    font-size: 1.75rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    text-align: center;
    color: var(--dark);
}

.steps {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.step {
    display: flex;
    gap: 1rem;
}

.step-number {
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    font-weight: 700;
    flex-shrink: 0;
}

.step-content h3 {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 0.25rem;
    color: var(--dark);
}

.step-content p {
    color: #666;
    font-size: 0.95rem;
}

/* Benefits */
.benefits {
    padding: 2rem 1.5rem;
    background: var(--bg-light);
    display: grid;
    gap: 0.75rem;
}

.benefit {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem;
    background: white;
    border-radius: 12px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.benefit i {
    color: var(--primary);
    font-size: 1.25rem;
    width: 24px;
    flex-shrink: 0;
}

.benefit span {
    font-weight: 500;
    color: var(--dark);
    font-size: 0.95rem;
}

/* Form Section */
.form-section {
    padding: 2.5rem 1.5rem;
    background: white;
}

.form-header {
    text-align: center;
    margin-bottom: 2rem;
}

.form-header h2 {
    font-size: 1.75rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    color: var(--dark);
}

.form-header p {
    color: #666;
    font-size: 1rem;
}

/* Form Fields */
.waitlist-form {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.form-field {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.form-field label {
    font-weight: 600;
    color: var(--dark);
    font-size: 0.95rem;
}

.optional {
    color: #999;
    font-weight: 400;
    font-size: 0.85rem;
}

.help-text {
    font-weight: 600;
    color: #666;
    font-size: 0.85rem;
    margin: -0.25rem 0 0.25rem 0;
}

.form-field input[type="text"],
.form-field input[type="email"],
.form-field input[type="tel"] {
    width: 100%;
    padding: 1rem;
    border: 2px solid var(--border);
    border-radius: 12px;
    font-size: 1rem;
    font-family: 'Poppins', sans-serif;
    transition: all 0.3s ease;
}

.form-field input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 4px rgba(102, 126, 234, 0.1);
}

/* Checkbox List */
.checkbox-list {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.checkbox-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem;
    background: var(--bg-light);
    border: 2px solid transparent;
    border-radius: 12px;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
}

.checkbox-item:active {
    transform: scale(0.98);
}

.checkbox-item input[type="checkbox"] {
    position: absolute;
    opacity: 0;
    cursor: pointer;
}

.checkbox-custom {
    width: 24px;
    height: 24px;
    border: 2px solid #d1d5db;
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
    flex-shrink: 0;
}

.checkbox-custom::after {
    content: '\f00c';
    font-family: 'Font Awesome 6 Free';
    font-weight: 900;
    color: white;
    font-size: 0.75rem;
    opacity: 0;
    transform: scale(0);
    transition: all 0.2s ease;
}

.checkbox-item input:checked ~ .checkbox-custom {
    background: var(--primary);
    border-color: var(--primary);
}

.checkbox-item input:checked ~ .checkbox-custom::after {
    opacity: 1;
    transform: scale(1);
}

.checkbox-item input:checked ~ .checkbox-text {
    color: var(--primary);
    font-weight: 600;
}

.checkbox-item:has(input:checked) {
    border-color: var(--primary);
    background: rgba(102, 126, 234, 0.05);
}

.checkbox-text {
    flex: 1;
    font-size: 0.95rem;
    color: var(--dark);
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.checkbox-text i {
    font-size: 1.1rem;
}

/* Conditional Field */
.conditional-field {
    margin-top: 0.5rem;
    width: 100%;
    padding: 1rem;
    border: 2px solid var(--border);
    border-radius: 12px;
    font-size: 0.95rem;
    font-family: 'Poppins', sans-serif;
}

/* Submit Button */
.submit-button {
    width: 100%;
    padding: 1.25rem;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: white;
    border: none;
    border-radius: 12px;
    font-size: 1.1rem;
    font-weight: 600;
    font-family: 'Poppins', sans-serif;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.3);
    margin-top: 1rem;
}

.submit-button:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(102, 126, 234, 0.4);
}

.submit-button:active:not(:disabled) {
    transform: translateY(0);
}

.submit-button:disabled {
    opacity: 0.7;
    cursor: not-allowed;
}

.btn-text,
.btn-spinner {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.form-note {
    text-align: center;
    font-size: 0.85rem;
    color: #666;
    margin-top: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.form-note i {
    color: var(--success);
}

/* Trust Section */
.trust-section {
    padding: 2rem 1.5rem;
    background: var(--bg-light);
    text-align: center;
}

.trust-text {
    color: #666;
    font-size: 0.95rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.trust-text i {
    color: var(--success);
}

.trust-text a {
    color: var(--primary);
    text-decoration: none;
    font-weight: 600;
}

.trust-text a:hover {
    text-decoration: underline;
}

/* Toast */
.toast {
    position: fixed;
    bottom: 2rem;
    left: 1rem;
    right: 1rem;
    background: var(--dark);
    color: white;
    padding: 1rem 1.5rem;
    border-radius: 12px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
    display: none;
    align-items: center;
    gap: 0.75rem;
    z-index: 1000;
    animation: slideUp 0.3s ease;
}

.toast.show {
    display: flex;
}

.toast.success {
    background: var(--success);
}

.toast.error {
    background: var(--error);
}

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

/* Tablet & Desktop (min-width: 640px) */
@media (min-width: 640px) {
    .header {
        padding: 1.5rem 2rem;
    }

    .logo {
        font-size: 1.5rem;
    }

    .hero-section {
        padding: 3rem 2rem;
    }

    .hero-title {
        font-size: 2.5rem;
    }

    .hero-subtitle {
        font-size: 1.25rem;
    }

    .intro-section {
        padding: 3rem 2rem;
    }

    .intro-text {
        font-size: 1.25rem;
    }

    .intro-bullets li {
        font-size: 1rem;
    }

    .why-music-section {
        padding: 3rem 2rem;
    }

    .why-music-section h2 {
        font-size: 2rem;
    }

    .why-music-section p {
        font-size: 1.1rem;
    }

    .why-exists-section {
        padding: 3rem 2rem;
    }

    .why-exists-section h2 {
        font-size: 2rem;
    }

    .why-exists-section p {
        font-size: 1.1rem;
    }

    .how-it-works,
    .form-section {
        padding: 3rem 2rem;
    }

    .benefits {
        padding: 3rem 2rem;
        grid-template-columns: 1fr 1fr;
    }

    .section-heading {
        font-size: 2rem;
    }

    .toast {
        left: 50%;
        right: auto;
        transform: translateX(-50%);
        min-width: 400px;
    }
}

/* Large Desktop (min-width: 1024px) */
@media (min-width: 1024px) {
    .main-content {
        max-width: 700px;
    }

    .hero-title {
        font-size: 3rem;
    }

    .steps {
        gap: 2rem;
    }
}