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

:root {
    --primary-color: #6366f1;
    --secondary-color: #8b5cf6;
    --dark-bg: #0f172a;
    --light-bg: #1e293b;
    --text-primary: #f1f5f9;
    --text-secondary: #94a3b8;
    --border-color: #334155;
    --gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --success: #10b981;
    --warning: #f59e0b;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background: var(--dark-bg);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
}

/* Navbar */
.navbar {
    background: rgba(15, 23, 42, 0.95);
    backdrop-filter: blur(10px);
    padding: 1rem 0;
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 100;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.logo-icon {
    width: 40px;
    height: 40px;
    transition: transform 0.3s ease;
}

.logo:hover .logo-icon {
    transform: rotate(10deg) scale(1.05);
}

.logo-text {
    font-size: 1.5rem;
    font-weight: bold;
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    text-decoration: none;
}

.logo-tagline {
    font-size: 0.85rem;
    color: var(--text-secondary);
    border-left: 1px solid var(--border-color);
    padding-left: 0.75rem;
    font-weight: 500;
    letter-spacing: 0.5px;
    text-transform: uppercase;
}

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

.nav-menu a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color 0.3s;
}

.nav-menu a:hover,
.nav-menu a.active {
    color: var(--text-primary);
}

.nav-buttons {
    display: flex;
    gap: 1rem;
}

.btn-login {
    background: transparent;
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    padding: 0.5rem 1.5rem;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s;
}

.btn-login:hover {
    background: var(--light-bg);
}

.btn-signup {
    background: var(--gradient);
    color: white;
    border: none;
    padding: 0.5rem 1.5rem;
    border-radius: 8px;
    cursor: pointer;
    transition: transform 0.3s;
}

.btn-signup:hover {
    transform: translateY(-2px);
}

/* Review Hero */
.review-hero {
    padding: 80px 20px;
    text-align: center;
    background: linear-gradient(180deg, var(--dark-bg) 0%, rgba(30, 41, 59, 0.5) 100%);
}

.hero-title {
    font-size: clamp(2rem, 4vw, 3rem);
    margin-bottom: 1rem;
}

.gradient-text {
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto 2rem;
}

.reward-badge {
    display: inline-flex;
    align-items: center;
    gap: 1rem;
    background: rgba(99, 102, 241, 0.1);
    border: 1px solid var(--primary-color);
    padding: 1rem 2rem;
    border-radius: 50px;
    margin-top: 2rem;
}

.reward-icon {
    font-size: 2rem;
}

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

.reward-amount {
    display: block;
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--text-primary);
}

.reward-desc {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* How It Works */
.how-it-works {
    padding: 80px 20px;
    max-width: 1200px;
    margin: 0 auto;
}

.how-it-works h2 {
    font-size: 2.5rem;
    text-align: center;
    margin-bottom: 3rem;
}

.steps-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.step-card {
    background: var(--light-bg);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 2rem;
    text-align: center;
    position: relative;
    transition: transform 0.3s, box-shadow 0.3s;
}

.step-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 40px rgba(99, 102, 241, 0.1);
}

.step-number {
    width: 50px;
    height: 50px;
    background: var(--gradient);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: bold;
    color: white;
    margin: 0 auto 1.5rem;
}

.step-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.step-card p {
    color: var(--text-secondary);
}

/* Review Platforms */
.review-platforms {
    padding: 80px 20px;
    background: linear-gradient(180deg, rgba(30, 41, 59, 0.5) 0%, var(--dark-bg) 100%);
}

.review-platforms h2 {
    font-size: 2.5rem;
    text-align: center;
    margin-bottom: 1rem;
}

.platforms-subtitle {
    text-align: center;
    color: var(--text-secondary);
    font-size: 1.1rem;
    margin-bottom: 3rem;
}

.platforms-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.platform-card {
    background: var(--light-bg);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 2rem;
    text-align: center;
    text-decoration: none;
    color: var(--text-primary);
    position: relative;
    transition: all 0.3s;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.platform-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(99, 102, 241, 0.2);
    border-color: var(--primary-color);
}

.platform-card.featured {
    border-color: var(--primary-color);
    background: linear-gradient(180deg, rgba(99, 102, 241, 0.1) 0%, var(--light-bg) 100%);
}

.featured-badge {
    position: absolute;
    top: -10px;
    right: 20px;
    background: var(--gradient);
    color: white;
    padding: 0.3rem 1rem;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: bold;
}

.platform-logo {
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
}

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

.platform-card h3 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

.platform-card p {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.platform-rating {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.stars {
    color: #fbbf24;
}

.rating-text {
    color: var(--text-secondary);
    font-size: 0.85rem;
}

.btn-platform {
    background: transparent;
    color: var(--primary-color);
    border: 1px solid var(--primary-color);
    padding: 0.75rem 1.5rem;
    border-radius: 8px;
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.3s;
}

.platform-card:hover .btn-platform {
    background: var(--gradient);
    color: white;
    border-color: transparent;
}

/* Review Tips */
.review-tips {
    padding: 80px 20px;
    max-width: 1200px;
    margin: 0 auto;
}

.review-tips h2 {
    font-size: 2.5rem;
    text-align: center;
    margin-bottom: 3rem;
}

.tips-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.tip-card {
    text-align: center;
    padding: 2rem;
    background: rgba(99, 102, 241, 0.05);
    border-radius: 12px;
    border: 1px solid rgba(99, 102, 241, 0.2);
    transition: all 0.3s;
}

.tip-card:hover {
    transform: translateY(-5px);
    background: rgba(99, 102, 241, 0.1);
}

.tip-icon {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.tip-card h3 {
    font-size: 1.3rem;
    margin-bottom: 0.5rem;
}

.tip-card p {
    color: var(--text-secondary);
}

/* Submit Review Form */
.submit-review {
    padding: 80px 20px;
    background: linear-gradient(180deg, var(--dark-bg) 0%, rgba(30, 41, 59, 0.5) 100%);
}

.submit-review h2 {
    font-size: 2.5rem;
    text-align: center;
    margin-bottom: 1rem;
}

.submit-subtitle {
    text-align: center;
    color: var(--text-secondary);
    font-size: 1.1rem;
    margin-bottom: 3rem;
}

.submission-form {
    max-width: 600px;
    margin: 0 auto;
    background: var(--light-bg);
    padding: 3rem;
    border-radius: 16px;
    border: 1px solid var(--border-color);
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
    font-weight: 500;
}

.form-group input,
.form-group select {
    width: 100%;
    padding: 1rem;
    background: var(--dark-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-primary);
    font-size: 1rem;
    transition: border-color 0.3s;
}

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

.form-hint {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-top: 0.3rem;
}

.verification-notice {
    display: flex;
    gap: 1rem;
    background: rgba(99, 102, 241, 0.1);
    border: 1px solid var(--primary-color);
    border-radius: 12px;
    padding: 1.5rem;
    margin: 2rem 0;
}

.notice-icon {
    font-size: 1.5rem;
}

.notice-content h4 {
    margin-bottom: 0.5rem;
}

.notice-content ul {
    list-style: none;
    padding: 0;
}

.notice-content li {
    padding: 0.3rem 0;
    color: var(--text-secondary);
}

.notice-content li:before {
    content: '✓ ';
    color: var(--success);
    font-weight: bold;
}

.btn-submit {
    width: 100%;
    background: var(--gradient);
    color: white;
    border: none;
    padding: 1.25rem;
    border-radius: 12px;
    font-size: 1.1rem;
    font-weight: bold;
    cursor: pointer;
    transition: transform 0.3s, box-shadow 0.3s;
}

.btn-submit:hover {
    transform: translateY(-2px);
    box-shadow: 0 20px 40px rgba(99, 102, 241, 0.3);
}

/* Review Examples */
.review-examples {
    padding: 80px 20px;
    max-width: 1200px;
    margin: 0 auto;
}

.review-examples h2 {
    font-size: 2.5rem;
    text-align: center;
    margin-bottom: 3rem;
}

.examples-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
}

.example-card {
    background: var(--light-bg);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 2rem;
    transition: transform 0.3s;
}

.example-card:hover {
    transform: translateY(-5px);
}

.example-stars {
    color: #fbbf24;
    font-size: 1.2rem;
    margin-bottom: 1rem;
}

.example-text {
    color: var(--text-primary);
    font-style: italic;
    line-height: 1.8;
    margin-bottom: 1.5rem;
}

.example-author {
    display: flex;
    flex-direction: column;
    gap: 0.2rem;
}

.example-author strong {
    color: var(--text-primary);
}

.example-author span {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* FAQ Section */
.faq-section {
    padding: 80px 20px;
    background: linear-gradient(180deg, rgba(30, 41, 59, 0.5) 0%, var(--dark-bg) 100%);
}

.faq-section h2 {
    font-size: 2.5rem;
    text-align: center;
    margin-bottom: 3rem;
}

.faq-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.faq-item {
    background: var(--light-bg);
    padding: 2rem;
    border-radius: 12px;
    border: 1px solid var(--border-color);
}

.faq-item h4 {
    font-size: 1.2rem;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.faq-item p {
    color: var(--text-secondary);
    line-height: 1.6;
}

/* Footer */
.footer {
    background: var(--dark-bg);
    padding: 2rem;
    border-top: 1px solid var(--border-color);
    margin-top: 80px;
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    text-align: center;
}

.footer-links {
    margin-top: 1rem;
    display: flex;
    justify-content: center;
    gap: 2rem;
}

.footer-links a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color 0.3s;
}

.footer-links a:hover {
    color: var(--text-primary);
}

/* Responsive */
@media (max-width: 768px) {
    .nav-menu {
        display: none;
    }
    
    .nav-buttons {
        display: none;
    }
    
    .platforms-grid,
    .steps-grid,
    .tips-grid,
    .examples-grid,
    .faq-grid {
        grid-template-columns: 1fr;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .submission-form {
        padding: 2rem 1.5rem;
    }
}