* {
    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;
    --gold: #fbbf24;
    --silver: #9ca3af;
    --bronze: #f97316;
}

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 - Reuse from other pages */
.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-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;
}

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

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

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

.btn-login, .btn-signup {
    padding: 0.5rem 1.5rem;
    border-radius: 8px;
    cursor: pointer;
    border: none;
}

.btn-login {
    background: transparent;
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.btn-signup {
    background: var(--gradient);
    color: white;
}

/* Hero Section */
.referral-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 3rem;
}

.reward-badges {
    display: flex;
    justify-content: center;
    gap: 2rem;
    flex-wrap: wrap;
}

.reward-badge {
    display: 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;
}

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

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

.reward-amount {
    display: block;
    font-size: 1.5rem;
    font-weight: bold;
}

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

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

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

.process-visual {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 2rem;
    flex-wrap: wrap;
}

.process-step {
    flex: 1;
    min-width: 200px;
    text-align: center;
    position: relative;
}

.step-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.step-number {
    position: absolute;
    top: -10px;
    right: 50%;
    transform: translateX(50%);
    background: var(--gradient);
    color: white;
    width: 30px;
    height: 30px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
}

.process-step h3 {
    font-size: 1.3rem;
    margin-bottom: 0.5rem;
}

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

.process-arrow {
    font-size: 2rem;
    color: var(--primary-color);
}

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

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

.calculator-card {
    max-width: 800px;
    margin: 0 auto;
    background: var(--light-bg);
    border-radius: 20px;
    padding: 3rem;
    border: 1px solid var(--border-color);
}

.calculator-input {
    text-align: center;
    margin-bottom: 3rem;
}

.calculator-input label {
    display: block;
    font-size: 1.2rem;
    margin-bottom: 1rem;
}

.calculator-input input[type="number"] {
    width: 120px;
    padding: 1rem;
    font-size: 1.5rem;
    background: var(--dark-bg);
    border: 1px solid var(--primary-color);
    border-radius: 10px;
    color: var(--text-primary);
    text-align: center;
    margin-bottom: 1rem;
}

.calculator-input input[type="range"] {
    width: 100%;
    max-width: 400px;
}

.calculator-results {
    display: grid;
    gap: 1.5rem;
}

.result-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem;
    background: rgba(99, 102, 241, 0.05);
    border-radius: 12px;
    border: 1px solid rgba(99, 102, 241, 0.2);
}

.result-item.featured {
    background: var(--gradient);
    border: none;
}

.result-label {
    font-size: 1.1rem;
}

.result-value {
    font-size: 1.8rem;
    font-weight: bold;
}

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

/* Referral Tools */
.referral-tools {
    padding: 80px 20px;
    max-width: 1200px;
    margin: 0 auto;
}

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

.tools-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(500px, 1fr));
    gap: 2rem;
}

.tool-card {
    background: var(--light-bg);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 2rem;
}

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

.link-container {
    display: flex;
    gap: 1rem;
    margin-bottom: 1rem;
}

.link-container input {
    flex: 1;
    padding: 1rem;
    background: var(--dark-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-primary);
}

.btn-copy {
    padding: 1rem 2rem;
    background: var(--gradient);
    color: white;
    border: none;
    border-radius: 8px;
    cursor: pointer;
}

#email-template {
    width: 100%;
    height: 150px;
    padding: 1rem;
    background: var(--dark-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-primary);
    resize: none;
    margin-bottom: 1rem;
}

.btn-copy-template {
    width: 100%;
    padding: 0.75rem;
    background: var(--gradient);
    color: white;
    border: none;
    border-radius: 8px;
    cursor: pointer;
}

.social-templates {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.social-template {
    padding: 1rem;
    background: var(--dark-bg);
    border-radius: 8px;
    border: 1px solid var(--border-color);
}

.asset-buttons {
    display: grid;
    gap: 1rem;
    margin-bottom: 1rem;
}

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

.btn-asset:hover {
    background: var(--primary-color);
    color: white;
}

/* Tracking Dashboard */
.referral-tracking {
    padding: 80px 20px;
    background: linear-gradient(180deg, var(--dark-bg) 0%, rgba(30, 41, 59, 0.5) 100%);
}

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

.tracking-dashboard {
    max-width: 1200px;
    margin: 0 auto;
}

.tracking-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.stat-card {
    background: var(--light-bg);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 2rem;
    text-align: center;
}

.stat-icon {
    font-size: 2rem;
    margin-bottom: 1rem;
}

.stat-number {
    font-size: 2.5rem;
    font-weight: bold;
    color: var(--primary-color);
}

.stat-label {
    color: var(--text-secondary);
    margin-top: 0.5rem;
}

.tracking-table {
    background: var(--light-bg);
    border-radius: 16px;
    padding: 2rem;
    border: 1px solid var(--border-color);
}

.tracking-table h3 {
    margin-bottom: 1.5rem;
}

table {
    width: 100%;
    border-collapse: collapse;
}

th {
    text-align: left;
    padding: 1rem;
    border-bottom: 1px solid var(--border-color);
    color: var(--text-secondary);
}

td {
    padding: 1rem;
    border-bottom: 1px solid rgba(51, 65, 85, 0.3);
}

.empty-state {
    text-align: center;
    padding: 3rem;
}

.btn-share-first {
    margin-top: 1rem;
    padding: 0.75rem 2rem;
    background: var(--gradient);
    color: white;
    border: none;
    border-radius: 8px;
    cursor: pointer;
}

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

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

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

.tip-card {
    background: rgba(99, 102, 241, 0.05);
    border: 1px solid rgba(99, 102, 241, 0.2);
    border-radius: 16px;
    padding: 2rem;
    text-align: center;
}

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

.tip-card h3 {
    font-size: 1.3rem;
    margin-bottom: 1rem;
}

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

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

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

.leaderboard-card {
    max-width: 800px;
    margin: 0 auto;
    background: var(--light-bg);
    border-radius: 16px;
    overflow: hidden;
    border: 1px solid var(--border-color);
}

.leaderboard-header {
    background: var(--gradient);
    padding: 1.5rem;
    text-align: center;
    font-size: 1.1rem;
}

.leaderboard-list {
    padding: 1.5rem;
}

.leaderboard-item {
    display: flex;
    align-items: center;
    padding: 1.5rem;
    margin-bottom: 1rem;
    background: var(--dark-bg);
    border-radius: 12px;
    border: 1px solid var(--border-color);
}

.leaderboard-item.gold {
    border-color: var(--gold);
    background: linear-gradient(135deg, rgba(251, 191, 36, 0.1) 0%, var(--dark-bg) 100%);
}

.leaderboard-item.silver {
    border-color: var(--silver);
    background: linear-gradient(135deg, rgba(156, 163, 175, 0.1) 0%, var(--dark-bg) 100%);
}

.leaderboard-item.bronze {
    border-color: var(--bronze);
    background: linear-gradient(135deg, rgba(249, 115, 22, 0.1) 0%, var(--dark-bg) 100%);
}

.rank {
    font-size: 1.5rem;
    font-weight: bold;
    width: 50px;
}

.referrer-info {
    flex: 1;
    margin-left: 1rem;
}

.referrer-name {
    display: block;
    font-size: 1.2rem;
    font-weight: 600;
}

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

.reward {
    font-size: 2rem;
}

/* FAQ */
.referral-faq {
    padding: 80px 20px;
    max-width: 1200px;
    margin: 0 auto;
}

.referral-faq 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;
}

.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;
}

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

/* CTA Section */
.referral-cta {
    padding: 80px 20px;
    text-align: center;
    background: var(--gradient);
}

.referral-cta h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.referral-cta p {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    opacity: 0.95;
}

.cta-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

.btn-get-link,
.btn-share-now {
    padding: 1rem 2rem;
    border-radius: 12px;
    font-size: 1.1rem;
    cursor: pointer;
    border: none;
    transition: transform 0.3s;
}

.btn-get-link {
    background: white;
    color: var(--primary-color);
}

.btn-share-now {
    background: transparent;
    color: white;
    border: 2px solid white;
}

.btn-get-link:hover,
.btn-share-now:hover {
    transform: translateY(-3px);
}

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

.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;
}

/* Responsive */
@media (max-width: 768px) {
    .nav-menu,
    .nav-buttons {
        display: none;
    }
    
    .process-visual {
        flex-direction: column;
    }
    
    .process-arrow {
        transform: rotate(90deg);
    }
    
    .tools-grid {
        grid-template-columns: 1fr;
    }
    
    .tips-grid,
    .faq-grid {
        grid-template-columns: 1fr;
    }
    
    .cta-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .cta-buttons button {
        width: 100%;
        max-width: 300px;
    }
}