/* Referral System Styles */

.referral-modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(5px);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 9999;
    padding: 20px;
}

.referral-modal {
    background: var(--bg-card, #1e293b);
    width: 100%;
    max-width: 400px;
    border-radius: 20px;
    padding: 30px;
    position: relative;
    border: 1px solid var(--border-color, #334155);
    box-shadow: 0 20px 50px rgba(0,0,0,0.5);
    text-align: center;
}

.referral-close-btn {
    position: absolute;
    top: 15px;
    right: 15px;
    background: none;
    border: none;
    color: var(--text-secondary, #94a3b8);
    font-size: 1.2rem;
    cursor: pointer;
    padding: 5px;
    transition: color 0.2s;
}

.referral-close-btn:hover {
    color: var(--text-primary, #f8fafc);
}

.referral-header {
    margin-bottom: 25px;
}

.referral-icon-bg {
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, #FFD700 0%, #FFA500 100%);
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    margin: 0 auto 15px;
    font-size: 30px;
    color: #000;
    box-shadow: 0 10px 20px rgba(255, 165, 0, 0.3);
}

.referral-header h2 {
    margin: 0 0 8px;
    font-size: 1.5rem;
    color: var(--text-primary, #fff);
}

.referral-header p {
    color: var(--text-secondary, #94a3b8);
    font-size: 0.95rem;
    margin: 0;
}

.highlight-gold {
    color: #FFD700;
    font-weight: bold;
}

/* Code Card */
.referral-card {
    background: var(--bg-tertiary, #0f172a);
    border: 1px dashed var(--border-color, #334155);
    border-radius: 12px;
    padding: 20px;
    margin-bottom: 25px;
}

.referral-code-label {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--text-muted, #64748b);
    margin-bottom: 10px;
}

.referral-code-display {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 10px;
    margin-bottom: 10px;
}

.referral-code-display span {
    font-family: monospace;
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--primary, #10b981);
    letter-spacing: 2px;
}

.copy-btn {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    width: 36px;
    height: 36px;
    border-radius: 8px;
    cursor: pointer;
    display: flex;
    justify-content: center;
    align-items: center;
    transition: all 0.2s;
}

.copy-btn:hover {
    background: var(--primary);
    border-color: var(--primary);
    color: #fff;
}

.referral-hint {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin: 0;
}

/* Sharing */
.referral-share-actions {
    display: flex;
    justify-content: center;
    gap: 15px;
    margin-bottom: 25px;
}

.share-btn {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    border: none;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 1.2rem;
    color: white;
    cursor: pointer;
    transition: transform 0.2s;
}

.share-btn:hover {
    transform: translateY(-3px);
}

.share-btn.twitter { background: #1DA1F2; }
.share-btn.whatsapp { background: #25D366; }
.share-btn.email { background: #EA4335; }

/* Divider */
.referral-divider {
    display: flex;
    align-items: center;
    text-align: center;
    margin: 20px 0;
    color: var(--text-muted);
    font-size: 0.8rem;
}

.referral-divider::before,
.referral-divider::after {
    content: '';
    flex: 1;
    border-bottom: 1px solid var(--border-color);
}

.referral-divider span {
    padding: 0 10px;
}

/* Input */
.referral-input-group {
    display: flex;
    gap: 10px;
    margin-bottom: 10px;
}

.referral-input-group input {
    flex: 1;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 10px 15px;
    color: white;
    outline: none;
}

.referral-input-group input:focus {
    border-color: var(--primary);
}

.redeemed-msg {
    color: var(--success, #10b981);
    font-size: 0.9rem;
    margin-top: 10px;
}

/* Success Modal */
.success-modal .success-icon {
    width: 80px;
    height: 80px;
    background: var(--success);
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 40px;
    color: white;
    margin: 0 auto 20px;
}

.reward-display {
    background: rgba(16, 185, 129, 0.1);
    border: 1px solid var(--success);
    border-radius: 12px;
    padding: 15px;
    margin: 20px 0;
    color: var(--success);
    font-weight: bold;
}

.reward-display .plus { font-size: 1.2rem; }
.reward-display .amount { font-size: 2rem; margin: 0 5px; }
.reward-display .currency { font-size: 1rem; }

/* Animation */
@keyframes popIn {
    0% { opacity: 0; transform: scale(0.9); }
    100% { opacity: 1; transform: scale(1); }
}

.animate-pop-in {
    animation: popIn 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}