/* Phase 10: extracted from user_register.html. */
.register-container {
        max-width: 500px;
        margin: 3rem auto;
        padding: 2.5rem;
        background: var(--card);
        border-radius: 20px;
        box-shadow: 0 4px 20px rgba(0,0,0,0.15);
        border: 1px solid var(--border);
    }
    
    .register-header {
        text-align: center;
        margin-bottom: 2rem;
    }
    
    .register-header h2 {
        color: var(--text);
        margin-bottom: 0.5rem;
        font-size: 1.75rem;
    }
    
    .register-header p {
        color: var(--text-muted);
        font-size: 0.95rem;
    }
    
    .trial-box {
        background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
        color: white;
        padding: 1.5rem;
        border-radius: 16px;
        margin-bottom: 1.5rem;
        text-align: center;
    }
    
    .trial-box h3 {
        margin: 0 0 0.5rem 0;
        font-size: 1.3rem;
    }
    
    .trial-box .days {
        font-size: 2.5rem;
        font-weight: 800;
        display: block;
        margin: 0.5rem 0;
    }
    
    .trial-box p {
        margin: 0;
        opacity: 0.9;
        font-size: 0.95rem;
    }
    
    .form-group {
        margin-bottom: 1.5rem;
    }
    
    .form-label {
        display: block;
        font-weight: 600;
        margin-bottom: 0.5rem;
        color: var(--text);
    }
    
    .form-input {
        width: 100%;
        padding: 0.875rem 1rem;
        border: 2px solid var(--border);
        border-radius: 12px;
        font-size: 1rem;
        transition: all 0.2s;
        background: var(--bg);
        color: var(--text);
    }
    
    .form-input:focus {
        border-color: #667eea;
        outline: none;
        box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.2);
    }
    
    .form-input::placeholder {
        color: var(--text-muted);
    }
    
    .btn-register {
        width: 100%;
        padding: 1rem;
        background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
        color: white;
        border: none;
        border-radius: 12px;
        font-size: 1.1rem;
        font-weight: 600;
        cursor: pointer;
        transition: transform 0.2s, box-shadow 0.2s;
    }
    
    .btn-register:hover {
        transform: translateY(-2px);
        box-shadow: 0 4px 12px rgba(102, 126, 234, 0.4);
    }
    
    .referral-group {
        background: linear-gradient(135deg, rgba(254, 243, 199, 0.1) 0%, rgba(253, 230, 138, 0.1) 100%);
        padding: 1rem;
        border-radius: 12px;
        border-left: 4px solid #f59e0b;
    }
    
    .referral-group .form-label {
        color: var(--text);
    }
    
    .referral-group .optional {
        font-weight: normal;
        color: var(--text-muted);
        font-size: 0.85rem;
    }
    
    .referral-input {
        text-transform: uppercase;
        letter-spacing: 1px;
    }
    
    .referral-hint {
        display: block;
        margin-top: 0.5rem;
        color: var(--text-muted);
        font-size: 0.85rem;
    }
    
    .info-box {
        background: linear-gradient(135deg, rgba(239, 246, 255, 0.1) 0%, rgba(219, 234, 254, 0.1) 100%);
        border-left: 4px solid #3b82f6;
        padding: 1rem;
        border-radius: 8px;
        margin-bottom: 1.5rem;
        font-size: 0.9rem;
        color: var(--text);
    }
    
    .info-box strong {
        color: #3b82f6;
    }
    
    .login-link {
        text-align: center;
        margin-top: 1.5rem;
        color: var(--text-muted);
    }
    
    .login-link a {
        color: #667eea;
        text-decoration: none;
        font-weight: 600;
    }
    
    .login-link a:hover {
        text-decoration: underline;
    }
    
    .steps {
        margin-bottom: 1.5rem;
    }
    
    .step {
        display: flex;
        align-items: center;
        margin-bottom: 0.75rem;
        padding: 0.75rem;
        background: var(--bg);
        border-radius: 10px;
    }
    
    .step-number {
        width: 28px;
        height: 28px;
        background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
        color: white;
        border-radius: 50%;
        display: flex;
        align-items: center;
        justify-content: center;
        font-weight: 700;
        margin-right: 0.75rem;
        font-size: 0.9rem;
        flex-shrink: 0;
    }
    
    .step-text {
        color: var(--text);
        font-size: 0.95rem;
    }